>> The problem was introduced in 6.4.0-rc7-next-20230619. I tried git bisect, but unsure of the >> result reported by it. Bisect points to following patch >> >> # git bisect bad >> 70c94cc2eefd4f98d222834cbe7512804977c2d4 is the first bad commit >> commit 70c94cc2eefd4f98d222834cbe7512804977c2d4 >> Merge: 48f5ee5c48c3 3fe08f7d5e80 >> Author: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> >> Date: Tue Jun 20 09:43:25 2023 +1000 >> >> Merge branch 'mm-everything' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm >> # Conflicts: >> # mm/mmap.c > > Usually bisect pointing to a merge means something has gone wrong with > the bisect. It's not impossible for a merge to be the cause of a bug, > but IME it's rare. > I have tried the bisect 3 times and the result was same. It always points to this merge commit. Is there anything else I can try to help debug this issue? -Sachin