Re: [Xen-devel] check-headers error in staging

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 07/01/15 12:37, Olaf Hering wrote:
> After upgrade to current staging, my test packages fail to build:
>
> [  289s] + make -j4 -k -C tools/include/xen-foreign
> [  289s] make: Entering directory 
> `/usr/src/packages/BUILD/xen-4.6.0.30084/non-dbg/tools/include/xen-foreign'
> [  289s] python mkheader.py arm32 arm32.h 
> /usr/src/packages/BUILD/xen-4.6.0.30084/non-dbg/tools/include/xen-foreign/../../../xen/include/public/arch-arm.h
>  
> /usr/src/packages/BUILD/xen-4.6.0.30084/non-dbg/tools/include/xen-foreign/../../../xen/include/public/xen.h
> [  289s] python mkheader.py arm64 arm64.h 
> /usr/src/packages/BUILD/xen-4.6.0.30084/non-dbg/tools/include/xen-foreign/../../../xen/include/public/arch-arm.h
>  
> /usr/src/packages/BUILD/xen-4.6.0.30084/non-dbg/tools/include/xen-foreign/../../../xen/include/public/xen.h
> [  289s] python mkheader.py x86_32 x86_32.h 
> /usr/src/packages/BUILD/xen-4.6.0.30084/non-dbg/tools/include/xen-foreign/../../../xen/include/public/arch-x86/xen-x86_32.h
>  
> /usr/src/packages/BUILD/xen-4.6.0.30084/non-dbg/tools/include/xen-foreign/../../../xen/include/
> [  289s] python mkheader.py x86_64 x86_64.h 
> /usr/src/packages/BUILD/xen-4.6.0.30084/non-dbg/tools/include/xen-foreign/../../../xen/include/public/arch-x86/xen-x86_64.h
>  
> /usr/src/packages/BUILD/xen-4.6.0.30084/non-dbg/tools/include/xen-foreign/../../../xen/include/
> [  289s] python mkchecker.py checker.c arm32 arm64 x86_32 x86_64
> [  289s] gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer 
> -fno-strict-aliasing -Wdeclaration-after-statement -o checker checker.c
> [  289s] ./checker > tmp.size
> [  289s] diff -u reference.size tmp.size
> [  289s] --- reference.size     2015-01-07 10:28:57.000000000 +0000
> [  289s] +++ tmp.size   2015-01-07 12:28:33.564911299 +0000
> [  289s] @@ -9,6 +9,6 @@
> [  289s]  arch_vcpu_info            |       0       0      24      16
> [  289s]  vcpu_time_info            |      32      32      32      32
> [  289s]  vcpu_info                 |      48      48      64      64
> [  289s] -arch_shared_info          |       0       0     268     280
> [  289s] -shared_info               |    1088    1088    2584    3368
> [  289s] +arch_shared_info          |       0       0      24      48
> [  289s] +shared_info               |    1088    1088    2340    3136
> [  289s]
> [  289s] make: *** [check-headers] Error 1
>
>
> this was the last successful build:
> xen_hg_changeset Mon Dec 15 17:40:12 2014 +0000 hg: 30046:cefc36150538
>
> this build fails:
> xen_hg_changeset Wed Jan 07 11:28:57 2015 +0100 hg: 30084:88d114af72d8
>
>
> So it looks like something between git commites dcd8486..dd94cac causes this 
> failure.

It will be c/s dac6d3b1a "expand x86 arch_shared_info to support linear
p2m list"

There is a shrink to the size of arch_shared_info, but was argued and
accepted as safe to do.

~Andrew

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