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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-aio@kvack.org" <linux-aio@kvack.org>
Subject: Re: 2.6.0-test6-mm4 - oops in __aio_run_iocbs()
Date: 08 Oct 2003 16:18:15 -0700	[thread overview]
Message-ID: <1065655095.1842.34.camel@ibm-c.pdx.osdl.net> (raw)
In-Reply-To: <20031005013326.3c103538.akpm@osdl.org>

I'm been testing AIO on test6-mm4 using a ext3 file system and
copying a 88MB file to an already existing preallocated file of 88MB.
I been using my aiocp program to copy the file using i/o sizes of
1k to 512k and outstanding aio requests of between 1 and 64 using
O_DIRECT, O_SYNC and O_DIRECT & O_SYNC.  Everything works as long
as the file is pre-allocated.  When copying the file to a new file
(O_CREAT|O_DIRECT), I get the following oops:


Unable to handle kernel paging request at virtual address 6b6b6b6b
 printing eip:
c018fa34
*pde = 00000000
Oops: 0000 [#1]
SMP
CPU:    1
EIP:    0060:[<c018fa34>]    Not tainted VLI
EFLAGS: 00010002
EIP is at __aio_run_iocbs+0x19/0xa2
eax: 00000000   ebx: d443b318   ecx: d4055c78   edx: 6b6b6b6b
esi: d4055c78   edi: d4055cb0   ebp: dfd6df48   esp: dfd6df34
ds: 007b   es: 007b   ss: 0068
Process aio/1 (pid: 16, threadinfo=dfd6c000 task=dfd71340)
Stack: 00010000 dfd71914 d4055c78 d4055c9c dfd72790 dfd6df68 c018faf6 d4055c78
       dfd6df54 dfd6df54 dfd6c000 d4055cfc 00000287 dfd6dfec c0138ad8 d4055c78
       dfd6dfa0 00000000 5a5a5a5a dfd727b8 dfd727a8 d4055c78 c018fabd dfd727a0

Call Trace:
 [<c018faf6>] aio_kick_handler+0x39/0x96
 [<c0138ad8>] worker_thread+0x1e6/0x346
 [<c018fabd>] aio_kick_handler+0x0/0x96
 [<c0122041>] default_wake_function+0x0/0x2e


Daniel


  parent reply	other threads:[~2003-10-08 23:18 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-05  8:33 2.6.0-test6-mm4 Andrew Morton
2003-10-05  9:26 ` 2.6.0-test6-mm4 Daniele Bellucci
2003-10-08 23:18 ` Daniel McNeil [this message]
2003-10-09 11:16   ` 2.6.0-test6-mm4 - oops in __aio_run_iocbs() Suparna Bhattacharya
2003-10-09 12:59     ` Suparna Bhattacharya
2003-10-09 17:42       ` Daniel McNeil
2003-10-09 17:38     ` Daniel McNeil
2003-10-10  8:34       ` Suparna Bhattacharya
2003-10-10 11:48         ` Suparna Bhattacharya
2003-10-10 22:11           ` Daniel McNeil
2003-10-09 19:24     ` bill davidsen

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