From: Jakob Oestergaard <jakob@unthought.net>
To: Greg Stark <gsstark@mit.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: More tests [Was: Problem with read blocking for a long time on /dev/scd1]
Date: Fri, 27 Dec 2002 16:36:51 +0100 [thread overview]
Message-ID: <20021227153651.GA27643@unthought.net> (raw)
In-Reply-To: <87n0mxt8md.fsf@stark.dyndns.tv>
On Mon, Dec 23, 2002 at 03:58:02AM -0500, Greg Stark wrote:
...
> > AFAIK 2.4.X broke at 2.4.19-pre6 - something was changed that related to
> > the order in which read requests are scheduled.
>
> I originally had the problem with 2.4.18 and only updated to 2.4.20-ac2 hoping
> it would solve the problem. It doesn't look like the same issue as yours.
I agree.
>
> When your process is blocked, what wait channel does ps -elf list for it?
> What system call does strace -T show it executing and for how long?
I will check this evening when the backup starts.
> I wonder what else is on the ide channels, perhaps if I move things around so
> it's the only device on that channel it would help?
I have four seagate drives, one (master) on each channel of two Promise
adapters.
There's a bunch of other disks in the system as well, but these are the
drives where I notice the problem.
--
................................................................
: jakob@unthought.net : And I see the elder races, :
:.........................: putrid forms of man :
: Jakob Østergaard : See him rise and claim the earth, :
: OZ9ABN : his downfall is at hand. :
:.........................:............{Konkhra}...............:
next prev parent reply other threads:[~2002-12-27 15:28 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-21 0:49 Problem with read blocking for a long time on /dev/scd1 Gregory Stark
2002-12-21 1:28 ` Greg Stark
2002-12-21 6:14 ` Greg Stark
2002-12-22 16:13 ` More tests [Was: Problem with read blocking for a long time on /dev/scd1] Greg Stark
2002-12-22 20:13 ` Jakob Oestergaard
2002-12-23 8:58 ` Greg Stark
2002-12-27 15:36 ` Jakob Oestergaard [this message]
2003-01-08 4:03 ` Jakob Oestergaard
2002-12-23 18:02 ` Problem with read blocking for a long time on /dev/scd1 Krzysztof Halasa
-- strict thread matches above, loose matches on Subject: below --
2003-01-08 12:03 More tests [Was: Problem with read blocking for a long time on /dev/scd1] Andrey Borzenkov
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