syzbot


INFO: task hung in __lru_add_drain_all
Status: upstream: reported C repro on 2021/09/03 08:32
Reported-by: syzbot+a9b681dcbc06eb2bca04@syzkaller.appspotmail.com
First crash: 148d, last: 3h09m

Cause bisection: introduced by (bisect log) :
commit 997acaf6b4b59c6a9c259740312a69ea549cc684
Author: Mark Rutland <mark.rutland@arm.com>
Date: Mon Jan 11 15:37:07 2021 +0000

  lockdep: report broken irq restoration

Crash: WARNING in kvm_wait (log)
Repro: C syz .config
Patch testing requests:
Created Duration User Patch Repo Result
2021/09/05 02:21 14m hdanton@sina.com patch upstream report log
2021/09/04 08:07 14m hdanton@sina.com patch upstream report log
2021/09/04 00:57 14m hdanton@sina.com upstream report log
2021/09/03 11:10 15m hdanton@sina.com patch git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git c7d102232649 report log

Sample crash report:

Crashes (24):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-this-kasan-gce 2021/08/01 20:18 net c7d102232649 6c236867 .config log report syz C INFO: task hung in __lru_add_drain_all
ci-upstream-kasan-gce 2021/08/30 10:26 upstream 90ac80dcd313 be2c130d .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-kasan-gce-root 2021/08/01 11:28 upstream f3438b4c4e69 6c236867 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-kasan-gce 2021/07/24 23:52 upstream f0fddcec6b62 4d1b57d4 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-kasan-gce-386 2021/09/12 02:15 upstream c605c39677b9 5ae8508a .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/10/15 16:20 bpf 732b74d64704 0c5d9412 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-net-this-kasan-gce 2021/10/15 16:17 net ec681c53f8d2 0c5d9412 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/10/03 05:35 bpf b0e875bac0fa db0f5787 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/10/03 03:30 bpf b0e875bac0fa db0f5787 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/09/20 03:27 bpf bc23f7244817 70b76c1d .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/09/12 02:14 bpf 57f780f1c433 5ae8508a .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/06/09 09:03 bpf 11fc79fc9f2e 5c2fe346 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/06/08 20:40 bpf 11fc79fc9f2e b718257f .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/05/27 01:09 bpf f5d287126f63 858ea628 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-kasan-gce 2021/05/23 11:58 bpf 84316ca4e100 3c7fef33 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-next-kasan-gce 2021/10/07 05:09 bpf-next 9d0578722391 62ee0987 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-net-kasan-gce 2021/09/19 05:02 net-next 983e59a27b92 70b76c1d .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-next-kasan-gce 2021/09/04 02:47 bpf-next a16ef91aa61a d236a457 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-next-kasan-gce 2021/07/23 12:03 bpf-next 724f17b7d45d bc5f1d88 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-net-kasan-gce 2021/07/05 10:03 net-next 5e437416ff66 55aa55c2 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-net-kasan-gce 2021/07/01 07:54 net-next dbe69e433722 38a885d1 .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-next-kasan-gce 2021/05/19 23:48 bpf-next 5d67f349590d a343ba6b .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-bpf-next-kasan-gce 2021/05/19 22:14 bpf-next 1a532eb28df3 a343ba6b .config log report info INFO: task hung in __lru_add_drain_all
ci-upstream-linux-next-kasan-gce-root 2021/09/25 12:42 linux-next 5a5d008887b4 8cac236e .config log report info INFO: task hung in __lru_add_drain_all