> > It seems multiple processes deadlocked on the bd_mutex. > > Unfortunately there's no backtrace for the lock acquisitions, > > so it's hard to see the exact sequence. > > Well, all in the report points to a situation where some IO was submitted > to the block device and never completed (more exactly it took longer than > those 120s to complete that IO). It would need more digging into the Are you sure? I didn't think outstanding IO would take bd_mutex. -Andi
