On Wed, Mar 30, 2016 at 7:25 PM, Liu Bo wrote:
> On Wed, Mar 30, 2016 at 05:24:04PM +0200, Ilya Dryomov wrote:
>> Hi,
>>
>> We are hitting the attached lockup on a somewhat regular basis during
>> nightly tests. Looks like a bunch of CPUs spin in find_free_extent()
>> on btrfs_free_cluster::lock,
On Wed, Mar 30, 2016 at 05:24:04PM +0200, Ilya Dryomov wrote:
> Hi,
>
> We are hitting the attached lockup on a somewhat regular basis during
> nightly tests. Looks like a bunch of CPUs spin in find_free_extent()
> on btrfs_free_cluster::lock, which is held by writer, who seems to be
> stuck in a
Hi,
We are hitting the attached lockup on a somewhat regular basis during
nightly tests. Looks like a bunch of CPUs spin in find_free_extent()
on btrfs_free_cluster::lock, which is held by writer, who seems to be
stuck in an endless loop in btrfs_find_space_cluster(), trying to
cleanup bitmaps li