BTRFS info (device loop4 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
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1
WARNING: fs/btrfs/space-info.h:275 at btrfs_space_info_update_bytes_may_use+0x318/0x650 fs/btrfs/space-info.h:275, CPU#1: syz.4.16/6030
Modules linked in:
CPU: 1 UID: 0 PID: 6030 Comm: syz.4.16 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:btrfs_space_info_update_bytes_may_use+0x318/0x650 fs/btrfs/space-info.h:275
Code: 00 00 74 08 4c 89 ff e8 16 d0 1d fe 4d 8b 27 4c 89 e7 48 8b 6c 24 18 48 89 ee e8 93 69 b4 fd 49 39 ec 73 1c e8 29 67 b4 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:ffffc9000515f650 EFLAGS: 00010293
RAX: ffffffff8411ba67 RBX: fffffffffff00000 RCX: ffff88803029bd00
RDX: 0000000000000000 RSI: 0000000000100000 RDI: 00000000000ff000
RBP: 0000000000100000 R08: ffffffff9031b4f7 R09: 1ffffffff206369e
R10: dffffc0000000000 R11: fffffbfff206369f R12: 00000000000ff000
R13: 1ffff11006ce0410 R14: dffffc0000000000 R15: ffff888036702080
FS:  0000000000000000(0000) GS:ffff88812535c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fae597ff000 CR3: 000000005fd62000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:312 [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+0xdf0/0x1090 fs/btrfs/block-group.c:4750
 close_ctree+0x807/0x12f0 fs/btrfs/disk-io.c:4458
 generic_shutdown_super+0x13d/0x2d0 fs/super.c:646
 kill_anon_super+0x3b/0x70 fs/super.c:1292
 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2127
 deactivate_locked_super+0xbc/0x130 fs/super.c:476
 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x70f/0x22c0 kernel/exit.c:975
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117
 get_signal+0x1284/0x1330 kernel/signal.c:3037
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:328 [inline]
 do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fca1755d04e
Code: Unable to access opcode bytes at 0x7fca1755d024.
RSP: 002b:00007fca183aaf58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6
RAX: fffffffffffffdfc RBX: 00007fca183ab6c0 RCX: 00007fca1755d04e
RDX: 00007fca183aafb0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fca17632c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fca17816038 R14: 00007fca17815fa0 R15: 00007fffd21fb328
 </TASK>