syzbot


BUG: sleeping function called from invalid context at kernel/sched/completion.c:LINE

Status: auto-closed as invalid on 2019/02/25 18:19
First crash: 2285d, last: 2059d

Sample crash report:
BUG: sleeping function called from invalid context at kernel/sched/completion.c:90
in_atomic(): 1, irqs_disabled(): 0, pid: 3, name: ksoftirqd/0
1 lock held by ksoftirqd/0/3:
 #0:  (rcu_callback){......}, at: [<ffffffff81289ace>] __rcu_reclaim kernel/rcu/rcu.h:108 [inline]
 #0:  (rcu_callback){......}, at: [<ffffffff81289ace>] rcu_do_batch kernel/rcu/tree.c:2789 [inline]
 #0:  (rcu_callback){......}, at: [<ffffffff81289ace>] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline]
 #0:  (rcu_callback){......}, at: [<ffffffff81289ace>] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline]
 #0:  (rcu_callback){......}, at: [<ffffffff81289ace>] rcu_process_callbacks+0x98e/0x12b0 kernel/rcu/tree.c:3037
Preemption disabled at:[  385.903385] [<ffffffff83a0848d>] __do_softirq+0xdd/0x940 kernel/softirq.c:265
CPU: 0 PID: 3 Comm: ksoftirqd/0 Not tainted 4.9.124-g09eb2ba #31
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d99ef868 ffffffff81eb95e9 ffffffff83a0848d 0000000000000000
 0000000000000100 ffff8801d99bb000 ffff8801d99bb000 ffff8801d99ef8a0
 ffffffff81426851 ffff8801d99bb000 ffffffff83c5a3c0 000000000000005a
Call Trace:
 [<ffffffff81eb95e9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb95e9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81426851>] ___might_sleep.cold.123+0x1bc/0x1f5 kernel/sched/core.c:7988
 [<ffffffff811bd9a5>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7945
 [<ffffffff839f5149>] __wait_for_common kernel/sched/completion.c:90 [inline]
 [<ffffffff839f5149>] wait_for_common kernel/sched/completion.c:101 [inline]
 [<ffffffff839f5149>] wait_for_completion+0x89/0x2e0 kernel/sched/completion.c:122
 [<ffffffff8127e057>] __wait_rcu_gp+0x137/0x1b0 kernel/rcu/update.c:369
 [<ffffffff812862ea>] synchronize_rcu.part.62+0xfa/0x110 kernel/rcu/tree_plugin.h:684
 [<ffffffff81286327>] synchronize_rcu+0x27/0x90 kernel/rcu/tree_plugin.h:685
 [<ffffffff836c4baa>] __l2tp_session_unhash+0x38a/0x520 net/l2tp/l2tp_core.c:1796
 [<ffffffff836c4f37>] l2tp_tunnel_closeall+0x1f7/0x350 net/l2tp/l2tp_core.c:1364
 [<ffffffff836c57f2>] l2tp_tunnel_destruct+0x2f2/0x590 net/l2tp/l2tp_core.c:1324
 [<ffffffff830281f5>] __sk_destruct+0x55/0x590 net/core/sock.c:1428
 [<ffffffff812899ee>] __rcu_reclaim kernel/rcu/rcu.h:118 [inline]
 [<ffffffff812899ee>] rcu_do_batch kernel/rcu/tree.c:2789 [inline]
 [<ffffffff812899ee>] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline]
 [<ffffffff812899ee>] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline]
 [<ffffffff812899ee>] rcu_process_callbacks+0x8ae/0x12b0 kernel/rcu/tree.c:3037
 [<ffffffff83a085c0>] __do_softirq+0x210/0x940 kernel/softirq.c:288
 [<ffffffff8114d320>] run_ksoftirqd+0x30/0x60 kernel/softirq.c:680
 [<ffffffff811aa5a9>] smpboot_thread_fn+0x5c9/0x900 kernel/smpboot.c:163
 [<ffffffff8119f3cd>] kthread+0x26d/0x300 kernel/kthread.c:211
 [<ffffffff83a01b9c>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373
BUG: scheduling while atomic: ksoftirqd/0/3/0x00000101
1 lock held by ksoftirqd/0/3:
 #0:  (rcu_callback){......}, at: [<ffffffff81289ace>] __rcu_reclaim kernel/rcu/rcu.h:108 [inline]
 #0:  (rcu_callback){......}, at: [<ffffffff81289ace>] rcu_do_batch kernel/rcu/tree.c:2789 [inline]
 #0:  (rcu_callback){......}, at: [<ffffffff81289ace>] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline]
 #0:  (rcu_callback){......}, at: [<ffffffff81289ace>] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline]
 #0:  (rcu_callback){......}, at: [<ffffffff81289ace>] rcu_process_callbacks+0x98e/0x12b0 kernel/rcu/tree.c:3037
Modules linked in:
Preemption disabled at:[  386.221672] [<ffffffff83a0848d>] __do_softirq+0xdd/0x940 kernel/softirq.c:265

Crashes (280):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/08/29 18:09 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c 4937cb2b .config console log report ci-android-49-kasan-gce-root
2018/08/29 09:47 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c 53ff8784 .config console log report ci-android-49-kasan-gce
2018/08/29 06:30 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c 53ff8784 .config console log report ci-android-49-kasan-gce-root
2018/08/28 22:32 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c b771b17e .config console log report ci-android-49-kasan-gce
2018/08/27 17:19 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c 758cd203 .config console log report ci-android-49-kasan-gce
2018/08/27 06:11 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c 758cd203 .config console log report ci-android-49-kasan-gce-root
2018/08/26 11:26 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c 758cd203 .config console log report ci-android-49-kasan-gce
2018/08/26 06:33 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c 758cd203 .config console log report ci-android-49-kasan-gce-root
2018/08/25 21:37 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c 76e7c3df .config console log report ci-android-49-kasan-gce
2018/08/24 07:28 https://android.googlesource.com/kernel/common android-4.9 7fa8c15e72a4 95b5c82b .config console log report ci-android-49-kasan-gce
2018/08/24 04:53 https://android.googlesource.com/kernel/common android-4.9 7fa8c15e72a4 95b5c82b .config console log report ci-android-49-kasan-gce
2018/08/23 21:39 https://android.googlesource.com/kernel/common android-4.9 7fa8c15e72a4 95b5c82b .config console log report ci-android-49-kasan-gce-root
2018/08/22 09:13 https://android.googlesource.com/kernel/common android-4.9 8dd3fc2ed765 95b5c82b .config console log report ci-android-49-kasan-gce-root
2018/08/20 23:15 https://android.googlesource.com/kernel/common android-4.9 54068d61e7d8 95b5c82b .config console log report ci-android-49-kasan-gce-root
2018/08/20 19:35 https://android.googlesource.com/kernel/common android-4.9 54068d61e7d8 95b5c82b .config console log report ci-android-49-kasan-gce
2018/08/19 13:05 https://android.googlesource.com/kernel/common android-4.9 54068d61e7d8 2dc4378f .config console log report ci-android-49-kasan-gce-root
2018/08/19 08:18 https://android.googlesource.com/kernel/common android-4.9 54068d61e7d8 2dc4378f .config console log report ci-android-49-kasan-gce
2018/08/18 17:59 https://android.googlesource.com/kernel/common android-4.9 54068d61e7d8 db1858f6 .config console log report ci-android-49-kasan-gce
2018/08/18 15:18 https://android.googlesource.com/kernel/common android-4.9 54068d61e7d8 db1858f6 .config console log report ci-android-49-kasan-gce-root
2018/08/17 23:28 https://android.googlesource.com/kernel/common android-4.9 681e57bb080a 738da825 .config console log report ci-android-49-kasan-gce-root
2018/08/15 05:35 https://android.googlesource.com/kernel/common android-4.9 9dc978d43ec7 0e6dcb88 .config console log report ci-android-49-kasan-gce
2018/08/12 22:59 https://android.googlesource.com/kernel/common android-4.9 9dc978d43ec7 7a88b141 .config console log report ci-android-49-kasan-gce
2018/08/12 01:35 https://android.googlesource.com/kernel/common android-4.9 9dc978d43ec7 7a88b141 .config console log report ci-android-49-kasan-gce-root
2018/08/11 22:00 https://android.googlesource.com/kernel/common android-4.9 9dc978d43ec7 7a88b141 .config console log report ci-android-49-kasan-gce
2018/08/11 15:41 https://android.googlesource.com/kernel/common android-4.9 9dc978d43ec7 7a88b141 .config console log report ci-android-49-kasan-gce-root
2018/08/11 02:07 https://android.googlesource.com/kernel/common android-4.9 9dc978d43ec7 7a88b141 .config console log report ci-android-49-kasan-gce
2018/08/10 21:03 https://android.googlesource.com/kernel/common android-4.9 9dc978d43ec7 1fb62d58 .config console log report ci-android-49-kasan-gce
2018/08/10 14:05 https://android.googlesource.com/kernel/common android-4.9 92e87041ed2d 1fb62d58 .config console log report ci-android-49-kasan-gce-root
2018/08/09 22:35 https://android.googlesource.com/kernel/common android-4.9 92e87041ed2d 1fb62d58 .config console log report ci-android-49-kasan-gce
2018/08/08 11:50 https://android.googlesource.com/kernel/common android-4.9 47b77b8d01c4 ddeb9f8d .config console log report ci-android-49-kasan-gce-root
2018/08/06 19:09 https://android.googlesource.com/kernel/common android-4.9 47b77b8d01c4 1beb8136 .config console log report ci-android-49-kasan-gce-root
2018/08/04 19:47 https://android.googlesource.com/kernel/common android-4.9 8b21e85d919c 3476a2df .config console log report ci-android-49-kasan-gce
2018/08/04 17:36 https://android.googlesource.com/kernel/common android-4.9 8b21e85d919c 3476a2df .config console log report ci-android-49-kasan-gce-root
2018/08/04 14:25 https://android.googlesource.com/kernel/common android-4.9 8b21e85d919c 3476a2df .config console log report ci-android-49-kasan-gce-root
2018/08/04 03:48 https://android.googlesource.com/kernel/common android-4.9 8b21e85d919c df7f6947 .config console log report ci-android-49-kasan-gce
2018/08/03 15:59 https://android.googlesource.com/kernel/common android-4.9 8b21e85d919c cc4f6d0a .config console log report ci-android-49-kasan-gce
2018/08/03 12:19 https://android.googlesource.com/kernel/common android-4.9 8b21e85d919c cc4f6d0a .config console log report ci-android-49-kasan-gce-root
2018/08/03 10:17 https://android.googlesource.com/kernel/common android-4.9 8b21e85d919c cc4f6d0a .config console log report ci-android-49-kasan-gce
2018/08/03 02:24 https://android.googlesource.com/kernel/common android-4.9 0137ea2134c0 5b7e23bb .config console log report ci-android-49-kasan-gce
2018/08/03 00:55 https://android.googlesource.com/kernel/common android-4.9 0137ea2134c0 5b7e23bb .config console log report ci-android-49-kasan-gce-root
2018/08/02 23:43 https://android.googlesource.com/kernel/common android-4.9 0137ea2134c0 5b7e23bb .config console log report ci-android-49-kasan-gce
2018/08/02 21:47 https://android.googlesource.com/kernel/common android-4.9 0137ea2134c0 5b7e23bb .config console log report ci-android-49-kasan-gce
2018/08/02 04:41 https://android.googlesource.com/kernel/common android-4.9 0137ea2134c0 0a7cf4ec .config console log report ci-android-49-kasan-gce
2018/08/02 02:18 https://android.googlesource.com/kernel/common android-4.9 0137ea2134c0 0a7cf4ec .config console log report ci-android-49-kasan-gce-root
2018/08/01 18:58 https://android.googlesource.com/kernel/common android-4.9 0137ea2134c0 0a7cf4ec .config console log report ci-android-49-kasan-gce
2018/08/01 12:41 https://android.googlesource.com/kernel/common android-4.9 52be322125e5 1477993e .config console log report ci-android-49-kasan-gce
2018/08/01 08:08 https://android.googlesource.com/kernel/common android-4.9 52be322125e5 1477993e .config console log report ci-android-49-kasan-gce
2018/07/31 18:10 https://android.googlesource.com/kernel/common android-4.9 90e7a9002952 1a381291 .config console log report ci-android-49-kasan-gce-root
2018/07/31 15:36 https://android.googlesource.com/kernel/common android-4.9 90e7a9002952 1a381291 .config console log report ci-android-49-kasan-gce
2018/07/31 02:49 https://android.googlesource.com/kernel/common android-4.9 8956c50bdcd3 1a381291 .config console log report ci-android-49-kasan-gce-root
2018/07/29 20:43 https://android.googlesource.com/kernel/common android-4.9 990559158c7b 1a381291 .config console log report ci-android-49-kasan-gce-root
2018/07/23 22:09 https://android.googlesource.com/kernel/common android-4.9 47bbcd6bf8f9 912c93d7 .config console log report ci-android-49-kasan-gce
2018/08/27 05:00 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c 758cd203 .config console log report ci-android-49-kasan-gce-386
2018/08/25 05:44 https://android.googlesource.com/kernel/common android-4.9 6a1b5923548a 9b0f5c75 .config console log report ci-android-49-kasan-gce-386
2018/08/23 09:13 https://android.googlesource.com/kernel/common android-4.9 8dd3fc2ed765 95b5c82b .config console log report ci-android-49-kasan-gce-386
2018/08/18 20:32 https://android.googlesource.com/kernel/common android-4.9 54068d61e7d8 de20bcbb .config console log report ci-android-49-kasan-gce-386
2018/08/09 09:58 https://android.googlesource.com/kernel/common android-4.9 856452b4f22e 2eeda842 .config console log report ci-android-49-kasan-gce-386
* Struck through repros no longer work on HEAD.