Re: VIA silent disk corruption - patch

From: Jonathan Morton (
Date: Tue Feb 06 2001 - 14:57:17 EST

>I still get corruption with "I/O Recovery Time" enabled :-(
>I don't get corruption with the BIOS "normal" settings (1004D).
>I might update my BIOS to the latest BIOS in case it changes any other

I'm using an Abit KT7 m/board, which uses the same KT133 chipset that I
believe you are all talking about. Note this is distinct from the KT7-RAID
which has a UDMA-100 RAID chipset on it in addition to the normal IDE
bridge. I've had no problems with disk corruption, despite turning
everything I dare in the BIOS to "full optimisation" settings - this
includes the "Fast CPU Command Decode" and "Enhance Chipset Performance".

The CPU is a Duron 700MHz, and the drives in question are a Seagate
Barracuda ST310210A on hda and a TEAC CD-540E on hdc. /sbin/hdparm reports
both drives as NOT using DMA, I might try switching it on and seeing what

... half an hour later, i actually try it. Machine appears to be locked
while performing hdparm -t /dev/hda, but waiting to see if it's actually a
timeout. Performance is abysmal when UDMA is off, incidentally - less than
5Mb/sec from this 7200rpm drive. The 10,000rpm IBM SCSI drive also in that
machine benchmarks at around 35Mb/sec.

... after about 10 minutes waiting, while adding to this e-mail, the box is
still hung. Hmph... *RESET*

from: Jonathan "Chromatix" Morton
mail: (not for attachments)

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This archive was generated by hypermail 2b29 : Wed Feb 07 2001 - 21:00:24 EST