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Date:      Fri, 31 May 2013 09:23:47 -0600
From:      "Justin T. Gibbs" <gibbs@scsiguy.com>
To:        sbruno@freebsd.org
Cc:        "FreeBSD-scsi@freebsd.org" <FreeBSD-scsi@freebsd.org>
Subject:   Re: ahd(4) reliable panic
Message-ID:  <D0079385-4C40-40E9-A53E-4A26AFA536F0@scsiguy.com>
In-Reply-To: <1370013140.1347.1.camel@localhost>
References:  <1370013140.1347.1.camel@localhost>

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On May 31, 2013, at 9:12 AM, Sean Bruno <sean_bruno@yahoo.com> wrote:

> ports building seems to be able to panic ahd(4) pretty reliably.
>=20
>=20
>> db> whe
>> Tracing pid 12 tid 100040 td 0xfffffe0015b53000
>> ahd_freeze_devq() at ahd_freeze_devq+0x16/frame 0xffffff800039da60
>> ahd_handle_seqint() at ahd_handle_seqint+0xf11/frame =
0xffffff800039db00
>> ahd_platform_intr() at ahd_platform_intr+0x242/frame =
0xffffff800039db20
>> intr_event_execute_handlers() at =
intr_event_execute_handlers+0xfd/frame 0xffffff800039db50
>> ithread_loop() at ithread_loop+0x9b/frame 0xffffff800039dba0
>> fork_exit() at fork_exit+0x11f/frame 0xffffff800039dbf0
>> fork_trampoline() at fork_trampoline+0xe/frame 0xffffff800039dbf0
>> --- trap 0, rip =3D 0, rsp =3D 0xffffff800039dcb0, rbp =3D 0 ---
>=20
> This looks like a symptom that was reported in a lot of PR reports. =20=

>=20
> I'm assuming that I need more information?
>=20
> Sean

The panic string would be useful.  So might the msgbuf output.

--
Justin=

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