if there are multiple kernel module can drive the same device, what is the rule to choose from them?

Posted by Dyno Fu on Server Fault See other posts from Server Fault or by Dyno Fu
Published on 2010-03-07T15:32:02Z Indexed on 2010/03/08 10:08 UTC
Read the original article Hit count: 298

Filed under:

kernel

|

module

both pcnet32 and vmxnet can drive the device.

$ lspci -k
...
02:01.0 Ethernet controller: Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE] (rev 10)
    Subsystem: Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
    Flags: bus master, medium devsel, latency 64, IRQ 19
    I/O ports at 2000 [size=128]
    [virtual] Expansion ROM at dc400000 [disabled] [size=64K]
    Kernel driver in use: vmxnet
    Kernel modules: vmxnet, pcnet32

both kernel modules are loaded,

$ lsmod | grep net
pcnet32                32644  0 
vmxnet                 17696  0 
mii                     5212  1 pcnet32

as you see, kernel driver in use is vmxnet. is there any policy/algorithm in kernel how to choose from the candidates?

© Server Fault or respective owner

Related posts about kernel

Can't install kernel-uek-headers for currently running kernel

as seen on Server Fault - Search for 'Server Fault'
I have just created a VM in VMWare and installed a minimal install of Oracle Enterprise Linux 6.3. # cat /etc/oracle-release Oracle Linux Server release 6.3 It is running with the UEK kernel. # uname -r 2.6.39-200.24.1.el6uek.x86_64 When I try and install VMWare Tools, I get the following error… >>> More
Why does my laptop resume immediately after suspend?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I seem to be having some problem with suspend mode. Every time I try to suspend my laptop, it just locks the screen. Or maybe it successfully suspends just to resume only an instant after. What could cause such a behaviour? I'm running 32-bit Ubuntu 12.04 with the 3.2.0-25 kernel on a HP dv5-1178er… >>> More
Fedora error log file

as seen on Server Fault - Search for 'Server Fault'
I am running a java application using this wrapper service yajsw. The problem it just stopped without any error in its logs file. So I was wondering will there be any system log file which will indicate the cause of it going down? Partial of the log file. Apr 6 00:12:20 localhost kernel: imklog… >>> More
External USB drive is failing

as seen on Super User - Search for 'Super User'
I have an external USB 2.0 drive WD My Book Mirror Edition, running in RAID 1 (mirroring) mode. A while ago the hard drive started to fail: it stops responding (directories are not listed returning an error after a big timeout). Sometimes it works for weeks before a failure, sometimes – few hours… >>> More
Problem with RAID5 (mdadm) - disk detached

as seen on Server Fault - Search for 'Server Fault'
Having these lines in /var/log/syslog Apr 18 16:53:05 Server kernel: [4487878.816036] ata4: EH in SWNCQ mode,QC:qc_active 0x1 sactive 0x1 Apr 18 16:53:05 Server kernel: [4487878.816058] ata4: SWNCQ:qc_active 0x1 defer_bits 0x0 last_issue_tag 0x0 Apr 18 16:53:05 Server kernel: [4487878… >>> More

Related posts about module

E: Sub-process /usr/bin/dpkg returned an error code (1) seems to be choking on kde-runtime-data version issue

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
12.04 LTS, on a dell mini 10. Install stable until about a week ago. Updated about 1x a week, sometimes more often. Several days ago, I booted up and the system was no longer working correctly. All these symptoms occurred simultaneously: Cannot run (exit on opening, every time): Update manager, software… >>> More
Pulseaudio is no longer working in Debian Squeeze: 'Failed to open module "module-combine-sink": file not found'

as seen on Super User - Search for 'Super User'
I'm having a problem with pulseaudio. My machine crashed, and when I rebooted and ran pavucontrol, I got a "Connection Failed: Connection refused" dialog. When I run pulseaudio --log-level=info --log-target=stderr from the command line, I get the following output: [...] I: alsa-util.c: Error opening… >>> More
Can't join OS X Mavericks to AD Domain

as seen on Server Fault - Search for 'Server Fault'
I'm attempting to join an OS X Mavericks (10.9) client to a Windows Server 2008 Active Directory domain, however the bind fails with this error in the OS X client's system.log: Oct 24 15:03:15 host.domain.com com.apple.preferences.users.remoteservice[5547]: -[ODCAddServerSheetController handleOtherActionError:… >>> More
Plone: Creating new Page fails "AttributeError: 'str' object has no attribute 'dates'"

as seen on Stack Overflow - Search for 'Stack Overflow'
I just installed Plone on my Centos 5.5. I was able login via the admin-account and create new users. But when I try to create a new page I get the following error message: Traceback (innermost last): Module ZPublisher.Publish, line 127, in publish Module ZPublisher.mapply, line 77, in mapply Module… >>> More
Can't start HTTPD

as seen on Server Fault - Search for 'Server Fault'
I'm trying to start httpd, but it only gives me '[FAILED]'. Now, I installed exim, but that didn't worked, so I uninstalled it. But then the web server didn't worked any more! I tried to /etc/init.d/httpd start, but that gives '[FAILED]' without a reason. What can I do to get it started? httpd -e… >>> More