INFO: task syz-executor.0:3574 blocked for more than 143 seconds. Not tainted 6.1.81-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:21016 pid:3574 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline] synchronize_rcu_expedited+0x479/0x8a0 kernel/rcu/tree_exp.h:949 namespace_unlock+0x297/0x4d0 fs/namespace.c:1497 do_umount fs/namespace.c:1720 [inline] path_umount+0xe78/0xef0 fs/namespace.c:1802 ksys_umount fs/namespace.c:1825 [inline] __do_sys_umount fs/namespace.c:1830 [inline] __se_sys_umount fs/namespace.c:1828 [inline] __x64_sys_umount+0x122/0x170 fs/namespace.c:1828 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9c1387f0d7 RSP: 002b:00007ffd448a57c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9c1387f0d7 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffd448a5880 RBP: 00007ffd448a5880 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd448a6940 R13: 00007f9c138c93b9 R14: 0000000000119520 R15: 0000000000000002 INFO: task syz-executor.3:3587 blocked for more than 143 seconds. Not tainted 6.1.81-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:20376 pid:3587 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 synchronize_rcu_expedited+0x6dc/0x8a0 kernel/rcu/tree_exp.h:964 bdi_remove_from_list mm/backing-dev.c:932 [inline] bdi_unregister+0x18c/0x5c0 mm/backing-dev.c:940 generic_shutdown_super+0x2ae/0x340 fs/super.c:529 kill_anon_super+0x37/0x60 fs/super.c:1117 btrfs_kill_super+0x3d/0x50 fs/btrfs/super.c:2449 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f8a2947f0d7 RSP: 002b:00007fffb18aeb98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f8a2947f0d7 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fffb18aec50 RBP: 00007fffb18aec50 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffb18afd10 R13: 00007f8a294c93b9 R14: 000000000011919a R15: 0000000000000006 INFO: task kworker/u4:8:5012 blocked for more than 144 seconds. Not tainted 6.1.81-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:8 state:D stack:20288 pid:5012 ppid:2 flags:0x00004000 Workqueue: events_unbound fsnotify_mark_destroy_workfn Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x350/0x610 kernel/sched/completion.c:138 __synchronize_srcu+0x2b7/0x360 kernel/rcu/srcutree.c:1243 fsnotify_mark_destroy_workfn+0x142/0x340 fs/notify/mark.c:898 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:307 INFO: task kworker/u4:9:5013 blocked for more than 144 seconds. Not tainted 6.1.81-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:9 state:D stack:20544 pid:5013 ppid:2 flags:0x00004000 Workqueue: events_unbound fsnotify_connector_destroy_workfn Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x350/0x610 kernel/sched/completion.c:138 __synchronize_srcu+0x2b7/0x360 kernel/rcu/srcutree.c:1243 fsnotify_connector_destroy_workfn+0x40/0xa0 fs/notify/mark.c:208 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:307 INFO: task syz-executor.1:24955 blocked for more than 144 seconds. Not tainted 6.1.81-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:24520 pid:24955 ppid:3577 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x350/0x610 kernel/sched/completion.c:138 xfs_buf_iowait+0xd2/0x510 fs/xfs/xfs_buf.c:1611 __xfs_buf_submit+0x428/0x830 fs/xfs/xfs_buf.c:1691 xfs_buf_submit fs/xfs/xfs_buf.c:60 [inline] xfs_buf_read_uncached+0x1f7/0x2d0 fs/xfs/xfs_buf.c:925 xfs_readsb+0x1a9/0x640 fs/xfs/xfs_mount.c:179 xfs_fs_fill_super+0x601/0x13a0 fs/xfs/xfs_super.c:1530 get_tree_bdev+0x3fe/0x620 fs/super.c:1355 vfs_get_tree+0x88/0x270 fs/super.c:1562 do_new_mount+0x2ba/0xb40 fs/namespace.c:3051 do_mount fs/namespace.c:3394 [inline] __do_sys_mount fs/namespace.c:3602 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3579 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f276467f4aa RSP: 002b:00007f2765365ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f2765365f80 RCX: 00007f276467f4aa RDX: 0000000020000080 RSI: 0000000020009640 RDI: 00007f2765365f40 RBP: 0000000020000080 R08: 00007f2765365f80 R09: 0000000002200801 R10: 0000000002200801 R11: 0000000000000202 R12: 0000000020009640 R13: 00007f2765365f40 R14: 0000000000009663 R15: 0000000020000040 INFO: task syz-executor.4:24975 blocked for more than 144 seconds. Not tainted 6.1.81-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:24920 pid:24975 ppid:3580 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_timeout+0xac/0x300 kernel/time/timer.c:1911 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x350/0x610 kernel/sched/completion.c:138 xfs_buf_iowait+0xd2/0x510 fs/xfs/xfs_buf.c:1611 __xfs_buf_submit+0x428/0x830 fs/xfs/xfs_buf.c:1691 xfs_buf_submit fs/xfs/xfs_buf.c:60 [inline] _xfs_buf_read fs/xfs/xfs_buf.c:757 [inline] xfs_buf_read_map+0x43a/0xab0 fs/xfs/xfs_buf.c:821 xfs_trans_read_buf_map+0x25c/0xb80 fs/xfs/xfs_trans_buf.c:289 xfs_trans_read_buf fs/xfs/xfs_trans.h:212 [inline] xfs_read_agi+0x2e3/0x6a0 fs/xfs/libxfs/xfs_ialloc.c:2583 xfs_ialloc_read_agi+0x19a/0x620 fs/xfs/libxfs/xfs_ialloc.c:2611 xfs_imap_lookup+0x114/0x710 fs/xfs/libxfs/xfs_ialloc.c:2218 xfs_imap+0x524/0x1100 fs/xfs/libxfs/xfs_ialloc.c:2330 xfs_iget_cache_miss fs/xfs/xfs_icache.c:588 [inline] xfs_iget+0xc39/0x3300 fs/xfs/xfs_icache.c:750 xfs_mountfs+0xf57/0x1f00 fs/xfs/xfs_mount.c:834 xfs_fs_fill_super+0x1145/0x13a0 fs/xfs/xfs_super.c:1681 get_tree_bdev+0x3fe/0x620 fs/super.c:1355 vfs_get_tree+0x88/0x270 fs/super.c:1562 do_new_mount+0x2ba/0xb40 fs/namespace.c:3051 do_mount fs/namespace.c:3394 [inline] __do_sys_mount fs/namespace.c:3602 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3579 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f689727f4aa RSP: 002b:00007f6897fb0ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f6897fb0f80 RCX: 00007f689727f4aa RDX: 0000000020000080 RSI: 0000000020009640 RDI: 00007f6897fb0f40 RBP: 0000000020000080 R08: 00007f6897fb0f80 R09: 0000000002200801 R10: 0000000002200801 R11: 0000000000000202 R12: 0000000020009640 R13: 00007f6897fb0f40 R14: 0000000000009663 R15: 0000000020000040 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d12aa10 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d12b210 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516 2 locks held by kworker/1:1/26: 1 lock held by khungtaskd/28: #0: ffffffff8d12a840 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:319 [inline] #0: ffffffff8d12a840 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:760 [inline] #0: ffffffff8d12a840 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494 1 lock held by khugepaged/35: #0: ffffffff8d1d1b08 (lock#3){+.+.}-{3:3}, at: __lru_add_drain_all+0x66/0x7d0 mm/swap.c:873 2 locks held by kworker/u4:4/102: #0: ffff8880b993aa18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537 #1: ffffc900015b7d20 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 2 locks held by getty/3301: #0: ffff8880289e6098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2188 3 locks held by syz-fuzzer/3664: #0: ffff88807e876460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff888098381810 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline] #1: ffff888098381810 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_rmdir+0x251/0x590 fs/namei.c:4241 #2: ffff888098382c20 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff888098382c20 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_rmdir+0xf9/0x4b0 fs/namei.c:4182 1 lock held by syz-executor.0/3574: #0: ffffffff8d12fe38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline] #0: ffffffff8d12fe38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x479/0x8a0 kernel/rcu/tree_exp.h:949 1 lock held by syz-executor.3/3587: #0: ffffffff8d12fe38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline] #0: ffffffff8d12fe38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3b0/0x8a0 kernel/rcu/tree_exp.h:949 3 locks held by kworker/0:8/3629: #0: ffff888012470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc90005397d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #2: ffffffff8e298d28 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:263 2 locks held by kworker/u4:8/5012: #0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc9000b09fd20 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 2 locks held by kworker/u4:9/5013: #0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc9000b0e7d20 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 3 locks held by kworker/0:12/5364: #0: ffff88814b2d6138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc90013a5fd20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #2: ffffffff8e298d28 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x15/0x30 net/ipv6/addrconf.c:4654 1 lock held by syz-executor.1/24955: #0: ffff88807c6860e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228 1 lock held by syz-executor.4/24975: #0: ffff8880a60860e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228 1 lock held by syz-executor.1/25001: #0: ffffffff8e298d28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8e298d28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118 1 lock held by syz-executor.4/25008: #0: ffffffff8e298d28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8e298d28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118 1 lock held by dhcpcd/25010: #0: ffff888091396130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1745 [inline] #0: ffff888091396130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3198 1 lock held by dhcpcd/25011: #0: ffff88804cb44130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1745 [inline] #0: ffff88804cb44130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3198 1 lock held by dhcpcd/25012: #0: ffff88807b2ee130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1745 [inline] #0: ffff88807b2ee130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3198 1 lock held by dhcpcd/25013: #0: ffff8880912cc130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1745 [inline] #0: ffff8880912cc130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3198 1 lock held by dhcpcd/25014: #0: ffff88807e61a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1745 [inline] #0: ffff88807e61a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3198 1 lock held by dhcpcd/25015: #0: ffff888021318130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1745 [inline] #0: ffff888021318130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3198 1 lock held by syz-executor.1/25017: #0: ffffffff8e298d28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8e298d28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118 1 lock held by syz-executor.4/25021: #0: ffffffff8e298d28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8e298d28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xf88/0xfd0 kernel/hung_task.c:377 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:307 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 19717 Comm: kworker/u4:2 Not tainted 6.1.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Workqueue: bat_events batadv_nc_worker RIP: 0010:batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:409 [inline] RIP: 0010:batadv_nc_worker+0x17a/0x610 net/batman-adv/network-coding.c:719 Code: 05 de ed 04 04 01 48 c7 c7 c0 e7 03 8c be fa 02 00 00 48 c7 c2 00 e8 03 8c e8 a2 2f 10 f7 48 89 e8 48 c1 e8 03 42 80 3c 38 00 <74> 08 48 89 ef e8 fc 79 87 f7 48 8b 6d 00 48 85 ed 74 51 48 81 c5 RSP: 0018:ffffc9000b54fbf8 EFLAGS: 00000246 RAX: 1ffff1100fd10831 RBX: ffff88807c591740 RCX: ffff88801fbbd940 RDX: 0000000000000000 RSI: ffffffff8b3d2a20 RDI: ffffffff8b3d29e0 RBP: ffff88807e884188 R08: ffffffff8a5a7a2d R09: fffffbfff2092a45 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888092af0c80 R13: 0000000000000031 R14: ffff88807c591740 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005563aeff2030 CR3: 000000000ce8e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:307