rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
1-...D } 2642 jiffies s: 100549 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 4109 Comm: syz-executor Not tainted 6.12.0-rc3-syzkaller-00032-gf47333c690e4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:413
Code: 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 1c 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d c3 cc cc cc cc e8 b1 ef 0d ff eb a0 e8 3a f0 0d
RSP: 0018:ffffc900001b8398 EFLAGS: 00000002
RAX: 0000000000000020 RBX: 00000000000003f8 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: ffffffff82a06b75 RDI: ffffffff93635660
RBP: ffffffff93635620 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000020 R14: ffffffff82a06b10 R15: 0000000000000000
FS: 000055557a1ad500(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c15ea4ae70 CR3: 00000001206b8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
serial_out drivers/tty/serial/8250/8250.h:142 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3322 [inline]
serial8250_console_write+0xf9e/0x17c0 drivers/tty/serial/8250/8250_port.c:3393
console_emit_next_record kernel/printk/printk.c:3092 [inline]
console_flush_all+0x800/0xc60 kernel/printk/printk.c:3180
__console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
console_unlock+0xd9/0x210 kernel/printk/printk.c:3279
vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
_printk+0xc8/0x100 kernel/printk/printk.c:2432
printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
show_trace_log_lvl+0x21f/0x3d0 arch/x86/kernel/dumpstack.c:285
sched_show_task kernel/sched/core.c:7589 [inline]
sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7564
show_state_filter+0xee/0x320 kernel/sched/core.c:7634
k_spec drivers/tty/vt/keyboard.c:667 [inline]
k_spec+0xed/0x150 drivers/tty/vt/keyboard.c:656
kbd_keycode drivers/tty/vt/keyboard.c:1522 [inline]
kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1541
input_handler_events_default+0x116/0x1b0 drivers/input/input.c:2549
input_pass_values+0x777/0x8e0 drivers/input/input.c:126
input_event_dispose drivers/input/input.c:341 [inline]
input_handle_event+0xf0b/0x14d0 drivers/input/input.c:369
input_repeat_key+0x251/0x340 drivers/input/input.c:2316
call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1794
expire_timers kernel/time/timer.c:1845 [inline]
__run_timers+0x6e8/0x930 kernel/time/timer.c:2419
__run_timer_base kernel/time/timer.c:2430 [inline]
__run_timer_base kernel/time/timer.c:2423 [inline]
run_timer_base+0x111/0x190 kernel/time/timer.c:2439
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2449
handle_softirqs+0x206/0x8d0 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:637 [inline]
irq_exit_rcu+0xac/0x110 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1037
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire.part.0+0x20/0x380 kernel/locking/lockdep.c:5790
Code: 90 90 90 90 90 90 90 90 90 90 41 57 4d 89 cf 41 56 41 89 f6 41 55 49 89 fd 41 54 41 89 d4 48 ba 00 00 00 00 00 fc ff df 55 53 <48> 81 ec a8 00 00 00 48 c7 44 24 08 b3 8a b5 41 48 8d 5c 24 08 48
RSP: 0018:ffffc9000832f9a0 EFLAGS: 00000296
RAX: 0000000000000001 RBX: 0000000000000080 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8903e400
RBP: ffff888115b80000 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff8a5646cf R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff8903e400 R14: 0000000000000000 R15: 0000000000000000
__fs_reclaim_acquire mm/page_alloc.c:3834 [inline]
fs_reclaim_acquire+0x102/0x150 mm/page_alloc.c:3848
might_alloc include/linux/sched/mm.h:318 [inline]
prepare_alloc_pages.constprop.0+0x152/0x4f0 mm/page_alloc.c:4493
__alloc_pages_noprof+0x18e/0x2270 mm/page_alloc.c:4722
alloc_pages_mpol_noprof+0xeb/0x400 mm/mempolicy.c:2265
vm_area_alloc_pages mm/vmalloc.c:3568 [inline]
__vmalloc_area_node mm/vmalloc.c:3646 [inline]
__vmalloc_node_range_noprof+0x724/0x15a0 mm/vmalloc.c:3828
vmalloc_user_noprof+0x6b/0x90 mm/vmalloc.c:3982
kcov_ioctl+0x4c/0x730 kernel/kcov.c:716
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl fs/ioctl.c:893 [inline]
__x64_sys_ioctl+0x18f/0x220 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f123ed3dbfb
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007ffc028cb8d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000040000 RCX: 00007f123ed3dbfb
RDX: 0000000000040000 RSI: ffffffff80086301 RDI: 00000000000000dc
RBP: 00007f123eef6378 R08: 00000000000000da R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241
do_poll fs/select.c:964 [inline]
do_sys_poll+0xad5/0xde0 fs/select.c:1015
__do_sys_ppoll fs/select.c:1121 [inline]
__se_sys_ppoll fs/select.c:1101 [inline]
__x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1101
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbf6cbddad5
RSP: 002b:00007ffe73a7ab70 EFLAGS: 00000246
ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000561b788ebee0 RCX: 00007fbf6cbddad5
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000561b788f4fe0
RBP: 00007ffe73a7aec0 R08: 0000000000000008 R09: 0000561b4fa903d0
R10: 00007ffe73a7aec0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000561b4fa90610 R14: 0000000000000000 R15: 0000000000000000
task:dhcpcd state:S
stack:27520 pid:2590 tgid:2590 ppid:2587 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241
do_poll fs/select.c:964 [inline]
do_sys_poll+0xad5/0xde0 fs/select.c:1015
__do_sys_ppoll fs/select.c:1121 [inline]
__se_sys_ppoll fs/select.c:1101 [inline]
__x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1101
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbf6cbddad5
RSP: 002b:00007ffe73a7ab70 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000561b788ebee0 RCX: 00007fbf6cbddad5
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000561b788f4fe0
RBP: 00007ffe73a7aec0 R08: 0000000000000008 R09: 0000561b4fa903d0
R10: 00007ffe73a7aec0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000561b4fa90610 R14: 0000000000000000 R15: 0000000000000000
task:sshd state:S stack:27584 pid:2606 tgid:2606 ppid:1 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241
do_poll fs/select.c:964 [inline]
do_sys_poll+0xad5/0xde0 fs/select.c:1015
__do_sys_ppoll fs/select.c:1121 [inline]
__se_sys_ppoll fs/select.c:1101 [inline]
__x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1101
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f470a309ad5
RSP: 002b:00007fff71627f50 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000564385c77440 RCX: 00007f470a309ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000564385c77920
RBP: 0000000000000064 R08: 0000000000000008 R09: 0000000000000000
R10: 00007fff71628108 R11: 0000000000000246 R12: 0000564385c77920
R13: 00007fff71628108 R14: 0000000000000002 R15: 0000564385c7790c
task:getty state:S stack:25120 pid:2608 tgid:2608 ppid:1 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2591
wait_woken+0x175/0x1c0 kernel/sched/wait.c:423
n_tty_read+0x10fb/0x1480 drivers/tty/n_tty.c:2277
iterate_tty_read drivers/tty/tty_io.c:856 [inline]
tty_read+0x30e/0x5b0 drivers/tty/tty_io.c:931
new_sync_read fs/read_write.c:488 [inline]
vfs_read+0x86e/0xbd0 fs/read_write.c:569
ksys_read+0x12f/0x260 fs/read_write.c:712
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1eaf3bbb6a
RSP: 002b:00007ffc652226f8 EFLAGS: 00000246
ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055ffdf97e2c0 RCX: 00007f1eaf3bbb6a
RDX: 0000000000000001 RSI: 00007ffc65222710 RDI: 0000000000000000
RBP: 000055ffdf97e320 R08: 0000000000000000 R09: d8e4a5b90542f435
R10: 0000000000000010 R11: 0000000000000246 R12: 000055ffdf97e35c
R13: 00007ffc65222710 R14: 0000000000000000 R15: 000055ffdf97e35c
task:dhcpcd state:S
stack:26432 pid:2610 tgid:2610 ppid:2588 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241
do_poll fs/select.c:964 [inline]
do_sys_poll+0xad5/0xde0 fs/select.c:1015
__do_sys_ppoll fs/select.c:1121 [inline]
__se_sys_ppoll fs/select.c:1101 [inline]
__x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1101
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbf6cbddad5
RSP: 002b:00007ffe73a7ab70 EFLAGS: 00000246
ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000561b788ebee0 RCX: 00007fbf6cbddad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000561b788f6d50
RBP: 00007ffe73a7aec0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffe73a7aec0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000561b4fa90610 R14: 0000000000000000 R15: 0000000000000000
task:sshd state:S
stack:25408 pid:2641 tgid:2641 ppid:2606 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_hrtimeout_range_clock+0x272/0x3b0 kernel/time/hrtimer.c:2281
poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241
do_poll fs/select.c:964 [inline]
do_sys_poll+0xad5/0xde0 fs/select.c:1015
__do_sys_ppoll fs/select.c:1121 [inline]
__se_sys_ppoll fs/select.c:1101 [inline]
__x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1101
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1be39f2ad5
RSP: 002b:00007ffdcd5112c0 EFLAGS: 00000246
ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00000000000668a0 RCX: 00007f1be39f2ad5
RDX: 00007ffdcd5112e0 RSI: 0000000000000004 RDI: 00005607aa3d07e0
RBP: 00005607aa3cf3b0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffdcd5113c8 R11: 0000000000000246 R12: 0000560771f05aa4
R13: 0000000000000001 R14: 0000560771f063e8 R15: 00007ffdcd511348
task:syz-executor state:S stack:23808 pid:2643 tgid:2643 ppid:2641 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_hrtimeout_range_clock+0x272/0x3b0 kernel/time/hrtimer.c:2281
poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:241
do_select+0x12ec/0x17b0 fs/select.c:604
core_sys_select+0x459/0xb80 fs/select.c:678
do_pselect.constprop.0+0x1a0/0x1f0 fs/select.c:760
__do_sys_pselect6 fs/select.c:803 [inline]
__se_sys_pselect6 fs/select.c:794 [inline]
__x64_sys_pselect6+0x183/0x240 fs/select.c:794
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f37d58eddbc
RSP: 002b:00007fffb23fba30 EFLAGS: 00000202
ORIG_RAX: 000000000000010e
RAX: ffffffffffffffda RBX: 00007fffb23fbb60 RCX: 00007f37d58eddbc
RDX: 0000000000000000 RSI: 00007fffb23fbb60 RDI: 0000000000000026
RBP: 00007fffb23fbf90 R08: 00007fffb23fba60 R09: 00007fffb23fba70
R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffb23fbde0
R13: 0000000000000000 R14: 585858582e7a7973 R15: 00007fffb23fbbf0
task:kworker/0:5 state:R running task stack:21232 pid:5017 tgid:5017 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2615
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3e1/0x600 kernel/sched/completion.c:116
usb_start_wait_urb+0x148/0x4c0 drivers/usb/core/message.c:64
usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
usb_control_msg+0x327/0x4b0 drivers/usb/core/message.c:154
_usbctrl_vendorreq_sync+0xc6/0x1f0 drivers/net/wireless/realtek/rtlwifi/usb.c:42
_usb_read_sync+0x11d/0x190 drivers/net/wireless/realtek/rtlwifi/usb.c:75
rtl_read_dword drivers/net/wireless/realtek/rtlwifi/wifi.h:2911 [inline]
read_efuse_byte+0x612/0x910 drivers/net/wireless/realtek/rtlwifi/efuse.c:182
read_efuse+0x9a7/0xd60 drivers/net/wireless/realtek/rtlwifi/efuse.c:282
efuse_read_all_map drivers/net/wireless/realtek/rtlwifi/efuse.c:648 [inline]
rtl_efuse_shadow_map_update+0x1f8/0x2c0 drivers/net/wireless/realtek/rtlwifi/efuse.c:494
rtl_get_hwinfo+0xdb/0x880 drivers/net/wireless/realtek/rtlwifi/efuse.c:1224
_rtl92cu_read_adapter_info drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c:334 [inline]
rtl92cu_read_eeprom_info+0x2bc/0x2730 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c:411
rtl_usb_probe+0x915/0x24d0 drivers/net/wireless/realtek/rtlwifi/usb.c:1011
usb_probe_interface+0x309/0x9d0 drivers/usb/core/driver.c:399
call_driver_probe drivers/base/dd.c:579 [inline]
really_probe+0x23e/0xa90 drivers/base/dd.c:658
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:459
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:534
device_add+0x114b/0x1a70 drivers/base/core.c:3675
usb_set_configuration+0x10cb/0x1c50 drivers/usb/core/message.c:2210
usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:254
usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:294
call_driver_probe drivers/base/dd.c:579 [inline]
really_probe+0x23e/0xa90 drivers/base/dd.c:658
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:459
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:534
device_add+0x114b/0x1a70 drivers/base/core.c:3675
usb_new_device+0xd90/0x1a10 drivers/usb/core/hub.c:2651
hub_port_connect drivers/usb/core/hub.c:5521 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x2e58/0x4f40 drivers/usb/core/hub.c:5903
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/0:3 state:I
stack:21440 pid:7856 tgid:7856 ppid:2 flags:0x00004000
Workqueue: 0x0
(events)
Call Trace:
task:kworker/1:0 state:R
running task
stack:21968 pid:8044 tgid:8044 ppid:2 flags:0x00004000
Workqueue: events dvb_usb_read_remote_control
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6861
__cond_resched+0x1b/0x30 kernel/sched/core.c:7199
_cond_resched include/linux/sched.h:2031 [inline]
process_one_work+0xbc5/0x1ba0 kernel/workqueue.c:3262
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/1:1 state:I stack:21280 pid:10378 tgid:10378 ppid:2 flags:0x00004000
Workqueue: 0x0
(events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/0:4 state:I stack:21888 pid:10539 tgid:10539 ppid:2 flags:0x00004000
Workqueue: 0x0
(events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/1:8 state:I
stack:22080 pid:13634 tgid:13634 ppid:2 flags:0x00004000
Workqueue: 0x0
(events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/0:1 state:I
stack:21456 pid:19607 tgid:19607 ppid:2 flags:0x00004000
Workqueue: 0x0
(events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/u8:2 state:D
stack:24000 pid:19962 tgid:19962 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
synchronize_rcu_expedited+0x392/0x450 kernel/rcu/tree_exp.h:991
__qdisc_destroy+0x11a/0x4a0 net/sched/sch_generic.c:1079
qdisc_put+0xab/0xe0 net/sched/sch_generic.c:1105
dev_shutdown+0x1c5/0x430 net/sched/sch_generic.c:1493
unregister_netdevice_many_notify+0x632/0x1e50 net/core/dev.c:11392
unregister_netdevice_many net/core/dev.c:11465 [inline]
default_device_exit_batch+0x861/0xae0 net/core/dev.c:11948
ops_exit_list+0x128/0x180 net/core/net_namespace.c:178
cleanup_net+0x5b7/0xb40 net/core/net_namespace.c:626
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/1:5 state:I stack:22384 pid:21120 tgid:21120 ppid:2 flags:0x00004000
Workqueue: 0x0
(events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/1:3 state:I stack:22336 pid:23850 tgid:23850 ppid:2 flags:0x00004000
Workqueue: 0x0 (events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/1:7 state:R running task stack:21104 pid:23871 tgid:23871 ppid:2 flags:0x00004000
Workqueue: 0x0 (events_power_efficient)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/0:6 state:I
stack:22768 pid:25950 tgid:25950 ppid:2 flags:0x00004000
Workqueue: 0x0 (events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/u8:3 state:I
stack:26048 pid:26411 tgid:26411 ppid:2 flags:0x00004000
Workqueue: 0x0 (events_unbound)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/u8:4 state:D
stack:23920 pid:26934 tgid:26934 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn
(flush-8:0)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
io_schedule+0xbf/0x130 kernel/sched/core.c:7559
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:101 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
ext4_mb_mark_context+0x1dc/0xdb0 fs/ext4/mballoc.c:4016
ext4_mb_mark_diskspace_used+0x467/0x8c0 fs/ext4/mballoc.c:4133
ext4_mb_new_blocks+0xa33/0x4e80 fs/ext4/mballoc.c:6235
ext4_ext_map_blocks+0x1bca/0x5a30 fs/ext4/extents.c:4379
ext4_map_create_blocks fs/ext4/inode.c:516 [inline]
ext4_map_blocks+0x457/0x1340 fs/ext4/inode.c:702
mpage_map_one_extent fs/ext4/inode.c:2208 [inline]
mpage_map_and_submit_extent fs/ext4/inode.c:2261 [inline]
ext4_do_writepages+0x1ba7/0x3440 fs/ext4/inode.c:2724
ext4_writepages+0x303/0x730 fs/ext4/inode.c:2813
do_writepages+0x1a3/0x7f0 mm/page-writeback.c:2683
__writeback_single_inode+0x166/0xfa0 fs/fs-writeback.c:1658
writeback_sb_inodes+0x603/0xfa0 fs/fs-writeback.c:1954
__writeback_inodes_wb+0xff/0x2e0 fs/fs-writeback.c:2025
wb_writeback+0x721/0xb50 fs/fs-writeback.c:2136
wb_check_old_data_flush fs/fs-writeback.c:2240 [inline]
wb_do_writeback fs/fs-writeback.c:2293 [inline]
wb_workfn+0x8c3/0xbc0 fs/fs-writeback.c:2321
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:syz-executor state:S stack:23840 pid:27720 tgid:27720 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
do_wait+0x1dd/0x570 kernel/exit.c:1697
kernel_wait4+0x16c/0x280 kernel/exit.c:1851
zap_pid_ns_processes+0x2e3/0x6a0 kernel/pid_namespace.c:222
find_child_reaper kernel/exit.c:612 [inline]
forget_original_parent kernel/exit.c:701 [inline]
exit_notify kernel/exit.c:738 [inline]
do_exit+0x2530/0x2ce0 kernel/exit.c:959
do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
get_signal+0x25fb/0x2770 kernel/signal.c:2917
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa9650f4213
RSP: 002b:00007fff320fd6d8 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 000000000000054d RCX: 00007fa9650f4213
RDX: 0000000040000000 RSI: 00007fff320fd70c RDI: 00000000ffffffff
RBP: 00007fff320fd70c R08: 000000000008f52e R09: 00007fa965df6080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000033d0ee R15: 00007fff320fd760
task:kworker/0:7 state:I
stack:22656 pid:29904 tgid:29904 ppid:2 flags:0x00004000
Workqueue: 0x0
(events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/0:8 state:I stack:22352 pid:31006 tgid:31006 ppid:2 flags:0x00004000
Workqueue: 0x0
(events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/1:2 state:I stack:28880 pid:31206 tgid:31206 ppid:2 flags:0x00004000
Workqueue: 0x0
(events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:syz-executor state:S stack:24064 pid:31417 tgid:31417 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
do_wait+0x1dd/0x570 kernel/exit.c:1697
kernel_wait4+0x16c/0x280 kernel/exit.c:1851
zap_pid_ns_processes+0x2e3/0x6a0 kernel/pid_namespace.c:222
find_child_reaper kernel/exit.c:612 [inline]
forget_original_parent kernel/exit.c:701 [inline]
exit_notify kernel/exit.c:738 [inline]
do_exit+0x2530/0x2ce0 kernel/exit.c:959
do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
get_signal+0x25fb/0x2770 kernel/signal.c:2917
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f71c5a24213
RSP: 002b:00007fff0669ba38 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 00000000000002c4 RCX: 00007f71c5a24213
RDX: 0000000040000000 RSI: 00007fff0669ba6c RDI: 00000000ffffffff
RBP: 00007fff0669ba6c R08: 000000000008f668 R09: 00007f71c6720080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000033d839 R15: 00007fff0669bac0
task:kworker/0:9 state:I stack:22416 pid:1318 tgid:1318 ppid:2 flags:0x00004000
Workqueue: 0x0
(events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682