atom feed60 messages in org.freebsd.freebsd-currentRe: zfs: Fatal trap 12: page fault wh...
FromSent OnAttachments
Juergen UngerJul 27, 2009 12:24 am 
O. HartmannJul 27, 2009 12:58 pm 
Juergen UngerJul 27, 2009 2:33 pm 
Andriy GaponJul 28, 2009 2:50 am 
Pawel Jakub DawidekJul 29, 2009 1:47 am 
Thomas BackmanJul 29, 2009 3:31 am 
Andriy GaponJul 29, 2009 4:21 am 
Andriy GaponJul 29, 2009 4:41 am 
Thomas BackmanJul 29, 2009 5:45 am 
Andriy GaponJul 29, 2009 6:03 am 
Thomas BackmanJul 29, 2009 6:23 am 
Andriy GaponJul 29, 2009 6:45 am 
Thomas BackmanJul 29, 2009 6:52 am 
Andriy GaponJul 29, 2009 6:55 am 
Thomas BackmanJul 29, 2009 7:10 am 
Andriy GaponJul 29, 2009 7:35 am 
Andriy GaponJul 29, 2009 9:01 am 
Thomas BackmanJul 29, 2009 9:10 am 
Thomas BackmanJul 29, 2009 10:13 am 
Andriy GaponJul 29, 2009 10:17 am 
Thomas BackmanJul 29, 2009 11:03 am 
Thomas BackmanJul 29, 2009 1:14 pm 
Pawel Jakub DawidekJul 29, 2009 2:17 pm 
Thomas BackmanJul 30, 2009 12:04 am 
Andriy GaponJul 30, 2009 5:11 am 
Thomas BackmanJul 30, 2009 5:51 am 
Andriy GaponJul 30, 2009 6:13 am 
Thomas BackmanJul 30, 2009 6:31 am 
Andriy GaponJul 30, 2009 6:34 am 
Andriy GaponJul 30, 2009 7:24 am 
Thomas BackmanJul 30, 2009 7:39 am 
Andriy GaponJul 30, 2009 7:45 am 
Andriy GaponJul 30, 2009 7:48 am 
Thomas BackmanJul 30, 2009 8:25 am 
Andriy GaponJul 30, 2009 8:39 am 
Thomas BackmanJul 30, 2009 9:41 am 
Thomas BackmanJul 30, 2009 11:29 am 
Andriy GaponJul 30, 2009 11:41 am 
Thomas BackmanJul 31, 2009 2:04 am 
James R. Van ArtsdalenJul 31, 2009 4:44 am 
Thomas BackmanJul 31, 2009 5:26 am 
Thomas BackmanJul 31, 2009 10:09 am 
Tim KientzleAug 1, 2009 10:11 am 
Juergen UngerAug 2, 2009 2:26 am 
Pawel Jakub DawidekAug 2, 2009 2:29 am 
Juergen UngerAug 3, 2009 1:32 pm 
Pawel Jakub DawidekAug 4, 2009 12:33 am 
Juergen UngerAug 4, 2009 12:53 am 
Pawel Jakub DawidekAug 4, 2009 2:49 am 
Juergen UngerAug 4, 2009 2:56 am 
Pawel Jakub DawidekAug 4, 2009 12:50 pm 
Thomas BackmanAug 4, 2009 1:10 pm 
Pawel Jakub DawidekAug 4, 2009 1:25 pm 
Pawel Jakub DawidekAug 4, 2009 11:49 pm 
Thomas BackmanAug 5, 2009 12:08 am 
Thomas BackmanAug 5, 2009 12:20 am 
Pawel Jakub DawidekAug 5, 2009 2:37 am 
Thomas BackmanAug 5, 2009 3:36 am 
Thomas BackmanAug 5, 2009 5:06 am 
Pawel Jakub DawidekAug 6, 2009 10:44 pm 
Subject:Re: zfs: Fatal trap 12: page fault while in kernel mode
From:Thomas Backman (sere@exscape.org)
Date:Jul 29, 2009 10:13:01 am
List:org.freebsd.freebsd-current

On Jul 29, 2009, at 16:36, Andriy Gapon wrote:

on 29/07/2009 17:10 Thomas Backman said the following: [snip]

(kgdb) fr 11 [snip] (kgdb) p *sx $8 = {lock_object = {lo_name = 0xffffffff80b5634c "zp->z_lock", lo_flags = 40894464 [0x2700000, btw], lo_data = 0, lo_witness = 0x0}, sx_lock = 6}

... as you might notice, I'm mostly clueless as to what I'm doing here. :o Hope that helps (a bit), though.

Yes, it does and a lot. sx_lock = 6 means that this sx lock is destroyed: #define SX_LOCK_DESTROYED \ (SX_LOCK_SHARED_WAITERS | SX_LOCK_EXCLUSIVE_WAITERS)

And lo_name tells that this is zp->z_lock. This lock is destroyed in zfs_znode_cache_destructor. Not enough knowledge for me to proceed further.

Also, FWIW: Without "options SMP", "zpool" simply goes into an uninterruptible sleep (state D+) on export. kill -9 has no effect, and the backup process just hangs. The rest of the system works great, but... yeah. (The block that causes the panic is wrapped by #ifdef ADAPTIVE_SX, which isn't defined without smp AFAIK.)

Regards, Thomas

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