rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (1 GPs behind) idle=9db/1/0x4000000000000000 softirq=91270/91279 fqs=4773
(t=10500 jiffies g=176977 q=56497)
NMI backtrace for cpu 1
CPU: 1 PID: 10632 Comm: syz-executor.2 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:3878 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597
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+0x40/0xc0 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_cmp8+0x69/0x70 kernel/kcov.c:268
Code: 3c cd 28 00 00 00 48 39 fe 72 1f 48 83 c2 01 4c 89 44 38 e8 48 c7 44 38 e0 06 00 00 00 48 89 4c 38 f0 4e 89 54 c8 20 48 89 10 66 0f 1f 44 00 00 53 41 89 fb 41 89 f1 bf 03 00 00 00 65 48 8b
RSP: 0018:ffffc90000fd8c48 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888034ada5c0 RCX: fffffff0a3da8872
RDX: 0000000000000000 RSI: ffff88801f3420c0 RDI: 0000000000000003
RBP: fffffff0a3da8872 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff87546be6 R11: 0000000000000000 R12: fffffff0a3da8872
R13: ffff88801359f300 R14: 0000000000000000 R15: 0000000000000000
pie_calculate_probability+0x336/0x7c0 net/sched/sch_pie.c:390
fq_pie_timer+0x170/0x2a0 net/sched/sch_fq_pie.c:383
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 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_switch+0x10/0xf0 kernel/kcov.c:306
Code: 40 70 02 00 48 8b 80 98 15 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 55 49 89 fb 49 89 f0 41 54 55 53 48 8b 46 08 <48> 83 f8 20 0f 84 c4 00 00 00 0f 87 9e 00 00 00 48 83 f8 08 0f 84
RSP: 0018:ffffc90004ab79a8 EFLAGS: 00000212
RAX: 0000000000000020 RBX: 0000000000000003 RCX: ffffc9000bdf4000
RDX: 0000000000040000 RSI: ffffffff89e44040 RDI: 0000000000000003
RBP: 00000000c114d201 R08: ffffffff89e44040 R09: 0000000000000001
R10: ffffffff83da6b81 R11: 0000000000000003 R12: ffffc90004ab7ac8
R13: 000000009fc290fc R14: 000000009fc290fc R15: 000000009fc290fc
jhash2 include/linux/jhash.h:135 [inline]
rhashtable_jhash2+0x14d/0x2d0 lib/rhashtable.c:970
rht_key_get_hash include/linux/rhashtable.h:133 [inline]
rht_key_hashfn include/linux/rhashtable.h:159 [inline]
__rhashtable_lookup.constprop.0+0xea/0x5e0 include/linux/rhashtable.h:596
rhashtable_lookup include/linux/rhashtable.h:638 [inline]
rhashtable_lookup_fast include/linux/rhashtable.h:664 [inline]
__netlink_lookup net/netlink/af_netlink.c:514 [inline]
netlink_lookup+0x130/0x470 net/netlink/af_netlink.c:534
netlink_getsockbyportid net/netlink/af_netlink.c:1154 [inline]
netlink_unicast+0x244/0x7d0 net/netlink/af_netlink.c:1339
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
__sys_sendto+0x21c/0x320 net/socket.c:2036
__do_sys_sendto net/socket.c:2048 [inline]
__se_sys_sendto net/socket.c:2044 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2044
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: 0033:0x7fd52d4808ac
Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b
RSP: 002b:00007fd52aa42020 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fd52aa42110 RCX: 00007fd52d4808ac
RDX: 0000000000000020 RSI: 00007fd52aa42160 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007fd52aa42074 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fd52aa420c8
R13: 00007fd52aa42160 R14: 0000000000000005 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: 3c cd cmp $0xcd,%al
2: 28 00 sub %al,(%rax)
4: 00 00 add %al,(%rax)
6: 48 39 fe cmp %rdi,%rsi
9: 72 1f jb 0x2a
b: 48 83 c2 01 add $0x1,%rdx
f: 4c 89 44 38 e8 mov %r8,-0x18(%rax,%rdi,1)
14: 48 c7 44 38 e0 06 00 movq $0x6,-0x20(%rax,%rdi,1)
1b: 00 00
1d: 48 89 4c 38 f0 mov %rcx,-0x10(%rax,%rdi,1)
22: 4e 89 54 c8 20 mov %r10,0x20(%rax,%r9,8)
27: 48 89 10 mov %rdx,(%rax)
* 2a: c3 retq <-- trapping instruction
2b: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
31: 53 push %rbx
32: 41 89 fb mov %edi,%r11d
35: 41 89 f1 mov %esi,%r9d
38: bf 03 00 00 00 mov $0x3,%edi
3d: 65 gs
3e: 48 rex.W
3f: 8b .byte 0x8b