From: Andrew Morton <akpm@linux-foundation.org>
To: Karsten Keil <kkeil@suse.de>
Cc: torvalds@linux-foundation.org, linux-kernel@vger.kernel.org,
isdn4linux@listserv.isdn4linux.de, stable@kernel.org
Subject: Re: [PATCH] [ISDN] Fix random hard freeze with AVM c4 card
Date: Wed, 17 Oct 2007 14:25:56 -0700 [thread overview]
Message-ID: <20071017142556.0fda897f.akpm@linux-foundation.org> (raw)
In-Reply-To: <20071017110744.GA6687@pingi.kke.suse.de>
On Wed, 17 Oct 2007 13:07:44 +0200
Karsten Keil <kkeil@suse.de> wrote:
> The patch
> - Includes the call to capilib_data_b3_req in the spinlock. This routine
> in turn calls the offending mq_enqueue routine that triggered the
> freeze if not locked. This should also fix other indicators of
> incosistent capilib_msgidqueue list, that trigger messages like:
> Oct 5 03:05:57 BERL0 kernel: kcapi: msgid 3019 ncci 0x30301 not on queue
> that we saw several times a day (usually several in a row).
> - Fixes all occurrences of c4_dispatch_tx to be called with active
> spinlock, there were some instances where no lock was active. Mostly
> these are in very infrequently called routines, so the additional
> performance penalty is minimal.
I've tagged this patch and "[ISDN] fix random freezes with AVM B1 drivers"
as suitable for backporting into 2.6.23.x. Please let me know if that was
not appropriate.
prev parent reply other threads:[~2007-10-17 21:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-17 11:07 [PATCH] [ISDN] Fix random hard freeze with AVM c4 card Karsten Keil
2007-10-17 21:25 ` Andrew Morton [this message]
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