Backintime crashes when trying to delete old backup

[afettouhi]

Still fixed with PR #2099 but not yet released.

Describe the problem, feature or ask a question:

I have an old backup of my main pc on my FreeNAS/TrueNAS server and was going to delete it but when I click the trash icon in the GUI backintime crashes immediately. Below is the output when running it in a terminal (Arch Linux with Plasma 6):

[af@andre ~]$ backintime-qt

Back In Time
Version: 1.5.5
Back In Time comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type backintime --license' for details.`

INFO: Mountpoint /home/af/.local/share/backintime/mnt/1D426820/mountpoint is already mounted
Traceback (most recent call last):
File "/usr/share/backintime/qt/app.py", line 2234, in run
self.config.inhibitCookie = tools.inhibitSuspend(toplevel_xid = self.config.xWindowId,
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
reason = 'deleting snapshots')
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/share/backintime/common/tools.py", line 2045, in inhibitSuspend
cookie = proxy(*[(app_id, dbus.UInt32(toplevel_xid), reason, dbus.UInt32(flags))[i] for i in dbus_props['arguments']])
~~~~~~~~~~~^^^^^^^^^^^^^^
OverflowError: Value -1654798416 out of range for UInt32
/usr/bin/backintime-qt: linje 26: 33191 Afbrudt (SIGABRT) (smed kerne) /usr/bin/python -Es ${APP_PATH}/app.py "$@"

[buhtz]

Hello André,
thank you for reporting this. It is a known problem. But to my knowledge it is rare.

Please see https://github.com/bit-team/backintime?tab=readme-ov-file#overflowerror-value-1702441408-out-of-range-for-uint32 for details and how to fix it.

Also please post the output of backintime --diagnostics.

Regards,
Christian

[afettouhi]

[af@andre ~]$ backintime --diagnostics
QSettings::value: Empty key passed
<sys>:0: Warning: g_main_context_pop_thread_default: assertion 'stack != NULL' failed
{
    "backintime": {
        "name": "Back In Time",
        "version": "1.5.5",
        "running-as-root": false,
        "latest-config-version": 6,
        "local-config-file": "/home/UsernameReplaced/.config/backintime/config",
        "local-config-file-found": true,
        "global-config-file": "/etc/backintime/config",
        "global-config-file-found": false,
        "started-from": "/usr/share/backintime/common",
        "user-callback": "/home/UsernameReplaced/.config/backintime/user-callback",
        "keyring-supported": true
    },
    "host-setup": {
        "OS": {
            "/etc/os-release": "Arch Linux",
            "/etc/arch-release": "\n",
            "/etc/lsb-release": "DISTRIB_ID=\"Arch\"\nDISTRIB_RELEASE=\"rolling\"\nDISTRIB_DESCRIPTION=\"Arch Linux\"\n"
        },
        "platform": "Linux-6.15.5-arch1-1-x86_64-with-glibc2.41",
        "system": "Linux #1 SMP PREEMPT_DYNAMIC Sun, 06 Jul 2025 11:14:36 +0000",
        "display-system": "wayland",
        "locale": "da_DK, UTF-8",
        "PATH": "/usr/local/sbin:/usr/local/bin:/usr/bin:/opt/cuda/bin:/opt/cuda/nsight_compute:/opt/cuda/nsight_systems/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl",
        "RSYNC_OLD_ARGS": "(not set)",
        "RSYNC_PROTECT_ARGS": "(not set)"
    },
    "python-setup": {
        "python": "3.13.5 main Jun 21 2025 09:35:00 CPython GCC 15.1.1 20250425",
        "python-executable": "/usr/bin/python",
        "python-executable-symlink": true,
        "python-executable-resolved": "/usr/bin/python3.13",
        "sys.path": [
            "/usr/share/backintime/qt/plugins",
            "/usr/share/backintime/common/plugins",
            "/usr/share/backintime/plugins",
            "/usr/share/backintime/common",
            "/usr/lib/python313.zip",
            "/usr/lib/python3.13",
            "/usr/lib/python3.13/lib-dynload",
            "/usr/lib/python3.13/site-packages"
        ],
        "qt": {
            "Version": "PyQt 6.9.1 / Qt 6.9.1",
            "Theme": "Newaita-dark",
            "Theme Search Paths": [
                "/home/UsernameReplaced/.local/share/icons",
                "/usr/share/icons",
                "/home/UsernameReplaced/.icons",
                ":/icons"
            ],
            "Fallback Theme": "breeze",
            "Fallback Search Paths": []
        }
    },
    "external-programs": {
        "rsync": {
            "version": "3.4.1",
            "protocol": "32.0",
            "capabilities": "file_bits: 64; inum_bits: 64; timestamp_bits: 64; long_int_bits: 64; socketpairs: True; symlinks: True; symtimes: True; hardlinks: True; hardlink_specials: True; hardlink_symlinks: True; IPv6: True; atimes: True; batchfiles: True; inplace: True; append: True; ACLs: True; xattrs: True; secluded_args: optional; iconv: True; prealloc: True; stop_at: True; crtimes: False",
            "optimizations": "SIMD_roll: True; asm_roll: False; openssl_crypto: True; asm_MD5: False",
            "checksum_list": "xxh128, xxh3, xxh64, md5, md4, sha1, none",
            "compress_list": "zstd, lz4, zlibx, zlib, none",
            "daemon_auth_list": "sha512, sha256, sha1, md5, md4"
        },
        "ssh": "OpenSSH_10.0p2, OpenSSL 3.5.1 1 Jul 2025",
        "sshfs": "3.7.3",
        "encfs": "(no encfs)",
        "shell": "/bin/bash",
        "shell-version": "GNU bash, version 5.2.37(1)-release (x86_64-pc-linux-gnu)"
    }
}

(process:36399): GLib-CRITICAL **: 18:35:13.288: g_main_context_pop_thread_default: assertion 'stack != NULL' failed

[afettouhi]

I removed the backup using the commandline version of backintime for now. When will 1.6.0 be released approx.?

[buhtz]

When will 1.6.0 be released approx.?

Please read this mailing list entry for details. It will take some months. There is one complex feature (encrypting with GoCrypt), from an external contributor, I am waiting for. The testing phase will be very long. The difference between 1.5.5 and 1.6.0 is extreme and I am assuming a lot of fresh bugs. So it will need its time.

[afettouhi]

Thanks for the link to the workaround and clarification on the 1.6.0 release window. Closing this.