On 13/05/2020 14:17, Johannes Thumshirn wrote: [...] >>> >> This doesn't make sense. >> >> That line doesn't even call read_tree_block() nor even any function call. >> >> This looks really strange. > > Indeed, it does. I have no clue what's going on here. > I just retested without KASAN enabled (to rule out any problems in that area) and the test (btrfs/028) passes. Turning KASAN back on fails the test again. So I /suspect/ it's a race somewhere and changed timing (due to KASAN) triggers it.
