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INFO: rcu detected stall in sys_openat (3)

Status: upstream: reported C repro on 2023/09/03 11:10
Subsystems: kernfs mm
[Documentation on labels]
Reported-by: syzbot+23d96fb466ad56cbb5e5@syzkaller.appspotmail.com
First crash: 804d, last: 1d03h
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Discussions (5)
Title Replies (including bot) Last reply
[syzbot] Monthly kernfs report (Apr 2024) 0 (1) 2024/04/08 08:30
[syzbot] Monthly mm report (Mar 2024) 0 (1) 2024/03/19 21:40
[syzbot] Monthly kernfs report (Feb 2024) 0 (1) 2024/02/02 21:05
[syzbot] Monthly mm report (Dec 2023) 0 (1) 2023/12/18 10:47
[syzbot] [fs?] INFO: rcu detected stall in sys_openat (3) 0 (1) 2023/09/03 11:10
▶ ▼ Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: rcu detected stall in sys_openat 3 232d 265d 0/3 auto-obsoleted due to no activity on 2023/12/16 21:24
upstream INFO: rcu detected stall in sys_openat exfat 5 1930d 2008d 0/26 closed as dup on 2018/10/27 13:02
linux-5.15 INFO: rcu detected stall in sys_openat origin:upstream C 9 1d08h 312d 0/3 upstream: reported C repro on 2023/06/19 20:52
linux-6.1 INFO: rcu detected stall in sys_openat (2) origin:upstream C 1 10d 44d 0/3 upstream: reported C repro on 2024/03/13 11:37
upstream INFO: rcu detected stall in sys_openat (2) kernfs 8 813d 1025d 0/26 closed as invalid on 2022/02/08 09:50
android-5-15 BUG: soft lockup in sys_openat 12 2d03h 20d 0/2 premoderation: reported on 2024/04/07 09:29
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2024/04/23 21:03 20m retest repro upstream report log
2024/04/23 21:03 18m retest repro upstream report log
2024/03/02 00:29 23m retest repro linux-next error OK
2024/03/02 00:05 23m retest repro upstream report log
2024/02/07 13:00 16m retest repro upstream report log
2024/02/07 13:00 20m retest repro upstream report log
2024/02/07 13:00 17m retest repro upstream report log
2023/12/08 05:28 19m retest repro upstream report log
2023/11/12 08:51 18m retest repro upstream report log
2023/09/22 07:53 19m retest repro upstream report log

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (3 ticks this GP) idle=db44/1/0x4000000000000000 softirq=6226/6226 fqs=0
rcu: 	(detected by 1, t=10502 jiffies, g=6681, q=181 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
 stack:30336 pid:4477  tgid:4477  ppid:2      flags:0x00004000
NMI backtrace for cpu 0
CPU: 0 PID: 5104 Comm: udevd Not tainted 6.8.0-rc1-syzkaller-00029-g615d30064886 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:write_comp_data+0x2d/0x80 kernel/kcov.c:236
Code: 49 89 f8 49 89 f1 65 48 8b 14 25 80 c2 03 00 65 8b 05 df a5 7b 7e a9 00 01 ff 00 74 0f f6 c4 01 74 59 8b 82 fc 15 00 00 85 c0 <74> 4f 8b 82 d8 15 00 00 83 f8 03 75 44 48 8b 82 e0 15 00 00 8b 92
RSP: 0018:ffffc90000007050 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000007 RCX: ffffffff8a7fe6ee
RDX: ffff888021961dc0 RSI: 0000000000000070 RDI: 0000000000000001
RBP: ffffffff8c1aebc0 R08: 0000000000000001 R09: 0000000000000070
R10: 0000000000000063 R11: 00000000000d9f38 R12: 0000000000000063
R13: 0000000000000001 R14: 000000000000000a R15: 0000000000000033
FS:  00007f80a109cc80(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc3c2030c8 CR3: 00000000215ea000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:341
 format_decode+0x46e/0xba0 lib/vsprintf.c:2634
 vsnprintf+0x13d/0x1870 lib/vsprintf.c:2776
 snprintf+0xc8/0x100 lib/vsprintf.c:2959
 print_caller kernel/printk/printk.c:1333 [inline]
 info_print_prefix+0x135/0x350 kernel/printk/printk.c:1352
 record_print_text+0x143/0x410 kernel/printk/printk.c:1399
 printk_get_next_message+0x2ce/0x7c0 kernel/printk/printk.c:2828
 console_emit_next_record kernel/printk/printk.c:2868 [inline]
 console_flush_all+0x3b3/0xd60 kernel/printk/printk.c:2967
 console_unlock+0x10c/0x260 kernel/printk/printk.c:3036
 vprintk_emit+0x17f/0x5f0 kernel/printk/printk.c:2303
 vprintk+0x7b/0x90 kernel/printk/printk_safe.c:45
 _printk+0xc8/0x100 kernel/printk/printk.c:2328
 sched_show_task kernel/sched/core.c:9165 [inline]
 sched_show_task+0x3ff/0x650 kernel/sched/core.c:9145
 show_state_filter+0xee/0x310 kernel/sched/core.c:9216
 k_spec drivers/tty/vt/keyboard.c:667 [inline]
 k_spec+0xea/0x140 drivers/tty/vt/keyboard.c:656
 kbd_keycode drivers/tty/vt/keyboard.c:1524 [inline]
 kbd_event+0xcc8/0x17c0 drivers/tty/vt/keyboard.c:1543
 input_to_handler+0x382/0x4c0 drivers/input/input.c:132
 input_pass_values+0x5c9/0x840 drivers/input/input.c:161
 input_event_dispose+0x377/0x630 drivers/input/input.c:378
 input_handle_event+0x11c/0xd80 drivers/input/input.c:406
 input_repeat_key+0x251/0x340 drivers/input/input.c:2263
 call_timer_fn+0x193/0x590 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x759/0xaa0 kernel/time/timer.c:2038
 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2051
 __do_softirq+0x21a/0x8de kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__sanitizer_cov_trace_switch+0x1e/0x90 kernel/kcov.c:324
Code: 88 fe ff ff 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 56 41 55 41 54 49 89 fc 55 48 89 f5 53 48 8b 46 08 48 83 f8 20 74 63 77 44 <48> 83 f8 08 74 53 48 83 f8 10 75 2f 41 bd 03 00 00 00 4c 8b 75 00
RSP: 0018:ffffc90004637308 EFLAGS: 00000287
RAX: 0000000000000008 RBX: ffffc900046373b8 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8ac9cc60 RDI: 0000000000000001
RBP: ffffffff8ac9cc60 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
R13: ffffc90004637e70 R14: 0000000000000001 R15: 0000000000000001
 unwind_next_frame+0xeaa/0x2390 arch/x86/kernel/unwind_orc.c:641
 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:47
 __kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:586
 __call_rcu_common.constprop.0+0x9a/0x7b0 kernel/rcu/tree.c:2683
 dentry_free+0xc2/0x160 fs/dcache.c:376
 __dentry_kill+0x48b/0x5f0 fs/dcache.c:622
 shrink_kill fs/dcache.c:1048 [inline]
 shrink_dentry_list+0x140/0x5d0 fs/dcache.c:1075
 shrink_dcache_parent+0xe2/0x530 fs/dcache.c:1509
 d_invalidate fs/dcache.c:1592 [inline]
 d_invalidate+0x143/0x290 fs/dcache.c:1577
 lookup_fast+0x442/0x520 fs/namei.c:1658
 walk_component+0x5b/0x5a0 fs/namei.c:1997
 link_path_walk.part.0.constprop.0+0x724/0xcf0 fs/namei.c:2328
 link_path_walk fs/namei.c:2253 [inline]
 path_openat+0x231/0x2990 fs/namei.c:3794
 do_filp_open+0x1de/0x430 fs/namei.c:3825
 do_sys_openat2+0x176/0x1e0 fs/open.c:1404
 do_sys_open fs/open.c:1419 [inline]
 __do_sys_openat fs/open.c:1435 [inline]
 __se_sys_openat fs/open.c:1430 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1430
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f80a11729a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd522c4ef0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f80a11729a4
RDX: 0000000000080000 RSI: 00007ffd522c5028 RDI: 00000000ffffff9c
RBP: 00007ffd522c5028 R08: 0000000000000008 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
R13: 0000557d5ac33b42 R14: 0000000000000001 R15: 0000557d5b89a910
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 3.176 msecs
rcu: rcu_preempt kthread starved for 10502 jiffies! g6681 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
Call Trace:
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
 <TASK>
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
  running task     stack:28736 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 rescuer_thread+0x88c/0xd00 kernel/workqueue.c:2937
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_timeout+0x137/0x290 kernel/time/timer.c:2183
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 rcu_gp_fqs_loop+0x1ec/0xb10 kernel/rcu/tree.c:1631
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 rcu_gp_kthread+0x24b/0x380 kernel/rcu/tree.c:1830
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
task:syslogd         state:S
 stack:25584 pid:4495  tgid:4495  ppid:1      flags:0x00000002
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 5115 Comm: udevd Not tainted 6.8.0-rc1-syzkaller-00029-g615d30064886 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
RIP: 0010:kvm_wait+0x146/0x180 arch/x86/kernel/kvm.c:1062
 schedule_timeout+0x257/0x290 kernel/time/timer.c:2159
Code: 5b 5d 41 5c 41 5d e9 89 75 4e 00 e8 84 75 4e 00 e8 bf 56 55 00 eb 0c e8 78 75 4e 00 0f 00 2d 11 03 90 09 e8 6c 75 4e 00 fb f4 <5b> 5d 41 5c 41 5d e9 5f 75 4e 00 e8 5a 75 4e 00 e8 05 57 55 00 e9
RSP: 0018:ffffc90004587770 EFLAGS: 00000293

RAX: 0000000000000000 RBX: 0000000000000003 RCX: 1ffffffff242b975
RDX: ffff88802a79bb80 RSI: ffffffff8139acf4 RDI: ffffffff8b2fd380
 __skb_wait_for_more_packets+0x360/0x5e0 net/core/datagram.c:121
RBP: ffff888079bcfc28 R08: 0000000000000001 R09: fffffbfff242abea
R10: ffffffff92155f57 R11: 0000000000000000 R12: 0000000000000003
R13: 0000000000000003 R14: 0000000000000000 R15: ffffed100f379f85
FS:  00007f80a109cc80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f62ad629e90 CR3: 000000001b3b3000 CR4: 0000000000350ef0
 __unix_dgram_recvmsg+0x243/0xee0 net/unix/af_unix.c:2396
Call Trace:
 <IRQ>
 unix_dgram_recvmsg+0xc3/0xf0 net/unix/af_unix.c:2485
 sock_recvmsg_nosec net/socket.c:1046 [inline]
 sock_recvmsg+0xe2/0x170 net/socket.c:1068
 sock_read_iter+0x2c3/0x3c0 net/socket.c:1138
 call_read_iter include/linux/fs.h:2079 [inline]
 new_sync_read fs/read_write.c:395 [inline]
 vfs_read+0x9f3/0xb70 fs/read_write.c:476
 ksys_read+0x1f0/0x250 fs/read_write.c:619
 </IRQ>
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 <TASK>
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f7d3ac3eb6a
RSP: 002b:00007ffe9ae10188 EFLAGS: 00000246
 pv_wait arch/x86/include/asm/paravirt.h:596 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x959/0xc70 kernel/locking/qspinlock.c:511
 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f7d3ac3eb6a
RDX: 00000000000000ff RSI: 000055a0cb5f2950 RDI: 0000000000000000
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x20e/0x2b0 kernel/locking/spinlock_debug.c:116
RBP: 000055a0cb5f2910 R08: 0000000000000001 R09: 0000000000000000
R10: 00007f7d3addd3a3 R11: 0000000000000246 R12: 000055a0cb5f29dc
R13: 000055a0cb5f2950 R14: 0000000000000000 R15: 00007f7d3ae1ba80
 spin_lock include/linux/spinlock.h:351 [inline]
 __dentry_kill+0x290/0x5f0 fs/dcache.c:614
 </TASK>
 dput.part.0+0x4ac/0x9a0 fs/dcache.c:845
task:acpid           state:R
 dput+0x1f/0x30 fs/dcache.c:835
  running task     stack:23008 pid:4498  tgid:4498  ppid:1      flags:0x00000002
 lookup_fast+0x275/0x520 fs/namei.c:1659
Call Trace:
 <TASK>
 walk_component+0x5b/0x5a0 fs/namei.c:1997
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 link_path_walk.part.0.constprop.0+0x724/0xcf0 fs/namei.c:2328
 link_path_walk fs/namei.c:2253 [inline]
 path_openat+0x231/0x2990 fs/namei.c:3794
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 do_filp_open+0x1de/0x430 fs/namei.c:3825
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_select+0x12f0/0x17b0 fs/select.c:607
 do_sys_openat2+0x176/0x1e0 fs/open.c:1404
 do_sys_open fs/open.c:1419 [inline]
 __do_sys_openat fs/open.c:1435 [inline]
 __se_sys_openat fs/open.c:1430 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1430
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f80a11729a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd522c4ef0 EFLAGS: 00000246
 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f80a11729a4
RDX: 0000000000080000 RSI: 00007ffd522c5028 RDI: 00000000ffffff9c
RBP: 00007ffd522c5028 R08: 0000000000000008 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
 core_sys_select+0x45b/0xb30 fs/select.c:681
R13: 0000557d5ac33b42 R14: 0000000000000001 R15: 0000557d5b89a910
 </TASK>
 do_pselect.constprop.0+0x19c/0x1e0 fs/select.c:763
 __do_sys_pselect6 fs/select.c:804 [inline]
 __se_sys_pselect6 fs/select.c:795 [inline]
 __x64_sys_pselect6+0x150/0x1c0 fs/select.c:795
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fc17e228591
RSP: 002b:00007ffd1421e050 EFLAGS: 00000246 ORIG_RAX: 000000000000010e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc17e228591
RDX: 0000000000000000 RSI: 00007ffd1421e148 RDI: 000000000000000f
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000560908bf2178 R14: 0000000000000000 R15: 000000000000000d
 </TASK>
task:klogd           state:R  running task     stack:25584 pid:4502  tgid:4502  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 syslog_print+0x214/0x5d0 kernel/printk/printk.c:1576
 do_syslog+0x2d4/0x580 kernel/printk/printk.c:1728
 __do_sys_syslog kernel/printk/printk.c:1820 [inline]
 __se_sys_syslog kernel/printk/printk.c:1818 [inline]
 __x64_sys_syslog+0x74/0xb0 kernel/printk/printk.c:1818
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fd9146cafa7
RSP: 002b:00007ffe201e35f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000067
RAX: ffffffffffffffda RBX: 00007fd9148694a0 RCX: 00007fd9146cafa7
RDX: 00000000000003ff RSI: 00007fd9148694a0 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000007 R09: f214480397fefeb3
R10: 0000000000004000 R11: 0000000000000206 R12: 00007fd9148694a0
R13: 00007fd914859212 R14: 00007fd91486959f R15: 00007fd91486959f
 </TASK>
task:udevd           state:R  running task     stack:26656 pid:4513  tgid:4513  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x211/0x440 kernel/time/hrtimer.c:2308
 ep_poll fs/eventpoll.c:1920 [inline]
 do_epoll_wait+0x131c/0x1a00 fs/eventpoll.c:2317
 __do_sys_epoll_wait fs/eventpoll.c:2329 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2324 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2324
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f80a117f457
RSP: 002b:00007ffd522c96e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 00007ffd522c97e8 RCX: 00007f80a117f457
RDX: 0000000000000008 RSI: 00007ffd522c97e8 RDI: 000000000000000b
RBP: 0000557d5b8bcd90 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000000bb8 R11: 0000000000000246 R12: 0000000000000bb8
R13: 0000557d5b8bffb4 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dbus-daemon     state:S stack:28464 pid:4711  tgid:4711  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 ep_poll fs/eventpoll.c:1920 [inline]
 do_epoll_wait+0x131c/0x1a00 fs/eventpoll.c:2317
 __do_sys_epoll_wait fs/eventpoll.c:2329 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2324 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2324
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fcbd06f4457
RSP: 002b:00007fffba5f6598 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 00007fffba5f65a8 RCX: 00007fcbd06f4457
RDX: 0000000000000040 RSI: 00007fffba5f65a8 RDI: 0000000000000003
RBP: 00007fffba5f6938 R08: 0000000000000020 R09: 0000000000000001
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fffba5f6938 R15: 00007fffba5f6c48
 </TASK>
task:dhcpcd          state:R  running task     stack:26168 pid:4726  tgid:4726  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x211/0x440 kernel/time/hrtimer.c:2308
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 00007ffd7e6d4a80 RSI: 0000000000000004 RDI: 00005609ccbd9b60
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 0000000000000001
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 00007ffd7e6d4aa8
R13: 00005609cac93610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:23008 pid:4727  tgid:4727  ppid:4726   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 00005609ccbcee00
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 00007ffd7e6b4760
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005609cac93610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:27632 pid:4728  tgid:4728  ppid:4726   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00005609ccbd7f20
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 00005609cac933d0
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005609cac93610 R14: 0000000000000003 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:27376 pid:4729  tgid:4729  ppid:4726   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 00005609ccbd7f20
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 00005609cac933d0
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005609cac93610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:sshd            state:S stack:27360 pid:4810  tgid:4810  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f64c8119ad5
RSP: 002b:00007ffd1cc59470 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000562aa31854d0 RCX: 00007f64c8119ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000562aa31859b0
RBP: 0000000000000064 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffd1cc59628 R11: 0000000000000246 R12: 0000562aa31859b0
R13: 00007ffd1cc59628 R14: 0000000000000002 R15: 0000562aa318599c
 </TASK>
task:getty           state:S stack:23008 pid:4813  tgid:4813  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_timeout+0x257/0x290 kernel/time/timer.c:2159
 wait_woken+0x175/0x1c0 kernel/sched/wait.c:423
 n_tty_read+0x1107/0x1490 drivers/tty/n_tty.c:2267
 iterate_tty_read drivers/tty/tty_io.c:862 [inline]
 tty_read+0x317/0x5b0 drivers/tty/tty_io.c:937
 call_read_iter include/linux/fs.h:2079 [inline]
 new_sync_read fs/read_write.c:395 [inline]
 vfs_read+0x6bb/0xb70 fs/read_write.c:476
 ksys_read+0x12f/0x250 fs/read_write.c:619
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f13834b0b6a
RSP: 002b:00007fffb269c228 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000559ee8873910 RCX: 00007f13834b0b6a
RDX: 0000000000000001 RSI: 00007fffb269c240 RDI: 0000000000000000
RBP: 0000559ee8873970 R08: 0000000000000000 R09: 4a7ca1ca4e1a29c4
R10: 0000000000000010 R11: 0000000000000246 R12: 0000559ee88739ac
R13: 00007fffb269c240 R14: 0000000000000000 R15: 0000559ee88739ac
 </TASK>
task:dhcpcd          state:S stack:27216 pid:4869  tgid:4869  ppid:4727   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00005609ccbe12d0
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005609cac93610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:26800 pid:4872  tgid:4872  ppid:4727   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00005609ccbe12d0
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005609cac93610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:26720 pid:4876  tgid:4876  ppid:4727   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00005609ccbe12d0
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005609cac93610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:26576 pid:4878  tgid:4878  ppid:4727   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00005609ccbe12d0
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005609cac93610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:27728 pid:4881  tgid:4881  ppid:4727   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00005609ccbe12d0
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005609cac93610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:26800 pid:4883  tgid:4883  ppid:4727   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00005609ccbe12d0
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005609cac93610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:27488 pid:4905  tgid:4905  ppid:4727   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce606c8ad5
RSP: 002b:00007ffd7e6d4a60 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00005609ccbcee20 RCX: 00007fce606c8ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00005609ccbe12d0
RBP: 00007ffd7e6d4db0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffd7e6d4db0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005609cac93610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:kworker/0:2     state:R  running task     stack:21920 pid:5076  tgid:5076  ppid:2      flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 worker_thread+0x2e1/0x1290 kernel/workqueue.c:2802
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
task:sshd            state:S stack:25728 pid:5086  tgid:5086  ppid:4810   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x211/0x440 kernel/time/hrtimer.c:2308
 poll_schedule_timeout.constprop.0+0xbc/0x190 fs/select.c:244
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xad9/0xde0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll fs/select.c:1101 [inline]
 __x64_sys_ppoll+0x256/0x2d0 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f19a9319ad5
RSP: 002b:00007ffd87303dc0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00000000000668a0 RCX: 00007f19a9319ad5
RDX: 00007ffd87303de0 RSI: 0000000000000004 RDI: 0000563af1c967d0
RBP: 0000563af1c953a0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffd87303ec8 R11: 0000000000000246 R12: 0000563af09d8aa4
R13: 0000000000000001 R14: 0000563af09d93e8 R15: 00007ffd87303e48
 </TASK>
task:syz-executor421 state:S stack:25808 pid:5088  tgid:5088  ppid:5086   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 do_nanosleep+0x218/0x500 kernel/time/hrtimer.c:2047
 hrtimer_nanosleep+0x1ae/0x440 kernel/time/hrtimer.c:2100
 common_nsleep+0xa1/0xc0 kernel/time/posix-timers.c:1350
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1373 [inline]
 __x64_sys_clock_nanosleep+0x344/0x490 kernel/time/posix-timers.c:1373
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f62ad61e503
RSP: 002b:00007ffc3c203178 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: ffffffffffffffb8 RCX: 00007f62ad61e503
RDX: 00007ffc3c203190 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffc3c203190 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffc3c203478 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
task:syz-executor421 state:R  running task     stack:27360 pid:5089  tgid:5089  ppid:5088   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 do_nanosleep+0x218/0x500 kernel/time/hrtimer.c:2047
 hrtimer_nanosleep+0x1ae/0x440 kernel/time/hrtimer.c:2100
 common_nsleep+0xa1/0xc0 kernel/time/posix-timers.c:1350
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1373 [inline]
 __x64_sys_clock_nanosleep+0x344/0x490 kernel/time/posix-timers.c:1373
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f62ad61e503
RSP: 002b:00007ffc3c203188 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007ffc3c2031f0 RCX: 00007f62ad61e503
RDX: 00007ffc3c2031a0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000001411 R08: 000000000000022a R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240
R13: 000000000008745f R14: 00007ffc3c2031dc R15: 00007ffc3c2031e0
 </TASK>
task:syz-executor421 state:R  running task     stack:26976 pid:5090  tgid:5090  ppid:5088   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 do_nanosleep+0x218/0x500 kernel/time/hrtimer.c:2047
 hrtimer_nanosleep+0x1ae/0x440 kernel/time/hrtimer.c:2100
 common_nsleep+0xa1/0xc0 kernel/time/posix-timers.c:1350
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1373 [inline]
 __x64_sys_clock_nanosleep+0x344/0x490 kernel/time/posix-timers.c:1373
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f62ad61e503
RSP: 002b:00007ffc3c203188 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007ffc3c2031f0 RCX: 00007f62ad61e503
RDX: 00007ffc3c2031a0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000001412 R08: 000000000000022a R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240
R13: 000000000008776c R14: 00007ffc3c2031dc R15: 00007ffc3c2031e0
 </TASK>
task:syz-executor421 state:R  running task     stack:27360 pid:5092  tgid:5092  ppid:5088   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 do_nanosleep+0x218/0x500 kernel/time/hrtimer.c:2047
 hrtimer_nanosleep+0x1ae/0x440 kernel/time/hrtimer.c:2100
 common_nsleep+0xa1/0xc0 kernel/time/posix-timers.c:1350
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1373 [inline]
 __x64_sys_clock_nanosleep+0x344/0x490 kernel/time/posix-timers.c:1373
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f62ad61e503
RSP: 002b:00007ffc3c203188 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007ffc3c2031f0 RCX: 00007f62ad61e503
RDX: 00007ffc3c2031a0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000000140f R08: 000000000000022a R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240
R13: 0000000000086cf3 R14: 00007ffc3c2031dc R15: 00007ffc3c2031e0
 </TASK>
task:syz-executor421 state:R  running task     stack:27168 pid:5094  tgid:5094  ppid:5088   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 do_nanosleep+0x218/0x500 kernel/time/hrtimer.c:2047
 hrtimer_nanosleep+0x1ae/0x440 kernel/time/hrtimer.c:2100
 common_nsleep+0xa1/0xc0 kernel/time/posix-timers.c:1350
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1373 [inline]
 __x64_sys_clock_nanosleep+0x344/0x490 kernel/time/posix-timers.c:1373
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f62ad61e503
RSP: 002b:00007ffc3c203188 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007ffc3c2031f0 RCX: 00007f62ad61e503
RDX: 00007ffc3c2031a0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000000140c R08: 000000000000022a R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240
R13: 000000000008698a R14: 00007ffc3c2031dc R15: 00007ffc3c2031e0
 </TASK>
task:syz-executor421 state:R  running task     stack:27072 pid:5097  tgid:5097  ppid:5088   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 do_nanosleep+0x218/0x500 kernel/time/hrtimer.c:2047
 hrtimer_nanosleep+0x1ae/0x440 kernel/time/hrtimer.c:2100
 common_nsleep+0xa1/0xc0 kernel/time/posix-timers.c:1350
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1373 [inline]
 __x64_sys_clock_nanosleep+0x344/0x490 kernel/time/posix-timers.c:1373
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f62ad61e503
RSP: 002b:00007ffc3c203188 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007ffc3c2031f0 RCX: 00007f62ad61e503
RDX: 00007ffc3c2031a0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000001410 R08: 000000000000022a R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240
R13: 0000000000086e73 R14: 00007ffc3c2031dc R15: 00007ffc3c2031e0
 </TASK>
task:syz-executor421 state:R  running task     stack:26976 pid:5098  tgid:5098  ppid:5088   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 do_nanosleep+0x218/0x500 kernel/time/hrtimer.c:2047
 hrtimer_nanosleep+0x1ae/0x440 kernel/time/hrtimer.c:2100
 common_nsleep+0xa1/0xc0 kernel/time/posix-timers.c:1350
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1373 [inline]
 __x64_sys_clock_nanosleep+0x344/0x490 kernel/time/posix-timers.c:1373
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f62ad61e503
RSP: 002b:00007ffc3c203188 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007ffc3c2031f0 RCX: 00007f62ad61e503
RDX: 00007ffc3c2031a0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000000140d R08: 000000000000022a R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240
R13: 00000000000869f4 R14: 00007ffc3c2031dc R15: 00007ffc3c2031e0
 </TASK>
task:kworker/1:1     state:I stack:22480 pid:5100  tgid:5100  ppid:2      flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 worker_thread+0x2e1/0x1290 kernel/workqueue.c:2802
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
task:kworker/1:3     state:R  running task     stack:22208 pid:5102  tgid:5102  ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_timeout+0x137/0x290 kernel/time/timer.c:2183
 schedule_timeout_uninterruptible kernel/time/timer.c:2217 [inline]
 msleep+0xa1/0xe0 kernel/time/timer.c:2338
 hub_port_debounce+0x183/0x3d0 drivers/usb/core/hub.c:4624
 hub_port_debounce_be_stable drivers/usb/core/hub.h:181 [inline]
 hub_port_connect drivers/usb/core/hub.c:5317 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5605 [inline]
 port_event drivers/usb/core/hub.c:5765 [inline]
 hub_event+0x3470/0x4e10 drivers/usb/core/hub.c:5847
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
task:kworker/0:3     state:R  running task     stack:26064 pid:5103  tgid:5103  ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_timeout+0x137/0x290 kernel/time/timer.c:2183
 schedule_timeout_uninterruptible kernel/time/timer.c:2217 [inline]
 msleep+0xa1/0xe0 kernel/time/timer.c:2338
 hub_port_wait_reset drivers/usb/core/hub.c:2864 [inline]
 hub_port_reset+0xb92/0x1cc0 drivers/usb/core/hub.c:2992
 hub_port_init+0x712/0x39e0 drivers/usb/core/hub.c:4955
 hub_port_connect drivers/usb/core/hub.c:5394 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5605 [inline]
 port_event drivers/usb/core/hub.c:5765 [inline]
 hub_event+0x2b61/0x4e10 drivers/usb/core/hub.c:5847
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
task:udevd           state:R  running task     stack:26768 pid:5104  tgid:5104  ppid:4513   flags:0x0000400a
Call Trace:
 <IRQ>
 sched_show_task kernel/sched/core.c:9171 [inline]
 sched_show_task+0x42e/0x650 kernel/sched/core.c:9145
 show_state_filter+0xee/0x310 kernel/sched/core.c:9216
 k_spec drivers/tty/vt/keyboard.c:667 [inline]
 k_spec+0xea/0x140 drivers/tty/vt/keyboard.c:656
 kbd_keycode drivers/tty/vt/keyboard.c:1524 [inline]
 kbd_event+0xcc8/0x17c0 drivers/tty/vt/keyboard.c:1543
 input_to_handler+0x382/0x4c0 drivers/input/input.c:132
 input_pass_values+0x5c9/0x840 drivers/input/input.c:161
 input_event_dispose+0x377/0x630 drivers/input/input.c:378
 input_handle_event+0x11c/0xd80 drivers/input/input.c:406
 input_repeat_key+0x251/0x340 drivers/input/input.c:2263
 call_timer_fn+0x193/0x590 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x759/0xaa0 kernel/time/timer.c:2038
 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2051
 __do_softirq+0x21a/0x8de kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__sanitizer_cov_trace_switch+0x1e/0x90 kernel/kcov.c:324
Code: 88 fe ff ff 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 56 41 55 41 54 49 89 fc 55 48 89 f5 53 48 8b 46 08 48 83 f8 20 74 63 77 44 <48> 83 f8 08 74 53 48 83 f8 10 75 2f 41 bd 03 00 00 00 4c 8b 75 00
RSP: 0018:ffffc90004637308 EFLAGS: 00000287
RAX: 0000000000000008 RBX: ffffc900046373b8 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8ac9cc60 RDI: 0000000000000001
RBP: ffffffff8ac9cc60 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
R13: ffffc90004637e70 R14: 0000000000000001 R15: 0000000000000001
 unwind_next_frame+0xeaa/0x2390 arch/x86/kernel/unwind_orc.c:641
 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:47
 __kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:586
 __call_rcu_common.constprop.0+0x9a/0x7b0 kernel/rcu/tree.c:2683
 dentry_free+0xc2/0x160 fs/dcache.c:376
 __dentry_kill+0x48b/0x5f0 fs/dcache.c:622
 shrink_kill fs/dcache.c:1048 [inline]
 shrink_dentry_list+0x140/0x5d0 fs/dcache.c:1075
 shrink_dcache_parent+0xe2/0x530 fs/dcache.c:1509
 d_invalidate fs/dcache.c:1592 [inline]
 d_invalidate+0x143/0x290 fs/dcache.c:1577
 lookup_fast+0x442/0x520 fs/namei.c:1658
 walk_component+0x5b/0x5a0 fs/namei.c:1997
 link_path_walk.part.0.constprop.0+0x724/0xcf0 fs/namei.c:2328
 link_path_walk fs/namei.c:2253 [inline]
 path_openat+0x231/0x2990 fs/namei.c:3794
 do_filp_open+0x1de/0x430 fs/namei.c:3825
 do_sys_openat2+0x176/0x1e0 fs/open.c:1404
 do_sys_open fs/open.c:1419 [inline]
 __do_sys_openat fs/open.c:1435 [inline]
 __se_sys_openat fs/open.c:1430 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1430
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f80a11729a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd522c4ef0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f80a11729a4
RDX: 0000000000080000 RSI: 00007ffd522c5028 RDI: 00000000ffffff9c
RBP: 00007ffd522c5028 R08: 0000000000000008 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
R13: 0000557d5ac33b42 R14: 0000000000000001 R15: 0000557d5b89a910
 </TASK>
task:udevd           state:S stack:26920 pid:5105  tgid:5105  ppid:4513   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 ep_poll fs/eventpoll.c:1920 [inline]
 do_epoll_wait+0x131c/0x1a00 fs/eventpoll.c:2317
 __do_sys_epoll_wait fs/eventpoll.c:2329 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2324 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2324
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f80a117f457
RSP: 002b:00007ffd522c9538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f80a117f457
RDX: 0000000000000004 RSI: 00007ffd522c9578 RDI: 0000000000000004
RBP: 0000557d5b8bbe10 R08: 0000000000000007 R09: b6b8805e2a19d205
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000557d5b8c1fb0
R13: 00007ffd522c9578 R14: 00000000ffffffff R15: 0000557d5b89a910
 </TASK>
task:udevd           state:S stack:27136 pid:5106  tgid:5106  ppid:4513   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 ep_poll fs/eventpoll.c:1920 [inline]
 do_epoll_wait+0x131c/0x1a00 fs/eventpoll.c:2317
 __do_sys_epoll_wait fs/eventpoll.c:2329 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2324 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2324
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f80a117f457
RSP: 002b:00007ffd522c9538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f80a117f457
RDX: 0000000000000004 RSI: 00007ffd522c9578 RDI: 0000000000000004
RBP: 0000557d5b8bbe10 R08: 0000000000000007 R09: b6b8805e2a19d205
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000557d5b938ef0
R13: 00007ffd522c9578 R14: 00000000ffffffff R15: 0000557d5b89a910
 </TASK>
task:kworker/1:4     state:I stack:29424 pid:5107  tgid:5107  ppid:2      flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 worker_thread+0x2e1/0x1290 kernel/workqueue.c:2802
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
task:udevd           state:S stack:26928 pid:5108  tgid:5108  ppid:4513   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 ep_poll fs/eventpoll.c:1920 [inline]
 do_epoll_wait+0x131c/0x1a00 fs/eventpoll.c:2317
 __do_sys_epoll_wait fs/eventpoll.c:2329 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2324 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2324
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f80a117f457
RSP: 002b:00007ffd522c9538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f80a117f457
RDX: 0000000000000004 RSI: 00007ffd522c9578 RDI: 0000000000000004
RBP: 0000557d5b8bbe10 R08: 0000000000000007 R09: b6b8805e2a19d205
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000557d5b8bafc0
R13: 00007ffd522c9578 R14: 00000000ffffffff R15: 0000557d5b89a910
 </TASK>
task:udevd           state:S stack:26736 pid:5109  tgid:5109  ppid:4513   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_hrtimeout_range_clock+0x3c9/0x440 kernel/time/hrtimer.c:2292
 ep_poll fs/eventpoll.c:1920 [inline]
 do_epoll_wait+0x131c/0x1a00 fs/eventpoll.c:2317
 __do_sys_epoll_wait fs/eventpoll.c:2329 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2324 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2324
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f80a117f457
RSP: 002b:00007ffd522c9538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f80a117f457
RDX: 0000000000000004 RSI: 00007ffd522c9578 RDI: 0000000000000004
RBP: 0000557d5b8ba780 R08: 0000000000000007 R09: b6b8805e2a19d205
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000557d5b8bde60
R13: 00007ffd522c9578 R14: 00000000ffffffff R15: 0000557d5b89a910
 </TASK>
task:kworker/0:4     state:I stack:29600 pid:5110  tgid:5110  ppid:2      flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 worker_thread+0x2e1/0x1290 kernel/workqueue.c:2802

Crashes (38):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/01/24 11:57 upstream 615d30064886 1e153dc8 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_openat
2024/01/17 22:28 upstream 052d534373b7 915053c7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_openat
2023/10/29 01:08 upstream 56567a20b22b 3c418d72 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_openat
2023/08/30 11:02 upstream d68b4b6f307d b42ca3a7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_openat
2024/02/16 15:21 linux-next 2c3b09aac00d 578f7538 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_openat
2024/04/24 07:33 upstream 9d1ddab261f3 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_openat
2024/04/06 00:18 upstream fe46a7dd189e 18ea8213 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_openat
2023/12/11 03:56 upstream a39b6ac3781d 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_openat
2023/10/04 03:06 upstream cbf3a2cb156a 65faba36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_openat
2023/08/04 10:34 upstream c1a515d3c027 74621247 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_openat
2023/07/08 00:25 upstream 4f6b6c2b2f86 668cb1fa .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_openat
2023/06/07 17:07 upstream a27648c74210 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_openat
2023/03/29 04:06 upstream fcd476ea6a88 fc067f05 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_openat
2023/02/17 03:34 upstream 3ac88fa4605e 851bc19a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_openat
2023/01/21 14:42 upstream f883675bf652 559a440a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_openat
2022/07/14 02:57 upstream 4a57a8400075 5d921b08 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_openat
2022/05/23 03:54 upstream 4b0986a3613c 7268fa62 .config console log report info ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_openat
2022/04/22 13:38 upstream d569e86915b7 2738b391 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_openat
2022/02/12 11:50 upstream 83e396641110 8b9ca619 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_openat
2024/03/10 01:39 net c8a5c731fd12 6ee49f2e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_openat
2024/04/26 06:52 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing a160e1202ca3 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2024/03/24 03:17 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing a788e53c05ae 0ea90952 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2024/03/07 13:39 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing dfea18989aa7 2b789849 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2024/02/12 02:17 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 88bae831f381 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2023/12/24 11:53 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 1760bfa7d7ca fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2023/11/24 04:39 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 6acba0345b68 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2023/11/22 12:36 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing e8d69c2b55af cb976f63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2023/10/24 18:55 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing ec0989703642 17e6d526 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2023/10/06 15:29 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 1053c4a4b8fc ea12a918 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2023/09/08 07:41 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 7ba2090ca64e 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2023/08/30 14:16 linux-next 56585460cc2e 84803932 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_openat
2023/08/23 22:07 linux-next e3f80d3eae76 4d7ae7ab .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_openat
2023/05/31 04:28 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 922c0cb578ac 09898419 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2023/01/23 10:17 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing dd2f003e4e85 44388686 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2022/11/12 18:15 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing dd65a243a915 f42ee5d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2022/10/10 05:17 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing a6afa4199d3d aea5da89 .config console log report info [disk image] [vmlinux] ci2-upstream-usb INFO: rcu detected stall in sys_openat
2022/06/01 10:40 linux-next 5d8e7e3bbaaf 3666edfe .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_openat
2022/04/25 20:25 linux-next e7d6987e09a3 152baedd .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_openat
* Struck through repros no longer work on HEAD.