From: SPATZ1@t-online.de (Frank Schneider)
To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Andreas Steinmetz <ast@domdv.de>
Subject: Re: AIC + RAID1 error? (was: Re: aic7xxx errors)
Date: Tue, 11 Sep 2001 00:46:29 +0200 [thread overview]
Message-ID: <3B9D42C5.275A1558@t-online.de> (raw)
In-Reply-To: <XFMail.20010911002924.ast@domdv.de>
Andreas Steinmetz schrieb:
>
> > Something other made me wonder:
> > I ran the machine several times with the *new* aic7xxx-driver (TCQ=32)
> > and the "aic7xxx=verbose" commandline, and i noticed the following:
> > At every reboot (made by "reboot", RH7.1), the machine was not able to
> > stop the raid5 correctly...it un-mounted the mountpoint (/home) and then
> > it normaly wants to stop the raid...(you see the messages "mdrecoveryd
> > got waken up...") but that did not work and after some time (30sec) the
> > kernel Ooopsed. This was reproducable and only occured if booted with
> > the "aic7xxx=verbose" kernel-parameter.
> > The effect after reboot was, that the raid had to be resynced because
> > one partition (that which always falls out) was damaged or at least
> > seemed to.
> > (The filesystem was clean, that was already unmounted as the oops
> > occured.)
> >
> > Perhaps someone can test if this is reproducable with his machine
> > too...i use kernel 2.4.3, raid is built-in, also the aic7xxx, there are
> > three raid-disks (LVD, aic7xxx-controller on Mobo) in a raid5 mounted as
> > /home.
> >
> Same behaviour for RAID1 and the new aic7xxx driver for me at nearly every
> reboot. The old driver works just fine (2.4.9).
Ok, as i am using Kernel 2.4.3, it seems that the problem exists from
2.4.3 to 2.4.9...could you easily post the kernel-oops ?
I can and will, but i am stil in testing the old driver with my
disk-falls-out-of-raid problem, so i cannot reboot the next week or so
as this problem only occurs randomly about once per week...:-(...and i
want to "circle in" this problem to be sure that it is not something
else...
One thing i realize in the moment:
The old driver uses a default TCQ of 8, now my /proc/scsi/aic7xxx/0 says
that the actual queue depth per device is 1,1,1,1,1.....the TCQ is 8.
We should test if the problem with the new driver goes away if we set a
TCQ of 1...or has someone done this already ?
This problem leads IMHO to the theory that the raid-code and the (new)
aic7xxx-code interfer in some way...(race condition?)...perhaps this
also causes my disk to fall out of the raid...
Solong...
Frank.
--
Frank Schneider, <SPATZ1@T-ONLINE.DE>.
Microsoft isn't the answer.
Microsoft is the question, and the answer is NO.
... -.-
next prev parent reply other threads:[~2001-09-10 22:47 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-05 6:21 aic7xxx errors Joseph Mathewson
2001-09-05 7:58 ` Olaf Zaplinski
2001-09-05 9:04 ` Frank Schneider
2001-09-05 10:27 ` Antonio Miguel Trindade
2001-09-05 10:44 ` Frank Schneider
2001-09-05 11:21 ` Thorsten Kranzkowski
2001-09-05 13:05 ` Frank Schneider
2001-09-07 20:32 ` AIC + RAID1 error? (was: Re: aic7xxx errors) Olaf Zaplinski
2001-09-07 22:32 ` Justin T. Gibbs
2001-09-07 22:51 ` Frank Schneider
2001-09-07 23:37 ` Justin T. Gibbs
2001-09-10 13:50 ` Olaf Zaplinski
2001-09-10 19:11 ` Frank Schneider
2001-09-10 22:29 ` Andreas Steinmetz
2001-09-10 22:42 ` Justin T. Gibbs
2001-09-10 22:55 ` Frank Schneider
2001-09-10 23:06 ` Justin T. Gibbs
2001-09-10 23:37 ` Andreas Steinmetz
2001-09-10 23:46 ` Justin T. Gibbs
2001-09-11 0:00 ` Andreas Steinmetz
2001-09-11 12:10 ` Frank Schneider
2001-09-11 16:51 ` Justin T. Gibbs
2001-09-10 23:05 ` Andreas Steinmetz
2001-09-10 22:46 ` Frank Schneider [this message]
2001-09-11 15:00 ` Olaf Zaplinski
2001-09-08 20:25 ` Frank Schneider
2001-09-08 22:07 ` Justin T. Gibbs
2001-09-05 20:23 ` aic7xxx errors Justin T. Gibbs
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