On Fri, Apr 17, 2015 at 08:44:20AM +0200, Thorsten Leemhuis wrote:
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On 16.04.2015 14:12, Josh Boyer wrote:
> On Thu, Apr 16, 2015 at 6:17 AM, James Harrison
> <jamesaharrisonuk(a)yahoo.co.uk> wrote:
>> I took the src RPM from rawhide and compiled it in F21 x86_64..
> For what purpose?
I do something like that to help testing a new kernel version before
it hits updates-testing.
You could pull it out of koji too though.
> Also, generally you don't have to rebuild the kernel just
because
> it is an older Fedora release. I test rawhide/F22 kernel RPMs on
> top of F21 userspace daily.
It might be a issue for those few that want to or have to compile
modules for that kernel -- or is it possible these days to use gcc 4.9
to compile modules for a kernel that was compiled with gcc 5.0?
Right, that's why I asked James why he rebuilt things. Out of tree
modules would require a rebuild against whatever kernel version you have
locally. As far as I know, you still have to have matching compiler
versions between your kernel and modules.
Aside from that, I can't think of any major reason to rebuild unless
you're modifying the code (or you think there's a compiler bug).
josh