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SubjectRe: Detecting I/O error and Halting System
First of all, thank you for your analysis.

I don't think that it's a HDD problem nor a cable
problem because the servers are new. We have tried
different HDD (seagate, maxtor) but it has not help
anyway.
It's perhaps a temperature problem but we make a lot
tests in hard condition (high temperature)
successfuly...

One thinks that the problem comes from the VIA chipset
VT82c686 (it's also the opinion of Dick Johnson
(linux-os) whom advised me to try UDMA33 instead of
UDMA66).

How can I determine the problem?

I want to add that the HDD seems to be disconnected
(the BIOS can't find any drive for boot) after a
simple reset. We must switch off the servers to get
them work again.
However, it takes a long time (4 mounths and more)
before the HDD fell down. I want to work around by
write a module which will supervise the HDD. I know
how to write a module (I used the lkmpg guide
(http://www.tldp.org/LDP/lkmpg/) but how can I
shutdown Linux from inside a module...?

best regards.

Zine.


--- Alan Cox <alan@lxorguk.ukuu.org.uk> a écrit :

> On Llu, 2006-03-27 at 16:55 +0200, zine el abidine
> Hamid wrote:
> > hda: status timeout: status=0xd0 { Busy }
> adapter
> > disque annonce un status busy du DMA
>
> If I'm reading the translation right then your hard
> disk decided
> it was busy and then never came back
>
> > Feb 12 04:46:23 porte_de_clignancourt_nds_b
> kernel:
> > ide0: reset: success
>
> So the IDE layer tried to reset it
>
> > Feb 12 10:22:38 porte_de_clignancourt_nds_b
> kernel:
> > hda: timeout waiting for DMA
>
> Which didnt help
>
> > Feb 12 10:24:47 porte_de_clignancourt_nds_b
> kernel:
> > ide0: reset: success
>
> Still trying
>
> > Feb 12 10:24:47 porte_de_clignancourt_nds_b
> kernel:
> > hda: irq timeout: status=0xd0 { Busy }
>
> >
> > Feb 12 10:24:47 porte_de_clignancourt_nds_b
> kernel:
> > hda: DMA disabled
>
> We gave up on DMA to see if PIO would help
> >
> >
> > Feb 12 10:24:47 porte_de_clignancourt_nds_b
> kernel:
> > ide0: reset timed-out, status=0x80
> > Feb 12 10:24:47 porte_de_clignancourt_nds_b
> kernel:
> > hda: status timeout: status=0x80 { Busy }
> > nouvel échec de reset
> > Feb 12 10:24:47 porte_de_clignancourt_nds_b
> kernel:
> > hda: drive not ready for command
> > Feb 12 10:24:47 porte_de_clignancourt_nds_b
> kernel:
> > ide0: reset: success
>
> And reset..
>
>
> > Feb 12 13:45:38 porte_de_clignancourt_nds_b
> kernel:
> > hda: status timeout: status=0x80 { Busy }
> > Feb 12 13:45:38 porte_de_clignancourt_nds_b
> kernel:
> > hda: drive not ready for command
> > Feb 12 13:45:38 porte_de_clignancourt_nds_b
> kernel:
> > ide0: reset timed-out, status=0x80
> > Feb 12 13:45:38 porte_de_clignancourt_nds_b
> kernel:
> > end_request: I/O error, dev 03:02 (hda), sector
> 102263
> > Feb 12 13:45:38 porte_de_clignancourt_nds_b
> syslogd:
> > /var/log/maillog: Input/output error
> > Feb 12 13:45:38 porte_de_clignancourt_nds_b
> kernel:
> > end_request: I/O error, dev 03:02 (hda), sector
> 110720
> > Feb 12 13:45:38 porte_de_clignancourt_nds_b
> kernel:
> > end_request: I/O error, dev 03:02 (hda), sector
> 110728
>
> Eventually we give up.
>
>
> First thing to check would be the disk and the
> temperature, then the
> cabling. In particular make sure the *long* part of
> the cable is between
> the drive and the controller.
>
>








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