INFO: task klogd:4499 blocked for more than 143 seconds.
      Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:klogd           state:D stack:26000 pid:4499  tgid:4499  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c60 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x280 kernel/sched/core.c:6817
 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201
 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x47f/0x4e0 net/socket.c:2191
 __do_sys_sendto net/socket.c:2203 [inline]
 __se_sys_sendto net/socket.c:2199 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2199
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f0222e379b5
RSP: 002b:00007fff78177b38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0222e379b5
RDX: 0000000000000097 RSI: 000055bc23892aa0 RDI: 0000000000000003
RBP: 000055bc2388b2c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007f0222fc5212 R14: 00007fff78177c38 R15: 0000000000000000
 </TASK>
INFO: task udevd:5298 blocked for more than 143 seconds.
      Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:27024 pid:5298  tgid:5298  ppid:4510   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c60 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x280 kernel/sched/core.c:6817
 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201
 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_write_iter+0x50a/0x5c0 net/socket.c:1160
 call_write_iter include/linux/fs.h:2085 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x6de/0x1110 fs/read_write.c:590
 ksys_write+0x1f8/0x260 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f8599d16bf2
RSP: 002b:00007ffcb2843868 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8599d16bf2
RDX: 0000000000000000 RSI: 00007ffcb28438bf RDI: 000000000000000a
RBP: 00007ffcb28438bf R08: 0000000000000001 R09: b63890708c628cca
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000a
R13: 00007f859a0f4ae0 R14: 0000000000000000 R15: 0000562febd042c0
 </TASK>
INFO: task udevd:5308 blocked for more than 144 seconds.
      Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:27104 pid:5308  tgid:5308  ppid:4510   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c60 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x280 kernel/sched/core.c:6817
 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201
 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_write_iter+0x50a/0x5c0 net/socket.c:1160
 call_write_iter include/linux/fs.h:2085 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x6de/0x1110 fs/read_write.c:590
 ksys_write+0x1f8/0x260 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f8599d16bf2
RSP: 002b:00007ffcb2843868 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8599d16bf2
RDX: 0000000000000000 RSI: 00007ffcb28438bf RDI: 000000000000000a
RBP: 00007ffcb28438bf R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007f859a0f4ae0 R14: 0000000000000000 R15: 0000562febd042c0
 </TASK>
INFO: task udevd:5309 blocked for more than 144 seconds.
      Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:27104 pid:5309  tgid:5309  ppid:4510   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c60 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x280 kernel/sched/core.c:6817
 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201
 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_write_iter+0x50a/0x5c0 net/socket.c:1160
 call_write_iter include/linux/fs.h:2085 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x6de/0x1110 fs/read_write.c:590
 ksys_write+0x1f8/0x260 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f8599d16bf2
RSP: 002b:00007ffcb2843868 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8599d16bf2
RDX: 0000000000000000 RSI: 00007ffcb28438bf RDI: 000000000000000a
RBP: 00007ffcb28438bf R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007f859a0f4ae0 R14: 0000000000000000 R15: 0000562febd042c0
 </TASK>
INFO: task udevd:5364 blocked for more than 144 seconds.
      Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:27392 pid:5364  tgid:5364  ppid:4510   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c60 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x280 kernel/sched/core.c:6817
 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201
 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_write_iter+0x50a/0x5c0 net/socket.c:1160
 call_write_iter include/linux/fs.h:2085 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x6de/0x1110 fs/read_write.c:590
 ksys_write+0x1f8/0x260 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f8599d16bf2
RSP: 002b:00007ffcb2843868 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8599d16bf2
RDX: 0000000000000000 RSI: 00007ffcb28438bf RDI: 000000000000000a
RBP: 00007ffcb28438bf R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007f859a0f4ae0 R14: 0000000000000000 R15: 0000562febd042c0
 </TASK>
INFO: task syz-executor.1:5397 blocked for more than 145 seconds.
      Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:29152 pid:5397  tgid:5396  ppid:5107   flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c60 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x280 kernel/sched/core.c:6817
 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201
 unix_stream_sendmsg+0xf2/0x10b0 net/unix/af_unix.c:2200
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0xab5/0xc90 net/socket.c:2584
 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2638
 __sys_sendmsg+0x117/0x1f0 net/socket.c:2667
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fd7ab87dda9
RSP: 002b:00007fd7ac5650c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd7ab9abf80 RCX: 00007fd7ab87dda9
RDX: 0000000000000000 RSI: 0000000020000d00 RDI: 0000000000000003
RBP: 00007fd7ab8ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd7ab9abf80 R15: 00007ffcbbf07638
 </TASK>
INFO: task udevd:5401 blocked for more than 145 seconds.
      Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:27888 pid:5401  tgid:5401  ppid:4510   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c60 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x280 kernel/sched/core.c:6817
 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201
 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_write_iter+0x50a/0x5c0 net/socket.c:1160
 call_write_iter include/linux/fs.h:2085 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x6de/0x1110 fs/read_write.c:590
 ksys_write+0x1f8/0x260 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f8599d16bf2
RSP: 002b:00007ffcb2843868 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8599d16bf2
RDX: 0000000000000000 RSI: 00007ffcb28438bf RDI: 000000000000000a
RBP: 00007ffcb28438bf R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007f859a0f4ae0 R14: 0000000000000000 R15: 0000562febd042c0
 </TASK>
INFO: task syz-executor.2:5407 blocked for more than 145 seconds.
      Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:29152 pid:5407  tgid:5405  ppid:5098   flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c60 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x280 kernel/sched/core.c:6817
 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201
 unix_stream_sendmsg+0xf2/0x10b0 net/unix/af_unix.c:2200
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0xab5/0xc90 net/socket.c:2584
 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2638
 __sys_sendmsg+0x117/0x1f0 net/socket.c:2667
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f3a2b87dda9
RSP: 002b:00007f3a2c5a80c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3a2b9abf80 RCX: 00007f3a2b87dda9
RDX: 0000000000000000 RSI: 00000000200026c0 RDI: 0000000000000004
RBP: 00007f3a2b8ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f3a2b9abf80 R15: 00007ffc8eb88cd8
 </TASK>
INFO: task udevd:5412 blocked for more than 146 seconds.
      Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:27488 pid:5412  tgid:5412  ppid:4510   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c60 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x280 kernel/sched/core.c:6817
 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201
 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_write_iter+0x50a/0x5c0 net/socket.c:1160
 call_write_iter include/linux/fs.h:2085 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x6de/0x1110 fs/read_write.c:590
 ksys_write+0x1f8/0x260 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f8599d16bf2
RSP: 002b:00007ffcb2843868 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8599d16bf2
RDX: 0000000000000000 RSI: 00007ffcb28438bf RDI: 000000000000000a
RBP: 00007ffcb28438bf R08: 0000000000000001 R09: b63890708c628cca
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007f859a0f4ae0 R14: 0000000000000000 R15: 0000562febd042c0
 </TASK>
INFO: task udevd:5413 blocked for more than 146 seconds.
      Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:26768 pid:5413  tgid:5413  ppid:4510   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c60 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x280 kernel/sched/core.c:6817
 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201
 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_write_iter+0x50a/0x5c0 net/socket.c:1160
 call_write_iter include/linux/fs.h:2085 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x6de/0x1110 fs/read_write.c:590
 ksys_write+0x1f8/0x260 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f8599d16bf2
RSP: 002b:00007ffcb2843868 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8599d16bf2
RDX: 0000000000000000 RSI: 00007ffcb28438bf RDI: 000000000000000a
RBP: 00007ffcb28438bf R08: 0000000000000001 R09: b63890708c628cca
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007f859a0f4ae0 R14: 0000000000000000 R15: 0000562febd042c0
 </TASK>
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings

Showing all locks held in the system:
3 locks held by kworker/0:1/9:
1 lock held by khungtaskd/29:
 #0: ffffffff8d7ad160 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
 #0: ffffffff8d7ad160 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
 #0: ffffffff8d7ad160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by kworker/u4:5/742:
2 locks held by getty/4817:
 #0: ffff88802eb300a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900015d02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfca/0x1490 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.4/5392:

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xf87/0x1210 kernel/hung_task.c:379
 kthread+0x2c6/0x3b0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 742 Comm: kworker/u4:5 Not tainted 6.8.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline]
RIP: 0010:lock_acquire+0x468/0x520 kernel/locking/lockdep.c:5725
Code: 44 24 14 8b 54 24 10 e8 96 3f fe ff 5e 5f 65 ff 0d 05 fb 98 7e 0f 85 33 fc ff ff e8 22 bf 95 ff e9 29 fc ff ff e8 18 1d 08 00 <84> c0 0f 85 55 fc ff ff 90 0f 0b 90 e9 4c fc ff ff 90 0f 0b 90 e9
RSP: 0018:ffffc900039ffac8 EFLAGS: 00000286
RAX: 0000000000000001 RBX: 1ffff9200073ff5b RCX: ffffffff816ac3a7
RDX: 0000000000000000 RSI: ffffffff8b6e9840 RDI: ffffffff8d224a60
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1f3ab12
R10: ffffffff8f9d5897 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8d7ad160 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00bfce000 CR3: 000000000d57a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
 rcu_read_lock include/linux/rcupdate.h:750 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
 batadv_nc_worker+0x16e/0x10f0 net/batman-adv/network-coding.c:719
 process_one_work+0x889/0x15e0 kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x8b9/0x12a0 kernel/workqueue.c:2787
 kthread+0x2c6/0x3b0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
 </TASK>