On Thu, Feb 12, 2015 at 10:47:10AM -0500, Rik van Riel wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 02/12/2015 10:42 AM, Frederic Weisbecker wrote: > > On Wed, Feb 11, 2015 at 02:43:19PM -0500, Rik van Riel wrote: > >> If exception_enter happens when already in IN_KERNEL state, the > >> code still calls context_tracking_exit, which ends up in > >> rcu_eqs_exit_common, which explodes with a WARN_ON when it is > >> called in a situation where dynticks are not enabled. > > > > Fortunately context_tracking_exit() already has a current_state == > > IN_KERNEL check so this shouldn't be a problem. > > No, it had a hard-coded "current_state == IN_USER" check, > which is very close, but ... > > ... I replaced that with a state argument, and forgot to > ensure that it never gets called with state == IN_KERNEL. > This patch fixes that. Ah that's right! Well I'm going to merge this patch to 1/5 then to avoid breaking bisection. Thanks. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
