On Tue, 23 Aug 2011, Konstantin Khlebnikov wrote: > All frozen tasks are unkillable, and if one of them has TIF_MEMDIE > we must kill something else to avoid deadlock. After this patch > select_bad_process() will skip frozen task before checking TIF_MEMDIE. > The caveat is that if the task in the refrigerator is not OOM_DISABLE and there are no other eligible tasks (system wide, in the cpuset, or in the memcg) to kill, then the machine will panic as a result of this when, in the past, we would simply issue the SIGKILL and keep looping in the page allocator until it is thawed. So you may actually be trading a stall waiting for this thread to thaw for what would now be a panic, and that's not clearly better to me. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>