On Fri, Jul 8, 2016 at 4:40 AM, Ilya Dryomov <idryomov@xxxxxxxxx> wrote: > On Fri, Jul 8, 2016 at 3:28 AM, Patrick McLean <patrickm@xxxxxxxxxx> wrote: >> This is on linus git master as of 2016/07/01 >> >> These appear to be two separate deadlocks, one on a a map operation, >> and one on an unmap operation. We can reproduce these pretty >> regularly, but it seems like there is some sort of race condition, as >> it happens no where near every time. >> > > It's a single deadlock between "rbd map" and a kworker thread, a later > "rbd unmap" is just a victim. > > Are you mapping the same image more than once? > We shouldn't be, there is a higher-level locking system that is supposed to prevent that. Thanks, Patrick -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
