Re: 2.6.13.2 crash on shutdown on SMP machine

From: Clemens Koller
Date: Thu Dec 08 2005 - 09:09:02 EST


Hello, Zwane!

Zwane Mwaikambo wrote:
From what i hear it's this issue;

http://bugzilla.kernel.org/show_bug.cgi?id=5203

Yes it seems to be the same issue.
But who is Eric, mentioned in bugzilla? :-]
If it makes sense I can test his patch while/before he is pushing
it upstream.


Eric is 'Eric Biederman', Jeff tested his patch but there appears to be a failure case when there is no power management callback installed. Could you please test the following patch?

Thanks again for the support. Yesterday night, I've checked your patch with the
latest git snapshot (2.6.15-rc5-ge4f5c82a), but it doesn't fix the bug(s) for.

2.6.15-rc5-ge4f5c82a unpatched showes up with:
[...cut due to out of screen...]
try_to_wake_up
__wake_up_common
__wake_up
__queue_work
call_usermodehelper_keys
__call_usermodehelper
kobject_hotplug
class_device_del
...

2.6.15-rc5-ge4f5c82a with your patch crashes differently:
[...cut due to out of screen...]
send_IPI_mask_bitmask
smp_send_reschedule
try_to_wake_up
__wake_up_common
__wake_up_sync
do_notify_parent
....

or: exactly the same patched kernel but at a later time with a different crash:
Badness in send_IPI_mask_bitmask at arch/i386/kernel/smp.c:167
send_IPI_mask_bitmask
smp_send_reschedule
__migrate_task
migration_thread
migration_thread
kthread
kthread
kernel_thread_helper

The attachments are three .gif images of the screen snapshots
of the above error messages (just some more details).

Any ideas?

Greets,
--
Clemens Koller
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