rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (18 ticks this GP) idle=aedc/1/0x4000000000000000 softirq=11546/11554 fqs=4
rcu: 	(detected by 0, t=10502 jiffies, g=15713, q=163 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5158 Comm: kworker/1:6 Not tainted 6.10.0-rc2-syzkaller-00315-gdc772f8237f9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline]
RIP: 0010:raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:457 [inline]
RIP: 0010:atomic_read include/linux/atomic/atomic-instrumented.h:33 [inline]
RIP: 0010:queued_spin_is_locked include/asm-generic/qspinlock.h:57 [inline]
RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:101 [inline]
RIP: 0010:do_raw_spin_unlock+0x68/0x230 kernel/locking/spinlock_debug.c:141
Code: ad de 0f 85 75 01 00 00 be 04 00 00 00 48 89 df e8 dd 77 7d 00 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 6c 01 00 00 8b
RSP: 0018:ffffc90000a18d50 EFLAGS: 00000802
RAX: dffffc0000000000 RBX: ffff888015fb32e8 RCX: ffffffff816c47d3
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888015fb32e8
RBP: ffff88802d87f810 R08: 0000000000000000 R09: ffffed1002bf665d
R10: ffff888015fb32eb R11: 0000000000000004 R12: 0000000000000002
R13: ffff88802d87f800 R14: ffff888015fb3340 R15: ffff88802d87f400
FS:  0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3253b000 CR3: 000000007c3d6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_unlock+0x1e/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 advance_sched+0x611/0xc60 net/sched/sch_taprio.c:981
 __run_hrtimer kernel/time/hrtimer.c:1687 [inline]
 __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1751
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1813
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x90/0xb0 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:on_stack arch/x86/include/asm/stacktrace.h:60 [inline]
RIP: 0010:stack_access_ok+0x1f5/0x270 arch/x86/kernel/unwind_orc.c:393
Code: 3c 24 4c 39 fd 0f 83 d3 fe ff ff e8 f5 0e 51 00 48 8b 44 24 08 48 01 e8 49 39 c6 48 89 04 24 0f 83 b9 fe ff ff e8 db 0e 51 00 <48> 8b 04 24 41 be 01 00 00 00 49 39 c7 0f 83 ec fe ff ff e9 9c fe
RSP: 0018:ffffc90003a07608 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffc90003a07728 RCX: ffffffff813cd4b6
RDX: ffff88802af63c00 RSI: ffffffff813cd615 RDI: 0000000000000005
RBP: ffffc90003a077c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000004 R12: ffffc90003a07730
R13: ffffc90003a07738 R14: ffffc90003a00000 R15: ffffc90003a08000
 deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
 unwind_next_frame+0xd9b/0x23a0 arch/x86/kernel/unwind_orc.c:585
 __unwind_start+0x5aa/0x880 arch/x86/kernel/unwind_orc.c:760
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0xb2/0x170 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slub.c:4122 [inline]
 kmalloc_node_track_caller_noprof+0x20f/0x430 mm/slub.c:4142
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:597
 __alloc_skb+0x164/0x380 net/core/skbuff.c:666
 alloc_skb include/linux/skbuff.h:1308 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:748 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline]
 nsim_dev_trap_report_work+0x2a4/0xc80 drivers/net/netdevsim/dev.c:850
 process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: rcu_preempt kthread starved for 10490 jiffies! g15713 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:27872 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6837
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2202
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 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: 0 PID: 5860 Comm: syz-executor.4 Not tainted 6.10.0-rc2-syzkaller-00315-gdc772f8237f9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x33/0x60 kernel/kcov.c:207
Code: f4 75 7e 65 8b 05 45 f4 75 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 1c 16 00 00 85 c0 74 2b 8b 82 f8 15 00 00 <83> f8 02 75 20 48 8b 8a 00 16 00 00 8b 92 fc 15 00 00 48 8b 01 48
RSP: 0018:ffffc900032df5e8 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff8880b9344980 RCX: ffffffff8181ad5b
RDX: ffff8880200ada00 RSI: ffffffff8181ad35 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffed1017268931
R13: 0000000000000001 R14: ffff8880b9344988 R15: ffff8880b923fdc0
FS:  00007f169dff06c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32423000 CR3: 000000007ce90000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline]
 cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline]
 csd_lock_wait kernel/smp.c:311 [inline]
 smp_call_function_many_cond+0x4e5/0x1420 kernel/smp.c:855
 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023
 __purge_vmap_area_lazy+0x4f5/0xc10 mm/vmalloc.c:2269
 _vm_unmap_aliases+0x29c/0xbd0 mm/vmalloc.c:2867
 change_page_attr_set_clr+0x24c/0x490 arch/x86/mm/pat/set_memory.c:1882
 change_page_attr_clear arch/x86/mm/pat/set_memory.c:1930 [inline]
 set_memory_ro+0x7c/0xb0 arch/x86/mm/pat/set_memory.c:2116
 bpf_prog_lock_ro include/linux/filter.h:929 [inline]
 bpf_prog_select_runtime+0x59d/0x6f0 kernel/bpf/core.c:2423
 bpf_prog_load+0xf0f/0x2660 kernel/bpf/syscall.c:2912
 __sys_bpf+0x8e9/0x49a0 kernel/bpf/syscall.c:5688
 __do_sys_bpf kernel/bpf/syscall.c:5795 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5793 [inline]
 __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5793
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f169d27cf69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f169dff00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f169d3b4050 RCX: 00007f169d27cf69
RDX: 0000000000000090 RSI: 00000000200000c0 RDI: 0000000000000005
RBP: 00007f169d2da6fe R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f169d3b4050 R15: 00007ffca12e8c68
 </TASK>