SUMMARY Each time I start a KDE program, 2 lines are added to the kernel logs with this error message: > Unsafe core_pattern used with fs.suid_dumpable=2: pipe handler or fully qualified core dump path required. Set kernel.core_pattern before fs.suid_dumpable STEPS TO REPRODUCE 1. Launch a KDE program 2. Run dmesg OBSERVED RESULT For example, with okular: [542997.262936] coredump: 790246(okular): Unsafe core_pattern used with fs.suid_dumpable=2: pipe handler or fully qualified core dump path required. Set kernel.core_pattern before fs.suid_dumpable. [542997.262944] coredump: 790246(okular): Unsafe core_pattern used with fs.suid_dumpable=2: pipe handler or fully qualified core dump path required. Set kernel.core_pattern before fs.suid_dumpable. EXPECTED RESULT No kernel logs SOFTWARE/OS VERSIONS $ kinfo Operating System: Kubuntu 25.04 KDE Plasma Version: 6.3.5 KDE Frameworks Version: 6.12.0 Qt Version: 6.8.3 Kernel Version: 6.14.6-061406-generic (64-bit) Graphics Platform: X11 [...]
I don't see any instances of this in my dmesg logs on Plasma 6.3.5, even just after launching Okular, with the same kernel version. Operating System: Solus 4.7 KDE Plasma Version: 6.3.5 KDE Frameworks Version: 6.14.0 Qt Version: 6.8.3 Kernel Version: 6.14.6-319.current (64-bit) I also am unable to reproduce on Neon Testing or Kubuntu 25.04 Since a coredump is indicated, this means something crashed. We need a backtrace of it so we can figure out what's going on. Can you please attach a backtrace of the crash using the coredumpctl command-line program, as detailed in [https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl](https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl)? Thanks.
The problem is now fixed after a KF6 upgrade and the following versions: $ kinfo Operating System: Kubuntu 25.04 KDE Plasma Version: 6.3.5 KDE Frameworks Version: 6.14.0 Qt Version: 6.8.3 Kernel Version: 6.14.7-061407-generic (64-bit) Graphics Platform: X11 Thanks for looking at this bug!