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From: Ivan Gyurdiev <ivg2@cornell.edu>
To: <lista1@telia.com>, <axboe@suse.de>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: 2.5.75 does not boot - TCQ oops
Date: Sat, 12 Jul 2003 06:46:01 -0400	[thread overview]
Message-ID: <200307120646.01060.ivg2@cornell.edu> (raw)

Okay, I figured out some more things.

I split my root fs in half and made two identical copies  - one on reiser and 
one on xfs. I compiled a bunch of kernels, and tested some more.

A TCQ enabled kernel with AS, queue depth of 32 works fine on both reiser and 
xfs. A TCQ enabled kernel with deadline, queue depth of 32 works fine on both 
reiser and xfs. Note the depth of 32. I had TCQ enabled on previous <74 
kernels and it worked fine, everywhere with depth 32. 

However, the kernel that crashed was using the default
(The default is 8, even though the comment says 32).
I tested that kernel again with reiserfs, TCQ, the two elevators, and queue 
depth 8 - on-boot fsck detects corruption every time, marks the system 
unclean, and requires --rebuild-tree or --fix-fixable on any further mounts. 
I now get "Wrong amount of used blocks." message.

Have not tested depth 8 TCQ kernel with xfs, since that's my surviving root 
fs, and I'd like to avoid corruption there. 

Have not tested queue depths other than 8 and 32. 
I could test some more on reiser now that I have a backup root fs.





             reply	other threads:[~2003-07-12 12:22 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-12 10:46 Ivan Gyurdiev [this message]
2003-07-12 13:07 ` 2.5.75 does not boot - TCQ oops Voluspa
  -- strict thread matches above, loose matches on Subject: below --
2003-07-12  7:51 Ivan Gyurdiev
2003-07-12  4:05 Voluspa
2003-07-11  8:35 Voluspa
2003-07-11  2:51 Ivan Gyurdiev
2003-07-11  8:03 ` Jens Axboe
2003-07-11  8:28   ` Jens Axboe
2003-07-11  8:34     ` Jens Axboe
2003-07-11 10:54       ` Bartlomiej Zolnierkiewicz
2003-07-11 10:55         ` Jens Axboe
2003-07-11 20:58       ` Ivan Gyurdiev

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