rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4435 1-.... } 4923 jiffies s: 3989 root: 0x2/T
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4409 Comm: syz.4.32 Not tainted 6.1.119-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:182 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x13/0x60 kernel/kcov.c:216
Code: 48 8b 3d f8 5d 10 0d 48 89 de 5b e9 47 b2 56 00 cc cc cc cc cc cc cc 48 8b 04 24 65 48 8b 0d 44 d3 77 7e 65 8b 15 45 d3 77 7e <81> e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 1c 16 00 00
RSP: 0018:ffffc900001e07e8 EFLAGS: 00000097
RAX: ffffffff81b0c8e0 RBX: 0000000000000001 RCX: ffff888027399dc0
RDX: 0000000000000304 RSI: 0000000000000001 RDI: 0000000000000008
RBP: 0000000000000001 R08: ffffffff81b0c8d2 R09: ffffed10171e6ad6
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000014
R13: dffffc0000000000 R14: ffffc900001e08c0 R15: ffffc900001e08e0
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f01813f3fb8 CR3: 000000000d08e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 perf_swevent_get_recursion_context+0x30/0x150 kernel/events/core.c:9699
 perf_trace_buf_alloc+0x57/0x2e0 kernel/trace/trace_event_perf.c:408
 perf_trace_preemptirq_template+0x191/0x3d0 include/trace/events/preemptirq.h:14
 trace_irq_disable_rcuidle+0xd5/0x140 include/trace/events/preemptirq.h:36
 __local_bh_enable_ip+0x102/0x1f0 kernel/softirq.c:378
 ipv6_get_lladdr+0x291/0x3c0 net/ipv6/addrconf.c:1894
 addrconf_rs_timer+0x25d/0x610 net/ipv6/addrconf.c:3962
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:kasan_check_range+0x1/0x290 mm/kasan/generic.c:188
Code: 01 c6 48 89 c7 e8 8f 6c d0 08 31 c0 c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 cc cc cc cc cc cc cc cc cc cc cc cc 55 <41> 57 41 56 53 b0 01 48 85 f6 0f 84 9a 01 00 00 48 89 fd 48 01 f5
RSP: 0018:ffffc90004287150 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff816ad081
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e9af7a8
RBP: ffffc90004287298 R08: ffffffff81ed04f2 R09: fffffbfff224984d
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000850e38
R13: ffffffff81ed0276 R14: ffffffff81ed0276 R15: dffffc0000000000
 instrument_atomic_read include/linux/instrumented.h:72 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 cpumask_test_cpu include/linux/cpumask.h:444 [inline]
 cpu_online include/linux/cpumask.h:1030 [inline]
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x911/0xa20 kernel/locking/lockdep.c:5673
 rcu_lock_release include/linux/rcupdate.h:355 [inline]
 rcu_read_unlock_sched include/linux/rcupdate.h:904 [inline]
 pfn_valid+0x3eb/0x440 include/linux/mmzone.h:1867
 page_table_check_clear+0x1e/0x6d0 mm/page_table_check.c:67
 zap_pte_range mm/memory.c:1435 [inline]
 zap_pmd_range mm/memory.c:1574 [inline]
 zap_pud_range mm/memory.c:1603 [inline]
 zap_p4d_range mm/memory.c:1624 [inline]
 unmap_page_range+0x1b4a/0x2740 mm/memory.c:1645
 unmap_vmas+0x48b/0x640 mm/memory.c:1730
 exit_mmap+0x249/0x980 mm/mmap.c:3234
 __mmput+0x115/0x3c0 kernel/fork.c:1200
 exit_mm+0x226/0x300 kernel/exit.c:565
 do_exit+0x9f6/0x26a0 kernel/exit.c:858
 do_group_exit+0x202/0x2b0 kernel/exit.c:1021
 get_signal+0x16f7/0x17d0 kernel/signal.c:2871
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7feb13180809
Code: Unable to access opcode bytes at 0x7feb131807df.
RSP: 002b:00007feb13fcf008 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: fffffffffffffff4 RBX: 00007feb13345fa0 RCX: 00007feb13180809
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000a610c000
RBP: 00007feb131f393e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007feb13345fa0 R15: 00007ffffab85a48
 </TASK>