[PATCH] Re: Weird... 2.6.9 kills FC2 gcc

[Jeff Garzik]

Mark Haverkamp wrote:
> On Mon, 2004-10-18 at 18:10, Jeff Garzik wrote:
>
> > The following appears in 2.6.9 release kernel, building with stock FC2 
> > gcc on x86, but does not appear in 2.6.9-final:
> >
> >
> > >  AS      arch/i386/kernel/vsyscall.o
> > > cc1: internal compiler error: Segmentation fault
> > > Please submit a full bug report,
> > > with preprocessed source if appropriate.
> > > See <URL:http://bugzilla.redhat.com/bugzilla> for instructions.
> > > make[1]: *** [arch/i386/kernel/vsyscall.o] Error 1
> > > make: *** [arch/i386/kernel] Error 2
> >
> >
> >
> > This is 100% reproducible, at the same location (vsyscall), which is 
> > strange because vsyscall didn't change AFAICS.
> >
> > I'll build a gcc 3.4.2 without Fedora Core patches and see if the 
> > behavior persists.
> >
> > But in the meantime, if anybody else knows what line of code causes this 
> > segfault, please speak up :)
>
>
> As an experiment, I commented out the include of init.h and replaced the
> __INITDATA and __FINIT with the .section and .previous.  It then
> compiled OK.


Yep, the same fix (patch attached) works for me.

	Jeff


===== arch/i386/kernel/vsyscall.S 1.1 vs edited =====
--- 1.1/arch/i386/kernel/vsyscall.S	2003-04-22 22:14:57 -04:00
+++ edited/arch/i386/kernel/vsyscall.S	2004-10-18 22:20:32 -04:00
@@ -1,6 +1,5 @@
-#include <linux/init.h>
 
-__INITDATA
+.section	".init.data","aw"
 
 	.globl vsyscall_int80_start, vsyscall_int80_end
 vsyscall_int80_start:
@@ -12,4 +11,4 @@
 	.incbin "arch/i386/kernel/vsyscall-sysenter.so"
 vsyscall_sysenter_end:
 
-__FINIT
+.previous