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jamesm
n00b
Joined: 13 Jun 2003
Posts: 22
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 Posted: Fri Mar 19, 2004 12:09 am Post subject: 2.6.4 Strange Modules Problem |
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Hi,
I've upgraded to kernel 2.6.4 (from 2.6.3), both 'plain' sources from kernel.org and I'm having strange problems with my modules.
When the machine boots, all the modules load okay. But some of the devices that are created by those modules arent appearing in the /dev (udev controlled) until I rmmod <module>, modprobe <module>.
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jamesm@gauntlet jamesm $ lsmod
Module Size Used by
intel_agp 16412 1
agpgart 27052 2 intel_agp
evdev 9088 0
nvidia 2072520 14
ide_cd 37380 0
cdrom 35740 1 ide_cd
cryptoloop 4096 0
loop 13448 1 cryptoloop
rtc 12616 0
i2o_core 43632 0
b44 20868 0
hid 34312 0
uhci_hcd 31376 0
ehci_hcd 24708 0
jamesm@gauntlet jamesm $
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Initially it was the nvidia driver doing this. I modified /etc/init.d/xdm script so that it would remove and reload the nvidia module when the xdm_setup function was called, and it worked well.
Now though, it is the ide-cd module that isn't working properly; when the machine has fully booted, there is no /dev/hdc entry.
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cdrecord dev=ATAPI -scanbus
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returns no devices found.
If I,
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rmmod cdrom
rmmod ide-cd
insmod ide-cd
insmod cdrom
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Everything starts to work!
My grub.conf has the kernel line as:
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kernel (hd0,1)/boot/bzImage-2.6.4 root=/dev/hda9 hdc=ide-cd gentoo=nodevfs vga=794 vesa:ywrap,mtrr
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and dmesg does find the DVD+RW:
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hda: FUJITSU MHS2060AT, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hdc: PHILIPS DVD+RW SDVD6004, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
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Later into the boot sequence, the following appears:
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hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 8192kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
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So... anyone have any suggestions? |
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foton2
Guru
Joined: 23 Feb 2004
Posts: 347
Location: Prague, Czech Republick
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| Posted: Fri Mar 19, 2004 1:32 am Post subject: |
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| Why don't you use devfs ? Do you use udev ? Dou you have it configured ? |
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jamesm
n00b
Joined: 13 Jun 2003
Posts: 22
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| Posted: Fri Mar 19, 2004 12:26 pm Post subject: |
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| foton2 wrote: | | Why don't you use devfs ? Do you use udev ? Dou you have it configured ? |
Oops, think I forgot to mention that 
Yep, I'm using udev, and it is working well for all of my other devices (USB mice, mass storage) etc.
And it has been working in the past for the DVD+RW. With the new kernel its stopped working. (But the nvidia module is now working fine..)
Strange  |
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dhunt
n00b
Joined: 11 Oct 2003
Posts: 46
Location: New Zealand
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| Posted: Mon Mar 22, 2004 3:34 am Post subject: |
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Yeah I've got the same problem with the nvidia driver using 2.6.4 with udev. Having to unload it then reload it to get the devices created.
Let me know if you find any answers
David |
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jamesm
n00b
Joined: 13 Jun 2003
Posts: 22
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| Posted: Mon Mar 22, 2004 3:58 am Post subject: |
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| dhunt wrote: | Yeah I've got the same problem with the nvidia driver using 2.6.4 with udev. Having to unload it then reload it to get the devices created.
Let me know if you find any answers
David |
Well.. after some fiddling, I've found that doing a
at seemingly random times makes things work. Its not really random I guess, everytime I notice this problem occuring, I log in and do a modules-update, reboot and almost like magic things are happy again.
Very Strange! |
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greml!n
Apprentice
Joined: 29 Mar 2003
Posts: 159
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| Posted: Thu Mar 25, 2004 1:18 am Post subject: |
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| I'm seeing the exact same problems for my printer and cdrw via scsi. It seems like there is a disconnect between when udev is operating and when the modules are loaded. Anyone? Anyone? Bueller? |
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abergou
Tux's lil' helper
Joined: 12 Jun 2002
Posts: 85
Location: Ithaca, NY
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| Posted: Fri Mar 26, 2004 5:16 pm Post subject: |
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| I am having the same problem. Does anyone have any ideas? Previously it used to work if I at least added the modules to autoload. I read in another thread that several people were having this problem does anyone have any ideas? Thanks! |
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kongit
n00b
Joined: 26 Mar 2004
Posts: 35
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| Posted: Fri Mar 26, 2004 8:42 pm Post subject: |
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do you get any errors when doing make modules_install ?
I am new to gentoo and I remember having to install a new set of module utils in order to get modules with 2.6 to work right. But maybe gentoo already has the newer ones.
you could of course trick your system by doing the rmmod then insmod in some very late occuring init script. |
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abergou
Tux's lil' helper
Joined: 12 Jun 2002
Posts: 85
Location: Ithaca, NY
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| Posted: Fri Mar 26, 2004 8:45 pm Post subject: |
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| Yep I have the new set of module init scripts. Screwed up a bit there too initially since I had both installed for a while (one should really block the other!) and when I unmerged the old it borked the new one. In either case that's the not problem. Yeah that's a nice hack to insmod in a late init script, but it is a hack -- I thought that udev was supposed to take care of this. |
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kongit
n00b
Joined: 26 Mar 2004
Posts: 35
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| Posted: Fri Mar 26, 2004 8:52 pm Post subject: |
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I finally gave up on using usb modules and just compiled them into the kernel. I haven't been able to get my printer to work. but that is because lexmark is crazy and I am going to have to do some hardcore editting of their "close-sourced" driver. Alien is a wonderful tool  |
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