CPU stuck for 67s (kernel BUG) + in xfs_trans_committed_bulk while deleting lots a files (mostly hard-links)

Wed Sep 7 06:37:23 CDT 2011

On Wed, Sep 07, 2011 at 01:04:54PM +0200, Jeroen Massar wrote:
> As partially mentioned in the kernel BUG message this is Debian's
> edition of linux-image-2.6.39-2-amd64 and according to the Debian
> changelogs nothing new has been introduced. 3.0.0-3 is available, but as
> kernel.org is down, bit hard to figure out what changes where made
> between those versions and if they can affect this at all...
> 
> Anybody any ideas? :)

You'll want at least commit 1316d4da3f632d5843d5a446203e73067dc40f09

	xfs: unpin stale inodes directly in IOP_COMMITTED

from kernel 3.0.  In addition commit 1d8c95a363bf8cd4d4182dd19c01693b635311c2

	xfs: use a cursor for bulk AIL insertion

from 3.1-rc should help even more with this workload.