assertion failed: block_start != EXTENT_MAP_HOLE, in fs/btrfs/extent_io.c:1350 ------------[ cut here ]------------ kernel BUG at fs/btrfs/extent_io.c:1350! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 7131 Comm: syz.2.33 Not tainted 6.13.0-rc6-syzkaller-00262-gb62cef9a5c67 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:submit_one_sector fs/btrfs/extent_io.c:1350 [inline] RIP: 0010:extent_writepage_io+0xcc5/0xd50 fs/btrfs/extent_io.c:1435 Code: 45 fd 90 0f 0b e8 1b fe dd fd 48 c7 c7 a0 01 4c 8c 48 c7 c6 e0 0e 4c 8c 48 c7 c2 40 01 4c 8c b9 46 05 00 00 e8 5c 8e 45 fd 90 <0f> 0b e8 f4 fd dd fd 4c 89 e7 48 c7 c6 20 06 4c 8c e8 c5 75 25 fe RSP: 0018:ffffc900043def20 EFLAGS: 00010246 RAX: 000000000000004e RBX: ffffea000169a288 RCX: 84d8a9d88f52a700 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900043df090 R08: ffffffff817f0acc R09: 1ffff9200087bd80 R10: dffffc0000000000 R11: fffff5200087bd81 R12: ffffea000169a280 R13: dffffc0000000000 R14: fffffffffffffffd R15: 0000000000007000 FS: 00007f3ce11dd6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbe4f6c2723 CR3: 000000007f1f0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: extent_writepage fs/btrfs/extent_io.c:1505 [inline] extent_write_cache_pages fs/btrfs/extent_io.c:2194 [inline] btrfs_writepages+0x13f1/0x20e0 fs/btrfs/extent_io.c:2325 do_writepages+0x35f/0x880 mm/page-writeback.c:2702 filemap_fdatawrite_wbc mm/filemap.c:388 [inline] __filemap_fdatawrite_range mm/filemap.c:421 [inline] filemap_fdatawrite_range+0x215/0x2c0 mm/filemap.c:439 btrfs_fdatawrite_range+0x53/0xe0 fs/btrfs/file.c:3720 btrfs_direct_write+0x554/0xa30 fs/btrfs/direct-io.c:961 btrfs_do_write_iter+0x2a0/0x760 fs/btrfs/file.c:1397 do_iter_readv_writev+0x600/0x880 vfs_writev+0x376/0xba0 fs/read_write.c:1050 do_pwritev fs/read_write.c:1146 [inline] __do_sys_pwritev2 fs/read_write.c:1204 [inline] __se_sys_pwritev2+0x196/0x2b0 fs/read_write.c:1195 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: 0033:0x7f3ce1f7dff9 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:00007f3ce11dd038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007f3ce2136130 RCX: 00007f3ce1f7dff9 RDX: 0000000000000001 RSI: 0000000020000240 RDI: 0000000000000004 RBP: 00007f3ce1ff0296 R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000007800 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f3ce2136130 R15: 00007ffd4b8c4d88 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:submit_one_sector fs/btrfs/extent_io.c:1350 [inline] RIP: 0010:extent_writepage_io+0xcc5/0xd50 fs/btrfs/extent_io.c:1435 Code: 45 fd 90 0f 0b e8 1b fe dd fd 48 c7 c7 a0 01 4c 8c 48 c7 c6 e0 0e 4c 8c 48 c7 c2 40 01 4c 8c b9 46 05 00 00 e8 5c 8e 45 fd 90 <0f> 0b e8 f4 fd dd fd 4c 89 e7 48 c7 c6 20 06 4c 8c e8 c5 75 25 fe RSP: 0018:ffffc900043def20 EFLAGS: 00010246 RAX: 000000000000004e RBX: ffffea000169a288 RCX: 84d8a9d88f52a700 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900043df090 R08: ffffffff817f0acc R09: 1ffff9200087bd80 R10: dffffc0000000000 R11: fffff5200087bd81 R12: ffffea000169a280 R13: dffffc0000000000 R14: fffffffffffffffd R15: 0000000000007000 FS: 00007f3ce11dd6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2ad021b000 CR3: 000000007f1f0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400