From: Daniel McNeil <daniel@osdl.org>
To: Andrew Morton <akpm@osdl.org>, Suparna Bhattacharya <suparna@in.ibm.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org, "linux-aio@kvack.org" <linux-aio@kvack.org>
Subject: Re: 2.6.0-test9-mm1 -- DIO and AIO Tests results
Date: 31 Oct 2003 15:32:54 -0800 [thread overview]
Message-ID: <1067643174.2558.13.camel@ibm-c.pdx.osdl.net> (raw)
In-Reply-To: <20031030011810.633a8f5b.akpm@osdl.org>
I have re-run the AIO tests on test9, test9-mm1, and
test9-mm1+retry-based-aio-dio-patch;
I ran the tests on an ext3 file system running on a 2-proc XEON
to an ide disk drive.
2.6.0-test9:
===========
As reported earlier, test9 is seeing uninitialized data and the
kiocbs are being modified after free:
$ dio_sparse
non zero buffer at buf[0] => 0xaa,aa,aa,aa
non-zero read at offset 69533696
$ aiodio_sparse
non zero buffer at buf[0] => 0xaa,aa,aa,aa
non-zero read at offset 81854464
With slab debug on, test9 still gets
slab error in check_poison_obj(): cache `kiocb': object was modified after freeing
2.6.0-test9-mm1:
===============
dio_spares - run without seeing uninitialized data
aiodio_sparse - get AIO errors and these kernel messages:
aio_run_iocb: iocb->ki_retry = NULL
Maximal retry count. Bytes done 0
Slab corruption: start=e8676d68, expend=e8676e37, problemat=e8676d68
Last user: [<c018f883>](__aio_put_req+0xa8/0x1b3)
...
slab error in check_poison_obj(): cache `kiocb': object was modified after freeing
2.6.0-test9-mm1+retry-based-aio-dio-patch (from suparna)
=======================================================
dio_sparse - runs successfully and does not see uninitialized data
aiodio_sparse - runs successfully, does not see uninitialized data,
and no slab corruption.
As before, my updated tests are here:
http://developer.osdl.org/daniel/AIO/TESTS/
Daniel
next prev parent reply other threads:[~2003-10-31 23:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-30 9:18 2.6.0-test9-mm1 Andrew Morton
2003-10-30 18:41 ` 2.6.0-test9-mm1 (compile stats) John Cherry
2003-10-31 23:32 ` Daniel McNeil [this message]
2003-11-01 22:21 ` 2.6.0-test9-mm1(bug in fs/inode.c) dacin
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