Re: -bk15 oops on mounting cdrom

From: Sid Boyce
Date: Wed Sep 08 2004 - 16:34:34 EST


Tonnerre wrote:

Salut,

On Wed, Sep 08, 2004 at 04:45:57PM +0100, Sid Boyce wrote:


Modules linked in: nls_iso8859_1 nvidia parport_pc lp parport sg st sd_mod sr_mod scsi_mod thermal snd_seq_oss snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss sk98lin snd_intel8x0 processor ub usblp fan usbhid snd_ac97_codec snd_pcm snd_timer snd_page_alloc gameport snd_mpu 401_uart snd_rawmidi snd_seq_device snd button ipv6 soundcore ohci1394 ieee1394 ehci_hcd nvidia_agp agpgart ohci_hcd evdev usbcore forcedeth vfat fat dm_mod
0060:[cache_free_debugcheck+385/640] Tainted: P VLI



You may want to reproduce that bug without the nvidia module
loaded. This doesn't sound like much, but I even had strange problems
after registering a simple webcam to the kernel which kept it crashing
while accessing data structures that have clearly been there before
(but yet it claimed that the memory address wasn't assigned). It
turned out that my customer had the NVidia module loaded. Once he
unloaded it, everything was running fine.

So please consider a clean boot without ever loading nvidia, and try
to reproduce the bug.

Tonnerre


It's repeatable under anything other than 2.6.8-rc4-mm1, the earliest kernel I have here. As a test, I attached another cdrom as hdd and got the same oops under 2.6.9-rc1-bk15, same problem and as far as I can tell anything from 2.6.8.1 onwards gives the same fault.
Now running under 2.6.8-rc4-mm1 without problems, so it looks like a kernel bug.
barrabas:/ftp/sep04 # ls /media/dvd
. autorun.inf content COPYING.de directory.yast gpg-pubkey-3d25d3d9-36e12d04.asc LIESMICH media.1 README.DOS
.. boot control.xml COPYRIGHT docu gpg-pubkey-9c800aca-39eef481.asc LIESMICH.DOS pubring.gpg suse
ARCHIVES.gz ChangeLog COPYING COPYRIGHT.de dosutils INDEX.gz ls-lR.gz README SuSEgo.ico
barrabas:/ftp/sep04 # ls /media/dvd/suse
. .. i586 i686 noarch setup

Regards
Sid.

--
Sid Boyce .... Hamradio G3VBV and keen Flyer
=====LINUX ONLY USED HERE=====

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