Re: ZFS ABD Panic

On Tue, Jun 27, 2017 at 05:22:39PM +0300, Andriy Gapon wrote:
> On 27/06/2017 17:16, Shawn Webb wrote:
> > 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.
> > 
> 
> Could you please test this patch?
> http://dpaste.com/12M183A.txt
> I put it together rather quickly, but I think that it should work :)

Can do later today. I'll report back either tonight or tomorrow.

Thanks,

-- 
Shawn Webb
Cofounder and Security Engineer
HardenedBSD

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