[OpenAFS] kernel 5.14 RIP with openafs 1.8.8

Michael La lass@mail.upb.de
Wed, 06 Oct 2021 09:49:47 +0200


[reposting from correct mail address and with small change]

Hi,

it looks like people using Arch Linux get this error as well after
updating to 5.14 [previously I wrote 5.14.9 but the reporter upgraded
from 5.13 so it could be any subversion]. Here is a bug report:

https://bugs.archlinux.org/task/72340

And here is a direct link to the reporter's crash log:
https://bugs.archlinux.org/task/72340?getfile=20754

So the error as well is:
> Okt 04 09:18:48  kernel: Code: Unable to access opcode bytes at RIP
> 0xffffffffffffffd6.

The call trace looks is also basically identical:
> Okt 04 09:18:48  kernel: Call Trace:
> Okt 04 09:18:48  kernel:  filemap_page_mkwrite+0xdf/0x190
> Okt 04 09:18:48  kernel:  do_page_mkwrite+0x55/0xb0
> Okt 04 09:18:48  kernel:  do_wp_page+0x22b/0x2d0
> Okt 04 09:18:48  kernel:  ? cp_new_stat+0x134/0x160
> Okt 04 09:18:48  kernel:  __handle_mm_fault+0xd45/0x15c0
> Okt 04 09:18:48  kernel:  handle_mm_fault+0xd5/0x2a0
> Okt 04 09:18:48  kernel:  do_user_addr_fault+0x1de/0x690
> Okt 04 09:18:48  kernel:  exc_page_fault+0x72/0x170
> Okt 04 09:18:48  kernel:  ? asm_exc_page_fault+0x8/0x30
> Okt 04 09:18:48  kernel:  asm_exc_page_fault+0x1e/0x30

Best,
Michael

Am Montag, dem 04.10.2021 um 14:29 +0000 schrieb Mark Vitale:
> Andrej,
> 
> > On Oct 4, 2021, at 5:47 AM, Andrej Filipcic
> > <Andrej.Filipcic@ijs.si>
> > wrote:
> > 
> > I tried kernel 5.14.9 and openafs 1.8.8. It fails just after login
> > with
> > 
> > <snip>
> > 
> > any clues or patches?
> > 
> > 
> I consulted with a colleague and we haven't seen a failure like
> this. 
> The backtrace doesn't contain any AFS code either, so no clues
> there. 
> Is it possible your OpenAFS kernel module wasn't rebuilt for this
> kernel?  (mismatched kernel version)
> 
> 
> Regards,
> --
> Mark Vitale
> mvitale@sinenomine.net
> 
> 
> 
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