On Tue, Dec 14, 2010 at 2:22 AM, Neil Brown <neilb@xxxxxxx> wrote: > > > Hi Linus, > here are a few bug fixes for md. > Some of the patches are actually clean-up rather than bug-fix, > but I that make the bugfix simpler to review. > > Thanks, > NeilBrown > > > The following changes since commit 6313e3c21743cc88bb5bd8aa72948ee1e83937b6: > > Merge branches 'x86-fixes-for-linus', 'perf-fixes-for-linus' and 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip (2010-12-08 06:40:59 -0800) > > are available in the git repository at: > > git://neil.brown.name/md/ for-linus > > NeilBrown (5): > md: remove handling of flush_pending in md_submit_flush_data > md: move code in to submit_flushes. > md: fix possible deadlock in handling flush requests. Hi Neil, Thanks for fixing this DM on MD flush issue. But my attempts to reproduce it have been unsuccessful. I've tried ext4 w/ barriers to a DM device above a 2 member MD RAID1. The DM device has a table with 2 linear targets to the same md0 device: # dmsetup table multiple_targets: 0 24576 linear 9:0 2048 multiple_targets: 24576 49152 linear 9:0 26624 No amount of IO with flushes has enabled me to hit a deadlock (in md_flush_request, md_write_start, etc). Do you have a simple reproducer for this issue? Mike -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
