Hello, syzbot found the following issue on: HEAD commit: 1b29d271614a Merge tag 'staging-6.4-rc7' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=116de987280000 kernel config: https://syzkaller.appspot.com/x/.config?x=ac246111fb601aec dashboard link: https://syzkaller.appspot.com/bug?extid=c0f3acf145cb465426d5 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1061d897280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10109e6b280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/16519d7a3fc8/disk-1b29d271.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d2cd6e97f1df/vmlinux-1b29d271.xz kernel image: https://storage.googleapis.com/syzbot-assets/a7781abe10c9/bzImage-1b29d271.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/c7b9c660b7de/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c0f3acf145cb465426d5@xxxxxxxxxxxxxxxxxxxxxxxxx assertion failed: fs_info->exclusive_operation == BTRFS_EXCLOP_BALANCE_PAUSED, in fs/btrfs/ioctl.c:465 ------------[ cut here ]------------ kernel BUG at fs/btrfs/messages.c:259! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 6823 Comm: syz-executor250 Not tainted 6.4.0-rc6-syzkaller-00269-g1b29d271614a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:btrfs_assertfail+0x2c/0x30 fs/btrfs/messages.c:259 Code: 1f 00 41 55 41 89 d5 41 54 49 89 f4 55 48 89 fd e8 99 de f6 fd 44 89 e9 4c 89 e2 48 89 ee 48 c7 c7 c0 92 97 8a e8 b4 c2 da fd <0f> 0b 66 90 66 0f 1f 00 55 48 89 fd e8 73 de f6 fd 48 89 ef 5d 48 RSP: 0018:ffffc9000ce67c10 EFLAGS: 00010286 RAX: 0000000000000066 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8168bd1c RDI: 0000000000000005 RBP: ffffffff8a9626c0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff8a961a40 R13: 00000000000001d1 R14: ffff888019fcbc00 R15: ffff888014ae0678 FS: 00007fb611b0d700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb61190e000 CR3: 000000007aa80000 CR4: 0000000000350ee0 Call Trace: <TASK> btrfs_exclop_balance fs/btrfs/ioctl.c:465 [inline] btrfs_ioctl_balance fs/btrfs/ioctl.c:3564 [inline] btrfs_ioctl+0x531e/0x5b30 fs/btrfs/ioctl.c:4632 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb618fa5c59 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 15 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb611b0d208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb61902f7c8 RCX: 00007fb618fa5c59 RDX: 0000000020000540 RSI: 00000000c4009420 RDI: 0000000000000004 RBP: 00007fb61902f7c0 R08: 00007fb611b0d700 R09: 0000000000000000 R10: 00007fb611b0d700 R11: 0000000000000246 R12: 00007fb61902f7cc R13: 00007fff0865c5cf R14: 00007fb611b0d300 R15: 0000000000022000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:btrfs_assertfail+0x2c/0x30 fs/btrfs/messages.c:259 Code: 1f 00 41 55 41 89 d5 41 54 49 89 f4 55 48 89 fd e8 99 de f6 fd 44 89 e9 4c 89 e2 48 89 ee 48 c7 c7 c0 92 97 8a e8 b4 c2 da fd <0f> 0b 66 90 66 0f 1f 00 55 48 89 fd e8 73 de f6 fd 48 89 ef 5d 48 RSP: 0018:ffffc9000ce67c10 EFLAGS: 00010286 RAX: 0000000000000066 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8168bd1c RDI: 0000000000000005 RBP: ffffffff8a9626c0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff8a961a40 R13: 00000000000001d1 R14: ffff888019fcbc00 R15: ffff888014ae0678 FS: 00007fb611b0d700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb61190e000 CR3: 000000007aa80000 CR4: 0000000000350ee0 --- 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 bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
