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Re: [gentoo-user] Problems with package "sys-apps/systemd-utils" version 259.3

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On Friday, 10 April 2026 16:02:15 British Summer Time Dr Rainer Woitok 
wrote:
> Greetings,
> 
> since recently I'm finding the following message in my Open-RC logs:
> 
>    sysctl: setting key "net.core.default_qdisc", ignoring: No such
> file or directory

I think you'll find this file is missing from your system?

~ $ ls -la /proc/sys/net/core/default_qdisc 
-rw-r--r-- 1 root root 0 Apr 10 16:27 /proc/sys/net/core/default_qdisc


> This message occured for the first time  in the Open-RC boot log
> follow- ing a routine upgrade of my packages  which in particular
> upgraded pack- age "sys-apps/systemd-utils" from version 255.18 to
> version 259.3.   After following several false tracks  in order to
> find the reason for this message I eventually decided  to again
> downgrade package  "sys-apps/sys- temd-utils"  to version 255.18. 
> Since then the above error message does no longer show up in my
> Open-RC boot logs.
> 
> Both versions of package  "sys-apps/systemd-utils"  have been build
> with USE flags
> 
>    USE: abi_x86_64 acl amd64 elibc_glibc kernel_linux kmod
>         python_single_target_python3_13 tmpfiles udev
> 
> I'm currently running kernel  "sys-kernel/gentoo-sources-6.18.18"  but
> I also tried both versions of package "sys-apps/systemd-utils"  on my
> pre- vious kernel "sys-kernel/gentoo-sources-6.18.12" with identical
> results.
> 
> I've checked for open "systemd-utils" bugs at
> "https://bugs.gentoo.org/" but did not find anything relevant.   And
> while this downgrade works for the moment, I don't expect masking
> ">=sys-apps/systemd-utils-259.3" will work for the rest of my life.
> 
> Anybody having an idea where else to look and for what, or should I
> just file a bug?
> 
> Sincerely,
>   Rainer

If you define a queueing discipline for your network stack/device as a 
default in your kernel .config, then this problem will go away.  For 
example, I have:

# CONFIG_NET_SCH_CODEL is not set
CONFIG_NET_SCH_FQ_CODEL=y
CONFIG_DEFAULT_FQ_CODEL=y

and consequently the file /proc/sys/net/core/default_qdisc contains 
this:

~ $ cat /proc/sys/net/core/default_qdisc 
fq_codel

HTH.

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[gentoo-user] Problems with package "sys-apps/systemd-utils" version 259.3 Dr Rainer Woitok <rainer.woitok@gmail.com> - 2026-04-10 17:10 +0200
    Re: [gentoo-user] Problems with package "sys-apps/systemd-utils" version  259.3 Michael <confabulate@kintzios.com> - 2026-04-10 18:00 +0200
    Re: [gentoo-user] Problems with package "sys-apps/systemd-utils" version 259.3 Dr Rainer Woitok <rainer.woitok@gmail.com> - 2026-04-11 18:40 +0200
        Re: [gentoo-user] Problems with package "sys-apps/systemd-utils" version  259.3 Michael <confabulate@kintzios.com> - 2026-04-11 19:20 +0200

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