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: __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 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 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. 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: 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:syslogd state:S stack:25584 pid:4495 tgid:4495 ppid:1 flags:0x00000002 kthread+0x2c6/0x3a0 kernel/kthread.c:388 Call Trace: 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 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: 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 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: 0033:0x7f7d3ac3eb6a 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 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: 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 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:klogd state:R running task stack:25584 pid:4502 tgid:4502 ppid:1 flags:0x00000002 Call Trace: 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:udevd state:R running task stack:26656 pid:4513 tgid:4513 ppid:1 flags:0x00000002 Call Trace: 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:dbus-daemon state:S stack:28464 pid:4711 tgid:4711 ppid:1 flags:0x00000002 Call Trace: 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:dhcpcd state:R running task stack:26168 pid:4726 tgid:4726 ppid:1 flags:0x00000002 Call Trace: 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:dhcpcd state:S stack:23008 pid:4727 tgid:4727 ppid:4726 flags:0x00000002 Call Trace: 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:dhcpcd state:S stack:27632 pid:4728 tgid:4728 ppid:4726 flags:0x00000002 Call Trace: 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:dhcpcd state:S stack:27376 pid:4729 tgid:4729 ppid:4726 flags:0x00000002 Call Trace: 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:sshd state:S stack:27360 pid:4810 tgid:4810 ppid:1 flags:0x00000002 Call Trace: 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:getty state:S stack:23008 pid:4813 tgid:4813 ppid:1 flags:0x00000002 Call Trace: 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:dhcpcd state:S stack:27216 pid:4869 tgid:4869 ppid:4727 flags:0x00000002 Call Trace: 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:dhcpcd state:S stack:26800 pid:4872 tgid:4872 ppid:4727 flags:0x00000002 Call Trace: 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:dhcpcd state:S stack:26720 pid:4876 tgid:4876 ppid:4727 flags:0x00000002 Call Trace: 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:dhcpcd state:S stack:26576 pid:4878 tgid:4878 ppid:4727 flags:0x00000002 Call Trace: 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:dhcpcd state:S stack:27728 pid:4881 tgid:4881 ppid:4727 flags:0x00000002 Call Trace: 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:dhcpcd state:S stack:26800 pid:4883 tgid:4883 ppid:4727 flags:0x00000002 Call Trace: 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:dhcpcd state:S stack:27488 pid:4905 tgid:4905 ppid:4727 flags:0x00000002 Call Trace: 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:kworker/0:2 state:R running task stack:21920 pid:5076 tgid:5076 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: 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:sshd state:S stack:25728 pid:5086 tgid:5086 ppid:4810 flags:0x00000002 Call Trace: 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:syz-executor421 state:S stack:25808 pid:5088 tgid:5088 ppid:5086 flags:0x00000002 Call Trace: 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:syz-executor421 state:R running task stack:27360 pid:5089 tgid:5089 ppid:5088 flags:0x00000002 Call Trace: 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:syz-executor421 state:R running task stack:26976 pid:5090 tgid:5090 ppid:5088 flags:0x00000002 Call Trace: 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:syz-executor421 state:R running task stack:27360 pid:5092 tgid:5092 ppid:5088 flags:0x00000002 Call Trace: 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:syz-executor421 state:R running task stack:27168 pid:5094 tgid:5094 ppid:5088 flags:0x00000002 Call Trace: 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:syz-executor421 state:R running task stack:27072 pid:5097 tgid:5097 ppid:5088 flags:0x00000002 Call Trace: 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:syz-executor421 state:R running task stack:26976 pid:5098 tgid:5098 ppid:5088 flags:0x00000002 Call Trace: 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:kworker/1:1 state:I stack:22480 pid:5100 tgid:5100 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: 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: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: 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: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: 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:udevd state:R running task stack:26768 pid:5104 tgid:5104 ppid:4513 flags:0x0000400a Call Trace: 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 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:udevd state:S stack:26920 pid:5105 tgid:5105 ppid:4513 flags:0x00000002 Call Trace: 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:udevd state:S stack:27136 pid:5106 tgid:5106 ppid:4513 flags:0x00000002 Call Trace: 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:kworker/1:4 state:I stack:29424 pid:5107 tgid:5107 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: 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:udevd state:S stack:26928 pid:5108 tgid:5108 ppid:4513 flags:0x00000002 Call Trace: 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:udevd state:S stack:26736 pid:5109 tgid:5109 ppid:4513 flags:0x00000002 Call Trace: 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:kworker/0:4 state:I stack:29600 pid:5110 tgid:5110 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: 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