INFO: task syz-executor.0:9401 blocked for more than 143 seconds. Not tainted 6.5.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:14320 pid:9401 ppid:8420 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x429/0x14b0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x53d/0x9f0 kernel/locking/mutex.c:747 blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 blkdev_ioctl+0x9a/0x390 block/ioctl.c:610 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe77f87cae9 RSP: 002b:00007fe7805eb0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe77f99bf80 RCX: 00007fe77f87cae9 RDX: 0000000020000380 RSI: 00000000c0481273 RDI: 0000000000000004 RBP: 00007fe77f8c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fe77f99bf80 R15: 00007fff80725478 INFO: task syz-executor.0:9405 blocked for more than 143 seconds. Not tainted 6.5.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:15104 pid:9405 ppid:8420 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x429/0x14b0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x53d/0x9f0 kernel/locking/mutex.c:747 blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 blkdev_common_ioctl+0x51a/0xe40 block/ioctl.c:550 blkdev_ioctl+0x136/0x390 block/ioctl.c:615 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe77f87cae9 RSP: 002b:00007fe7805ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe77f99c050 RCX: 00007fe77f87cae9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004 RBP: 00007fe77f8c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fe77f99c050 R15: 00007fff80725478 INFO: task syz-executor.5:9418 blocked for more than 144 seconds. Not tainted 6.5.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:14560 pid:9418 ppid:8430 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x429/0x14b0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x53d/0x9f0 kernel/locking/mutex.c:747 blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 blkdev_ioctl+0x9a/0x390 block/ioctl.c:610 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5de807cae9 RSP: 002b:00007f5de8dab0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f5de819bf80 RCX: 00007f5de807cae9 RDX: 0000000020000380 RSI: 00000000c0481273 RDI: 0000000000000004 RBP: 00007f5de80c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f5de819bf80 R15: 00007ffd24fd2b38 INFO: task syz-executor.5:9422 blocked for more than 144 seconds. Not tainted 6.5.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:15104 pid:9422 ppid:8430 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x429/0x14b0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x53d/0x9f0 kernel/locking/mutex.c:747 blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 blkdev_common_ioctl+0x51a/0xe40 block/ioctl.c:550 blkdev_ioctl+0x136/0x390 block/ioctl.c:615 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5de807cae9 RSP: 002b:00007f5de8d8a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f5de819c050 RCX: 00007f5de807cae9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004 RBP: 00007f5de80c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f5de819c050 R15: 00007ffd24fd2b38 INFO: task syz-executor.1:9608 blocked for more than 144 seconds. Not tainted 6.5.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:14560 pid:9608 ppid:8976 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x429/0x14b0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x53d/0x9f0 kernel/locking/mutex.c:747 blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 blkdev_ioctl+0x9a/0x390 block/ioctl.c:610 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f50f7e7cae9 RSP: 002b:00007f50f8c710c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f50f7f9bf80 RCX: 00007f50f7e7cae9 RDX: 0000000020000380 RSI: 00000000c0481273 RDI: 0000000000000004 RBP: 00007f50f7ec847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f50f7f9bf80 R15: 00007ffdb13fd0e8 INFO: task syz-executor.1:9609 blocked for more than 145 seconds. Not tainted 6.5.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:14512 pid:9609 ppid:8976 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x429/0x14b0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x53d/0x9f0 kernel/locking/mutex.c:747 blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 blkdev_common_ioctl+0x51a/0xe40 block/ioctl.c:550 blkdev_ioctl+0x136/0x390 block/ioctl.c:615 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f50f7e7cae9 RSP: 002b:00007f50f8c500c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f50f7f9c050 RCX: 00007f50f7e7cae9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004 RBP: 00007f50f7ec847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f50f7f9c050 R15: 00007ffdb13fd0e8 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff853ae450 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp+0x26/0x3d0 kernel/rcu/tasks.h:522 1 lock held by rcu_tasks_trace/14: #0: ffffffff853ae190 (rcu_tasks_trace.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp+0x26/0x3d0 kernel/rcu/tasks.h:522 1 lock held by khungtaskd/28: #0: ffffffff853aeb00 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x12/0x120 kernel/locking/lockdep.c:6615 2 locks held by getty/3015: #0: ffff88810b660898 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x60 drivers/tty/tty_ldisc.c:243 #1: ffffc900076eb2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x83d/0xa60 drivers/tty/n_tty.c:2187 3 locks held by kworker/0:4/4267: #0: ffff888143e97138 ((wq_completion)ipv6_addrconf){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff888143e97138 ((wq_completion)ipv6_addrconf){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc90003f0be40 ((work_completion)(&(&ifa->dad_work)->work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90003f0be40 ((work_completion)(&(&ifa->dad_work)->work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffffffff855ed3c8 (rtnl_mutex){....}-{3:3}, at: addrconf_dad_work+0x5a/0x890 net/ipv6/addrconf.c:4093 2 locks held by kworker/0:6/4345: #0: ffff88810006b338 ((wq_completion)rcu_gp){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810006b338 ((wq_completion)rcu_gp){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc900042abe40 ((work_completion)(&rew->rew_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc900042abe40 ((work_completion)(&rew->rew_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 3 locks held by syz-executor.3/9128: 1 lock held by syz-executor.0/9401: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.0/9405: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.5/9418: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.5/9422: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.1/9608: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.1/9609: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.2/9925: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.2/9926: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.4/10248: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.4/10249: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.3/10862: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.3/10868: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.0/11411: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.0/11416: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.5/11447: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.5/11450: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.1/11553: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.1/11556: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.2/11835: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.2/11836: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.4/12158: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.4/12159: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.3/12483: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.3/12484: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.0/13425: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.0/13430: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.5/13538: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.5/13542: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.1/13594: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.1/13598: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.2/13746: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 1 lock held by syz-executor.2/13747: #0: ffff888141ac1020 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_ioctl+0x66/0x200 kernel/trace/blktrace.c:736 2 locks held by syz-executor.4/13749: #0: ffffffff855ed3c8 (rtnl_mutex){....}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff855ed3c8 (rtnl_mutex){....}-{3:3}, at: rtnetlink_rcv_msg+0x21f/0x670 net/core/rtnetlink.c:6421 #1: ffffffff853af6f8 (rcu_state.exp_mutex){....}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline] #1: ffffffff853af6f8 (rcu_state.exp_mutex){....}-{3:3}, at: synchronize_rcu_expedited+0x159/0x450 kernel/rcu/tree_exp.h:992 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8e/0xf0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x1ae/0x210 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x1b1/0x1e0 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+0x908/0x940 kernel/hung_task.c:379 kthread+0x10f/0x150 kernel/kthread.c:388 ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 9128 Comm: syz-executor.3 Not tainted 6.5.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:__sanitizer_cov_trace_pc+0x3b/0x70 kernel/kcov.c:207 Code: 81 e1 00 01 00 00 65 48 8b 14 25 00 f2 02 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 94 15 00 00 85 c0 74 2b 8b 82 70 15 00 00 <83> f8 02 75 20 48 8b 8a 78 15 00 00 8b 92 74 15 00 00 48 8b 01 48 RSP: 0018:ffffc90002f9fca8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc90099a00000 RCX: 0000000000000000 RDX: ffff888102371c40 RSI: ffffffff815bb68a RDI: 0000000000000006 RBP: ffff88808bf41660 R08: 0000000000000006 R09: ffffc9009997b000 R10: ffffc90099a00000 R11: 0000000000000002 R12: 0000000000000000 R13: 800000005fdf5163 R14: ffffc9009997b000 R15: ffff88808c00ebd8 FS: 00007f402180a6c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f979f8c35c0 CR3: 0000000012d23000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: native_ptep_get_and_clear arch/x86/include/asm/pgtable_64.h:94 [inline] ptep_get_and_clear arch/x86/include/asm/pgtable.h:1070 [inline] vunmap_pte_range mm/vmalloc.c:328 [inline] vunmap_pmd_range mm/vmalloc.c:353 [inline] vunmap_pud_range mm/vmalloc.c:378 [inline] vunmap_p4d_range mm/vmalloc.c:398 [inline] __vunmap_range_noflush+0x3ea/0x4e0 mm/vmalloc.c:429 vunmap_range_noflush mm/vmalloc.c:439 [inline] free_unmap_vmap_area mm/vmalloc.c:1850 [inline] remove_vm_area+0xd9/0x120 mm/vmalloc.c:2705 vunmap+0x44/0x70 mm/vmalloc.c:2869 relay_destroy_buf+0x28/0x140 kernel/relay.c:199 relay_remove_buf kernel/relay.c:221 [inline] kref_put include/linux/kref.h:65 [inline] relay_close_buf+0x93/0xc0 kernel/relay.c:430 relay_close kernel/relay.c:766 [inline] relay_close+0x1b0/0x280 kernel/relay.c:752 blk_trace_free+0x18/0x80 kernel/trace/blktrace.c:316 blk_trace_cleanup kernel/trace/blktrace.c:384 [inline] __blk_trace_remove kernel/trace/blktrace.c:397 [inline] blk_trace_ioctl+0x19e/0x200 kernel/trace/blktrace.c:756 blkdev_common_ioctl+0x51a/0xe40 block/ioctl.c:550 blkdev_ioctl+0x136/0x390 block/ioctl.c:615 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4020a7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f402180a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4020b9c050 RCX: 00007f4020a7cae9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004 RBP: 00007f4020ac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f4020b9c050 R15: 00007fffc7a54a18