ad0: FAILURE - WRITE_DMA

[Patrick Tracanelli]

> 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!"