rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=057c/1/0x4000000000000000 softirq=16435/22216 fqs=4825
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   939695       6068            0
rcu: 	cputime:    23855      28567          155   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=8593 q=3709 ncpus=2)
CPU: 0 UID: 0 PID: 6229 Comm: syz.0.151 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:__run_timer_base+0xc8/0x860
Code: 8d e8 ec 67 75 00 48 8b 1d b5 2d 33 0c 48 8b 44 24 18 4c 8d 70 50 4c 89 f0 48 c1 e8 03 48 89 84 24 80 00 00 00 42 80 3c 20 00 <74> 08 4c 89 f7 e8 be 67 75 00 4c 89 b4 24 88 00 00 00 4d 8b 36 48
RSP: 0018:ffffc90000007ca0 EFLAGS: 00000246
RAX: 1ffff1100960491a RBX: 00000000ffffce3b RCX: ffff888107e0b980
RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff88804b024880
RBP: ffffc90000007e10 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: ffffffff81ae05f0 R12: dffffc0000000000
R13: 0000000000000002 R14: ffff88804b0248d0 R15: ffffffff8de0c0c8
FS:  00007f617d4366c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555b74c588 CR3: 000000010b7d6000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 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 8b 2d 21 f6 e8 c6 00 58 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:ffffc90006946b80 EFLAGS: 00000282
RAX: c99168cecae71f00 RBX: 0000000000000000 RCX: c99168cecae71f00
RDX: 0000000000000007 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc90006946c20 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000d28d70
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:unwind_get_return_address+0x63/0x90
Code: 37 00 74 08 48 89 df e8 fb a2 b0 00 48 8b 3b e8 93 a3 1a 00 85 c0 74 14 43 80 3c 37 00 74 08 48 89 df e8 e0 a2 b0 00 48 8b 03 <eb> 02 31 c0 5b 41 5e 41 5f e9 3f ba fe 09 cc 89 d9 80 e1 07 80 c1
RSP: 0018:ffffc90006946ce8 EFLAGS: 00000246
RAX: ffffffff8218dbbc RBX: ffffc90006946d50 RCX: c99168cecae71f00
RDX: 0000000000000001 RSI: ffffffff8db8655b RDI: ffffffff8218dbbc
RBP: ffffc90006946d90 R08: ffffc90006947490 R09: 0000000000000000
R10: ffffc90006946d58 R11: fffff52000d28dad R12: ffff888107e0b980
R13: 1ffff92000d28dcc R14: dffffc0000000000 R15: 1ffff92000d28daa
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 save_stack+0xf5/0x1f0
 __set_page_owner+0x8d/0x4a0
 post_alloc_hook+0x240/0x2a0
 get_page_from_freelist+0x21e4/0x22c0
 __alloc_frozen_pages_noprof+0x181/0x370
 alloc_pages_mpol+0x232/0x4a0
 allocate_slab+0x8a/0x3b0
 ___slab_alloc+0xbfc/0x1480
 __kmalloc_noprof+0x305/0x4f0
 tomoyo_realpath_from_path+0xe3/0x5d0
 tomoyo_check_open_permission+0x1c1/0x3b0
 security_file_open+0xb1/0x270
 do_dentry_open+0x35e/0x1970
 vfs_open+0x3b/0x340
 path_openat+0x2ee5/0x3830
 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: 0033:0x7f617c58e9a9
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:00007f617d436038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f617c7b5fa0 RCX: 00007f617c58e9a9
RDX: 00000000000026e1 RSI: 00002000000005c0 RDI: ffffffffffffff9c
RBP: 00007f617c610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f617c7b5fa0 R15: 00007ffce8325338
 </TASK>
