assertion failed: folio_test_locked(folio), in fs/btrfs/subpage.c:871 ------------[ cut here ]------------ kernel BUG at fs/btrfs/subpage.c:871! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 9991 Comm: syz.3.616 Not tainted 6.10.0-syzkaller-12246-g786c8248dbd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:btrfs_folio_end_all_writers+0x55b/0x610 fs/btrfs/subpage.c:871 Code: e9 d3 fb ff ff e8 a5 02 c1 fd 48 c7 c7 40 76 0e 8c 48 c7 c6 00 77 0e 8c 48 c7 c2 e0 75 0e 8c b9 67 03 00 00 e8 c6 83 b2 07 90 <0f> 0b e8 de 82 b5 07 4c 89 ff be 08 00 00 00 e8 b1 15 25 fe 4c 89 RSP: 0018:ffffc90002e970c0 EFLAGS: 00010246 RAX: 0000000000000045 RBX: 00fff0000000412c RCX: 67ad3023ba2bdd00 RDX: ffffc90009ed3000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90002e97190 R08: ffffffff8173e03c R09: 1ffff920005d2db8 R10: dffffc0000000000 R11: fffff520005d2db9 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffea0000441340 FS: 00007f228a9de6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056286e9b2950 CR3: 000000005ef50000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __extent_writepage fs/btrfs/extent_io.c:1597 [inline] extent_write_cache_pages fs/btrfs/extent_io.c:2251 [inline] btrfs_writepages+0x14d7/0x2760 fs/btrfs/extent_io.c:2373 do_writepages+0x35d/0x870 mm/page-writeback.c:2683 filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:397 __filemap_fdatawrite_range mm/filemap.c:430 [inline] filemap_fdatawrite_range+0x120/0x180 mm/filemap.c:448 btrfs_fdatawrite_range fs/btrfs/file.c:3780 [inline] start_ordered_ops fs/btrfs/file.c:1563 [inline] btrfs_sync_file+0x2b3/0x1060 fs/btrfs/file.c:1638 generic_write_sync include/linux/fs.h:2816 [inline] btrfs_do_write_iter+0x5e2/0x760 fs/btrfs/file.c:1515 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f228af75f19 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:00007f228a9de048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f228b106038 RCX: 00007f228af75f19 RDX: 0000000000000078 RSI: 0000000020000440 RDI: 0000000000000005 RBP: 00007f228afe4e68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f228b106038 R15: 00007ffd1f2de948 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:btrfs_folio_end_all_writers+0x55b/0x610 fs/btrfs/subpage.c:871 Code: e9 d3 fb ff ff e8 a5 02 c1 fd 48 c7 c7 40 76 0e 8c 48 c7 c6 00 77 0e 8c 48 c7 c2 e0 75 0e 8c b9 67 03 00 00 e8 c6 83 b2 07 90 <0f> 0b e8 de 82 b5 07 4c 89 ff be 08 00 00 00 e8 b1 15 25 fe 4c 89 RSP: 0018:ffffc90002e970c0 EFLAGS: 00010246 RAX: 0000000000000045 RBX: 00fff0000000412c RCX: 67ad3023ba2bdd00 RDX: ffffc90009ed3000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90002e97190 R08: ffffffff8173e03c R09: 1ffff920005d2db8 R10: dffffc0000000000 R11: fffff520005d2db9 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffea0000441340 FS: 00007f228a9de6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c2ac132058 CR3: 000000005ef50000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400