Re: generic/095 failing in ext4 and xfs

Luis Henriques
2021-10-06T13:39:58Z

(sorry for the delay in my replies)

On Mon, Oct 04, 2021 at 12:18:24PM -0400, Theodore Ts'o wrote:
> On Mon, Oct 04, 2021 at 01:17:02PM +0100, Luis Henriques wrote:
> >
> > Ok, I may have narrowed it a bit more. The disks being used in my testing
> > were zram-based (I know, I should have mentioned it before :-/ ). If I use
> > file-based disks the test passes and I see no crashes in fio.
>
> What was the last kernel version where it didn't crash for you? 5.14?

No, this is not a regression. I tried to go as far as 5.0 and I still get
the exact same behaviour. Also, I've tried fio 3.24 and it still
crashes.

So, this definitely looks like a zram issue. I've added the maintainers
to the CC list in case they have any ideas.

> And maybe we need to have a test which explicitly uses zram, since I
> suspect many/most of the fs developers who are running fstests aren't
> using zram....
>
> - Ted

Cheers,
--
Luís