Re: Zram writeback feature unstable with heavy swap utilization - BUG: Bad page state in process...

From: Minchan Kim
Date: Fri Jul 27 2018 - 18:58:58 EST


On Fri, Jul 27, 2018 at 02:13:57PM +0200, Tino Lehnig wrote:
> On 07/27/2018 02:05 PM, Minchan Kim wrote:
> > And bad page is always with writeback enable?
> >
> > writeback enable means "echo "some dev" > /sys/block/zram0/backing_dev,
> > not just enable CONFIG_ZRAM_WRITEBACK.
>
> Yes, the bug only appears when backing_dev is set.

Thanks for the clarifiation.

I made a mistake on previous patch.
Could you test this patches?

>
> --
> Kind regards,
>
> Tino Lehnig