syzbot


INFO: rcu detected stall in ret_from_fork_asm (2)

Status: auto-obsoleted due to no activity on 2025/01/27 14:00
Subsystems: kernel
[Documentation on labels]
First crash: 92d, last: 92d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in ret_from_fork_asm kernel 1 190d 190d 0/28 auto-obsoleted due to no activity on 2024/10/21 11:51

Sample crash report:
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 1-...D } 2634 jiffies s: 18449 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2854 Comm: klogd Not tainted 6.12.0-rc4-syzkaller-00059-gc67e9601e29a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:185 [inline]
RIP: 0010:write_comp_data+0x3c/0x90 kernel/kcov.c:246
Code: 8b 05 b0 d0 ad 7e a9 00 01 ff 00 74 1d f6 c4 01 74 67 a9 00 00 0f 00 75 60 a9 00 00 f0 00 75 59 8b 82 54 15 00 00 85 c0 74 4f <8b> 82 30 15 00 00 83 f8 03 75 44 48 8b 82 38 15 00 00 8b 92 34 15
RSP: 0000:ffffc9000189ebb0 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff86e6ae49
RDX: ffff888116593a80 RSI: 0000000000000020 RDI: 0000000000000001
RBP: ffffffff8810c000 R08: 0000000000000001 R09: 0000000000000020
R10: 0000000000000035 R11: 0000000000315188 R12: 0000000000000035
R13: 0000000000000001 R14: 0000000000000005 R15: 0000000000000035
FS:  00007f38a9b80380(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff09316df8 CR3: 00000001164b4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:351
 format_decode+0x279/0xba0 lib/vsprintf.c:2554
 vsnprintf+0x13d/0x1880 lib/vsprintf.c:2755
 sprintf+0xcd/0x110 lib/vsprintf.c:3007
 print_time kernel/printk/printk.c:1362 [inline]
 info_print_prefix+0x25c/0x350 kernel/printk/printk.c:1388
 record_print_text+0x141/0x400 kernel/printk/printk.c:1437
 printk_get_next_message+0x2a6/0x670 kernel/printk/printk.c:2978
 console_emit_next_record kernel/printk/printk.c:3046 [inline]
 console_flush_all+0x6ec/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:7604 [inline]
 sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7579
 show_state_filter+0xee/0x320 kernel/sched/core.c:7649
 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_event drivers/input/input.c:398 [inline]
 input_event+0x83/0xa0 drivers/input/input.c:390
 input_sync include/linux/input.h:451 [inline]
 hidinput_report_event+0xb2/0x100 drivers/hid/hid-input.c:1736
 hid_report_raw_event+0x274/0x11c0 drivers/hid/hid-core.c:2047
 __hid_input_report.constprop.0+0x341/0x440 drivers/hid/hid-core.c:2110
 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:285
 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
 dummy_timer+0x17f0/0x3930 drivers/usb/gadget/udc/dummy_hcd.c:1993
 __run_hrtimer kernel/time/hrtimer.c:1691 [inline]
 __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1755
 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1772
 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:1049 [inline]
 sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1049
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0033:0x7f38a9c77803
Code: ff 4d 01 ec 4d 39 e7 7c 0d 48 8b 43 20 4c 01 e0 48 89 43 28 eb 13 31 d2 4c 89 e6 48 89 df e8 ff fb ff ff 85 c0 74 e2 eb 8f 5a <4c> 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 8b 05 a8 76 13 00 48
RSP: 002b:00007ffdad77b618 EFLAGS: 00000202
RAX: 00000000fbad8000 RBX: 000055e4136502c0 RCX: 000055e41365a5e0
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 000055e4136502c0
RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000002
R10: 0000000000000008 R11: 0000000000000003 R12: 0000000000000013
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
 </TASK>
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
task:kworker/R-zd121 state:I stack:30048 pid:413   tgid:413   ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:kworker/R-uas   state:I
 stack:30624 pid:491   tgid:491   ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:kworker/R-usbip state:I
 stack:30048 pid:1055  tgid:1055  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:pvrusb2-context state:S
 stack:28560 pid:1301  tgid:1301  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 pvr2_context_thread_func+0x631/0x970 drivers/media/usb/pvrusb2/pvrusb2-context.c:160
 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>
task:kworker/R-kvub3 state:I
 stack:30048 pid:1338  tgid:1338  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:kworker/R-kvub3 state:I
 stack:30048 pid:1339  tgid:1339  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:kworker/R-kvub3 state:I
 stack:30048 pid:1340  tgid:1340  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:kworker/R-kmems state:I stack:30048 pid:1344  tgid:1344  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:kworker/R-elous state:I stack:29024 pid:1377  tgid:1377  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:kworker/R-mld   state:I stack:30048 pid:1563  tgid:1563  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:kworker/0:1H    state:I stack:28256 pid:1564  tgid:1564  ppid:2      flags:0x00004000
Workqueue:  0x0 (kblockd)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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>
task:kworker/R-ipv6_ state:I
 stack:30048 pid:1565  tgid:1565  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:kworker/u8:11   state:I
 stack:23600 pid:1720  tgid:1720  ppid:2      flags:0x00004000
Workqueue:  0x0
 (events_unbound)

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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>
task:jbd2/sda1-8     state:D
 stack:25600 pid:2826  tgid:2826  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 io_schedule+0xbf/0x130 kernel/sched/core.c:7574
 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]
 __wait_on_buffer+0x64/0x70 fs/buffer.c:123
 wait_on_buffer include/linux/buffer_head.h:414 [inline]
 jbd2_journal_commit_transaction+0x3864/0x65b0 fs/jbd2/commit.c:814
 kjournald2+0x1f8/0x760 fs/jbd2/journal.c:201
 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>
task:kworker/R-ext4- state:I
 stack:30048 pid:2827  tgid:2827  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 rescuer_thread+0x946/0xe20 kernel/workqueue.c:3541
 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>
task:kworker/1:2     state:R
  running task     stack:21392 pid:2828  tgid:2828  ppid:2      flags:0x00004000
Workqueue: events dvb_usb_read_remote_control

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6869
 __cond_resched+0x1b/0x30 kernel/sched/core.c:7214
 _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>
task:syslogd         state:S
 stack:23808 pid:2847  tgid:2847  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2591
 __skb_wait_for_more_packets+0x36c/0x5e0 net/core/datagram.c:121
 __unix_dgram_recvmsg+0x243/0xdd0 net/unix/af_unix.c:2448
 unix_dgram_recvmsg+0xd0/0x110 net/unix/af_unix.c:2537
 sock_recvmsg_nosec net/socket.c:1051 [inline]
 sock_recvmsg+0x1f6/0x250 net/socket.c:1073
 sock_read_iter+0x2bb/0x3b0 net/socket.c:1143
 new_sync_read fs/read_write.c:488 [inline]
 vfs_read+0xa3b/0xbd0 fs/read_write.c:569
 ksys_read+0x1fa/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: 0033:0x7f9083571b6a
RSP: 002b:00007fffff87bdf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9083571b6a
RDX: 00000000000000ff RSI: 00005591e6f10300 RDI: 0000000000000000
RBP: 00005591e6f102c0 R08: 0000000000000001 R09: 0000000000000000
R10: 00007f90837103a3 R11: 0000000000000246 R12: 00005591e6f1034f
R13: 00005591e6f10300 R14: 0000000000000000 R15: 00007f9083754a80
 </TASK>
task:acpid           state:S stack:26032 pid:2850  tgid:2850  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
 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: 0033:0x7f673ae63591
RSP: 002b:00007ffe12fbbe20 EFLAGS: 00000246 ORIG_RAX: 000000000000010e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f673ae63591
RDX: 0000000000000000 RSI: 00007ffe12fbbf18 RDI: 000000000000000d
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000055ec7a575178 R14: 0000000000000000 R15: 000000000000000c
 </TASK>
task:klogd           state:R  running task     stack:24064 pid:2854  tgid:2854  ppid:1      flags:0x00000008
Call Trace:
 <TASK>
 sched_show_task kernel/sched/core.c:7604 [inline]
 sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7579
 show_state_filter+0xee/0x320 kernel/sched/core.c:7649
 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_event drivers/input/input.c:398 [inline]
 input_event+0x83/0xa0 drivers/input/input.c:390
 input_sync include/linux/input.h:451 [inline]
 hidinput_report_event+0xb2/0x100 drivers/hid/hid-input.c:1736
 hid_report_raw_event+0x274/0x11c0 drivers/hid/hid-core.c:2047
 __hid_input_report.constprop.0+0x341/0x440 drivers/hid/hid-core.c:2110
 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:285
 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
 dummy_timer+0x17f0/0x3930 drivers/usb/gadget/udc/dummy_hcd.c:1993
 __run_hrtimer kernel/time/hrtimer.c:1691 [inline]
 __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1755
 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1772
 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:1049 [inline]
 sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1049
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0033:0x7f38a9c77803
Code: ff 4d 01 ec 4d 39 e7 7c 0d 48 8b 43 20 4c 01 e0 48 89 43 28 eb 13 31 d2 4c 89 e6 48 89 df e8 ff fb ff ff 85 c0 74 e2 eb 8f 5a <4c> 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 8b 05 a8 76 13 00 48
RSP: 002b:00007ffdad77b618 EFLAGS: 00000202
RAX: 00000000fbad8000 RBX: 000055e4136502c0 RCX: 000055e41365a5e0
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 000055e4136502c0
RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000002
R10: 0000000000000008 R11: 0000000000000003 R12: 0000000000000013
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
 </TASK>
task:udevd           state:S stack:23504 pid:2865  tgid:2865  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
 ep_poll fs/eventpoll.c:2062 [inline]
 do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
 __do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
 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: 0033:0x7f6f1fb89457
RSP: 002b:00007ffca5d33698 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 00007ffca5d33798 RCX: 00007f6f1fb89457
RDX: 0000000000000008 RSI: 00007ffca5d33798 RDI: 000000000000000b
RBP: 00005563fc463760 R08: 0000000000000007 R09: 5985093cb49336ff
R10: 00000000ffffffff R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dbus-daemon     state:S stack:28048 pid:2887  tgid:2887  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
 ep_poll fs/eventpoll.c:2062 [inline]
 do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
 __do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
 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: 0033:0x7f577c901457
RSP: 002b:00007fffbf8dc6e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 00007fffbf8dc6f8 RCX: 00007f577c901457
RDX: 0000000000000040 RSI: 00007fffbf8dc6f8 RDI: 0000000000000003
RBP: 00007fffbf8dca88 R08: 00000000000009e6 R09: 00007f577ca76080
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fffbf8dca88 R15: 00007fffbf8dcd98
 </TASK>
task:dhcpcd          state:S stack:25584 pid:2902  tgid:2902  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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: 0033:0x7febf724ead5
RSP: 002b:00007ffc11f079f0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000558fcc9d3f20 RCX: 00007febf724ead5
RDX: 00007ffc11f07a10 RSI: 0000000000000004 RDI: 0000558fcc9ddeb0
RBP: 00007ffc11f07d40 R08: 0000000000000008 R09: 00007febf7337080
R10: 00007ffc11f07d40 R11: 0000000000000246 R12: 00007ffc11f07a38
R13: 0000558fac79a610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:24592 pid:2903  tgid:2903  ppid:2902   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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: 0033:0x7febf724ead5
RSP: 002b:00007ffc11f079f0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000558fcc9d3f20 RCX: 00007febf724ead5
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000558fcc9d3f00
RBP: 00007ffc11f07d40 R08: 0000000000000008 R09: d604bde906010ffb
R10: 00007ffc11f07d40 R11: 0000000000000246 R12: 0000000000000000
R13: 0000558fac79a610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:27504 pid:2904  tgid:2904  ppid:2902   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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: 0033:0x7febf724ead5
RSP: 002b:00007ffc11f079f0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000558fcc9d3f20 RCX: 00007febf724ead5
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000558fcc9dd020
RBP: 00007ffc11f07d40 R08: 0000000000000008 R09: 0000558fac79a3d0
R10: 00007ffc11f07d40 R11: 0000000000000246 R12: 0000000000000000
R13: 0000558fac79a610 R14: 0000000000000003 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:27504 pid:2905  tgid:2905  ppid:2902   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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: 0033:0x7febf724ead5
RSP: 002b:00007ffc11f079f0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000558fcc9d3f20 RCX: 00007febf724ead5
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000558fcc9dd020
RBP: 00007ffc11f07d40 R08: 0000000000000008 R09: 0000558fac79a3d0
R10: 00007ffc11f07d40 R11: 0000000000000246 R12: 0000000000000000
R13: 0000558fac79a610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:sshd            state:S stack:27152 pid:2921  tgid:2921  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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: 0033:0x7f610d8d8ad5
RSP: 002b:00007fff7923ca00 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000564e2a5f2aa0 RCX: 00007f610d8d8ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000564e2a5f8920
RBP: 0000000000000064 R08: 0000000000000008 R09: 0000000000000000
R10: 00007fff7923cbb8 R11: 0000000000000246 R12: 0000564e2a5f8920
R13: 00007fff7923cbb8 R14: 0000000000000002 R15: 0000564e2a5f890c
 </TASK>
task:getty           state:S stack:25424 pid:2923  tgid:2923  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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: 0033:0x7fb61bbb8b6a
RSP: 002b:00007ffe3dacd978 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055d623be62c0 RCX: 00007fb61bbb8b6a
RDX: 0000000000000001 RSI: 00007ffe3dacd990 RDI: 0000000000000000
RBP: 000055d623be6320 R08: 0000000000000000 R09: 9efd068ea1cce26d
R10: 0000000000000010 R11: 0000000000000246 R12: 000055d623be635c
R13: 00007ffe3dacd990 R14: 0000000000000000 R15: 000055d623be635c
 </TASK>
task:dhcpcd          state:S stack:27424 pid:2925  tgid:2925  ppid:2903   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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: 0033:0x7febf724ead5
RSP: 002b:00007ffc11f079f0 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000558fcc9d3f20 RCX: 00007febf724ead5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000558fcc9ded90
RBP: 00007ffc11f07d40 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffc11f07d40 R11: 0000000000000246 R12: 0000000000000000
R13: 0000558fac79a610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:sshd            state:S stack:25424 pid:2955  tgid:2955  ppid:2921   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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: 0033:0x7f2e31e69ad5
RSP: 002b:00007ffcc3e26790 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00000000000668a0 RCX: 00007f2e31e69ad5
RDX: 00007ffcc3e267b0 RSI: 0000000000000004 RDI: 000056135f892700
RBP: 000056135f8912d0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffcc3e26898 R11: 0000000000000246 R12: 0000561330673aa4
R13: 0000000000000001 R14: 00005613306743e8 R15: 00007ffcc3e26818
 </TASK>
task:syz-executor    state:D stack:23504 pid:2957  tgid:2957  ppid:2955   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 io_schedule+0xbf/0x130 kernel/sched/core.c:7574
 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_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5773
 __ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:5947
 ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:5984
 __mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2493
 generic_update_time+0xcf/0xf0 fs/inode.c:2043
 inode_update_time fs/inode.c:2056 [inline]
 __file_update_time fs/inode.c:2245 [inline]
 file_update_time+0x12e/0x160 fs/inode.c:2275
 ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6102
 do_page_mkwrite+0x177/0x380 mm/memory.c:3162
 wp_page_shared mm/memory.c:3563 [inline]
 do_wp_page+0xaa0/0x3fa0 mm/memory.c:3713
 handle_pte_fault mm/memory.c:5771 [inline]
 __handle_mm_fault+0xd92/0x3390 mm/memory.c:5898
 handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6066
 do_user_addr_fault+0x613/0x12c0 arch/x86/mm/fault.c:1338
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fb7089463f5
RSP: 002b:00007ffff2bcf110 EFLAGS: 00010202
RAX: 00007fb7036ea000 RBX: 00007ffff2bcf220 RCX: 00007fb7032ea210
RDX: 00007fb7036e9ffc RSI: 0000000000000008 RDI: 00007ffff2bcf220
RBP: 00000000000003e6 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffff2bcf200 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:kworker/0:3     state:I stack:22080 pid:5240  tgid:5240  ppid:2      flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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>
task:kworker/0:4     state:I stack:20864 pid:5242  tgid:5242  ppid:2      flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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>
task:kworker/1:3     state:D stack:22256 pid:5248  tgid:5248  ppid:2      flags:0x00004000
Workqueue: pm hcd_resume_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2615
 schedule_timeout_uninterruptible kernel/time/timer.c:2649 [inline]
 msleep+0x9b/0xd0 kernel/time/timer.c:2770
 hub_activate+0x1326/0x1d60 drivers/usb/core/hub.c:1322
 hub_resume+0xaa/0x3f0 drivers/usb/core/hub.c:4005
 usb_resume_interface.constprop.0.isra.0+0x2c8/0x3e0 drivers/usb/core/driver.c:1379
 usb_resume_both+0x274/0x800 drivers/usb/core/driver.c:1539
 __rpm_callback+0xc5/0x4c0 drivers/base/power/runtime.c:394
 rpm_callback+0x192/0x1d0 drivers/base/power/runtime.c:448
 rpm_resume+0xd2c/0x1330 drivers/base/power/runtime.c:914
 __pm_runtime_resume+0xb6/0x170 drivers/base/power/runtime.c:1172
 pm_runtime_resume_and_get include/linux/pm_runtime.h:430 [inline]
 usb_autoresume_device+0x23/0xe0 drivers/usb/core/driver.c:1727
 usb_remote_wakeup+0x8d/0xe0 drivers/usb/core/hub.c:3843
 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>
task:kworker/0:5     state:D stack:21280 pid:5252  tgid:5252  ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2591
 ___down_common+0x2d7/0x460 kernel/locking/semaphore.c:225
 __down_common kernel/locking/semaphore.c:246 [inline]
 __down+0x20/0x30 kernel/locking/semaphore.c:254
 down+0x74/0xa0 kernel/locking/semaphore.c:63
 hid_device_remove+0x29/0x260 drivers/hid/hid-core.c:2749
 device_remove+0xc8/0x170 drivers/base/dd.c:567
 __device_release_driver drivers/base/dd.c:1273 [inline]
 device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1296
 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576
 device_del+0x396/0x9f0 drivers/base/core.c:3864
 hid_remove_device drivers/hid/hid-core.c:2939 [inline]
 hid_destroy_device+0xe5/0x150 drivers/hid/hid-core.c:2959
 usbhid_disconnect+0xa0/0xe0 drivers/hid/usbhid/hid-core.c:1458
 usb_unbind_interface+0x1e8/0x970 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:569 [inline]
 device_remove+0x122/0x170 drivers/base/dd.c:561
 __device_release_driver drivers/base/dd.c:1273 [inline]
 device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1296
 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576
 device_del+0x396/0x9f0 drivers/base/core.c:3864
 usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1418
 usb_disconnect+0x2e1/0x920 drivers/usb/core/hub.c:2304
 hub_port_connect drivers/usb/core/hub.c:5361 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x1bed/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>
task:kworker/1:4     state:I stack:21552 pid:5303  tgid:5303  ppid:2      flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 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>
task:kworker/1:5     state:D stack:21968 pid:5336  tgid:5336  ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2615
 schedule_timeout_uninterruptible kernel/time/timer.c:2649 [inline]
 msleep+0x9b/0xd0 kernel/time/timer.c:2770
 hub_port_reset+0x497/0x1e60 drivers/usb/core/hub.c:3119
 hub_port_init+0x73e/0x3ab0 drivers/usb/core/hub.c:5010
 hub_port_connect drivers/usb/core/hub.c:5450 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x2c16/0x4f40 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

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/29 13:52 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing c67e9601e29a 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in ret_from_fork_asm
* Struck through repros no longer work on HEAD.