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• Parse and read data frame in C?

  - by user253656

  I am writing a program that reads the data from the serial port on Linux. The data are sent by another device with the following frame format: |start | Command | Data | CRC | End | |0x02 | 0x41 | (0-127 octets) | | 0x03| ---------------------------------------------------- The Data field contains 127 octets as shown and octet 1,2 contains one type of data; octet 3,4 contains another data. I need to get these data I know how to write and read data to and from a serial port in Linux, but it is just to write and read a simple string (like "ABD") My issue is that I do not know how to parse the data frame formatted as above so that I can: get the data in octet 1,2 in the Data field get the data in octet 3,4 in the Data field get the value in CRC field to check the consistency of the data Here the sample snip code that read and write a simple string from and to a serial port in Linux: int writeport(int fd, char *chars) { int len = strlen(chars); chars[len] = 0x0d; // stick a <CR> after the command chars[len+1] = 0x00; // terminate the string properly int n = write(fd, chars, strlen(chars)); if (n < 0) { fputs("write failed!\n", stderr); return 0; } return 1; } int readport(int fd, char *result) { int iIn = read(fd, result, 254); result[iIn-1] = 0x00; if (iIn < 0) { if (errno == EAGAIN) { printf("SERIAL EAGAIN ERROR\n"); return 0; } else { printf("SERIAL read error %d %s\n", errno, strerror(errno)); return 0; } } return 1; } Does anyone please have some ideas? Thanks all.

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• Why is a non-blocking TCP connect() occasionally so slow on Linux?

  - by pts

  I was trying to measure the speed of a TCP server I'm writing, and I've noticed that there might be a fundamental problem of measuring the speed of the connect() calls: if I connect in a non-blocking way, connect() operations become very slow after a few seconds. Here is the example code in Python: #! /usr/bin/python2.4 import errno import os import select import socket import sys def NonBlockingConnect(sock, addr): while True: try: return sock.connect(addr) except socket.error, e: if e.args[0] not in (errno.EINPROGRESS, errno.EALREADY): raise os.write(2, '^') if not select.select((), (sock,), (), 0.5)[1]: os.write(2, 'P') def InfiniteClient(addr): while True: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0) sock.setblocking(0) sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # sock.connect(addr) NonBlockingConnect(sock, addr) sock.close() os.write(2, '.') def InfiniteServer(server_socket): while True: sock, addr = server_socket.accept() sock.close() server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0) server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) server_socket.bind(('127.0.0.1', 45454)) server_socket.listen(128) if os.fork(): # Parent. InfiniteServer(server_socket) else: addr = server_socket.getsockname() server_socket.close() InfiniteClient(addr) With NonBlockingConnect, most connect() operations are fast, but in every few seconds there happens to be one connect() operation which takes at least 2 seconds (as indicated by 5 consecutive P letters on the output). By using sock.connect instead of NonBlockingConnect all connect operations seem to be fast. How is it possible to get rid of these slow connect()s? I'm running Ubuntu Karmic desktop with the standard PAE kernel: Linux narancs 2.6.31-20-generic-pae #57-Ubuntu SMP Mon Feb 8 10:23:59 UTC 2010 i686 GNU/Linux

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• Cant add network printer with system-config-printer package

  - by Erick David Ruiz Coronel

  Hello im new here and I dont know if im doing it right but I hope yes. I have a printer conected to a windows 8 machine, also I had ubuntu 13.04 and it worked fine when I printed from linux to windows but when I upgraded to 13.10 my printer didnt worked, I removed it thinking that would fix it but when I tryed to add the printer again I couldnt, I reinstalled cups and the system-config-printer-gnome package but didnt worked. Here is the terminal log : erick@Tauro:~$ system-config-printer Caught non-fatal exception. Traceback: File "/usr/share/system-config-printer/probe_printer.py", line 255, in _do_find fn () File "/usr/share/system-config-printer/probe_printer.py", line 367, in _probe_hplip stderr=null) File "/usr/lib/python2.7/subprocess.py", line 709, in init errread, errwrite) File "/usr/lib/python2.7/subprocess.py", line 1326, in _execute_child raise child_exception OSError: [Errno 2] No existe el archivo o el directorio Continuing anyway.. Traceback (most recent call last): File "/usr/share/system-config-printer/newprinter.py", line 912, in on_btnNPForward_clicked self.nextNPTab() File "/usr/share/system-config-printer/newprinter.py", line 1064, in nextNPTab stderr=file("/dev/null")) File "/usr/lib/python2.7/subprocess.py", line 709, in init errread, errwrite) File "/usr/lib/python2.7/subprocess.py", line 1326, in _execute_child raise child_exception OSError: [Errno 2] No existe el archivo o el directorio Any suggestion please? C:

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• Mysql server fails to start

  - by Nicolas Thery

  Googling since two hours, I require your assistance. I'm on a Debian virtual machine and I cloned it. The only change is the new IP adress it has. Mysql doesn't start any more: Starting MySQL database server: mysqld . . . . . . . . . . . . . . failed! There is no process called mysql. All the mysql log files in /var/log are empty. here is my.cnf file : [client] port = 3306 socket = /var/run/mysqld/mysqld.sock [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] user = mysql pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock port = 3306 basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp language = /usr/share/mysql/english skip-external-locking bind-address = 127.0.0.1 key_buffer = 16M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 8 myisam-recover = BACKUP query_cache_limit = 1M query_cache_size = 16M general_log_file = /var/log/mysql/mysql.log log_bin = /var/log/mysql/mysql-bin.log expire_logs_days = 10 max_binlog_size = 100M [mysqldump] quick quote-names max_allowed_packet = 16M [mysql] [isamchk] key_buffer = 16M [mysqld_safe] syslog Here is the result of ifconfig : eth0 Link encap:Ethernet HWaddr 00:0c:29:12:98:9a inet adr:192.168.1.138 Bcast:192.168.1.255 Masque:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:754 errors:0 dropped:0 overruns:0 frame:0 TX packets:106 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:1000 RX bytes:101177 (98.8 KiB) TX bytes:17719 (17.3 KiB) lo Link encap:Boucle locale inet adr:127.0.0.1 Masque:255.0.0.0 adr inet6: ::1/128 Scope:Hôte UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:0 RX bytes:560 (560.0 B) TX bytes:560 (560.0 B) As requested, here is the result of : sudo -u mysql mysqld, here is the result : root@debian:/home/nicolas/Bureau# sudo -u mysql mysqld 121004 14:26:57 [Note] Plugin 'FEDERATED' is disabled. mysqld: Can't find file: './mysql/plugin.frm' (errno: 13) 121004 14:26:57 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 121004 14:26:57 InnoDB: Initializing buffer pool, size = 8.0M 121004 14:26:57 InnoDB: Completed initialization of buffer pool 121004 14:26:57 InnoDB: Started; log sequence number 0 70822697 121004 14:26:57 [Note] Recovering after a crash using /var/log/mysql/mysql-bin 121004 14:26:57 [Note] Starting crash recovery... 121004 14:26:57 [Note] Crash recovery finished. 121004 14:26:57 [ERROR] mysqld: Can't find file: './mysql/host.frm' (errno: 13) 121004 14:26:57 [ERROR] Fatal error: Can't open and lock privilege tables: Can't find file: './mysql/host.frm' (errno: 13)

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• startx doesnt run gives an error xauth unable to link authority files

  - by Sandeep

  I have installed windows xp on VPC and have installed cygwin-x on that virtual machine. When i run startx command. I get the following error: xauth: creating new authority file /home/Administrator/.serverauth.1480 xauth: unable to link authority file /home/Administrator/.serverauth.1480, use /home/Administrator/.serverauth.1480-n xauth: creating new authority file /home/Administrator/.Xauthority xauth: creating new authority file /home/Administrator/.Xauthority xauth: unable to link authority file /home/Administrator/.Xauthority, use /home /Administrator/.Xauthority-n xauth: creating new authority file /home/Administrator/.Xauthority xauth: creating new authority file /home/Administrator/.Xauthority xauth: unable to link authority file /home/Administrator/.Xauthority, use /home /Administrator/.Xauthority-n giving up. xinit: No such file or directory (errno 2): unable to connect to X server xinit: No such process (errno 3): Server error. xauth: creating new authority file /home/Administrator/.Xauthority

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• startx doesnt run gives an error xauth unable to link authority files

  - by Sandeep

  I have installed windows xp on VPC and have installed cygwin-x on that virtual machine. When i run startx command. I get the following error: xauth: creating new authority file /home/Administrator/.serverauth.1480 xauth: unable to link authority file /home/Administrator/.serverauth.1480, use /home/Administrator/.serverauth.1480-n xauth: creating new authority file /home/Administrator/.Xauthority xauth: creating new authority file /home/Administrator/.Xauthority xauth: unable to link authority file /home/Administrator/.Xauthority, use /home /Administrator/.Xauthority-n xauth: creating new authority file /home/Administrator/.Xauthority xauth: creating new authority file /home/Administrator/.Xauthority xauth: unable to link authority file /home/Administrator/.Xauthority, use /home /Administrator/.Xauthority-n giving up. xinit: No such file or directory (errno 2): unable to connect to X server xinit: No such process (errno 3): Server error. xauth: creating new authority file /home/Administrator/.Xauthority

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• Connection from Apache to Tomcat via mod_jk not working

  - by Tobias Schittkowski

  I would like to connect apache to tomcat via mod_jk (same machine). The ajp connector in tomcat is listening on port 8009, the worker settings are: worker.worker1.port=8009 worker.worker1.host=localhost However, the connection fails, here is the mod_jk debug log: [debug] wc_get_name_for_type::jk_worker.c (292): Found worker type 'ajp13' [debug] init_ws_service::mod_jk.c (1097): Service protocol=HTTP/1.1 method=GET ssl=false host=(null) addr=127.0.0.1 name=localhost port=80 auth=(null) user=(null) laddr=127.0.0.1 raddr=127.0.0.1 uri=/share [debug] ajp_get_endpoint::jk_ajp_common.c (3154): acquired connection pool slot=0 after 0 retries [debug] ajp_marshal_into_msgb::jk_ajp_common.c (626): ajp marshaling done [debug] ajp_service::jk_ajp_common.c (2449): processing worker1 with 2 retries [debug] ajp_send_request::jk_ajp_common.c (1623): (worker1) all endpoints are disconnected. [debug] jk_open_socket::jk_connect.c (485): socket TCP_NODELAY set to On [debug] jk_open_socket::jk_connect.c (609): trying to connect socket 560 to 0.0.0.0:0 [info] jk_open_socket::jk_connect.c (627): connect to 0.0.0.0:0 failed (errno=47) [info] ajp_connect_to_endpoint::jk_ajp_common.c (995): Failed opening socket to (0.0.0.0:0) (errno=47) Why does mod_jk try to connect to 0.0.0.0:0 and not to 127.0.0.1:8009??? Thank you for your help! Tobias

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• How to install SIP+PyQt with apt-get + pip + virtualenv?

  - by kjo

  [I originally posted this question, under a different title, in StackOverflow (here), but later I realized that my problem is very specific to apt-get, hence I am re-posting it here. Sorry for the duplication.] I'm trying to install PyQt on Ubuntu (and within a virtualenv). The list of obstacles I'm dealing with is far too long to include here, but the one I'm currently trying to get past is this: % workon myvenv (myvenv)% cd ~/.virtualenvs/myvenv/build/pyqt (myvenv)% python ./configure.py Traceback (most recent call last): File "./configure.py", line 32, in <module> import sipconfig OK, so let's install sipconfig... (myvenv)% pip install SIP Downloading/unpacking SIP Downloading sip-4.14.8-snapshot-02bdf6cc32c1.zip (848Kb): 848Kb downloaded Running setup.py egg_info for package SIP Traceback (most recent call last): File "<string>", line 14, in <module> IOError: [Errno 2] No such file or directory: '/home/yt/.virtualenvs/myvenv/build/SIP/setup.py' Complete output from command python setup.py egg_info: Traceback (most recent call last): File "<string>", line 14, in <module> IOError: [Errno 2] No such file or directory: '/home/yt/.virtualenvs/myvenv/build/SIP/setup.py' ---------------------------------------- Command python setup.py egg_info failed with error code 1 in /home/yt/.virtualenvs/myvenv/build/SIP Storing complete log in /home/yt/.pip/pip.log The only recipe I've found so far installing SIP is this % python configure.py % make % sudo make install ...but this recipe goes against my policy of doing all my Ubuntu installations either through apt-get (or through pip in the case of Python modules). Is there some way that I can install SIP with apt-get (and possibly pip)?

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• juju -v status ERROR Invalid SSH key

  - by Captain T

  root@cloudcontrol:/storage# juju -v status 2012-06-07 11:19:47,602 DEBUG Initializing juju status runtime 2012-06-07 11:19:47,621 INFO Connecting to environment... 2012-06-07 11:19:47,905 DEBUG Connecting to environment using node-386077143930... 2012-06-07 11:19:47,906 DEBUG Spawning SSH process with remote_user="ubuntu" remote_host="node-386077143930" remote_port="2181" local_port="57004". The authenticity of host 'node-386077143930 (10.5.5.113)' can't be established. ECDSA key fingerprint is 31:94:89:62:69:83:24:23:5f:02:70:53:93:54:b1:c5. Are you sure you want to continue connecting (yes/no)? yes 2012-06-07 11:19:52,102 ERROR Invalid SSH key 2012-06-07 11:19:52,426:18541(0x7feb13b58700):ZOO_INFO@log_env@658: Client environment:zookeeper.version=zookeeper C client 3.3.5 2012-06-07 11:19:52,426:18541(0x7feb13b58700):ZOO_INFO@log_env@662: Client environment:host.name=cloudcontrol 2012-06-07 11:19:52,426:18541(0x7feb13b58700):ZOO_INFO@log_env@669: Client environment:os.name=Linux 2012-06-07 11:19:52,426:18541(0x7feb13b58700):ZOO_INFO@log_env@670: Client environment:os.arch=3.2.0-23-generic 2012-06-07 11:19:52,426:18541(0x7feb13b58700):ZOO_INFO@log_env@671: Client environment:os.version=#36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 2012-06-07 11:19:52,428:18541(0x7feb13b58700):ZOO_INFO@log_env@679: Client environment:user.name=sysadmin 2012-06-07 11:19:52,428:18541(0x7feb13b58700):ZOO_INFO@log_env@687: Client environment:user.home=/root 2012-06-07 11:19:52,428:18541(0x7feb13b58700):ZOO_INFO@log_env@699: Client environment:user.dir=/storage 2012-06-07 11:19:52,428:18541(0x7feb13b58700):ZOO_INFO@zookeeper_init@727: Initiating client connection, host=localhost:57004 sessionTimeout=10000 watcher=0x7feb11afc6b0 sessionId=0 sessionPasswd= context=0x2dc7d20 flags=0 2012-06-07 11:19:52,429:18541(0x7feb0e856700):ZOO_ERROR@handle_socket_error_msg@1579: Socket [127.0.0.1:57004] zk retcode=-4, errno=111(Connection refused): server refused to accept the client 2012-06-07 11:19:55,765:18541(0x7feb0e856700):ZOO_ERROR@handle_socket_error_msg@1579: Socket [127.0.0.1:57004] zk retcode=-4, errno=111(Connection refused): server refused to accept the client This is from a clean install with 2 nodes all running 12.04 Precise juju bootstrap - finishes with no errors and allocates the machine to the user but still no joy after juju environment-destroy and rebuild with different users and different nodes. Anyone got any ideas

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• Invalid SSH key erron in juju

  - by Captain T

  This is the output of juju from a clean install with 2 nodes all running 12.04 Precise juju bootstrap - finishes with no errors and allocates the machine to the user but still no joy after juju environment-destroy and rebuild with different users and different nodes. root@cloudcontrol:/storage# juju -v status 2012-06-07 11:19:47,602 DEBUG Initializing juju status runtime 2012-06-07 11:19:47,621 INFO Connecting to environment... 2012-06-07 11:19:47,905 DEBUG Connecting to environment using node-386077143930... 2012-06-07 11:19:47,906 DEBUG Spawning SSH process with remote_user="ubuntu" remote_host="node-386077143930" remote_port="2181" local_port="57004". The authenticity of host 'node-386077143930 (10.5.5.113)' can't be established. ECDSA key fingerprint is 31:94:89:62:69:83:24:23:5f:02:70:53:93:54:b1:c5. Are you sure you want to continue connecting (yes/no)? yes 2012-06-07 11:19:52,102 ERROR Invalid SSH key 2012-06-07 11:19:52,426:18541(0x7feb13b58700):ZOO_INFO@log_env@658: Client environment:zookeeper.version=zookeeper C client 3.3.5 2012-06-07 11:19:52,426:18541(0x7feb13b58700):ZOO_INFO@log_env@662: Client environment:host.name=cloudcontrol 2012-06-07 11:19:52,426:18541(0x7feb13b58700):ZOO_INFO@log_env@669: Client environment:os.name=Linux 2012-06-07 11:19:52,426:18541(0x7feb13b58700):ZOO_INFO@log_env@670: Client environment:os.arch=3.2.0-23-generic 2012-06-07 11:19:52,426:18541(0x7feb13b58700):ZOO_INFO@log_env@671: Client environment:os.version=#36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 2012-06-07 11:19:52,428:18541(0x7feb13b58700):ZOO_INFO@log_env@679: Client environment:user.name=sysadmin 2012-06-07 11:19:52,428:18541(0x7feb13b58700):ZOO_INFO@log_env@687: Client environment:user.home=/root 2012-06-07 11:19:52,428:18541(0x7feb13b58700):ZOO_INFO@log_env@699: Client environment:user.dir=/storage 2012-06-07 11:19:52,428:18541(0x7feb13b58700):ZOO_INFO@zookeeper_init@727: Initiating client connection, host=localhost:57004 sessionTimeout=10000 watcher=0x7feb11afc6b0 sessionId=0 sessionPasswd=<null> context=0x2dc7d20 flags=0 2012-06-07 11:19:52,429:18541(0x7feb0e856700):ZOO_ERROR@handle_socket_error_msg@1579: Socket [127.0.0.1:57004] zk retcode=-4, errno=111(Connection refused): server refused to accept the client 2012-06-07 11:19:55,765:18541(0x7feb0e856700):ZOO_ERROR@handle_socket_error_msg@1579: Socket [127.0.0.1:57004] zk retcode=-4, errno=111(Connection refused): server refused to accept the client

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• No GUI boot; startx error, I suspect no filesystem corruption.

  - by Dharmaj Soni

  Till yesterday, my Ubuntu 9.10 was working fine. I had watched a movie using vlc. I had also charged my ipod using the laptop. Today, when I started it, I automatically booted into command line. There seems to be no filesystem corruption etc as I can view/open (text) files. Before the CLI appeared, the screen blinked with a cursor, then the white Ubuntu logo flashed, and then I got the CLI login prompt. After logging in, if I try startx, to start gnome, I get the following error after a few seconds: giving up xinit: No such file or directory (errno 2): unable to connect to X server xinit: No such process (errno 3): Server error* The same error comes up, even if I use sudo, or if I change my directory to '/' before using startx, and also when, from the grub, using the recovery mode option to load into CLI, and then trying startx. On trying command 'xinit', I get "Server error" Also, on trying GDM, I get 2 errors. I cannot connect to the internet in this state. Thanks for any help. I am using Dell Inspiron 1440, no special graphics card.

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• I am trying to install Kubuntu, but I get a metalink error

  - by Brook Bentley

  It looks like the ISO metalink is broken for the Kubuntu install from Wubi. Can you please fix this? Or, help me figure out what I'm doing wrong. I receive the following error: 'An error occurred: Cannot download the metalink and therefore the ISO For more information, please see the log file: c:\users\bbentley\appdata\local\temp\wubi-12.04-rev269.log' The log file contains the following errors: '08-30 14:28 DEBUG TaskList: ### Running get_metalink... 08-30 14:28 DEBUG downloader: downloading http://releases.ubuntu.com/kubuntu/12.04/kubuntu-12.04-desktop-amd64.metalink > C:\ubuntu\install 08-30 14:28 ERROR CommonBackend: Cannot download metalink file err=[Errno 14] HTTP Error 404: Not Found 08-30 14:28 DEBUG downloader: downloading http://cdimage.ubuntu.com/kubuntu/daily-live/current/precise-desktop-amd64.metalink > C:\ubuntu\install 08-30 14:28 ERROR CommonBackend: Cannot download metalink file2 err=[Errno 14] HTTP Error 404: Not Found 08-30 14:28 DEBUG TaskList: ### Finished get_metalink 08-30 14:28 ERROR TaskList: Cannot download the metalink and therefore the ISO Traceback (most recent call last): File "\lib\wubi\backends\common\tasklist.py", line 197, in __call__ File "\lib\wubi\backends\common\backend.py", line 595, in get_iso File "\lib\wubi\backends\common\backend.py", line 406, in download_iso Exception: Cannot download the metalink and therefore the ISO 08-30 14:28 DEBUG TaskList: # Cancelling tasklist 08-30 14:28 DEBUG TaskList: # Finished tasklist 08-30 14:28 ERROR root: Cannot download the metalink and therefore the ISO Traceback (most recent call last): File "\lib\wubi\application.py", line 58, in run File "\lib\wubi\application.py", line 132, in select_task File "\lib\wubi\application.py", line 158, in run_installer File "\lib\wubi\backends\common\tasklist.py", line 197, in __call__ File "\lib\wubi\backends\common\backend.py", line 595, in get_iso File "\lib\wubi\backends\common\backend.py", line 406, in download_iso Exception: Cannot download the metalink and therefore the ISO'

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• Problems installing Ubuntu server and desktop

  - by Rufus

  google translate Good afternoon I'm new to linux, I have to install a proxy and to them I decided on Ubuntu, the problem is that it took several days trying to install Ubuntu on any version and when installing i get error [Errno 5] input / output error says that is because the disc (cd or dvd) is bad or faulty change it and save all denuevo but I get the same error try changing the hard drive to see if my drive had no problem and I also get the same error , the machine where I want to mount the Ubuntu is a P4 with 1GB rAM and 40GB disk is more than the minimum requirements for even so I get the error ... I would like someone could help me thank you very much ..... original Problemas al instalar Ubuntu server y desktop Buenas tardes soy nuevo en linux, tengo que instalar un proxy y para ellos me decidi por Ubuntu, el problema es que llevo varios dias tratando de instalar Ubuntu en cualquiera de sus versiones y al momento de instalar me sale error [Errno 5] input/output error dice que se debe a que el disco (cd o dvd) esta malo o defectuoso lo cambie y grabe todo denuevo pero me sale el mismo error trate de cambiar el disco duro para ver si no tenia problema mi disco y tambien me sale el mismo error, la maquina donde quiero montar el Ubuntu es un p4 con 1gb ram y disco de 40gb, es mas de los requerimientos minimos por aun asi me sale el error... me gustaria que alguien me pudiera ayudar muchas gracias.....

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• GNOME session not starting after filesystem corruption

  - by user3215

  I'm running Ubuntu 9.10 desktop edition. Suddenly today /home became corrupted and I was prompted to run fsck manually. I ran fsck -y /home and rebooted the system. The system booted but I got no GUI interface (GNOME session) but a black screen with a user prompt instead. Any tricks here to start my system normally? Any help is greatly appreciated. EDIT:1 The error were similar to the the following(may be with some mistakes as I had to type it manually): machine1 login: root password: at login Sun Jan 16 15:30:46 IST 2011 on tty1 EXT3-fs error (devie sda1): ext3_lookup :deleted inode referenced aborting journal on device sda1 Remounting filesystem read-only root@machine1:~# startx ktemp: failed to create file via template `/tmp/serverauth.xxxxxxxxxxx: Read-only file /usr/bin/startx: line 157: cannot create temp file for here-document: Read-only file xauth: error in locking authority file /root/.Xauthority /usr/bin/startx: line 173: cannnot create temp file for here-document: Read-only file xauth: error in locking authority file /root/.Xauthority /usr/bin/startx: line 173: cannnot create temp file for here-document: Read-only file X: cannot stat /tmp/.x11-unix (No such file or directory), aborting giving up. xinit: No such file or directory (errno 2): unable to connect to xserver xinit: No such process (errno 3): Server error xauth: error in locking authority file /root/.Xauthority

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• ESXi v5.5 is having random crashes

  - by Darkmage

  HW: Type: HP Proliant ML350 G5 RAM 22GB CPU 1 x Intel Xenon E5405 2.00GHz OP: ESXi 5.5 just updated from 5.1 to try and fix the crashes occurring on ESXi 5.1 on same hardware. I'm trying to find the error on why one of our servers is crashing, it has had two lock ups in 24 hours now. The internal error light on the front is blinking red, on the inside only "#5 and #6 page 76 manual" the "Processor 2" light "amber" and the "Power" light "green" is shining. in the logs the only errors i can see in the relevant time frame is in log under. Is this the reason? or is there anything else i can do to try and log/locate the error. from zcat syslog.6.gz | less 2014-05-26T11:55:47Z sfcbd[35064]: Error opening socket pair for getProviderContext: Too many open files 2014-05-26T11:55:47Z sfcbd[35064]: Failed to set recv timeout (30) for socket -1. Errno = 9 2014-05-26T11:55:47Z sfcbd[35064]: Failed to set timeout for local socket (e.g. provider) 2014-05-26T11:55:47Z sfcbd[35064]: spGetMsg receiving from -1 35064-9 Bad file descriptor 2014-05-26T11:55:47Z sfcbd[35064]: rcvMsg receiving from -1 35064-9 Bad file descriptor 2014-05-26T11:55:47Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:55:47Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:55:47Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:55:47Z sfcbd[35064]: Error opening socket pair for getProviderContext: Too many open files 2014-05-26T11:55:47Z sfcbd[35064]: Failed to set recv timeout (30) for socket -1. Errno = 9 2014-05-26T11:55:47Z sfcbd[35064]: Failed to set timeout for local socket (e.g. provider) 2014-05-26T11:55:47Z sfcbd[35064]: spGetMsg receiving from -1 35064-9 Bad file descriptor 2014-05-26T11:55:47Z sfcbd[35064]: rcvMsg receiving from -1 35064-9 Bad file descriptor 2014-05-26T11:55:47Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:55:47Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:55:47Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:55:53Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:55:57Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:01Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:04Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:15Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:17Z sfcbd[35064]: Error opening socket pair for getProviderContext: Too many open files 2014-05-26T11:56:17Z sfcbd[35064]: Failed to set recv timeout (30) for socket -1. Errno = 9 2014-05-26T11:56:17Z sfcbd[35064]: Failed to set timeout for local socket (e.g. provider) 2014-05-26T11:56:17Z sfcbd[35064]: spGetMsg receiving from -1 35064-9 Bad file descriptor 2014-05-26T11:56:17Z sfcbd[35064]: rcvMsg receiving from -1 35064-9 Bad file descriptor 2014-05-26T11:56:17Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:17Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:17Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:17Z sfcbd[35064]: Error opening socket pair for getProviderContext: Too many open files 2014-05-26T11:56:17Z sfcbd[35064]: Failed to set recv timeout (30) for socket -1. Errno = 9 2014-05-26T11:56:17Z sfcbd[35064]: Failed to set timeout for local socket (e.g. provider) 2014-05-26T11:56:17Z sfcbd[35064]: spGetMsg receiving from -1 35064-9 Bad file descriptor 2014-05-26T11:56:17Z sfcbd[35064]: rcvMsg receiving from -1 35064-9 Bad file descriptor 2014-05-26T11:56:17Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:17Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:17Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:23Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:27Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:31Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:34Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:34Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:34Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:34Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:34Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:44Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:44Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:44Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:44Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:46Z sfcb-ProviderManager[34828]: SendMsg sending to 1 34828-9 Bad file descriptor 2014-05-26T11:56:48Z sfcbd[35064]: Error opening socket pair for getProviderContext: Too many open files -- manual

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• CentOS - Yum doesn't update anymore?

  - by Xanathos

  I've been trying to use yum now, but for some reason, not even the search work anymore. I even tried putting packages I already downloaded in the search criteria and is the same. [root@AMDFX03 Downloads]# yum search glibc Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile epel/metalink | 22 kB 00:00 * base: centos.secrel.com.br * epel: archive.linux.duke.edu * extras: centos.secrel.com.br * rpmforge: apt.sw.be * updates: centos.secrel.com.br adobe-linux-x86_64/primary | 1.2 kB 00:00 http://linuxdownload.adobe.com/linux/x86_64/repodata/primary.xml.gz: [Errno -1] Metadata file does not match checksum Trying other mirror. Error: failure: repodata/primary.xml.gz from adobe-linux-x86_64: [Errno 256] No more mirrors to try. This error always appear no matter what I do. Please, can you tell me how to fix this, or at least how to reset yum's configuration?

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• failbit is being set and I can't figure out why

  - by felipedrl

  I'm writing a MIDI file loader. Everything is going fine until at some track I get a failbit exception while trying to read from file. I can't figure out why, I've checked the file size and it's ok too. Upon checking "errno" and it returns "0". Any ideas? Thanks. The snippet follows: file.read(reinterpret_cast<char*>(&mHeader.id), sizeof(MidiHeader)); mTracks = new MidiTrack[mHeader.nTracks]; for (uint i = 0; i < mHeader.nTracks; ++i) { // this read fails on 6th i. I've checked hexadecimal file and it's // ok so far. file.read(reinterpret_cast<char*>(&mTracks[i].id), sizeof(uint)); if (file.fail()) { std::cerr << errno << std::endl; massert(false); } massert(mTracks[i].id == 0x6B72544D); file.read(reinterpret_cast<char*>(&mTracks[i].size), sizeof(uint)); mTracks[i].size = swapBytes(mTracks[i].size); mTracks[i].data = new char[mTracks[i].size]; file.read(mTracks[i].data, mTracks[i].size * sizeof(char)); totalBytesRead += 8 + mTracks[i].size; massert(totalBytesRead <= fileSize); }

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• System locking up with suspicious messages about hard disk

  - by Chris Conway

  My system has started behaving strangely, intermittently locking up. I see messages like the following in syslog: Nov 18 22:22:00 claypool kernel: [ 3428.078156] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 Nov 18 22:22:00 claypool kernel: [ 3428.078163] ata3.00: irq_stat 0x40000000 Nov 18 22:22:00 claypool kernel: [ 3428.078167] sr 2:0:0:0: CDB: Test Unit Ready: 00 00 00 00 00 00 Nov 18 22:22:00 claypool kernel: [ 3428.078182] ata3.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0 Nov 18 22:22:00 claypool kernel: [ 3428.078184] res 50/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x1 (device error) Nov 18 22:22:00 claypool kernel: [ 3428.078188] ata3.00: status: { DRDY } Nov 18 22:22:00 claypool kernel: [ 3428.080887] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 Nov 18 22:22:00 claypool kernel: [ 3428.080890] ata3.00: irq_stat 0x40000000 Nov 18 22:22:00 claypool kernel: [ 3428.080893] sr 2:0:0:0: CDB: Test Unit Ready: 00 00 00 00 00 00 Nov 18 22:22:00 claypool kernel: [ 3428.080905] ata3.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0 Nov 18 22:22:00 claypool kernel: [ 3428.080906] res 50/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x1 (device error) Nov 18 22:22:00 claypool kernel: [ 3428.080910] ata3.00: status: { DRDY } And then this: Nov 18 23:13:56 claypool kernel: [ 6544.000798] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Nov 18 23:13:56 claypool kernel: [ 6544.000804] ata1.00: failed command: FLUSH CACHE EXT Nov 18 23:13:56 claypool kernel: [ 6544.000814] ata1.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0 Nov 18 23:13:56 claypool kernel: [ 6544.000815] res 40/00:00:00:4f:c2/00:00:00:00:00/40 Emask 0x4 (timeout) Nov 18 23:13:56 claypool kernel: [ 6544.000819] ata1.00: status: { DRDY } Nov 18 23:13:56 claypool kernel: [ 6544.000825] ata1: hard resetting link Nov 18 23:14:01 claypool kernel: [ 6549.360324] ata1: link is slow to respond, please be patient (ready=0) Nov 18 23:14:06 claypool kernel: [ 6554.008091] ata1: COMRESET failed (errno=-16) Nov 18 23:14:06 claypool kernel: [ 6554.008103] ata1: hard resetting link Nov 18 23:14:11 claypool kernel: [ 6559.372246] ata1: link is slow to respond, please be patient (ready=0) Nov 18 23:14:16 claypool kernel: [ 6564.020228] ata1: COMRESET failed (errno=-16) Nov 18 23:14:16 claypool kernel: [ 6564.020235] ata1: hard resetting link Nov 18 23:14:21 claypool kernel: [ 6569.380109] ata1: link is slow to respond, please be patient (ready=0) Nov 18 23:14:31 claypool kernel: [ 6579.460243] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Nov 18 23:14:31 claypool kernel: [ 6579.486595] ata1.00: configured for UDMA/133 Nov 18 23:14:31 claypool kernel: [ 6579.486601] ata1.00: retrying FLUSH 0xea Emask 0x4 Nov 18 23:14:31 claypool kernel: [ 6579.486939] ata1.00: device reported invalid CHS sector 0 Nov 18 23:14:31 claypool kernel: [ 6579.486952] ata1: EH complete Nov 18 23:17:01 claypool CRON[3910]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Nov 18 23:17:01 claypool CRON[3908]: (CRON) error (grandchild #3910 failed with exit status 1) Nov 18 23:17:01 claypool postfix/sendmail[3925]: fatal: open /etc/postfix/main.cf: No such file or directory Nov 18 23:17:01 claypool CRON[3908]: (root) MAIL (mailed 1 byte of output; but got status 0x004b, #012) Nov 18 23:39:01 claypool CRON[4200]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -n 200 -r -0 rm) There are no messages marked after 23:39. When I next tried to use the machine, it would not return from the screensaver (blank screen), nor switch to another terminal, and I had to hard reboot it. [UPDATE] The output of smartctl is here. I had trouble getting this, because / is being mounted read-only (?!), which prevents most applications from running. Also, it may not be related, but I have the following worrying messages in dmesg: [ 10.084596] k8temp 0000:00:18.3: Temperature readouts might be wrong - check erratum #141 [ 10.098477] i2c i2c-0: nForce2 SMBus adapter at 0x600 [ 10.098483] ACPI: resource nForce2_smbus [io 0x0700-0x073f] conflicts with ACPI region SM00 [??? 0x00000700-0x0000073f flags 0x30] [ 10.098486] ACPI: This conflict may cause random problems and system instability [ 10.098487] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 10.098509] i2c i2c-1: nForce2 SMBus adapter at 0x700 [ 10.112570] Linux agpgart interface v0.103 [ 10.155329] atk: Resources not safely usable due to acpi_enforce_resources kernel parameter [ 10.161506] it87: Found IT8712F chip at 0x290, revision 8 [ 10.161517] it87: VID is disabled (pins used for GPIO) [ 10.161527] it87: in3 is VCC (+5V) [ 10.161528] it87: in7 is VCCH (+5V Stand-By) [ 10.161560] ACPI: resource it87 [io 0x0295-0x0296] conflicts with ACPI region ECRE [??? 0x00000290-0x000002af flags 0x45] [ 10.161562] ACPI: This conflict may cause random problems and system instability [ 10.161564] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [UPDATE 2] I swapped in a new SATA cable, per Phil's suggestion. The current output of smartctl is here, if it helps. [UPDATE 3] I don't think the cable fixed it. The system hasn't locked up yet, but my media player crashed a few minutes ago and I have the following in the syslog: Nov 20 16:07:17 claypool kernel: [ 2294.400033] ata1: link is slow to respond, please be patient (ready=0) Nov 20 16:07:47 claypool kernel: [ 2324.084581] ata1: COMRESET failed (errno=-16) Nov 20 16:07:47 claypool kernel: [ 2324.084588] ata1: limiting SATA link speed to 1.5 Gbps Nov 20 16:07:47 claypool kernel: [ 2324.084592] ata1: hard resetting link I get the following response from smartctl: $ sudo smartctl -a /dev/sda [sudo] password for chris: sudo: Can't open /var/lib/sudo/chris/0: Read-only file system smartctl 5.40 2010-03-16 r3077 [i686-pc-linux-gnu] (local build) Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net Device: /0:0:0:0 Version: scsiModePageOffset: response length too short, resp_len=47 offset=50 bd_len=46 >> Terminate command early due to bad response to IEC mode page A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.

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• How to update coffee script?

  - by Tetsu

  I got a following error when I tried to watch coffee scripts by coffee -o js -cw coffee. /usr/local/lib/node_modules/coffee-script/lib/coffee-script/command.js:321 throw e; ^ Error: watch Unknown system errno 28 at errnoException (fs.js:636:11) at FSWatcher.start (fs.js:663:11) at Object.watch (fs.js:691:11) at /usr/local/lib/node_modules/coffee-script/lib/coffee-script/command.js:287:27 at Object.oncomplete (/usr/local/lib/node_modules/coffee-script/lib/coffee-script/command.js:100:11) I have no idea what is going with error. Then I checked the versions, coffee -v is 1.6.1 and node -v is v0.6.12. According the official site( http://coffeescript.org/ ) the latest version is 1.6.3, so I wanted update coffee by npm update -g coffee-script, but this fails also. npm WARN [email protected] package.json: bugs['name'] should probably be bugs['url'] npm http GET https://registry.npmjs.org/coffee-script npm http 304 https://registry.npmjs.org/coffee-script How can I update coffee script? Edit 2013/10/11 In my coffee script directory there is only one file box_wrapper.coffee. $ -> $("body").children().wrap -> "<div id='#{$(@).attr "id"}_box' class='wrapper'/>" Edit 2013/10/16 I tried to re-install coffee, so I've done like this. $ sudo npm -g rm coffee npm WARN Not installed in /usr/local/lib/node_modules coffee $ coffee -v CoffeeScript version 1.6.1 I can't remove coffee. And I tried also like this. $ sudo apt-get remove npm $ npm -v -bash: /usr/bin/npm: No such file or directory $ sudo apt-get install npm $ npm -v 1.1.4 $ sudo npm -g install coffee # I omit a lot of `GET` parts. npm http 304 https://registry.npmjs.org/mkdirp/0.3.4 npm ERR! error installing [email protected] npm http 304 https://registry.npmjs.org/assertion-error/1.0.0 npm http 304 https://registry.npmjs.org/growl npm http 304 https://registry.npmjs.org/jade/0.26.3 npm http 304 https://registry.npmjs.org/diff/1.0.2 npm http 304 https://registry.npmjs.org/mkdirp/0.3.5 npm http 304 https://registry.npmjs.org/glob/3.2.1 npm http 304 https://registry.npmjs.org/ms/0.3.0 npm ERR! error rolling back [email protected] Error: UNKNOWN, unknown error '/usr/local/lib/node_modules/coffee/node_modules/express' npm ERR! error installing [email protected] npm ERR! EEXIST, file already exists '/usr/local/lib/node_modules/coffee/node_modules/mocha/node_modules' npm ERR! File exists: /usr/local/lib/node_modules/coffee/node_modules/mocha/node_modules npm ERR! Move it away, and try again. npm ERR! npm ERR! System Linux 3.2.0-54-generic-pae npm ERR! command "node" "/usr/bin/npm" "-g" "install" "coffee" npm ERR! cwd /home/ironsand npm ERR! node -v v0.6.12 npm ERR! npm -v 1.1.4 npm ERR! path /usr/local/lib/node_modules/coffee/node_modules/mocha/node_modules npm ERR! fstream_path /usr/local/lib/node_modules/coffee/node_modules/mocha/node_modules/___debug.npm npm ERR! fstream_type Directory npm ERR! fstream_class DirWriter npm ERR! code EEXIST npm ERR! message EEXIST, file already exists '/usr/local/lib/node_modules/coffee/node_modules/mocha/node_modules' npm ERR! errno {} npm ERR! fstream_stack /usr/lib/nodejs/fstream/lib/writer.js:161:23 npm ERR! fstream_stack Object.oncomplete (/usr/lib/nodejs/mkdirp.js:34:53) npm ERR! EEXIST, file already exists '/usr/local/lib/node_modules/coffee/node_modules/mocha/node_modules' npm ERR! File exists: /usr/local/lib/node_modules/coffee/node_modules/mocha/node_modules npm ERR! Move it away, and try again. npm ERR! npm ERR! System Linux 3.2.0-54-generic-pae npm ERR! command "node" "/usr/bin/npm" "-g" "install" "coffee" npm ERR! cwd /home/ironsand npm ERR! node -v v0.6.12 npm ERR! npm -v 1.1.4 npm ERR! path /usr/local/lib/node_modules/coffee/node_modules/mocha/node_modules npm ERR! fstream_path /usr/local/lib/node_modules/coffee/node_modules/mocha/node_modules/___debug.npm npm ERR! fstream_type Directory npm ERR! fstream_class DirWriter npm ERR! code EEXIST npm ERR! message EEXIST, file already exists '/usr/local/lib/node_modules/coffee/node_modules/mocha/node_modules' npm ERR! errno {} npm ERR! fstream_stack /usr/lib/nodejs/fstream/lib/writer.js:161:23 npm ERR! fstream_stack Object.oncomplete (/usr/lib/nodejs/mkdirp.js:34:53) npm ERR! npm ERR! Additional logging details can be found in: npm ERR! /home/ironsand/npm-debug.log npm not ok And npm-debug.log is a blank file.

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• Resque Runtime Error at /workers: wrong number of arguments for 'exists' command

  - by Superflux

  I'm having a runtime errror when i'm looking at the "workers" tab on resque-web (localhost). Everything else works. Edit: when this error occurs, i also have some (3 or 4) unknown workers 'not working'. I think they are responsible for the error but i don't understand how they got here Can you help me on this ? Did i do something wrong ? Config: Resque 1.8.5 as a gem in a rails 2.3.8 app on Snow Leopard redis 1.0.7 / rack 1.1 / sinatra 1.0 / vegas 0.1.7 file: client.rb location: format_error_reply line: 558 BACKTRACE: * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in format_error_reply * 551. when DOLLAR then format_bulk_reply(line) 552. when ASTERISK then format_multi_bulk_reply(line) 553. else raise ProtocolError.new(reply_type) 554. end 555. end 556. 557. def format_error_reply(line) 558. raise "-" + line.strip 559. end 560. 561. def format_status_reply(line) 562. line.strip 563. end 564. 565. def format_integer_reply(line) * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in format_reply * 541. 542. def reconnect 543. disconnect && connect_to_server 544. end 545. 546. def format_reply(reply_type, line) 547. case reply_type 548. when MINUS then format_error_reply(line) 549. when PLUS then format_status_reply(line) 550. when COLON then format_integer_reply(line) 551. when DOLLAR then format_bulk_reply(line) 552. when ASTERISK then format_multi_bulk_reply(line) 553. else raise ProtocolError.new(reply_type) 554. end 555. end * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in read_reply * 478. disconnect 479. 480. raise Errno::EAGAIN, "Timeout reading from the socket" 481. end 482. 483. raise Errno::ECONNRESET, "Connection lost" unless reply_type 484. 485. format_reply(reply_type, @sock.gets) 486. end 487. 488. 489. if "".respond_to?(:bytesize) 490. def get_size(string) 491. string.bytesize 492. end * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in process_command * 448. return pipeline ? results : results[0] 449. end 450. 451. def process_command(command, argvv) 452. @sock.write(command) 453. argvv.map do |argv| 454. processor = REPLY_PROCESSOR[argv[0].to_s] 455. processor ? processor.call(read_reply) : read_reply 456. end 457. end 458. 459. def maybe_lock(&block) 460. if @thread_safe 461. @mutex.synchronize(&block) 462. else * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in map * 446. end 447. 448. return pipeline ? results : results[0] 449. end 450. 451. def process_command(command, argvv) 452. @sock.write(command) 453. argvv.map do |argv| 454. processor = REPLY_PROCESSOR[argv[0].to_s] 455. processor ? processor.call(read_reply) : read_reply 456. end 457. end 458. 459. def maybe_lock(&block) 460. if @thread_safe * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in process_command * 446. end 447. 448. return pipeline ? results : results[0] 449. end 450. 451. def process_command(command, argvv) 452. @sock.write(command) 453. argvv.map do |argv| 454. processor = REPLY_PROCESSOR[argv[0].to_s] 455. processor ? processor.call(read_reply) : read_reply 456. end 457. end 458. 459. def maybe_lock(&block) 460. if @thread_safe * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in raw_call_command * 435. @sock.write(command) 436. return true 437. end 438. # The normal command execution is reading and processing the reply. 439. results = maybe_lock do 440. begin 441. set_socket_timeout!(0) if requires_timeout_reset?(argvv[0][0].to_s) 442. process_command(command, argvv) 443. ensure 444. set_socket_timeout!(@timeout) if requires_timeout_reset?(argvv[0][0].to_s) 445. end 446. end 447. 448. return pipeline ? results : results[0] 449. end * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in synchronize * 454. processor = REPLY_PROCESSOR[argv[0].to_s] 455. processor ? processor.call(read_reply) : read_reply 456. end 457. end 458. 459. def maybe_lock(&block) 460. if @thread_safe 461. @mutex.synchronize(&block) 462. else 463. block.call 464. end 465. end 466. 467. def read_reply 468. * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in maybe_lock * 454. processor = REPLY_PROCESSOR[argv[0].to_s] 455. processor ? processor.call(read_reply) : read_reply 456. end 457. end 458. 459. def maybe_lock(&block) 460. if @thread_safe 461. @mutex.synchronize(&block) 462. else 463. block.call 464. end 465. end 466. 467. def read_reply 468. * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in raw_call_command * 432. end 433. # When in Pub/Sub mode we don't read replies synchronously. 434. if @pubsub 435. @sock.write(command) 436. return true 437. end 438. # The normal command execution is reading and processing the reply. 439. results = maybe_lock do 440. begin 441. set_socket_timeout!(0) if requires_timeout_reset?(argvv[0][0].to_s) 442. process_command(command, argvv) 443. ensure 444. set_socket_timeout!(@timeout) if requires_timeout_reset?(argvv[0][0].to_s) 445. end 446. end * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in call_command * 336. # try to reconnect just one time, otherwise let the error araise. 337. def call_command(argv) 338. log(argv.inspect, :debug) 339. 340. connect_to_server unless connected? 341. 342. begin 343. raw_call_command(argv.dup) 344. rescue Errno::ECONNRESET, Errno::EPIPE, Errno::ECONNABORTED 345. if reconnect 346. raw_call_command(argv.dup) 347. else 348. raise Errno::ECONNRESET 349. end 350. end * /Library/Ruby/Gems/1.8/gems/redis-1.0.7/lib/redis/client.rb in method_missing * 385. connect_to(@host, @port) 386. call_command([:auth, @password]) if @password 387. call_command([:select, @db]) if @db != 0 388. @sock 389. end 390. 391. def method_missing(*argv) 392. call_command(argv) 393. end 394. 395. def raw_call_command(argvp) 396. if argvp[0].is_a?(Array) 397. argvv = argvp 398. pipeline = true 399. else * /Library/Ruby/Gems/1.8/gems/redis-namespace-0.4.4/lib/redis/namespace.rb in send * 159. args = add_namespace(args) 160. args.push(last) if last 161. when :alternate 162. args = [ add_namespace(Hash[*args]) ] 163. end 164. 165. # Dispatch the command to Redis and store the result. 166. result = @redis.send(command, *args, &block) 167. 168. # Remove the namespace from results that are keys. 169. result = rem_namespace(result) if after == :all 170. 171. result 172. end 173. * /Library/Ruby/Gems/1.8/gems/redis-namespace-0.4.4/lib/redis/namespace.rb in method_missing * 159. args = add_namespace(args) 160. args.push(last) if last 161. when :alternate 162. args = [ add_namespace(Hash[*args]) ] 163. end 164. 165. # Dispatch the command to Redis and store the result. 166. result = @redis.send(command, *args, &block) 167. 168. # Remove the namespace from results that are keys. 169. result = rem_namespace(result) if after == :all 170. 171. result 172. end 173. * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/worker.rb in state * 416. def idle? 417. state == :idle 418. end 419. 420. # Returns a symbol representing the current worker state, 421. # which can be either :working or :idle 422. def state 423. redis.exists("worker:#{self}") ? :working : :idle 424. end 425. 426. # Is this worker the same as another worker? 427. def ==(other) 428. to_s == other.to_s 429. end 430. * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/server/views/workers.erb in __tilt_a2112543c5200dbe0635da5124b47311 * 46. <tr> 47. <th>&nbsp;</th> 48. <th>Where</th> 49. <th>Queues</th> 50. <th>Processing</th> 51. </tr> 52. <% for worker in (workers = resque.workers.sort_by { |w| w.to_s }) %> 53. <tr class="<%=state = worker.state%>"> 54. <td class='icon'><img src="<%=u state %>.png" alt="<%= state %>" title="<%= state %>"></td> 55. 56. <% host, pid, queues = worker.to_s.split(':') %> 57. <td class='where'><a href="<%=u "workers/#{worker}"%>"><%= host %>:<%= pid %></a></td> 58. <td class='queues'><%= queues.split(',').map { |q| '<a class="queue-tag" href="' + u("/queues/#{q}") + '">' + q + '</a>'}.join('') %></td> 59. 60. <td class='process'> * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/server/views/workers.erb in each * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/server/views/workers.erb in __tilt_a2112543c5200dbe0635da5124b47311 * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/tilt.rb in send * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/tilt.rb in evaluate * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/tilt.rb in render * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in render * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in erb * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/server.rb in show * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/lib/resque/server.rb in GET /workers * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in route * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in instance_eval * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in route_eval * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in route! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in catch * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in route! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in each * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in route! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in dispatch! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in instance_eval * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in invoke * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in catch * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in invoke * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call! * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call * /Volumes/Donnees/Users/**/.gem/ruby/1.8/gems/rack-1.1.0/lib/rack/showexceptions.rb in call * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in synchronize * /Library/Ruby/Gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb in call * /Volumes/Donnees/Users/**/.gem/ruby/1.8/gems/rack-1.1.0/lib/rack/content_length.rb in call * /Volumes/Donnees/Users/**/.gem/ruby/1.8/gems/rack-1.1.0/lib/rack/chunked.rb in call * /Volumes/Donnees/Users/**/.gem/ruby/1.8/gems/rack-1.1.0/lib/rack/handler/mongrel.rb in process * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in process_client * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in each * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in process_client * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in run * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in initialize * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in new * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in run * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in initialize * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in new * /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb in run * /Volumes/Donnees/Users/**/.gem/ruby/1.8/gems/rack-1.1.0/lib/rack/handler/mongrel.rb in run * /Library/Ruby/Gems/1.8/gems/vegas-0.1.7/lib/vegas/runner.rb in run! * /Library/Ruby/Gems/1.8/gems/vegas-0.1.7/lib/vegas/runner.rb in start * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/bin/resque-web in new * /Library/Ruby/Gems/1.8/gems/resque-1.8.5/bin/resque-web in nil * /usr/bin/resque-web in load

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• Paypal IPN Handler for Cart

  - by kimmothy16

  Hey everyone! I'm using a Paypal add to cart button for a simple ecommerce website. I had a Paypal IPN handler written in PHP that was successfully working for 'Buy it Now' buttons and purchasing one item at a time. I would run a database query each time to update the store's inventory to reflect the purchase. Now I'm upgrading this store to a 'cart' version so people could check out with multiple items at a time. Would anyone be able to tell me, in general, how my IPN handler would need to be altered to accommodate this? I'm unsure of what a response from Paypal looks like for a cart purchase as opposed to a buy it now purchase. Thanks, any help or examples of working IPN cart scripts would be very appreciated! My current code is below.. // Paypal POSTs HTML FORM variables to this page // we must post all the variables back to paypal exactly unchanged and add an extra parameter cmd with value _notify-validate // initialise a variable with the requried cmd parameter $req = 'cmd=_notify-validate'; // go through each of the POSTed vars and add them to the variable foreach ($_POST as $key => $value) { $value = urlencode(stripslashes($value)); $req .= "&$key=$value"; } // post back to PayPal system to validate $header .= "POST /cgi-bin/webscr HTTP/1.0\r\n"; $header .= "Content-Type: application/x-www-form-urlencoded\r\n"; $header .= "Content-Length: " . strlen($req) . "\r\n\r\n"; // In a live application send it back to www.paypal.com // but during development you will want to uswe the paypal sandbox // comment out one of the following lines $fp = fsockopen ('www.sandbox.paypal.com', 80, $errno, $errstr, 30); //$fp = fsockopen ('www.paypal.com', 80, $errno, $errstr, 30); // or use port 443 for an SSL connection //$fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30); if (!$fp) { // HTTP ERROR } else { fputs ($fp, $header . $req); while (!feof($fp)) { $res = fgets ($fp, 1024); if (strcmp ($res, "VERIFIED") == 0) { $item_name = stripslashes($_POST['item_name']); $item_number = $_POST['item_number']; $item_id = $_POST['custom']; $payment_status = $_POST['payment_status']; $payment_amount = $_POST['mc_gross']; //full amount of payment. payment_gross in US $payment_currency = $_POST['mc_currency']; $txn_id = $_POST['txn_id']; //unique transaction id $receiver_email = $_POST['receiver_email']; $payer_email = $_POST['payer_email']; $size = $_POST['option_selection1']; $item_id = $_POST['item_id']; $business = $_POST['business']; if ($payment_status == 'Completed') { // UPDATE THE DATABASE }

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• startx doesnt run gives an error xauth unable to link authority files

  - by Sandeep

  I have installed windows xp on VPC and have installed cygwin-x on that virtual machine. When i run startx command. I get the following error: xauth: creating new authority file /home/Administrator/.serverauth.1480 xauth: unable to link authority file /home/Administrator/.serverauth.1480, use /home/Administrator/.serverauth.1480-n xauth: creating new authority file /home/Administrator/.Xauthority xauth: creating new authority file /home/Administrator/.Xauthority xauth: unable to link authority file /home/Administrator/.Xauthority, use /home /Administrator/.Xauthority-n xauth: creating new authority file /home/Administrator/.Xauthority xauth: creating new authority file /home/Administrator/.Xauthority xauth: unable to link authority file /home/Administrator/.Xauthority, use /home /Administrator/.Xauthority-n giving up. xinit: No such file or directory (errno 2): unable to connect to X server xinit: No such process (errno 3): Server error. xauth: creating new authority file /home/Administrator/.Xauthority

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• Why can't I get Python's urlopen() method to work?

  - by froadie

  Why isn't this simple Python code working? import urllib file = urllib.urlopen('http://www.google.com') print file.read() This is the error that I get: Traceback (most recent call last): File "C:\workspace\GarchUpdate\src\Practice.py", line 26, in <module> file = urllib.urlopen('http://www.google.com') File "C:\Python26\lib\urllib.py", line 87, in urlopen return opener.open(url) File "C:\Python26\lib\urllib.py", line 206, in open return getattr(self, name)(url) File "C:\Python26\lib\urllib.py", line 345, in open_http h.endheaders() File "C:\Python26\lib\httplib.py", line 892, in endheaders self._send_output() File "C:\Python26\lib\httplib.py", line 764, in _send_output self.send(msg) File "C:\Python26\lib\httplib.py", line 723, in send self.connect() File "C:\Python26\lib\httplib.py", line 704, in connect self.timeout) File "C:\Python26\lib\socket.py", line 514, in create_connection raise error, msg IOError: [Errno socket error] [Errno 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond I've tried it with several different pages but I can never get the urlopen method to execute correctly.

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• ptrace'ing of parent process

  - by osgx

  Hello Can child process use the ptrace system call to trace its parent? Os is linux 2.6 Thanks. upd1: I want to trace process1 from "itself". It is impossible, so I do fork and try to do ptrace(process1_pid, PTRACE_ATTACH) from child process. But I can't, there is a strange error, like kernel prohibits child from tracing their parent processes UPD2: such tracing can be prohibited by security policies. Which polices do this? Where is the checking code in the kernel? UPD3: on my embedded linux I have no errors with PEEKDATA, but not with GETREGS: child: getregs parent: -1 errno is 1, strerror is Operation not permitted errno = EPERM

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• Getting Bad file descriptor when running Tornado AsyncHTTPTestCase

  - by Will

  When running a test using the Tornado AsyncHTTPTestCase I'm getting a stack trace that isn't related to the test. The test is passing so this is probably happening on the test clean up? I'm using Python 2.7.2, Tornado 2.2. The test code is: class AllServersHandlerTest(AsyncHTTPTestCase): endpoint = AllServersHandler.endpoint # '/rest/test/' def test_server_status_with_advertiser(self): on_new_host(None, '127.0.0.1') response = self.fetch(self.endpoint, method='GET') result = json.loads(response.body, 'utf8').get('data') self.assertEquals(['127.0.0.1'], result) The test passes ok, but I get the following stack trace from the Tornado server. OSError: [Errno 9] Bad file descriptor INFO:root:200 POST /rest/serverStatuses (127.0.0.1) 0.00ms DEBUG:root:error closing fd 688 Traceback (most recent call last): File "C:\Python27\Lib\site-packages\tornado-2.2-py2.7.egg\tornado\ioloop.py", line 173, in close os.close(fd) OSError: [Errno 9] Bad file descriptor Any ideas how to cleanly shutdown the test case?

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