On Mon, 19 Mar 2012, Sasha Levin wrote: > lockdep listed all the held locks there. None of the locks listed are slub locks. > I've mentioned that it looks very similar to > https://lkml.org/lkml/2012/1/14/45 where the userspace helper tried to > read from the sysfs files, but got into a deadlock since the kernel > side held them before it called the usermode helper. Ah yes. In that case slub held a semaphore. Code was changed since then to no longer hold a semaphore when calling into sysfs. The uevent handler can execute arbitrary user space code. Do you have to hold locks while calling kmem_cache_destroy? -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
