rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2654 jiffies s: 40229 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 UID: 0 PID: 10852 Comm: syz.4.1526 Not tainted 6.11.0-rc7-syzkaller-00097-g196145c606d0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:217 [inline]
RIP: 0010:unwind_next_frame+0x26c/0x2a00 arch/x86/kernel/unwind_orc.c:494
Code: 52 00 39 eb 0f 86 02 1e 00 00 89 e8 48 8d 1c 85 04 7a 45 91 48 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 <84> c0 0f 85 b0 20 00 00 44 8b 3b 89 e8 ff c0 48 8d 1c 85 04 7a 45
RSP: 0018:ffffc90000006be8 EFLAGS: 00000807
RAX: 0000000000000000 RBX: ffffffff914776bc RCX: 00000000000b0001
RDX: ffff88806a8b9e00 RSI: 0000000000007f2e RDI: 00000000000b0000
RBP: 0000000000007f2e R08: ffffffff81412994 R09: ffffc90000006db0
R10: 0000000000000003 R11: ffffffff817f2f80 R12: ffffc90000006cc0
R13: 00000000000b0001 R14: dffffc0000000000 R15: ffffffff817f2eb8
FS:  000055556534a500(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2fb5a8 CR3: 000000006be68000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __kmalloc_cache_noprof+0x19c/0x2c0 mm/slub.c:4193
 kmalloc_noprof include/linux/slab.h:681 [inline]
 dummy_urb_enqueue+0x7d/0x760 drivers/usb/gadget/udc/dummy_hcd.c:1271
 usb_hcd_submit_urb+0x36c/0x1e80 drivers/usb/core/hcd.c:1533
 ath9k_hif_usb_reg_in_cb+0x472/0x650 drivers/net/wireless/ath/ath9k/hif_usb.c:792
 __usb_hcd_giveback_urb+0x42c/0x6e0 drivers/usb/core/hcd.c:1650
 dummy_timer+0x830/0x45a0 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:check_kcov_mode kernel/kcov.c:182 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x2f/0x70 kernel/kcov.c:216
Code: 8b 04 24 65 48 8b 0c 25 00 d7 03 00 65 8b 15 40 4a 70 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 1c 16 00 00 00 <74> 2c 8b 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b
RSP: 0018:ffffc90000007a98 EFLAGS: 00000246
RAX: ffffffff89be6122 RBX: 0000000000000000 RCX: ffff88806a8b9e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888061e4531a R08: ffffffff89be6112 R09: fffff52000000f58
R10: dffffc0000000000 R11: fffff52000000f58 R12: ffff888059465168
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888059465198
 pie_calculate_probability+0x5c2/0x820 net/sched/sch_pie.c:418
 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
 </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 ae 0b 37 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> f3 37 9f f5 65 8b 05 c4 0d 40 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc900166b7a60 EFLAGS: 00000206
RAX: e55cd7c41a5ed800 RBX: 1ffff92002cd6f50 RCX: ffffffff81703fea
RDX: dffffc0000000000 RSI: ffffffff8c0ad560 RDI: 0000000000000001
RBP: ffffc900166b7af8 R08: ffffffff941e48b7 R09: 1ffffffff283c916
R10: dffffc0000000000 R11: fffffbfff283c917 R12: dffffc0000000000
R13: 1ffff92002cd6f4c R14: ffffc900166b7a80 R15: 0000000000000246
 raw_queue_event+0x1ef/0x2e0 drivers/usb/gadget/legacy/raw_gadget.c:239
 gadget_disconnect+0x50/0xb0 drivers/usb/gadget/legacy/raw_gadget.c:387
 usb_gadget_disconnect_locked+0x21a/0x4b0 drivers/usb/gadget/udc/core.c:783
 gadget_unbind_driver+0xca/0x460 drivers/usb/gadget/udc/core.c:1666
 device_remove drivers/base/dd.c:566 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x4a9/0x7c0 drivers/base/dd.c:1295
 driver_detach+0x1fb/0x2d0 drivers/base/dd.c:1358
 bus_remove_driver+0x1f3/0x320 drivers/base/bus.c:742
 usb_gadget_unregister_driver+0x4e/0x70 drivers/usb/gadget/udc/core.c:1731
 raw_release+0xf9/0x1e0 drivers/usb/gadget/legacy/raw_gadget.c:462
 __fput+0x24a/0x8a0 fs/file_table.c:422
 task_work_run+0x24f/0x310 kernel/task_work.c:228
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [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+0x168/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd25277def9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd252a5fb88 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000059af3 RCX: 00007fd25277def9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fd252937a80 R08: 0000000000000001 R09: 00007fd252a5fe7f
R10: 00007fd252600000 R11: 0000000000000246 R12: 000000000005a6de
R13: 00007fd252a5fc90 R14: 0000000000000bea R15: ffffffffffffffff
 </TASK>
GRED: Unable to relocate VQ 0x0 after dequeue, screwing up backlog