rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (1487 ticks this GP) idle=113/1/0x4000000000000000 softirq=450757/450757 fqs=8
(t=10502 jiffies g=476761 q=37457)
NMI backtrace for cpu 1
CPU: 1 PID: 2428 Comm: syz-executor.5 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__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_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:604 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:688 [inline]
rcu_pending kernel/rcu/tree.c:3919 [inline]
rcu_sched_clock_irq.cold+0x5c/0x759 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
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_region_inline mm/kasan/generic.c:169 [inline]
RIP: 0010:kasan_check_range+0x9/0x180 mm/kasan/generic.c:189
Code: b6 f5 bf 00 08 00 00 89 43 0c e8 e2 e4 ff ff 89 43 08 5b 5d 41 5c c3 66 2e 0f 1f 84 00 00 00 00 00 48 85 f6 0f 84 3c 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:ffffc9008314f5b0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81ad1a5b
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0002338a00
RBP: ffffea0002338a00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffea0002338a08
R13: ffff88804a9a4950 R14: dffffc0000000000 R15: 000000002012b000
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
PageCompound include/linux/page-flags.h:242 [inline]
page_mapcount include/linux/mm.h:836 [inline]
zap_pte_range mm/memory.c:1358 [inline]
zap_pmd_range mm/memory.c:1467 [inline]
zap_pud_range mm/memory.c:1496 [inline]
zap_p4d_range mm/memory.c:1517 [inline]
unmap_page_range+0xf1b/0x29f0 mm/memory.c:1538
unmap_single_vma+0x198/0x310 mm/memory.c:1583
unmap_vmas+0x16b/0x2f0 mm/memory.c:1615
exit_mmap+0x1d0/0x630 mm/mmap.c:3170
__mmput+0x122/0x4b0 kernel/fork.c:1113
mmput+0x56/0x60 kernel/fork.c:1134
dup_mm+0xd73/0x13e0 kernel/fork.c:1466
copy_mm kernel/fork.c:1502 [inline]
copy_process+0x6fed/0x75a0 kernel/fork.c:2191
kernel_clone+0xe7/0xab0 kernel/fork.c:2582
__do_sys_clone3+0x1dd/0x2f0 kernel/fork.c:2857
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: 0033:0x7f842f9e8eb9
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:00007f842e31c168 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f842fafc100 RCX: 00007f842f9e8eb9
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000600
RBP: 00007f842fa4308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f843002fb1f R14: 00007f842e31c300 R15: 0000000000022000
</TASK>
----------------
Code disassembly (best guess):
0: b6 f5 mov $0xf5,%dh
2: bf 00 08 00 00 mov $0x800,%edi
7: 89 43 0c mov %eax,0xc(%rbx)
a: e8 e2 e4 ff ff callq 0xffffe4f1
f: 89 43 08 mov %eax,0x8(%rbx)
12: 5b pop %rbx
13: 5d pop %rbp
14: 41 5c pop %r12
16: c3 retq
17: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
1e: 00 00 00
21: 48 85 f6 test %rsi,%rsi
24: 0f 84 3c 01 00 00 je 0x166
* 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