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2.6.21.5-rt14 wont'compile here

DISCUSSION Dragan Noveski 2 participants 3 messages Jun 17, 2007 Proc sysctl

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Dragan Noveski

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#0 lore raw

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/[email protected]/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

#1 lore raw
Quoted 10 lines · 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 :

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

kernel/sysctl.c +2 -2
Index: 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",
author
#2 lore raw
Quoted 34 lines · Ingo Molnar
Quoted 10 lines · 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 :

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
===================================================================

kernel/sysctl.c +2 -0
@@ -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",

kernel/sysctl.c static ctl_table kern_table[] = { · line 397

Quoted 8 lines
kernel/sysctl.c +0 -2
@@ -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