trying to build rt kernel, fails quickly

trying to build rt kernel, fails quickly

[Gene Heskett]

Greetings all;

I've had this downloaded for 2 or 3 weeks so its old.

Tried to build it on a rock64 just now, and got this:

rock64@rock64:/media/slash/home/rock64/4.11.12.rt15/linux-4.11$ time make
  HOSTCC  scripts/kconfig/conf.o
  HOSTLD  scripts/kconfig/conf
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  UPD     include/config/kernel.release
  CHK     include/generated/uapi/linux/version.h
  CHK     include/generated/utsrelease.h
"4.11.12-rt16--- localversion-rt +++ localversion-rt @@ -1 +1 @@ --rt15 
+-rt16" exceeds 64 characters
Makefile:1107: recipe for target 'include/generated/utsrelease.h' failed
make: *** [include/generated/utsrelease.h] Error 1

real    0m7.793s
user    0m4.585s
sys     0m2.396s
rock64@rock64:/media/slash/home/rock64/4.11.12.rt15/linux-4.11$ cat 
include/generated/utsrelease.h
#define UTS_RELEASE "4.11.12-rt16"

That doesn't look like 64+ chars.

What might be the real problem?

This is on the rock64, but is being built on a 1TB spinning rust drive 
plugged in and mounted at /media/slash.  This did build a 4.10.0-rc3 
just fine a month ago but its not been boot tested because I'm a 
greenhorn at u-boot. If there is a boot updater for it, I've not found 
it yet so its actually running an "ayufan" kernel, which is not real 
time. Original debian stretch install.

Looks like I need some help.

Thank you.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

Re: trying to build rt kernel, fails quickly

[Julia Cartwright]

On Thu, Nov 16, 2017 at 08:28:32AM -0500, Gene Heskett wrote:
> Greetings all;
> 
> I've had this downloaded for 2 or 3 weeks so its old.
> 
> Tried to build it on a rock64 just now, and got this:
> 
> rock64@rock64:/media/slash/home/rock64/4.11.12.rt15/linux-4.11$ time make
>   HOSTCC  scripts/kconfig/conf.o
>   HOSTLD  scripts/kconfig/conf
> scripts/kconfig/conf  --silentoldconfig Kconfig
>   CHK     include/config/kernel.release
>   UPD     include/config/kernel.release
>   CHK     include/generated/uapi/linux/version.h
>   CHK     include/generated/utsrelease.h
> "4.11.12-rt16--- localversion-rt +++ localversion-rt @@ -1 +1 @@ --rt15 
> +-rt16" exceeds 64 characters

My suspicion is that your localversion-rt file in your working tree has
a bizarre value, it should just contain "-rt16\n", instead it contains
garbage which lookes like a patch/merge conflict.

Can you check it's contents?

I've checked the tags pushed to git, and they look just fine, so perhaps
this is a leftover merge problem on your end?

   Julia

Re: trying to build rt kernel, fails quickly

[Gene Heskett]

On Friday 17 November 2017 11:31:55 Julia Cartwright wrote:

> On Thu, Nov 16, 2017 at 08:28:32AM -0500, Gene Heskett wrote:
> > Greetings all;
> >
> > I've had this downloaded for 2 or 3 weeks so its old.
> >
> > Tried to build it on a rock64 just now, and got this:
> >
> > rock64@rock64:/media/slash/home/rock64/4.11.12.rt15/linux-4.11$ time
> > make HOSTCC  scripts/kconfig/conf.o
> >   HOSTLD  scripts/kconfig/conf
> > scripts/kconfig/conf  --silentoldconfig Kconfig
> >   CHK     include/config/kernel.release
> >   UPD     include/config/kernel.release
> >   CHK     include/generated/uapi/linux/version.h
> >   CHK     include/generated/utsrelease.h
> > "4.11.12-rt16--- localversion-rt +++ localversion-rt @@ -1 +1 @@
> > --rt15 +-rt16" exceeds 64 characters
>
> My suspicion is that your localversion-rt file in your working tree
> has a bizarre value, it should just contain "-rt16\n", instead it
> contains garbage which lookes like a patch/merge conflict.
>
> Can you check it's contents?
>
> I've checked the tags pushed to git, and they look just fine, so
> perhaps this is a leftover merge problem on your end?
>
>    Julia

Thanks for the reply Julia, but that is not the clanging bell, darn it.

rock64@rock64:/media/slash/home/rock64/4.11.12.rt15/linux-4.11$ cat localversion-rt
-rt16

rt15, FWIW, built just fine. An ls -l of that build directory shows a 
full build worked on Oct 17th 2017.

Thank you Julia.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

Re: trying to build rt kernel, fails quickly

[Julia Cartwright]

On Fri, Nov 17, 2017 at 01:13:41PM -0500, Gene Heskett wrote:
> On Friday 17 November 2017 11:31:55 Julia Cartwright wrote:
> 
> > On Thu, Nov 16, 2017 at 08:28:32AM -0500, Gene Heskett wrote:
> > > Greetings all;
> > >
> > > I've had this downloaded for 2 or 3 weeks so its old.
> > >
> > > Tried to build it on a rock64 just now, and got this:
> > >
> > > rock64@rock64:/media/slash/home/rock64/4.11.12.rt15/linux-4.11$ time
> > > make HOSTCC  scripts/kconfig/conf.o
> > >   HOSTLD  scripts/kconfig/conf
> > > scripts/kconfig/conf  --silentoldconfig Kconfig
> > >   CHK     include/config/kernel.release
> > >   UPD     include/config/kernel.release
> > >   CHK     include/generated/uapi/linux/version.h
> > >   CHK     include/generated/utsrelease.h
> > > "4.11.12-rt16--- localversion-rt +++ localversion-rt @@ -1 +1 @@
> > > --rt15 +-rt16" exceeds 64 characters
> >
> > My suspicion is that your localversion-rt file in your working tree
> > has a bizarre value, it should just contain "-rt16\n", instead it
> > contains garbage which lookes like a patch/merge conflict.
> >
> > Can you check it's contents?
> >
> > I've checked the tags pushed to git, and they look just fine, so
> > perhaps this is a leftover merge problem on your end?
> >
> >    Julia
> 
> Thanks for the reply Julia, but that is not the clanging bell, darn it.
> 
> rock64@rock64:/media/slash/home/rock64/4.11.12.rt15/linux-4.11$ cat localversion-rt
> -rt16

Another guess: do you have any files in the source or build directories
whose names start with 'localversion'?  Like, 'localversion-rt.patch',
perhaps?

The kernel's build systems concatenates these files together to try to
construct a release version, if there are extra files around, that will
cause problems.

   Julia

Re: trying to build rt kernel, fails quickly

[Gene Heskett]

On Friday 17 November 2017 13:25:50 Julia Cartwright wrote:

> On Fri, Nov 17, 2017 at 01:13:41PM -0500, Gene Heskett wrote:
> > On Friday 17 November 2017 11:31:55 Julia Cartwright wrote:
> > > On Thu, Nov 16, 2017 at 08:28:32AM -0500, Gene Heskett wrote:
> > > > Greetings all;
> > > >
> > > > I've had this downloaded for 2 or 3 weeks so its old.
> > > >
> > > > Tried to build it on a rock64 just now, and got this:
> > > >
> > > > rock64@rock64:/media/slash/home/rock64/4.11.12.rt15/linux-4.11$
> > > > time make HOSTCC  scripts/kconfig/conf.o
> > > >   HOSTLD  scripts/kconfig/conf
> > > > scripts/kconfig/conf  --silentoldconfig Kconfig
> > > >   CHK     include/config/kernel.release
> > > >   UPD     include/config/kernel.release
> > > >   CHK     include/generated/uapi/linux/version.h
> > > >   CHK     include/generated/utsrelease.h
> > > > "4.11.12-rt16--- localversion-rt +++ localversion-rt @@ -1 +1 @@
> > > > --rt15 +-rt16" exceeds 64 characters
> > >
> > > My suspicion is that your localversion-rt file in your working
> > > tree has a bizarre value, it should just contain "-rt16\n",
> > > instead it contains garbage which lookes like a patch/merge
> > > conflict.
> > >
> > > Can you check it's contents?
> > >
> > > I've checked the tags pushed to git, and they look just fine, so
> > > perhaps this is a leftover merge problem on your end?
> > >
> > >    Julia
> >
> > Thanks for the reply Julia, but that is not the clanging bell, darn
> > it.
> >
> > rock64@rock64:/media/slash/home/rock64/4.11.12.rt15/linux-4.11$ cat
> > localversion-rt -rt16
>
> Another guess: do you have any files in the source or build
> directories whose names start with 'localversion'?  Like,
> 'localversion-rt.patch', perhaps?
>
> The kernel's build systems concatenates these files together to try to
> construct a release version, if there are extra files around, that
> will cause problems.
>
>    Julia

That was it. there was a .rej from patch. Nuked it, build in progress.

Thank you Julia.
Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>