On Thu 26-04-18 22:29:17, LEROY Christophe wrote: > Michal Hocko <mhocko@xxxxxxxxxx> a écrit : [...] > > Yes, show_migration_types. But I do not see why unmovable pageblocks > > should block the allocation. This is a GFP_KERNEL allocation request > > essentially - thus unmovable itself. This smells like a bug. We are way > > above reserves which could block the allocation. > > Any suggestion on how to investigate that bug ? Anything to trace ? try to enable allocator and vmscan tracepoints. Maybe it will tell something. -- Michal Hocko SUSE Labs
