rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=2204/1/0x4000000000000000 softirq=81118/81119 fqs=27
rcu: (detected by 1, t=10502 jiffies, g=72477, q=431 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 18706 Comm: syz.4.2964 Not tainted 6.13.0-rc2-syzkaller-00018-g7cb1b4663150 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:rcu_is_watching+0x67/0xb0 kernel/rcu/tree.c:738
Code: 89 f7 e8 dc 38 7e 00 48 c7 c3 d8 7c 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 22 8b 03 65 ff 0d f1 da 7e 7e <74> 10 83 e0 04 c1 e8 02 5b 41 5e 41 5f c3 cc cc cc cc e8 22 4e 85
RSP: 0018:ffffc90000007b00 EFLAGS: 00000006
RAX: 0000000000672204 RBX: ffff8880b8637cd8 RCX: ffffffff817ac0d0
RDX: 0000000000000000 RSI: ffffffff8c5ec2e0 RDI: ffffffff8c5ec2a0
RBP: ffffc90000007c60 R08: ffffffff90183af7 R09: 1ffffffff203075e
R10: dffffc0000000000 R11: fffffbfff203075f R12: 1ffff92000000f70
R13: ffffffff89c570a2 R14: ffffffff8e2cea90 R15: dffffc0000000000
FS: 00007ff032d696c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c42e639 CR3: 000000005c460000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xbf/0xa30 kernel/locking/lockdep.c:5860
rcu_lock_release include/linux/rcupdate.h:347 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
advance_sched+0xb32/0xca0 net/sched/sch_taprio.c:987
__run_hrtimer kernel/time/hrtimer.c:1739 [inline]
__hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:vprintk_store+0xe1c/0x1240 kernel/printk/printk.c:2358
Code: 0f 84 14 f6 ff ff e8 23 10 21 00 fb 31 c0 eb 1a e8 19 10 21 00 e8 54 dc 41 0a 4d 85 ff 74 b9 e8 0a 10 21 00 fb 48 8b 44 24 18 <48> c7 84 24 80 00 00 00 0e 36 e0 45 4b c7 04 2c 00 00 00 00 4b c7
RSP: 0018:ffffc90003456f20 EFLAGS: 00000287
RAX: 0000000000000050 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000e50f000 RSI: 00000000000006c5 RDI: 00000000000006c6
RBP: ffffc90003457170 R08: ffffffff817e4d8b R09: 1ffffffff203075e
R10: dffffc0000000000 R11: fffffbfff203075f R12: dffffc0000000000
R13: 1ffff9200068adf4 R14: 0000000000000046 R15: 0000000000000200
vprintk_emit+0x271/0xa10 kernel/printk/printk.c:2408
dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4935
dev_printk_emit+0xdd/0x120 drivers/base/core.c:4946
_dev_warn+0x122/0x170 drivers/base/core.c:5002
checkintf drivers/usb/core/devio.c:850 [inline]
proc_do_submiturb+0xc6d/0x3550 drivers/usb/core/devio.c:1656
proc_submiturb_compat drivers/usb/core/devio.c:2209 [inline]
usbdev_do_ioctl drivers/usb/core/devio.c:2733 [inline]
usbdev_ioctl+0x2c0a/0x6120 drivers/usb/core/devio.c:2827
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
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: 0033:0x7ff031f7ff19
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:00007ff032d69058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff032145fa0 RCX: 00007ff031f7ff19
RDX: 0000000020000280 RSI: 00000000802c550a RDI: 0000000000000005
RBP: 00007ff031ff3cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff032145fa0 R15: 00007fff2d837c88
rcu: rcu_preempt kthread starved for 10448 jiffies! g72477 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:25328 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 18707 Comm: syz.7.2961 Not tainted 6.13.0-rc2-syzkaller-00018-g7cb1b4663150 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x19f3/0x2c60 kernel/smp.c:884
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 56 e9 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 01 e5 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 e5 e4
RSP: 0018:ffffc900034072c0 EFLAGS: 00000246
RAX: ffffffff8193790b RBX: 1ffff110170c8c65 RCX: 0000000000080000
RDX: ffffc9001013d000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900034074c0 R08: ffffffff819378da R09: 1ffffffff284db10
R10: dffffc0000000000 R11: fffffbfff284db11 R12: dffffc0000000000
R13: ffff8880b8646328 R14: ffff8880b873f940 R15: 0000000000000000
FS: 00007fb77033f6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb77033efb8 CR3: 00000000121c0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2114 [inline]
text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2324
text_poke_flush arch/x86/kernel/alternative.c:2515 [inline]
text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2522
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210
static_key_enable+0x1a/0x20 kernel/jump_label.c:223
__sched_core_enable kernel/sched/core.c:432 [inline]
sched_core_get+0xae/0x180 kernel/sched/core.c:456
sched_core_alloc_cookie+0x71/0xa0 kernel/sched/core_sched.c:18
sched_core_share_pid+0x298/0x7d0 kernel/sched/core_sched.c:185
__do_sys_prctl kernel/sys.c:2741 [inline]
__se_sys_prctl+0x956/0x3bb0 kernel/sys.c:2467
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: 0033:0x7fb76f57ff19
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:00007fb77033f058 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
RAX: ffffffffffffffda RBX: 00007fb76f746080 RCX: 00007fb76f57ff19
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000003e
RBP: 00007fb76f5f3cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb76f746080 R15: 00007ffee5d28528
vkms_vblank_simulate: vblank timer overrun