Hello, syzbot found the following issue on: HEAD commit: 5a6a09e97199 Merge tag 'cgroup-for-6.7' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=132ed3e3680000 kernel config: https://syzkaller.appspot.com/x/.config?x=414f578e7f8d77a7 dashboard link: https://syzkaller.appspot.com/bug?extid=42e831f5d4d8616b0e8f compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/bd30039dd1a9/disk-5a6a09e9.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7dac0c0db854/vmlinux-5a6a09e9.xz kernel image: https://storage.googleapis.com/syzbot-assets/4d1318c50c57/bzImage-5a6a09e9.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+42e831f5d4d8616b0e8f@xxxxxxxxxxxxxxxxxxxxxxxxx assertion failed: space_info->reclaim_size >= ticket->bytes, in fs/btrfs/space-info.c:436 ------------[ cut here ]------------ kernel BUG at fs/btrfs/space-info.c:436! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 25603 Comm: syz-executor.2 Not tainted 6.6.0-syzkaller-03860-g5a6a09e97199 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:remove_ticket fs/btrfs/space-info.c:436 [inline] RIP: 0010:btrfs_try_granting_tickets+0x59f/0x5d0 fs/btrfs/space-info.c:468 Code: fe e9 ca fa ff ff e8 a0 ca d8 fd 48 c7 c7 e0 16 8d 8b 48 c7 c6 a0 1d 8d 8b 48 c7 c2 60 17 8d 8b b9 b4 01 00 00 e8 11 02 54 07 <0f> 0b e8 7a ca d8 fd 48 c7 c7 e0 16 8d 8b 48 c7 c6 40 17 8d 8b 48 RSP: 0018:ffffc90015f07188 EFLAGS: 00010246 RAX: 0000000000000059 RBX: ffffffffffff2000 RCX: 7562ac8ccb7a8d00 RDX: ffffc9000bd65000 RSI: 000000000000a0ff RDI: 000000000000a100 RBP: 0000000000060000 R08: ffffffff81716b8c R09: 1ffff92002be0dd0 R10: dffffc0000000000 R11: fffff52002be0dd1 R12: ffff8880293b90f0 R13: ffffc9000ac0f6e0 R14: dffffc0000000000 R15: 1ffff1100527721e FS: 00007fca38d826c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f27f6881000 CR3: 00000000365f7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:232 [inline] block_rsv_release_bytes fs/btrfs/block-rsv.c:154 [inline] btrfs_block_rsv_release+0x506/0x5f0 fs/btrfs/block-rsv.c:295 btrfs_delayed_refs_rsv_release+0x9f/0x110 fs/btrfs/delayed-ref.c:75 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2038 [inline] __btrfs_run_delayed_refs+0x1e34/0x4810 fs/btrfs/extent-tree.c:2106 btrfs_run_delayed_refs+0xe3/0x2c0 fs/btrfs/extent-tree.c:2218 btrfs_commit_transaction+0x4ba/0x3730 fs/btrfs/transaction.c:2237 sync_filesystem+0x1c0/0x220 fs/sync.c:66 btrfs_remount+0x231/0x14b0 fs/btrfs/super.c:1649 reconfigure_super+0x440/0x870 fs/super.c:1140 do_remount fs/namespace.c:2884 [inline] path_mount+0xc24/0xfa0 fs/namespace.c:3656 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3863 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fca3807e1ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fca38d81ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fca38d81f80 RCX: 00007fca3807e1ea RDX: 0000000020000180 RSI: 0000000020000140 RDI: 0000000000000000 RBP: 0000000020000180 R08: 00007fca38d81f80 R09: 00000000039600ac R10: 00000000039600ac R11: 0000000000000202 R12: 0000000020000140 R13: 00007fca38d81f40 R14: 0000000000000000 R15: 0000000020000080 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:remove_ticket fs/btrfs/space-info.c:436 [inline] RIP: 0010:btrfs_try_granting_tickets+0x59f/0x5d0 fs/btrfs/space-info.c:468 Code: fe e9 ca fa ff ff e8 a0 ca d8 fd 48 c7 c7 e0 16 8d 8b 48 c7 c6 a0 1d 8d 8b 48 c7 c2 60 17 8d 8b b9 b4 01 00 00 e8 11 02 54 07 <0f> 0b e8 7a ca d8 fd 48 c7 c7 e0 16 8d 8b 48 c7 c6 40 17 8d 8b 48 RSP: 0018:ffffc90015f07188 EFLAGS: 00010246 RAX: 0000000000000059 RBX: ffffffffffff2000 RCX: 7562ac8ccb7a8d00 RDX: ffffc9000bd65000 RSI: 000000000000a0ff RDI: 000000000000a100 RBP: 0000000000060000 R08: ffffffff81716b8c R09: 1ffff92002be0dd0 R10: dffffc0000000000 R11: fffff52002be0dd1 R12: ffff8880293b90f0 R13: ffffc9000ac0f6e0 R14: dffffc0000000000 R15: 1ffff1100527721e FS: 00007fca38d826c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f27f6881000 CR3: 00000000365f7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
