From: Charles-Edouard Ruault <ce@ruault.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Folkert van Heusden <folkert@vanheusden.com>,
linux-kernel@vger.kernel.org
Subject: Re: [BUG] kernel 2.6.15.4: soft lockup detected on CPU#0!
Date: Thu, 16 Feb 2006 12:18:18 +0100 [thread overview]
Message-ID: <43F45F7A.8090606@ruault.com> (raw)
In-Reply-To: <20060216024625.1b5dc77b.akpm@osdl.org>
Andrew Morton wrote:
>Folkert van Heusden <folkert@vanheusden.com> wrote:
>
>
>>I noticed that altough -i says using dma, that -d tells me it really is
>> off.
>>
>>
>
>Yup, `hdparm -i' tells you what the drive _can_ do, not what it's actually
>doing.
>
>
>
here's what i have:
sudo /sbin/hdparm -d /dev/hdd
/dev/hdd:
using_dma = 1 (on)
sudo /sbin/hdparm -d /dev/hdc
/dev/hdc:
using_dma = 1 (on)
So it appears that both CDROM/DVDROM drives are using DMA, which
confirms what i was thinking (since the traceback i have is not the same
as the one Folker provided which clearly indicates that it happens
during a pio operation ).
--
Charles-Edouard Ruault
GPG key Id E4D2B80C
next prev parent reply other threads:[~2006-02-16 11:18 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-12 18:50 [BUG] kernel 2.6.15.4: soft lockup detected on CPU#0! Charles-Edouard Ruault
2006-02-14 11:41 ` Folkert van Heusden
2006-02-14 16:32 ` Lee Revell
2006-02-15 15:07 ` Folkert van Heusden
2006-02-15 18:19 ` Lee Revell
2006-02-16 1:38 ` Alan Cox
2006-02-17 22:56 ` Lee Revell
2006-02-16 2:51 ` Andrew Morton
2006-02-16 9:44 ` Charles-Edouard Ruault
2006-02-16 10:36 ` Folkert van Heusden
2006-02-16 10:46 ` Andrew Morton
2006-02-16 11:18 ` Charles-Edouard Ruault [this message]
2006-02-16 12:57 ` Alan Cox
2006-02-16 13:33 ` Bartlomiej Zolnierkiewicz
2006-02-16 20:20 ` Andrew Morton
2006-02-17 11:47 ` Bartlomiej Zolnierkiewicz
2006-02-17 13:08 ` [patch] timer-irq-driven soft-watchdog, cleanups Ingo Molnar
2006-02-17 14:46 ` Bartlomiej Zolnierkiewicz
2006-02-17 19:52 ` Ingo Molnar
2006-02-17 20:11 ` Ingo Molnar
2006-02-17 22:15 ` Bartlomiej Zolnierkiewicz
2006-03-13 14:48 ` Charles-Edouard Ruault
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