On Wed, Apr 10, 2013 at 04:34:03PM +0200, Jan Schmidt wrote:
> I was running fsstress to trigger a tree mod log problem on a current kernel
> with some custom debug patches applied, so if anyone looking at this needs any
> line numbers let me know:
>
> <4>[ 1221.749586] [ INFO: possible circular locking dependency detected ]
> <4>[ 1221.749589] 3.8.0+ #9 Not tainted
> <4>[ 1221.749590] -------------------------------------------------------
> <4>[ 1221.749591] fsstress/3108 is trying to acquire lock:
> <4>[ 1221.749592] (sb_internal){.+.+..}, at: [<ffffffffa0183cde>] start_transaction+0x2de/0x4f0 [btrfs]
> <4>[ 1221.749614]
> <4>[ 1221.749614] but task is already holding lock:
> <4>[ 1221.749616] (&fs_info->ordered_operations_mutex){+.+...}, at: [<ffffffffa019c089>] btrfs_wait_ordered_extents+0x49/0x270 [btrfs]
I've seen and reported this warning a few days ago on IRC, Josef sent me
some patches to test, but it's not fixed yet.
david
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