syzbot


INFO: rcu detected stall in sys_exit_group (6)
Status: fixed on 2021/03/10 01:48
Reported-by: syzbot+f04854e1c5c9e913cc27@syzkaller.appspotmail.com
Fix commit: c583bcb8f5ed rcu: Don't invoke try_invoke_on_locked_down_task() with irqs disabled
First crash: 421d, last: 362d
similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in sys_exit_group (2) 56 663d 664d 0/22 closed as invalid on 2019/12/04 14:14
upstream INFO: rcu detected stall in sys_exit_group (3) 8 628d 628d 0/22 closed as invalid on 2020/01/08 05:23
upstream INFO: rcu detected stall in sys_exit_group (4) 13 628d 628d 0/22 closed as invalid on 2020/01/09 08:13
upstream INFO: rcu detected stall in sys_exit_group (5) 1 549d 549d 0/22 auto-closed as invalid on 2020/06/25 07:58
upstream INFO: rcu detected stall in sys_exit_group C done 1 744d 740d 14/22 fixed on 2019/10/09 10:54

Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/09/30 20:03 upstream 02de58b24d2e 8516f6d3 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/09/23 17:08 upstream 805c6d3c1921 287cd75a .config log report syz C
ci-upstream-kasan-gce 2020/08/24 11:00 upstream cb95712138ec cef5ae68 .config log report
ci-upstream-kasan-gce-root 2020/08/02 01:57 upstream d52daa8620c6 d895b3be .config log report