http://bugzilla.suse.com/show_bug.cgi?id=1121391 http://bugzilla.suse.com/show_bug.cgi?id=1121391#c5 --- Comment #5 from Charles Arnold <carnold@suse.com> --- (In reply to Jan Beulich from comment #3)

I can't reproduce the -Werror=address-of-packed-member errors (with a gcc build from mid of December last year). Does the RPM build force any warnings on that a non-RPM build would not enable?

Here is the gcc command for the debug build for e820.c gcc -m64 -DBUILD_ID -fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes -Wdeclaration-after-statement -Wno-unused-but-set-variable -Wno-unused-local-typedefs -O1 -fno-omit-frame-pointer -nostdinc -fno-builtin -fno-common -Werror -Wredundant-decls -Wno-pointer-arith -Wvla -pipe -D__XEN__ -include /home/abuild/rpmbuild/BUILD/xen-4.12.0-testing/xen/include/xen/config.h '-D__OBJECT_FILE__="e820.o"' -Wa,--strip-local-absolute -g -MMD -MF ./.e820.o.d -DXEN_BUILD_EFI -I/home/abuild/rpmbuild/BUILD/xen-4.12.0-testing/xen/include -I/home/abuild/rpmbuild/BUILD/xen-4.12.0-testing/xen/include/asm-x86/mach-generic -I/home/abuild/rpmbuild/BUILD/xen-4.12.0-testing/xen/include/asm-x86/mach-default -DXEN_IMG_OFFSET=0x200000 '-D__OBJECT_LABEL__=arch$x86$e820.o' -msoft-float -fno-stack-protector -fno-exceptions -Wnested-externs -DHAVE_AS_VMX -DHAVE_AS_SSE4_2 -DHAVE_AS_EPT -DHAVE_AS_RDRAND -DHAVE_AS_FSGSBASE -DHAVE_AS_RDSEED -U__OBJECT_LABEL__ -DHAVE_AS_QUOTED_SYM '-D__OBJECT_LABEL__=arch/x86/e820.o' -DHAVE_AS_INVPCID -DHAVE_AS_NEGATIVE_TRUE -DHAVE_AS_NOPS_DIRECTIVE -mno-red-zone -fpic -fno-asynchronous-unwind-tables -mno-sse -mskip-rax-setup -DGCC_HAS_VISIBILITY_ATTRIBUTE -mindirect-branch=thunk-extern -mindirect-branch-register -DCONFIG_INDIRECT_THUNK -fno-jump-tables -Wa,-I/home/abuild/rpmbuild/BUILD/xen-4.12.0-testing/xen/include -DBUILD_ID_EFI -c e820.c -o e820.o The only difference in flags between the debug and non debug are, Debug: -O1 -fno-omit-frame-pointer -g Non-Debug: -O2 -fomit-frame-pointer -- You are receiving this mail because: You are on the CC list for the bug.