Re: ZFS ABD Panic

From: Shawn Webb <shawn.webb_at_hardenedbsd.org>
Date: Tue, 27 Jun 2017 10:16:21 -0400
On Tue, Jun 27, 2017 at 05:12:01PM +0300, Andriy Gapon wrote:
> On 26/06/2017 03:31, Shawn Webb wrote:
> > This is on the latest HardenedBSD 12-CURRENT on one of my servers:
> > 
> > [141] panic: sleepq_add: td 0xfffff80008d20560 to sleep on wchan 0xfffff803b7d4e810 with sleeping prohibited
> > [141] cpuid = 5
> > [141] time = 1498436043
> > [141] KDB: stack backtrace:
> > [141] db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00002fc8b0
> > [141] vpanic() at vpanic+0x19c/frame 0xfffffe00002fc930
> > [141] kassert_panic() at kassert_panic+0x126/frame 0xfffffe00002fc9a0
> > [141] sleepq_add() at sleepq_add+0x34f/frame 0xfffffe00002fc9f0
> > [141] _sx_xlock_hard() at _sx_xlock_hard+0x2a4/frame 0xfffffe00002fcaa0
> > [141] _sx_xlock() at _sx_xlock+0x98/frame 0xfffffe00002fcae0
> > [141] refcount_remove_many() at refcount_remove_many+0x2a/frame 0xfffffe00002fcb20
> > [141] abd_return_buf() at abd_return_buf+0xe3/frame 0xfffffe00002fcb50
> > [141] vdev_geom_io_intr() at vdev_geom_io_intr+0x114/frame 0xfffffe00002fcb70
> > [141] g_io_schedule_up() at g_io_schedule_up+0x42/frame 0xfffffe00002fcba0
> > [141] g_up_procbody() at g_up_procbody+0x6d/frame 0xfffffe00002fcbb0
> > [141] fork_exit() at fork_exit+0x84/frame 0xfffffe00002fcbf0
> > [141] fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00002fcbf0
> 
> Seems like another architectural incompatibility between illumos and FreeBSD.
> Are you able to reproduce the crash more or less reliably?

Yup. I just need to do a buildworld and it's triggered.

-- 
Shawn Webb
Cofounder and Security Engineer
HardenedBSD

GPG Key ID:          0x6A84658F52456EEE
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Received on Tue Jun 27 2017 - 12:16:25 UTC

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