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Date:      Fri, 29 Oct 2004 18:59:45 -0300
From:      Patrick Tracanelli <eksffa@freebsdbrasil.com.br>
To:        Nguyen Tam Chinh <chinhngt@sectorb.msk.ru>
Cc:        current@freebsd.org
Subject:   Re: ad0: FAILURE - WRITE_DMA
Message-ID:  <4182BD51.6070800@freebsdbrasil.com.br>
In-Reply-To: <20041030004556.B13046@unix.local>
References:  <200410081937.15068.miha@ghuug.org> <200410291044.34973.soralx@cydem.org>	<200410291657.33606.miha@ghuug.org> <20041030004556.B13046@unix.local>

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> In FreeBSD 5.3b7 I have the same problem with the Maxtor 120GB IDE
> ad2: 117246MB <Maxtor 6Y120L0/YAR41BW0> [238216/16/63] at ata1-master
> UDMA66
> 
> ad2: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=14301663
> ad2: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=14301663
> ad2: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=14301663
> ad2: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=14301663
> ad2: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=14301663
> ad2: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=14301663
> ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=160532482
> ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=209834594
> ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=218490706
> ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=211340046
> ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=209834594
> ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=163587418
> ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=209834786
> ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=17312287

It aint B7 specific nor ATA DISK specific, also happens on -RC1, 
sometimes on ATA disk (AD0) and a number of times on optical devices.

About 20 minutes ago I have just tried -RC1 and a LiveCD built on top of 
RELENG_5_3 on 4 different laptops, Toshiba and Sony Vaio (both w/ DVD-R 
device) a "generic" transmeta based stuff and another Toshiba Satellite 
w/ combo optical.

The 4 of 'em showed the same behaviour:

acd0: TIMEOUT - READ_BIG retrying (2 retries left)
acd0: TIMEOUT - READ_BIG retrying (2 retries left)
acd0: TIMEOUT - READ_BIG retrying (2 retries left)
acd0: TIMEOUT - READ_BIG retrying (2 retries left)

and 10 minutes later the devices "fires" (READ_BIG.. device fired) and 
so, stalls

-- 
Atenciosamente,

Patrick Tracanelli

FreeBSD Brasil LTDA.
The FreeBSD pt_BR Documentation Project
http://www.freebsdbrasil.com.br
patrick @ freebsdbrasil.com.br
"Long live Hanin Elias, Kim Deal!"



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