Re: Problems with package "sys-apps/systemd-utils" version 259.3

Michael,

On Friday, 2026-04-10 16:51:15 +0100, you wrote:

> ...
> 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

No, the file exists but contains the default value:

   $ cat /proc/sys/net/core/default_qdisc
   pfifo_fast
   $

And the help texts for kernel configuration variables "CONFIG_*_CODEL"
clearly state

   CONFIG_NET_SCH_FQ_CODEL:

    Say Y here if you want to use the FQ Controlled Delay (FQ_CODEL)
    packet scheduling algorithm.

    To compile this driver as a module, choose M here: the module
    will be called sch_fq_codel.

    If unsure, say N.

   CONFIG_NET_SCH_DEFAULT:

    Support for selection of default queuing discipline.

    Nearly all users can safely say no here, and the default
    of pfifo_fast will be used. Many distributions already set
    the default value via /proc/sys/net/core/default_qdisc.

    If unsure, say N.

So should I _really_ set these kernel configuration variables?

> ...
> > ...
> > 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.
> > 

Sorry,  but regarding the kernel versions I goofed  and picked the wrong
data from my notes: my currently running kernel is version 6.18.12 while
the previous kernel was version 6.12.58.

Meanwhile, I found at least one difference between the version 259.3 and
version 255.18 of package "sys-apps/systemd-utils":

   With version 259.3:

   # grep _qdisc /usr/lib/sysctl.d/50-default.conf
   -net.core.default_qdisc = fq_codel
   #

which seems reasonable, provided my interpretation of the leading "-" as
logical "not" is correct.

   However, under version 255.18, where everything now seems to work:

   # grep _qdisk /usr/lib/sysctl.d/50-default.conf
   grep: /usr/lib/sysctl.d/50-default.conf: No such file or directory
   #

Could the configuration provided in new file "50-default.conf" be buggy?

Sincerely,
  Rainer