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Message-ID: <46608764.5060807@ru.mvista.com>
Date: Sat, 02 Jun 2007 00:53:56 +0400
From: Sergei Shtylyov <sshtylyov@...mvista.com>
To: Geller Sandor <wildy@...ra.hos.u-szeged.hu>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: HPT374 IDE problem with 2.6.21.* kernels
Hello.
Andrew Morton wrote:
>>I saw a similar report yesterday with '2.6.21.1 - 97% wait time on IDE
>>operations' subject.
>>After upgrading from 2.6.20.7 kernel to 2.6.21.1 my system started to
>>reset infrequenly the IDE bus. In the syslog DMA timeout, resetting IDE
>>bus messages appeared. I've changed the two disks attached to the HPT374
>>controller, and always the first disk had problems. I've replaced cables,
>>plugged the disks into other IDE ports, but it was only a matter of time
>>to experience an IDE reset. When I upgraded to 2.6.21.3 the resets became
>>much more frequent, this time even DMA was disabled too on the first disk.
>>I turned DMA back Manually with hdparm, and a few seconds of intense IO
>>activity resulted in another IDE reset.
>>Reverting back to 2.6.20.12 the problem seems to be gone. BTW I'm using
>>the PATA driver for the HTP374, not the libata one.
>>Is this a known problem/ is there a way I can help locating the cause of
>>the problem?
Yes, please post the boot log and the IDE reset log too for starters...
> (cc's added)
WBR, Sergei
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