On Tue, Nov 12, 2024 at 3:24 AM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: > > On Thu, Nov 07 2024 at 13:00, syzbot wrote: > > syzbot has bisected this issue to: > > > > commit 4febce44cfebcb490b196d5d10ae9f403ca4c956 > > Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > > Date: Tue Oct 1 08:42:03 2024 +0000 > > > > posix-timers: Cure si_sys_private race > > > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=129f2d87980000 > > start commit: f9f24ca362a4 Add linux-next specific files for 20241031 > > git tree: linux-next > > console output: https://syzkaller.appspot.com/x/log.txt?x=169f2d87980000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=328572ed4d152be9 > > dashboard link: https://syzkaller.appspot.com/bug?extid=b506de56cbbb63148c33 > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1387655f980000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11ac5540580000 > > > > Reported-by: syzbot+b506de56cbbb63148c33@xxxxxxxxxxxxxxxxxxxxxxxxx > > Fixes: 4febce44cfeb ("posix-timers: Cure si_sys_private race") > > > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection > > I seriously doubt that this bisection is even remotely correct. > > This commit has absolutely nothing to do with the lockdep splat and > trie_delete_elem(). Yes, the bisection is wrong, please ignore it. I've added this case to the issue that tracks the underlying problem: https://github.com/google/syzkaller/issues/5414 -- Aleksandr > > Thanks, > > tglx > > --
