Why sysrq is limited to only "sync" command on official fedora kernel?

Zbigniew Jędrzejewski-Szmek zbyszek at in.waw.pl
Thu Feb 26 23:32:16 UTC 2015


On Thu, Feb 26, 2015 at 02:33:17PM -0700, Pete Travis wrote:
> On Feb 26, 2015 9:01 AM, "Zbigniew Jędrzejewski-Szmek" <zbyszek at in.waw.pl>
> wrote:
> >
> > On Thu, Feb 26, 2015 at 08:51:46AM -0700, Pete Travis wrote:
> > > The only time I've needed sysrq reboots in recent memory was while
> running
> > > rawhide and knowingly venturing into uncharted territory.  If I'm not
> the
> > > only one, would it make sense to include appropriate sysctl snippets in
> > > fedora-release-rawhide ?
> > We could ship /etc/sysctl.d/sysrq-enable.conf.disabled (name up for
> discussion),
> > and interested users could enable it by renaming the file. Maybe even
> better
> > to provide it the same in all versions.
> >
> > Zbyszek
> > --
> >
> 
> All versions might be overkill, but I don't see the harm in the added
> convenience, either.  What's the next step?
Somebody should do the change :) But there's a snag: systemd-sysctl warns
about overrides:
    Overwriting earlier assignment of kernel/sysrq in file '/etc/sysctl.d/60-local.conf'.
I think we should change this  upstream (downgrade to debug). And thinking
about this more, creating a separate file seems overkill. Just adding
a comment in 50-default.conf should be enough.

Zbyszek


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