INFO: task syz.3.25:5514 blocked for more than 143 seconds. Not tainted 6.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.25 state:D stack:26336 pid:5514 tgid:5478 ppid:5218 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 percpu_rwsem_wait+0x3c2/0x450 kernel/locking/percpu-rwsem.c:162 __percpu_down_read+0xee/0x130 kernel/locking/percpu-rwsem.c:177 percpu_down_read include/linux/percpu-rwsem.h:65 [inline] __sb_start_write include/linux/fs.h:1675 [inline] sb_start_write include/linux/fs.h:1811 [inline] file_start_write+0x1fd/0x250 include/linux/fs.h:2881 direct_splice_actor+0x49/0x220 fs/splice.c:1163 splice_direct_to_actor+0x58e/0xc90 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x28c/0x3e0 fs/splice.c:1233 do_sendfile+0x56d/0xe20 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1348 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcb47579e79 RSP: 002b:00007fcb48414038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fcb47716058 RCX: 00007fcb47579e79 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000008 RBP: 00007fcb475e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000100800001 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fcb47716058 R15: 00007ffc4b7f4658 INFO: task syz.3.25:5519 blocked for more than 144 seconds. Not tainted 6.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.25 state:D stack:25368 pid:5519 tgid:5478 ppid:5218 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 percpu_rwsem_wait+0x3c2/0x450 kernel/locking/percpu-rwsem.c:162 __percpu_down_read+0xee/0x130 kernel/locking/percpu-rwsem.c:177 percpu_down_read include/linux/percpu-rwsem.h:65 [inline] __sb_start_write include/linux/fs.h:1675 [inline] sb_start_write+0x184/0x1c0 include/linux/fs.h:1811 mnt_want_write+0x3f/0x90 fs/namespace.c:515 open_last_lookups fs/namei.c:3636 [inline] path_openat+0x779/0x3470 fs/namei.c:3883 do_filp_open+0x235/0x490 fs/namei.c:3913 do_sys_openat2+0x13e/0x1d0 fs/open.c:1416 do_sys_open fs/open.c:1431 [inline] __do_sys_open fs/open.c:1439 [inline] __se_sys_open fs/open.c:1435 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1435 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcb47579e79 RSP: 002b:00007fcb483f3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fcb47716130 RCX: 00007fcb47579e79 RDX: 0000000000000000 RSI: 0000000000141042 RDI: 0000000020000080 RBP: 00007fcb475e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcb47716130 R15: 00007ffc4b7f4658 INFO: task syz.3.25:5520 blocked for more than 144 seconds. Not tainted 6.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.25 state:D stack:27392 pid:5520 tgid:5478 ppid:5218 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 percpu_rwsem_wait+0x3c2/0x450 kernel/locking/percpu-rwsem.c:162 __percpu_down_read+0xee/0x130 kernel/locking/percpu-rwsem.c:177 percpu_down_read include/linux/percpu-rwsem.h:65 [inline] __sb_start_write include/linux/fs.h:1675 [inline] sb_start_write+0x184/0x1c0 include/linux/fs.h:1811 mnt_want_write_file+0x61/0x200 fs/namespace.c:559 f2fs_ioc_start_atomic_write+0x153/0xaa0 fs/f2fs/file.c:2132 __f2fs_ioctl+0x1b4d/0xb650 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcb47579e79 RSP: 002b:00007fcb483d2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fcb47716208 RCX: 00007fcb47579e79 RDX: 0000000000000000 RSI: 000000000000f501 RDI: 0000000000000004 RBP: 00007fcb475e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fcb47716208 R15: 00007ffc4b7f4658 INFO: task syz.3.25:5526 blocked for more than 145 seconds. Not tainted 6.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.25 state:D stack:27392 pid:5526 tgid:5478 ppid:5218 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 percpu_rwsem_wait+0x3c2/0x450 kernel/locking/percpu-rwsem.c:162 __percpu_down_read+0xee/0x130 kernel/locking/percpu-rwsem.c:177 percpu_down_read include/linux/percpu-rwsem.h:65 [inline] __sb_start_write include/linux/fs.h:1675 [inline] sb_start_write+0x184/0x1c0 include/linux/fs.h:1811 mnt_want_write+0x3f/0x90 fs/namespace.c:515 open_last_lookups fs/namei.c:3636 [inline] path_openat+0x779/0x3470 fs/namei.c:3883 do_filp_open+0x235/0x490 fs/namei.c:3913 do_sys_openat2+0x13e/0x1d0 fs/open.c:1416 do_sys_open fs/open.c:1431 [inline] __do_sys_open fs/open.c:1439 [inline] __se_sys_open fs/open.c:1435 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1435 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcb47579e79 RSP: 002b:00007fcb483b1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fcb477162e0 RCX: 00007fcb47579e79 RDX: 0000000000000000 RSI: 0000000000141042 RDI: 0000000020000100 RBP: 00007fcb475e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fcb477162e0 R15: 00007ffc4b7f4658 INFO: task syz.0.33:5560 blocked for more than 145 seconds. Not tainted 6.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.33 state:D stack:27256 pid:5560 tgid:5553 ppid:5220 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 percpu_rwsem_wait+0x3c2/0x450 kernel/locking/percpu-rwsem.c:162 __percpu_down_read+0xee/0x130 kernel/locking/percpu-rwsem.c:177 percpu_down_read include/linux/percpu-rwsem.h:65 [inline] __sb_start_write include/linux/fs.h:1675 [inline] sb_start_write include/linux/fs.h:1811 [inline] file_start_write+0x1fd/0x250 include/linux/fs.h:2881 direct_splice_actor+0x49/0x220 fs/splice.c:1163 splice_direct_to_actor+0x58e/0xc90 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x28c/0x3e0 fs/splice.c:1233 do_sendfile+0x56d/0xe20 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1348 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9309779e79 RSP: 002b:00007f930a525038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f9309916058 RCX: 00007f9309779e79 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000008 RBP: 00007f93097e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000100800001 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f9309916058 R15: 00007ffcc3da3a28 INFO: task syz.0.33:5561 blocked for more than 146 seconds. Not tainted 6.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.33 state:D stack:26008 pid:5561 tgid:5553 ppid:5220 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 percpu_rwsem_wait+0x3c2/0x450 kernel/locking/percpu-rwsem.c:162 __percpu_down_read+0xee/0x130 kernel/locking/percpu-rwsem.c:177 percpu_down_read include/linux/percpu-rwsem.h:65 [inline] __sb_start_write include/linux/fs.h:1675 [inline] sb_start_write+0x184/0x1c0 include/linux/fs.h:1811 mnt_want_write+0x3f/0x90 fs/namespace.c:515 open_last_lookups fs/namei.c:3636 [inline] path_openat+0x779/0x3470 fs/namei.c:3883 do_filp_open+0x235/0x490 fs/namei.c:3913 do_sys_openat2+0x13e/0x1d0 fs/open.c:1416 do_sys_open fs/open.c:1431 [inline] __do_sys_open fs/open.c:1439 [inline] __se_sys_open fs/open.c:1435 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1435 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9309779e79 RSP: 002b:00007f930a504038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f9309916130 RCX: 00007f9309779e79 RDX: 0000000000000000 RSI: 0000000000141042 RDI: 0000000020000080 RBP: 00007f93097e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9309916130 R15: 00007ffcc3da3a28 INFO: task syz.0.33:5562 blocked for more than 146 seconds. Not tainted 6.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.33 state:D stack:25936 pid:5562 tgid:5553 ppid:5220 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 percpu_rwsem_wait+0x3c2/0x450 kernel/locking/percpu-rwsem.c:162 __percpu_down_read+0xee/0x130 kernel/locking/percpu-rwsem.c:177 percpu_down_read include/linux/percpu-rwsem.h:65 [inline] __sb_start_write include/linux/fs.h:1675 [inline] sb_start_write+0x184/0x1c0 include/linux/fs.h:1811 mnt_want_write_file+0x61/0x200 fs/namespace.c:559 f2fs_ioc_start_atomic_write+0x153/0xaa0 fs/f2fs/file.c:2132 __f2fs_ioctl+0x1b4d/0xb650 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9309779e79 RSP: 002b:00007f930a4e3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9309916208 RCX: 00007f9309779e79 RDX: 0000000000000000 RSI: 000000000000f501 RDI: 0000000000000004 RBP: 00007f93097e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f9309916208 R15: 00007ffcc3da3a28 INFO: task syz.0.33:5563 blocked for more than 146 seconds. Not tainted 6.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.33 state:D stack:27392 pid:5563 tgid:5553 ppid:5220 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 percpu_rwsem_wait+0x3c2/0x450 kernel/locking/percpu-rwsem.c:162 __percpu_down_read+0xee/0x130 kernel/locking/percpu-rwsem.c:177 percpu_down_read include/linux/percpu-rwsem.h:65 [inline] __sb_start_write include/linux/fs.h:1675 [inline] sb_start_write+0x184/0x1c0 include/linux/fs.h:1811 mnt_want_write+0x3f/0x90 fs/namespace.c:515 open_last_lookups fs/namei.c:3636 [inline] path_openat+0x779/0x3470 fs/namei.c:3883 do_filp_open+0x235/0x490 fs/namei.c:3913 do_sys_openat2+0x13e/0x1d0 fs/open.c:1416 do_sys_open fs/open.c:1431 [inline] __do_sys_open fs/open.c:1439 [inline] __se_sys_open fs/open.c:1435 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1435 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9309779e79 RSP: 002b:00007f930a4c2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f93099162e0 RCX: 00007f9309779e79 RDX: 0000000000000000 RSI: 0000000000141042 RDI: 0000000020000100 RBP: 00007f93097e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f93099162e0 R15: 00007ffcc3da3a28 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626 2 locks held by kworker/u8:3/52: #0: ffff8880b923e998 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:560 #1: ffffc90000bc7d00 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90000bc7d00 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 2 locks held by getty/4972: #0: ffff88802f8590a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000312b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211 1 lock held by syz.3.25/5514: #0: ffff88801f10a420 (sb_writers#18){++++}-{0:0}, at: direct_splice_actor+0x49/0x220 fs/splice.c:1163 1 lock held by syz.3.25/5519: #0: ffff88801f10a420 (sb_writers#18){++++}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515 1 lock held by syz.3.25/5520: #0: ffff88801f10a420 (sb_writers#18){++++}-{0:0}, at: mnt_want_write_file+0x61/0x200 fs/namespace.c:559 1 lock held by syz.3.25/5526: #0: ffff88801f10a420 (sb_writers#18){++++}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515 1 lock held by syz.0.33/5560: #0: ffff88802b110420 (sb_writers#18){++++}-{0:0}, at: direct_splice_actor+0x49/0x220 fs/splice.c:1163 1 lock held by syz.0.33/5561: #0: ffff88802b110420 (sb_writers#18){++++}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515 1 lock held by syz.0.33/5562: #0: ffff88802b110420 (sb_writers#18){++++}-{0:0}, at: mnt_want_write_file+0x61/0x200 fs/namespace.c:559 1 lock held by syz.0.33/5563: #0: ffff88802b110420 (sb_writers#18){++++}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515 1 lock held by syz.1.53/5846: #0: ffff88807a3f8420 (sb_writers#18){++++}-{0:0}, at: direct_splice_actor+0x49/0x220 fs/splice.c:1163 1 lock held by syz.1.53/5847: #0: ffff88807a3f8420 (sb_writers#18){++++}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515 1 lock held by syz.1.53/5853: #0: ffff88807a3f8420 (sb_writers#18){++++}-{0:0}, at: mnt_want_write_file+0x61/0x200 fs/namespace.c:559 1 lock held by syz.4.80/6096: #0: ffff88802c9f6420 (sb_writers#18){++++}-{0:0}, at: direct_splice_actor+0x49/0x220 fs/splice.c:1163 1 lock held by syz.4.80/6101: #0: ffff88802c9f6420 (sb_writers#18){++++}-{0:0}, at: mnt_want_write_file+0x61/0x200 fs/namespace.c:559 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xff4/0x1040 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.11.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: bat_events batadv_nc_worker RIP: 0010:lock_release+0x24/0xa30 kernel/locking/lockdep.c:5767 Code: 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 00 01 00 00 49 89 f5 48 89 7c 24 18 <65> 48 8b 04 25 28 00 00 00 48 89 84 24 e0 00 00 00 49 bf 00 00 00 RSP: 0018:ffffc900001079a0 EFLAGS: 00000286 RAX: ffffffff8b790ea3 RBX: ffff88802d84ccc0 RCX: ffff8880176c3c00 RDX: 0000000000000000 RSI: ffffffff8b790ce5 RDI: ffffffff8e738320 RBP: ffffc90000107ad8 R08: ffffffff8b790e91 R09: 1ffffffff269ef08 R10: dffffc0000000000 R11: fffffbfff269ef09 R12: ffff88802d84ccc0 R13: ffffffff8b790ce5 R14: ffff88801191aa28 R15: ffffffff8b790fe0 FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f88e78e7000 CR3: 000000001f496000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_release include/linux/rcupdate.h:336 [inline] rcu_read_unlock include/linux/rcupdate.h:869 [inline] batadv_nc_process_nc_paths+0x2f0/0x3a0 net/batman-adv/network-coding.c:699 batadv_nc_worker+0x42a/0x610 net/batman-adv/network-coding.c:728 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244