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• PHP remote development workflow: git, symfony and hudson

  - by user2022

  I'm looking to develop a website and all the work will be done remotely (no local dev server). The reason for this is that my shared hosting company a2hosting has a specific configuration (symfony,mysql,git) that I don't want to spend time duplicating when I can just ssh and develop remotely or through netbeans remote editing features. My question is how can I use git to separate my site into three areas: live, staging and dev. Here's my initial thought: public_html (live site and git repo) testing: a mirror of the site used for visual tests (full git repo) dev/ticket# : git branches of public_html used for features and bug fixes (full git repo) Version Control with git: Initial setup: cd public_html git init git add * git commit -m ‘initial commit of the site’ cd .. git clone public_html testing mkdir dev Development: cd /dev git clone ../testing ticket# all work is done in ./dev/ticket#, then visit www.domain.com/dev/ticket# to visually test make granular commits as necessary until dev is done git push origin master:ticket# if the above fails: merge latest testing state into current dev work: git merge origin/master then try the push again mark ticket# as ready for integration integration and deployment process: cd ../../testing git merge ticket# -m "integration test for ticket# --no-ff (check for conflicts ) run hudson tests visit www.domain.com/testing for visual test if all tests pass: if this ticket marks the end of a big dev sprint: make a snapshot with git tag git push --tags origin else git push origin cd ../public_html git checkout -f (live site should have the latest dev from ticket#) else: revert the merge: git checkout master~1; git commit -m "reverting ticket#" update ticket# that testing failed with the failure details Snapshots: Each major deployment sprint should have a standard name and should be tracked. Method: git tag Naming convention: TBD Reverting site to previous state If something goes wrong, then revert to previous snapshot and debug the issue in dev with a new ticket#. Once the bug is fixed, follow the deployment process again. My questions: Does this workflow make sense, if not, any recommendations Is my approach for reverting correct or is there a better way to say 'revert to before x commit'

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• Why is my Internet connection randomly dropping?

  - by Jeanno

  Ever since I have installed 12.04 (clean install not an upgrade), i have been having a drop in the Internet connection. The drop in the connection can be anything from 15 seconds to about 3 mins, and then the connection comes back. This behaviour happens while I am actively browsing the Internet, or if I wake up the computer and open Firefox (sometimes I have connection and sometimes I don't) . Please note that when the internet connection is on, it is not slow (as speedtest.net results show) In the beginning, I thought it was a problem with the driver r8169 for my RTL8111/8168B Ethernet card, so I downloaded the r8168 from Realtek website, followed the detailed instructions (blacklisted r8169, changed the file to '.bsh' ...), but still the same problem persisted. So I switched to a wireless connection, and I got the same problem with internet connection dropping randomly. Any ideas? Thanks in advance Output from 'lspci -v' Code: 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) Subsystem: Dell Device 04a7 Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0c <?> 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 0000e000-0000efff Memory behind bridge: f8000000-fa0fffff Prefetchable memory behind bridge: 00000000d0000000-00000000dbffffff Capabilities: [88] Subsystem: Dell Device 04a7 Capabilities: [80] Power Management version 3 Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [a0] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Capabilities: [140] Root Complex Link Kernel driver in use: pcieport Kernel modules: shpchp 00:01.1 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000d000-0000dfff Memory behind bridge: f4000000-f60fffff Prefetchable memory behind bridge: 00000000c0000000-00000000cbffffff Capabilities: [88] Subsystem: Dell Device 04a7 Capabilities: [80] Power Management version 3 Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [a0] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Capabilities: [140] Root Complex Link Kernel driver in use: pcieport Kernel modules: shpchp 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) Subsystem: Dell Device 04a7 Flags: bus master, fast devsel, latency 0, IRQ 52 Memory at f6108000 (64-bit, non-prefetchable) [size=16] Capabilities: [50] Power Management version 3 Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+ Kernel driver in use: mei Kernel modules: mei 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI]) Subsystem: Dell Device 04a7 Flags: bus master, medium devsel, latency 0, IRQ 16 Memory at f6107000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05) Subsystem: Dell Device 04a7 Flags: bus master, fast devsel, latency 0, IRQ 53 Memory at f6100000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [100] Virtual Channel Capabilities: [130] Root Complex Link Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 Memory behind bridge: fa400000-fa4fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Dell Device 04a7 Capabilities: [a0] Power Management version 2 Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=04, subordinate=04, sec-latency=0 I/O behind bridge: 0000c000-0000cfff Prefetchable memory behind bridge: 00000000dc100000-00000000dc1fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Dell Device 04a7 Capabilities: [a0] Power Management version 2 Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=05, subordinate=05, sec-latency=0 I/O behind bridge: 0000b000-0000bfff Memory behind bridge: fa300000-fa3fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Dell Device 04a7 Capabilities: [a0] Power Management version 2 Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=06, subordinate=06, sec-latency=0 I/O behind bridge: 0000a000-0000afff Memory behind bridge: fa200000-fa2fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Dell Device 04a7 Capabilities: [a0] Power Management version 2 Kernel driver in use: pcieport Kernel modules: shpchp 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI]) Subsystem: Dell Device 04a7 Flags: bus master, medium devsel, latency 0, IRQ 23 Memory at f6106000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1f.0 ISA bridge: Intel Corporation P67 Express Chipset Family LPC Controller (rev 05) Subsystem: Dell Device 04a7 Flags: bus master, medium devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0c <?> Kernel modules: iTCO_wdt 00:1f.2 RAID bus controller: Intel Corporation 82801 SATA Controller [RAID mode] (rev 05) Subsystem: Dell Device 04a7 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 42 I/O ports at f070 [size=8] I/O ports at f060 [size=4] I/O ports at f050 [size=8] I/O ports at f040 [size=4] I/O ports at f020 [size=32] Memory at f6105000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [70] Power Management version 3 Capabilities: [a8] SATA HBA v1.0 Capabilities: [b0] PCI Advanced Features Kernel driver in use: ahci 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05) Subsystem: Dell Device 04a7 Flags: medium devsel, IRQ 5 Memory at f6104000 (64-bit, non-prefetchable) [size=256] I/O ports at f000 [size=32] Kernel modules: i2c-i801 01:00.0 VGA compatible controller: NVIDIA Corporation Device 0dc5 (rev a1) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation Device 085b Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at f8000000 (32-bit, non-prefetchable) [size=16M] Memory at d0000000 (64-bit, prefetchable) [size=128M] Memory at d8000000 (64-bit, prefetchable) [size=32M] I/O ports at e000 [size=128] Expansion ROM at fa000000 [disabled] [size=512K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Capabilities: [b4] Vendor Specific Information: Len=14 <?> Capabilities: [100] Virtual Channel Capabilities: [128] Power Budgeting <?> Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?> Kernel driver in use: nouveau Kernel modules: nouveau, nvidiafb 01:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) Subsystem: NVIDIA Corporation Device 085b Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at fa080000 (32-bit, non-prefetchable) [size=16K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 02:00.0 VGA compatible controller: NVIDIA Corporation Device 0dc5 (rev a1) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation Device 085b Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at f4000000 (32-bit, non-prefetchable) [size=32M] Memory at c0000000 (64-bit, prefetchable) [size=128M] Memory at c8000000 (64-bit, prefetchable) [size=64M] I/O ports at d000 [size=128] Expansion ROM at f6000000 [disabled] [size=512K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Capabilities: [b4] Vendor Specific Information: Len=14 <?> Capabilities: [100] Virtual Channel Capabilities: [128] Power Budgeting <?> Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?> Kernel driver in use: nouveau Kernel modules: nouveau, nvidiafb 02:00.1 Audio device: NVIDIA Corporation GF106 High Definition Audio Controller (rev a1) Subsystem: NVIDIA Corporation Device 085b Flags: bus master, fast devsel, latency 0, IRQ 18 Memory at f6080000 (32-bit, non-prefetchable) [size=16K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 03:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 03) (prog-if 30 [XHCI]) Subsystem: Dell Device 04a7 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at fa400000 (64-bit, non-prefetchable) [size=8K] Capabilities: [50] Power Management version 3 Capabilities: [70] MSI: Enable- Count=1/8 Maskable- 64bit+ Capabilities: [90] MSI-X: Enable+ Count=8 Masked- Capabilities: [a0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff Capabilities: [150] Latency Tolerance Reporting Kernel driver in use: xhci_hcd 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) Subsystem: Dell Device 04a7 Flags: bus master, fast devsel, latency 0, IRQ 51 I/O ports at c000 [size=256] Memory at dc104000 (64-bit, prefetchable) [size=4K] Memory at dc100000 (64-bit, prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 01 Capabilities: [b0] MSI-X: Enable- Count=4 Masked- Capabilities: [d0] Vital Product Data Capabilities: [100] Advanced Error Reporting Capabilities: [140] Virtual Channel Capabilities: [160] Device Serial Number 03-00-00-00-68-4c-e0-00 Kernel driver in use: r8168 Kernel modules: r8168 05:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6315 Series Firewire Controller (rev 01) (prog-if 10 [OHCI]) Subsystem: Dell Device 04a7 Flags: bus master, fast devsel, latency 0, IRQ 18 Memory at fa300000 (64-bit, non-prefetchable) [size=2K] I/O ports at b000 [size=256] Capabilities: [50] Power Management version 3 Capabilities: [80] MSI: Enable- Count=1/1 Maskable+ 64bit+ Capabilities: [98] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [130] Device Serial Number 00-10-dc-ff-ff-cf-56-1a Kernel driver in use: firewire_ohci Kernel modules: firewire-ohci 06:00.0 SATA controller: JMicron Technology Corp. JMB362 SATA Controller (rev 10) (prog-if 01 [AHCI 1.0]) Subsystem: Dell Device 04a7 Flags: bus master, fast devsel, latency 0, IRQ 19 I/O ports at a040 [size=8] I/O ports at a030 [size=4] I/O ports at a020 [size=8] I/O ports at a010 [size=4] I/O ports at a000 [size=16] Memory at fa210000 (32-bit, non-prefetchable) [size=512] Capabilities: [8c] Power Management version 3 Capabilities: [50] Express Legacy Endpoint, MSI 00 Kernel driver in use: ahci Note that my wireless card is not showing, I have the Ralink 3390 card (which apparently does not show up on Ubuntu for some reason), however I am able to connect to wireless network and connect to the internet (when it is working)

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• How can I get the Creative Zen Touch to work?

  - by Hello71

  I've tried using gnomad2 (too lazy to configure all the dependencies) and Amarok (segfaulted when I tried to do anything with it). $ lsusb Bus 002 Device 004: ID 041e:4131 Creative Technology, Ltd Zen Touch (mtp) # SNIP OUTPUT # $ lsusb --verbose -s 002:004 Bus 002 Device 004: ID 041e:4131 Creative Technology, Ltd Zen Touch (mtp) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x041e Creative Technology, Ltd idProduct 0x4131 Zen Touch (mtp) bcdDevice 1.00 iManufacturer 1 Creative Technology Ltd iProduct 2 Creative Zen Touch iSerial 3 010125517D039098 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 16 Configuration 1 bmAttributes 0xc0 Self Powered MaxPower 440mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 0 (Defined at Interface level) bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 33 MTP Interface Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 4 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 can't get debug descriptor: Connection timed out Device Status: 0x0000 (Bus Powered)

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• WPA2 authentication fails on Ubuntu 12.04 using Rosewill RNX-N1

  - by user94156

  Decided to reduce the clutter in the house and replace a wired connection with a wireless one on my wife's system using USB network device Rosewill RNX-X1. I can see and connect to unprotected network, but WPA2 authentication repeatedly fails. RNX-X1 works on other systems (including TV); also have 2 of 'em and tried each. Worth noting that I recently switched from Comcast to CenturyLink and so switched routers. The system connected successfully to previous router (Linksys EA4500) using WPA2. Would think it is the router (Actiontec C1000A) but all other devices (TV, iPad, Windows, Blackberry, and Squeezebox) connect ok. Would appreciate some diagnostic guidance and insight (phrased for a newbie!) Tests to date: sudo lshw -class network *-network description: Ethernet interface product: RTL8111/8168B PCI Express Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: eth0 version: 01 serial: 00:e0:4d:30:40:a1 size: 10Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=N/A latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:47 ioport:ac00(size=256) memory:fdcff000-fdcfffff memory:fdb00000-fdb1ffff *-network description: Wireless interface physical id: 1 bus info: usb@1:2 logical name: wlan1 serial: 00:02:6f:bd:30:a0 capabilities: ethernet physical wireless configuration: broadcast=yes driver=rt2800usb driverversion=3.2.0-31-generic firmware=0.29 link=no multicast=yes wireless=IEEE 802.11bgn sudo lspci -v 00:00.0 RAM memory: NVIDIA Corporation MCP67 Memory Controller (rev a2) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0 Capabilities: [44] HyperTransport: Slave or Primary Interface Capabilities: [dc] HyperTransport: MSI Mapping Enable+ Fixed- 00:01.0 ISA bridge: NVIDIA Corporation MCP67 ISA Bridge (rev a2) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0 00:01.1 SMBus: NVIDIA Corporation MCP67 SMBus (rev a2) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: 66MHz, fast devsel, IRQ 11 I/O ports at fc00 [size=64] I/O ports at 1c00 [size=64] I/O ports at 1c40 [size=64] Capabilities: [44] Power Management version 2 Kernel driver in use: nForce2_smbus Kernel modules: i2c-nforce2 00:01.2 RAM memory: NVIDIA Corporation MCP67 Memory Controller (rev a2) Flags: 66MHz, fast devsel 00:02.0 USB controller: NVIDIA Corporation MCP67 OHCI USB 1.1 Controller (rev a2) (prog-if 10 [OHCI]) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23 Memory at fe02f000 (32-bit, non-prefetchable) [size=4K] Capabilities: [44] Power Management version 2 Kernel driver in use: ohci_hcd 00:02.1 USB controller: NVIDIA Corporation MCP67 EHCI USB 2.0 Controller (rev a2) (prog-if 20 [EHCI]) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22 Memory at fe02e000 (32-bit, non-prefetchable) [size=256] Capabilities: [44] Debug port: BAR=1 offset=0098 Capabilities: [80] Power Management version 2 Kernel driver in use: ehci_hcd 00:04.0 USB controller: NVIDIA Corporation MCP67 OHCI USB 1.1 Controller (rev a2) (prog-if 10 [OHCI]) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21 Memory at fe02d000 (32-bit, non-prefetchable) [size=4K] Capabilities: [44] Power Management version 2 Kernel driver in use: ohci_hcd 00:04.1 USB controller: NVIDIA Corporation MCP67 EHCI USB 2.0 Controller (rev a2) (prog-if 20 [EHCI]) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20 Memory at fe02c000 (32-bit, non-prefetchable) [size=256] Capabilities: [44] Debug port: BAR=1 offset=0098 Capabilities: [80] Power Management version 2 Kernel driver in use: ehci_hcd 00:06.0 IDE interface: NVIDIA Corporation MCP67 IDE Controller (rev a1) (prog-if 8a [Master SecP PriP]) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0 [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8] [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1] [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8] [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1] I/O ports at f000 [size=16] Capabilities: [44] Power Management version 2 Kernel driver in use: pata_amd Kernel modules: pata_amd 00:07.0 Audio device: NVIDIA Corporation MCP67 High Definition Audio (rev a1) Subsystem: Biostar Microtech Int'l Corp Device 820c Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22 Memory at fe024000 (32-bit, non-prefetchable) [size=16K] Capabilities: [44] Power Management version 2 Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+ Capabilities: [6c] HyperTransport: MSI Mapping Enable- Fixed+ Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 00:08.0 PCI bridge: NVIDIA Corporation MCP67 PCI Bridge (rev a2) (prog-if 01 [Subtractive decode]) Flags: bus master, 66MHz, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=32 I/O behind bridge: 0000c000-0000cfff Memory behind bridge: fdf00000-fdffffff Prefetchable memory behind bridge: fd000000-fd0fffff Capabilities: [b8] Subsystem: NVIDIA Corporation Device cb84 Capabilities: [8c] HyperTransport: MSI Mapping Enable- Fixed- 00:09.0 IDE interface: NVIDIA Corporation MCP67 AHCI Controller (rev a2) (prog-if 85 [Master SecO PriO]) Subsystem: Biostar Microtech Int'l Corp Device 5407 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23 I/O ports at 09f0 [size=8] I/O ports at 0bf0 [size=4] I/O ports at 0970 [size=8] I/O ports at 0b70 [size=4] I/O ports at dc00 [size=16] Memory at fe02a000 (32-bit, non-prefetchable) [size=8K] Capabilities: [44] Power Management version 2 Capabilities: [8c] SATA HBA v1.0 Capabilities: [b0] MSI: Enable- Count=1/8 Maskable- 64bit+ Capabilities: [cc] HyperTransport: MSI Mapping Enable- Fixed+ Kernel driver in use: ahci 00:0b.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000b000-0000bfff Memory behind bridge: fde00000-fdefffff Prefetchable memory behind bridge: 00000000fdd00000-00000000fddfffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:0c.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 I/O behind bridge: 0000a000-0000afff Memory behind bridge: fdc00000-fdcfffff Prefetchable memory behind bridge: 00000000fdb00000-00000000fdbfffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:0d.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=04, subordinate=04, sec-latency=0 I/O behind bridge: 00009000-00009fff Memory behind bridge: fda00000-fdafffff Prefetchable memory behind bridge: 00000000fd900000-00000000fd9fffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:0e.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=05, subordinate=05, sec-latency=0 I/O behind bridge: 00008000-00008fff Memory behind bridge: fd800000-fd8fffff Prefetchable memory behind bridge: 00000000fd700000-00000000fd7fffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:0f.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=06, subordinate=06, sec-latency=0 I/O behind bridge: 00007000-00007fff Memory behind bridge: fd600000-fd6fffff Prefetchable memory behind bridge: 00000000fd500000-00000000fd5fffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:10.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=07, subordinate=07, sec-latency=0 I/O behind bridge: 00006000-00006fff Memory behind bridge: fd400000-fd4fffff Prefetchable memory behind bridge: 00000000fd300000-00000000fd3fffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:11.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=08, subordinate=08, sec-latency=0 I/O behind bridge: 00005000-00005fff Memory behind bridge: fd200000-fd2fffff Prefetchable memory behind bridge: 00000000fd100000-00000000fd1fffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:12.0 VGA compatible controller: NVIDIA Corporation C68 [GeForce 7050 PV / nForce 630a] (rev a2) (prog-if 00 [VGA controller]) Subsystem: Biostar Microtech Int'l Corp Device 1406 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21 Memory at fb000000 (32-bit, non-prefetchable) [size=16M] Memory at e0000000 (64-bit, prefetchable) [size=256M] Memory at fc000000 (64-bit, non-prefetchable) [size=16M] [virtual] Expansion ROM at 80000000 [disabled] [size=128K] Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Kernel driver in use: nvidia Kernel modules: nvidia_current, nouveau, nvidiafb 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration Flags: fast devsel Capabilities: [80] HyperTransport: Host or Secondary Interface 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map Flags: fast devsel 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller Flags: fast devsel 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control Flags: fast devsel Capabilities: [f0] Secure device <?> Kernel driver in use: k8temp Kernel modules: k8temp 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01) Subsystem: Biostar Microtech Int'l Corp Device 2305 Flags: bus master, fast devsel, latency 0, IRQ 47 I/O ports at ac00 [size=256] Memory at fdcff000 (64-bit, non-prefetchable) [size=4K] [virtual] Expansion ROM at fdb00000 [disabled] [size=128K] Capabilities: [40] Power Management version 2 Capabilities: [48] Vital Product Data Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] Express Endpoint, MSI 00 Capabilities: [84] Vendor Specific Information: Len=4c <?> Capabilities: [100] Advanced Error Reporting Capabilities: [12c] Virtual Channel Capabilities: [148] Device Serial Number 32-00-00-00-10-ec-81-68 Capabilities: [154] Power Budgeting <?> Kernel driver in use: r8169 Kernel modules: r8169 sudo rfkill list all 2: phy2: Wireless LAN Soft blocked: no Hard blocked: no

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• Logging library for (c++) games

  - by Klaim

  I know a lot of logging libraries but didn't test a lot of them. (GoogleLog, Pantheios, the coming boost::log library...) In games, especially in remote multiplayer and multithreaded games, logging is vital to debugging, even if you remove all logs in the end. Let's say I'm making a PC game (not console) that needs logs (multiplayer and multithreaded and/or multiprocess) and I have good reasons for looking for a library for logging (like, I don't have time or I'm not confident in my ability to write one correctly for my case). Assuming that I need : performance ease of use (allow streaming or formating or something like that) reliable (don't leak or crash!) cross-platform (at least Windows, MacOSX, Linux/Ubuntu) Wich logging library would you recommand? Currently, I think that boost::log is the most flexible one (you can even log to remotely!), but have not good performance update: is for high performance, but isn't released yet. Pantheios is often cited but I don't have comparison points on performance and usage. I've used my own lib for a long time but I know it don't manage multithreading so it's a big problem, even if it's fast enough. Google Log seems interesting, I just need to test it but if you already have compared those libs and more, your advice might be of good use. Games are often performance demanding while complex to debug so it would be good to know logging libraries that, in our specific case, have clear advantages.

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• How To Attach Visual Studio 2010 To IIS Process Running On Windows 7

  - by Gopinath

  Debugging ASP.NET application hosted on IIS 7 running of Windows 7 using Visual Studio 2010 is a bit different from debugging applications hosted on IIS running on Windows XP. The key differences are Visual Studio 2010 demands for administrator mode and IIS runs under the process name w3wp.exe instead of aspnet_wp.exe. Here are the detailed steps to attach Visual Studio 2010 debugger to IIS 7 on Windows 7. 1. Launch Visual Studio 2010 in Administrator mode(right click on Visual Studio Icon and choose the option Run as Administrator) 2. Open source code the site you want to debug 3. Go to Tools -> Attach to Process.; Opens up Attach to Process.  4.  In Attach to Process dialog box, check the option Show process in all sessions. 5. Search for the process w3wp.exe, and click on Attach button. 6. Accept the warning messages. That’s is you are done. Visual Studio is now attached with IIS for debugging. Happy coding. This article titled,How To Attach Visual Studio 2010 To IIS Process Running On Windows 7, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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• High load (and high temp) with idle processes

  - by Nanne

  I've got a semi-old laptop (toshiba satellite a110-228), that's appointed 'laptop for the kids' by my sister. I've installed ubuntu netbook (10.10) on it because of the lack-of memory and it seems to work fine, accept from some heat-issues. These where never a problem under windows. It looks like I've got something similar to this problem: Load is generally 1 or higher, sometimes its stuck at 0.80, but its way to high. Top/htop only show a couple of percentage CPU use (which isn't too shocking, as i'm not doing anything). At this point all the software is stock, and i'd like to keep it that way because its supposed to be the easy-to-maintain kids computer. Now I'd like to find out: What could be the cause of the high load? Could it be as this thread implies, some driver, are there other options to check? How could I see what is really keeping the system hot and bothered? How to check what runs, etc etc? I'd like to pinpoint the culprint. further steps to take for debugging? The big bad internet leads me to believe that it might be the graphics drivers. The laptop has an Intel 945M chipset, but that doesn't seem to be one of the problem childs in this manner (I read a lot abotu ATI drivers that need special isntall). I'd not only welcome hints to directly solve this (duh) but also help in starting to debug what is going on. I am really hesitant in installing an older kernel, as I want it to be stock, and easy upgradeable (because I don't live near it, it should run without me ;) ) As an afterthought: to keep the whole thing cooler, can I 'amp up' the fancontrol? Its only going "airplane" mode when the computer is 95 Celcius, which is a tad late for my taste. Top: powertop:

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• Why not to use StackTrace to find what method called you

  - by Alex.Davies

  Our obfuscator, SmartAssembly, does some pretty crazy reflection. It's an obfuscator, it's sort of its job to do things in the most awkward way possible. But sometimes, you can go too far. One such time is this little gem from the strings encoding feature: StackTrace stackTrace = new StackTrace(); StackFrame frame = stackTrace.GetFrame(1); Type ownerType = frame.GetMethod().DeclaringType; It's designed to find the type where the calling method is defined. A user found that strings encoding occasionally broke on x64 systems. Very strange. After some debugging (thank god for Reflector Pro, it would be impossible to debug processed assemblies without it) I found that the ownerType I got back was wrong. The reason is that the x64 JIT does tail call optimisation. This saves space on the stack, and speeds things up, by throwing away a method's stack frame if the last thing that it calls is the only thing returned. When this happens, the call to StackTrace faithfully tells you that the calling method is the one that called the one we really wanted. So using StackTrace isn't safe for anything other than debugging, and it will make your code fail in unpredictable ways. Don't use it!

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• Disk space suddenly 100% used?

  - by dannymcc

  I'm trying to identify why, suddenly, 100% of our disk space is in use. I have already rebooted but the issue persists. Here are the outputs of some commands that are showing some strange (for me) results: danny@hydrogen:~$ df -h Filesystem Size Used Avail Use% Mounted on /dev/cciss/c0d0p1 130G 122G 949M 100% / none 1.9G 196K 1.9G 1% /dev none 2.0G 0 2.0G 0% /dev/shm none 2.0G 40K 2.0G 1% /var/run none 2.0G 0 2.0G 0% /var/lock none 2.0G 0 2.0G 0% /lib/init/rw danny@hydrogen:/$ sudo du -chs / du: cannot access `/proc/1662/task/1662/fd/4': No such file or directory du: cannot access `/proc/1662/task/1662/fdinfo/4': No such file or directory du: cannot access `/proc/1662/fd/4': No such file or directory du: cannot access `/proc/1662/fdinfo/4': No such file or directory danny@hydrogen:/$ df Filesystem 1K-blocks Used Available Use% Mounted on /dev/cciss/c0d0p1 135342296 128144108 323104 100% / none 1991336 196 1991140 1% /dev none 1995788 0 1995788 0% /dev/shm none 1995788 40 1995748 1% /var/run none 1995788 0 1995788 0% /var/lock none 1995788 0 1995788 0% /lib/init/rw danny@hydrogen:/$ mount /dev/cciss/c0d0p1 on / type ext4 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) none on /dev type devtmpfs (rw,mode=0755) none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) none on /dev/shm type tmpfs (rw,nosuid,nodev) none on /var/run type tmpfs (rw,nosuid,mode=0755) none on /var/lock type tmpfs (rw,noexec,nosuid,nodev) none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755) danny@hydrogen:/$ sudo du -h --max-depth=1 634M ./premvet_sync 5.6M ./etc 4.0K ./opt 16K ./lost+found 7.4M ./bin 623M ./lib 196K ./dev 0 ./sys 4.0K ./srv 4.0K ./cdrom 8.0K ./media 52K ./tmp ... it hangs for ages here..... The server is running Ubuntu 10.04.4 LTS. System load: 2.85 Temperature: 8 C Usage of /: 94.7% of 129.07GB Processes: 132 Memory usage: 39% Users logged in: 0 Swap usage: 0% IP address for eth0: 192.168.1.124 => / is using 94.7% of 129.07GB I'm struggling to comprehend why this is happening! Any pointers would be appreciated.

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• Lexmark X5650 doesn't print (scanning works)

  - by unor

  I want to use a Lexmark X5650 under Ubuntu. When I connect it via USB, Ubuntu recognizes the device, but can't find a driver. On the Lexmark support site, you can select "Unix/Linux" and then "Ubuntu 9.04", "9.10", "10.04" and "10.10". However, all versions lead to the same driver: lexmark-08z-series-driver-1.0-1.i386.deb.sh.tar.gz (Last updated: 2012-04-13). While installing this driver, the installer asks me to connect the device. As soon as I connect it via USB, Ubuntu now adds the printer automatically. So after the installation completed, I had 2 printers set up. But I can't print anything (I tried it with both printer configurations). Scanning works fine, though. So I guess the driver installation and the device connection are successful. When I try to print something, the print job is listed in the printing queue, but nothing happens. After some time, I get an error message which starts a debug wizard, but in the end it reads something like "Sorry, couldn't find the reason". I had several different error messages (unfortunately, I didn't record them), one was approximately like "printer cannot communicate with computer". Another said that my color ink was low (which is true, but black is full). Another said there was an input/output error. I tried it with Ubuntu 11.10. Because I read that some people had success with 10.04., I installed it in QEMU and installed the driver there, too. Same problem, though. I'd like to upgrade to 12.04, if it should work there for any reason, but I read that for some people this printer stopped working in 12.04 :/ So, it would be best if the printer would work in 12.04. If that's not possible, I'd be fine with starting a QEMU virtual machine with any GNU/Linux distribution that works with my printer.

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• Log php errors in ubuntu

  - by resting

  I followed the setup here: Where is the PHP error log When I look into /var/log/php_errors.log, I could see some PHP errors. PHP Warning: file_get_contents(/var/www/...): failed to open stream: No such file or directory in ... But what I'm trying to see is the error when I removed a semicolon from a statement. That error above has no relation to file from where I removed the semicolon so we can just ignore that. When I access the page with the removed semicolon, I get The website encountered an error while retrieving https://myapp/download/decode/testfile. It may be down for maintenance or configured incorrectly. HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request. But no logs in /var/log/php_errors.log. How do I see the error that usually says which line and which file the process failed? The real reason for trying to see the error is because I have a very huge loop, that throws the HTTP 500 error and I can't see the exact error. I'm just simulation with a removed semicolon to test things out. Other settings: error_reporting = E_ALL & ~E_DEPRECATED display_errors = On On Ubuntu 10.04.4 LTS Update Ok, I managed to get the error message to display. Parse error: syntax error, unexpected T_IF in ... However, it's still not logged. It wasn't displaying previously because Cakephp's debug level was at 0. Setting it to 2 displays the message, but no logs.

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• Enabling XML-documentation for code contracts

  - by DigiMortal

  One nice feature that code contracts offer is updating of code documentation. If you are using source code documenting features of Visual Studio then code contracts may automate some tasks you otherwise have to implement manually. In this posting I will show you some XML documentation files with documented contracts. I will also explain how this feature works. Enabling XML-documentation in project settings As a first thing let’s enable generating of code documentation under project settings. Open project properties, move to Build page and make check to checkbox called “XML documentation file”. Save project settings and rebuild project. When project is built go to bin/Debug folder and open the XML-file. Here is my XML. <?xml version="1.0"?> <doc>     <assembly>         <name>Eneta.Examples.CodeContracts.Testable</name>     </assembly>     <members>         <member name="T:Eneta.Examples.CodeContracts.Testable.Randomizer">             <summary>             Class for generating random integers in user specified range.             </summary>         </member>         <member name="M:Eneta.Examples.CodeContracts.Testable.Randomizer.#ctor(Eneta.Examples.CodeContracts.Testable.IRandomGenerator)">             <summary>             Constructor of Randomizer. Initializes Randomizer class.             </summary>             <param name="generator">Instance of random number generator.</param>         </member>         <member name="M:Eneta.Examples.CodeContracts.Testable.Randomizer.GetRandomFromRangeContracted(System.Int32,System.Int32)">             <summary>             Returns random integer in given range.             </summary>             <param name="min">Minimum value of random integer.</param>             <param name="max">Maximum value of random integer.</param>         </member>     </members> </doc> You can see nothing about code contracts here. Enabling code contracts documentation Code contracts have their own settings and conditions for documentation. Open project properties and move to Code Contracts tab. From “Contract Reference Assembly” dropdown check Build and make check to checkbox “Emit contracts into XML doc file”. And again – save project setting, build the project and move to bin/Debug folder. Now you can see that there are two files for XML-documentation: <assembly name>.XML <assembly name>.old.XML First files is documentation with contracts, second file is original documentation without contracts. Let’s see now what is inside our new XML-documentation file. <?xml version="1.0"?> <doc>   <assembly>     <name>Eneta.Examples.CodeContracts.Testable</name>   </assembly>   <members>     <member name="T:Eneta.Examples.CodeContracts.Testable.Randomizer">       <summary>             Class for generating random integers in user specified range.             </summary>     </member>     <member name="M:Eneta.Examples.CodeContracts.Testable.Randomizer.#ctor(Eneta.Examples.CodeContracts.Testable.IRandomGenerator)">       <summary>             Constructor of Randomizer. Initializes Randomizer class.             </summary>       <param name="generator">Instance of random number generator.</param>     </member>     <member name="M:Eneta.Examples.CodeContracts.Testable.Randomizer.GetRandomFromRangeContracted(System.Int32,System.Int32)">       <summary>             Returns random integer in given range.             </summary>       <param name="min">Minimum value of random integer.</param>       <param name="max">Maximum value of random integer.</param>       <requires description="Min must be less than max" exception="T:System.ArgumentOutOfRangeException">                 min &lt; max</requires>       <exception cref="T:System.ArgumentOutOfRangeException">                 min &gt;= max</exception>       <ensures description="Return value is out of range">                 Contract.Result&lt;int&gt;() &gt;= min &amp;&amp;                 Contract.Result&lt;int&gt;() &lt;= max</ensures>     </member>   </members> </doc> As you can see then code contracts are pretty well documented. Messages that I provided with code contracts are also available in documentation. If I wrote very good and informative messages then these messages are very useful also in contracts documentation. Code contracts and Sandcastle Sandcastle knows nothing about code contracts by default. There is separate package of file for Sandcastle that is provided you by code contracts installation. You can read from code contracts manual: “Sandcastle (http://www.codeplex.com/Sandcastle) is a freely available tool that generates help les and web sites describing your APIs, based on the XML doc comments in your source code. The CodeContracts install contains a set of les that can be copied over a Sandcastle installation to take advantage of the additional contract information. The produced documentation adds a contract section to methods with declared requires and/or ensures. In order for Sandcastle to produce Contract sections, you need to patch a number of files in its installation. Please refer to the Sandcastle Readme.txt found under Start Menu/CodeContracts/Sandcastle for instructions. A future release of Sandcastle will hopefully support contract sections without the need for this patching step.” Integrating code contracts documentation to Sandcastle will be one of my next postings about code contracts. Conclusion if you are using code documentation then documentation about code contracts can be added to documentation very easily. All you have to do is to enable XML-documentation for contracts and build your project. Later you can use Sandcastle files provided by code contracts installer to integrate contracts documentation to your output documentation package.

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• Tips for debugging Samba performance?

  - by j-g-faustus

  Samba gives me 24 MB/s read and 44 MB/s write, while ftp gives 97 and 112 MB/s under the same circumstances. The documentation says that Generally, you should find that Samba performs similarly to ftp at raw transfer speed. In my case it clearly doesn't. Where can I find tips on how to debug Samba performance? Or alternatively tips for replacing Samba with something else? (I can't use ftp, unfortunately, as I need something that can be used with rsync/rsnapshot.) More details: Both computers are running Ubuntu 10.10 (using Samba because I have a Mac as well) The Samba share is on a local home network, mounted as $ mount ... //server.local/share/ on /mnt/share type cifs (rw,mand) Samba performance was tested by copying (cp) a single file of ~4GB to and from the share, using time for timing and calculating transfer speed by hand. ftp performance are the numbers from the ftp client for get/put of the same file. iperf gives network speed ~900 Mbits/s bonnie++ gives disk speeds 200 MB/s on both sides for block reads as well as block writes Tried changing the parameters suggested in the performance tuning HOWTO (read/write raw, read size, socket options), most of them made little to no difference. (The one that made a difference caused write speed to drop 50%.)

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• A Technical Perspective On Rapid Planning

  - by Robert Story

  Upcoming WebcastTitle: Strategic Network Optimization - One Solution for Many Problems!Date: April 14, 2010 Time: 11:00 am EDT, 9:00 am MDT, 8:00 am PDT, 16:00 GMT Product Family: Value Chain PlanningSummary This one-hour session is recommended for System Administrators, Database Administrators, and Technical Users seeking a general overview of Rapid Planning, installation issues, and debug information. This webcast is intended to provide users with insight into known issues, and an overview of the debugging possibilities for Rapid Planning. Topics will include: Benefits of using simulation planning Installing Oracle Rapid planning, points to be aware of Relevant tables Rapid planning log files Information needed by supportA short, live demonstration (only if applicable) and question and answer period will be included. Click here to register for this session....... ....... ....... ....... ....... ....... .......The above webcast is a service of the E-Business Suite Communities in My Oracle Support.For more information on other webcasts, please reference the Oracle Advisor Webcast Schedule.Click here to visit the E-Business Communities in My Oracle Support Note that all links require access to My Oracle Support.

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• GnoMenu integration in docky.

  - by Lyon Apostol

  Posting the error: Running docky --debug < ...some other stuff... > [Info 10:27:52.535] [Helper] Starting GnoMenu.py [Info 10:27:52.560] [HelperService] Helper added: /usr/share/dockmanager/scripts/GnoMenu.py [Info 10:27:52.757] [Helper] GnoMenu.py :: No module named dockmanager.dockmanager [Info 10:27:52.758] [Helper] GnoMenu.py :: gconf backend [Info 10:27:52.758] [Helper] GnoMenu.py :: 239 [Error 10:27:52.759] [Helper] GnoMenu.py :: Traceback (most recent call last): [Error 10:27:52.759] [Helper] GnoMenu.py :: File "/usr/share/dockmanager/scripts/GnoMenu.py", line 120, in < module > [Error 10:27:52.759] [Helper] GnoMenu.py :: class DockyGnoMenuItem(DockManagerItem): [Error 10:27:52.759] [Helper] GnoMenu.py :: NameError: name 'DockManagerItem' is not defined [Info 10:27:52.874] [Helper] GnoMenu.py has exited (Code 1). After installing dockmanager Now this is what happens: [Info 11:34:36.166] [Helper] GnoMenu.py :: gconf backend [Info 11:34:36.166] [Helper] GnoMenu.py :: 136 [Info 11:34:36.166] [Helper] GnoMenu.py :: DockManagerSink(): System.NotSupportedException: Cannot send null variant [Info 11:34:36.210] [Helper] GnoMenu.py has exited (Code 0). I tried to click the icon at the dock: gconf backend 380 DockManagerSink(): System.NotSupportedException: Cannot send null variant gconf backend 380 DockManagerSink(): System.NotSupportedException: Cannot send null variant How can I fix this? Thanks for your prompt answer!

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• Performance Overhead of Encrypted /home

  - by SabreWolfy

  I have a netbook with Windows on the second partition and Xubuntu (/ and /home) on the third partition. I selected to encrypt my home folder during installation. The performance of the netbook is adequate for the small machine that it is, but I'm looking to improve performance. I could not find much information about the overhead (CPU or drive) associated with home partition encryption. I ran the following, writing to my home partition as well as the the mounted Windows partition: dd if=/dev/zero of=~/dummy bs=512 count=10240 dd if=/dev/zero of=/media/Windows/dummy bs=512 count=10240 The first returned 2.4MB/s and the second returned 2.5MB/s. Can I therefore deduce that there is very little overhead to home folder encryption? I'm not sure if the different filesystems will make any difference (/ and /home are ext3). Update 1 I don't know why I didn't use /tmp instead of the mounted Windows folder. Only /home is encrypted, so /tmp is unencrypted ext3. The results of the dd as above are astounding: ~: 2.4 MB/s /tmp: 42.6 MB/s Comments please? The reason I am asking this is that disk access on the netbook is noticeably slow. Update 2 I timed each of the dd operations with time: ~: real 0m2.217s user 0m0.028s sys 0m2.176s /tmp: real 0m0.152s user 0m0.012s sys 0m0.136s See also: discussion on UbuntuForums.org and bug report Edit: Output of mount: /dev/sda3 on / type ext3 (rw,noatime,errors=remount-ro,user_xattr,commit=600) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /sys type sysfs (rw,noexec,nosuid,nodev) fusectl on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) none on /dev type devtmpfs (rw,mode=0755) none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) none on /dev/shm type tmpfs (rw,nosuid,nodev) none on /var/run type tmpfs (rw,nosuid,mode=0755) none on /var/lock type tmpfs (rw,noexec,nosuid,nodev) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) gvfs-fuse-daemon on /home/USER/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=USER) `

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• Compiling NETGEAR WNR2000v3 firmware under 12.04.1 LTS

  - by Madmanguruman

  I'm trying to compile the GPL NETGEAR firmware for the WNR2000v3 router using Ubuntu 12.04.1 LTS. I've downloaded and extracted the source, installed everything I think I need, yet there are two build dependencies that I cannot resolve: > make menuconfig .... Build dependency: Please install ncurses. (Missing libncurses.so or ncurses.h) Build dependency: Please install zlib. (Missing libz.so or zlib.h) I've tried apt-getting all of the following packages: libncurses5 libncurses5:i386 libncurses5-dev zlib1g zlib1g-dev zlib1g-dbg The missing libs seem 'real': the target .so files aren't in /usr/lib, although the .h files are in /usr/include. EDIT: some Googling told me of broken or missing symlinks. I found the following: /lib/i386-linux-gnu/libncurses.so.5 -> libncurses.so.5.9 /lib/i386-linux-gnu/libncurses.so.5.9 /lib/i386-linux-gnu/libncursesw.so.5 -> libncursesw.so.5.9 /lib/i386-linux-gnu/libncursesw.so.5.9 /lib/i386-linux-gnu/libz.so.1 -> libz.so.1.2.3.4 /lib/i386-linux-gnu/libz.so.1.2.3.4 so I tried to symlink these to /usr/lib: /usr/lib/libncurses.so -> /lib/i386-linux-gnu/libncurses.so.5 /usr/lib/libz.so -> /lib/i386-linux-gnu/libz.so.1 but the project still complains about missing libncurses and zlib. EDIT: I was able to get the dependencies to work under 8.04. Need to cross-reference things now. Does anyone have some tips on how to debug this sort of issue?

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• WPA2 authentication fails using USB network devices (Linksys and Rosewill)

  - by Greg Youtz

  Decided to reduce the clutter in the house and replace a wired connection with a wireless one on my wife's system using USB network device Rosewill RNX-X1. I can see and connect to unprotected network, but WPA2 authentication repeatedly fails. Tried the same with a Linksys USB network adapter. Both failed to authenticate. Worth noting that I recently switched from Comcast to CenturyLink and so switched routers. The system connected successfully to previous router (Linksys EA4500) using WPA2. Would think it is the router (Actiontec C1000A) but all other devices (TV, iPad, Windows, Blackberry, and Squeezebox) connect ok. Would appreciate some diagnostic guidance and insight (phrased for a newbie!) Tests to date: sudo lshw -class network *-network description: Ethernet interface product: RTL8111/8168B PCI Express Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: eth0 version: 01 serial: 00:e0:4d:30:40:a1 size: 10Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=N/A latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:47 ioport:ac00(size=256) memory:fdcff000-fdcfffff memory:fdb00000-fdb1ffff *-network description: Wireless interface physical id: 1 bus info: usb@1:2 logical name: wlan1 serial: 00:02:6f:bd:30:a0 capabilities: ethernet physical wireless configuration: broadcast=yes driver=rt2800usb driverversion=3.2.0-31-generic firmware=0.29 link=no multicast=yes wireless=IEEE 802.11bgn sudo lspci -v 00:00.0 RAM memory: NVIDIA Corporation MCP67 Memory Controller (rev a2) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0 Capabilities: [44] HyperTransport: Slave or Primary Interface Capabilities: [dc] HyperTransport: MSI Mapping Enable+ Fixed- 00:01.0 ISA bridge: NVIDIA Corporation MCP67 ISA Bridge (rev a2) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0 00:01.1 SMBus: NVIDIA Corporation MCP67 SMBus (rev a2) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: 66MHz, fast devsel, IRQ 11 I/O ports at fc00 [size=64] I/O ports at 1c00 [size=64] I/O ports at 1c40 [size=64] Capabilities: [44] Power Management version 2 Kernel driver in use: nForce2_smbus Kernel modules: i2c-nforce2 00:01.2 RAM memory: NVIDIA Corporation MCP67 Memory Controller (rev a2) Flags: 66MHz, fast devsel 00:02.0 USB controller: NVIDIA Corporation MCP67 OHCI USB 1.1 Controller (rev a2) (prog-if 10 [OHCI]) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23 Memory at fe02f000 (32-bit, non-prefetchable) [size=4K] Capabilities: [44] Power Management version 2 Kernel driver in use: ohci_hcd 00:02.1 USB controller: NVIDIA Corporation MCP67 EHCI USB 2.0 Controller (rev a2) (prog-if 20 [EHCI]) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22 Memory at fe02e000 (32-bit, non-prefetchable) [size=256] Capabilities: [44] Debug port: BAR=1 offset=0098 Capabilities: [80] Power Management version 2 Kernel driver in use: ehci_hcd 00:04.0 USB controller: NVIDIA Corporation MCP67 OHCI USB 1.1 Controller (rev a2) (prog-if 10 [OHCI]) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21 Memory at fe02d000 (32-bit, non-prefetchable) [size=4K] Capabilities: [44] Power Management version 2 Kernel driver in use: ohci_hcd 00:04.1 USB controller: NVIDIA Corporation MCP67 EHCI USB 2.0 Controller (rev a2) (prog-if 20 [EHCI]) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20 Memory at fe02c000 (32-bit, non-prefetchable) [size=256] Capabilities: [44] Debug port: BAR=1 offset=0098 Capabilities: [80] Power Management version 2 Kernel driver in use: ehci_hcd 00:06.0 IDE interface: NVIDIA Corporation MCP67 IDE Controller (rev a1) (prog-if 8a [Master SecP PriP]) Subsystem: Biostar Microtech Int'l Corp Device 3409 Flags: bus master, 66MHz, fast devsel, latency 0 [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8] [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1] [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8] [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1] I/O ports at f000 [size=16] Capabilities: [44] Power Management version 2 Kernel driver in use: pata_amd Kernel modules: pata_amd 00:07.0 Audio device: NVIDIA Corporation MCP67 High Definition Audio (rev a1) Subsystem: Biostar Microtech Int'l Corp Device 820c Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22 Memory at fe024000 (32-bit, non-prefetchable) [size=16K] Capabilities: [44] Power Management version 2 Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+ Capabilities: [6c] HyperTransport: MSI Mapping Enable- Fixed+ Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 00:08.0 PCI bridge: NVIDIA Corporation MCP67 PCI Bridge (rev a2) (prog-if 01 [Subtractive decode]) Flags: bus master, 66MHz, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=32 I/O behind bridge: 0000c000-0000cfff Memory behind bridge: fdf00000-fdffffff Prefetchable memory behind bridge: fd000000-fd0fffff Capabilities: [b8] Subsystem: NVIDIA Corporation Device cb84 Capabilities: [8c] HyperTransport: MSI Mapping Enable- Fixed- 00:09.0 IDE interface: NVIDIA Corporation MCP67 AHCI Controller (rev a2) (prog-if 85 [Master SecO PriO]) Subsystem: Biostar Microtech Int'l Corp Device 5407 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23 I/O ports at 09f0 [size=8] I/O ports at 0bf0 [size=4] I/O ports at 0970 [size=8] I/O ports at 0b70 [size=4] I/O ports at dc00 [size=16] Memory at fe02a000 (32-bit, non-prefetchable) [size=8K] Capabilities: [44] Power Management version 2 Capabilities: [8c] SATA HBA v1.0 Capabilities: [b0] MSI: Enable- Count=1/8 Maskable- 64bit+ Capabilities: [cc] HyperTransport: MSI Mapping Enable- Fixed+ Kernel driver in use: ahci 00:0b.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000b000-0000bfff Memory behind bridge: fde00000-fdefffff Prefetchable memory behind bridge: 00000000fdd00000-00000000fddfffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:0c.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 I/O behind bridge: 0000a000-0000afff Memory behind bridge: fdc00000-fdcfffff Prefetchable memory behind bridge: 00000000fdb00000-00000000fdbfffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:0d.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=04, subordinate=04, sec-latency=0 I/O behind bridge: 00009000-00009fff Memory behind bridge: fda00000-fdafffff Prefetchable memory behind bridge: 00000000fd900000-00000000fd9fffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:0e.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=05, subordinate=05, sec-latency=0 I/O behind bridge: 00008000-00008fff Memory behind bridge: fd800000-fd8fffff Prefetchable memory behind bridge: 00000000fd700000-00000000fd7fffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:0f.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=06, subordinate=06, sec-latency=0 I/O behind bridge: 00007000-00007fff Memory behind bridge: fd600000-fd6fffff Prefetchable memory behind bridge: 00000000fd500000-00000000fd5fffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:10.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=07, subordinate=07, sec-latency=0 I/O behind bridge: 00006000-00006fff Memory behind bridge: fd400000-fd4fffff Prefetchable memory behind bridge: 00000000fd300000-00000000fd3fffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:11.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=08, subordinate=08, sec-latency=0 I/O behind bridge: 00005000-00005fff Memory behind bridge: fd200000-fd2fffff Prefetchable memory behind bridge: 00000000fd100000-00000000fd1fffff Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000 Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Capabilities: [80] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Kernel driver in use: pcieport Kernel modules: shpchp 00:12.0 VGA compatible controller: NVIDIA Corporation C68 [GeForce 7050 PV / nForce 630a] (rev a2) (prog-if 00 [VGA controller]) Subsystem: Biostar Microtech Int'l Corp Device 1406 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21 Memory at fb000000 (32-bit, non-prefetchable) [size=16M] Memory at e0000000 (64-bit, prefetchable) [size=256M] Memory at fc000000 (64-bit, non-prefetchable) [size=16M] [virtual] Expansion ROM at 80000000 [disabled] [size=128K] Capabilities: [48] Power Management version 2 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Kernel driver in use: nvidia Kernel modules: nvidia_current, nouveau, nvidiafb 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration Flags: fast devsel Capabilities: [80] HyperTransport: Host or Secondary Interface 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map Flags: fast devsel 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller Flags: fast devsel 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control Flags: fast devsel Capabilities: [f0] Secure device <?> Kernel driver in use: k8temp Kernel modules: k8temp 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01) Subsystem: Biostar Microtech Int'l Corp Device 2305 Flags: bus master, fast devsel, latency 0, IRQ 47 I/O ports at ac00 [size=256] Memory at fdcff000 (64-bit, non-prefetchable) [size=4K] [virtual] Expansion ROM at fdb00000 [disabled] [size=128K] Capabilities: [40] Power Management version 2 Capabilities: [48] Vital Product Data Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+ Capabilities: [60] Express Endpoint, MSI 00 Capabilities: [84] Vendor Specific Information: Len=4c <?> Capabilities: [100] Advanced Error Reporting Capabilities: [12c] Virtual Channel Capabilities: [148] Device Serial Number 32-00-00-00-10-ec-81-68 Capabilities: [154] Power Budgeting <?> Kernel driver in use: r8169 Kernel modules: r8169 sudo rfkill list all 2: phy2: Wireless LAN Soft blocked: no Hard blocked: no Would appreciate insight on how to chase this down.

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• How to work around a possible XNA Game Studio or Windows Phone SDK install failure on Windows 8

  - by Laurent Bugnion

  I am not sure if you guys know Aaron Stebner. Aaron works at Microsoft, and has pulled thorns from my side many many times already. His blog is at http://blogs.msdn.com/b/astebner and it is a gold mine of tips and tricks to debug and solve many cryptic issues happening during installation and removal of programs. For example, Aaron taught me how to remove programs that do not appear in the Programs and Features list, amongst many other things. The last nugget I used from Aaron’s blog saved my butt just before a presentation where I had to run both Visual Studio 10 with the Windows Phone SDK, and Visual Studio 11 for WinRT development. Of course this had to be on Windows 8. Unfortunately when you install the Windows Phone SDK on Windows 8, you may (or may not, I saw both scenarios) encounter an issue with XNA, and the installation fails. Unfortunately, even if you don’t use XNA in your apps, this will prevent even normal Windows Phone app development. Fortunately, Aaron has a fix for that. I hope that this helps spread the word, and increase Aaron’s blog’s visibility! Happy coding, Laurent   Laurent Bugnion (GalaSoft) Subscribe | Twitter | Facebook | Flickr | LinkedIn

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• VHOST not working in Apache

  - by Starx

  I got a LAMP server working in Ubuntu 11.04. Now the problem is that the websites have to enabled and disabled from the terminal. All all of them have to be accessed from http://localhost which is not so much efficient. So I created a VHOSTS, using some tutorials off the net. Here is the coding for it <VirtualHost *:80> ServerAdmin webmaster@localhost Servername site.com ServerAlias www.site.com DocumentRoot /home/starx/public_html/site/public <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /home/starx/public_html/site/public> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> nGen ErrorLog ${APACHE_LOG_DIR}/site-error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/site-access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> </VirtualHost> Now, still I can't access the page in http://site.com but if i access using http://localhsot/ it is accessed. I have disabled all others site including default and have just enabled one site i.e. site How to fix this?

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• Final Release of Silverlight Tools for Visual Studio 2010 Released

  - by dwahlin

  If you haven’t already heard the news, the final release of the Silverlight Tools for Visual Studio 2010 have been released! That’s great news for Silverlight developers and to top it off the crew up at Microsoft even snuck in a few new features including intellisense for styles (a big deal in my opinion) and the ability to easily manipulate Grid rows and columns.  One of the most time consuming (and boring) tasks experienced by developers is also covered with the new “Go To Value Definition” feature that allows you to jump directly to style definitions with ease.  That feature alone is worth the upgrade especially if you’re working with a large application that uses a lot of styles. Here’s a quick run-down of the features provided by the latest release from the Microsoft team: Support for targeting Silverlight 4 in the Silverlight designer and project system RIA Services application templates and libraries to simplify access to your data services (check out this Silverlight.tv video and whitepaper giving full details) Support for Silverlight 4 elevated trust and out-of-browser applications Enhanced support for other new Silverlight 4 features, including: Working with Implicit Styles Go To Value Definition - navigate directly from controls on your page to styles that are applied to them. Style Intellisense - easily modify styles you already have in XAML Working with Data Source Window outputs Data Source Selector - easily select and modify your data source information Grid Row and Column context menu - Add, remove, and re-sort DSW outputs and other Grid layouts Thickness Editor for editing Margins, Padding etc. Sample Data Support -  see your item templates and bindings light up at design time Working with Silverlight 4 Out-of-Browser applications Automatically launch and debug your OOB app from inside the IDE Specify XAP signing for trusted OOB apps Set the OOB window characteristics If you’d like to see some of the new features in action check out this Channel 9 video with Mark Wilson-Thomas and John Papa.

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• Formatting minified jQuery, JavaScript using the Internet Explorer 9 Developer Toolbar

  - by Harish Ranganathan

  Much has been talked about the F12 developer toolbar in IE and the support it provides for web developers.  Starting IE8, the Developer Toolbar is a menu item that helps you view the page source, scripts, profiling and many other details of the rendered page.  It even allows script debugging from within and that makes it a truly powerful web developer tool bar. With IE9, the developer toolbar got even better with the Networking Tab that allows you to inspect the traffic/time taken and drill down into the Request/Response headers and other specifics. The script tab allows you to view the scripts used in the page. One of the challenges of working with JavaScript / jQuery when they are minified, is that, it becomes really hard to read.  Minified JavaScript is a compression technique and also a best practice for delivering faster web pages.  However, when you would like to debug, minified JavaScript files become very hard since they aren't properly formatted.  Take the case of the above sample, which is a basic MVC 3 Web Application.  It uses the minified jQuery and modernizr files. Once we select the above scripts, the script source looks as follows:- But with the “Format JavaScript” option in the Configuration icon, Once you click on the “Format JavaScript”, you can see the formatted JavaScript as per screen below:- This makes the script readable and also easy for debugging.  Cheers !!!

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• IIS Not Accepting Active Directory Login Credentials

  - by Dale Jay

  I have an ASP.NET web form using Microsoft's boilerplate Active Directory login page, set up exactly as suggested. Windows Authentication is activated on the "Default Website" and "MyWebsite" levels, and Domain\This.User is given "Allow" access to the site. After entering the valid credentials for This.User on the web form, a popup window appears asking me to enter my credentials yet again. Despite entering valid credentials for This.User (after attempting Domain\This.User and This.User formats), it rejects the credentials and returns an unauthorized security headers page (error 401.2). Active Directory user This.User is valid, the IP address of the AD server has been verified and SPN's have been set up for the server. Error Code: 0x80070005 Default Web Site security config: <system.web> <identity impersonate="true" /> <authentication mode="Windows" /> <customErrors mode="Off" /> <compilation debug="true" /> </system.web> Sub web site security <authentication mode="Windows"> <forms loginUrl="~/logon.aspx" timeout="2880" /> </authentication> <authorization> <deny users="?" /> <allow users="*" /> </authorization>

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• Setting up shared connection

  - by Calvin Froedge

  I have a network that is connected to the internet via a switch connected to a router. I have it setup like this so I can work on the new network without causing problems on the old. Anyway, I'm trying to enable internet connection sharing. Internet comes to server like this: Modem - Router - Switch - Ubuntu 11.10 (Eth0) I want to share the connection through Eth1 (Eth1 - Managed Switch - Clients). Here is my config for /etc/network/interfaces: I have a DHCP server running on Eth1. Here is my config: ddns-update-style none; option domain-name "myserver.local"; option domain-name-servers 192.168.1.2, 8.8.8.8; default-lease-time 600; max-lease-time 7200; authoritative; subnet 192.168.1.0 netmask 255.255.255.0 { interface eth1; range 192.168.1.3 192.168.1.254; option routers 192.168.1.1; option subnet-mask 255.255.255.0; option broadcast-address 192.168.1.255; } Here is /etc/network/interfaces: # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet dhcp #Used for internal network auto eth1 iface eth1 inet static address 192.168.1.2 netmask 255.255.255.0 broadcast 192.168.1.255 network 192.168.1.0 Here is /etc/hosts: 127.0.0.1 localhost 127.0.1.1 myserver.isp.com server 192.168.1.2 server.myserver.local server myserver.local In /etc/sysctl.conf, I've set the following: net.ipv4.ip_forward=1 Finally, in /etc/rc.local, I've set the following: /sbin/iptables -P FORWARD ACCEPT /sbin/iptables --table nat -A POSTROUTING -o eth1 -j MASQUERADE When I ping 8.8.8.8 (google's DNS) from a client that is authenticated with my DHCP server (they have been assigned a local ip, like 192.168.1.10), I get a timeout. How can I debug this further to figure out where my problem is?

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• Moving from windows to linux

  - by rincewind

  I need to reconcile these 2 facts: I don't feel comfortable working on Linux; I need to develop software for Linux. Some background: I have a 10+ years of programming experience on Windows (almost exclusively C/C++, but some .NET as well), I was a user of FreeBSD at home for about 3 years or so (then had to go back to Windows), and I've never had much luck with Linux. And now I have to develop software for Linux. I need a plan. On Windows, you can get away with just knowing a programming language, an API you're coding against, your IDE (VisualStudio) and some very basic tools for troubleshooting (Depends, ProcessExplorer, DebugView, WinDbg). Everything else comes naturally. On Linux, it's a very different story. How the hell would I know what DLL (sorry, Shared Object) would load, if I link to it from Firefox plugin? What's the Linux equivalent of inserting __asm int 3/DebugBreak() in the source and running the program, and then letting the OS call a debugger? Why the hell release builds use something, called appLoader, while debug builds work somehow different? Worst of all: how to provision Linux development environment? So, taking into account that hatred is usually associated with not knowing enough, what would you recommend? I'm ok with Emacs and GCC. I need to educate myself as a Linux admin/user, and I need to learn proper troubleshooting tools (strace is cool, btw), equivalents to the ones I mentioned above. Do I need to do Linux From Scratch? Or do I need to just read some books (I've read "UNIX programming enviornment" by Kernighan and "Advanced Programming..." by Stevens, but I need to learn something more practical)? Or do I need to have some Linux distro on my home computer?

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