On Mon, 17 Nov 2014 14:09:30 +0100 intrigeri <[email protected]> wrote: > Control: retitle -1 logind should report clearer error messages when the > kernel doesn't support cgroups > > Hi Emilio, > > Emilio Pozuelo Monfort wrote (18 Nov 2013 19:43:14 GMT) : > > As you can see on bug #729674 and #729877, when running with a kernel > > without > > cgroup support, CreateSession() fails on logind. The problem is that logind > > looks for /proc/$pid/cgroup, which is missing (though /proc/$pid exists) > > and it > > confusingly returns ESRCH. > > > I don't know if logind requires a kernel with cgroups to create sessions, > > but if > > that's not possible, at least a better error message would be nice, or maybe > > logind should check for this at init and exit. > > /usr/share/doc/systemd/README.gz makes it clear that the kernel must > support cgroups, so this behaviour is expected. Now, I agree that it > would be nice if logind (and friends) reported clearer errors whenever > a needed kernel feature is missing. Retitling accordingly. > > Next step for anyone interested is to check if things have improved > upstream in this area since v215, and if not, to check if there's > a ticket in their bug tracker.
I think we should start adding checks to systemd.preinst and fail if not existent. Testing for cgroups support would be high on the list. -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
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