On Fri, 19 Apr 2024 17:32:57 +0800, linan666@xxxxxxxxxxxxxxx wrote:
> In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which
> is intended to confirm iocg is avitve when it has debt. However, warn
> can be triggered during a blkcg or disk is being removed, as
> iocg_waitq_timer_fn() is awakened at that time.
>
> WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190
> Call trace:
> iocg_pay_debt+0x14c/0x190
> iocg_kick_waitq+0x438/0x4c0
> iocg_waitq_timer_fn+0xd8/0x130
> __run_hrtimer+0x144/0x45c
> __hrtimer_run_queues+0x16c/0x244
> hrtimer_interrupt+0x2cc/0x7b0
> ps: This issue was got in linux 5.10, but it also exists in the mainline.
>
> [...]
Applied, thanks!
[1/1] blk-iocost: do not WARNING if iocg has already offlined
commit: 01bc4fda9ea0a6b52f12326486f07a4910666cf6
Best regards,
--
Jens Axboe
