rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (10500 ticks this GP) idle=711/1/0x4000000000000000 softirq=26391/26391 fqs=5245
(t=10502 jiffies g=41649 q=912)
NMI backtrace for cpu 1
CPU: 1 PID: 7620 Comm: syz-executor.2 Not tainted 5.17.0-rc1-syzkaller-00436-g24f4db1f3a27 #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+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x22d/0x390 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+0x1e33/0x2bc0 kernel/rcu/tree.c:2617
update_process_times+0x197/0x200 kernel/time/timer.c:1785
tick_sched_handle kernel/time/tick-sched.c:226 [inline]
tick_sched_timer+0x27d/0x420 kernel/time/tick-sched.c:1428
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x4cb/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x270 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:__rdmsr arch/x86/include/asm/msr.h:93 [inline]
RIP: 0010:native_read_msr arch/x86/include/asm/msr.h:127 [inline]
RIP: 0010:msr_read_counter arch/x86/events/msr.c:225 [inline]
RIP: 0010:msr_event_update+0xa5/0x1e0 arch/x86/events/msr.c:240
Code: 08 80 3c 28 00 74 08 4c 89 ff e8 66 0e cf 00 49 8b 2f 31 ff 48 89 ee e8 69 82 83 00 48 85 ed 74 34 e8 af 7d 83 00 89 e9 0f 32 <48> 89 d3 48 c1 e3 20 48 09 c3 66 90 eb 31 e8 98 7d 83 00 89 ef 48
RSP: 0018:ffffc90006d06b50 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880339fd1d0 RCX: 0000000000000034
RDX: 0000000000000000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000034 R08: ffffffff810229d7 R09: ffffed100673fa77
R10: ffffed100673fa77 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880339fd3b0 R14: dffffc0000000000 R15: ffff8880339fd348
perf_output_read_group kernel/events/core.c:6989 [inline]
perf_output_read+0xebf/0x13b0 kernel/events/core.c:7028
perf_output_sample+0x338/0x23e0 kernel/events/core.c:7075
__perf_event_output kernel/events/core.c:7560 [inline]
perf_event_output_forward+0x1e1/0x2c0 kernel/events/core.c:7574
__perf_event_overflow+0x1f8/0x380 kernel/events/core.c:9274
do_perf_sw_event kernel/events/core.c:9491 [inline]
___perf_sw_event+0x465/0x640 kernel/events/core.c:9522
__perf_sw_event+0x13f/0x270 kernel/events/core.c:9534
handle_mm_fault+0x2eef/0x39e0 mm/memory.c:4817
do_user_addr_fault+0x8c4/0x1060 arch/x86/mm/fault.c:1397
handle_page_fault arch/x86/mm/fault.c:1484 [inline]
exc_page_fault+0xa1/0x1e0 arch/x86/mm/fault.c:1540
asm_exc_page_fault+0x1e/0x30
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x40
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01 cb 83 fa 40 0f 82 60 ff ff ff 89 d1 a4 31 c0 0f 01 ca c3 89 ca eb 06 66 0f 1f 44 00 00 83 f8 12 74
RSP: 0018:ffffc90006d078b8 EFLAGS: 00050206
RAX: ffffffff84119801 RBX: ffff888033b50000 RCX: 0000000000006fcb
RDX: 0000000000008000 RSI: 0000000020f4e000 RDI: ffff888033b51035
RBP: ffffc90006d07a10 R08: dffffc0000000000 R09: ffffed100676b000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000008000
R13: 00007ffffffff000 R14: 0000000020f4cfcb R15: ffffc90006d07e68
copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
raw_copy_from_user arch/x86/include/asm/uaccess_64.h:52 [inline]
copyin lib/iov_iter.c:166 [inline]
_copy_from_iter+0x33c/0x1170 lib/iov_iter.c:765
copy_from_iter include/linux/uio.h:171 [inline]
copy_from_iter_full include/linux/uio.h:177 [inline]
skb_do_copy_data_nocache include/net/sock.h:2189 [inline]
skb_copy_to_page_nocache include/net/sock.h:2215 [inline]
tcp_sendmsg_locked+0x1bed/0x48a0 net/ipv4/tcp.c:1335
tcp_sendmsg+0x2c/0x40 net/ipv4/tcp.c:1441
sock_sendmsg_nosec net/socket.c:705 [inline]
sock_sendmsg net/socket.c:725 [inline]
__sys_sendto+0x42e/0x5b0 net/socket.c:2040
__do_sys_sendto net/socket.c:2052 [inline]
__se_sys_sendto net/socket.c:2048 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2048
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f23e598e059
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:00007f23e4303168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f23e5aa0f60 RCX: 00007f23e598e059
RDX: ffffffffffffffef RSI: 0000000020d7cfcb RDI: 0000000000000006
RBP: 00007f23e59e808d R08: 0000000000000000 R09: 0000000000000053
R10: 0000000011000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffff106fecf R14: 00007f23e4303300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 08 80 3c 28 00 74 or %al,0x7400283c(%rax)
6: 08 4c 89 ff or %cl,-0x1(%rcx,%rcx,4)
a: e8 66 0e cf 00 callq 0xcf0e75
f: 49 8b 2f mov (%r15),%rbp
12: 31 ff xor %edi,%edi
14: 48 89 ee mov %rbp,%rsi
17: e8 69 82 83 00 callq 0x838285
1c: 48 85 ed test %rbp,%rbp
1f: 74 34 je 0x55
21: e8 af 7d 83 00 callq 0x837dd5
26: 89 e9 mov %ebp,%ecx
28: 0f 32 rdmsr
* 2a: 48 89 d3 mov %rdx,%rbx <-- trapping instruction
2d: 48 c1 e3 20 shl $0x20,%rbx
31: 48 09 c3 or %rax,%rbx
34: 66 90 xchg %ax,%ax
36: eb 31 jmp 0x69
38: e8 98 7d 83 00 callq 0x837dd5
3d: 89 ef mov %ebp,%edi
3f: 48 rex.W