rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=3aac/1/0x4000000000000000 softirq=20590/20591 fqs=4544
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1037286          0            0
rcu: 	cputime:    25202      27287           90   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=11297 q=1845 ncpus=2)
CPU: 0 UID: 0 PID: 7368 Comm: syz.0.642 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a #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:kasan_quarantine_put+0x88/0x220
Code: e8 4d 5a a4 ff 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 0f 85 88 00 00 00 41 f7 c7 00 02 00 00 74 01 fb 31 c0 <48> 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f e9 d6 13 4e 09 cc 48 8d 80
RSP: 0018:ffffc90000007b28 EFLAGS: 00000206
RAX: 50b1f9b784e39101 RBX: ffff888023479e00 RCX: 50b1f9b784e39100
RDX: 0000000000000000 RSI: ffffffff8d9986f9 RDI: ffffffff8be29f80
RBP: 0000000000000000 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88801a4413c0
R13: 0000000000000000 R14: 00000000000e3f70 R15: 0000000000000286
FS:  00007f52ed6cc6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f52ed6aafc8 CR3: 000000010ec88000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000082 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 kfree+0x18e/0x440
 __free_slab+0xb9/0x1c0
 rcu_core+0xca8/0x1710
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:do_syscall_64+0xc3/0x3b0
Code: 00 48 8b 7d 08 48 89 7b 18 e8 49 5a 00 00 0f 1f 44 00 00 0f 1f 44 00 00 90 e8 99 79 59 f6 90 90 e8 42 79 59 f6 fb 49 8b 57 08 <f6> c2 3f 74 0e 4c 89 f7 4c 89 ee e8 9d d1 3c f6 49 89 c4 90 90 41
RSP: 0018:ffffc90002e8fef0 EFLAGS: 00000286
RAX: 50b1f9b784e39100 RBX: ffffc90002e8fef0 RCX: 50b1f9b784e39100
RDX: 0000000000000000 RSI: ffffffff8d9986f9 RDI: ffffffff8be29f80
RBP: ffffc90002e8ff48 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 00000000000000ca
R13: 00000000000000ca R14: ffffc90002e8ff58 R15: ffff8880235ad640
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f52ec78e9a9
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:00007f52ed6cc0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f52ec9b5fa8 RCX: 00007f52ec78e9a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f52ec9b5fac
RBP: 00007f52ec9b5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f52ec9b5fac
R13: 0000000000000000 R14: 00007ffecb65a1f0 R15: 00007ffecb65a2d8
 </TASK>
sched: DL replenish lagged too much
