> I'm not sure if I understand. "letting the main thread create a dedicated > thread for error handling" is exactly what I was trying to do -- the > problem is that SIGBUS(BUS_MCEERR_AO) signals are never sent to that > thread, which is contrary to common expectations. Yes handling AO errors like this was the intended way I thought I had tested it at some point and intentionally changed the signal checking for this case (because normally SIGBUS cannot be blocked). Anyways if it doesn't work it's definitely a bug. If you fix it please make sure to add the test case to mce-test. -Andi -- 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>