Hey, guys. cc'ing people from "workqueue, pci: INFO: possible recursive locking detected" thread.
http://thread.gmane.org/gmane.linux.kernel/1525779 So, to resolve that issue, we ripped out lockdep annotation from work_on_cpu() and cgroup is now experiencing deadlock involving work_on_cpu(). It *could* be that workqueue is actually broken or memcg is looping but it doesn't seem like a very good idea to not have lockdep annotation around work_on_cpu(). IIRC, there was one pci code path which called work_on_cpu() recursively. Would it be possible for that path to use something like work_on_cpu_nested(XXX, depth) so that we can retain lockdep annotation on work_on_cpu()? Thanks. -- tejun -- 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/
