Re: KASAN splat during mount on 5.4.5, no reproducer

David Sterba
2020-01-20T19:47:12Z

On Sat, Dec 28, 2019 at 03:03:26PM -0500, Zygo Blaxell wrote:
>
> [...etc...it dumps the same stacks again in the BUG]
>
> The deepest level of fs/btrfs code is the list_del_init in
> clean_dirty_subvols.
>
> After a reboot the next mount (and all subsequent mounts so far)
> was successful. I don't have a reproducer.

For the record, this and other KASAN reports regarding reloc root, is
going to be fixed in 5.4.14, "btrfs: relocation: fix reloc_root lifespan
and access" (6282675e6708ec78). Thanks for the reports and debugging
help.