Re: cgroup/test_zswap failed with "zswpout does not increase after test program"

[Zenghui Yu]

Hi Michal,

On 7/7/26 8:01 PM, Michal Koutný wrote:
> Hello Zenghui.
> 
> On Tue, Jul 07, 2026 at 05:38:13PM +0800, Zenghui Yu <zenghui...@linux.dev> 
> wrote:
> > Hi,
> >
> > Running cgroup/test_zswap on my arm64 box failed immediately with:
> >
> >   [root@localhost cgroup]# ./test_zswap 
> >   TAP version 13
> >   1..8
> >   # zswpout does not increase after test program
> >   not ok 1 test_zswap_usage
> >   [...]
> 
> What version of the tests do you run?
> Namely, does it have the recent patches from Li [1]?

I use today's mm-new [*]

> 
> [1] 83476cc97bc63 ("Merge tag 'cgroup-for-7.2' of 
> git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup") v7.2-rc1~136

... so it should already be included.

[*] https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/log/?h=mm-new

Thanks,
Zenghui