syzbot

 sign-in | mailing list | source | docs
🐞 Open [1651]
≡ Subsystems
🐞 Fixed [6000]
🐞 Invalid [14793]
⬇ Missing Backports [136]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
Total Repo Heatmap Subsystems Heatmap
💬 Send us feedback

INFO: rcu detected stall in kernfs_fop_open (4)

Status: auto-obsoleted due to no activity on 2023/03/09 20:29
Subsystems: kernel
[Documentation on labels]
First crash: 789d, last: 789d
▶ ▼ Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in kernfs_fop_open (3) kernfs 2 950d 999d 0/28 auto-closed as invalid on 2022/09/20 22:08
upstream INFO: rcu detected stall in kernfs_fop_open kernel 1 1882d 1882d 0/28 closed as invalid on 2019/12/04 14:04
linux-5.15 INFO: rcu detected stall in kernfs_fop_open 1 601d 601d 0/3 auto-obsoleted due to no activity on 2023/09/14 10:24
upstream INFO: rcu detected stall in kernfs_fop_open (2) kernel 1 1846d 1846d 0/28 closed as invalid on 2020/01/09 08:13
upstream INFO: rcu detected stall in kernfs_fop_open (5) cgroups 2 405d 451d 0/28 auto-obsoleted due to no activity on 2024/03/18 04:35
android-5-15 BUG: soft lockup in kernfs_fop_open 7 187d 286d 0/2 auto-obsoleted due to no activity on 2024/10/23 00:09

Sample crash report:
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 1-...D
 } 2655 jiffies s: 4337 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
R13: 00007fff9a9933f0 R14: 00007f2b87dac9d8 R15: 000000000000000c
NMI backtrace for cpu 1
CPU: 1 PID: 3822 Comm: udevd Not tainted 6.1.0-rc7-syzkaller-00101-g01f856ae6d0c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:io_serial_out+0x79/0xb0 drivers/tty/serial/8250/8250_port.c:467
Code: fc 89 e9 41 d3 e7 48 83 c3 40 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 e1 78 26 fd 44 03 3b 44 89 f0 44 89 fa ee <5b> 41 5c 41 5e 41 5f 5d c3 89 e9 80 e1 07 38 c1 7c ab 48 89 ef e8
RSP: 0018:ffffc900001df7d0 EFLAGS: 00000002
RAX: 0000000000000020 RBX: ffffffff922a6da0 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000000 R08: ffffffff84bb16c6 R09: ffffed1003dba047
R10: ffffed1003dba047 R11: 1ffff11003dba046 R12: dffffc0000000000
R13: ffffffff91f60d02 R14: 0000000000000020 R15: 00000000000003f8
FS:  00007fde26eff840(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002030c030 CR3: 0000000061307000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 serial8250_console_write+0x1510/0x1b00 drivers/tty/serial/8250/8250_port.c:3436
 call_console_driver kernel/printk/printk.c:1942 [inline]
 console_emit_next_record+0x7a4/0xa60 kernel/printk/printk.c:2731
 console_unlock+0x27c/0x6f0 kernel/printk/printk.c:2860
 vprintk_emit+0xd1/0x1e0 kernel/printk/printk.c:2268
 _printk+0xcf/0x10f kernel/printk/printk.c:2289
 __show_regs+0x271/0x500 arch/x86/kernel/process_64.c:89
 show_regs_if_on_stack arch/x86/kernel/dumpstack.c:167 [inline]
 show_trace_log_lvl+0x562/0x630 arch/x86/kernel/dumpstack.c:298
 sched_show_task+0x49b/0x640 kernel/sched/core.c:8897
 show_state_filter+0x188/0x270 kernel/sched/core.c:8942
 kbd_keycode drivers/tty/vt/keyboard.c:1524 [inline]
 kbd_event+0x2a76/0x3ce0 drivers/tty/vt/keyboard.c:1543
 input_to_handler drivers/input/input.c:130 [inline]
 input_pass_values+0xa2d/0x12b0 drivers/input/input.c:159
 input_event_dispose+0x3d2/0x620 drivers/input/input.c:385
 input_handle_event+0x3f2/0xa80 drivers/input/input.c:402
 input_event+0x9c/0xc0 drivers/input/input.c:431
 hidinput_hid_event+0x130e/0x1bd0 drivers/hid/hid-input.c:1638
 hid_process_event+0x458/0x5a0 drivers/hid/hid-core.c:1527
 hid_input_array_field+0x297/0x620 drivers/hid/hid-core.c:1631
 hid_process_report drivers/hid/hid-core.c:1681 [inline]
 hid_report_raw_event+0xf9e/0x18b0 drivers/hid/hid-core.c:1998
 hid_input_report+0x408/0x4f0 drivers/hid/hid-core.c:2066
 hid_irq_in+0x459/0x690 drivers/hid/usbhid/hid-core.c:284
 __usb_hcd_giveback_urb+0x369/0x530 drivers/usb/core/hcd.c:1671
 dummy_timer+0x86b/0x3110 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0xf5/0x210 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers+0x76a/0x980 kernel/time/timer.c:1790
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803
 __do_softirq+0x277/0x75b kernel/softirq.c:571
 __irq_exit_rcu+0xec/0x170 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:30 [inline]
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:52 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:178 [inline]
RIP: 0010:unwind_next_frame+0x57f/0x24c0 arch/x86/kernel/unwind_orc.c:448
Code: f8 48 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 1c 47 48 89 d8 48 c1 e8 03 42 0f b6 04 08 84 c0 75 27 48 63 03 <48> 01 d8 48 8d 4b 04 4c 39 e0 4c 0f 46 f9 48 8d 43 fc 4c 0f 47 e8
RSP: 0018:ffffc900048bf2a0 EFLAGS: 00000246
RAX: fffffffff2d904dc RBX: ffffffff8ea11bd8 RCX: 0000000000000000
RDX: ffffffff8f18ebba RSI: ffffffff817a21dd RDI: ffffffff813d6dc3
RBP: ffffffff8ea11bd8 R08: 0000000000000001 R09: dffffc0000000000
R10: fffff52000917e7c R11: 1ffff92000917e7a R12: ffffffff817a21dc
R13: ffffffff8ea11bd8 R14: ffffffff8ea11bd8 R15: ffffffff8ea11bd8
 arch_stack_walk+0x112/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x12d/0x1f0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4c/0x70 mm/kasan/common.c:52
 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:325
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slab.h:737 [inline]
 slab_alloc_node mm/slub.c:3398 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x1cc/0x300 mm/slub.c:3422
 kmem_cache_zalloc include/linux/slab.h:679 [inline]
 seq_open+0x5e/0x130 fs/seq_file.c:63
 kernfs_fop_open+0x606/0xc80
 do_dentry_open+0x85f/0x11b0 fs/open.c:882
 do_open fs/namei.c:3557 [inline]
 path_openat+0x260e/0x2e00 fs/namei.c:3714
 do_filp_open+0x275/0x500 fs/namei.c:3741
 do_sys_openat2+0x13b/0x500 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1337
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fde26b25697
Code: 25 00 00 41 00 3d 00 00 41 00 74 37 64 8b 04 25 18 00 00 00 85 c0 75 5b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 85 00 00 00 48 83 c4 68 5d 41 5c c3 0f 1f
RSP: 002b:00007ffda515a140 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000562be25f1dd0 RCX: 00007fde26b25697
RDX: 0000000000080000 RSI: 00007ffda515a258 RDI: 00000000ffffff9c
RBP: 00007ffda515a258 R08: 0000562be25f8ae9 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
R13: 0000562be25f1ec0 R14: 00007ffda515a258 R15: 0000562be1d19a7c
 </TASK>
 </TASK>
task:syz-executor.0  state:S stack:22208 pid:3660  ppid:3650   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 do_wait+0x7a4/0x9d0 kernel/exit.c:1562
 kernel_wait4+0x29c/0x3e0 kernel/exit.c:1706
 __do_sys_wait4 kernel/exit.c:1734 [inline]
 __se_sys_wait4 kernel/exit.c:1730 [inline]
 __x64_sys_wait4+0x130/0x1e0 kernel/exit.c:1730
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd23f889cb7
RSP: 002b:00007ffc75cd2880 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000000192 RCX: 00007fd23f889cb7
RDX: 0000000040000000 RSI: 00007ffc75cd290c RDI: 00000000ffffffff
RBP: 00007ffc75cd290c R08: 0000000000000000 R09: 00007fd23f988640
R10: 0000000000000000 R11: 0000000000000293 R12: 0000555555918810
R13: 000055555591886b R14: 0000000000000000 R15: 00007ffc75cd2970
 </TASK>
task:syz-executor.2  state:D stack:22136 pid:3662  ppid:3654   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 io_schedule+0x83/0x100 kernel/sched/core.c:8741
 bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
 __wait_on_bit+0xb5/0x170 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0x1d4/0x250 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 do_get_write_access+0x10e/0xbd0 fs/jbd2/transaction.c:1107
 jbd2_journal_get_write_access+0x108/0x140 fs/jbd2/transaction.c:1242
 __ext4_journal_get_write_access+0x256/0x6a0 fs/ext4/ext4_jbd2.c:235
 ext4_reserve_inode_write+0x280/0x380 fs/ext4/inode.c:5807
 __ext4_mark_inode_dirty+0x139/0x6a0 fs/ext4/inode.c:5973
 ext4_dirty_inode+0xbe/0x100 fs/ext4/inode.c:6010
 __mark_inode_dirty+0x1e7/0x600 fs/fs-writeback.c:2408
 generic_update_time fs/inode.c:1859 [inline]
 inode_update_time fs/inode.c:1872 [inline]
 touch_atime+0x3ef/0x650 fs/inode.c:1944
 file_accessed include/linux/fs.h:2529 [inline]
 iterate_dir+0x514/0x5f0 fs/readdir.c:70
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64+0x1e9/0x4b0 fs/readdir.c:354
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff5ad4b0ee7
RSP: 002b:00007ffe1fb1eb98 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 0000555555e22810 RCX: 00007ff5ad4b0ee7
RDX: 0000000000008000 RSI: 0000555555e22840 RDI: 0000000000000003
RBP: 0000555555e22840 R08: 0000000000000030 R09: 00007ff5ad588640
R10: 0000000000000231 R11: 0000000000000293 R12: ffffffffffffffb8
R13: 0000555555e22814 R14: 0000000000000016 R15: 00007ffe1fb1fd90
 </TASK>
task:syz-executor.1  state:S stack:22440 pid:3663  ppid:3652   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 do_wait+0x7a4/0x9d0 kernel/exit.c:1562
 kernel_wait4+0x29c/0x3e0 kernel/exit.c:1706
 __do_sys_wait4 kernel/exit.c:1734 [inline]
 __se_sys_wait4 kernel/exit.c:1730 [inline]
 __x64_sys_wait4+0x130/0x1e0 kernel/exit.c:1730
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0373289cb7
RSP: 002b:00007ffd4d098330 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 000000000000012c RCX: 00007f0373289cb7
RDX: 0000000040000000 RSI: 00007ffd4d0983bc RDI: 00000000ffffffff
RBP: 00007ffd4d0983bc R08: 0000000000000000 R09: 00007f0373388640
R10: 0000000000000000 R11: 0000000000000293 R12: 0000555556b35810
R13: 0000555556b3586b R14: 0000000000000000 R15: 00007ffd4d098420
 </TASK>
task:kworker/u5:1    state:I stack:26144 pid:3664  ppid:2      flags:0x00004000
Workqueue:  0x0 (hci4)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u5:2    state:I stack:26488 pid:3666  ppid:2      flags:0x00004000
Workqueue:  0x0 (hci1)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u5:3    state:I stack:26496 pid:3670  ppid:2      flags:0x00004000
Workqueue:  0x0 (hci3)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:syz-executor.5  state:D stack:21752 pid:3671  ppid:3655   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 io_schedule+0x83/0x100 kernel/sched/core.c:8741
 bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
 __wait_on_bit+0xb5/0x170 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0x1d4/0x250 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 do_get_write_access+0x10e/0xbd0 fs/jbd2/transaction.c:1107
 jbd2_journal_get_write_access+0x108/0x140 fs/jbd2/transaction.c:1242
 __ext4_journal_get_write_access+0x256/0x6a0 fs/ext4/ext4_jbd2.c:235
 ext4_reserve_inode_write+0x280/0x380 fs/ext4/inode.c:5807
 __ext4_mark_inode_dirty+0x139/0x6a0 fs/ext4/inode.c:5973
 ext4_dirty_inode+0xbe/0x100 fs/ext4/inode.c:6010
 __mark_inode_dirty+0x1e7/0x600 fs/fs-writeback.c:2408
 generic_update_time fs/inode.c:1859 [inline]
 inode_update_time fs/inode.c:1872 [inline]
 touch_atime+0x3ef/0x650 fs/inode.c:1944
 file_accessed include/linux/fs.h:2529 [inline]
 iterate_dir+0x514/0x5f0 fs/readdir.c:70
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64+0x1e9/0x4b0 fs/readdir.c:354
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f88656b0ee7
RSP: 002b:00007ffecd095b98 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 0000555555a90810 RCX: 00007f88656b0ee7
RDX: 0000000000008000 RSI: 0000555555a90840 RDI: 0000000000000003
RBP: 0000555555a90840 R08: 0000000000000030 R09: 00007f8865788640
R10: 0000000000000231 R11: 0000000000000293 R12: ffffffffffffffb8
R13: 0000555555a90814 R14: 0000000000000016 R15: 00007ffecd096d90
 </TASK>
task:kworker/u5:4    state:I stack:27136 pid:3672  ppid:2      flags:0x00004000
Workqueue:  0x0 (hci3)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:syz-executor.3  state:S stack:22232 pid:3673  ppid:3657   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 do_wait+0x7a4/0x9d0 kernel/exit.c:1562
 kernel_wait4+0x29c/0x3e0 kernel/exit.c:1706
 __do_sys_wait4 kernel/exit.c:1734 [inline]
 __se_sys_wait4 kernel/exit.c:1730 [inline]
 __x64_sys_wait4+0x130/0x1e0 kernel/exit.c:1730
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2b87c89cb7
RSP: 002b:00007fff9a9930c0 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000000137 RCX: 00007f2b87c89cb7
RDX: 0000000040000000 RSI: 00007fff9a99314c RDI: 00000000ffffffff
RBP: 00007fff9a99314c R08: 0000000000000000 R09: 00007f2b87d88640
R10: 0000000000000000 R11: 0000000000000293 R12: 0000555556677810
R13: 000055555667786b R14: 0000000000000000 R15: 00007fff9a9931b0
 </TASK>
task:kworker/u5:5    state:I stack:26912 pid:3676  ppid:2      flags:0x00004000
Workqueue:  0x0 (hci5)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:syz-executor.4  state:S stack:20568 pid:3677  ppid:3656   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 do_wait+0x7a4/0x9d0 kernel/exit.c:1562
 kernel_wait4+0x29c/0x3e0 kernel/exit.c:1706
 __do_sys_wait4 kernel/exit.c:1734 [inline]
 __se_sys_wait4 kernel/exit.c:1730 [inline]
 __x64_sys_wait4+0x130/0x1e0 kernel/exit.c:1730
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fea57089cb7
RSP: 002b:00007ffeffe65ca0 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000000127 RCX: 00007fea57089cb7
RDX: 0000000040000000 RSI: 00007ffeffe65d2c RDI: 00000000ffffffff
RBP: 00007ffeffe65d2c R08: 0000000000000000 R09: 00007fea57188640
R10: 0000000000000000 R11: 0000000000000293 R12: 0000555555a08810
R13: 0000555555a0886b R14: 0000000000000000 R15: 00007ffeffe65d90
 </TASK>
task:kworker/u5:6    state:I stack:25880 pid:3679  ppid:2      flags:0x00004000
Workqueue:  0x0 (hci3)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u5:7    state:I stack:25880 pid:3680  ppid:2      flags:0x00004000
Workqueue:  0x0 (hci3)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u5:8    state:I stack:27448 pid:3681  ppid:2      flags:0x00004000
Workqueue:  0x0 (hci3)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u5:9    state:I stack:27448 pid:3682  ppid:2      flags:0x00004000
Workqueue:  0x0 (hci1)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u5:10   state:I stack:26752 pid:3683  ppid:2      flags:0x00004000
Workqueue:  0x0 (hci3)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:bond0           state:I stack:30136 pid:3686  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:bond0           state:I stack:27768 pid:3688  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:bond0           state:I stack:27768 pid:3689  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:bond0           state:I stack:29208 pid:3690  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:bond0           state:I stack:29208 pid:3691  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:bond0           state:I stack:27768 pid:3692  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg0    state:I stack:30136 pid:3695  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg1    state:I stack:30136 pid:3698  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg2    state:I stack:30136 pid:3699  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg0    state:I stack:29208 pid:3701  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg1    state:I stack:29208 pid:3702  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg2    state:I stack:27480 pid:3703  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg0    state:I stack:27480 pid:3704  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg1    state:I stack:29208 pid:3705  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg2    state:I stack:27480 pid:3706  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg0    state:I stack:27480 pid:3707  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg0    state:I stack:29208 pid:3708  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg1    state:I stack:29208 pid:3709  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg1    state:I stack:30136 pid:3710  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg0    state:I stack:29208 pid:3711  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg2    state:I stack:27480 pid:3712  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg1    state:I stack:27992 pid:3713  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg2    state:I stack:29208 pid:3714  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:wg-crypt-wg2    state:I stack:27480 pid:3715  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 rescuer_thread+0xfd0/0x10e0 kernel/workqueue.c:2599
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/0:4     state:D stack:22208 pid:3716  ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 usb_kill_urb+0x1d5/0x310 drivers/usb/core/urb.c:728
 usb_hcd_flush_endpoint+0x39f/0x420 drivers/usb/core/hcd.c:1835
 usb_disable_endpoint drivers/usb/core/message.c:1303 [inline]
 usb_disable_interface+0x21e/0x310 drivers/usb/core/message.c:1349
 usb_unbind_interface+0x1bb/0x860 drivers/usb/core/driver.c:456
 device_remove drivers/base/dd.c:550 [inline]
 __device_release_driver drivers/base/dd.c:1249 [inline]
 device_release_driver_internal+0x5bc/0x8a0 drivers/base/dd.c:1275
 bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
 device_del+0x6ec/0xbe0 drivers/base/core.c:3704
 usb_disable_device+0x3dd/0x820 drivers/usb/core/message.c:1419
 usb_disconnect+0x346/0x890 drivers/usb/core/hub.c:2235
 hub_port_connect+0x296/0x2910 drivers/usb/core/hub.c:5197
 hub_port_connect_change+0x619/0xbe0 drivers/usb/core/hub.c:5497
 port_event+0xec6/0x13b0 drivers/usb/core/hub.c:5653
 hub_event+0x5c1/0xd80 drivers/usb/core/hub.c:5735
 process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/1:3     state:I stack:18560 pid:3717  ppid:2      flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/1:4     state:I stack:22304 pid:3718  ppid:2      flags:0x00004000
Workqueue:  0x0 (wg-kex-wg1)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/1:5     state:R  running task     stack:20536 pid:3719  ppid:2      flags:0x00004000
Workqueue:  0x0 (rcu_gp)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/0:5     state:D stack:23032 pid:3720  ppid:2      flags:0x00004000
Workqueue: rcu_gp wait_rcu_exp_gp
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
 synchronize_rcu_expedited_wait_once kernel/rcu/tree_exp.h:571 [inline]
 synchronize_rcu_expedited_wait kernel/rcu/tree_exp.h:622 [inline]
 rcu_exp_wait_wake kernel/rcu/tree_exp.h:688 [inline]
 rcu_exp_sel_wait_wake+0x788/0x1d80 kernel/rcu/tree_exp.h:722
 process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/0:6     state:I stack:23616 pid:3721  ppid:2      flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 </TASK>
task:kworker/1:6     state:I stack:27224 pid:3724  ppid:2      flags:0x00004000
Workqueue:  0x0 (mld)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/1:7     state:I stack:24312 pid:3725  ppid:2      flags:0x00004000
Workqueue:  0x0 (wg-crypt-wg1)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/0:7     state:I stack:25248 pid:3746  ppid:2      flags:0x00004000
Workqueue:  0x0 (wg-crypt-wg2)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:udevd           state:S stack:24944 pid:3761  ppid:2997   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 schedule_hrtimeout_range_clock+0x2b0/0x470 kernel/time/hrtimer.c:2296
 ep_poll+0x1be8/0x1e60 fs/eventpoll.c:1878
 do_epoll_wait+0x1a2/0x210 fs/eventpoll.c:2256
 __do_sys_epoll_wait fs/eventpoll.c:2268 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2263 [inline]
 __x64_sys_epoll_wait+0x2b2/0x300 fs/eventpoll.c:2263
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fde26b33e46
RSP: 002b:00007ffda5160498 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fde26b33e46
RDX: 0000000000000004 RSI: 00007ffda51604d8 RDI: 0000000000000004
RBP: 0000562be25f11a0 R08: 0000000000000007 R09: 0000562be25e5730
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000562be25f6e50
R13: 00007ffda51604d8 R14: 00000000ffffffff R15: 0000562be25cb910
 </TASK>
task:udevd           state:S stack:24200 pid:3766  ppid:2997   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 schedule_hrtimeout_range_clock+0x2b0/0x470 kernel/time/hrtimer.c:2296
 ep_poll+0x1be8/0x1e60 fs/eventpoll.c:1878
 do_epoll_wait+0x1a2/0x210 fs/eventpoll.c:2256
 __do_sys_epoll_wait fs/eventpoll.c:2268 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2263 [inline]
 __x64_sys_epoll_wait+0x2b2/0x300 fs/eventpoll.c:2263
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fde26b33e46
RSP: 002b:00007ffda5160498 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fde26b33e46
RDX: 0000000000000004 RSI: 00007ffda51604d8 RDI: 0000000000000004
RBP: 0000562be25f11a0 R08: 0000000000000007 R09: 0000562be25e5730
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000562be25d5b70
R13: 00007ffda51604d8 R14: 0000000000000008 R15: 0000562be25cb910
 </TASK>
task:kworker/1:8     state:I stack:26104 pid:3775  ppid:2      flags:0x00004000
Workqueue:  0x0 (wg-crypt-wg1)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:udevd           state:S stack:25528 pid:3820  ppid:2997   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 schedule_hrtimeout_range_clock+0x2b0/0x470 kernel/time/hrtimer.c:2296
 ep_poll+0x1be8/0x1e60 fs/eventpoll.c:1878
 do_epoll_wait+0x1a2/0x210 fs/eventpoll.c:2256
 __do_sys_epoll_wait fs/eventpoll.c:2268 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2263 [inline]
 __x64_sys_epoll_wait+0x2b2/0x300 fs/eventpoll.c:2263
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fde26b33e46
RSP: 002b:00007ffda5160498 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fde26b33e46
RDX: 0000000000000004 RSI: 00007ffda51604d8 RDI: 0000000000000004
RBP: 0000562be25f1dd0 R08: 0000000000000007 R09: 0000562be25e5730
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000562be2600340
R13: 00007ffda51604d8 R14: 00000000ffffffff R15: 0000562be25cb910
 </TASK>
task:udevd           state:R  running task     stack:26296 pid:3822  ppid:2997   flags:0x00004008
Call Trace:
 <IRQ>
 sched_show_task+0x49b/0x640 kernel/sched/core.c:8897
 show_state_filter+0x188/0x270 kernel/sched/core.c:8942
 kbd_keycode drivers/tty/vt/keyboard.c:1524 [inline]
 kbd_event+0x2a76/0x3ce0 drivers/tty/vt/keyboard.c:1543
 input_to_handler drivers/input/input.c:130 [inline]
 input_pass_values+0xa2d/0x12b0 drivers/input/input.c:159
 input_event_dispose+0x3d2/0x620 drivers/input/input.c:385
 input_handle_event+0x3f2/0xa80 drivers/input/input.c:402
 input_event+0x9c/0xc0 drivers/input/input.c:431
 hidinput_hid_event+0x130e/0x1bd0 drivers/hid/hid-input.c:1638
 hid_process_event+0x458/0x5a0 drivers/hid/hid-core.c:1527
 hid_input_array_field+0x297/0x620 drivers/hid/hid-core.c:1631
 hid_process_report drivers/hid/hid-core.c:1681 [inline]
 hid_report_raw_event+0xf9e/0x18b0 drivers/hid/hid-core.c:1998
 hid_input_report+0x408/0x4f0 drivers/hid/hid-core.c:2066
 hid_irq_in+0x459/0x690 drivers/hid/usbhid/hid-core.c:284
 __usb_hcd_giveback_urb+0x369/0x530 drivers/usb/core/hcd.c:1671
 dummy_timer+0x86b/0x3110 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0xf5/0x210 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers+0x76a/0x980 kernel/time/timer.c:1790
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803
 __do_softirq+0x277/0x75b kernel/softirq.c:571
 __irq_exit_rcu+0xec/0x170 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:30 [inline]
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:52 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:178 [inline]
RIP: 0010:unwind_next_frame+0x57f/0x24c0 arch/x86/kernel/unwind_orc.c:448
Code: f8 48 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 1c 47 48 89 d8 48 c1 e8 03 42 0f b6 04 08 84 c0 75 27 48 63 03 <48> 01 d8 48 8d 4b 04 4c 39 e0 4c 0f 46 f9 48 8d 43 fc 4c 0f 47 e8
RSP: 0018:ffffc900048bf2a0 EFLAGS: 00000246
RAX: fffffffff2d904dc RBX: ffffffff8ea11bd8 RCX: 0000000000000000
RDX: ffffffff8f18ebba RSI: ffffffff817a21dd RDI: ffffffff813d6dc3
RBP: ffffffff8ea11bd8 R08: 0000000000000001 R09: dffffc0000000000
R10: fffff52000917e7c R11: 1ffff92000917e7a R12: ffffffff817a21dc
R13: ffffffff8ea11bd8 R14: ffffffff8ea11bd8 R15: ffffffff8ea11bd8
 arch_stack_walk+0x112/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x12d/0x1f0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4c/0x70 mm/kasan/common.c:52
 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:325
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slab.h:737 [inline]
 slab_alloc_node mm/slub.c:3398 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x1cc/0x300 mm/slub.c:3422
 kmem_cache_zalloc include/linux/slab.h:679 [inline]
 seq_open+0x5e/0x130 fs/seq_file.c:63
 kernfs_fop_open+0x606/0xc80
 do_dentry_open+0x85f/0x11b0 fs/open.c:882
 do_open fs/namei.c:3557 [inline]
 path_openat+0x260e/0x2e00 fs/namei.c:3714
 do_filp_open+0x275/0x500 fs/namei.c:3741
 do_sys_openat2+0x13b/0x500 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1337
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fde26b25697
Code: 25 00 00 41 00 3d 00 00 41 00 74 37 64 8b 04 25 18 00 00 00 85 c0 75 5b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 85 00 00 00 48 83 c4 68 5d 41 5c c3 0f 1f
RSP: 002b:00007ffda515a140 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000562be25f1dd0 RCX: 00007fde26b25697
RDX: 0000000000080000 RSI: 00007ffda515a258 RDI: 00000000ffffff9c
RBP: 00007ffda515a258 R08: 0000562be25f8ae9 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
R13: 0000562be25f1ec0 R14: 00007ffda515a258 R15: 0000562be1d19a7c
 </TASK>
task:kworker/u4:6    state:I stack:26080 pid:3838  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:udevd           state:D stack:25288 pid:3969  ppid:2997   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 synchronize_rcu_expedited+0x6d1/0x890 kernel/rcu/tree_exp.h:961
 synchronize_rcu+0x113/0x3f0 kernel/rcu/tree.c:3510
 evdev_detach_client drivers/input/evdev.c:386 [inline]
 evdev_release+0x294/0x890 drivers/input/evdev.c:449
 __fput+0x3ba/0x880 fs/file_table.c:320
 task_work_run+0x243/0x300 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fde26b25fc3
RSP: 002b:00007ffda515b138 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007fde26eff6a8 RCX: 00007fde26b25fc3
RDX: 00007ffda515b1a0 RSI: 0000000080184540 RDI: 0000000000000008
RBP: 0000562be25f11a0 R08: 0000562be25d95b0 R09: 00007fde26bf5a60
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000016
R13: 00007ffda515b1f0 R14: 0000000000000004 R15: ffffffffffffffff
 </TASK>
task:kworker/u4:7    state:I stack:25784 pid:4230  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy9)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:8    state:I stack:25784 pid:4239  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy8)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:9    state:I stack:26712 pid:4241  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy8)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:10   state:I stack:27544 pid:4243  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:11   state:I stack:26712 pid:4245  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy8)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:12   state:I stack:25560 pid:4247  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy7)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:13   state:I stack:26712 pid:4253  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy6)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:14   state:I stack:26712 pid:4258  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:15   state:I stack:25408 pid:4259  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy3)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:16   state:I stack:26712 pid:4262  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:17   state:I stack:21472 pid:4266  ppid:2      flags:0x00004000
Workqueue:  0x0 (bat_events)
Call Trace:
 <TASK>
 </TASK>
task:kworker/u4:18   state:I stack:26712 pid:4269  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:udevd           state:S stack:25768 pid:4270  ppid:2997   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 schedule_hrtimeout_range_clock+0x2b0/0x470 kernel/time/hrtimer.c:2296
 ep_poll+0x1be8/0x1e60 fs/eventpoll.c:1878
 do_epoll_wait+0x1a2/0x210 fs/eventpoll.c:2256
 __do_sys_epoll_wait fs/eventpoll.c:2268 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2263 [inline]
 __x64_sys_epoll_wait+0x2b2/0x300 fs/eventpoll.c:2263
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fde26b33e46
RSP: 002b:00007ffda5160498 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fde26b33e46
RDX: 0000000000000004 RSI: 00007ffda51604d8 RDI: 0000000000000004
RBP: 0000562be2604020 R08: 0000000000000007 R09: 0000562be25ef290
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000562be25f5e60
R13: 00007ffda51604d8 R14: 00000000ffffffff R15: 0000562be25cb910
 </TASK>
task:kworker/u4:19   state:I stack:26712 pid:4272  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:20   state:I stack:26712 pid:4276  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy14)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:21   state:I stack:26712 pid:4279  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy8)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:22   state:I stack:26712 pid:4283  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:23   state:I stack:26712 pid:4285  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:24   state:I stack:26712 pid:4287  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:25   state:I stack:26712 pid:4291  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy8)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:26   state:I stack:24736 pid:4293  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:27   state:I stack:26176 pid:4295  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:28   state:I stack:22912 pid:4297  ppid:2      flags:0x00004000
Workqueue:  0x0 (bat_events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:29   state:I stack:26712 pid:4298  ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:30   state:I stack:25560 pid:4301  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy6)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:31   state:I stack:25784 pid:4303  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy13)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:32   state:I stack:25752 pid:4330  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy14)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 worker_thread+0xfbf/0x1330 kernel/workqueue.c:2457
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
task:kworker/u4:33   state:I stack:26712 pid:4334  ppid:2      flags:0x00004000
Workqueue:  0x0 (phy6)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/11/30 15:27 upstream 01f856ae6d0c 4c2a66e8 .config console log report info ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in kernfs_fop_open
* Struck through repros no longer work on HEAD.