On Wed, May 21, 2014 at 02:52:55PM -0700, Andy Lutomirski wrote: > Why is it a problem if user_mode_vm(regs)? Conversely, why is sending > a signal a remotely reasonable thing to do if !user_mode_vm(regs)?
Let me quote Jiri: (1) task sends signal to itself (2) it acquires sighand->siglock so that it's able to queue the signal (3) MCE triggers (4) it tries to send a signal to the same task (5) it tries to acquire sighand->siglock and loops forever -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/