sleeping thread panic?

Michael Butler imb at protected-networks.net
Sun Jul 8 16:57:44 UTC 2012


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On 07/08/12 11:18, Michael Butler wrote:
> On 07/08/12 10:31, Konstantin Belousov wrote:
>> Catch it next time ? This should be quite reproducable, if real.
> 
>> Actually, try this.
> 
>> diff --git a/sys/vm/vm_pageout.c b/sys/vm/vm_pageout.c
>> index 9485fdd..de33afc 100644
>> --- a/sys/vm/vm_pageout.c
>> +++ b/sys/vm/vm_pageout.c
>> @@ -1030,7 +1030,6 @@ rescan0:
>>  					++pageout_lock_miss;
>>  					if (object->flags & OBJ_MIGHTBEDIRTY)
>>  						vnodes_skipped++;
>> -					vm_page_lock_queues();
>>  					goto unlock_and_continue;

 [ .. snip .. ]

> Just waiting for the second of two attached RAID arrays to finish
> rebuilding and I'll give this a shot - thanks!

I repeated the dumps from last night over NFS with this patch installed
and no more panics :-)

	imb

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