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From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Linas Vepstas <linas@austin.ibm.com>
Cc: linux-ide@vger.kernel.org
Subject: Re: [RFT] hpt366: reset DMA state machine on timeouts
Date: Sat, 23 Jun 2007 22:10:34 +0400	[thread overview]
Message-ID: <467D621A.80406@ru.mvista.com> (raw)
In-Reply-To: <20070622163646.GG8840@austin.ibm.com>

Hello.

Linas Vepstas wrote:

>>>>Reset HPT36x's DMA state machine on a DMA timeout the way it's done for 
>>>>HPT370.
>>>>drivers/ide/pci/hpt366.c |   24 +++++++++++++++++++++++-

>>>This worked great!  

>>   I hope you meant those messages were preceeded by DMA timeouts 
>>   (otherwise this code wouldn't come into action).

> Oops, I was wrong ... 

> Scads of 
> Jun 21 20:22:30 localhost kernel: [  434.574301] hdc: task_out_intr:
> status=0x50 { DriveReady SeekComplete }
> Jun 21 20:22:30 localhost kernel: [  434.574318] ide: failed opcode was:
> unknown

>>>from it (I put in a printk to verify this).

>>   You mean into my ide_dma_timeout() method?

> Ooops, I lied. I have so many printk's in there, that I got confused.
> No, in fact, it looks like I did NOT see your handler run. 

    Now I'm confused too -- did you get any DMA timeouts this time?

> --linas

MBR, Sergei

  reply	other threads:[~2007-06-23 18:08 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-21 17:54 [RFT] hpt366: reset DMA state machine on timeouts Sergei Shtylyov
2007-06-21 19:31 ` Linas Vepstas
2007-06-22 15:13 ` Linas Vepstas
2007-06-22 15:32   ` Sergei Shtylyov
2007-06-22 16:36     ` Linas Vepstas
2007-06-23 18:10       ` Sergei Shtylyov [this message]
2007-06-25 21:44         ` Linas Vepstas
2007-06-26 13:57           ` Sergei Shtylyov
2007-06-22 15:54   ` Alan Cox
2007-06-22 16:03     ` Linas Vepstas
2007-06-22 16:33       ` Alan Cox

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