Hi all, On Thu, Dec 14, 2017 at 12:09 PM, Andreas Müller <schnitzelt...@gmail.com> wrote:
> On Thu, Dec 14, 2017 at 11:40 AM, Mirza Krak <mirza.k...@gmail.com> wrote: > >> 2017-12-14 9:41 GMT+01:00 Andreas Müller <schnitzelt...@gmail.com>: >> > On Thu, Dec 14, 2017 at 2:58 AM, Sherif Omran < >> sherifomran2...@gmail.com> >> > wrote: >> >> >> >> hey guys, >> >> >> >> any body tried the real time kernel? I get an error, it is snot in the >> >> compatibility list. >> >> can we skip it? >> >> >> >> thanks >> >> >> >> -- >> > >> > Good news: I use RT kernel only together with VC4 graphics and have >> lots of >> > fun on PI2/3. >> > Bad news: As far as I know it is not in meta-raspberrypi but in my fork >> [1]. >> > There were attempts to land the RT-patches in meta-raspberrypi but that >> was >> > denied for huge patch size :( >> >> If the patch size was the only problem one can pull it by doing the >> following in the recipe: >> >> SRC_URI += " \ >> https://cdn.kernel.org/pub/linux/kernel/projects/rt/4.9/patc >> h-4.9.65-rt56.patch.gz;name=rt-patch >> \ >> " >> >> SRC_URI[rt-patch.md5sum] = "9caa7b541d8c84c2d5c5f58985982e95" >> SRC_URI[rt-patch.sha256sum] = >> "47dfb518c78d8cbaafd4ab9130eb26fe0170be9189b580ab26209ef679309539" >> >> Note that above sums are "random" and not the for the actually file >> but are there for reference. >> >> That way you do not need to keep a copy of it in meta-raspberrypi. >> >> -- >> > Hi Mirza, > > Problem is that patches need alignments sometimes either caused by > Raspberry-Pi-specific adjustments or versions not matching exactly - RT > kernel patch updates are less frequent than kernel updates. Anyway: git is > very good at maintaining huge text content and this should not be a problem > these days. Another discussion about RT kernel was to have an extra kernel > for it and I never understood why. To me that seems nothing but an extra > maintenance burden. > > However - just wrote to Paul: I plan to be at FOSDEM and we can discuss > there how to get back to one layer only (not mine!) making everybody happy > :) > > I remember the discussion. Indeed that was the reason and the recommendation was to maintain a separate linux-raspberry fork where whoever has interest in this will maintain on top of linux-raspberrypi this patch. Obviously that didn't happen but I'd like to see it landing. -- Andrei Gherzan
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