On Mon, Aug 15, 2016 at 6:22 PM, Bart Van Assche <bart.vanassche@xxxxxxxxxxx> wrote: > On 08/15/2016 09:01 AM, Jinpu Wang wrote: >> >> It's more likely you hit another bug, my colleague Roman fix that: >> >> http://www.spinics.net/lists/linux-block/msg04552.html > > > Hello Jinpu, > > Interesting. However, I see that wrote the following: "Firstly this wrong > sequence raises two kernel warnings: 1st. WARNING at > lib/percpu-recount.c:309 percpu_ref_kill_and_confirm called more than once > 2nd. WARNING at lib/percpu-refcount.c:331". I haven't seen any of these > kernel warnings ... > > Thanks, > > Bart. > The warning happened from time to time, but your hung tasks are similar with ours. We injected some delay in order to reproduce easily. -- Mit freundlichen Grüßen, Best Regards, Jack Wang Linux Kernel Developer Storage ProfitBricks GmbH The IaaS-Company. ProfitBricks GmbH Greifswalder Str. 207 D - 10405 Berlin Tel: +49 30 5770083-42 Fax: +49 30 5770085-98 Email: jinpu.wang@xxxxxxxxxxxxxxxx URL: http://www.profitbricks.de Sitz der Gesellschaft: Berlin. Registergericht: Amtsgericht Charlottenburg, HRB 125506 B. Geschäftsführer: Andreas Gauger, Achim Weiss. -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
