On Tue, Apr 22, 2025 at 05:11:27AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: a33b5a08cbbd Merge tag 'sched_ext-for-6.15-rc3-fixes' of g.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1058f26f980000 > kernel config: https://syzkaller.appspot.com/x/.config?x=85dd0f8b81b9d41f > dashboard link: https://syzkaller.appspot.com/bug?extid=81fdaf0f522d5c5e41fb > compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 > > Unfortunately, I don't have any reproducer for this issue yet. > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/718e6f7bde0a/disk-a33b5a08.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/20f5e402fb15/vmlinux-a33b5a08.xz > kernel image: https://storage.googleapis.com/syzbot-assets/2dd06e277fc7/bzImage-a33b5a08.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+81fdaf0f522d5c5e41fb@xxxxxxxxxxxxxxxxxxxxxxxxx > > ================================================================== > BUG: KCSAN: data-race in choose_mountpoint_rcu / umount_tree Benign, as this would be detected by the changed sequence count of @mount_lock. I hope we won't end up with endless reports about:w anything that we protect with a seqlock. That'll be very annoying.
