rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=8aa4/1/0x4000000000000000 softirq=25779/25779 fqs=5246
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1112528          0            0
rcu: 	cputime:    25453      27046           85   ==> 52500(ms)
rcu: 	(t=10501 jiffies g=18789 q=1943 ncpus=2)
CPU: 1 UID: 0 PID: 8464 Comm: syz.2.805 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-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 8a 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc900001e0620 EFLAGS: 00000246
RAX: 1ffffffff1d902ff RBX: ffffffff8ec817f8 RCX: ffff88801bfeb980
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:  00007f0e872c26c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c354921 CR3: 000000002b110000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000200000000300 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:__list_add_valid_or_report+0x44/0x130
Code: 48 85 d2 0f 84 93 00 00 00 49 89 f6 49 89 ff 49 bd 00 00 00 00 00 fc ff df 4c 8d 63 08 4c 89 e5 48 c1 ed 03 42 80 7c 2d 00 00 <74> 08 4c 89 e7 e8 42 c4 5b fd 4d 39 34 24 75 71 4d 89 f4 49 c1 ec
RSP: 0018:ffffc9000323fa48 EFLAGS: 00000246
RAX: 0000000000000009 RBX: ffffea0000e8d608 RCX: 0000000000000003
RDX: ffffea0000e8d608 RSI: ffff88813663fe30 RDI: ffffea00010fd808
RBP: 1ffffd40001d1ac2 R08: 0000000000000003 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000647f4c R12: ffffea0000e8d610
R13: dffffc0000000000 R14: ffff88813663fe30 R15: ffffea00010fd808
 free_frozen_page_commit+0xe2/0x1070
 __free_frozen_pages+0x78b/0xe70
 __put_partials+0x161/0x1c0
 put_cpu_partial+0x17c/0x250
 __slab_free+0x2f7/0x400
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 getname_flags+0xb8/0x540
 do_sys_openat2+0xbc/0x1c0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e8638e9a9
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:00007f0e872c2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0e865b5fa0 RCX: 00007f0e8638e9a9
RDX: 0000000000000000 RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007f0e86410d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0e865b5fa0 R15: 00007ffc64a9b218
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 8464 Comm: syz.2.805 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-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:pvclock_clocksource_read_nowd+0x44/0xf0
Code: 89 f1 48 d3 e0 83 e5 fe 4c 89 3c 24 48 f7 24 24 48 0f ac d0 20 48 8b 4f 10 0f b6 57 1d 8b 37 39 f5 89 f5 74 70 0f ae e8 0f 31 <48> 89 c1 48 89 d0 48 c1 e0 20 48 09 c8 48 2b 47 08 44 8b 7f 18 0f
RSP: 0018:ffffc900001dfc38 EFLAGS: 00000006
RAX: 00000000a144b8c6 RBX: ffffffff8dfa9400 RCX: ffff88801bfeb980
RDX: 00000000000000b8 RSI: 0000000000000000 RDI: ffffffff92a64040
RBP: 0000000000000004 R08: 0000000000000000 R09: ffffffff81aec9fe
R10: dffffc0000000000 R11: ffffffff81723a40 R12: 00000041501b5add
R13: dffffc0000000000 R14: 0000000000000001 R15: dffffc0000000000
FS:  00007f0e872c26c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c354921 CR3: 000000002b110000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 kvm_clock_get_cycles+0x1f/0x60
 ktime_get+0x90/0x1f0
 perf_swevent_hrtimer+0x442/0x550
 __hrtimer_run_queues+0x4e0/0xc60
 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:_prb_read_valid+0x500/0xa90
Code: c0 0f 84 4a 05 00 00 48 89 c3 48 c1 eb 03 42 80 3c 23 00 74 0f 48 8b 7c 24 48 e8 cb f6 80 00 48 8b 44 24 48 48 83 38 00 74 2b <e8> 7b d3 1d 00 42 80 3c 23 00 48 8b 5c 24 48 74 08 48 89 df e8 a7
RSP: 0018:ffffc900001e0280 EFLAGS: 00000286
RAX: ffffc900001e0580 RBX: 1ffff9200003c0b0 RCX: ffff88801bfeb980
RDX: 0000000000000100 RSI: ffffffffffff48b8 RDI: 0000000000000001
RBP: ffffc900001e0400 R08: ffff88801bfeb980 R09: 0000000000000003
R10: 00000000ffffffff R11: 0000000000000100 R12: dffffc0000000000
R13: 00000000ffffec02 R14: ffffffff8e099210 R15: ffffc900001e0410
 prb_read_valid+0x3c/0x60
 printk_get_next_message+0x15c/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:__list_add_valid_or_report+0x44/0x130
Code: 48 85 d2 0f 84 93 00 00 00 49 89 f6 49 89 ff 49 bd 00 00 00 00 00 fc ff df 4c 8d 63 08 4c 89 e5 48 c1 ed 03 42 80 7c 2d 00 00 <74> 08 4c 89 e7 e8 42 c4 5b fd 4d 39 34 24 75 71 4d 89 f4 49 c1 ec
RSP: 0018:ffffc9000323fa48 EFLAGS: 00000246
RAX: 0000000000000009 RBX: ffffea0000e8d608 RCX: 0000000000000003
RDX: ffffea0000e8d608 RSI: ffff88813663fe30 RDI: ffffea00010fd808
RBP: 1ffffd40001d1ac2 R08: 0000000000000003 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000647f4c R12: ffffea0000e8d610
R13: dffffc0000000000 R14: ffff88813663fe30 R15: ffffea00010fd808
 free_frozen_page_commit+0xe2/0x1070
 __free_frozen_pages+0x78b/0xe70
 __put_partials+0x161/0x1c0
 put_cpu_partial+0x17c/0x250
 __slab_free+0x2f7/0x400
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 getname_flags+0xb8/0x540
 do_sys_openat2+0xbc/0x1c0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e8638e9a9
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:00007f0e872c2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0e865b5fa0 RCX: 00007f0e8638e9a9
RDX: 0000000000000000 RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007f0e86410d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0e865b5fa0 R15: 00007ffc64a9b218
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 8464 Comm: syz.2.805 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-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_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 e2 db 86 03 66
RSP: 0018:ffffc900001e03b8 EFLAGS: 00000046
RAX: 0000000000000116 RBX: ffff888136623900 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 0000000000000116 RDI: 0000000000000838
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81aec9fe
R10: 0000000000000003 R11: ffffffff81702490 R12: 00000000100064a9
R13: dffffc0000000000 R14: 0000000000000116 R15: 0000000000000020
FS:  00007f0e872c26c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c354921 CR3: 000000002b110000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x1cf/0x360
 hrtimer_interrupt+0x620/0xaa0
 __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:ffffc900001e0620 EFLAGS: 00000246
RAX: 1ffffffff1d36927 RBX: ffffffff8e9b4938 RCX: ffff88801bfeb980
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0770 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:__list_add_valid_or_report+0x44/0x130
Code: 48 85 d2 0f 84 93 00 00 00 49 89 f6 49 89 ff 49 bd 00 00 00 00 00 fc ff df 4c 8d 63 08 4c 89 e5 48 c1 ed 03 42 80 7c 2d 00 00 <74> 08 4c 89 e7 e8 42 c4 5b fd 4d 39 34 24 75 71 4d 89 f4 49 c1 ec
RSP: 0018:ffffc9000323fa48 EFLAGS: 00000246
RAX: 0000000000000009 RBX: ffffea0000e8d608 RCX: 0000000000000003
RDX: ffffea0000e8d608 RSI: ffff88813663fe30 RDI: ffffea00010fd808
RBP: 1ffffd40001d1ac2 R08: 0000000000000003 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000647f4c R12: ffffea0000e8d610
R13: dffffc0000000000 R14: ffff88813663fe30 R15: ffffea00010fd808
 free_frozen_page_commit+0xe2/0x1070
 __free_frozen_pages+0x78b/0xe70
 __put_partials+0x161/0x1c0
 put_cpu_partial+0x17c/0x250
 __slab_free+0x2f7/0x400
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 getname_flags+0xb8/0x540
 do_sys_openat2+0xbc/0x1c0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e8638e9a9
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:00007f0e872c2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0e865b5fa0 RCX: 00007f0e8638e9a9
RDX: 0000000000000000 RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007f0e86410d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0e865b5fa0 R15: 00007ffc64a9b218
 </TASK>
