Re: 2.5.69, IDE TCQ can't be enabled
Jens Axboe (firstname.lastname@example.org)
Mon, 12 May 2003 15:23:30 +0200
On Mon, May 12 2003, Oleg Drokin wrote:
> On Mon, May 12, 2003 at 03:16:17PM +0200, Bartlomiej Zolnierkiewicz wrote:
> > > > Just a note that we have found TCQ unusable on our IBM drives and we had
> > > > some reports about TCQ unusable on some WD drives.
> > > > Unusable means severe FS corruptions starting from mount.
> > > > So if your FSs will suddenly start to break, start looking for cause with
> > > > disabling TCQ, please.
> > > I can confirm that. This drive Model=IBM-DTLA-307045, FwRev=TX6OA60A,
> > > SerialNo=YMCYMT3Y229 has eaten my filesystem with TCQ on 2.5.69
> > TCQ is marked EXPERIMENTAL and is known to be broken.
> > Probably it should be marked DANGEROUS or removed?
> How do you think people will test code that is removed?
> Or do you mean that nobody plans to look at this ever?
> I remember that Jens Axboe promised to take a look at it some
> months ago.
Yeah, that is correct. OTOH, it's not a great loss. The SATA tcq will be
much better, ide tcq is a really horrible beast.
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