Am 15.10.2013 20:40, schrieb Jan Kratochvil: > On Tue, 15 Oct 2013 20:24:06 +0200, Reindl Harald wrote: >> Am 15.10.2013 20:07, schrieb Jan Kratochvil: >>> This is a bug of update system it does not know if an updated service needs >>> restarting or not. >> >> you can always point with your finger somewhere else >> the better way is solve the root cause > > The root cause is really the update system. Why should I look for what daemon > to restart by hand? It should happen automatically, it is even a security > hole if nightly yum updates a daemon but its old version remains running. > IIRC it is some systemd feature in development but I cannot find it now. *you need to restart no-PIE binaries after prelink because otherwise no ASLR* > You can always make your software development life more simple by giving up on > some useful feature. That -O2 vs. -O0 build is a good comparison. no >>> This is a known prelink Bug: >>> -y has false mismatches >>> https://bugzilla.redhat.com/show_bug.cgi?id=666143 >>> >>> Just the evil Fedora Bugs autoclose has already closed it but it is still >>> valid. I have provided even a single line fix there. >> >> you can always point with your finger somewhere else >> the better way is solve the root cause > > You can always make your software development life more simple by giving up on > some useful feature. That -O2 vs. -O0 build is a good comparison. *stop trolling* >>>> there are people wich shut down or suspend machines when they are not in use >>>> how do you imagine the cronjob run while they are not in use for this >>>> *majority* of users? >>> >>> These users really should uninstall prelink as they cannot use it >> >> if the majority should uninstall something because they can't >> use it it must not be active in a default setup > > If the majority of Fedora users then yes. IMO Fedora is more used on servers > but I really do not know the user base. *lol* Fedora != RHEL/CentOS and that said from one running Fedora in production *but* i am aware that i am *not* the majority in that case >>> BTW all my servers run 24x7 >> >> and *there* you do *not* need prelink because the theoretical gain >> in faster startup does *not matter* > > It does matter, I run even large builds there, regression testing, besides > that even web server CGIs benefit from it. "server" is a wide term. come on where the numbers? >> so, and now come on and list some *real* benefits, > > Improved performance. come on where the numbers? >> take the wasted time into account > > If you find software development of performance features a wasted time then > I see it really does not make sense to discuss it more. come on where the numbers of the better performance? >> stop to defeat prelink in the default >> install and agree that it has to be removed from it > > I do not say anything about prelink in the default install as I have no idea > what is the default Fedora user. *this topic is about have prelink by default installed* > But it is a useful feature at least on > servers and 24x7 running workstations yeah, where you update, reboot, login and start your Firefox with no ASLR which runs after that 2,3,4,5 days - oh my god what a nonsense to think the 200 ms at startup of the browser is worth the time to defeat it *you have no ASLR at all* in such situations because the on-time-randomize happens after you started your browser which keeps running don't get me wrong but honestly i doubt you are the right person to discuss such technical stuff
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