2.6.21.5-rt14 wont'compile here

2.6.21.5-rt14 wont'compile here

[Dragan Noveski]

hi list,
since i am trying to compile 2.6.24/25 kernel with the rt-patches, no 
one version will compile here and i always get the same output.
this is how it looks like while trying to compile 2.6.21.4-rt13, but it 
looks the same for 2.6.21.5-rt14 :


.....
 GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
kernel/built-in.o:(.data+0x5d8): undefined reference to 
`preempt_mark_thresh'
make: *** [.tmp_vmlinux1] Fehler 1



for me this looks related to:

http://www.mail-archive.com/linux-rt-users@vger.kernel.org/msg00447.html

but i don't know how to fix it myself.

i would appreciate any help in  finding out more about this problem  or 
how to solve it.


cheers,
doc

Re: 2.6.21.5-rt14 wont'compile here

[Ingo Molnar]

* Dragan Noveski <perodog@gmx.net> wrote:

> hi list,
> since i am trying to compile 2.6.24/25 kernel with the rt-patches, no 
> one version will compile here and i always get the same output.
> this is how it looks like while trying to compile 2.6.21.4-rt13, but it 
> looks the same for 2.6.21.5-rt14 :

>  LD      .tmp_vmlinux1
> kernel/built-in.o:(.data+0x5d8): undefined reference to 
> `preempt_mark_thresh'
> make: *** [.tmp_vmlinux1] Fehler 1

does the patch below fix this?

	Ingo

Index: linux-rt.q/kernel/sysctl.c
===================================================================
--- linux-rt.q.orig/kernel/sysctl.c
+++ linux-rt.q/kernel/sysctl.c
@@ -382,6 +382,8 @@ static ctl_table kern_table[] = {
 		.mode		= 0644,
 		.proc_handler	= &proc_doulongvec_minmax,
 	},
+#endif
+#ifdef CONFIG_EVENT_TRACE
 	{
 		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "preempt_mark_thresh",
@@ -390,8 +392,6 @@ static ctl_table kern_table[] = {
 		.mode		= 0644,
 		.proc_handler	= &proc_doulongvec_minmax,
 	},
-#endif
-#ifdef CONFIG_EVENT_TRACE
 	{
 		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "trace_enabled",

Re: 2.6.21.5-rt14 wont'compile here

[Dragan Noveski]

Ingo Molnar wrote:
> * Dragan Noveski <perodog@gmx.net> wrote:
>
>   
>> hi list,
>> since i am trying to compile 2.6.24/25 kernel with the rt-patches, no 
>> one version will compile here and i always get the same output.
>> this is how it looks like while trying to compile 2.6.21.4-rt13, but it 
>> looks the same for 2.6.21.5-rt14 :
>>     
>
>   
>>  LD      .tmp_vmlinux1
>> kernel/built-in.o:(.data+0x5d8): undefined reference to 
>> `preempt_mark_thresh'
>> make: *** [.tmp_vmlinux1] Fehler 1
>>     
>
> does the patch below fix this?
>
> 	Ingo
>
> Index: linux-rt.q/kernel/sysctl.c
> ===================================================================
> --- linux-rt.q.orig/kernel/sysctl.c
> +++ linux-rt.q/kernel/sysctl.c
> @@ -382,6 +382,8 @@ static ctl_table kern_table[] = {
>  		.mode		= 0644,
>  		.proc_handler	= &proc_doulongvec_minmax,
>  	},
> +#endif
> +#ifdef CONFIG_EVENT_TRACE
>  	{
>  		.ctl_name	= CTL_UNNUMBERED,
>  		.procname	= "preempt_mark_thresh",
> @@ -390,8 +392,6 @@ static ctl_table kern_table[] = {
>  		.mode		= 0644,
>  		.proc_handler	= &proc_doulongvec_minmax,
>  	},
> -#endif
> -#ifdef CONFIG_EVENT_TRACE
>  	{
>  		.ctl_name	= CTL_UNNUMBERED,
>  		.procname	= "trace_enabled",
>
>   
hi ingo, very much thanks for the patch, it is fixing the issue here.
i applied it to the 2.6.21.5-rt14 with '- p1' and the kernel just 
compiled successfully!

i am hurrying to do a reboot and check the performance now -thanks again!

cheers,
doc