rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2658 jiffies s: 148393 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: usb 2-1: pegasus_irq - nonzero urb status received: -71 NMI backtrace for cpu 1 CPU: 1 PID: 4531 Comm: acpid Not tainted 6.10.0-rc7-syzkaller-00256-gd0d0cd380055 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:number+0x10c/0xf90 Code: 00 00 00 00 0a 00 00 48 39 c3 0f 95 c0 44 20 e8 88 44 24 0f 31 ff 48 8b 74 24 40 49 89 f5 e8 3b 61 16 f6 49 63 c6 48 c1 e8 08 <48> 89 44 24 18 48 bb ff ff ff ff ef ff ff ff 4c 21 f3 4c 89 64 24 RSP: 0018:ffffc90000a17580 EFLAGS: 00000006 RAX: 0000000000000005 RBX: 00000a0000000000 RCX: ffff88807c7b9e00 RDX: ffff88807c7b9e00 RSI: 00000000000005c7 RDI: 0000000000000000 RBP: ffffc90000a17690 R08: ffffffff8b7fcbc5 R09: 0000000000000000 R10: ffffc90000a17600 R11: fffff52000142ec3 R12: 00000000ffff0a00 R13: 00000000000005c7 R14: ffff0a0000000509 R15: ffffc90000a179e1 FS: 00007f0c0e890740(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe9db758de0 CR3: 000000007ca5c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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:2840 console_emit_next_record kernel/printk/printk.c:2880 [inline] console_flush_all+0x410/0xfd0 kernel/printk/printk.c:2979 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3048 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4909 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4920 _dev_err+0x122/0x170 drivers/base/core.c:4975 pegasus_irq+0x44d/0x5a0 drivers/input/tablet/pegasus_notetaker.c:195 __usb_hcd_giveback_urb+0x42c/0x6e0 drivers/usb/core/hcd.c:1650 dummy_timer+0x830/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline] RIP: 0010:write_comp_data kernel/kcov.c:235 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x8/0x90 kernel/kcov.c:311 Code: 44 0a 20 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 <65> 48 8b 0c 25 c0 d4 03 00 65 8b 05 b0 a7 6d 7e a9 00 01 ff 00 74 RSP: 0018:ffffc90000a18a98 EFLAGS: 00000246 RAX: 0000000000000102 RBX: ffff8880786a7b00 RCX: ffff88807c7b9e00 RDX: 0000000000000102 RSI: 0000000000000000 RDI: 0019999999999998 RBP: 0019999999999998 R08: ffffffff898dedf6 R09: fffff52000143158 R10: dffffc0000000000 R11: fffff52000143158 R12: 00051eb851eb851e R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 pie_calculate_probability+0x366/0x820 fq_pie_timer+0x26d/0x590 net/sched/sch_fq_pie.c:398 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 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 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 9e b4 6a f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 83 64 d4 f5 65 8b 05 34 9b 72 74 85 c0 74 43 48 c7 04 24 0e 36 RSP: 0018:ffffc900030bf380 EFLAGS: 00000206 RAX: 2509ba61a77b6300 RBX: 1ffff92000617e74 RCX: ffffffff8172daca RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: 0000000000000001 RBP: ffffc900030bf420 R08: ffffffff92fad74f R09: 1ffffffff25f5ae9 R10: dffffc0000000000 R11: fffffbfff25f5aea R12: dffffc0000000000 R13: 1ffff92000617e70 R14: ffffc900030bf3a0 R15: 0000000000000246 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] dummy_urb_enqueue+0x59c/0x760 drivers/usb/gadget/udc/dummy_hcd.c:1310 usb_hcd_submit_urb+0x36c/0x1e80 drivers/usb/core/hcd.c:1533 pegasus_open+0x111/0x210 drivers/input/tablet/pegasus_notetaker.c:228 input_open_device+0x191/0x2e0 drivers/input/input.c:654 mousedev_open_device+0xc7/0x160 drivers/input/mousedev.c:430 mousedev_open+0x2cf/0x470 drivers/input/mousedev.c:556 chrdev_open+0x5b0/0x630 fs/char_dev.c:414 do_dentry_open+0x970/0x1450 fs/open.c:955 vfs_open+0x3e/0x330 fs/open.c:1086 do_open fs/namei.c:3654 [inline] path_openat+0x2c01/0x35f0 fs/namei.c:3813 do_filp_open+0x235/0x490 fs/namei.c:3840 do_sys_openat2+0x13e/0x1d0 fs/open.c:1413 do_sys_open fs/open.c:1428 [inline] __do_sys_openat fs/open.c:1444 [inline] __se_sys_openat fs/open.c:1439 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1439 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0c0e95a9a4 Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffe1e738d70 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ffe1e739058 RCX: 00007f0c0e95a9a4 RDX: 0000000000080800 RSI: 00007ffe1e738f58 RDI: 00000000ffffff9c RBP: 00007ffe1e738f58 R08: 00000000000000f4 R09: 00007ffe1e738f58 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080800 R13: 0000000000000040 R14: 00007ffe1e739058 R15: 00007ffe1e738f58 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - nonzero urb status received: -71 usb 2-1: pegasus_irq - usb_submit_urb failed with result -1