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: 5557 Comm: syz.3.41 Not tainted 6.10.0-syzkaller-12857-g910bfc26d16d #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 75 25 c1 fd 48 c7 c7 00 40 2e 8c 48 c7 c6 c0 40 2e 8c 48 c7 c2 a0 3f 2e 8c b9 67 03 00 00 e8 e6 37 d7 07 90 <0f> 0b e8 3e 37 da 07 4c 89 ff be 08 00 00 00 e8 e1 3a 25 fe 4c 89 RSP: 0018:ffffc90003b3f280 EFLAGS: 00010246 RAX: 0000000000000045 RBX: 00fff00000004128 RCX: 10dee571568efb00 RDX: ffffc90009b34000 RSI: 0000000000011b0f RDI: 0000000000011b10 RBP: ffffc90003b3f350 R08: ffffffff8173defc R09: 1ffff92000767df0 R10: dffffc0000000000 R11: fffff52000767df1 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffea0001e14a00 FS: 00007ff74ddff6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005580a1eb6b40 CR3: 000000002e426000 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+0x53/0xe0 fs/btrfs/file.c:3780 btrfs_wait_ordered_range+0x59/0x260 fs/btrfs/ordered-data.c:898 btrfs_fallocate+0xb6b/0x2030 fs/btrfs/file.c:3116 vfs_fallocate+0x553/0x6c0 fs/open.c:334 ksys_fallocate fs/open.c:357 [inline] __do_sys_fallocate fs/open.c:365 [inline] __se_sys_fallocate fs/open.c:363 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:363 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: 0033:0x7ff74e377299 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:00007ff74ddff048 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007ff74e505f80 RCX: 00007ff74e377299 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007ff74e3e48e6 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff74e505f80 R15: 00007ffeeed17688 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 75 25 c1 fd 48 c7 c7 00 40 2e 8c 48 c7 c6 c0 40 2e 8c 48 c7 c2 a0 3f 2e 8c b9 67 03 00 00 e8 e6 37 d7 07 90 <0f> 0b e8 3e 37 da 07 4c 89 ff be 08 00 00 00 e8 e1 3a 25 fe 4c 89 RSP: 0018:ffffc90003b3f280 EFLAGS: 00010246 RAX: 0000000000000045 RBX: 00fff00000004128 RCX: 10dee571568efb00 RDX: ffffc90009b34000 RSI: 0000000000011b0f RDI: 0000000000011b10 RBP: ffffc90003b3f350 R08: ffffffff8173defc R09: 1ffff92000767df0 R10: dffffc0000000000 R11: fffff52000767df1 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffea0001e14a00 FS: 00007ff74ddff6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f470df66731 CR3: 000000002e426000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400