syzbot


INFO: task hung in synchronize_rcu (3)
Status: upstream: reported C repro on 2020/07/22 18:22
Reported-by: syzbot+0c6da80218456f1edc36@syzkaller.appspotmail.com
First crash: 324d, last: 12d

Cause bisection: introduced by (bisect log):

commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22
Author: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Date: Sat Sep 29 00:59:43 2018 +0000

  tc: Add support for configuring the taprio scheduler

Crash: INFO: rcu detected stall in smp_call_function (log)
Repro: C syz .config
similar bugs (6):
Kernel Title Repro Bisected Count Last Reported Patched Status
android-49 INFO: task hung in synchronize_rcu 1 326d 326d 0/3 auto-closed as invalid on 2020/03/28 16:57
linux-4.14 INFO: task hung in synchronize_rcu C 59 1d17h 348d 0/1 upstream: reported C repro on 2019/11/07 04:32
linux-4.19 INFO: task hung in synchronize_rcu 11 5d15h 346d 0/1 upstream: reported on 2019/11/08 21:27
upstream INFO: task hung in synchronize_rcu syz cause 1206 326d 352d 15/17 fixed on 2019/11/29 15:48
android-414 INFO: task hung in synchronize_rcu 1 344d 344d 0/1 auto-closed as invalid on 2020/03/10 10:42
upstream INFO: task hung in synchronize_rcu (2) 8 325d 326d 0/17 closed as invalid on 2019/11/30 16:54

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info
ci-upstream-kasan-gce-386 2020/08/21 00:30 upstream da2968ff 21f1765e .config log syz C
Crashes (99):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-386 2020/07/22 00:02 upstream 4fa640dc 21f1765e .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2020/04/11 14:29 upstream 5b8b9d0c a8c6a3f8 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2020/01/28 11:06 upstream b0be0eff 56cd6c9b .config log report amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce 2020/01/22 16:40 upstream d96d875e 8eda0b95 .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-upstream-kasan-gce-root 2020/01/19 10:49 upstream 244dc268 bc8bc756 .config log report amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-root 2019/12/01 07:56 upstream 32ef9553 a76bf83f .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, kafai@fb.com, linux-kernel@vger.kernel.org, maximmi@mellanox.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, pabeni@redhat.com, songliubraving@fb.com, tglx@linutronix.de, willemb@google.com, yhs@fb.com, yuehaibing@huawei.com
ci-upstream-net-this-kasan-gce 2020/06/08 03:32 net 4d3da2d8 7751efd0 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-bpf-kasan-gce 2020/01/18 12:25 bpf 1712b2ff 3de7aabb .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, kafai@fb.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, willemb@google.com, yhs@fb.com
ci-upstream-net-kasan-gce 2020/10/08 07:27 net-next 9faebeb2 1880b4a9 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/10/07 09:20 net-next 9faebeb2 1880b4a9 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/10/07 01:38 net-next 8b0308fe 1880b4a9 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/10/06 18:43 net-next 8b0308fe 1880b4a9 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/10/06 12:44 net-next 8b0308fe 1880b4a9 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/10/03 12:54 net-next 678cdd49 2653fa43 .config log report info ast@kernel.org, daniel@iogearbox.net, davem@davemloft.net, gnault@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, nicolas.dichtel@6wind.com
ci-upstream-net-kasan-gce 2020/10/03 03:47 net-next 678cdd49 2653fa43 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/10/02 11:40 net-next 87d5034d 9602ddf4 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/10/02 08:13 net-next 87d5034d 9602ddf4 .config log report info davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-kasan-gce 2020/10/01 20:49 net-next 87d5034d 9602ddf4 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/10/01 17:44 net-next f2e83469 a9767fb2 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/10/01 15:05 net-next f2e83469 a9767fb2 .config log report info akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci-upstream-net-kasan-gce 2020/09/29 18:28 net-next 28009571 1b88c6d5 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/29 17:03 net-next bcbf1be0 1b88c6d5 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/28 23:51 net-next bcbf1be0 6bfdbe89 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/28 08:48 net-next 0675c285 6bfdbe89 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/27 20:31 net-next 435be28b 5dd8aee8 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/27 09:30 net-next 435be28b 5dd8aee8 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/27 08:19 net-next 435be28b 5dd8aee8 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/27 05:54 net-next 435be28b 5dd8aee8 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/27 01:48 net-next 435be28b 2d5ea0cb .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/26 23:58 net-next 435be28b 2d5ea0cb .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/26 14:28 net-next 6fba737a 2d5ea0cb .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/26 09:28 net-next 6fba737a 4a006f63 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/26 06:37 net-next 6fba737a 4a006f63 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/26 02:48 net-next aafe8853 4a006f63 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/25 18:25 net-next aafe8853 4a006f63 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/25 16:24 net-next aafe8853 4a006f63 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/25 06:53 net-next 3fc826f1 54289b08 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/25 05:14 net-next 3fc826f1 54289b08 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/24 17:07 net-next 1a26e88d 54289b08 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/24 09:28 net-next 1a26e88d 54289b08 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/23 18:41 net-next 748d1c8a 287cd75a .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/23 17:35 net-next 748d1c8a 287cd75a .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/23 07:19 net-next 748d1c8a 3e8f6c27 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/21 10:50 net-next 3cec0369 9e1fa68e .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/20 23:56 net-next dd92f179 9564d2e9 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/20 20:35 net-next dd92f179 9564d2e9 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/20 11:09 net-next dd92f179 53ce8104 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/20 01:39 net-next a5a3303e 53ce8104 .config log report info daniel@iogearbox.net, davem@davemloft.net, gnault@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, nicolas.dichtel@6wind.com
ci-upstream-net-kasan-gce 2020/09/19 22:14 net-next a5a3303e 53ce8104 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/19 20:29 net-next 0db0561d 53ce8104 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce 2020/09/19 09:39 net-next 0db0561d 53ce8104 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-bpf-next-kasan-gce 2020/01/27 06:04 bpf-next e9f02a80 dd56146d .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, kafai@fb.com, linux-kernel@vger.kernel.org, maowenan@huawei.com, netdev@vger.kernel.org, songliubraving@fb.com, willemb@google.com, yhs@fb.com
ci-upstream-linux-next-kasan-gce-root 2020/10/08 05:24 linux-next 8b787da7 1880b4a9 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/10/07 13:34 linux-next 8b787da7 1880b4a9 .config log report info davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/10/04 10:46 linux-next 2172e358 5ef9c291 .config log report info davem@davemloft.net, herbert@gondor.apana.org.au, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, steffen.klassert@secunet.com
ci-upstream-linux-next-kasan-gce-root 2020/10/01 11:00 linux-next de69ee6d a9767fb2 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/09/29 08:27 linux-next 663b07a4 1b88c6d5 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/09/21 13:41 linux-next b10b8ad8 9e1fa68e .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org