argus-server produces corrupt output on 22.04

[Gavin Atkinson]

On 22.04, argus-server produces corrupt output (either when outputting to a file, or when streaming over the remote access port). This causes clients such as ra(1) to crash reasonably frequently, often with the error "ARGUS_DATA_DSR len is zero".

After some investigation (and trying to figure out why this wasn't an issue with 20.04) I've discovered that this goes away when built with "-fno-strict-aliasing" appended to DEB_CFLAGS_MAINT_APPEND in debian/rules. Debian made this same workaround in debbug 1028081 in 2023 (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1028081).

With this, argus has been stable through many terabytes of traffic.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: argus-server 2:3.0.8.2-2.1
ProcVersionSignature: Ubuntu 5.15.0-134.145-generic 5.15.173
Uname: Linux 5.15.0-134-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.6
Architecture: amd64
CasperMD5CheckResult: pass
CloudArchitecture: x86_64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
Date: Wed Mar 12 12:06:00 2025
InstallationDate: Installed on 2025-03-10 (1 days ago)
InstallationMedia: Ubuntu-Server 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240216.1)
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: argus
UpgradeStatus: No upgrade log present (probably fresh install)