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Date:      Fri, 7 Nov 2003 20:56:27 +0200 (EET)
From:      Dmitry Pryanishnikov <dmitry@atlantis.dp.ua>
To:        freebsd-stable@freebsd.org
Cc:        sos@freebsd.org
Subject:   Re: panic at ata-dma: transfer active on this device!
Message-ID:  <20031107204321.I38571@atlantis.atlantis.dp.ua>

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Hello!

Dmitry Morozovsky <marck@rinet.ru> wrote:
> Dear Soeren,
>
> I've got almost reproducible panic at one of our machine (possibly related
> to next-to-failing disk). Backtraces from kernel dump (when kernel is able
> to re-init ata0, otherwise dump is unavailable, of course) look as follow.
> ad0: 39266MB <IC35L040AVER07-0> [79780/16/63] at ata0-master tagged UDMA100

 It looks as a duplicated PR kern/57174. IMHO to avoid such questions in
future the following steps should be made:

1. Add the entry to 4.9-RELEASE Errata (and/or UPDATING) about broken tagged
   queueing in ata(4).

2. Fix ata(4)+tagged queueing in -STABLE, test the fix, optionally MFS it to
   RELENG_4_9.

I understand that (2) would be rather difficult, but I think that (1) should
be done ASAP!

Sincerely, Dmitry
-- 
Atlantis ISP, System Administrator
e-mail:  dmitry@atlantis.dp.ua
nic-hdl: LYNX-RIPE



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