Very interesting the news they published in Bad life, where its author tells us, that thanks to the collaboration between developers of Suse y Red HatFrom version 3.20 of the Linux Kernel, we can update it without the need to restart the computer.
What started as something independent
It all started with Suse and Red Hat working separately to find a way to update the kernel without having to restart the computer. In April 2014, Jiri Slaby (now Jiri Kosina) by Suse he presented kGraft, and in July, Josh poimboeuf by Red Hat he presented kpatch, the latter presenting the advantages of kpatch about kGraft. Apparently both developers agreed and decided to work together.
Of course, all technical documentation can be consulted at the message sent to the mailing list.
What does this bring us to the end user?
For ordinary users this does not make a big difference (I suppose), because in my very particular case with Archlinux, for the only reason I have to restart after updating a Kernel, it is because removable devices are not mounted. Although this may just happen to me, or maybe it can be solved by loading a module.
I do not know if this leads to that if we update to a higher version of the Kernel and there is some incompatibility with our hardware, all go to the toilet. Everything remains to be seen, but without a doubt, whether it brings us some benefit or not, this would be quite useful when working with servers, since we would not have to restart any of them after each update.
How do they see it?
As you say to normal users it is not much news, restarting the machine does not cost more than 1 minute, but in the server area, for me it is very different, to be able to apply a security patch without having to restart and therefore not Denying services is very new to me.
regards
great for servers, the best news in recent months.
Excellent especially for the area of servers and supercomputing, which cannot stop for a second
Oh yeah orgasms like no other !! sure they will backport to kernel 2.6 and others ... this is much higher server uptime!
Yes! No more staying up late for a reboot, now in broad daylight you patch and drive !!
oracle has had the same thing for a long time, but $$$ (ellipsis)
You are not the only one with removable devices. In my case it does not affect me much, because I already have the (bad?) Habit that when I turn on my computer every morning, the first thing I do is make a pacman -Syyu, and restart always, well, almost always, only when I see that something was updated that I'm not quite sure what it is about (fearing that it is something from the system), that is, almost always hahahaha.
hahahah I got to have my laptop without restarting / shutting down for 35 days or something like that ... heh ... heh ... heh
Gods! I do not burn you! I don't dare more than 48 hours
Well, the board is broken right now, but not because of that, but because when I mounted the new board ... ehm ... I missed a detail, that a year later I ended up screwing the graphics chip hehe ... but nothing to do with having it so many days on, suspend, turn on, suspend, etc.
I think it could already be done on servers, as a micro reboot of a few seconds ... or was it a myth?
This is very good news!
I use it since 2011 at KSPLICE, then I buy it Oracle, it was cheap in its time, now it is a bit salty, you have to try these new versions, I was reading and to implement it for now they are not easy, the KSPLICE was to load a command line and it was ready, everything automatic, you have to see these new versions if they are friendly ..
A few years ago atra already included it from, I think it was around 2009, but it took so long that it is already included in the main branch