syzbot


WARNING in switched_to_dl

Status: auto-closed as invalid on 2019/09/21 17:27
Reported-by: syzbot+a308cdb8b371e3598cfa@syzkaller.appspotmail.com
First crash: 1953d, last: 1850d

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 2201 at kernel/sched/deadline.c:344 setup_new_dl_entity kernel/sched/deadline.c:344 [inline]
WARNING: CPU: 1 PID: 2201 at kernel/sched/deadline.c:344 switched_to_dl kernel/sched/deadline.c:1861 [inline]
WARNING: CPU: 1 PID: 2201 at kernel/sched/deadline.c:344 switched_to_dl+0x651/0x870 kernel/sched/deadline.c:1848
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 2201 Comm: syz-executor.5 Not tainted 4.9.165+ #26
 ffff88019fb67b58 ffffffff81b4ba01 0000000000000000 ffffffff82a39ba0
 00000000ffffffff 0000000000000001 0000000000000009 ffff88019fb67c38
 ffffffff813f90fa 0000000041b58ab3 ffffffff82e2e772 ffffffff813f8f21
Call Trace:
 [<ffffffff81b4ba01>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81b4ba01>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<ffffffff813f90fa>] panic+0x1d9/0x3bd kernel/panic.c:180
 [<ffffffff813f933b>] __warn.cold+0x2f/0x2f kernel/panic.c:546
 [<ffffffff810dac4d>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:589
 [<ffffffff811e82f1>] setup_new_dl_entity kernel/sched/deadline.c:344 [inline]
 [<ffffffff811e82f1>] switched_to_dl kernel/sched/deadline.c:1861 [inline]
 [<ffffffff811e82f1>] switched_to_dl+0x651/0x870 kernel/sched/deadline.c:1848
 [<ffffffff8116ad46>] check_class_changed kernel/sched/core.c:950 [inline]
 [<ffffffff8116ad46>] __sched_setscheduler+0x906/0x3060 kernel/sched/core.c:4389
 [<ffffffff8117ae9c>] sched_setattr kernel/sched/core.c:4442 [inline]
 [<ffffffff8117ae9c>] SYSC_sched_setattr kernel/sched/core.c:4616 [inline]
 [<ffffffff8117ae9c>] SyS_sched_setattr+0x25c/0x3d0 kernel/sched/core.c:4595
 [<ffffffff810056bd>] do_syscall_64+0x1ad/0x570 arch/x86/entry/common.c:285
 [<ffffffff8280c153>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (7):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/03/25 17:26 https://android.googlesource.com/kernel/common android-4.9 72b54df9a5ef 2c86e0a5 .config console log report ci-android-49-kasan-gce-root
2019/03/25 13:32 https://android.googlesource.com/kernel/common android-4.9 72b54df9a5ef 2c86e0a5 .config console log report ci-android-49-kasan-gce-root
2019/03/24 19:14 https://android.googlesource.com/kernel/common android-4.9 72b54df9a5ef acbc5b7d .config console log report ci-android-49-kasan-gce-root
2019/03/24 12:12 https://android.googlesource.com/kernel/common android-4.9 72b54df9a5ef acbc5b7d .config console log report ci-android-49-kasan-gce-root
2019/03/18 22:08 https://android.googlesource.com/kernel/common android-4.9 1597fdfe52ba 4656beca .config console log report ci-android-49-kasan-gce-root
2019/01/02 20:55 https://android.googlesource.com/kernel/common android-4.9 9f23a833fdcd f0491811 .config console log report ci-android-49-kasan-gce-root
2018/12/12 20:55 https://android.googlesource.com/kernel/common android-4.9 605e2ec6d679 c3b10a5d .config console log report ci-android-49-kasan-gce-root
* Struck through repros no longer work on HEAD.