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: 415d, last: 2h20m

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 Cause bisect Fix bisect Count Last Reported Patched Status
android-49 INFO: task hung in synchronize_rcu 1 416d 416d 0/3 auto-closed as invalid on 2020/03/28 16:57
linux-4.14 INFO: task hung in synchronize_rcu C error 78 2d20h 439d 0/1 upstream: reported C repro on 2019/11/07 04:32
linux-4.19 INFO: task hung in synchronize_rcu 13 10d 437d 0/1 upstream: reported on 2019/11/08 21:27
upstream INFO: task hung in synchronize_rcu syz done 1206 416d 443d 15/17 fixed on 2019/11/29 15:48
android-414 INFO: task hung in synchronize_rcu 1 435d 434d 0/1 auto-closed as invalid on 2020/03/10 10:42
upstream INFO: task hung in synchronize_rcu (2) 8 415d 416d 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 2020/11/07 08:02 upstream 659caaf6 21f1765e .config log syz C
ci-upstream-kasan-gce-386 2020/08/21 00:30 upstream da2968ff 21f1765e .config log syz C
Crashes (161):
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-bpf-next-kasan-gce 2021/01/19 08:56 bpf-next a2c2998d 63631df1 .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2021/01/10 07:20 upstream 2ff90100 2c1f2513 .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-kasan-gce-root 2021/01/02 23:56 upstream 3516bd72 79264ae3 .config log report info bristot@redhat.com, bsegall@google.com, dietmar.eggemann@arm.com, juri.lelli@redhat.com, linux-kernel@vger.kernel.org, mgorman@suse.de, mingo@redhat.com, peterz@infradead.org, rostedt@goodmis.org, vincent.guittot@linaro.org
ci-upstream-kasan-gce-selinux-root 2020/12/27 20:38 upstream f838f8d2 2242f77f .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2020/11/12 22:17 upstream af5043c8 77a55c8e .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
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 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 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-kasan-gce-386 2020/12/27 21:40 upstream f838f8d2 2242f77f .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-bpf-kasan-gce 2020/12/28 04:23 bpf a61daaf3 2242f77f .config log report info amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
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-next-kasan-gce 2021/01/16 01:18 bpf-next eed6a9a9 65a7a854 .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 2021/01/16 01:12 net-next e7fa5c80 65a7a854 .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 2021/01/05 20:57 bpf-next 482ec343 a0234d98 .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 2021/01/03 03:48 bpf-next 482ec343 79264ae3 .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 2021/01/02 11:19 bpf-next 482ec343 79264ae3 .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 2020/12/30 15:00 net-next 3db1a3fa ecb8c012 .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 2020/12/29 06:49 bpf-next 00a279e4 8259d56c .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 2020/12/17 00:15 bpf-next 3db1a3fa 04201c06 .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 2020/12/16 16:09 bpf-next 3db1a3fa f213e07e .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 2020/12/16 01:09 bpf-next 0e12c027 97183ed7 .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 2020/12/15 17:45 bpf-next 0e12c027 97183ed7 .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 2020/12/14 23:09 bpf-next 2e33f831 97183ed7 .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 2020/12/13 14:12 bpf-next b4fe9fec bca53db9 .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 2020/12/11 19:24 bpf-next b4fe9fec ba24ffcd .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 2020/12/09 02:17 bpf-next 2f4b0319 a7f7f4a4 .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 2020/12/08 20:42 net-next 8e98387b a7f7f4a4 .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 2020/12/08 10:49 bpf-next e1868b9e 51a9082e .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 2020/12/08 06:55 bpf-next e1868b9e 51a9082e .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 2020/12/06 22:59 bpf-next 34da8721 c521566d .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 2020/12/06 21:50 net-next 4054eebf c521566d .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 2020/12/06 16:23 bpf-next 34da8721 f12ba0c5 .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 2020/12/03 10:46 bpf-next 97306be4 e6b0d314 .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 2020/10/08 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-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