I am observing xen-unstable build failing on i386 FC4, as seen bellow.

make -C arch/x86

make[1]: Entering directory `/home/nitin/repo/pae/unstable.hg/xen/arch/x86'

gcc -Wdeclaration-after-statement -nostdinc -fno-builtin -fno-common -fno-strict-aliasing -iwithprefix include -Wall -Werror -Wno-pointer-arith -pipe -I/home/nitin/repo/pae/unstable.hg/xen/include -I/home/nitin/repo/pae/unstable.hg/xen/include/asm-x86/mach-generic -I/home/nitin/repo/pae/unstable.hg/xen/include/asm-x86/mach-default -O3 -fomit-frame-pointer -msoft-float -m32 -march=i686 -DNDEBUG -c mm.c -o mm.o

cc1: warnings being treated as errors

mm.c: In function ?do_mmu_update?:

mm.c:1975: warning: ?mapcache.pfn? may be used uninitialized in this function

mm.c:1975: warning: ?mapcache.va? may be used uninitialized in this function

make[1]: *** [mm.o] Error 1

make[1]: Leaving directory `/home/nitin/repo/pae/unstable.hg/xen/arch/x86'

make: *** [/home/nitin/repo/pae/unstable.hg/xen/xen] Error 2

This quick patch fixes it.

diff -r 690fc13948db7651eabbce8cc4b963342c8634dd xen/arch/x86/mm.c

--- a/xen/arch/x86/mm.c Mon Jan 30 12:35:43 2006

+++ b/xen/arch/x86/mm.c Mon Jan 30 13:47:45 2006

@@ -1972,7 +1972,7 @@

struct vcpu *v = current;

struct domain *d = v->domain;

unsigned long type_info;

- struct domain_mmap_cache mapcache, sh_mapcache;

+ struct domain_mmap_cache mapcache = {0,0,0}, sh_mapcache;

LOCK_BIGLOCK(d);

Thanks & Regards,

Nitin

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