Ubuntu
linux-source-2.6.15 package

Kernel panic with Dapper kernel on Acer Ferrari 4005 (panic attached)

Bug #66966 reported by Brian Downing
2
Affects Status Importance Assigned to Milestone
linux-source-2.6.15 (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

Binary package hint: linux-image-2.6.15-27-amd64-k8

After installing Dapper I've started having a kernel panic every day or two. I did not have these problems with Breezy.

I finally managed to get netconsole working so I could get a dump of the panic. I'll attach it to this bug.

Note that I do have ndiswrapper loaded here for my wireless card (the bcm43xx module is non-functional for mine), but I will try to reproduce the crash with a non-tainted kernel. However, it looks like the bug is probably in (or at least triggered by) the atiixp ATA/IDE driver.

Thanks,
-bcd

Revision history for this message
Brian Downing (bd-launchpad) wrote :

Here's the panic.

Revision history for this message
Brian Downing (bd-launchpad) wrote :

And here's an untainted panic - same crash site.

Revision history for this message
Brian Downing (bd-launchpad) wrote :

Some more information:

I'm trying to see if this will happen after having turned off DMA on the affected device at bootup by running "hdparm -d 0 /dev/hdc". Note that I didn't have these crashes in Breezy, and I was manually enabling DMA for my CD-ROM there. (In 2.6.12 DMA did not come up by default for CD-ROMs on this controller.)

There seems to be no pattern to when it happens, nor is it induced by any user input. I have successfully read and burned DVDs with DMA on without problems.

Revision history for this message
Brian Downing (bd-launchpad) wrote :

Okay, with DMA on hdc disabled shortly after boot I've now seen some of the IDE errors happen without crashing the box. That's nice, but these are still new in Dapper as far as I know. The drive seemed to work fine (in DMA mode) in Breezy.

I'm loathe to move to a different kernel, because this one is the only kernel I've seen so far that does both suspend and hibernate correctly on this machine! But not being able to use my CD drive in UDMA mode renders it basically useless.

Well, hope this helps somehow.

Revision history for this message
Gareth Fitzworthington (mapping-gp-deactivatedaccount) wrote :

This bug has had no activity for a considerable period. This is a check to see if there is still interest in investigating this bug report.

Changed in linux-source-2.6.15:
status: New → Incomplete
Revision history for this message
Gareth Fitzworthington (mapping-gp-deactivatedaccount) wrote :

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!

Changed in linux-source-2.6.15:
status: Incomplete → Invalid
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