syzbot


INFO: rcu detected stall in call_timer_fn (2)
Status: upstream: reported C repro on 2019/09/15 17:29
Reported-by: syzbot+f33388c0f89e31abe109@syzkaller.appspotmail.com
First crash: 163d, last: 3d15h

Cause bisection: the bug happens on the oldest tested release
Crash: INFO: rcu detected stall in corrupted (log)
Repro: C syz .config

Fix bisection: failed (bisect log)
similar bugs (4):
Kernel Title Repro Bisected Count Last Reported Patched Status
linux-4.19 INFO: rcu detected stall in call_timer_fn (2) 4 1d00h 17d 0/1 upstream: reported on 2020/02/04 10:04
upstream INFO: rcu detected stall in call_timer_fn 2 496d 509d 0/17 closed as dup on 2019/01/02 16:26
linux-4.19 INFO: rcu detected stall in call_timer_fn 1 157d 157d 0/1 auto-closed as invalid on 2020/01/15 18:43
linux-4.14 INFO: rcu detected stall in call_timer_fn 2 6d06h 50d 0/1 upstream: reported on 2020/01/03 00:07

Sample crash report:

Crashes (9):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-root 2019/09/11 14:56 upstream 3120b9a6 a60cb4cd .config log report syz C bp@alien8.de, cai@lca.pw, drake@endlessm.com, hpa@zytor.com, jacob.jun.pan@linux.intel.com, linux-kernel@vger.kernel.org, mhocko@suse.com, mingo@redhat.com, puwen@hygon.cn, tglx@linutronix.de, x86@kernel.org
ci-upstream-kasan-gce-smack-root 2020/02/18 10:23 upstream 11a48a5a 1ce142dc .config log report bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, x86@kernel.org
ci-upstream-kasan-gce-smack-root 2020/02/04 16:24 upstream 322bf2d3 93e5e335 .config log report bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, tony.luck@intel.com, x86@kernel.org
ci-upstream-kasan-gce-selinux-root 2020/02/03 08:30 upstream 46d6b7be 93e5e335 .config log report bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, tony.luck@intel.com, x86@kernel.org
ci-upstream-kasan-gce 2020/01/26 06:11 upstream 2821e26f f4e7270e .config log report bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, tony.luck@intel.com, x86@kernel.org
ci-upstream-kasan-gce-selinux-root 2020/01/13 01:36 upstream 040a3c33 53faa9fe .config log report bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, tony.luck@intel.com, x86@kernel.org
ci-qemu-upstream 2019/11/29 10:50 upstream 81b6b964 4f7e1d0f .config log report bp@alien8.de, hpa@zytor.com, jacob.jun.pan@linux.intel.com, jbeulich@suse.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, sean.j.christopherson@intel.com, tglx@linutronix.de, tony.luck@intel.com, wangkefeng.wang@huawei.com, x86@kernel.org
ci-upstream-kasan-gce-root 2019/09/28 08:47 upstream 8f744bde d8074e0b .config log report bp@alien8.de, drake@endlessm.com, hpa@zytor.com, jacob.jun.pan@linux.intel.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, sean.j.christopherson@intel.com, tglx@linutronix.de, tony.luck@intel.com, x86@kernel.org
ci-upstream-kasan-gce-386 2020/01/30 22:10 upstream 39bed42d 5ed23f9a .config log report bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, tony.luck@intel.com, x86@kernel.org