rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=3ab4/1/0x4000000000000000 softirq=14423/14423 fqs=4695
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1174169          0            0
rcu: 	cputime:    25711      26767           79   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=6833 q=3466 ncpus=2)
CPU: 1 UID: 0 PID: 6094 Comm: syz.1.93 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:check_preemption_disabled+0x17/0x120
Code: 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 53 48 83 ec 10 65 48 8b 05 ee 6d 31 07 48 89 44 24 08 <65> 8b 05 f6 6d 31 07 65 8b 0d eb 6d 31 07 f7 c1 ff ff ff 7f 74 23
RSP: 0018:ffffc900001e0de8 EFLAGS: 00000286
RAX: d8161b7901fb4300 RBX: 0000000000000001 RCX: ffffffff8185b54e
RDX: 0000000000000000 RSI: ffffffff8be29f60 RDI: ffffffff8be29f20
RBP: ffffc900001e0f50 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 1ffffffff1bc181b
R13: 0000000000000002 R14: 0000000000000003 R15: ffffffff8de0c0d8
FS:  00007f55add686c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555584795808 CR3: 0000000026a06000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 rcu_is_watching+0x15/0xb0
 handle_softirqs+0x2bd/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: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 5b 22 21 f6 e8 96 f5 57 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:ffffc900046d7360 EFLAGS: 00000286
RAX: d8161b7901fb4300 RBX: 0000000000000000 RCX: d8161b7901fb4300
RDX: 0000000000000000 RSI: ffffffff8d9986f9 RDI: 0000000000000001
RBP: ffffc900046d7410 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920008dae6c
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:fs_reclaim_acquire+0x0/0x100
Code: fe 48 c7 c7 a0 69 24 8e e9 0d 4b 88 ff 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 53 65 48 8b 1c 25 08 10 a0 92 48 83 c3 2c 48 89 d8
RSP: 0018:ffffc900046d74d8 EFLAGS: 00000206
RAX: ffffffff81d5d326 RBX: 0000000000400dc0 RCX: d8161b7901fb4300
RDX: 0000000000000558 RSI: 0000000000400dc0 RDI: 0000000000400dc0
RBP: 0000000000400dc0 R08: 00000000ee66d90c R09: 000000009e5ae0c5
R10: 000000000000000a R11: ffffffff81acf520 R12: 1ffff1102272050b
R13: dffffc0000000000 R14: ffff888113902858 R15: ffff88801a44b3c0
 __kmalloc_cache_noprof+0x41/0x3d0
 do_check_common+0x206/0x2470
 bpf_check+0x1746a/0x1d2e0
 bpf_prog_load+0x1318/0x1930
 __sys_bpf+0x528/0x870
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f55acf8e9a9
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:00007f55add68038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f55ad1b6080 RCX: 00007f55acf8e9a9
RDX: 0000000000000090 RSI: 0000200000000200 RDI: 0000000000000005
RBP: 00007f55ad010d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f55ad1b6080 R15: 00007ffcfacf62c8
 </TASK>
sched: DL replenish lagged too much
