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Date:      Thu, 27 Oct 2016 21:09:16 +0800
From:      Ben Woods <woodsb02@gmail.com>
To:        Mateusz Guzik <mjguzik@gmail.com>, Ben Woods <woodsb02@gmail.com>,  FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: Kernel crashes from turnstile_broadcast (/usr/src/sys/kern/subr_turnstile.c:837)
Message-ID:  <CAOc73CD7dBTVtSCBpuRzrj_sVNhjmorJ6JzWVUDR2TRcmLmTsQ@mail.gmail.com>
In-Reply-To: <CAOc73CBR4U7BDTPEXhmMDFSEbKmXqRJpbcHpJ6Fw2959eJmFvw@mail.gmail.com>
References:  <CAOc73CDZnPy1JJ8DBJyANsYqPkV35__ojfE%2BFbfbT3hTZw7MgA@mail.gmail.com> <20160922130141.GA9643@dft-labs.eu> <CAOc73CBR4U7BDTPEXhmMDFSEbKmXqRJpbcHpJ6Fw2959eJmFvw@mail.gmail.com>

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On 24 September 2016 at 18:13, Ben Woods <woodsb02@gmail.com> wrote:

> On 22 September 2016 at 21:01, Mateusz Guzik <mjguzik@gmail.com> wrote:
>
>> On Thu, Sep 22, 2016 at 08:48:29PM +0800, Ben Woods wrote:
>> > #13 0xffffffff80b4d91c in turnstile_broadcast (ts=0x0, queue=1) at
>> > /usr/src/sys/kern/subr_turnstile.c:837
>> > #14 0xffffffff80ae5e1f in __rw_wunlock_hard (c=0xfffff803f886d960,
>> > tid=<value optimized out>, file=<value optimized out>, line=<value
>> > optimized out>)
>> >     at /usr/src/sys/kern/kern_rwlock.c:1027
>>
>> can you please:
>> f 14
>> x/xg c
>>
>>
>> --
>> Mateusz Guzik <mjguzik gmail.com>
>>
>
> Thanks for the help Mateusz.
>
> (kgdb) f 14
> #14 0xffffffff80ae5e1f in __rw_wunlock_hard (c=0xfffff803f886d960,
> tid=<value optimized out>, file=<value optimized out>, line=<value
> optimized out>)
>     at /usr/src/sys/kern/kern_rwlock.c:1027
> 1027            turnstile_broadcast(ts, queue);
> Current language:  auto; currently minimal
> (kgdb) x/xg c
> 0xfffff803f886d960:     0xfffff8032893aa00
>
> Regards,
> Ben
>

Hi everyone,

Just a heads up that after updating my FreeBSD 12-current machine to
r307773 I am still getting this kernel panic.

Note that I have compiled the kernel with VIMAGE support if that makes any
difference.

Mateusz: any further ideas on what it could be?

Any help is appreciated :)

Regards,
Ben



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