rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (10500 ticks this GP) idle=8a5/1/0x4000000000000000 softirq=93476/93476 fqs=5244
(t=10502 jiffies g=161189 q=679)
NMI backtrace for cpu 1
CPU: 1 PID: 9981 Comm: syz-executor.0 Not tainted 5.17.0-rc2-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_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
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__rdmsr arch/x86/include/asm/msr.h:98 [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+0xe3/0x240 arch/x86/events/msr.c:240
Code: 0f 85 4c 01 00 00 4d 8b b5 78 01 00 00 31 ff 4c 89 f6 e8 10 c3 75 00 4d 85 f6 0f 84 71 ff ff ff e8 72 c0 75 00 44 89 f1 0f 32 <48> c1 e2 20 48 89 d3 48 09 c3 66 90 e8 5c c0 75 00 e9 65 ff ff ff
RSP: 0018:ffffc9000ad570d0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000ad57460 RCX: 0000000000000034
RDX: 0000000000000000 RSI: ffffffff8101e48e RDI: 0000000000000003
RBP: ffff888023a8e838 R08: 0000000000000000 R09: ffff888023a8e83f
R10: ffffffff8101e480 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888023a8e658 R14: 0000000000000034 R15: ffffed1004751d07
perf_output_read_group kernel/events/core.c:7004 [inline]
perf_output_read+0xf02/0x1310 kernel/events/core.c:7043
perf_output_sample+0xd12/0x1d40 kernel/events/core.c:7090
__perf_event_output kernel/events/core.c:7575 [inline]
perf_event_output_forward+0x119/0x280 kernel/events/core.c:7589
__perf_event_overflow+0x13c/0x3d0 kernel/events/core.c:9289
perf_swevent_overflow kernel/events/core.c:9365 [inline]
perf_swevent_event+0x347/0x550 kernel/events/core.c:9393
do_perf_sw_event kernel/events/core.c:9506 [inline]
___perf_sw_event+0x31a/0x570 kernel/events/core.c:9537
__perf_sw_event+0x54/0x130 kernel/events/core.c:9549
perf_sw_event include/linux/perf_event.h:1178 [inline]
mm_account_fault mm/memory.c:4766 [inline]
handle_mm_fault+0x5ef/0x790 mm/memory.c:4817
do_user_addr_fault+0x489/0x11c0 arch/x86/mm/fault.c:1397
handle_page_fault arch/x86/mm/fault.c:1484 [inline]
exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1540
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x40 arch/x86/lib/copy_user_64.S:196
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:ffffc9000ad579a0 EFLAGS: 00050206
RAX: 0000000000000001 RBX: 0000000000008000 RCX: 0000000000004fcb
RDX: 0000000000008000 RSI: 0000000020ea0000 RDI: ffff88804a65b035
RBP: ffff88804a658000 R08: 0000000000000001 R09: ffff88804a65ffff
R10: ffffed10094cbfff R11: 0000000000000000 R12: 0000000020e9cfcb
R13: 0000000020ea4fcb R14: 0000000000000000 R15: ffffc9000ad57d70
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.part.0+0xe4/0x110 lib/iov_iter.c:166
copyin lib/iov_iter.c:765 [inline]
_copy_from_iter+0x2a3/0x1410 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+0x12f3/0x3050 net/ipv4/tcp.c:1335
tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1441
inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819
sock_sendmsg_nosec net/socket.c:705 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:725
__sys_sendto+0x21c/0x320 net/socket.c:2040
__do_sys_sendto net/socket.c:2052 [inline]
__se_sys_sendto net/socket.c:2048 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2048
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: 0033:0x7f2f78778059
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:00007f2f770ed168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f2f7888af60 RCX: 00007f2f78778059
RDX: ffffffffffffffef RSI: 0000000020d7cfcb RDI: 0000000000000006
RBP: 00007f2f787d208d R08: 0000000000000000 R09: 0000000000000053
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcca3dc28f R14: 00007f2f770ed300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 0f 85 4c 01 00 00 jne 0x152
6: 4d 8b b5 78 01 00 00 mov 0x178(%r13),%r14
d: 31 ff xor %edi,%edi
f: 4c 89 f6 mov %r14,%rsi
12: e8 10 c3 75 00 callq 0x75c327
17: 4d 85 f6 test %r14,%r14
1a: 0f 84 71 ff ff ff je 0xffffff91
20: e8 72 c0 75 00 callq 0x75c097
25: 44 89 f1 mov %r14d,%ecx
28: 0f 32 rdmsr
* 2a: 48 c1 e2 20 shl $0x20,%rdx <-- trapping instruction
2e: 48 89 d3 mov %rdx,%rbx
31: 48 09 c3 or %rax,%rbx
34: 66 90 xchg %ax,%ax
36: e8 5c c0 75 00 callq 0x75c097
3b: e9 65 ff ff ff jmpq 0xffffffa5