On Wed, Jul 14, 2021 at 11:21:12AM +0800, Boyang Xue wrote:
> Hello,
>
> I'm not sure if this is the right place to report this bug, please
> correct me if I'm wrong.
>
> I found kernel-5.14.0-rc1 (built from the Linus tree) crash when it's
> running xfstests generic/256 on ext4 [1]. Looking at the call trace,
> it looks like the bug had been introduced by the commit
>
> c22d70a162d3 writeback, cgroup: release dying cgwbs by switching attached inodes
>
> It only happens on aarch64, not on x86_64, ppc64le and s390x. Testing
> was performed with the latest xfstests, and the bug can be reproduced
> on ext{2, 3, 4} with {1k, 2k, 4k} block sizes.
Hello Boyang,
thank you for the report!
Do you know on which line the oops happens?
I'll try to reproduce the problem. Do you mind sharing your .config, kvm options
and any other meaningful details?
Thank you!
Roman
