rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10440 ticks this GP) idle=bebc/1/0x4000000000000000 softirq=19470/20001 fqs=5247
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1124403        839            0
rcu: 	cputime:    24052      28440           89   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=12489 q=2658 ncpus=2)
CPU: 0 UID: 0 PID: 6604 Comm: syz.4.204 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 cb 9e 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 13 cd 1f f6 65 8b 05 bc f9 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc90000007a60 EFLAGS: 00000206
RAX: 7be1f1829f483400 RBX: 0000000000000a02 RCX: 7be1f1829f483400
RDX: 0000000000000002 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc90000007af0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88804b025940 R15: 1ffff92000000f4c
FS:  00007f07b4bf66c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555590e115c8 CR3: 000000010e140000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __mod_timer+0xb37/0xf30
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 2d 21 f6 e8 c6 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90002d1f780 EFLAGS: 00000282
RAX: 7be1f1829f483400 RBX: 0000000000000000 RCX: 7be1f1829f483400
RDX: 0000000000000007 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc90002d1f830 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005a3ef0
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:kasan_quarantine_reduce+0x0/0x160
Code: ff ff 4c 8b b1 90 5b b1 99 4c 3b 35 72 7f 8e 17 73 aa eb c2 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 53 48 83 ec 20 48 c7 44 24 18 00 00 00 00 48 c7 44 24
RSP: 0018:ffffc90002d1f8f8 EFLAGS: 00000206
RAX: 0000000000000001 RBX: ffff8880119c4380 RCX: 0000000000000dc0
RDX: 0000000000000028 RSI: ffff8880119c4380 RDI: ffff88801a4418c0
RBP: 0000000000000dc0 R08: 0000000000000dc0 R09: 00000000ffffffff
R10: ffff8880119c4380 R11: 0000000000000000 R12: 0000000000000040
R13: ffff8880119c4380 R14: ffff88801a4418c0 R15: 0000000000000028
 __kasan_kmalloc+0x22/0xb0
 __kmalloc_cache_noprof+0x230/0x3d0
 task_numa_work+0x91f/0x1590
 task_work_run+0x1d4/0x260
 get_signal+0x11ed/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f07b6d8e9a9
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:00007f07b4bf6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: fffffffffffffffc RBX: 00007f07b6fb5fa0 RCX: 00007f07b6d8e9a9
RDX: 0000000000000050 RSI: 0000200000000180 RDI: 000000000000000a
RBP: 00007f07b6e10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f07b6fb5fa0 R15: 00007ffe442f3538
 </TASK>
sched: DL replenish lagged too much
