rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (1 GPs behind) idle=061/1/0x4000000000000000 softirq=33242/33243 fqs=8
(t=10500 jiffies g=60129 q=128)
rcu: rcu_preempt kthread starved for 10483 jiffies! g60129 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:28952 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4910 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x800 kernel/rcu/tree.c:1957
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2130
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 15488 Comm: syz-executor.1 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_region_inline mm/kasan/generic.c:169 [inline]
RIP: 0010:kasan_check_range+0x9/0x180 mm/kasan/generic.c:189
Code: 00 48 89 f2 be f5 00 00 00 e9 53 65 3b 02 0f 1f 00 48 89 f2 be f8 00 00 00 e9 43 65 3b 02 0f 1f 00 48 85 f6 0f 84 70 01 00 00 <49> 89 f9 41 54 44 0f b6 c2 49 01 f1 55 53 0f 82 18 01 00 00 48 b8
RSP: 0018:ffffc90000fd88e8 EFLAGS: 00000002
RAX: dffffc0000000000 RBX: ffff8880b9d32ad0 RCX: ffffffff81621b94
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880b9d32ad0
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8d6ecf17
R10: fffffbfff1add9e2 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88803e850d40 R14: ffffc900027c6e18 R15: 0000000000000008
FS: 00007fc2c14d0700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000007d8a9000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]
rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:330 [inline]
rcu_is_watching+0x54/0xc0 kernel/rcu/tree.c:1121
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123
trace_lock_release include/trace/events/lock.h:58 [inline]
lock_release+0x522/0x720 kernel/locking/lockdep.c:5636
rcu_lock_release include/linux/rcupdate.h:272 [inline]
rcu_read_unlock include/linux/rcupdate.h:720 [inline]
__perf_output_begin kernel/events/ring_buffer.c:259 [inline]
perf_output_begin_forward+0x4de/0xae0 kernel/events/ring_buffer.c:268
__perf_event_output kernel/events/core.c:7489 [inline]
perf_event_output_forward+0xf2/0x280 kernel/events/core.c:7507
__perf_event_overflow+0x13c/0x3d0 kernel/events/core.c:9207
perf_swevent_hrtimer+0x37c/0x3f0 kernel/events/core.c:10597
__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:638
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:330 [inline]
RIP: 0010:rcu_is_watching+0x9/0xc0 kernel/rcu/tree.c:1121
Code: e9 e6 fd ff ff 4c 89 ff e8 e4 02 5a 00 e9 1a ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 53 65 ff 05 b7 d4 9f 7e 52 9c d3 07 48 c7 c3 d0 2a 03 00 83 f8 07 89 c5 0f 87 84 00 00
RSP: 0018:ffffc900027c6ec0 EFLAGS: 00000282
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff815bbc01
RDX: fffffbfff1add9e3 RSI: 0000000000000008 RDI: ffffffff8d6ecf10
RBP: 1ffff920004f8ddf R08: 0000000000000000 R09: ffffffff8d6ecf17
R10: fffffbfff1add9e2 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123
trace_lock_release include/trace/events/lock.h:58 [inline]
lock_release+0x522/0x720 kernel/locking/lockdep.c:5636
rcu_lock_release include/linux/rcupdate.h:272 [inline]
rcu_read_unlock include/linux/rcupdate.h:720 [inline]
filemap_map_pages+0x806/0x1880 mm/filemap.c:3338
do_fault_around mm/memory.c:4162 [inline]
do_read_fault mm/memory.c:4177 [inline]
do_fault mm/memory.c:4312 [inline]
handle_pte_fault mm/memory.c:4570 [inline]
__handle_mm_fault+0x288a/0x5280 mm/memory.c:4705
handle_mm_fault+0x1c8/0x790 mm/memory.c:4803
faultin_page mm/gup.c:937 [inline]
__get_user_pages+0x503/0xf80 mm/gup.c:1158
__get_user_pages_locked mm/gup.c:1343 [inline]
get_user_pages_unlocked+0x1b3/0x760 mm/gup.c:2067
hva_to_pfn_slow arch/x86/kvm/../../../virt/kvm/kvm_main.c:2269 [inline]
hva_to_pfn+0x1bf/0xdd0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2401
__gfn_to_pfn_memslot+0x229/0x420 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2460
kvm_faultin_pfn+0x171/0xbc0 arch/x86/kvm/mmu/mmu.c:3942
direct_page_fault+0xd22/0x2320 arch/x86/kvm/mmu/mmu.c:3992
kvm_mmu_do_page_fault arch/x86/kvm/mmu.h:127 [inline]
kvm_mmu_page_fault+0x17e/0x17f0 arch/x86/kvm/mmu/mmu.c:5287
handle_ept_violation+0x29c/0x6e0 arch/x86/kvm/vmx/vmx.c:5325
__vmx_handle_exit arch/x86/kvm/vmx/vmx.c:6038 [inline]
vmx_handle_exit+0x4be/0x1950 arch/x86/kvm/vmx/vmx.c:6055
vcpu_enter_guest+0x2a90/0x4410 arch/x86/kvm/x86.c:9633
vcpu_run arch/x86/kvm/x86.c:9700 [inline]
kvm_arch_vcpu_ioctl_run+0x4fc/0x21a0 arch/x86/kvm/x86.c:9895
kvm_vcpu_ioctl+0x570/0xf30 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3779
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
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: 0033:0x7fc2c3f5aae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc2c14d0188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc2c406df60 RCX: 00007fc2c3f5aae9
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006
RBP: 00007fc2c3fb4f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeb97df36f R14: 00007fc2c14d0300 R15: 0000000000022000
NMI backtrace for cpu 0
CPU: 0 PID: 15474 Comm: syz-executor.4 Not tainted 5.15.0-syzkaller #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:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3880 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2599
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
__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:638
RIP: 0010:vmx_do_interrupt_nmi_irqoff+0x10/0x20 arch/x86/kvm/vmx/vmenter.S:327
Code: 41 5b 41 5a 41 59 41 58 5e 5f 5a 59 58 5d c3 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 48 83 e4 f0 6a 18 55 9c 6a 10 ff d7 <48> 89 ec 5d c3 cc cc cc cc cc cc cc cc cc cc cc 41 57 48 8d 47 08
RSP: 0018:ffffc90002257b38 EFLAGS: 00000086
RAX: 0000000000000000 RBX: ffff888081a5c940 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff89400bf0
RBP: ffffc90002257b38 R08: 0000000080000000 R09: ffff888081a5cba7
R10: ffffffff811e9c2c R11: 0000000000000000 R12: 0000000000000bf0
R13: 0000000089400000 R14: 0000000000000000 R15: ffff888081a5c970
handle_interrupt_nmi_irqoff arch/x86/kvm/vmx/vmx.c:6347 [inline]
handle_external_interrupt_irqoff arch/x86/kvm/vmx/vmx.c:6377 [inline]
vmx_handle_exit_irqoff arch/x86/kvm/vmx/vmx.c:6388 [inline]
vmx_handle_exit_irqoff+0x4d2/0x750 arch/x86/kvm/vmx/vmx.c:6380
vcpu_enter_guest+0x2698/0x4410 arch/x86/kvm/x86.c:9582
vcpu_run arch/x86/kvm/x86.c:9700 [inline]
kvm_arch_vcpu_ioctl_run+0x4fc/0x21a0 arch/x86/kvm/x86.c:9895
kvm_vcpu_ioctl+0x570/0xf30 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3779
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
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: 0033:0x7f18bdd15ae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f18bb28b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f18bde28f60 RCX: 00007f18bdd15ae9
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006
RBP: 00007f18bdd6ff25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe32aa0c7f R14: 00007f18bb28b300 R15: 0000000000022000
sched: RT throttling activated
----------------
Code disassembly (best guess):
0: 00 48 89 add %cl,-0x77(%rax)
3: f2 be f5 00 00 00 repnz mov $0xf5,%esi
9: e9 53 65 3b 02 jmpq 0x23b6561
e: 0f 1f 00 nopl (%rax)
11: 48 89 f2 mov %rsi,%rdx
14: be f8 00 00 00 mov $0xf8,%esi
19: e9 43 65 3b 02 jmpq 0x23b6561
1e: 0f 1f 00 nopl (%rax)
21: 48 85 f6 test %rsi,%rsi
24: 0f 84 70 01 00 00 je 0x19a
* 2a: 49 89 f9 mov %rdi,%r9 <-- trapping instruction
2d: 41 54 push %r12
2f: 44 0f b6 c2 movzbl %dl,%r8d
33: 49 01 f1 add %rsi,%r9
36: 55 push %rbp
37: 53 push %rbx
38: 0f 82 18 01 00 00 jb 0x156
3e: 48 rex.W
3f: b8 .byte 0xb8