Re: Uses of Linux backports in the industry

2015-06-24 Thread Richard Weinberger
Am 24.06.2015 um 11:55 schrieb Enrico Weigelt, metux IT consult: > Am 24.06.2015 um 11:19 schrieb Richard Weinberger: > > Hi, > >> Porting PREEMPT_RT is not that easy. >> Did you ever? > > I know. > > OTOH, is backporting drivers to ancient kernels (where internal APIs > often are _completely_

Re: Uses of Linux backports in the industry

2015-06-24 Thread Enrico Weigelt, metux IT consult
Am 01.06.2015 um 20:50 schrieb Felix Fietkau: We support many different platforms, and sometimes it takes a while to update the kernel on them. Just curious: what makes these platforms so different from each other, so it takes so much time to port to new kernel ? Are there things so special, t

Re: Uses of Linux backports in the industry

2015-06-24 Thread Enrico Weigelt, metux IT consult
Am 24.06.2015 um 11:19 schrieb Richard Weinberger: Hi, > Porting PREEMPT_RT is not that easy. Did you ever? I know. OTOH, is backporting drivers to ancient kernels (where internal APIs often are _completely_ different) really easier ? Perhaps it might look so, if it's just one individual dri

Re: Uses of Linux backports in the industry

2015-06-24 Thread Richard Weinberger
Am 24.06.2015 um 11:09 schrieb Enrico Weigelt, metux IT consult: > Am 29.05.2015 um 17:01 schrieb Richard Weinberger: > > Hi, > >> On Fri, May 29, 2015 at 4:53 PM, Enrico Weigelt, metux IT consult >> wrote: >>> Am 29.05.2015 um 04:54 schrieb Luis R. Rodriguez: >>> Actually, I really wonder why f

Re: Uses of Linux backports in the industry

2015-06-24 Thread Enrico Weigelt, metux IT consult
Am 29.05.2015 um 19:36 schrieb Theodore Ts'o: > Yes, it's ugly, but there still are some SOC and drivers that aren't available on newer kernels. Why so, exactly ? cu -- Enrico Weigelt, metux IT consult +49-151-27565287 MELAG Medizintechnik oHG Sitz Berlin Registergericht AG Charlottenburg HR

Re: Uses of Linux backports in the industry

2015-06-24 Thread Enrico Weigelt, metux IT consult
Am 29.05.2015 um 17:01 schrieb Richard Weinberger: Hi, On Fri, May 29, 2015 at 4:53 PM, Enrico Weigelt, metux IT consult wrote: Am 29.05.2015 um 04:54 schrieb Luis R. Rodriguez: Actually, I really wonder why folks are sticking to ancient kernels on newer hardware. Enterprise distribution ke

Re: Uses of Linux backports in the industry

2015-06-23 Thread Pavel Machek
On Fri 2015-05-29 13:36:09, Theodore Ts'o wrote: > On Fri, May 29, 2015 at 05:01:00PM +0200, Richard Weinberger wrote: > > On Fri, May 29, 2015 at 4:53 PM, Enrico Weigelt, metux IT consult > > wrote: > > > Am 29.05.2015 um 04:54 schrieb Luis R. Rodriguez: > > > Actually, I really wonder why folks

Re: Uses of Linux backports in the industry

2015-06-02 Thread Szymon Janc
Hi, On Thursday 28 of May 2015 19:54:57 Luis R. Rodriguez wrote: > Me and Julia are working on a paper which evaluates use of Coccinelle > on backports, a preliminary draft of such paper can be found on github > [0]. We are making some tweaks to this, one of which is covering the > uses of Linux b

Re: Uses of Linux backports in the industry

2015-06-01 Thread Julia Lawall
On Mon, 1 Jun 2015, Felix Fietkau wrote: > On 2015-05-29 04:54, Luis R. Rodriguez wrote: > > Me and Julia are working on a paper which evaluates use of Coccinelle > > on backports, a preliminary draft of such paper can be found on github > > [0]. We are making some tweaks to this, one of which i

Re: Uses of Linux backports in the industry

2015-06-01 Thread Felix Fietkau
On 2015-05-29 04:54, Luis R. Rodriguez wrote: > Me and Julia are working on a paper which evaluates use of Coccinelle > on backports, a preliminary draft of such paper can be found on github > [0]. We are making some tweaks to this, one of which is covering the > uses of Linux backports [1] in the

Re: Uses of Linux backports in the industry

2015-05-29 Thread Luis R. Rodriguez
On Fri, May 29, 2015 at 10:36 AM, Theodore Ts'o wrote: > On Fri, May 29, 2015 at 05:01:00PM +0200, Richard Weinberger wrote: >> On Fri, May 29, 2015 at 4:53 PM, Enrico Weigelt, metux IT consult >> wrote: >> > Am 29.05.2015 um 04:54 schrieb Luis R. Rodriguez: Just to clarify the original goal was

Re: Uses of Linux backports in the industry

2015-05-29 Thread Theodore Ts'o
On Fri, May 29, 2015 at 05:01:00PM +0200, Richard Weinberger wrote: > On Fri, May 29, 2015 at 4:53 PM, Enrico Weigelt, metux IT consult > wrote: > > Am 29.05.2015 um 04:54 schrieb Luis R. Rodriguez: > > Actually, I really wonder why folks are sticking to ancient kernels on > > newer hardware. > >

Re: Uses of Linux backports in the industry

2015-05-29 Thread Richard Weinberger
On Fri, May 29, 2015 at 4:53 PM, Enrico Weigelt, metux IT consult wrote: > Am 29.05.2015 um 04:54 schrieb Luis R. Rodriguez: > Actually, I really wonder why folks are sticking to ancient kernels on > newer hardware. Enterprise distribution kernels. Or "special" kernels like PREEMPT_RT. Sometimes

Re: Uses of Linux backports in the industry

2015-05-29 Thread Enrico Weigelt, metux IT consult
Am 29.05.2015 um 04:54 schrieb Luis R. Rodriguez: Hi, let me add some personal views for backports issue in general - or, more precisely, the opposite - forward porting: Silicon vendors often just provide drivers for very old kernels, even worse: proprietary drivers, which need ugly kernel ha

Uses of Linux backports in the industry

2015-05-28 Thread Luis R. Rodriguez
Me and Julia are working on a paper which evaluates use of Coccinelle on backports, a preliminary draft of such paper can be found on github [0]. We are making some tweaks to this, one of which is covering the uses of Linux backports [1] in the industry, for this we'd like to try to get feedback as