On Mon, Nov 28, 2016 at 10:10 AM, Coly Li <colyli@xxxxxxx> wrote: > On 2016/11/28 下午5:02, Jinpu Wang wrote: >> On Mon, Nov 28, 2016 at 9:54 AM, Coly Li <colyli@xxxxxxx> wrote: >>> On 2016/11/28 下午4:24, Jinpu Wang wrote: >>>> snip >>>>>>> >>>>>>> every time nr_pending is 1 bigger then (nr_queued + 1), so seems we >>>>>>> forgot to increase nr_queued somewhere? >>>>>>> >>>>>>> I've noticed (commit ccfc7bf1f09d61)raid1: include bio_end_io_list in >>>>>>> nr_queued to prevent freeze_array hang. Seems it fixed similar bug. >>>>>>> >>>>>>> Could you give your suggestion? >>>>>>> >>>>>> Sorry, forgot to mention kernel version is 4.4.28 >>>>> >>>>> This commit is Cced to stable@xxxxxxxxxxxxxxx for v4.3+, do you use a >>>>> stable kernel or a distribution with 4.4.28 kernel ? >>>>> >>>>> Coly >>>>> >>>>> >>>> Hi Coly, >>>> >>>> I'm using Debian8 with 4.4.28 kernel. >>> >>> Hi Jinpu, >>> >>> Is it possible for your to run a upstream kernel or vanilla kernel to >>> test whether the issue still can be reproduced ? Then we can know >>> whether it is an upstream bug or a distro issue. >>> >>> Thanks. >>> >>> Coly >> >> Hi Coly, >> >> I did run kernel 4.4.34 (I download from kernel.org), I can reproduce >> the same bug. >> >> I can also try latest 4.8 or 4.9 rc kernel, if you think it's necessary? >> > Yes, please. If it can be reproduced on upstream kernel by a set of > scripts, it will be very helpful to debug and fix this issue. > > Thanks in advance. > > Coly Hi Coly, I tried with kernel 4.9-cr7, I can't reproduce it with my testcase anymore. It's hard to say the bug is fixed or harder to reproduce because code changed a lot. -- Jinpu Wang Linux Kernel Developer ProfitBricks GmbH Greifswalder Str. 207 D - 10405 Berlin Tel: +49 30 577 008 042 Fax: +49 30 577 008 299 Email: jinpu.wang@xxxxxxxxxxxxxxxx URL: https://www.profitbricks.de Sitz der Gesellschaft: Berlin Registergericht: Amtsgericht Charlottenburg, HRB 125506 B Geschäftsführer: Achim Weiss -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
