syzbot

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 GPs behind) idle=38c4/1/0x4000000000000000 softirq=69449/69450 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5700/1:b..l
rcu: 	(detected by 0, t=10505 jiffies, g=103073, q=222 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 16756 Comm: syz-executor.4 Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:86 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x7f/0x290 mm/kasan/generic.c:189
Code: 03 49 be 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 <48> 01 dd 41 80 3b 00 0f 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9
RSP: 0018:ffffc90000a08c00 EFLAGS: 00000002
RAX: 1ffff11005df6f01 RBX: 1ffff1101025e05c RCX: ffffffff8981b8fa
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880812f02e0
RBP: e0000eefefda1fa3 R08: ffff8880812f02e7 R09: 1ffff1101025e05c
R10: dffffc0000000000 R11: ffffed101025e05c R12: 0000000000000004
R13: ffff88802efb7808 R14: dffffc0000000001 R15: ffffed101025e05d
FS:  00007f270870b6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c325000 CR3: 0000000067840000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 atomic64_read include/linux/atomic/atomic-instrumented.h:1610 [inline]
 taprio_set_budgets+0x1ba/0x370 net/sched/sch_taprio.c:670
 advance_sched+0x98d/0xca0 net/sched/sch_taprio.c:977
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x5a5/0xd50 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0xaad/0xfd0 kernel/printk/printk.c:2985
Code: ff ff e8 a6 94 1f 00 90 0f 0b 90 e9 d8 f8 ff ff e8 98 94 1f 00 e8 c3 22 01 0a 4d 85 f6 74 b6 e8 89 94 1f 00 fb 48 8b 44 24 70 <42> 0f b6 04 38 84 c0 48 8b 7c 24 30 0f 85 22 02 00 00 0f b6 1f 31
RSP: 0018:ffffc9000ef1ec20 EFLAGS: 00000246
RAX: 1ffff92001de3dd0 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000adbe000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000ef1edd0 R08: ffffffff81767ae4 R09: 1ffffffff25dfca0
R10: dffffc0000000000 R11: fffffbfff25dfca1 R12: ffffffff8eb03438
R13: ffffffff8eb033e0 R14: 0000000000000200 R15: dffffc0000000000
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3048
 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348
 _printk+0xd5/0x120 kernel/printk/printk.c:2373
 set_capacity_and_notify+0x220/0x2c0 block/genhd.c:86
 loop_set_size+0x44/0xb0 drivers/block/loop.c:235
 loop_configure+0xd00/0x1250 drivers/block/loop.c:1098
 lo_ioctl+0x8f6/0x21a0
 blkdev_ioctl+0x5e5/0x740 block/ioctl.c:642
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:904 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:890
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2707a7da8b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007f270870ae50 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2707a7da8b
RDX: 0000000000000003 RSI: 0000000000004c00 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000005597
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007f270870af80 R14: 00007f270870af40 R15: 00007f26fd800000
 </TASK>
task:syz-executor.1  state:R  running task     stack:19512 pid:5700  tgid:5695  ppid:5497   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x1796/0x4a00 kernel/sched/core.c:6746
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7068
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_is_held_type+0x13b/0x190
Code: 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 42 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90004717360 EFLAGS: 00000206
RAX: 033bef5a79abf700 RBX: 0000000000000001 RCX: 0000000080000000
RDX: ffff88802b070000 RSI: ffffffff8bcaca20 RDI: ffffffff8c1eaaa0
RBP: 0000000000000002 R08: ffffffff8b72b659 R09: 1ffffffff25dfca0
R10: dffffc0000000000 R11: fffffbfff25dfca1 R12: 0000000000000246
R13: ffff88802b070000 R14: 00000000ffffffff R15: ffffffff8e334da0
 xa_entry include/linux/xarray.h:1216 [inline]
 xas_descend+0x120/0x470 lib/xarray.c:206
 xas_load+0xbe/0x150 lib/xarray.c:244
 filemap_get_entry+0x1fe/0x4e0 mm/filemap.c:1816
 __filemap_get_folio+0x65/0xbb0 mm/filemap.c:1861
 __find_get_block_slow fs/buffer.c:203 [inline]
 __find_get_block+0x257/0x10d0 fs/buffer.c:1401
 bdev_getblk+0x38/0x610 fs/buffer.c:1423
 __bread_gfp+0xac/0x430 fs/buffer.c:1474
 sb_bread include/linux/buffer_head.h:321 [inline]
 bfs_find_entry+0x1c3/0x3f0 fs/bfs/dir.c:333
 bfs_lookup+0x14b/0x270 fs/bfs/dir.c:137
 lookup_open fs/namei.c:3475 [inline]
 open_last_lookups fs/namei.c:3566 [inline]
 path_openat+0x1033/0x3240 fs/namei.c:3796
 do_filp_open+0x235/0x490 fs/namei.c:3826
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406
 do_sys_open fs/open.c:1421 [inline]
 __do_sys_openat fs/open.c:1437 [inline]
 __se_sys_openat fs/open.c:1432 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1432
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f53dd87dd29
RSP: 002b:00007f53de6a70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f53dd9abf80 RCX: 00007f53dd87dd29
RDX: 0000000000000000 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f53dd8ca47e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f53dd9abf80 R15: 00007ffea98e2138
 </TASK>
rcu: rcu_preempt kthread starved for 10505 jiffies! g103073 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:24944 pid:16    tgid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x1796/0x4a00 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6838
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
 rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:1663
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 13662 Comm: kworker/u8:16 Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x1899/0x2a00 kernel/smp.c:855
Code: 89 e6 83 e6 01 31 ff e8 15 db 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 c0 d6 0b 00 eb 38 f3 90 42 0f b6 04 23 <84> c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 a4 d6 0b 00 eb e4 44
RSP: 0018:ffffc9001065f6e0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff110172a8861 RCX: ffff88802bf4bc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9001065f8e0 R08: ffffffff818a38fb R09: 1ffffffff25dfca0
R10: dffffc0000000000 R11: fffffbfff25dfca1 R12: dffffc0000000000
R13: ffff8880b9544308 R14: ffff8880b943f780 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f92e13ffc00 CR3: 000000000e134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2086 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2296
 text_poke_flush arch/x86/kernel/alternative.c:2487 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2494
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:205
 static_key_enable+0x1a/0x20 kernel/jump_label.c:218
 toggle_allocation_gate+0xb5/0x250 mm/kfence/core.c:826
 process_one_work kernel/workqueue.c:3267 [inline]
 process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3348
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3429
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
watchdog: BUG: soft lockup - CPU#0 stuck for 225s! [kworker/u8:16:13662]
Modules linked in:
irq event stamp: 8358914
hardirqs last  enabled at (8358913): [<ffffffff8b77adb3>] irqentry_exit+0x63/0x90 kernel/entry/common.c:357
hardirqs last disabled at (8358914): [<ffffffff8b77895e>] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1043
softirqs last  enabled at (8358908): [<ffffffff815a3a72>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last  enabled at (8358908): [<ffffffff815a3a72>] __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
softirqs last disabled at (8358871): [<ffffffff815a3a72>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last disabled at (8358871): [<ffffffff815a3a72>] __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
CPU: 0 PID: 13662 Comm: kworker/u8:16 Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:check_kcov_mode kernel/kcov.c:175 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x31/0x70 kernel/kcov.c:207
Code: 24 65 48 8b 0c 25 80 d3 03 00 65 8b 15 a0 c3 6d 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 14 16 00 00 00 74 2c <8b> 91 f0 15 00 00 83 fa 02 75 21 48 8b 91 f8 15 00 00 48 8b 32 48
RSP: 0018:ffffc9001065f6d8 EFLAGS: 00000246
RAX: ffffffff818a392c RBX: 1ffff110172a8861 RCX: ffff88802bf4bc00
RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9001065f8e0 R08: ffffffff818a38fb R09: 1ffffffff25dfca0
R10: dffffc0000000000 R11: fffffbfff25dfca1 R12: dffffc0000000000
R13: ffff8880b9544308 R14: ffff8880b943f780 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f92e13ffc00 CR3: 000000000e134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 csd_lock_wait kernel/smp.c:311 [inline]
 smp_call_function_many_cond+0x18ac/0x2a00 kernel/smp.c:855
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2086 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2296
 text_poke_flush arch/x86/kernel/alternative.c:2487 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2494
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:205
 static_key_enable+0x1a/0x20 kernel/jump_label.c:218
 toggle_allocation_gate+0xb5/0x250 mm/kfence/core.c:826
 process_one_work kernel/workqueue.c:3267 [inline]
 process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3348
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3429
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 16756 Comm: syz-executor.4 Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__preempt_count_add kernel/rcu/tree.c:696 [inline]
RIP: 0010:rcu_is_watching+0x6/0xb0 kernel/rcu/tree.c:699
Code: 64 03 e9 2b ff ff ff e8 58 3a fb 09 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 <41> 56 53 65 ff 05 d8 70 87 7e e8 8b 58 fb 09 89 c3 83 f8 08 73 7a
RSP: 0018:ffffc90000a08b70 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8172b300
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fa7cda8
RBP: ffffc90000a08cb0 R08: ffffffff8fa7cdaf R09: 1ffffffff1f4f9b5
R10: dffffc0000000000 R11: fffffbfff1f4f9b6 R12: 1ffff9200014117c
R13: ffffffff81839141 R14: ffffc90000a08ce0 R15: dffffc0000000000
FS:  00007f270870b6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c325000 CR3: 0000000067840000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0xbf/0x9f0 kernel/locking/lockdep.c:5765
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
 _raw_spin_unlock_irqrestore+0x79/0x140 kernel/locking/spinlock.c:194
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x481/0xd50 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0xaad/0xfd0 kernel/printk/printk.c:2985
Code: ff ff e8 a6 94 1f 00 90 0f 0b 90 e9 d8 f8 ff ff e8 98 94 1f 00 e8 c3 22 01 0a 4d 85 f6 74 b6 e8 89 94 1f 00 fb 48 8b 44 24 70 <42> 0f b6 04 38 84 c0 48 8b 7c 24 30 0f 85 22 02 00 00 0f b6 1f 31
RSP: 0018:ffffc9000ef1ec20 EFLAGS: 00000246
RAX: 1ffff92001de3dd0 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000adbe000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000ef1edd0 R08: ffffffff81767ae4 R09: 1ffffffff25dfca0
R10: dffffc0000000000 R11: fffffbfff25dfca1 R12: ffffffff8eb03438
R13: ffffffff8eb033e0 R14: 0000000000000200 R15: dffffc0000000000
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3048
 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348
 _printk+0xd5/0x120 kernel/printk/printk.c:2373
 set_capacity_and_notify+0x220/0x2c0 block/genhd.c:86
 loop_set_size+0x44/0xb0 drivers/block/loop.c:235
 loop_configure+0xd00/0x1250 drivers/block/loop.c:1098
 lo_ioctl+0x8f6/0x21a0
 blkdev_ioctl+0x5e5/0x740 block/ioctl.c:642
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:904 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:890
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2707a7da8b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007f270870ae50 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2707a7da8b
RDX: 0000000000000003 RSI: 0000000000004c00 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000005597
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007f270870af80 R14: 00007f270870af40 R15: 00007f26fd800000
 </TASK>