Re: Bisected GFP in bfq_bfqq_expire on v5.1-rc1

Dmitrii Tcvetkov
2019-04-01T09:22:42Z

On Mon, 1 Apr 2019 11:01:27 +0200
Paolo Valente <paolo.valente@linaro.org> wrote:
> Ok, thank you. Could you please do a
>
> list *(bfq_bfqq_expire+0x1f3)
>
> for me?
>
> Thanks,
> Paolo
>
> >
> > <gpf.txt><gpf-w-bfq-group-iosched.txt><config.txt>

Reading symbols from vmlinux...done.
(gdb) list *(bfq_bfqq_expire+0x1f3)
0xffffffff813d02c3 is in bfq_bfqq_expire (block/bfq-iosched.c:3390).
3385 * even in case bfqq and thus parent entities go on receiving
3386 * service with the same budget.
3387 */
3388 entity = entity->parent;
3389 for_each_entity(entity)
3390 entity->service = 0;
3391 }
3392
3393 /*
3394 * Budget timeout is not implemented through a dedicated timer, but