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1
WARNING: fs/btrfs/space-info.h:286 at btrfs_space_info_update_bytes_may_use+0x318/0x650 fs/btrfs/space-info.h:286, CPU#1: syz-executor/6595
Modules linked in:
CPU: 1 UID: 0 PID: 6595 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/10/2026
RIP: 0010:btrfs_space_info_update_bytes_may_use+0x318/0x650 fs/btrfs/space-info.h:286
Code: 00 00 74 08 4c 89 ff e8 16 a3 17 fe 4d 8b 27 4c 89 e7 48 8b 6c 24 18 48 89 ee e8 c3 20 aa fd 49 39 ec 73 1c e8 59 1e aa fd 90 <0f> 0b 90 31 db 43 80 7c 35 00 00 0f 85 48 ff ff ff e9 4b ff ff ff
RSP: 0018:ffffc9001eb57a18 EFLAGS: 00010293
RAX: ffffffff841c4367 RBX: ffffffffffea0000 RCX: ffff888030c9be00
RDX: 0000000000000000 RSI: 0000000000160000 RDI: 000000000015f000
RBP: 0000000000160000 R08: ffffffff9032f8f7 R09: 1ffffffff2065f1e
R10: dffffc0000000000 R11: fffffbfff2065f1f R12: 000000000015f000
R13: 1ffff11004b2e710 R14: dffffc0000000000 R15: ffff888025973880
FS:  000055555d21e500(0000) GS:ffff888125320000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c918d6e5f8 CR3: 000000003280b000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:323 [inline]
 block_rsv_release_bytes fs/btrfs/block-rsv.c:153 [inline]
 btrfs_block_rsv_release+0x47b/0x590 fs/btrfs/block-rsv.c:291
 btrfs_release_global_block_rsv+0x33/0x300 fs/btrfs/block-rsv.c:462
 btrfs_free_block_groups+0xdf1/0x1090 fs/btrfs/block-group.c:4777
 close_ctree+0x788/0x11b0 fs/btrfs/disk-io.c:4542
 generic_shutdown_super+0x13d/0x2d0 fs/super.c:647
 kill_anon_super+0x3b/0x70 fs/super.c:1232
 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2154
 deactivate_locked_super+0xbc/0x130 fs/super.c:477
 cleanup_mnt+0x3d3/0x460 fs/namespace.c:1317
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:70 [inline]
 exit_to_user_mode_loop+0x1fa/0x730 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f59be19e097
Code: a2 c7 05 5c 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffcf1e70188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f59be2322ca RCX: 00007f59be19e097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf1e70240
RBP: 00007ffcf1e70240 R08: 00007ffcf1e71240 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf1e712d0
R13: 00007f59be2322ca R14: 000000000012705c R15: 00007ffcf1e71310
 </TASK>