page last free pid 9930 tgid 9930 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1397 [inline]
 __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
 rcu_do_batch kernel/rcu/tree.c:2617 [inline]
 rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869
 handle_softirqs+0x22a/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
------------[ cut here ]------------
kernel BUG at mm/filemap.c:860!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 11606 Comm: syz.3.1145 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__filemap_add_folio+0x11bc/0x1330 mm/filemap.c:859
Code: 15 c3 ff 4c 89 e7 48 c7 c6 40 b8 d7 8b e8 1c 6b 25 ff 90 0f 0b e8 54 15 c3 ff 4c 89 e7 48 c7 c6 40 ac d7 8b e8 05 6b 25 ff 90 <0f> 0b e8 3d 15 c3 ff 4c 89 e7 48 c7 c6 40 b8 d7 8b e8 ee 6a 25 ff
RSP: 0018:ffffc900055775c0 EFLAGS: 00010246
RAX: 4dc1d237aeef3700 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dfa4f3d RDI: 00000000ffffffff
RBP: ffffc90005577740 R08: ffffffff903037f7 R09: 1ffffffff20606fe
R10: dffffc0000000000 R11: fffffbfff20606ff R12: ffffea0000a07840
R13: dffffc0000000000 R14: ffffea0000a07848 R15: 0000000000000004
FS:  00005555941bc500(0000) GS:ffff8881252a0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30123ffc CR3: 00000000679f2000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 filemap_add_folio+0x264/0x530 mm/filemap.c:967
 ra_alloc_folio mm/readahead.c:456 [inline]
 page_cache_ra_order+0x6a9/0xe80 mm/readahead.c:515
 do_sync_mmap_readahead+0x6ad/0x8e0 mm/filemap.c:3406
 filemap_fault+0x703/0x1300 mm/filemap.c:3555
 __do_fault+0x138/0x2a0 mm/memory.c:5474
 do_shared_fault mm/memory.c:5973 [inline]
 do_fault mm/memory.c:6047 [inline]
 do_pte_missing+0x601/0x33f0 mm/memory.c:4566
 handle_pte_fault mm/memory.c:6427 [inline]
 __handle_mm_fault mm/memory.c:6565 [inline]
 handle_mm_fault+0x1bf2/0x3170 mm/memory.c:6734
 do_user_addr_fault+0xa73/0x1340 arch/x86/mm/fault.c:1334
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fac1a6665a2
Code: 30 48 8b 14 24 48 85 d2 74 17 8b 44 24 10 0f c8 89 c0 48 89 44 24 10 48 83 fa 01 0f 85 aa 02 00 00 48 8b 44 24 18 8b 74 24 10 <89> 30 e9 1e fe ff ff 48 8b 44 24 18 8b 10 48 8b 04 24 48 85 c0 0f
RSP: 002b:00007fffddbc5ad0 EFLAGS: 00010246
RAX: 0000200000000200 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000018 RDI: 00005555941bc3d8
RBP: 00007fffddbc5bf0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000018 R11: 0000000000000000 R12: 00007fffddbc5c30
R13: 00007fac1aa1609c R14: 00000000000a2695 R15: 00007fffddbc5c10
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1330 mm/filemap.c:859
Code: 15 c3 ff 4c 89 e7 48 c7 c6 40 b8 d7 8b e8 1c 6b 25 ff 90 0f 0b e8 54 15 c3 ff 4c 89 e7 48 c7 c6 40 ac d7 8b e8 05 6b 25 ff 90 <0f> 0b e8 3d 15 c3 ff 4c 89 e7 48 c7 c6 40 b8 d7 8b e8 ee 6a 25 ff
RSP: 0018:ffffc900055775c0 EFLAGS: 00010246
RAX: 4dc1d237aeef3700 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dfa4f3d RDI: 00000000ffffffff
RBP: ffffc90005577740 R08: ffffffff903037f7 R09: 1ffffffff20606fe
R10: dffffc0000000000 R11: fffffbfff20606ff R12: ffffea0000a07840
R13: dffffc0000000000 R14: ffffea0000a07848 R15: 0000000000000004
FS:  00005555941bc500(0000) GS:ffff8881253a0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff72e00fa4 CR3: 00000000679f2000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600