loop0: detected capacity change from 0 to 32768
BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5326)
BTRFS info (device loop0): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
BTRFS info (device loop0): using crc32c (crc32c-x86_64) checksum algorithm
BTRFS info (device loop0): using free-space-tree
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-00624-g2f2d52945852 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 fail_dump lib/fault-inject.c:73 [inline]
 should_fail_ex+0x40a/0x550 lib/fault-inject.c:174
 should_failslab+0xac/0x100 mm/failslab.c:46
 slab_pre_alloc_hook mm/slub.c:4091 [inline]
 slab_alloc_node mm/slub.c:4167 [inline]
 kmem_cache_alloc_noprof+0x70/0x380 mm/slub.c:4194
 alloc_extent_map+0x21/0xf0 fs/btrfs/extent_map.c:48
 btrfs_create_io_em+0x234/0x660 fs/btrfs/inode.c:7206
 btrfs_create_dio_extent+0x49/0x160 fs/btrfs/direct-io.c:148
 btrfs_new_extent_direct fs/btrfs/direct-io.c:203 [inline]
 btrfs_get_blocks_direct_write+0x96f/0xfa0 fs/btrfs/direct-io.c:320
 btrfs_dio_iomap_begin+0xb6c/0x1140 fs/btrfs/direct-io.c:524
 iomap_iter+0x50c/0xe00 fs/iomap/iter.c:109
 __iomap_dio_rw+0xe93/0x2560 fs/iomap/direct-io.c:733
 btrfs_dio_write fs/btrfs/direct-io.c:774 [inline]
 btrfs_direct_write+0x610/0xa30 fs/btrfs/direct-io.c:879
 btrfs_do_write_iter+0x2a0/0x7c0 fs/btrfs/file.c:1381
 aio_write+0x56b/0x7c0 fs/aio.c:1633
 io_submit_one+0x8a7/0x18a0 fs/aio.c:2052
 __do_sys_io_submit fs/aio.c:2111 [inline]
 __se_sys_io_submit+0x171/0x2e0 fs/aio.c:2081
 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: 0033:0x7fcf6318d169
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:00007fcf63f87038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00007fcf633a5fa0 RCX: 00007fcf6318d169
RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007fcf63f3d000
RBP: 00007fcf63f87090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007fcf633a5fa0 R15: 00007ffe13685868
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5326 at fs/btrfs/space-info.h:255 btrfs_space_info_update_bytes_may_use fs/btrfs/space-info.h:255 [inline]
WARNING: CPU: 0 PID: 5326 at fs/btrfs/space-info.h:255 btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:287 [inline]
WARNING: CPU: 0 PID: 5326 at fs/btrfs/space-info.h:255 btrfs_free_reserved_data_space_noquota+0x2f0/0x510 fs/btrfs/delalloc-space.c:179
Modules linked in:
CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-00624-g2f2d52945852 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:btrfs_space_info_update_bytes_may_use fs/btrfs/space-info.h:255 [inline]
RIP: 0010:btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:287 [inline]
RIP: 0010:btrfs_free_reserved_data_space_noquota+0x2f0/0x510 fs/btrfs/delalloc-space.c:179
Code: 00 00 74 08 48 89 df e8 6e 69 1c fe 48 8b 2b 48 89 ef 48 8b 5c 24 10 48 89 de e8 6b 18 b5 fd 48 39 dd 73 1d e8 01 16 b5 fd 90 <0f> 0b 90 31 ed 48 8b 1c 24 43 80 7c 3d 00 00 0f 85 7a ff ff ff eb
RSP: 0018:ffffc9000d467178 EFLAGS: 00010293
RAX: ffffffff840cdb2f RBX: 0000000000800000 RCX: ffff888000528000
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000000603000
RBP: 0000000000603000 R08: ffffffff840cdb25 R09: 1ffffffff2079c4e
R10: dffffc0000000000 R11: fffffbfff2079c4f R12: ffffffffff800000
R13: 1ffff1100a51350d R14: ffff88805289a800 R15: dffffc0000000000
FS:  00007fcf63f876c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556bd2831000 CR3: 0000000034aa2000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_free_reserved_data_space+0xa2/0xe0 fs/btrfs/delalloc-space.c:199
 btrfs_dio_iomap_begin+0x764/0x1140 fs/btrfs/direct-io.c:597
 iomap_iter+0x50c/0xe00 fs/iomap/iter.c:109
 __iomap_dio_rw+0xe93/0x2560 fs/iomap/direct-io.c:733
 btrfs_dio_write fs/btrfs/direct-io.c:774 [inline]
 btrfs_direct_write+0x610/0xa30 fs/btrfs/direct-io.c:879
 btrfs_do_write_iter+0x2a0/0x7c0 fs/btrfs/file.c:1381
 aio_write+0x56b/0x7c0 fs/aio.c:1633
 io_submit_one+0x8a7/0x18a0 fs/aio.c:2052
 __do_sys_io_submit fs/aio.c:2111 [inline]
 __se_sys_io_submit+0x171/0x2e0 fs/aio.c:2081
 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: 0033:0x7fcf6318d169
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:00007fcf63f87038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00007fcf633a5fa0 RCX: 00007fcf6318d169
RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007fcf63f3d000
RBP: 00007fcf63f87090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007fcf633a5fa0 R15: 00007ffe13685868
 </TASK>