Re: sleeping thread panic?

From: Michael Butler <imb_at_protected-networks.net>
Date: Sun, 08 Jul 2012 12:57:39 -0400
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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
>> _at__at_ -1030,7 +1030,6 _at__at_ 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

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (FreeBSD)

iEYEARECAAYFAk/5vAMACgkQQv9rrgRC1JJtPACgnyrSlf8jebp9iQLmTiXkaMYs
/LUAn2BUlKUJ5aSMZ4biyqG9zZSRzPZA
=WGNA
-----END PGP SIGNATURE-----
Received on Sun Jul 08 2012 - 14:57:44 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:40:28 UTC