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INFO: rcu detected stall in sys_clock_nanosleep (5)

Status: upstream: reported C repro on 2023/08/17 09:25
Subsystems: kernel
[Documentation on labels]
Reported-by: syzbot+43cc00d616820666f675@syzkaller.appspotmail.com
First crash: 460d, last: 5d22h
Cause bisection: failed (error log, bisect log)
  
Fix bisection: fixed by (bisect log) :
commit 8c21ab1bae945686c602c5bfa4e3f3352c2452c5
Author: Eric Dumazet <edumazet@google.com>
Date: Tue Aug 29 12:35:41 2023 +0000

  net/sched: fq_pie: avoid stalls in fq_pie_timer()

  
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [kernel?] INFO: rcu detected stall in sys_clock_nanosleep (5) 0 (2) 2023/09/28 08:34
▶ ▼ Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 INFO: rcu detected stall in sys_clock_nanosleep 1 228d 228d 0/3 auto-obsoleted due to no activity on 2023/12/20 18:13
linux-6.1 INFO: rcu detected stall in sys_clock_nanosleep (2) 2 42d 107d 0/3 upstream: reported on 2024/01/10 22:07
upstream INFO: rcu detected stall in sys_clock_nanosleep (4) kernel 6 577d 697d 0/26 auto-obsoleted due to no activity on 2022/12/31 21:43
upstream INFO: rcu detected stall in sys_clock_nanosleep (3) kernel 3 874d 884d 0/26 closed as invalid on 2022/02/08 10:00
upstream INFO: rcu detected stall in sys_clock_nanosleep kernel 1 1129d 1129d 0/26 auto-closed as invalid on 2021/06/22 18:23
linux-6.1 INFO: rcu detected stall in sys_clock_nanosleep 1 404d 404d 0/3 auto-obsoleted due to no activity on 2023/07/17 12:13
upstream INFO: rcu detected stall in sys_clock_nanosleep (2) kernel 1 1007d 1007d 0/26 auto-closed as invalid on 2021/10/22 22:53
linux-5.15 INFO: rcu detected stall in sys_clock_nanosleep (2) 2 31d 104d 0/3 upstream: reported on 2024/01/13 21:31
▶ ▼ Last patch testing requests (3)
Created Duration User Patch Repo Result
2023/09/01 01:29 22m retest repro upstream OK log
2023/09/01 01:29 22m retest repro net OK log
2023/08/17 10:49 23m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git c1a515d3c027 OK log

Sample crash report:
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 0-...D
 } 2636 jiffies s: 29341 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7472 Comm: syz-executor.3 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:236 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x26/0x90 kernel/kcov.c:304
Code: 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 65 48 8b 14 25 80 d0 03 00 65 8b 05 e0 d6 6e 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b <83> ba 14 16 00 00 00 74 52 8b 82 f0 15 00 00 83 f8 03 75 47 48 8b
RSP: 0018:ffffc90000006158 EFLAGS: 00000006
RAX: 0000000000000104 RBX: 000000000000000a RCX: ffff888020b41e00
RDX: ffff888020b41e00 RSI: 000000000000000a RDI: 000000000000000a
RBP: ffffc90000006270 R08: ffffffff8b6daa2a R09: 0000000000000000
R10: ffffc900000061e0 R11: fffff52000000c3f R12: 00000000ffff0a00
R13: dffffc0000000000 R14: 0000000000000635 R15: ffffc900000065c1
FS:  000055555b514480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f19dd9b7290 CR3: 000000006b148000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 number+0x31a/0xf90 lib/vsprintf.c:500
 vsnprintf+0x1542/0x1da0 lib/vsprintf.c:2890
 sprintf+0xda/0x120 lib/vsprintf.c:3028
 print_time kernel/printk/printk.c:1330 [inline]
 info_print_prefix+0x16b/0x310 kernel/printk/printk.c:1356
 record_print_text kernel/printk/printk.c:1405 [inline]
 printk_get_next_message+0x6da/0xbe0 kernel/printk/printk.c:2834
 console_emit_next_record kernel/printk/printk.c:2874 [inline]
 console_flush_all+0x410/0xfd0 kernel/printk/printk.c:2973
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3042
 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2342
 _printk+0xd5/0x120 kernel/printk/printk.c:2367
 printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
 show_trace_log_lvl+0x43a/0x520 arch/x86/kernel/dumpstack.c:285
 sched_show_task+0x50c/0x6d0 kernel/sched/core.c:9182
 show_state_filter+0x19e/0x270 kernel/sched/core.c:9227
 kbd_keycode drivers/tty/vt/keyboard.c:1524 [inline]
 kbd_event+0x30fa/0x4910 drivers/tty/vt/keyboard.c:1543
 input_to_handler drivers/input/input.c:132 [inline]
 input_pass_values+0x945/0x1200 drivers/input/input.c:161
 input_event_dispose+0x402/0x650 drivers/input/input.c:389
 input_handle_event+0xa71/0xbe0 drivers/input/input.c:406
 input_event+0xa4/0xd0 drivers/input/input.c:435
 hidinput_hid_event+0x13d4/0x1d50 drivers/hid/hid-input.c:1731
 hid_process_event+0x439/0x590 drivers/hid/hid-core.c:1541
 hid_input_array_field+0x3fb/0x5c0 drivers/hid/hid-core.c:1653
 hid_process_report drivers/hid/hid-core.c:1695 [inline]
 hid_report_raw_event+0xf51/0x18a0 drivers/hid/hid-core.c:2016
 hid_input_report+0x416/0x500 drivers/hid/hid-core.c:2090
 hid_irq_in+0x4a0/0x6d0 drivers/hid/usbhid/hid-core.c:284
 __usb_hcd_giveback_urb+0x373/0x530 drivers/usb/core/hcd.c:1650
 dummy_timer+0x8aa/0x3220 drivers/usb/gadget/udc/dummy_hcd.c:1987
 call_timer_fn+0x17e/0x600 kernel/time/timer.c:1792
 expire_timers kernel/time/timer.c:1843 [inline]
 __run_timers kernel/time/timer.c:2408 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2419
 run_timer_base kernel/time/timer.c:2428 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2438
 __do_softirq+0x2bc/0x943 kernel/softirq.c:554
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:645
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 fe 49 79 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> a3 f1 e5 f5 65 8b 05 f4 d5 84 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc9000bde7b80 EFLAGS: 00000206
RAX: 8b26507eeb2ec000 RBX: 1ffff920017bcf74 RCX: ffffffff944d9603
RDX: dffffc0000000000 RSI: ffffffff8baac1e0 RDI: 0000000000000001
RBP: ffffc9000bde7c10 R08: ffffffff8f872cef R09: 1ffffffff1f0e59d
R10: dffffc0000000000 R11: fffffbfff1f0e59e R12: dffffc0000000000
R13: 1ffff920017bcf70 R14: ffffc9000bde7ba0 R15: 0000000000000246
 hrtimer_start_expires include/linux/hrtimer.h:289 [inline]
 hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1972 [inline]
 do_nanosleep+0x158/0x600 kernel/time/hrtimer.c:2048
 hrtimer_nanosleep+0x227/0x470 kernel/time/hrtimer.c:2104
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
 __se_sys_clock_nanosleep+0x32b/0x3c0 kernel/time/posix-timers.c:1373
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f78366a9275
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 f6 b9 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 4f ba ff ff 48 8b 04 24 48 83 c4 28 f7 d8
RSP: 002b:00007f78368cfac0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007f78367abf80 RCX: 00007f78366a9275
RDX: 00007f78368cfb00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f78367ad980 R08: 0000000000000000 R09: 00007f783748b0b0
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000017dbfa
R13: ffffffffffffffff R14: 00007f7836200000 R15: 000000000017c7dc
 </TASK>
 __do_sys_ppoll fs/select.c:1122 [inline]
 __se_sys_ppoll+0x2a0/0x330 fs/select.c:1102
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f9a7bbfbad5
RSP: 002b:00007ffde0e8bf20 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 000055d51fb2ee20 RCX: 00007f9a7bbfbad5
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 000055d51fb37f20
RBP: 00007ffde0e8c270 R08: 0000000000000008 R09: 000055d5199fb3d0
R10: 00007ffde0e8c270 R11: 0000000000000246 R12: 0000000000000000
R13: 000055d5199fb610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:sshd            state:S stack:22744 pid:4818  tgid:4818  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_hrtimeout_range_clock+0x36e/0x480 kernel/time/hrtimer.c:2296
 poll_schedule_timeout fs/select.c:244 [inline]
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xe40/0x1330 fs/select.c:1016
 __do_sys_ppoll fs/select.c:1122 [inline]
 __se_sys_ppoll+0x2a0/0x330 fs/select.c:1102
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fa33fb19ad5
RSP: 002b:00007ffcebabd880 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 000056537c729440 RCX: 00007fa33fb19ad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000056537c72ee20
RBP: 0000000000000064 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffcebabda38 R11: 0000000000000246 R12: 000056537c72ee20
R13: 00007ffcebabda38 R14: 0000000000000002 R15: 000056537c72a49c
 </TASK>
task:getty           state:S stack:20888 pid:4821  tgid:4821  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2548
 wait_woken+0xc1/0x190 kernel/sched/wait.c:423
 n_tty_read+0x114e/0x1e10 drivers/tty/n_tty.c:2267
 iterate_tty_read drivers/tty/tty_io.c:862 [inline]
 tty_read+0x25e/0x690 drivers/tty/tty_io.c:937
 call_read_iter include/linux/fs.h:2102 [inline]
 new_sync_read fs/read_write.c:395 [inline]
 vfs_read+0x97b/0xb70 fs/read_write.c:476
 ksys_read+0x1a0/0x2c0 fs/read_write.c:619
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f9d63f86b6a
RSP: 002b:00007fffa5abdb88 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055974575a910 RCX: 00007f9d63f86b6a
RDX: 0000000000000001 RSI: 00007fffa5abdba0 RDI: 0000000000000000
RBP: 000055974575a970 R08: 0000000000000000 R09: 82176a6c2f103f38
R10: 0000000000000010 R11: 0000000000000246 R12: 000055974575a9ac
R13: 00007fffa5abdba0 R14: 0000000000000000 R15: 000055974575a9ac
 </TASK>
task:kworker/0:3     state:I stack:21072 pid:4857  tgid:4857  ppid:2      flags:0x00004000
Workqueue:  0x0 (wg-crypt-wg1)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 worker_thread+0xa2c/0xd70 kernel/workqueue.c:3431
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
task:dhcpcd          state:S stack:24984 pid:4859  tgid:4859  ppid:4737   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_hrtimeout_range_clock+0x36e/0x480 kernel/time/hrtimer.c:2296
 poll_schedule_timeout fs/select.c:244 [inline]
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xe40/0x1330 fs/select.c:1016
 __do_sys_ppoll fs/select.c:1122 [inline]
 __se_sys_ppoll+0x2a0/0x330 fs/select.c:1102
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f9a7bbfbad5
RSP: 002b:00007ffde0e8bf20 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 000055d51fb2ee20 RCX: 00007f9a7bbfbad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055d51fb43670
RBP: 00007ffde0e8c270 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffde0e8c270 R11: 0000000000000246 R12: 0000000000000000
R13: 000055d5199fb610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:25712 pid:4873  tgid:4873  ppid:4737   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_hrtimeout_range_clock+0x36e/0x480 kernel/time/hrtimer.c:2296
 poll_schedule_timeout fs/select.c:244 [inline]
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xe40/0x1330 fs/select.c:1016
 __do_sys_ppoll fs/select.c:1122 [inline]
 __se_sys_ppoll+0x2a0/0x330 fs/select.c:1102
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f9a7bbfbad5
RSP: 002b:00007ffde0e8bf20 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 000055d51fb2ee20 RCX: 00007f9a7bbfbad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055d51fb43670
RBP: 00007ffde0e8c270 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffde0e8c270 R11: 0000000000000246 R12: 0000000000000000
R13: 000055d5199fb610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:25712 pid:4887  tgid:4887  ppid:4737   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_hrtimeout_range_clock+0x36e/0x480 kernel/time/hrtimer.c:2296
 poll_schedule_timeout fs/select.c:244 [inline]
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xe40/0x1330 fs/select.c:1016
 __do_sys_ppoll fs/select.c:1122 [inline]
 __se_sys_ppoll+0x2a0/0x330 fs/select.c:1102
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f9a7bbfbad5
RSP: 002b:00007ffde0e8bf20 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 000055d51fb2ee20 RCX: 00007f9a7bbfbad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055d51fb43670
RBP: 00007ffde0e8c270 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffde0e8c270 R11: 0000000000000246 R12: 0000000000000000
R13: 000055d5199fb610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:25712 pid:4888  tgid:4888  ppid:4737   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_hrtimeout_range_clock+0x36e/0x480 kernel/time/hrtimer.c:2296
 poll_schedule_timeout fs/select.c:244 [inline]
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xe40/0x1330 fs/select.c:1016
 __do_sys_ppoll fs/select.c:1122 [inline]
 __se_sys_ppoll+0x2a0/0x330 fs/select.c:1102
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f9a7bbfbad5
RSP: 002b:00007ffde0e8bf20 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 000055d51fb2ee20 RCX: 00007f9a7bbfbad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055d51fb43670
RBP: 00007ffde0e8c270 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffde0e8c270 R11: 0000000000000246 R12: 0000000000000000
R13: 000055d5199fb610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:25712 pid:4889  tgid:4889  ppid:4737   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_hrtimeout_range_clock+0x36e/0x480 kernel/time/hrtimer.c:2296
 poll_schedule_timeout fs/select.c:244 [inline]
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xe40/0x1330 fs/select.c:1016
 __do_sys_ppoll fs/select.c:1122 [inline]
 __se_sys_ppoll+0x2a0/0x330 fs/select.c:1102
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f9a7bbfbad5
RSP: 002b:00007ffde0e8bf20 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 000055d51fb2ee20 RCX: 00007f9a7bbfbad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055d51fb43670
RBP: 00007ffde0e8c270 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffde0e8c270 R11: 0000000000000246 R12: 0000000000000000
R13: 000055d5199fb610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:25712 pid:4890  tgid:4890  ppid:4737   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_hrtimeout_range_clock+0x36e/0x480 kernel/time/hrtimer.c:2296
 poll_schedule_timeout fs/select.c:244 [inline]
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xe40/0x1330 fs/select.c:1016
 __do_sys_ppoll fs/select.c:1122 [inline]
 __se_sys_ppoll+0x2a0/0x330 fs/select.c:1102
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f9a7bbfbad5
RSP: 002b:00007ffde0e8bf20 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 000055d51fb2ee20 RCX: 00007f9a7bbfbad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055d51fb43670
RBP: 00007ffde0e8c270 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffde0e8c270 R11: 0000000000000246 R12: 0000000000000000
R13: 000055d5199fb610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:dhcpcd          state:S stack:25272 pid:4915  tgid:4915  ppid:4737   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_hrtimeout_range_clock+0x36e/0x480 kernel/time/hrtimer.c:2296
 poll_schedule_timeout fs/select.c:244 [inline]
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xe40/0x1330 fs/select.c:1016
 __do_sys_ppoll fs/select.c:1122 [inline]
 __se_sys_ppoll+0x2a0/0x330 fs/select.c:1102
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f9a7bbfbad5
RSP: 002b:00007ffde0e8bf20 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 000055d51fb2ee20 RCX: 00007f9a7bbfbad5
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055d51fb43670
RBP: 00007ffde0e8c270 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffde0e8c270 R11: 0000000000000246 R12: 0000000000000000
R13: 000055d5199fb610 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:kworker/1:2     state:I stack:20336 pid:5099  tgid:5099  ppid:2      flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 worker_thread+0xa2c/0xd70 kernel/workqueue.c:3431
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
task:kworker/1:0     state:D stack:19120 pid:5112  tgid:5112  ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 usb_kill_urb+0x1c9/0x300 drivers/usb/core/urb.c:713
 usb_hcd_flush_endpoint+0x373/0x3f0 drivers/usb/core/hcd.c:1815
 usb_disable_endpoint drivers/usb/core/message.c:1300 [inline]
 usb_disable_interface+0x1fd/0x2e0 drivers/usb/core/message.c:1346
 usb_unbind_interface+0x1ac/0x850 drivers/usb/core/driver.c:459
 device_remove drivers/base/dd.c:569 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x503/0x7c0 drivers/base/dd.c:1295
 bus_remove_device+0x34f/0x420 drivers/base/bus.c:574
 device_del+0x581/0xa30 drivers/base/core.c:3828
 usb_disable_device+0x3bf/0x850 drivers/usb/core/message.c:1416
 usb_disconnect+0x340/0x950 drivers/usb/core/hub.c:2267
 hub_port_connect drivers/usb/core/hub.c:5323 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5623 [inline]
 port_event drivers/usb/core/hub.c:5783 [inline]
 hub_event+0x1e62/0x50f0 drivers/usb/core/hub.c:5865
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
task:sshd            state:S stack:23800 pid:5122  tgid:5122  ppid:4818   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_hrtimeout_range_clock+0x2a9/0x480 kernel/time/hrtimer.c:2312
 poll_schedule_timeout fs/select.c:244 [inline]
 do_poll fs/select.c:965 [inline]
 do_sys_poll+0xe40/0x1330 fs/select.c:1016
 __do_sys_ppoll fs/select.c:1122 [inline]
 __se_sys_ppoll+0x2a0/0x330 fs/select.c:1102
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f5bd12dbad5
RSP: 002b:00007ffd94951260 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00000000000668a0 RCX: 00007f5bd12dbad5
RDX: 00007ffd94951280 RSI: 0000000000000004 RDI: 000055d3f5a957d0
RBP: 000055d3f5a943a0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffd94951368 R11: 0000000000000246 R12: 000055d3c84b8aa4
R13: 0000000000000001 R14: 000055d3c84b93e8 R15: 00007ffd949512e8
 </TASK>
task:syz-execprog    state:S stack:23800 pid:5124  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 do_wait+0x295/0x540 kernel/exit.c:1636
 kernel_waitid kernel/exit.c:1714 [inline]
 __do_sys_waitid kernel/exit.c:1727 [inline]
 __se_sys_waitid+0x146/0x4a0 kernel/exit.c:1722
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x40720e
RSP: 002b:000000c001361508 EFLAGS: 00000202 ORIG_RAX: 00000000000000f7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 000000000040720e
RDX: 000000c001361618 RSI: 0000000000001b31 RDI: 0000000000000001
RBP: 000000c001361548 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000001000004 R11: 0000000000000202 R12: 000000c001361660
R13: 000000c00140d98c R14: 000000c001418820 R15: 0000000000000000
 </TASK>
task:syz-execprog    state:S stack:25080 pid:5125  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 futex_wait_queue+0x14e/0x1d0 kernel/futex/waitwake.c:370
 __futex_wait+0x17f/0x320 kernel/futex/waitwake.c:669
 futex_wait+0x101/0x360 kernel/futex/waitwake.c:697
 do_futex+0x33b/0x560 kernel/futex/syscalls.c:102
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x46f183
RSP: 002b:000000c000069e80 EFLAGS: 00000202 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046f183
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000231dec0
RBP: 000000c000069ec8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c000069eb8 R11: 0000000000000202 R12: 000000c000069eb8
R13: 000000c0012e9000 R14: 000000c0000064e0 R15: 0000000000000010
 </TASK>
task:syz-execprog    state:S stack:26864 pid:5126  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 futex_wait_queue+0x14e/0x1d0 kernel/futex/waitwake.c:370
 __futex_wait+0x17f/0x320 kernel/futex/waitwake.c:669
 futex_wait+0x101/0x360 kernel/futex/waitwake.c:697
 do_futex+0x33b/0x560 kernel/futex/syscalls.c:102
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x46f183
RSP: 002b:000000c0013656d0 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046f183
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000235c6e0
RBP: 000000c001365718 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 000000000046b440
R13: 000000c0012e8c00 R14: 000000c0004b6d00 R15: 000000000000000e
 </TASK>
task:syz-execprog    state:S stack:25328 pid:5127  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 do_wait+0x295/0x540 kernel/exit.c:1636
 kernel_waitid kernel/exit.c:1714 [inline]
 __do_sys_waitid kernel/exit.c:1727 [inline]
 __se_sys_waitid+0x146/0x4a0 kernel/exit.c:1722
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x40720e
RSP: 002b:000000c001366d08 EFLAGS: 00000202 ORIG_RAX: 00000000000000f7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 000000000040720e
RDX: 000000c001366e18 RSI: 0000000000001dcd RDI: 0000000000000001
RBP: 000000c001366d48 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000001000004 R11: 0000000000000202 R12: 000000c001366e60
R13: 0000000000000001 R14: 000000c001398340 R15: 000000000125f960
 </TASK>
task:syz-execprog    state:S stack:24024 pid:5128  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 futex_wait_queue+0x14e/0x1d0 kernel/futex/waitwake.c:370
 __futex_wait+0x17f/0x320 kernel/futex/waitwake.c:669
 futex_wait+0x101/0x360 kernel/futex/waitwake.c:697
 do_futex+0x33b/0x560 kernel/futex/syscalls.c:102
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x46f183
RSP: 002b:000000c000083e58 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046f183
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000c00052c948
RBP: 000000c000083ea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000443640
R13: 000000c001364fa4 R14: 000000c0004b7520 R15: 0000000000000042
 </TASK>
task:syz-execprog    state:S stack:27608 pid:5133  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 futex_wait_queue+0x14e/0x1d0 kernel/futex/waitwake.c:370
 __futex_wait+0x17f/0x320 kernel/futex/waitwake.c:669
 futex_wait+0x101/0x360 kernel/futex/waitwake.c:697
 do_futex+0x33b/0x560 kernel/futex/syscalls.c:102
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x46f183
RSP: 002b:000000c001377ef0 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046f183
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000235c558
RBP: 000000c001377f38 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 000000000046b440
R13: 000000c0012e8800 R14: 000000c0004b69c0 R15: 0000000000000006
 </TASK>
task:syz-execprog    state:S stack:25016 pid:5134  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_hrtimeout_range_clock+0x2a9/0x480 kernel/time/hrtimer.c:2312
 ep_poll fs/eventpoll.c:2026 [inline]
 do_epoll_wait+0x1cb6/0x1f70 fs/eventpoll.c:2428
 do_epoll_pwait+0x56/0x1e0 fs/eventpoll.c:2462
 __do_sys_epoll_pwait fs/eventpoll.c:2475 [inline]
 __se_sys_epoll_pwait fs/eventpoll.c:2469 [inline]
 __x64_sys_epoll_pwait+0x2b8/0x310 fs/eventpoll.c:2469
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x40720e
RSP: 002b:000000c001373748 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000040720e
RDX: 0000000000000080 RSI: 000000c001373818 RDI: 0000000000000004
RBP: 000000c001373790 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000003e7 R11: 0000000000000246 R12: 000000c001373820
R13: 0000000000000001 R14: 000000c0004b76c0 R15: 0000000000000000
 </TASK>
task:syz-execprog    state:S stack:25080 pid:5135  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 futex_wait_queue+0x14e/0x1d0 kernel/futex/waitwake.c:370
 __futex_wait+0x17f/0x320 kernel/futex/waitwake.c:669
 futex_wait+0x101/0x360 kernel/futex/waitwake.c:697
 do_futex+0x33b/0x560 kernel/futex/syscalls.c:102
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x46f183
RSP: 002b:000000c001179d70 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046f183
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000c001168148
RBP: 000000c001179db8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 000000c001179dc8
R13: 000000c001361f8c R14: 000000c00011e820 R15: 0000000000000000
 </TASK>
task:syz-execprog    state:S stack:23896 pid:5136  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 do_wait+0x295/0x540 kernel/exit.c:1636
 kernel_waitid kernel/exit.c:1714 [inline]
 __do_sys_waitid kernel/exit.c:1727 [inline]
 __se_sys_waitid+0x146/0x4a0 kernel/exit.c:1722
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x40720e
RSP: 002b:000000c001362d08 EFLAGS: 00000202 ORIG_RAX: 00000000000000f7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 000000000040720e
RDX: 000000c001362e18 RSI: 0000000000001c86 RDI: 0000000000000001
RBP: 000000c001362d48 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000001000004 R11: 0000000000000202 R12: 000000c001362e60
R13: 000000c00140f98c R14: 000000c0013996c0 R15: 0000000000000000
 </TASK>
task:syz-execprog    state:S stack:25872 pid:5137  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 futex_wait_queue+0x14e/0x1d0 kernel/futex/waitwake.c:370
 __futex_wait+0x17f/0x320 kernel/futex/waitwake.c:669
 futex_wait+0x101/0x360 kernel/futex/waitwake.c:697
 do_futex+0x33b/0x560 kernel/futex/syscalls.c:102
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x46f183
RSP: 002b:000000c001397d70 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046f183
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000c0012e9148
RBP: 000000c001397db8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 000000c000040000
R13: 000000c00004e772 R14: 000000c0004b7a00 R15: 0000000000000000
 </TASK>
task:syz-execprog    state:S stack:22744 pid:5143  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 do_wait+0x295/0x540 kernel/exit.c:1636
 kernel_waitid kernel/exit.c:1714 [inline]
 __do_sys_waitid kernel/exit.c:1727 [inline]
 __se_sys_waitid+0x146/0x4a0 kernel/exit.c:1722
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x40720e
RSP: 002b:000000c001365d08 EFLAGS: 00000202 ORIG_RAX: 00000000000000f7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 000000000040720e
RDX: 000000c001365e18 RSI: 0000000000001c81 RDI: 0000000000000001
RBP: 000000c001365d48 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000001000004 R11: 0000000000000202 R12: 000000c001365e60
R13: 000000c0012e9400 R14: 000000c001398000 R15: 0000000000000000
 </TASK>
task:syz-execprog    state:S stack:24856 pid:5206  tgid:5124  ppid:5122   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 futex_wait_queue+0x14e/0x1d0 kernel/futex/waitwake.c:370
 __futex_wait+0x17f/0x320 kernel/futex/waitwake.c:669
 futex_wait+0x101/0x360 kernel/futex/waitwake.c:697
 do_futex+0x33b/0x560 kernel/futex/syscalls.c:102
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x46f183
RSP: 002b:000000c00142bd70 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046f183
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000c001168948
RBP: 000000c00142bdb8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 000000c00142bdc8
R13: 000000c00140198c R14: 000000c001418d00 R15: 0000000000000000
 </TASK

Crashes (25):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/10 10:12 upstream 480e035fc4c7 56086b24 .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_clock_nanosleep
2023/08/04 16:07 upstream c1a515d3c027 74621247 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_clock_nanosleep
2023/06/27 07:12 net 6709d4b7bc2e 4cd5bb25 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_clock_nanosleep
2024/04/08 09:23 upstream fe46a7dd189e ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_clock_nanosleep
2024/03/27 20:51 upstream fe46a7dd189e 454571b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_clock_nanosleep
2023/11/10 11:35 upstream 89cdf9d55601 45e9b83e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_clock_nanosleep
2023/08/11 05:20 upstream 25aa0bebba72 da3c3ef8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_clock_nanosleep
2023/07/16 23:40 upstream 20edcec23f92 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_clock_nanosleep
2023/06/22 03:23 upstream dad9774deaf1 09ffe269 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_clock_nanosleep
2023/06/07 10:04 upstream a4d7d7011219 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_clock_nanosleep
2023/06/07 09:43 upstream a4d7d7011219 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_clock_nanosleep
2023/05/13 08:38 upstream 9a48d6046722 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_clock_nanosleep
2023/02/24 17:35 upstream d2980d8d8265 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_clock_nanosleep
2023/01/23 03:34 upstream 2475bf0250de 559a440a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_clock_nanosleep
2023/07/27 19:28 net de52e17326c3 92476829 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_clock_nanosleep
2023/06/06 01:36 net-next 28cfea989d6f a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_clock_nanosleep
2023/06/03 10:56 net-next 4ec732951702 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_clock_nanosleep
2024/04/21 07:43 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing a788e53c05ae af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_clock_nanosleep
2024/04/17 22:09 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing a788e53c05ae acc528cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_clock_nanosleep
2024/04/10 00:51 linux-next a053fd3ca5d1 56086b24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_clock_nanosleep
2024/01/04 20:17 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 79c58ab241be 28c42cff .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_clock_nanosleep
2023/11/11 10:45 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 6bc986ab839c 6d6dbf8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_clock_nanosleep
2023/09/30 07:15 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 6465e260f487 8e26a358 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_clock_nanosleep
2023/09/29 09:47 linux-next df964ce9ef9f d265efd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_clock_nanosleep
2023/02/07 04:37 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 41070a7027e9 0a9c11b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in sys_clock_nanosleep
* Struck through repros no longer work on HEAD.