syzbot


INFO: rcu detected stall in fq_pie_timer
Status: internal: reported C repro on 2021/06/23 07:36
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 61c2402665f1 net/sched: fq_pie: prevent dismantle issue
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-riscv64]
First crash: 219d, last: 21h27m

Cause bisection: failed (bisect log)

Sample crash report:

Crashes (35):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/12/31 06:18 upstream 74c78b4291b4 36bd2e48 .config log report syz C INFO: rcu detected stall in fq_pie_timer
ci-upstream-net-this-kasan-gce 2021/12/30 23:16 net f7397cd24c59 2e49f10d .config log report syz C INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/12/08 22:43 upstream 2a987e65025e a4a2a501 .config log report syz INFO: rcu detected stall in fq_pie_timer
ci-upstream-net-this-kasan-gce 2021/12/08 22:58 net b5bd95d17102 a4a2a501 .config log report syz INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2022/01/27 00:12 upstream 0280e3c58f92 2cbffd88 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2022/01/14 06:32 upstream 455e73a07f6e b8d780ab .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-root 2021/12/30 18:44 upstream eec4df26e24e 2e49f10d .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/12/19 23:52 upstream a76c3d035872 44068e19 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/12/13 10:19 upstream 2585cf9dfaad 49ca1f59 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-selinux-root 2021/12/08 18:20 upstream 2a987e65025e a4a2a501 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/12/08 18:00 upstream 2a987e65025e a4a2a501 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/12/05 22:02 upstream 944207047ca4 a617004c .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/12/04 21:48 upstream bbef3c7a63d2 a617004c .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/11/27 07:21 upstream c5c17547b778 63eeac02 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/11/20 00:28 upstream 4c388a8e740d 3a9d0024 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-selinux-root 2021/11/13 20:19 upstream a9b9669d9822 83f5c9b5 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-selinux-root 2021/11/12 16:16 upstream 5833291ab6de 83f5c9b5 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-selinux-root 2021/11/11 09:43 upstream debe436e77c7 75b04091 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/11/11 09:01 upstream debe436e77c7 75b04091 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-selinux-root 2021/11/08 14:37 upstream 6b75d88fa81b d29682f1 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/10/25 23:39 upstream c2b43854aad9 c1132b49 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/09/05 15:41 upstream 49624efa65ac d236a457 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-root 2021/09/01 20:39 upstream 835d31d319d9 7eb7e152 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-smack-root 2021/08/20 00:27 upstream f87d64319e6f b599f2fc .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-386 2022/01/15 03:26 upstream 112450df61b7 723cfaf0 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-386 2021/11/15 10:28 upstream fa55b7dcdc43 83f5c9b5 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-386 2021/11/04 21:27 upstream 7ddb58cb0eca 4c1be0be .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce-386 2021/06/22 19:21 upstream 0c18f29aae7c aba2b2fb .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-net-this-kasan-gce 2021/11/06 07:22 net a46a5036e7d2 4c1be0be .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-linux-next-kasan-gce-root 2022/01/19 08:32 linux-next 6f59bc242877 0620189b .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-linux-next-kasan-gce-root 2021/12/31 00:37 linux-next ea586a076e8a 36bd2e48 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-linux-next-kasan-gce-root 2021/12/15 17:51 linux-next ea922272cbe5 572bcb40 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-linux-next-kasan-gce-root 2021/09/14 15:17 linux-next 815c5020b5ab 07e953c1 .config log report info INFO: rcu detected stall in fq_pie_timer
ci-upstream-kasan-gce 2021/12/07 15:12 upstream cd8c917a56f2 0230ba3e .config log report info BUG: soft lockup in fq_pie_timer
ci-upstream-kasan-gce 2021/11/19 14:23 upstream 4c388a8e740d 3a9d0024 .config log report info BUG: soft lockup in fq_pie_timer