> Il giorno 13 nov 2019, alle ore 23:46, Jens Axboe <axboe@xxxxxxxxx> ha scritto: > > On 11/13/19 10:42 AM, Paolo Valente wrote: >> >> >>> Il giorno 13 nov 2019, alle ore 16:01, Oleksandr Natalenko <oleksandr@xxxxxxxxxxxxxx> ha scritto: >>> >>> On 13.11.2019 15:25, Oleksandr Natalenko wrote: >>>> I didn't try to switch schedulers, but what I see now is once the >>>> system is able to boot with BFQ, the I/O can still hang on I/O burst >>>> (which for me happens to happen during VM reboot). >>>> This may also not hang forever, but just slow down considerably. I've >>>> noticed this inside a KVM VM, not on a real HW. >>> >>> Possible call traces: >> >> Ok, you may have given me enough information, thank you very much. >> >> Could you please apply the attached (compressed) patch on top of my >> offending patch? For review purposes, here is the simple change: > > FWIW, I dropped the previous patch. > Thanks. I'm sending a V2. Thanks, Paolo > -- > Jens Axboe
