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Old 11-22-2011, 12:44 PM
Sam Morris
 
Default Bug#649534: Kernel panic while doing nothing much in particular, after hibernating twice and suspending once

On Mon, 2011-11-21 at 17:47 -0600, Jonathan Nieder wrote:
> Sam Morris wrote:
>
> > here's the info that appeared in syslog:
>
> No backtrace?

The backtrace definitely didn't make it to syslog. It did appear on the
screen however; photo attached.


--
Sam Morris <sam@robots.org.uk>
 
Old 11-22-2011, 08:02 PM
Jonathan Nieder
 
Default Bug#649534: Kernel panic while doing nothing much in particular, after hibernating twice and suspending once

Sam Morris wrote:

> The backtrace definitely didn't make it to syslog. It did appear on the
> screen however; photo attached.

Thanks. Here's the call chain:

system_call_fastpath -> sys_pipe2 -> do_pipe_flags ->
create_write_pipe -> recalc_sigpending ->
new_inode_pseudo -> alloc_inode -> kmem_cache_alloc ->
____cache_alloc

The NULL pointer dereference is at list_del+0x1b/0x2a.

Code: 24 e8 df ff ff ff 48 8b 04 24 5a c3 0f 18 0f c3 48 0b 17 48 8b 47 08 48 b9 00 01 10 00 00 00 ad de 48 be 00 02 20 00 00 00 ad dc
89 42 08 48 89 10 40 89 0f 48 89 77 08 c3 48 8b 07 40 89 c2

Some of the 8s might be 0s and vice versa, etc. RIP doesn't seem to
be marked.

Is this reproducible?



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Old 03-30-2012, 06:12 PM
Jonathan Nieder
 
Default Bug#649534: Kernel panic while doing nothing much in particular, after hibernating twice and suspending once

tags 649534 + patch moreinfo
quit

Hi Sam,

Sam Morris wrote:

> Booted computer (Samsung Q45), hibernated, booted back up, suspended,
> booted back up, hibernated again, booted back up... a few minutes later
> it panicked.

There's a patch to try at [1] if you'd like one.

Thanks for your work,
Jonathan

[1] http://bugs.debian.org/645547#26



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