rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=859/1/0x4000000000000000 softirq=160369/160370 fqs=0
(detected by 1, t=10505 jiffies, g=230269, q=113)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7929 Comm: syz-executor.4 Not tainted 5.18.0-rc3-syzkaller-00223-g6fc2586d23b5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rcu_rnp_online_cpus kernel/rcu/tree.c:222 [inline]
RIP: 0010:rcu_rdp_cpu_online kernel/rcu/tree.c:232 [inline]
RIP: 0010:rcu_lockdep_current_cpu_online kernel/rcu/tree.c:1193 [inline]
RIP: 0010:rcu_lockdep_current_cpu_online+0xc7/0x140 kernel/rcu/tree.c:1177
Code: fa 48 c1 ea 03 80 3c 02 00 75 72 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 18 48 8d 7b 70 48 89 fa 48 c1 ea 03 80 3c 02 00 75 5a <48> 8b 53 70 b8 01 00 00 00 48 85 d5 74 0c 65 ff 0d b4 f7 9e 7e 74
RSP: 0018:ffffc90000007e18 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffffff8bd88cc0 RCX: 0000000000000000
RDX: 1ffffffff17b11a6 RSI: 0000000000010003 RDI: ffffffff8bd88d30
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff81676f88 R11: 0000000000000000 R12: 0000000000000001
R13: ffff8880b9c2a6c0 R14: ffff8880b9c2a5c0 R15: 0000000000000001
FS: 000055555728f400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000040 CR3: 00000000755b0000 CR4: 00000000003506f0
Call Trace:
rcu_read_lock_held_common kernel/rcu/update.c:112 [inline]
rcu_read_lock_held_common kernel/rcu/update.c:102 [inline]
rcu_read_lock_sched_held+0x25/0x70 kernel/rcu/update.c:123
trace_hrtimer_cancel include/trace/events/timer.h:290 [inline]
debug_deactivate kernel/time/hrtimer.c:482 [inline]
__run_hrtimer kernel/time/hrtimer.c:1653 [inline]
__hrtimer_run_queues+0xaac/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__syscall_enter_from_user_work kernel/entry/common.c:89 [inline]
RIP: 0010:syscall_enter_from_user_mode+0x2b/0x70 kernel/entry/common.c:110
Code: 54 49 89 f4 55 48 89 fd 48 8b 7c 24 10 e8 ed f5 ff ff eb 27 eb 2b e8 b4 1d 15 f8 e8 2f 1a 15 f8 fb 65 48 8b 04 25 00 70 02 00 <48> 8b 70 08 40 f6 c6 3f 75 19 4c 89 e0 5d 41 5c c3 eb 1b 0f 0b eb
RSP: 0018:ffffc90003017f28 EFLAGS: 00000206
RAX: ffff888074cb0180 RBX: 0000000000000000 RCX: 1ffffffff1b6ff09
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003017f58 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817eae28 R11: 0000000000000000 R12: 0000000000000003
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
do_syscall_64+0x16/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1c50c3bd2b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffd80799ff0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f1c50c3bd2b
RDX: 00007f1c50da0340 RSI: ffffffffffffffff RDI: 0000000000000004
RBP: 00007f1c50d9d960 R08: 0000000000000000 R09: 00007f1c50da0348
R10: 00007ffd8079a0f0 R11: 0000000000000293 R12: 0000000000216b46
R13: 00007ffd8079a0f0 R14: 00007f1c50d9bf60 R15: 0000000000000032
rcu: rcu_preempt kthread starved for 10505 jiffies! g230269 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:28560 pid: 16 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1884
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1971
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2144
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 1
CPU: 1 PID: 7934 Comm: syz-executor.5 Not tainted 5.18.0-rc3-syzkaller-00223-g6fc2586d23b5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:490
print_other_cpu_stall kernel/rcu/tree_stall.h:595 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:741 [inline]
rcu_pending kernel/rcu/tree.c:3923 [inline]
rcu_sched_clock_irq+0x1f7c/0x2150 kernel/rcu/tree.c:2625
update_process_times+0x16d/0x200 kernel/time/timer.c:1788
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1473
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:csd_lock_wait kernel/smp.c:411 [inline]
RIP: 0010:smp_call_function_many_cond+0x499/0x1110 kernel/smp.c:969
Code: 01 89 ee e8 39 d2 0b 00 85 ed 74 47 48 8b 04 24 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 fc 83 c5 03 e8 f9 cf 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 21 0a 00 00 8b 43 08 31
RSP: 0018:ffffc90002fb75e0 EFLAGS: 00000246
RAX: 0000000000040000 RBX: ffff8880b9c44fc0 RCX: ffffc9001362a000
RDX: 0000000000040000 RSI: ffffffff816c9537 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff816c955d R11: 0000000000000000 R12: ffffed10173889f9
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1135
__purge_vmap_area_lazy+0x1f6/0x1c50 mm/vmalloc.c:1701
_vm_unmap_aliases.part.0+0x3f0/0x500 mm/vmalloc.c:2127
_vm_unmap_aliases mm/vmalloc.c:2101 [inline]
vm_unmap_aliases+0x45/0x50 mm/vmalloc.c:2150
change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1743
change_page_attr_clear arch/x86/mm/pat/set_memory.c:1800 [inline]
set_memory_ro+0x78/0xa0 arch/x86/mm/pat/set_memory.c:1946
bpf_prog_lock_ro include/linux/filter.h:883 [inline]
bpf_prog_select_runtime+0x504/0x640 kernel/bpf/core.c:2221
bpf_prog_load+0xfe6/0x2250 kernel/bpf/syscall.c:2355
__sys_bpf+0x674/0x55d0 kernel/bpf/syscall.c:4663
__do_sys_bpf kernel/bpf/syscall.c:4767 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4765 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4765
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f24038890e9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2404a99168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f240399bf60 RCX: 00007f24038890e9
RDX: 0000000000000014 RSI: 0000000020000440 RDI: 0000000000000005
RBP: 00007f24038e308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffbc65e28f R14: 00007f2404a99300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: fa cli
1: 48 c1 ea 03 shr $0x3,%rdx
5: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
9: 75 72 jne 0x7d
b: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
12: fc ff df
15: 48 8b 5b 18 mov 0x18(%rbx),%rbx
19: 48 8d 7b 70 lea 0x70(%rbx),%rdi
1d: 48 89 fa mov %rdi,%rdx
20: 48 c1 ea 03 shr $0x3,%rdx
24: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
28: 75 5a jne 0x84
* 2a: 48 8b 53 70 mov 0x70(%rbx),%rdx <-- trapping instruction
2e: b8 01 00 00 00 mov $0x1,%eax
33: 48 85 d5 test %rdx,%rbp
36: 74 0c je 0x44
38: 65 ff 0d b4 f7 9e 7e decl %gs:0x7e9ef7b4(%rip) # 0x7e9ef7f3
3f: 74 .byte 0x74