rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=4834/1/0x4000000000000000 softirq=30263/50244 fqs=4513
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1041459       5918            0
rcu: 	cputime:    25212      27195          160   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=20217 q=2166 ncpus=2)
CPU: 0 UID: 0 PID: 10031 Comm: syz.2.1894 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:handle_softirqs+0x1b0/0x870
Code: 89 64 24 30 0f b7 db 48 c7 c7 00 ad 89 8b e8 17 ef e8 09 65 66 c7 05 f5 5b 1a 11 00 00 e8 98 f5 41 00 fb 49 c7 c7 c0 c0 e0 8d <b8> ff ff ff ff 0f bc c3 41 89 c5 41 ff c5 0f 84 c2 03 00 00 89 5c
RSP: 0018:ffffc90000007e40 EFLAGS: 00000286
RAX: 42bc194d6a2ead00 RBX: 0000000000000202 RCX: 42bc194d6a2ead00
RDX: 0000000000000002 RSI: ffffffff8d998701 RDI: ffffffff8be29f80
RBP: ffffc90000007f50 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 000000000000000a
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8de0c0c0
FS:  00007fc69e02d6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000124a80000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __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:vsnprintf+0xac9/0xf00
Code: e1 07 38 c1 7c c9 4c 89 ef e8 f3 8f b8 f6 eb bf e8 ec 6b 55 f6 49 ff c7 4d 89 fd eb 0d e8 df 6b 55 f6 4d 89 fd 4c 8b 74 24 08 <48> 89 e8 48 c1 e8 03 0f b6 04 18 84 c0 75 3d 80 7d 00 00 0f 84 f8
RSP: 0018:ffffc90006776e10 EFLAGS: 00000286
RAX: ffffc900067770e6 RBX: dffffc0000000000 RCX: 000000000000002e
RDX: 0000000000000000 RSI: ffffffff8b8b8905 RDI: ffffc900067770e6
RBP: ffffffff8b8b8906 R08: ffffc900067770e6 R09: 1ffff92000ceee1c
R10: dffffc0000000000 R11: fffff52000ceee1d R12: ffffc90006776f00
R13: ffffc900067770e7 R14: 0000000000000800 R15: ffffffff8b8b8905
 sprintf+0xd9/0x120
 info_print_prefix+0x155/0x310
 record_print_text+0x154/0x430
 printk_get_next_message+0x26d/0x7b0
 console_flush_all+0x4ca/0xc40
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 __show_mem+0x95/0x21b0
 warn_alloc+0x2dd/0x310
 __vmalloc_node_range_noprof+0x125/0x12f0
 vmalloc_user_noprof+0xad/0xf0
 xskq_create+0xbf/0x170
 xsk_init_queue+0xb0/0x110
 xsk_setsockopt+0x4de/0x710
 do_sock_setsockopt+0x17c/0x1b0
 __x64_sys_setsockopt+0x13f/0x1b0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc69d18eb69
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:00007fc69e02d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fc69d3b5fa0 RCX: 00007fc69d18eb69
RDX: 0000000000000002 RSI: 000000000000011b RDI: 0000000000000008
RBP: 00007fc69d211df1 R08: 0000000000000004 R09: 0000000000000000
R10: 0000200000000900 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc69d3b5fa0 R15: 00007ffcc3b21088
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 10031 Comm: syz.2.1894 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:native_apic_msr_eoi+0xf/0x20
Code: f8 c3 cc cc cc cc cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa b9 0b 08 00 00 31 c0 31 d2 0f 30 <e9> 8c 14 00 0a cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffffc90000007d50 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc90000007d98 RCX: 000000000000080b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: ffff88804b023b0f R09: 1ffff11009604761
R10: dffffc0000000000 R11: ffffed1009604762 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fc69e02d6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000124a80000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __sysvec_apic_timer_interrupt+0x45/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:handle_softirqs+0x1b0/0x870
Code: 89 64 24 30 0f b7 db 48 c7 c7 00 ad 89 8b e8 17 ef e8 09 65 66 c7 05 f5 5b 1a 11 00 00 e8 98 f5 41 00 fb 49 c7 c7 c0 c0 e0 8d <b8> ff ff ff ff 0f bc c3 41 89 c5 41 ff c5 0f 84 c2 03 00 00 89 5c
RSP: 0018:ffffc90000007e40 EFLAGS: 00000286
RAX: 42bc194d6a2ead00 RBX: 0000000000000202 RCX: 42bc194d6a2ead00
RDX: 0000000000000002 RSI: ffffffff8d998701 RDI: ffffffff8be29f80
RBP: ffffc90000007f50 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 000000000000000a
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8de0c0c0
 __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:vsnprintf+0xac9/0xf00
Code: e1 07 38 c1 7c c9 4c 89 ef e8 f3 8f b8 f6 eb bf e8 ec 6b 55 f6 49 ff c7 4d 89 fd eb 0d e8 df 6b 55 f6 4d 89 fd 4c 8b 74 24 08 <48> 89 e8 48 c1 e8 03 0f b6 04 18 84 c0 75 3d 80 7d 00 00 0f 84 f8
RSP: 0018:ffffc90006776e10 EFLAGS: 00000286
RAX: ffffc900067770e6 RBX: dffffc0000000000 RCX: 000000000000002e
RDX: 0000000000000000 RSI: ffffffff8b8b8905 RDI: ffffc900067770e6
RBP: ffffffff8b8b8906 R08: ffffc900067770e6 R09: 1ffff92000ceee1c
R10: dffffc0000000000 R11: fffff52000ceee1d R12: ffffc90006776f00
R13: ffffc900067770e7 R14: 0000000000000800 R15: ffffffff8b8b8905
 sprintf+0xd9/0x120
 info_print_prefix+0x155/0x310
 record_print_text+0x154/0x430
 printk_get_next_message+0x26d/0x7b0
 console_flush_all+0x4ca/0xc40
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 __show_mem+0x95/0x21b0
 warn_alloc+0x2dd/0x310
 __vmalloc_node_range_noprof+0x125/0x12f0
 vmalloc_user_noprof+0xad/0xf0
 xskq_create+0xbf/0x170
 xsk_init_queue+0xb0/0x110
 xsk_setsockopt+0x4de/0x710
 do_sock_setsockopt+0x17c/0x1b0
 __x64_sys_setsockopt+0x13f/0x1b0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc69d18eb69
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:00007fc69e02d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fc69d3b5fa0 RCX: 00007fc69d18eb69
RDX: 0000000000000002 RSI: 000000000000011b RDI: 0000000000000008
RBP: 00007fc69d211df1 R08: 0000000000000004 R09: 0000000000000000
R10: 0000200000000900 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc69d3b5fa0 R15: 00007ffcc3b21088
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 10031 Comm: syz.2.1894 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:ffffc90000007e18 EFLAGS: 00000086
RAX: 42bc194d6a2ead00 RBX: 0000000000000202 RCX: 42bc194d6a2ead00
RDX: 0000000000000002 RSI: ffffffff8d998701 RDI: ffffffff8be29f80
RBP: ffffc90000007f50 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 000000000000000a
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8de0c0c0
FS:  00007fc69e02d6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000124a80000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
RIP: 0010:handle_softirqs+0x1b0/0x870
Code: 89 64 24 30 0f b7 db 48 c7 c7 00 ad 89 8b e8 17 ef e8 09 65 66 c7 05 f5 5b 1a 11 00 00 e8 98 f5 41 00 fb 49 c7 c7 c0 c0 e0 8d <b8> ff ff ff ff 0f bc c3 41 89 c5 41 ff c5 0f 84 c2 03 00 00 89 5c
RSP: 0018:ffffc90000007e40 EFLAGS: 00000286
 __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:vsnprintf+0xac9/0xf00
Code: e1 07 38 c1 7c c9 4c 89 ef e8 f3 8f b8 f6 eb bf e8 ec 6b 55 f6 49 ff c7 4d 89 fd eb 0d e8 df 6b 55 f6 4d 89 fd 4c 8b 74 24 08 <48> 89 e8 48 c1 e8 03 0f b6 04 18 84 c0 75 3d 80 7d 00 00 0f 84 f8
RSP: 0018:ffffc90006776e10 EFLAGS: 00000286
RAX: ffffc900067770e6 RBX: dffffc0000000000 RCX: 000000000000002e
RDX: 0000000000000000 RSI: ffffffff8b8b8905 RDI: ffffc900067770e6
RBP: ffffffff8b8b8906 R08: ffffc900067770e6 R09: 1ffff92000ceee1c
R10: dffffc0000000000 R11: fffff52000ceee1d R12: ffffc90006776f00
R13: ffffc900067770e7 R14: 0000000000000800 R15: ffffffff8b8b8905
 sprintf+0xd9/0x120
 info_print_prefix+0x155/0x310
 record_print_text+0x154/0x430
 printk_get_next_message+0x26d/0x7b0
 console_flush_all+0x4ca/0xc40
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 __show_mem+0x95/0x21b0
 warn_alloc+0x2dd/0x310
 __vmalloc_node_range_noprof+0x125/0x12f0
 vmalloc_user_noprof+0xad/0xf0
 xskq_create+0xbf/0x170
 xsk_init_queue+0xb0/0x110
 xsk_setsockopt+0x4de/0x710
 do_sock_setsockopt+0x17c/0x1b0
 __x64_sys_setsockopt+0x13f/0x1b0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc69d18eb69
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:00007fc69e02d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fc69d3b5fa0 RCX: 00007fc69d18eb69
RDX: 0000000000000002 RSI: 000000000000011b RDI: 0000000000000008
RBP: 00007fc69d211df1 R08: 0000000000000004 R09: 0000000000000000
R10: 0000200000000900 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc69d3b5fa0 R15: 00007ffcc3b21088
 </TASK>
