rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=7d84/1/0x4000000000000000 softirq=34114/34114 fqs=4713
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   963869          0            0
rcu: 	cputime:    24285      28204           98   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=28725 q=1141 ncpus=2)
CPU: 0 UID: 0 PID: 10839 Comm: syz.0.1488 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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:vsnprintf+0x108/0xf00
Code: 89 74 24 40 4d 89 f5 48 bb 00 00 00 00 00 fc ff df 45 31 f6 4c 89 ff 4c 89 f6 48 8d 54 24 48 e8 0e 0e 00 00 48 89 c5 49 89 d6 <41> 0f b6 fe 48 c7 c6 20 ed 88 8f e8 38 86 55 f6 41 0f b6 c6 83 f8
RSP: 0018:ffffc900000070b0 EFLAGS: 00000286
RAX: ffffffff8b8b8981 RBX: dffffc0000000000 RCX: ffff888105295640
RDX: 0000000000000000 RSI: 0000000000000025 RDI: 0000000000000000
RBP: ffffffff8b8b8981 R08: ffff888105295640 R09: 0000000000000002
R10: 0000000000000025 R11: 0000000000000100 R12: ffffc900000071a0
R13: ffffc9000000738e R14: 0000000000000000 R15: ffffffff8b8b8980
FS:  00007f5999e576c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5999e56fc8 CR3: 0000000106986000 CR4: 00000000000006f0
DR0: 0010000010000000 DR1: 0000000000000c18 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 sprintf+0xd9/0x120
 info_print_prefix+0x1f3/0x310
 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
 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:mas_empty_area+0x37b/0x14e0
Code: 49 83 c5 10 4c 89 e8 48 c1 e8 03 80 3c 28 00 74 08 4c 89 ef e8 06 d6 bd f6 48 8b 84 24 a8 00 00 00 49 89 45 00 e9 8c 0e 00 00 <49> 8d 5d 18 4d 8d 65 3d 49 8d 45 20 49 8d 55 28 48 89 d9 48 c1 e9
RSP: 0018:ffffc90002f5f578 EFLAGS: 00000297
RAX: ffffffff8b6575de RBX: ffffc90002f5f790 RCX: 0000000000000000
RDX: ffff888105295640 RSI: 0000000000000000 RDI: 0000000000000007
RBP: dffffc0000000000 R08: ffff888105295640 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000000 R12: ffffc90002f5f788
R13: ffffc90002f5f780 R14: 000000007ffffffe R15: 0000000000000000
 mas_alloc_cyclic+0x7d/0x630
 mtree_alloc_cyclic+0x186/0x220
 simple_offset_add+0xdc/0x190
 shmem_mknod+0x234/0x3e0
 path_openat+0x14f4/0x3830
 do_filp_open+0x1fa/0x410
 do_sys_openat2+0x121/0x1c0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5998f8e9a9
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:00007f5999e57038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f59991b6080 RCX: 00007f5998f8e9a9
RDX: 000000000000275a RSI: 00002000000001c0 RDI: ffffffffffffff9c
RBP: 00007f5999010d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f59991b6080 R15: 00007ffc5740ec08
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 10839 Comm: syz.0.1488 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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:match_held_lock+0x2/0xc0
Code: 41 5f c3 cc cc cc cc cc e8 fb f8 ff ff 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 41 56 <53> bb 01 00 00 00 48 39 77 10 74 6a 81 7f 20 00 00 20 00 72 5f 48
RSP: 0018:ffffc90000006ca8 EFLAGS: 00000012
RAX: 0000000000000008 RBX: 0000000000000023 RCX: b918146101998800
RDX: 0000000000000100 RSI: ffffffff8e13f0e0 RDI: ffff888105296248
RBP: ffff888105296248 R08: ffffc90000006daf R09: 0000000000000000
R10: ffffc90000006da0 R11: ffffffffa000080c R12: 0000000000000007
R13: 0000000000000007 R14: ffffffff8e13f0e0 R15: ffff888105295640
FS:  00007f5999e576c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5999e56fc8 CR3: 0000000106986000 CR4: 00000000000006f0
DR0: 0010000010000000 DR1: 0000000000000c18 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lock_release+0x127/0x3e0
 trace_call_bpf+0x5a9/0x850
 perf_trace_run_bpf_submit+0x78/0x170
 perf_trace_preemptirq_template+0x280/0x340
 trace_irq_disable+0xee/0x110
 irqentry_enter+0x3d/0x60
 sysvec_apic_timer_interrupt+0xe/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:format_decode+0x43a/0xe30
Code: 05 00 00 44 0f b6 75 00 46 8d 3c b5 00 00 00 00 49 8d 9f 61 dd b9 8c 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 8a 05 00 00 <4d> 8d af 60 dd b9 8c 0f b6 1b 31 ff 89 de e8 73 71 55 f6 85 db 4c
RSP: 0018:ffffc90000007050 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff8cb9df11 RCX: ffff888105295640
RDX: dffffc0000000000 RSI: 000000000000006c RDI: 000000000000002e
RBP: ffffffff8b8b8943 R08: ffff888105295640 R09: 0000000000000002
R10: 0000000000000025 R11: 0000000000000100 R12: ffffc900000070f9
R13: ffffc900000070f8 R14: 000000000000006c R15: 00000000000001b0
 vsnprintf+0x102/0xf00
 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
 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:mas_empty_area+0x37b/0x14e0
Code: 49 83 c5 10 4c 89 e8 48 c1 e8 03 80 3c 28 00 74 08 4c 89 ef e8 06 d6 bd f6 48 8b 84 24 a8 00 00 00 49 89 45 00 e9 8c 0e 00 00 <49> 8d 5d 18 4d 8d 65 3d 49 8d 45 20 49 8d 55 28 48 89 d9 48 c1 e9
RSP: 0018:ffffc90002f5f578 EFLAGS: 00000297
RAX: ffffffff8b6575de RBX: ffffc90002f5f790 RCX: 0000000000000000
RDX: ffff888105295640 RSI: 0000000000000000 RDI: 0000000000000007
RBP: dffffc0000000000 R08: ffff888105295640 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000000 R12: ffffc90002f5f788
R13: ffffc90002f5f780 R14: 000000007ffffffe R15: 0000000000000000
 mas_alloc_cyclic+0x7d/0x630
 mtree_alloc_cyclic+0x186/0x220
 simple_offset_add+0xdc/0x190
 shmem_mknod+0x234/0x3e0
 path_openat+0x14f4/0x3830
 do_filp_open+0x1fa/0x410
 do_sys_openat2+0x121/0x1c0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5998f8e9a9
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:00007f5999e57038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f59991b6080 RCX: 00007f5998f8e9a9
RDX: 000000000000275a RSI: 00002000000001c0 RDI: ffffffffffffff9c
RBP: 00007f5999010d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f59991b6080 R15: 00007ffc5740ec08
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 10839 Comm: syz.0.1488 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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:__hrtimer_run_queues+0x11e/0xc60
Code: 89 84 24 a0 00 00 00 48 c7 c0 18 37 8c 8f 48 c1 e8 03 48 89 44 24 70 48 c7 c0 d0 36 8c 8f 48 c1 e8 03 48 89 44 24 68 44 89 f0 <f3> 48 0f bc d8 bf 20 00 00 00 89 de e8 91 b6 11 00 83 fb 20 0f 83
RSP: 0018:ffffc900000072a0 EFLAGS: 00000802
RAX: 0000000000000001 RBX: 0000000000000011 RCX: ffff88804b027b40
RDX: ffff888105295640 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900000073f8 R08: 0000000000000000 R09: ffffffff81af2860
R10: dffffc0000000000 R11: ffffffff81723a40 R12: ffff88804b027b38
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000019
FS:  00007f5999e576c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5999e56fc8 CR3: 0000000106986000 CR4: 00000000000006f0
DR0: 0010000010000000 DR1: 0000000000000c18 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
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 8a 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc90000007620 EFLAGS: 00000246
RAX: 1ffffffff1d36927 RBX: ffffffff8e9b4938 RCX: ffff888105295640
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007770 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8e9b48e0
 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:mas_empty_area+0x37b/0x14e0
Code: 49 83 c5 10 4c 89 e8 48 c1 e8 03 80 3c 28 00 74 08 4c 89 ef e8 06 d6 bd f6 48 8b 84 24 a8 00 00 00 49 89 45 00 e9 8c 0e 00 00 <49> 8d 5d 18 4d 8d 65 3d 49 8d 45 20 49 8d 55 28 48 89 d9 48 c1 e9
RSP: 0018:ffffc90002f5f578 EFLAGS: 00000297
RAX: ffffffff8b6575de RBX: ffffc90002f5f790 RCX: 0000000000000000
RDX: ffff888105295640 RSI: 0000000000000000 RDI: 0000000000000007
RBP: dffffc0000000000 R08: ffff888105295640 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000000 R12: ffffc90002f5f788
R13: ffffc90002f5f780 R14: 000000007ffffffe R15: 0000000000000000
 mas_alloc_cyclic+0x7d/0x630
 mtree_alloc_cyclic+0x186/0x220
 simple_offset_add+0xdc/0x190
 shmem_mknod+0x234/0x3e0
 path_openat+0x14f4/0x3830
 do_filp_open+0x1fa/0x410
 do_sys_openat2+0x121/0x1c0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5998f8e9a9
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:00007f5999e57038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f59991b6080 RCX: 00007f5998f8e9a9
RDX: 000000000000275a RSI: 00002000000001c0 RDI: ffffffffffffff9c
RBP: 00007f5999010d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f59991b6080 R15: 00007ffc5740ec08
 </TASK>
