On Mon, 08 Jan 2007 09:55:24 +0100, Jens Axboe said: > On Sat, Jan 06 2007, [EMAIL PROTECTED] wrote: > > On Thu, 04 Jan 2007 22:02:00 PST, Andrew Morton said: > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc 3/2.6.20-rc3-mm1/ > > > > With git-block.patch applied, my system locks up *hard* at system > > shutdown time - even alt-sysrq doesn't do anything. Need to do the > > "power button for 5" stunt to get the system back. > > Does this change anything? > > diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c > index ec40e44..bae57e0 100644 > --- a/block/ll_rw_blk.c > +++ b/block/ll_rw_blk.c > @@ -1542,7 +1542,7 @@ static inline void queue_sync_plugs(request_queue_t *q) > * If the current process is plugged and has barriers submitted, > * we will livelock if we don't unplug first. > */ > - blk_unplug_current(); > + blk_replug_current_nested(); > > synchronize_qrcu(&q->qrcu); > }
Nope, still hangs exactly the same way. Maybe I need to get the watchdog timer stuff working, and see if that can kick the system in a way that produces a backtrace....
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