Re: [PATCH] block: elevator: avoid to load iosched module from this disk

[Ming Lei <ming.lei@xxxxxxxxxx>]

On Sun, Sep 8, 2024 at 8:03 AM Damien Le Moal <dlemoal@xxxxxxxxxx> wrote:
>
> On 9/7/24 20:14, Richard W.M. Jones wrote:
> > On Sat, Sep 07, 2024 at 07:02:30PM +0800, Ming Lei wrote:
> >> BTW, the issue can be reproduced 100% by:
> >>
> >> echo "deadlock" > /sys/block/$ROOT_DISK/queue/scheduler
>
> This probably should be:
>
> echo "mq-deadline" > /sys/block/$ROOT_DISK/queue/scheduler

No, it is deliberately something not existing.

If it can't work, dropping cache can be added before the switching.

Thanks,