Re: 2.6.9-rc4-bk2 bug report
From: Nigel Kukard
Date: Sun Oct 17 2004 - 04:44:48 EST
Andrew Morton wrote:
While booting with 2.6.9rc4-bk2 I seem to get the below OOPS, I copied
the modules & System.map file over to another box of mine where i used
serial-console to grab the oops.
Could it be caused by loading a module?
Yes. Or by unloading a module. The oops will happen some time _after_ the
buggy module has done its buggy thing. Maybe you could change your
modprobe command to be:
echo running modprobe $*
modprobe.old $*
sleep 5
echo finished modprobe $*
or something like that.
Ok, it seems to be related to specific hardware. I tried loading the
exact same modules on another box in the exact same order, no crash. The
box is actually running nicely.
I'm busy compiling the kernel again, this time with a few debug options
ticked.
As far as I saw 2 days ago, its when I load uhci-hcd that the problem
manifests itself... this is the order the modules are loaded in...
snd, snd_als4000, crc32, sis900, psmouse, evdev, tsdev, agpgart,
sis_agp, pci_hotplug, usbcore, ohci_hcd, ub, ehci_hcd, ieee1394,
ohci1394, uhci_hcd
The OOPS is triggered from loading uhci_hcd, so it could be ohci1394
that creates the corruption. I've had problems with ohci1394 in 26.8.1
aswell, I cannot load it, unload it, and reload it... generates a D
state for the modprobe.
Any tips on how i can track down the offending line in source?
Regards
Nigel Kukard
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