https://bugs.kde.org/show_bug.cgi?id=494200
Bug ID: 494200
Summary: Increase vm.max_map_count
Classification: KDE Neon
Product: neon
Version: unspecified
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: neon-b...@kde.org
Reporter: thomaslukeduf...@hotmail.co.uk
CC: carlosdema...@gmail.com, j...@jriddell.org,
neon-b...@kde.org
Target Milestone: ---
SUMMARY
To improve compatibility with certain memory-intensive applications, we should
increase the default map_map_count value to a higher value (eg. 2147483642),
This fixes a number of crashes in user applications such as Valve's game
Deadlock, which otherwise crashes on startup once enough memory is allocated.
Other distros such as Fedora are also increasing this default value, so
updating this will keep Neon in line with other Linux systems and reduce
potential incompatibility reports later.
STEPS TO REPRODUCE
Another example: https://bugs.kde.org/show_bug.cgi?id=396142
1. Launch an application known to crash due to vm max count limitation (eg.
Deadlock)
2. Wait
OBSERVED RESULT
Application will crash
EXPECTED RESULT
Application is stable
SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.1.5
KDE Frameworks Version: 6.6.0
Qt Version: 6.7.2
Kernel Version: 6.8.0-45-generic (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7840HS with Radeon 780M Graphics
Memory: 27.1 GiB of RAM
Graphics Processor: AMD Radeon Graphics
ADDITIONAL INFORMATION
I know KDE Neon is a "testing" distro and "not meant for daily driving" but I
think this is a win-win for everyone - Daily drivers will get better app
compatibiility and a more stable system, and devs will have a more "standard"
Linux system that will represent the platforms that KDE is running on.
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