From: Ted Ts'o <tytso@mit.edu>
To: Robin Dong <hao.bigrat@gmail.com>
Cc: linux-ext4@vger.kernel.org, Robin Dong <sanbai@taobao.com>
Subject: Re: [PATCH 2/2 bigalloc] ext4: modify offset to cluster in ext4_valid_block_bitmap
Date: Wed, 10 Aug 2011 22:51:52 -0400 [thread overview]
Message-ID: <20110811025152.GD3625@thunk.org> (raw)
In-Reply-To: <1312429682-16970-1-git-send-email-hao.bigrat@gmail.com>
On Thu, Aug 04, 2011 at 11:48:01AM +0800, Robin Dong wrote:
> From: Robin Dong <sanbai@taobao.com>
>
> When I run a test application on ext4 of bigalloc, and also a daemon
> which run "echo 3 > /proc/sys/vm/drop_caches" every 2 seconds,
> the kernel report:
>
> 15319.557145] EXT4-fs error (device sda4): ext4_valid_block_bitmap:324: comm dir_tree: Invalid block bitmap - block_group = 6, block = 3145730
>
> The reason is ext4_valied_block_bitmap has not be modified for cluster.
>
> Signed-off-by: Robin Dong <sanbai@taobao.com>
> Cc: Ted Ts'o <tytso@mit.edu>
Yep, this looks like a bug --- I'm curious, though --- this is
something I don't run into because I use mke2fs -t ext4 which sets the
flex_bg feature. Is there some reason you're not using flex_bg on
your file systems?
- Ted
prev parent reply other threads:[~2011-08-11 2:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-04 3:48 [PATCH 2/2 bigalloc] ext4: modify offset to cluster in ext4_valid_block_bitmap Robin Dong
2011-08-04 3:48 ` [PATCH 1/2 bigalloc] e2fsprogs: remove wrong EXT2FS_C2B in check_block_end Robin Dong
2011-08-11 2:49 ` Ted Ts'o
2011-08-12 3:44 ` Robin Dong
2011-08-11 2:51 ` Ted Ts'o [this message]
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