syzbot


possible deadlock in scheduler_tick
Status: upstream: reported C repro on 2021/03/24 06:44
Reported-by: syzbot+b282b65c2c68492df769@syzkaller.appspotmail.com
Fix commit: a83829f56c7c KVM: x86: disable interrupts while pvclock_gtod_sync_lock is taken
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 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-arm32]
First crash: 134d, last: 118d

Cause bisection: failed (bisect log)
duplicates (1):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
possible deadlock in kvm_synchronize_tsc C unreliable 4 133d 130d 0/22 closed as dup on 2021/03/24 12:17

Sample crash report:

Crashes (99):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-386 2021/03/20 17:46 upstream 1c273e10bc0c 17810eae .config log report syz C possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/04/02 02:08 upstream ffd9fb546d49 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/04/01 20:13 upstream ffd9fb546d49 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/04/01 19:12 upstream ffd9fb546d49 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/04/01 05:49 upstream d19cc4bfbff1 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/04/01 04:11 upstream d19cc4bfbff1 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/31 20:32 upstream 5e46d1b78a03 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/31 13:37 upstream 5e46d1b78a03 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/31 12:15 upstream 5e46d1b78a03 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/31 10:14 upstream 2bb25b3a748a 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/31 08:43 upstream 2bb25b3a748a 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/30 07:46 upstream 1e43c377a79f 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/29 20:57 upstream 1e43c377a79f 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/29 14:01 upstream a5e13c6df0e4 a8529b82 .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-selinux-root 2021/03/29 04:44 upstream 81b1d39fd39a a8529b82 .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/26 19:25 upstream db24726bfefa a8529b82 .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/26 17:40 upstream db24726bfefa a8529b82 .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/26 11:05 upstream db24726bfefa 6a383ecf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/25 19:46 upstream e138138003eb 6a383ecf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/25 18:42 upstream e138138003eb 6a383ecf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/24 20:53 upstream 4ee998b0ef8b 607e3baf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/24 18:09 upstream 7acac4b3196c 607e3baf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/24 15:20 upstream 7acac4b3196c 607e3baf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/23 20:30 upstream 7acac4b3196c e613994b .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/23 18:12 upstream 7acac4b3196c e613994b .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/23 17:01 upstream 84196390620a e613994b .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-smack-root 2021/03/23 16:05 upstream 84196390620a e613994b .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/23 02:04 upstream 84196390620a 8092f30d .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-selinux-root 2021/03/23 01:06 upstream 84196390620a 8092f30d .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce 2021/03/20 06:40 upstream 1c273e10bc0c 3d01c4de .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/31 15:36 upstream 5e46d1b78a03 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/30 22:34 upstream 2bb25b3a748a 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/29 23:06 upstream 1e43c377a79f 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/29 16:24 upstream a5e13c6df0e4 a8529b82 .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/29 01:19 upstream 36a14638f7c0 a8529b82 .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/28 22:37 upstream 36a14638f7c0 a8529b82 .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/27 10:42 upstream 0f4498cef9f5 a8529b82 .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/27 09:17 upstream 0f4498cef9f5 a8529b82 .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/26 15:28 upstream db24726bfefa a8529b82 .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/26 10:21 upstream db24726bfefa 6a383ecf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/26 09:16 upstream db24726bfefa 6a383ecf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/26 08:09 upstream db24726bfefa 6a383ecf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/25 21:05 upstream e138138003eb 6a383ecf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/25 09:56 upstream 4ee998b0ef8b 607e3baf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/25 00:47 upstream 4ee998b0ef8b 607e3baf .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/23 22:51 upstream 7acac4b3196c e613994b .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/23 21:49 upstream 7acac4b3196c e613994b .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/23 21:27 upstream 7acac4b3196c e613994b .config log report info possible deadlock in scheduler_tick
ci-upstream-kasan-gce-386 2021/03/23 16:49 upstream 84196390620a e613994b .config log report info possible deadlock in scheduler_tick
ci-upstream-linux-next-kasan-gce-root 2021/04/05 05:15 linux-next 454c576c3f5e 6a81331a .config log report info possible deadlock in scheduler_tick
ci-upstream-linux-next-kasan-gce-root 2021/03/25 07:43 linux-next 20f1b5f9c07c 607e3baf .config log report info possible deadlock in scheduler_tick