rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=8cf/1/0x4000000000000000 softirq=65818/65820 fqs=0
(detected by 0, t=10502 jiffies, g=101045, q=16)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 14358 Comm: syz-executor.4 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:lock_is_held_type+0x2/0x140 kernel/locking/lockdep.c:5667
Code: c6 80 3a ac 89 48 c7 c7 00 37 ac 89 89 44 24 04 e8 75 78 bb ff 0f 0b 8b 44 24 04 eb bd 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 <41> 56 41 55 41 bd ff ff ff ff 41 54 55 53 48 83 ec 08 8b 0d d2 1a
RSP: 0018:ffffc90000dc0e30 EFLAGS: 00000046
RAX: 0000000000010002 RBX: ffff888022771b40 RCX: 0000000000000000
RDX: ffff88807b2a3a00 RSI: 00000000ffffffff RDI: ffff8880b9d2a618
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8167b78c R11: 0000000000000000 R12: 17a03d332f407a66
R13: ffff8880b9d2a700 R14: ffff8880b9d2a600 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff66248698 CR3: 000000000b88e000 CR4: 0000000000350ee0
Call Trace:
lock_is_held include/linux/lockdep.h:283 [inline]
__run_hrtimer kernel/time/hrtimer.c:1651 [inline]
__hrtimer_run_queues+0x95a/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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 9a cf 0d f8 48 89 ef e8 52 45 0e f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 93 00 01 f8 65 8b 05 7c 01 b3 76 85 c0 74 0a 5b 5d c3 e8 30 2a
RSP: 0018:ffffc900029af4d8 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1ffbbf6
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffffff90748d58 R08: 0000000000000001 R09: ffffffff8ffcaa37
R10: 0000000000000001 R11: 0000000000000001 R12: 000000000000000f
R13: 000000000000000f R14: dead000000000100 R15: dffffc0000000000
__debug_check_no_obj_freed lib/debugobjects.c:1002 [inline]
debug_check_no_obj_freed+0x20c/0x420 lib/debugobjects.c:1023
free_pages_prepare mm/page_alloc.c:1358 [inline]
free_pcp_prepare+0x2ae/0x870 mm/page_alloc.c:1404
free_unref_page_prepare mm/page_alloc.c:3325 [inline]
free_unref_page+0x19/0x690 mm/page_alloc.c:3404
release_pages+0x748/0x1220 mm/swap.c:956
tlb_batch_pages_flush mm/mmu_gather.c:50 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:243 [inline]
tlb_flush_mmu+0xe9/0x6b0 mm/mmu_gather.c:250
zap_pte_range mm/memory.c:1441 [inline]
zap_pmd_range mm/memory.c:1490 [inline]
zap_pud_range mm/memory.c:1519 [inline]
zap_p4d_range mm/memory.c:1540 [inline]
unmap_page_range+0x1d1d/0x2a30 mm/memory.c:1561
unmap_single_vma+0x198/0x310 mm/memory.c:1606
unmap_vmas+0x16b/0x2f0 mm/memory.c:1638
exit_mmap+0x201/0x670 mm/mmap.c:3178
__mmput+0x122/0x4b0 kernel/fork.c:1114
mmput+0x56/0x60 kernel/fork.c:1135
exit_mm kernel/exit.c:507 [inline]
do_exit+0xa3c/0x2a30 kernel/exit.c:793
do_group_exit+0xd2/0x2f0 kernel/exit.c:935
get_signal+0x4b0/0x28c0 kernel/signal.c:2862
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fcb0d12ffe9
Code: Unable to access opcode bytes at RIP 0x7fcb0d12ffbf.
RSP: 002b:00007fcb0baa5218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fcb0d242f68 RCX: 00007fcb0d12ffe9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fcb0d242f6c
RBP: 00007fcb0d242f60 R08: 00007fff709c0080 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fcb0d242f6c
R13: 00007fff70983bbf R14: 00007fcb0baa5300 R15: 0000000000022000
rcu: rcu_preempt kthread starved for 10502 jiffies! g101045 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:28736 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1963
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2136
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 0
CPU: 0 PID: 14354 Comm: syz-executor.0 Not tainted 5.16.0-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:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 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:458
print_other_cpu_stall kernel/rcu/tree_stall.h:563 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:706 [inline]
rcu_pending kernel/rcu/tree.c:3919 [inline]
rcu_sched_clock_irq+0x1f7c/0x2150 kernel/rcu/tree.c:2617
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:1428
__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:__sanitizer_cov_trace_pc+0x4c/0x60 kernel/kcov.c:205
Code: 0e 85 c9 74 35 8b 82 a4 15 00 00 85 c0 74 2b 8b 82 80 15 00 00 83 f8 02 75 20 48 8b 8a 88 15 00 00 8b 92 84 15 00 00 48 8b 01 <48> 83 c0 01 48 39 c2 76 07 48 89 34 c1 48 89 01 c3 0f 1f 00 41 55
RSP: 0018:ffffc9000298f2f8 EFLAGS: 00000246
RAX: 000000000003ffff RBX: ffff8880b9d3e9c0 RCX: ffffc90010694000
RDX: 0000000000040000 RSI: ffffffff816cd650 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff816cd676 R11: 0000000000000000 R12: ffffed10173a7d39
R13: 0000000000000001 R14: ffff8880b9d3e9c8 R15: 0000000000000001
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:440 [inline]
smp_call_function_many_cond+0x450/0xc20 kernel/smp.c:969
on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1135
__purge_vmap_area_lazy+0x1f6/0x1c50 mm/vmalloc.c:1689
_vm_unmap_aliases.part.0+0x3f0/0x500 mm/vmalloc.c:2113
_vm_unmap_aliases mm/vmalloc.c:2087 [inline]
vm_unmap_aliases+0x45/0x50 mm/vmalloc.c:2136
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_jit_binary_lock_ro include/linux/filter.h:889 [inline]
bpf_int_jit_compile+0xe92/0x1240 arch/x86/net/bpf_jit_comp.c:2382
jit_subprogs kernel/bpf/verifier.c:12958 [inline]
fixup_call_args kernel/bpf/verifier.c:13044 [inline]
bpf_check+0x8fe9/0xbac0 kernel/bpf/verifier.c:14370
bpf_prog_load+0xf55/0x21f0 kernel/bpf/syscall.c:2344
__sys_bpf+0x68a/0x5970 kernel/bpf/syscall.c:4634
__do_sys_bpf kernel/bpf/syscall.c:4738 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4736 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4736
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: 0033:0x7f1dc1dc7fe9
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:00007f1dc073d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f1dc1edaf60 RCX: 00007f1dc1dc7fe9
RDX: 0000000000000070 RSI: 0000000020000440 RDI: 0000000000000005
RBP: 00007f1dc1e2208d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe852a536f R14: 00007f1dc073d300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: c6 80 3a ac 89 48 c7 movb $0xc7,0x4889ac3a(%rax)
7: c7 00 37 ac 89 89 movl $0x8989ac37,(%rax)
d: 44 24 04 rex.R and $0x4,%al
10: e8 75 78 bb ff callq 0xffbb788a
15: 0f 0b ud2
17: 8b 44 24 04 mov 0x4(%rsp),%eax
1b: eb bd jmp 0xffffffda
1d: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1)
24: 00 00 00 00
28: 41 57 push %r15
* 2a: 41 56 push %r14 <-- trapping instruction
2c: 41 55 push %r13
2e: 41 bd ff ff ff ff mov $0xffffffff,%r13d
34: 41 54 push %r12
36: 55 push %rbp
37: 53 push %rbx
38: 48 83 ec 08 sub $0x8,%rsp
3c: 8b .byte 0x8b
3d: 0d .byte 0xd
3e: d2 1a rcrb %cl,(%rdx)