syzbot


possible deadlock in register_netdev
Status: upstream: reported C repro on 2021/08/01 10:44
Reported-by: syzbot+ed8813d241a91de15965@syzkaller.appspotmail.com
First crash: 50d, last: 41d

Cause bisection: introduced by (bisect log) [no-op commit]:
commit b9fc8b4a591811546fec2dbef7e9f809362100c9
Author: Grant Seltzer <grantseltzer@gmail.com>
Date: Mon Feb 22 19:58:46 2021 +0000

  bpf: Add kernel/modules BTF presence checks to bpftool feature command

Crash: WARNING in kvm_wait (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) [no-op commit]:
commit a3af0140663dc335e5c18277a61bb99bfcb60694
Author: Emil Velikov <emil.velikov@collabora.com>
Date: Fri Jun 4 15:49:05 2021 +0000

  drm/i915: apply WaEnableVGAAccessThroughIOPort as needed


Sample crash report:

Crashes (104):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-kasan-gce 2021/07/28 14:11 net-next 3bdc70669eb2 17d6ab15 .config log report syz C possible deadlock in register_netdev
ci-upstream-bpf-next-kasan-gce 2021/08/06 23:17 bpf-next 579345e7f219 f9e341e3 .config log report info possible deadlock in register_netdev
ci-upstream-bpf-next-kasan-gce 2021/08/06 19:46 bpf-next 579345e7f219 f9e341e3 .config log report info possible deadlock in register_netdev
ci-upstream-bpf-next-kasan-gce 2021/08/05 06:27 bpf-next 372642ea83ff 7f7bb950 .config log report info possible deadlock in register_netdev
ci-upstream-bpf-next-kasan-gce 2021/08/05 00:56 bpf-next db517c8f8556 b97d64c9 .config log report info possible deadlock in register_netdev
ci-upstream-net-kasan-gce 2021/08/04 20:02 net-next c2eecaa193ff b97d64c9 .config log report info possible deadlock in register_netdev
ci-upstream-bpf-next-kasan-gce 2021/08/04 16:46 bpf-next db517c8f8556 b97d64c9 .config log report info possible deadlock in register_netdev
ci-upstream-bpf-next-kasan-gce 2021/08/04 13:18 bpf-next 83f31535565c 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-net-kasan-gce 2021/08/03 20:29 net-next 7cdd0a89ec70 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-net-kasan-gce 2021/08/03 10:56 net-next 7cdd0a89ec70 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-net-kasan-gce 2021/08/03 08:51 net-next 28814cd18cd7 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-net-kasan-gce 2021/08/03 04:48 net-next 28814cd18cd7 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-net-kasan-gce 2021/08/03 03:12 net-next 28814cd18cd7 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-net-kasan-gce 2021/08/02 11:04 net-next 3e12361b6d23 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-net-kasan-gce 2021/07/31 14:00 net-next 3e12361b6d23 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-net-kasan-gce 2021/07/28 10:32 net-next 3bdc70669eb2 17d6ab15 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/06 13:21 linux-next 8d4b477da1a8 f9e341e3 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/06 07:13 linux-next 8d4b477da1a8 d2d6e680 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/06 05:46 linux-next 8d4b477da1a8 d2d6e680 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/06 04:37 linux-next 8d4b477da1a8 d2d6e680 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/05 20:24 linux-next 8d4b477da1a8 d2d6e680 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/05 09:35 linux-next 8d4b477da1a8 7f7bb950 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/04 23:40 linux-next 8d4b477da1a8 b97d64c9 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/04 21:54 linux-next 8d4b477da1a8 b97d64c9 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/04 18:15 linux-next 8d4b477da1a8 b97d64c9 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/04 15:44 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/04 12:15 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/04 10:09 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/04 05:05 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/04 03:55 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/04 02:20 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/04 00:57 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/03 18:18 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/03 15:53 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/03 13:23 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/03 03:02 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/02 15:10 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/02 08:56 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/02 01:44 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/01 23:44 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/01 20:39 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/08/01 08:16 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/07/31 21:37 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/07/31 17:26 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/07/31 06:09 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/07/31 01:45 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/07/30 21:02 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev
ci-upstream-linux-next-kasan-gce-root 2021/07/30 19:51 linux-next 8d4b477da1a8 6c236867 .config log report info possible deadlock in register_netdev