INFO: task syz.2.17:6704 blocked for more than 143 seconds. Not tainted 6.16.0-rc1-syzkaller-gf09079bd04a9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.17 state:D stack:29288 pid:6704 tgid:6703 ppid:6589 task_flags:0x400040 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5396 [inline] __schedule+0x116a/0x5de0 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:6878 super_lock+0x2c0/0x3f0 fs/super.c:115 __iterate_supers+0x1e0/0x330 fs/super.c:923 ksys_sync+0x89/0x150 fs/sync.c:102 __do_sys_sync+0xe/0x20 fs/sync.c:113 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f194fb7e719 RSP: 002b:00007f195092f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f194fd35f80 RCX: 00007f194fb7e719 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f194fbf139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f194fd35f80 R15: 00007ffd6467c768 INFO: task syz.3.18:6798 blocked for more than 143 seconds. Not tainted 6.16.0-rc1-syzkaller-gf09079bd04a9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.18 state:D stack:29288 pid:6798 tgid:6796 ppid:6592 task_flags:0x400040 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5396 [inline] __schedule+0x116a/0x5de0 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:6878 super_lock+0x2c0/0x3f0 fs/super.c:115 __iterate_supers+0x1e0/0x330 fs/super.c:923 ksys_sync+0x89/0x150 fs/sync.c:102 __do_sys_sync+0xe/0x20 fs/sync.c:113 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1ece37e719 RSP: 002b:00007f1ecf1cc038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f1ece535f80 RCX: 00007f1ece37e719 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f1ece3f139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f1ece535f80 R15: 00007ffcaf6f30e8 INFO: task syz.0.15:6808 blocked for more than 143 seconds. Not tainted 6.16.0-rc1-syzkaller-gf09079bd04a9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.15 state:D stack:29288 pid:6808 tgid:6807 ppid:6585 task_flags:0x400040 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5396 [inline] __schedule+0x116a/0x5de0 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:6878 super_lock+0x2c0/0x3f0 fs/super.c:115 __iterate_supers+0x1e0/0x330 fs/super.c:923 ksys_sync+0x89/0x150 fs/sync.c:102 __do_sys_sync+0xe/0x20 fs/sync.c:113 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3cbc17e719 RSP: 002b:00007f3cbd023038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f3cbc335f80 RCX: 00007f3cbc17e719 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f3cbc1f139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f3cbc335f80 R15: 00007ffd0a7877a8 INFO: task syz.1.16:6818 blocked for more than 144 seconds. Not tainted 6.16.0-rc1-syzkaller-gf09079bd04a9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.16 state:D stack:29288 pid:6818 tgid:6817 ppid:6590 task_flags:0x400040 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5396 [inline] __schedule+0x116a/0x5de0 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:6878 super_lock+0x2c0/0x3f0 fs/super.c:115 __iterate_supers+0x1e0/0x330 fs/super.c:923 ksys_sync+0x89/0x150 fs/sync.c:102 __do_sys_sync+0xe/0x20 fs/sync.c:113 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff7f2d7e719 RSP: 002b:00007ff7f3b9d038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007ff7f2f35f80 RCX: 00007ff7f2d7e719 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ff7f2df139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ff7f2f35f80 R15: 00007ffe77435bf8 INFO: task syz.4.19:6826 blocked for more than 144 seconds. Not tainted 6.16.0-rc1-syzkaller-gf09079bd04a9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.19 state:D stack:29288 pid:6826 tgid:6825 ppid:6598 task_flags:0x400040 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5396 [inline] __schedule+0x116a/0x5de0 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:6878 super_lock+0x2c0/0x3f0 fs/super.c:115 __iterate_supers+0x1e0/0x330 fs/super.c:923 ksys_sync+0x89/0x150 fs/sync.c:102 __do_sys_sync+0xe/0x20 fs/sync.c:113 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8ae3f7e719 RSP: 002b:00007f8ae4e0a038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f8ae4135f80 RCX: 00007f8ae3f7e719 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f8ae3ff139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f8ae4135f80 R15: 00007ffdbcd23248 Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffffffff8e5c4840 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8e5c4840 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8e5c4840 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0 kernel/locking/lockdep.c:6770 2 locks held by kworker/u8:4/59: 3 locks held by kworker/u8:7/3521: #0: ffff88814c90f948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213 #1: ffffc9000d017d10 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214 #2: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #2: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x120/0x14e0 net/ipv6/addrconf.c:4198 2 locks held by getty/5582: #0: ffff888036fd20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41b/0x14f0 drivers/tty/n_tty.c:2222 1 lock held by syz.2.17/6709: #0: ffff888034ffe0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.3.18/6801: #0: ffff88801b9780e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.0.15/6810: #0: ffff888063a420e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 3 locks held by kworker/u8:8/6816: #0: ffff88801b881148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213 #1: ffffc90003637d10 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214 #2: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:303 1 lock held by syz.1.16/6821: #0: ffff888027fe80e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.4.19/6829: #0: ffff888144e900e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.5.20/7419: #0: ffff88805bdaa0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.7.22/7526: #0: ffff88806152a0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.6.21/7529: #0: ffff8880366f60e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.9.24/7534: #0: ffff8880700fa0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.8.23/7535: #0: ffff88807010c0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.2.25/7559: #0: ffff88802980c0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.0.26/7637: #0: ffff888028ee40e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.3.27/7642: #0: ffff8880342600e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.1.28/7653: #0: ffff88803593c0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.4.29/7656: #0: ffff88802a5340e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.5.30/7685: #0: ffff888029ee00e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.6.31/7794: #0: ffff888055ca40e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.7.32/7808: #0: ffff88814339c0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.8.33/7811: #0: ffff88805b1140e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.9.34/7818: #0: ffff88805ad220e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.2.35/7827: #0: ffff8880291380e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.0.36/7896: #0: ffff8880491a20e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.3.37/7926: #0: ffff888059ab00e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.1.38/7947: #0: ffff8880294420e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.4.39/7948: #0: ffff88807ac100e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.5.40/7951: #0: ffff888052fa60e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.6.41/8034: #0: ffff888043ec20e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.7.42/8038: #0: ffff8880323a60e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.8.43/8088: #0: ffff8880503240e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.9.44/8094: #0: ffff888055af40e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.0.46/8125: #0: ffff8880451460e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.3.47/8151: #0: ffff88804522e0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.1.48/8215: #0: ffff88801f2f00e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.4.50/8218: #0: ffff888043d3c0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.5.49/8221: #0: ffff88807a8380e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.6.51/8252: #0: ffff888052a5e0e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz.7.52/8279: #0: ffff8880427c40e0 (&type->s_umount_key#65/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 1 lock held by syz-executor/8281: #0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x600/0x2000 net/core/rtnetlink.c:4054 3 locks held by syz-executor/8291: #0: ffffffff8f712660 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:161 [inline] #0: ffffffff8f712660 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:253 [inline] #0: ffffffff8f712660 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x113/0x2c0 net/core/rtnetlink.c:574 #1: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x600/0x2000 net/core/rtnetlink.c:4054 #2: ffffffff8e5cfe38 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock+0x284/0x3c0 kernel/rcu/tree_exp.h:304 2 locks held by syz-executor/8292: #0: ffffffff90aa25c0 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:161 [inline] #0: ffffffff90aa25c0 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:253 [inline] #0: ffffffff90aa25c0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x113/0x2c0 net/core/rtnetlink.c:574 #1: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x600/0x2000 net/core/rtnetlink.c:4054 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc1-syzkaller-gf09079bd04a9 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 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:158 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:307 [inline] watchdog+0xf70/0x12c0 kernel/hung_task.c:470 kthread+0x3c5/0x780 kernel/kthread.c:464 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 8291 Comm: syz-executor Not tainted 6.16.0-rc1-syzkaller-gf09079bd04a9 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:416 Code: 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 1c 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d e9 96 4f 27 06 e8 d1 86 c7 fc eb a0 e8 5a 87 c7 RSP: 0018:ffffc9000d256c68 EFLAGS: 00000002 RAX: 0000000000000035 RBX: 00000000000003f8 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: ffffffff855b5315 RDI: ffffffff9b0883a0 RBP: ffffffff9b088360 R08: 0000000000000001 R09: 000000000000001f R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000035 R14: ffffffff9b088360 R15: ffffffff855b52b0 FS: 000055555d2a9500(0000) GS:ffff888124754000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa40fe67d60 CR3: 00000000381bc000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_port_out include/linux/serial_core.h:798 [inline] serial8250_console_putchar drivers/tty/serial/8250/8250_port.c:3306 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3378 [inline] serial8250_console_write+0xfbf/0x1890 drivers/tty/serial/8250/8250_port.c:3456 console_emit_next_record kernel/printk/printk.c:3138 [inline] console_flush_all+0x801/0xc60 kernel/printk/printk.c:3226 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline] console_unlock+0xd8/0x210 kernel/printk/printk.c:3325 vprintk_emit+0x418/0x6d0 kernel/printk/printk.c:2450 _printk+0xc7/0x100 kernel/printk/printk.c:2475 br_set_state+0x376/0x880 net/bridge/br_stp.c:57 new_nbp net/bridge/br_if.c:443 [inline] br_add_if+0x5e5/0x1b70 net/bridge/br_if.c:599 do_set_master+0x40c/0x730 net/core/rtnetlink.c:2946 do_setlink.constprop.0+0xbd8/0x4380 net/core/rtnetlink.c:3148 rtnl_changelink net/core/rtnetlink.c:3759 [inline] __rtnl_newlink net/core/rtnetlink.c:3918 [inline] rtnl_newlink+0x1446/0x2000 net/core/rtnetlink.c:4055 rtnetlink_rcv_msg+0x95b/0xe90 net/core/rtnetlink.c:6944 netlink_rcv_skb+0x155/0x420 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x53d/0x7f0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x8d1/0xdd0 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg net/socket.c:727 [inline] __sys_sendto+0x4a3/0x520 net/socket.c:2180 __do_sys_sendto net/socket.c:2187 [inline] __se_sys_sendto net/socket.c:2183 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2183 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff1cef805ac Code: 2a 5a 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5a 02 00 48 8b RSP: 002b:00007ffec9cdb6c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007ff1cfc64620 RCX: 00007ff1cef805ac RDX: 0000000000000028 RSI: 00007ff1cfc64670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffec9cdb714 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007ff1cfc64670 R15: 0000000000000000