Re: 2.6.17-rc5-mm1

[Martin Bligh <mbligh@google.com>]

> That did seem to get rid of the original error.    However, I'm now
> experiencing a reiserfs4 panic so I'm not 100% confident the problem
> really is gone, but the reiserfs panic isn't anywhere as near hard as
> the panic's I have been experiencing; I was able to reboot the machine
> even though the tests were not completing correctly.  Full panic for
> that one is below:

Get the same exact panic on ia32 NUMA-Q (just posted it, but for
reference, there's a copy here:
http://test.kernel.org/abat/34623/debug/console.log
). But only in -mm3, not -mm2, so
probably it's intermittent if you were already seeing it on -mm1?

PS. I think the reiser4 thing was a typo, it's generic by the looks
of it, and I don't think we test reiser4, is probably ext3 or 2.

> general protection fault: 0000 [1] SMP
> last sysfs file: /devices/pci0000:00/0000:00:06.0/resource
> CPU 1
> Modules linked in:
> Pid: 19163, comm: mkdir09 Not tainted 2.6.17-rc5-mm2-autokern1 #1
> RIP: 0010:[<ffffffff802412b0>]  [<ffffffff802412b0>]
> check_deadlock+0x1f/0x117
> RSP: 0000:ffff8101fb803dd8  EFLAGS: 00010002
> RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
> RDX: ffff8101f3e64000 RSI: 0000000000000001 RDI: 2222222222222222
> RBP: ffff8101fb803df8 R08: 0000000000000000 R09: ffff8101fb803e68
> R10: ffff8101fb802000 R11: 00000000ffffff9c R12: ffff8101fcafa7b0
> R13: 2222222222222222 R14: 2222222222222222 R15: 0000000000000000
> FS:  000000000804a020(0000) GS:ffff8100e3f27e40(0063) knlGS:00000000f7e15460
> CS:  0010 DS: 002b ES: 002b CR0: 000000008005003b
> CR2: 00000000f7ee2090 CR3: 00000001f4dce000 CR4: 00000000000006e0
> Process mkdir09 (pid: 19163, threadinfo ffff8101fb802000, task
> ffff8101fdd4b0d0)
> Stack: 0000000000000000 ffff8101fcafa7b0 ffff8101f3ae5988 2222222222222222
>        ffff8101fb803e28 ffffffff80241361 ffff8101f3ae5988 ffff8101fb802000
>        ffff8101fb803e68 ffff8101fdd4b0d0
> Call Trace:
>  [<ffffffff80241361>] check_deadlock+0xd0/0x117
>  [<ffffffff80241574>] debug_mutex_add_waiter+0x57/0x6f
>  [<ffffffff8048cf47>] __mutex_lock_slowpath+0xc7/0x232
>  [<ffffffff802800bc>] do_path_lookup+0x258/0x29c
>  [<ffffffff8048d0bb>] mutex_lock+0x9/0xb
>  [<ffffffff802816db>] do_rmdir+0x84/0xfc
>  [<ffffffff80281764>] sys_rmdir+0x11/0x13
>  [<ffffffff8021c2d6>] ia32_sysret+0x0/0xa
> 
> 
> Code: 48 8b 57 18 48 85 d2 0f 84 e2 00 00 00 4c 8b 22 45 31 f6 49
> RIP  [<ffffffff802412b0>] check_deadlock+0x1f/0x117 RSP <ffff8101fb803dd8>
>  NMI Watchdog detected LOCKUP on CPU 0
> CPU 0
> Modules linked in:
> Pid: 19164, comm: mkdir09 Not tainted 2.6.17-rc5-mm2-autokern1 #1
> RIP: 0010:[<ffffffff8048d626>]  [<ffffffff8048d626>]
> .text.lock.mutex+0x2f/0x65
> RSP: 0000:ffff8101f3e65e98  EFLAGS: 00000086
> RAX: 0000000000000000 RBX: ffff81007b8ec748 RCX: 0000000000000012
> RDX: 0000000000000000 RSI: 0000000000000012 RDI: ffff8101f3ae5988
> RBP: ffff8101f3e65eb8 R08: ffff8101803f6cf8 R09: ffff81007b8ec748
> R10: 000000000000002f R11: 0000000000000000 R12: ffff8101f3ae5988
> R13: 0000000000000246 R14: 0000000000000000 R15: 0000000000000000
> FS:  000000000804a020(0000) GS:ffffffff8061b000(0063) knlGS:00000000f7e15460
> CS:  0010 DS: 002b ES: 002b CR0: 000000008005003b
> CR2: 00000000f7ed5cc0 CR3: 00000001f52e4000 CR4: 00000000000006e0
> Process mkdir09 (pid: 19164, threadinfo ffff8101f3e64000, task
> ffff8101fcafa7b0)
> Stack: 0000000000000012 ffff81007b8ec748 0000000000000000 ffff81007b92a000
>        ffff8101f3e65ec8 ffffffff8048d2a3 ffff8101f3e65f68 ffffffff8028172a
>        ffff8101f4dd49b8 ffff810180051ec0
> Call Trace:
>  [<ffffffff8048d2a3>] mutex_unlock+0x9/0xb
>  [<ffffffff8028172a>] do_rmdir+0xd3/0xfc
>  [<ffffffff80281764>] sys_rmdir+0x11/0x13
>  [<ffffffff8021c2d6>] ia32_sysret+0x0/0xa
> 
> -apw