yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 GPs behind) idle=208c/1/0x4000000000000000 softirq=353083/353091 fqs=2
rcu: 	(detected by 0, t=10505 jiffies, g=376585, q=134 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 23872 Comm: syz.6.16956 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:timerqueue_linked_add+0x2d9/0x2e0
Code: cc cc e8 3a 96 fb f5 48 83 c3 08 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 c1 28 69 f6 4c 89 2b 41 80 3c 2e 00 75 b5 <eb> bb cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000a08d58 EFLAGS: 00000046
RAX: 1ffff110478c506c RBX: ffff88823c628360 RCX: ffff88810c051dc0
RDX: 0000000000010000 RSI: ffff88823c628358 RDI: ffff88819941e300
RBP: dffffc0000000000 R08: ffff88819941e317 R09: 0000000000000000
R10: ffff88819941e308 R11: ffffed1033283c63 R12: 1ffff110478c5060
R13: ffff88819941e300 R14: 1ffff11033283c63 R15: ffff88819941e318
FS:  00007f898ede36c0(0000) GS:ffff8882a8f59000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000002a0b6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 enqueue_hrtimer+0x18e/0x2c0
 __hrtimer_run_queues+0x4ce/0xa10
 hrtimer_interrupt+0x448/0x910
 __sysvec_apic_timer_interrupt+0x102/0x430
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:memcpy_toio+0x7c/0xe0
Code: 02 40 0f 94 c5 31 ff e8 02 31 b6 fc b0 01 48 83 fb 02 73 4f 84 c0 74 51 e8 11 2c b6 fc 48 89 d9 48 c1 e9 02 4c 89 fe 4c 89 f7 <f3> a5 f6 c3 02 74 02 66 a5 f6 c3 01 74 01 a4 5b 41 5e 41 5f 5d e9
RSP: 0018:ffffc9000623f488 EFLAGS: 00010206
RAX: ffffffff8510c56f RBX: 0000000000001400 RCX: 000000000000009f
RDX: ffffc9000a1f0000 RSI: ffffc900047bc984 RDI: ffffc900050cb984
RBP: 0000000000001401 R08: ffffc9000623f670 R09: 0000000000000001
R10: ffffc9000623f699 R11: fffff52000c47ed4 R12: ffff88810a027958
R13: ffffc900050ca800 R14: ffffc900050ca800 R15: ffffc900047bb800
 drm_fb_memcpy+0x325/0x5d0
 bochs_primary_plane_helper_atomic_update+0x361/0xa30
 drm_atomic_helper_commit_planes+0x626/0xea0
 drm_atomic_helper_commit_tail+0x60/0x510
 commit_tail+0x2b1/0x3c0
 drm_atomic_helper_commit+0xa77/0xb10
 drm_atomic_commit+0x24e/0x2b0
 drm_client_modeset_commit_atomic+0x660/0x7e0
 drm_client_modeset_commit_locked+0xcb/0x4d0
 drm_client_modeset_commit+0x4a/0x70
 __drm_fb_helper_restore_fbdev_mode_unlocked+0x9c/0x1c0
 drm_fbdev_client_restore+0x1b/0x30
 drm_client_dev_restore+0x14c/0x290
 drm_release+0x32d/0x400
 __fput+0x418/0xa50
 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0x1fa/0x730
 do_syscall_64+0x353/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f898df5e98e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f898ede2b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffea RBX: 00007f898ede36c0 RCX: 00007f898df5e98e
RDX: 0000000000004000 RSI: 00007f898ede2c00 RDI: ffffffffffffff9c
RBP: 00007f898ede2c00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007f898e226038 R14: 00007f898e225fa0 R15: 00007ffc9a0cd218
 </TASK>
rcu: rcu_preempt kthread starved for 10495 jiffies! g376585 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27392 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_timeout+0x152/0x2c0
 rcu_gp_fqs_loop+0x30c/0x11f0
 rcu_gp_kthread+0x9e/0x2b0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 23468 Comm: kworker/u9:11 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x70
Code: 78 7e a5 11 65 8b 15 99 7e a5 11 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 24 17 00 00 00 74 2c 8b 91 f8 16 00 00 <83> fa 02 75 21 48 8b 91 00 17 00 00 48 8b 32 48 8d 7e 01 8b 89 fc
RSP: 0018:ffffc90007b47718 EFLAGS: 00000246
RAX: ffffffff81bad317 RBX: dffffc0000000000 RCX: ffff888111ad1dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90007b47860 R08: ffffffff90575937 R09: 1ffffffff20aeb26
R10: dffffc0000000000 R11: fffffbfff20aeb27 R12: 1ffff110478c81d1
R13: ffff88812103c448 R14: ffff88823c640e88 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88818d959000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fede6005ff8 CR3: 000000000e946000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 smp_call_function_many_cond+0x10c7/0x14b0
 on_each_cpu_cond_mask+0x3f/0x80
 smp_text_poke_batch_finish+0x5fd/0x1110
 arch_jump_label_transform_apply+0x1c/0x30
 static_key_enable_cpuslocked+0x128/0x240
 static_key_enable+0x1a/0x20
 toggle_allocation_gate+0xab/0x290
 process_scheduled_works+0xa8e/0x14e0
 worker_thread+0xa47/0xfb0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
urb_ctl_callback: 22540 callbacks suppressed
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
urb_ctl_callback: 23494 callbacks suppressed
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
yealink 10-1:36.0: urb_ctl_callback - urb status -32
