From: Mingming Cao <cmm@us.ibm.com>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Shehjar Tikoo <shehjart@cse.unsw.edu.au>, linux-ext4@vger.kernel.org
Subject: Re: Crash and stack trace for jbd2 under ext4
Date: Tue, 22 Jul 2008 17:49:48 -0700 [thread overview]
Message-ID: <1216774188.6505.1.camel@mingming-laptop> (raw)
In-Reply-To: <20080721082010.GC8788@skywalker>
在 2008-07-21一的 13:50 +0530，Aneesh Kumar K.V写道：
> On Mon, Jul 21, 2008 at 02:28:39PM +1000, Shehjar Tikoo wrote:
> > Hi all
> >
> > Please see the contents of the file
> > for details of two similar crashes observed
> > on two different commits. Both crashes were
> > observed while using ext4 on the server while
> > accessing the export through NFSv3. The link
> > has more details.
> >
> > http://www.gelato.unsw.edu.au/~shehjart/docs/jbd_ext4_crash.txt
> >
>
> I guess we cannot use
> #define EXT4_MAX_WRITEBACK_CREDITS DIO_CREDITS
>
> We do multiple block allocation in ext4_da_writepages and we can
> get these blocks from different block groups. So we may need to update
> bitmap of multiple groups.
>
> -aneesh
Yeah, the journal credit reservation for writepages() need a little
attention. I will send a RFC patch shortly.
Mingming
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next prev parent reply other threads:[~2008-07-23 0:49 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-21 4:28 Crash and stack trace for jbd2 under ext4 Shehjar Tikoo
2008-07-21 8:20 ` Aneesh Kumar K.V
2008-07-23 0:49 ` Mingming Cao [this message]
2008-07-23 0:51 ` [RFC]Ext4: journal credits reservation fixes for DIO, fallocate and delalloc writepages Mingming Cao
2008-07-23 1:18 ` Andreas Dilger
2008-07-23 18:19 ` Theodore Tso
2008-07-25 19:38 ` Mingming Cao
2008-07-23 7:42 ` Aneesh Kumar K.V
2008-07-24 2:07 ` Andreas Dilger
2008-07-25 19:26 ` Mingming Cao
2008-07-28 16:11 ` Aneesh Kumar K.V
2008-07-28 19:07 ` Mingming Cao
2008-07-29 6:24 ` Aneesh Kumar K.V
2008-07-26 0:42 ` [PATCH v2]Ext4: " Mingming Cao
2008-07-30 1:58 ` [PATCH v3]Ext4: " Mingming Cao
2008-07-30 11:29 ` Frédéric Bohé
2008-07-31 18:07 ` Mingming Cao
2008-08-01 5:49 ` Theodore Tso
2008-08-01 10:51 ` Frédéric Bohé
2008-08-01 18:08 ` Mingming Cao
2008-08-01 18:03 ` Mingming Cao
2008-08-01 19:10 ` Theodore Tso
2008-08-02 0:03 ` Theodore Tso
2008-08-04 11:23 ` Frédéric Bohé
2008-08-04 13:20 ` Theodore Tso
2008-07-30 11:36 ` Andreas Dilger
2008-07-30 12:16 ` Aneesh Kumar K.V
2008-08-01 19:29 ` Theodore Tso
2008-08-02 0:22 ` Theodore Tso
2008-08-12 16:23 ` [PATCH 0/6 ]Ext4 journal credits reservation fixes Mingming Cao
2008-08-12 16:25 ` [PATCH 1/6 ]Ext4 credits caclulation cleanup and fix that for nonextent writepage Mingming Cao
2008-08-13 8:31 ` Aneesh Kumar K.V
2008-08-14 0:30 ` Mingming Cao
2008-08-13 10:19 ` Aneesh Kumar K.V
2008-08-14 1:02 ` Mingming Cao
2008-08-16 0:37 ` [PATCH 1/6 V2 " Mingming Cao
2008-08-12 16:27 ` [PATCH 2/6 ]Ext4: journal credits reservation fixes for extent file writepage Mingming Cao
2008-08-13 8:37 ` Aneesh Kumar K.V
2008-08-14 0:26 ` Mingming Cao
2008-08-14 8:28 ` Aneesh Kumar K.V
2008-08-16 0:38 ` [PATCH 2/6 V2]Ext4: " Mingming Cao
2008-08-16 4:25 ` Aneesh Kumar K.V
2008-08-12 16:29 ` [PATCH 3/6 ]Ext4: journal credits reservation fixes for DIO, fallocate Mingming Cao
2008-08-13 8:53 ` Aneesh Kumar K.V
2008-08-13 10:14 ` Aneesh Kumar K.V
2008-08-14 0:50 ` Mingming Cao
2008-08-16 0:39 ` [PATCH 3/6 V2 " Mingming Cao
2008-08-12 16:32 ` [PATCH 4/6 ]ext4: Rework the ext4_da_writepages Mingming Cao
2008-08-16 0:43 ` [PATCH 4/6 V2]ext4: " Mingming Cao
2008-08-12 16:35 ` [PATCH 5/6 ]Ext4 journal credits reservation fixes Mingming Cao
2008-08-13 9:46 ` Aneesh Kumar K.V
2008-08-14 1:01 ` Mingming Cao
2008-08-14 8:40 ` Aneesh Kumar K.V
2008-08-16 0:40 ` [PATCH 5/6 V2]Ext4 journal credits fixes for delalloc writepages Mingming Cao
2008-08-16 4:23 ` Aneesh Kumar K.V
2008-08-12 16:37 ` [PATCH 6/6 ]Ext4 journal credits reservation fixes for defrag Mingming Cao
2008-08-16 0:45 ` [PATCH 6/6 V2]Ext4 " Mingming Cao
2008-08-16 15:55 ` Theodore Tso
2008-08-15 17:33 ` [PATCH 0/6 ]Ext4 journal credits reservation fixes Aneesh Kumar K.V
2008-08-15 19:02 ` Mingming Cao
2008-08-16 0:34 ` Mingming Cao
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