INFO: task syz-executor.4:18842 blocked for more than 143 seconds.
      Not tainted 5.3.0-rc3+ #122
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.4  D28592 18842  26363 0x00004006
Call Trace:
 context_switch kernel/sched/core.c:3254 [inline]
 __schedule+0x755/0x1580 kernel/sched/core.c:3880
 schedule+0xa8/0x270 kernel/sched/core.c:3944
 schedule_timeout+0x717/0xc50 kernel/time/timer.c:1783
 do_wait_for_common kernel/sched/completion.c:83 [inline]
 __wait_for_common kernel/sched/completion.c:104 [inline]
 wait_for_common kernel/sched/completion.c:115 [inline]
 wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136
 __flush_work+0x508/0xa50 kernel/workqueue.c:3040
 __cancel_work_timer+0x3d9/0x540 kernel/workqueue.c:3127
 cancel_delayed_work_sync+0x1b/0x20 kernel/workqueue.c:3259
 tls_sw_cancel_work_tx+0x68/0x80 net/tls/tls_sw.c:2063
 tls_sk_proto_close+0x47b/0x910 net/tls/tls_main.c:299
 inet_release+0xed/0x200 net/ipv4/af_inet.c:427
 inet6_release+0x53/0x80 net/ipv6/af_inet6.c:470
 __sock_release+0xce/0x280 net/socket.c:590
 sock_close+0x1e/0x30 net/socket.c:1268
 __fput+0x2ff/0x890 fs/file_table.c:280
 ____fput+0x16/0x20 fs/file_table.c:313
 task_work_run+0x145/0x1c0 kernel/task_work.c:113
 get_signal+0x2078/0x2500 kernel/signal.c:2523
 do_signal+0x87/0x1700 arch/x86/kernel/signal.c:815
 exit_to_usermode_loop+0x286/0x380 arch/x86/entry/common.c:159
 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:274 [inline]
 do_syscall_64+0x5a9/0x6a0 arch/x86/entry/common.c:299
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
Code: 24 60 48 8b 42 08 48 8b 4a 10 48 8b 5a 18 48 8b 72 20 48 8b 7a 28 48 8b 3f 4c 8b 42 30 48 8b 52 38 48 85 d2 76 62 48 89 44 24 <58> 4c 89 44 24 28 48 89 0c 24 48 89 5c 24 08 48 c7 44 24 10 00 00
RSP: 002b:00007fc9860dec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: fffffffffffffe00 RBX: 0000000000000003 RCX: 0000000000459829
RDX: 0000000000000655 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc9860df6d4
R13: 00000000004c98c4 R14: 00000000004e0e68 R15: 00000000ffffffff
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 1056 Comm: khungtaskd Not tainted 5.3.0-rc3+ #122
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x23b/0x28b lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
 watchdog+0x9d0/0xef0 kernel/hung_task.c:289
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 5.3.0-rc3+ #122
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:batadv_nc_purge_paths+0xee/0x370 net/batman-adv/network-coding.c:442
Code: 48 6b db 38 48 03 58 08 48 89 df 48 89 5d b8 e8 78 82 1c 00 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 0f 85 e0 01 00 00 4d 8b 24 24 <eb> 30 e8 5b b9 50 fa e8 96 c9 7f fe 31 ff 41 89 c7 89 c6 e8 ca ba
RSP: 0018:ffff8880a989fc60 EFLAGS: 00000246
RAX: 1ffff11014131058 RBX: ffff8880a93ea600 RCX: ffffffff8159c75a
RDX: 1ffff1101527d4c2 RSI: 0000000000000004 RDI: ffff8880a989fbc8
RBP: ffff8880a989fcd0 R08: 0000000000000004 R09: ffffed1015313f7a
R10: ffffed1015313f79 R11: 0000000000000003 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8721daf0 R15: 0000000000000050
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c42694f240 CR3: 00000000a8082000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 batadv_nc_worker+0x29c/0x760 net/batman-adv/network-coding.c:719
 process_one_work+0x9af/0x1740 kernel/workqueue.c:2269
 worker_thread+0x98/0xe40 kernel/workqueue.c:2415
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352