rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10311 ticks this GP) idle=e4ac/1/0x4000000000000000 softirq=14413/14413 fqs=4522
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1215505          0            0
rcu: 	cputime:    31315      21164           77   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=6121 q=2717 ncpus=2)
CPU: 0 UID: 0 PID: 5998 Comm: syz.1.21 Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:unwind_next_frame+0x40/0x2390 arch/x86/kernel/unwind_orc.c:-1
Code: 89 fe 48 bd 00 00 00 00 00 fc ff df 48 8d 5f 48 48 89 d8 48 c1 e8 03 48 89 44 24 30 80 3c 28 00 74 08 48 89 df e8 90 32 b0 00 <48> 89 5c 24 18 49 8b 5e 48 4d 8d 6e 38 4c 89 e8 48 c1 e8 03 48 89
RSP: 0018:ffffc900000071d8 EFLAGS: 00000246
RAX: 1ffff92000000e5e RBX: ffffc900000072f0 RCX: ba118fa3bec01000
RDX: dffffc0000000000 RSI: ffffffff8238e7c2 RDI: ffffc900000072a8
RBP: dffffc0000000000 R08: ffffc90000007370 R09: 0000000000000016
R10: ffffc900000072f8 R11: ffffffff81ac34b0 R12: ffff888028275640
R13: ffff888023e18cc0 R14: ffffc900000072a8 R15: ffffc900000072a8
FS:  00007f988d7636c0(0000) GS:ffff8880b862a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fb5ffff CR3: 000000001f418000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4396
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 ref_tracker_alloc+0x133/0x460 lib/ref_tracker.c:271
 __netdev_tracker_alloc include/linux/netdevice.h:4346 [inline]
 netdev_hold include/linux/netdevice.h:4375 [inline]
 dst_init+0xd9/0x450 net/core/dst.c:52
 dst_alloc+0x12a/0x170 net/core/dst.c:93
 ip6_dst_alloc net/ipv6/route.c:342 [inline]
 icmp6_dst_alloc+0x75/0x420 net/ipv6/route.c:3324
 ndisc_send_skb+0x41f/0x1440 net/ipv6/ndisc.c:491
 addrconf_rs_timer+0x369/0x670 net/ipv6/addrconf.c:4037
 call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1798 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x61a/0x860 kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
 handle_softirqs+0x286/0x870 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline]
RIP: 0010:_raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186
Code: 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 8a 74 23 f6 <48> 89 df e8 e2 0b 24 f6 bf 01 00 00 00 e8 38 05 16 f6 65 8b 05 01
RSP: 0018:ffffc900068cfb68 EFLAGS: 00000286
RAX: ba118fa3bec01000 RBX: ffff88810f2d4c00 RCX: ba118fa3bec01000
RDX: 0000000000000001 RSI: ffffffff8dba01ee RDI: ffffffff8be2fd00
RBP: dffffc0000000000 R08: ffffffff8e283903 R09: 1ffffffff1c50720
R10: dffffc0000000000 R11: fffffbfff1c50721 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88810f2d4c68 R15: ffff888111af8a78
 spin_unlock include/linux/spinlock.h:391 [inline]
 fasync_insert_entry+0x1df/0x270 fs/fcntl.c:1064
 fasync_add_entry fs/fcntl.c:1087 [inline]
 fasync_helper+0x52/0xb0 fs/fcntl.c:1105
 perf_fasync+0xc3/0x110 kernel/events/core.c:7168
 ioctl_fioasync fs/ioctl.c:379 [inline]
 do_vfs_ioctl+0x1064/0x1430 fs/ioctl.c:512
 __do_sys_ioctl fs/ioctl.c:596 [inline]
 __se_sys_ioctl+0x82/0x170 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f988c98eb69
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f988d763038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f988cbb5fa0 RCX: 00007f988c98eb69
RDX: 00002000000006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f988ca11df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f988cbb5fa0 R15: 00007ffc1485aca8
 </TASK>
sched: DL replenish lagged too much
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 74275657605 wd_nsec: 74275659212
