Re: SATA hangs...

On Saturday 24 June 2006 23:30, you wrote:
On Saturday 24 June 2006 09:09, you wrote:
On Sat, 24 Jun 2006 09:36:59 +0200

Paolo Ornati <ornati@xxxxxxxxxxxxx> wrote:
I'm having problems with a SATA drive on an ASUS A8V deluxe
motherboard under kernel 2.6.17... In fact it's happened under
every (Vanilla) kernel I've ever run on this server (Back to
2.6.14). (It's just over a year old. It didn't used to experience
the same load as it does now, so I'm currently assuming it's load
related...

I think I've hit something similar yesterday, with 2.6.17.1...

I was thinking that I've recently enabled CONFIG_PREEMPT (usually I
was just using CONFIG_PREEMPT_VOLUNTARY).

Maybe is totally unrelated but... for Hamish: what is/was your PREEMPT
config?

Hmm...

damned stats # gzip -dc /proc/config.gz |grep -i preempt
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
CONFIG_DEBUG_PREEMPT=y
damned stats #

I also tried 2.6.17-mm but that dies in reiserfs claiming a bug in bitmap.c

I'll try a re-compile of 2.7.17.1 vanilla with no pre-empt & see how it
goes.


Well, I turned off pre-empt, and haven't struck a problem since in almost a
week.

H

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