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KDE is an international technology team creating user-friendly free and open source software for desktop and portable computing. KDE’s software runs on GNU/Linux, BSD and other operating systems, including Windows.

Plasma 6 Bugs

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There's some mismatch between Linux kernel 3.10 and #KDE that wants to use clone3 to create a process thread. (fosstodon.org)

submitted 9 months ago by [email protected] to c/[email protected]

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There's some mismatch between Linux kernel 3.10 and #KDE that wants to use clone3 to create a process thread.

Do I know anyone from @[email protected] @[email protected] who is able to assist with debugging it further?

The system call clone3 has been added to linux 5.3 but it seems that KDE does not do any fallback in case the system call is rejected with EPERM.

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[–] [email protected] 0 points 9 months ago (4 children)

@carlschwan @[email protected] @[email protected]

Yeah, RHEL 7 uses it out of the box and is still supported, at least until June 2024: https://www.redhat.com/en/blog/end-maintenance-red-hat-enterprise-linux-7-almost-here

[–] [email protected] 2 points 9 months ago (3 children)

@zygoon @carlschwan @[email protected] @[email protected] It's likely coming from some usage of libseccomp somewhere. This also afflicts the container stack and such, which is why RHEL 9 containers on RHEL 7 are not supported.

Container/sandbox runtimes using libseccomp need to explicitly always allow clone3() through, or otherwise it will not fail correctly on RHEL 7.

[–] [email protected] 1 points 9 months ago (2 children)

@Conan_Kudo @carlschwan @[email protected] @[email protected] yeah, I strongly suspect seccomp. I’m debugging this now and I will share updates when I get to the bottom of the problem.

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