rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 ticks this GP) idle=7d7c/1/0x4000000000000000 softirq=34386/34386 fqs=1
rcu: 	(detected by 1, t=10503 jiffies, g=29849, q=401 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9193 Comm: syz.0.582 Not tainted 6.12.0-rc4-syzkaller-00261-g850925a8133c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:instrument_atomic_write include/linux/instrumented.h:82 [inline]
RIP: 0010:atomic_set include/linux/atomic/atomic-instrumented.h:67 [inline]
RIP: 0010:taprio_set_budgets+0x203/0x370 net/sched/sch_taprio.c:672
Code: 48 89 e8 31 d2 48 f7 33 48 89 c5 bf 11 00 00 00 4c 89 fe e8 bf 76 c8 f7 49 83 ff 10 0f 87 f6 00 00 00 e8 d0 71 c8 f7 4c 89 f3 <4f> 8d b4 26 80 00 00 00 4c 89 f7 be 04 00 00 00 e8 28 32 32 f8 4c
RSP: 0018:ffffc90000007c30 EFLAGS: 00000006
RAX: ffffffff89cc78a0 RBX: ffff8880330b7800 RCX: ffff888026bf8000
RDX: 0000000000010000 RSI: 0000000000000001 RDI: 0000000000000011
RBP: 0000000000000000 R08: ffffffff89cc7891 R09: 1ffff1100d197c5c
R10: dffffc0000000000 R11: ffffed100d197c5d R12: 0000000000000004
R13: ffff8880330b7808 R14: ffff8880330b7800 R15: 0000000000000001
FS:  00007fe57b7ef6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 000000005724c000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 advance_sched+0x98d/0xca0 net/sched/sch_taprio.c:977
 __run_hrtimer kernel/time/hrtimer.c:1691 [inline]
 __hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1755
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x112/0x420 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x46/0x70 kernel/kcov.c:222
Code: 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 32 <48> 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2
RSP: 0018:ffffc9000c4c79a8 EFLAGS: 00000246
RAX: ffffffff8bc21df9 RBX: 000000000000003c RCX: ffff888026bf8000
RDX: ffffc9000b861000 RSI: 000000000000136b RDI: 000000000000136b
RBP: ffff88814d863388 R08: ffffffff8bc21dc3 R09: 000000000000000c
R10: dffffc0000000000 R11: fffffbfff203a056 R12: dffffc0000000000
R13: ffffc9000c4c7ba0 R14: 0000000000000000 R15: ffff88814d863180
 xas_create+0x1679/0x1ae0 lib/xarray.c:675
 xas_store+0x98/0x1890 lib/xarray.c:788
 __xa_store+0x1e1/0x380 lib/xarray.c:1565
 xa_store+0x34/0x50 lib/xarray.c:1596
 __io_uring_add_tctx_node+0x1b3/0x540 io_uring/tctx.c:122
 io_uring_create+0xbde/0x1360 io_uring/io_uring.c:3690
 io_uring_setup io_uring/io_uring.c:3744 [inline]
 __do_sys_io_uring_setup io_uring/io_uring.c:3771 [inline]
 __se_sys_io_uring_setup+0x2ba/0x330 io_uring/io_uring.c:3765
 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: 0033:0x7fe57a97e719
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:00007fe57b7eefc8 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007fe57ab35f80 RCX: 00007fe57a97e719
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000004072
RBP: 0000000020000080 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000020001280 R14: 0000000000004072 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10501 jiffies! g29849 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:25920 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x18af/0x4bd0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6782
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 9216 Comm: syz.8.577 Not tainted 6.12.0-rc4-syzkaller-00261-g850925a8133c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x46/0x70 kernel/kcov.c:222
Code: 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 32 <48> 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2
RSP: 0018:ffffc9000c4572b8 EFLAGS: 00000246
RAX: ffffffff8188fb4b RBX: 1ffff110170c8ca1 RCX: ffff8880628a3c00
RDX: ffffc9000c6a1000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000c4574c0 R08: ffffffff8188fb1a R09: 1ffffffff2859900
R10: dffffc0000000000 R11: fffffbfff2859901 R12: dffffc0000000000
R13: ffff8880b8646508 R14: ffff8880b873fc80 R15: 0000000000000000
FS:  00007f0f4e3d66c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3091fffc CR3: 0000000060dde000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 csd_lock_wait kernel/smp.c:340 [inline]
 smp_call_function_many_cond+0x1a0b/0x2ca0 kernel/smp.c:884
 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:2085 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2295
 text_poke_flush arch/x86/kernel/alternative.c:2486 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2493
 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:2731 [inline]
 __se_sys_prctl+0xe32/0x3a20 kernel/sys.c:2457
 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: 0033:0x7f0f4d57e719
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:00007f0f4e3d6038 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
RAX: ffffffffffffffda RBX: 00007f0f4d735f80 RCX: 00007f0f4d57e719
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000003e
RBP: 00007f0f4d5f132e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0f4d735f80 R15: 00007ffc6ac01f78
 </TASK>