rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=c404/1/0x4000000000000000 softirq=48490/48491 fqs=5187
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1130941          0            0
rcu: 	cputime:    30560      21939           82   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=38985 q=3663 ncpus=2)
CPU: 0 UID: 0 PID: 13127 Comm: syz.0.2126 Not tainted syzkaller #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:is_aoe_netif+0x1d/0x300
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 41 57 41 56 41 55 41 54 53 48 89 fb e8 4a 28 98 fa 0f b6 2d 73 52 ba 12 <31> ff 89 ee e8 3a 2b 98 fa 85 ed 0f 84 e3 01 00 00 48 c7 c7 80 d6
RSP: 0018:ffffc90000007a48 EFLAGS: 00000246
RAX: ffffffff87278406 RBX: ffff8880242a2000 RCX: ffff888113420000
RDX: 0000000000000100 RSI: 0000000000000003 RDI: ffff8880242a2000
RBP: 0000000000000000 R08: ffff8880242a265b R09: 1ffff110048544cb
R10: dffffc0000000000 R11: ffffed10048544cc R12: 00000000000000b0
R13: ffff8880242a2158 R14: ffff8880242a2000 R15: ffff8880242a2610
FS:  00007f786d3f66c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f786d3d4fc8 CR3: 000000012b0d6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 aoecmd_cfg+0x23c/0x7c0
 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_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:kasan_check_range+0x6b/0x2c0
Code: 00 ff f3 0f 1e fa 4c 39 cf 0f 82 58 02 00 00 49 89 ff 49 c1 ef 03 49 ba 00 00 00 00 00 fc ff df 4f 8d 1c 17 49 ff c8 4d 89 c1 <49> c1 e9 03 48 bb 01 00 00 00 00 fc ff df 4d 8d 34 19 4d 89 f4 4d
RSP: 0018:ffffc90002e6f888 EFLAGS: 00000282
RAX: ffff8881a3c1c001 RBX: ffff88801dc47330 RCX: ffffffff819d1824
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88801dc47330
RBP: 0000000000000008 R08: ffff88801dc47337 R09: ffff88801dc47337
R10: dffffc0000000000 R11: ffffed1003b88e66 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff888113421cc0 R15: 1ffff11003b88e66
 rwsem_spin_on_owner+0x1d4/0x2b0
 rwsem_down_write_slowpath+0x20d/0xfe0
 down_write+0x1ab/0x1f0
 perf_fasync+0xad/0x110
 do_vfs_ioctl+0x1064/0x1430
 __se_sys_ioctl+0x82/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f786f18eba9
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:00007f786d3f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f786f3d5fa0 RCX: 00007f786f18eba9
RDX: 0000200000000400 RSI: 0000000000005452 RDI: 0000000000000008
RBP: 00007f786f211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f786f3d6038 R14: 00007f786f3d5fa0 R15: 00007ffd9503a8e8
 </TASK>
sched: DL replenish lagged too much
