rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=bbe4/1/0x4000000000000000 softirq=17327/17328 fqs=4827
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   966164          1            0
rcu: 	cputime:    24362      28126           95   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=10405 q=3015 ncpus=2)
CPU: 1 UID: 0 PID: 6659 Comm: syz.0.348 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-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:console_flush_all+0x7f7/0xc40
Code: 48 21 c3 0f 85 e9 01 00 00 e8 75 e7 1e 00 48 8b 5c 24 20 4d 85 f6 75 07 e8 66 e7 1e 00 eb 06 e8 5f e7 1e 00 fb 48 8b 44 24 28 <42> 80 3c 20 00 74 08 48 89 df e8 ea 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc900001e0620 EFLAGS: 00000246
RAX: 1ffffffff1d902ff RBX: ffffffff8ec817f8 RCX: ffff88810aef1cc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0770 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8ec817a0
FS:  00007f3fba9756c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c29a576 CR3: 0000000028f3c000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 clocksource_watchdog+0xdca/0x11c0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0x67/0x180
 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 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:ffffc90002ebf920 EFLAGS: 00000282
RAX: bffff9b253657500 RBX: 0000000000000000 RCX: bffff9b253657500
RDX: 0000000000000000 RSI: ffffffff8d99873a RDI: 0000000000000001
RBP: ffffc90002ebf9c0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005d7f24
 irqentry_exit+0x6f/0x90
 asm_common_interrupt+0x26/0x40
RIP: 0010:its_return_thunk+0x0/0x10
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <c3> cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e9 cb ea c1 f5 cc
RSP: 0018:ffffc90002ebfa88 EFLAGS: 00000287
RAX: ffffffff81ec9ca9 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000863b000 RSI: 00000000000031d1 RDI: 00000000000031d2
RBP: 0000000000000027 R08: ffff88810000e103 R09: 1ffff11020001c20
R10: dffffc0000000000 R11: ffffed1020001c21 R12: 0000000000000000
R13: 1ffff920008f5a00 R14: ffffffff8dfe1840 R15: ffff888020102000
 bpf_lsm_capable+0x9/0x20
 security_capable+0x13c/0x2e0
 ns_capable+0x6f/0xf0
 bpf_token_capable+0x5b/0xe0
 bpf_prog_kallsyms_add+0xcc/0x5d0
 bpf_prog_load+0x1435/0x1930
 __sys_bpf+0x528/0x870
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3fb9b8e9a9
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:00007f3fba975038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f3fb9db6080 RCX: 00007f3fb9b8e9a9
RDX: 0000000000000094 RSI: 00002000000001c0 RDI: 0000000000000005
RBP: 00007f3fb9c10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3fb9db6080 R15: 00007ffcdaed4c98
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6659 Comm: syz.0.348 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-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:asm_sysvec_apic_timer_interrupt+0x0/0x20
Code: 56 6d 6e 0a e9 61 06 00 00 90 f3 0f 1e fa 0f 1f 00 fc 6a ff e8 11 05 00 00 48 89 c4 48 89 e7 e8 66 6c 6e 0a e9 41 06 00 00 90 <f3> 0f 1e fa 0f 1f 00 fc 6a ff e8 f1 04 00 00 48 89 c4 48 89 e7 e8
RSP: 0018:ffffc900001e05f8 EFLAGS: 00000046
RAX: 1ffffffff1d36927 RBX: 00000000000009ef RCX: ffff88810aef1cc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0770 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8e9b48e0
FS:  00007f3fba9756c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c29a576 CR3: 0000000028f3c000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
RIP: 0010:console_flush_all+0x809/0xc40
Code: 20 4d 85 f6 75 07 e8 66 e7 1e 00 eb 06 e8 5f e7 1e 00 fb 48 8b 44 24 28 42 80 3c 20 00 74 08 48 89 df e8 ea 0a 82 00 48 8b 1b <48> 8b 44 24 38 42 0f b6 04 20 84 c0 0f 85 d0 01 00 00 48 8b 44 24
RSP: 0018:ffffc900001e0620 EFLAGS: 00000246
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 clocksource_watchdog+0xdca/0x11c0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0x67/0x180
 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 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:ffffc90002ebf920 EFLAGS: 00000282
RAX: bffff9b253657500 RBX: 0000000000000000 RCX: bffff9b253657500
RDX: 0000000000000000 RSI: ffffffff8d99873a RDI: 0000000000000001
RBP: ffffc90002ebf9c0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005d7f24
 irqentry_exit+0x6f/0x90
 asm_common_interrupt+0x26/0x40
RIP: 0010:its_return_thunk+0x0/0x10
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <c3> cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e9 cb ea c1 f5 cc
RSP: 0018:ffffc90002ebfa88 EFLAGS: 00000287
RAX: ffffffff81ec9ca9 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000863b000 RSI: 00000000000031d1 RDI: 00000000000031d2
RBP: 0000000000000027 R08: ffff88810000e103 R09: 1ffff11020001c20
R10: dffffc0000000000 R11: ffffed1020001c21 R12: 0000000000000000
R13: 1ffff920008f5a00 R14: ffffffff8dfe1840 R15: ffff888020102000
 bpf_lsm_capable+0x9/0x20
 security_capable+0x13c/0x2e0
 ns_capable+0x6f/0xf0
 bpf_token_capable+0x5b/0xe0
 bpf_prog_kallsyms_add+0xcc/0x5d0
 bpf_prog_load+0x1435/0x1930
 __sys_bpf+0x528/0x870
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3fb9b8e9a9
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:00007f3fba975038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f3fb9db6080 RCX: 00007f3fb9b8e9a9
RDX: 0000000000000094 RSI: 00002000000001c0 RDI: 0000000000000005
RBP: 00007f3fb9c10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3fb9db6080 R15: 00007ffcdaed4c98
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6659 Comm: syz.0.348 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-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:console_flush_all+0x7f7/0xc40
Code: 48 21 c3 0f 85 e9 01 00 00 e8 75 e7 1e 00 48 8b 5c 24 20 4d 85 f6 75 07 e8 66 e7 1e 00 eb 06 e8 5f e7 1e 00 fb 48 8b 44 24 28 <42> 80 3c 20 00 74 08 48 89 df e8 ea 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc900001e0620 EFLAGS: 00000246
RAX: 1ffffffff1d902ff RBX: ffffffff8ec817f8 RCX: ffff88810aef1cc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0770 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8ec817a0
FS:  00007f3fba9756c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c29a576 CR3: 0000000028f3c000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 clocksource_watchdog+0xdca/0x11c0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0x67/0x180
 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 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:ffffc90002ebf920 EFLAGS: 00000282
RAX: bffff9b253657500 RBX: 0000000000000000 RCX: bffff9b253657500
RDX: 0000000000000000 RSI: ffffffff8d99873a RDI: 0000000000000001
RBP: ffffc90002ebf9c0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005d7f24
 irqentry_exit+0x6f/0x90
 asm_common_interrupt+0x26/0x40
RIP: 0010:its_return_thunk+0x0/0x10
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <c3> cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e9 cb ea c1 f5 cc
RSP: 0018:ffffc90002ebfa88 EFLAGS: 00000287
RAX: ffffffff81ec9ca9 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000863b000 RSI: 00000000000031d1 RDI: 00000000000031d2
RBP: 0000000000000027 R08: ffff88810000e103 R09: 1ffff11020001c20
R10: dffffc0000000000 R11: ffffed1020001c21 R12: 0000000000000000
R13: 1ffff920008f5a00 R14: ffffffff8dfe1840 R15: ffff888020102000
 bpf_lsm_capable+0x9/0x20
 security_capable+0x13c/0x2e0
 ns_capable+0x6f/0xf0
 bpf_token_capable+0x5b/0xe0
 bpf_prog_kallsyms_add+0xcc/0x5d0
 bpf_prog_load+0x1435/0x1930
 __sys_bpf+0x528/0x870
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3fb9b8e9a9
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:00007f3fba975038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f3fb9db6080 RCX: 00007f3fb9b8e9a9
RDX: 0000000000000094 RSI: 00002000000001c0 RDI: 0000000000000005
RBP: 00007f3fb9c10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3fb9db6080 R15: 00007ffcdaed4c98
 </TASK>
