On Fri, 2015-11-13 at 12:55 +0000, Yannis Aribaud wrote: > 13 novembre 2015 13:37 "Johannes Thumshirn" <jthumshirn@xxxxxxx> a > écrit: > > Hi Yannis, > > Hi Johannes, > > > [...] > > > > do you have a stacktrace, so we can see where it's locking up? > > There is no stack trace as the kernel isn't crashed. But the system > seems waiting for something that never happens and keep throwing the > same message to the console (BUG: soft lockup - CPU#22 stuck for > 23s!). > > I see. Can you then please force a panic on soft-lockup via softlockup_panic=1 passed to the kernel as a boot parameter or via sysctl -w kernel.softlockup_panic=1 on a running system. Without having any information on where it actually locked up, I see no chance for fixing it. Thanks, Johannes -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html