[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <4A270841.7070107@gmail.com>
Date: Wed, 03 Jun 2009 17:33:21 -0600
From: Robert Hancock <hancockrwd@...il.com>
To: Kasper Sandberg <lkml@...anurb.dk>
CC: Torsten Kaiser <just.for.lkml@...glemail.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
SCSI development list <linux-scsi@...r.kernel.org>
Subject: Re: sata_sil24 0000:04:00.0: DMA-API: device driver frees DMA sg
list with different entry count [map count=13] [unmap count=10]
Kasper Sandberg wrote:
> On Wed, 2009-06-03 at 21:30 +0200, Torsten Kaiser wrote:
>> On Wed, May 27, 2009 at 1:40 AM, Robert Hancock <hancockrwd@...il.com> wrote:
>>> Torsten Kaiser wrote:
>>>> On upgrading to 2.6.30-rc1 I enable the DMA-Debugging option
>>>> CONFIG_DMA_API_DEBUG=y
>>>> Since then I get the following or similar errors on each boot:
>>> Please retest with a newer -rc, this patch likely fixes it:
>>>
>>> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5825627c9463581fd9e70f8285685889ae5bb9bb
>>>
>> Still happens with 2.6.30-rc8 (see trace at the end of the email)
>>
> <snip>
>
> Does this actually give you any problems? should I be scared to give .30
> a test?
If Torsten's diagnosis is correct it's a problem with the DMA debugging
code, not an actual driver bug.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists