On Thu, Nov 20, 2014 at 02:04:26PM +0000, Joe Thornber wrote: > On Wed, Nov 19, 2014 at 07:39:44PM -0200, Leonardo Santos wrote: > > After run regression tests using 'git bisect', I identify that the error > > was created after commit 8c081b52c6833a30a69ea3bdcef316eccc740c87 > > > > To reproduce this error just: > > - create a raid1 HDDs for origin device; > > - create a cache device with SSDs (could or not be raid) > > - create a metadata device with SSDs (could or not be raid) > > - create a cache device using prior devices > > - kernel crashes. > > > > @@ -1115,8 +1142,7 @@ static void check_for_quiesced_migrations(struct cache *cache, > > return; > > > > INIT_LIST_HEAD(&work); > > - if (pb->all_io_entry) > > - dm_deferred_entry_dec(pb->all_io_entry, &work); > > + dm_deferred_entry_dec(pb->all_io_entry, &work); > > > > if (!list_empty(&work)) > > queue_quiesced_migrations(cache, &work); > > This looks suspicious, I believe the all_io_entry is not set if the io > covers a complete block. Any chance you could test with this fragment > backed out please? Ignore me, there's another check for !pb->all_io_entry. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
