On Wed 26-08-15 16:28:52, Oleg Nesterov wrote: > Hi Michal, > > On 08/26, Michal Hocko wrote: > > > > I cannot seem to find any explicit note about task_lock vs. signal > > nesting nor task_lock() anywhere in kernel/signal.c so I rather ask. Can > > we call do_send_sig_info with task_lock held? > > Yes. > > Simply because task_lock() doesn't disable irqs and (unfortunately ;) > we do send the signals from interrupts. Good point. Thanks! -- Michal Hocko SUSE Labs -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>