kernel BUG at fs/dcache.c:1363 (from cgroup)
lizf at cn.fujitsu.com
Thu Jan 13 21:29:34 PST 2011
Al Viro wrote:
> On Fri, Jan 14, 2011 at 12:56:17PM +0800, Li Zefan wrote:
>> Just mount the cgroupfs:
>> # mount -t cgroup -o cpuset xxx /mnt
>> The bug is caused by:
>> commit 0df6a63f8735a7c8a877878bc215d4312e41ef81
>> Author: Al Viro <viro at zeniv.linux.org.uk>
>> Date: Tue Dec 21 13:29:29 2010 -0500
>> switch cgroup
>> switching it to s_d_op allows to kill the cgroup_lookup() kludge.
>> Signed-off-by: Al Viro <viro at zeniv.linux.org.uk>
>> This line:
>> + sb->s_d_op = &cgroup_dops;
> Oh, crap... Right, it's using simple_lookup(). Let me check if anything
> else might be stepping on that.
> Umm... There's a very strange codepath in btrfs that also might.
> Interesting. Fix for cgroup, AFAICS, should be this:
patch tested. thanks!
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