On Wed, 13 Mar 2024 at 14:14, Amir Goldstein <amir73il@xxxxxxxxx> wrote: > The reason for this report is calling llseek() on lower ovl from > ovl_copy_up_data() when ovl_copy_up_data() is called with upper > inode lock and the lower ovl uses the same upper fs. > > It looks to me like the possible deadlock should have been solved by commit > c63e56a4a652 ovl: do not open/llseek lower file with upper sb_writers held > that moved ovl_copy_up_data() out of the inode_lock() scope. That commit is in v6.7, so something different must be happening on v6.8-rc1. Simone, please send a new report for v6.8-rc1 if a lockdep splat can be reproduced on that kernel. Thanks, Miklos
