Re: XEN building "make world" broken?

["John C. McCullough" <jmccullo@cs.ucsd.edu>]

A vanilla xen-4.0-testing.hg checkout won't build all the way through.

hg clone http://xenbits.xensource.com/xen-4.0-testing.hg
cd xen-4.0-testing.hg
make world
....
+ rm -rf linux-2.6-pvops.git linux-2.6-pvops.git.tmp
+ mkdir linux-2.6-pvops.git.tmp
+ rmdir linux-2.6-pvops.git.tmp
+ git clone -o xen -n 
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git 
linux-2.6-pvops.git.tmp
Cloning into linux-2.6-pvops.git.tmp...
remote: Counting objects: 1941611, done.
remote: Compressing objects: 100% (318945/318945), done.
remote: Total 1941611 (delta 1614307), reused 1930825 (delta 1604777)
Receiving objects: 100% (1941611/1941611), 397.88 MiB | 3.68 MiB/s, done.
Resolving deltas: 100% (1614307/1614307), done.
+ cd linux-2.6-pvops.git.tmp
+ git checkout -b xen/stable-2.6.32.x xen/xen/stable-2.6.32.x
fatal: git checkout: branch xen/stable-2.6.32.x already exists
...
build failed.


Going exploring:
cd linux-2.6-pvops.git.tpm
git checkout xen/xen/stable-2.6.32.x
..works

git checkout xen/stable-2.6.32.x
..works

Looks like the local xen/stable-2.6.32.x branch that is started in the 
build process got pushed into the main repo.

Removing the local branch creation works:

diff -r 996f7815b070 buildconfigs/src.git-clone
--- a/buildconfigs/src.git-clone        Thu Feb 10 17:26:19 2011 +0000
+++ b/buildconfigs/src.git-clone        Thu Feb 17 11:50:35 2011 -0800
@@ -26,7 +26,7 @@
                 rm -rf $(LINUX_SRCDIR) $(LINUX_SRCDIR).tmp; \
                 mkdir $(LINUX_SRCDIR).tmp; rmdir $(LINUX_SRCDIR).tmp; \
                 $(GIT) clone -o $(XEN_GIT_ORIGIN) -n 
$(XEN_LINUX_GIT_URL) $(LINUX_SRCDIR).tmp; \
-               (cd $(LINUX_SRCDIR).tmp; git checkout -b 
$(XEN_LINUX_GIT_LOCALBRANCH) $(XEN_LINUX_GITREV) ); \
+               (cd $(LINUX_SRCDIR).tmp; git checkout  
$(XEN_LINUX_GITREV) ); \
                 mv $(LINUX_SRCDIR).tmp $(LINUX_SRCDIR); \
         fi
         touch $@

-John

On 02/16/2011 09:04 PM, Todd Deshane wrote:
> On Thu, Feb 17, 2011 at 4:38 AM, Yuvraj Agarwal<yuvraj@cs.ucsd.edu>  wrote:
>    
>> Hi All,
>>      
> <snip>
>    
>> git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
>> linux-2.6-pvops.git.tmp
>> Initialized empty Git repository in
>> /home/yuvraj/XEN-Build/xen-4.0-testing.hg/linux-2.6-pvops.git.tmp/.git/
>> remote: Counting objects: 1941611, done.
>> remote: Compressing objects: 100% (318945/318945), done.
>> remote: Total 1941611 (delta 1614307), reused 1930825 (delta 1604777)
>> Receiving objects: 100% (1941611/1941611), 397.88 MiB | 1.33 MiB/s, done.
>> Resolving deltas: 100% (1614307/1614307), done.
>> + cd linux-2.6-pvops.git.tmp
>> + git checkout -b xen/stable-2.6.32.x xen/xen/stable-2.6.32.x
>> fatal: git checkout: branch xen/stable-2.6.32.x already exists
>>      
> This look like the problem you are running into
> http://lists.xensource.com/archives/html/xen-users/2010-12/msg00166.html
>
> (A problem with your git tree for the kernel.)
>
>    
>> + mv linux-2.6-pvops.git.tmp linux-2.6-pvops.git
>> touch linux-2.6-pvops.git/.valid-src
>> rm -rf build-linux-2.6-pvops_x86_64
>> mkdir -p build-linux-2.6-pvops_x86_64
>> # Re-use config from install dir if one exists. Next try to use
>> # buildconfigs/create_config.sh is one is provided by the source
>> # tree. Finally attempt to use make defconfig.
>> set -e ; \
>>         CONFIG_VERSION=$(sed -ne 's/$(XENGUEST)//; s/^EXTRAVERSION =
>> //p' linux-2.6-pvops.git/Makefile); \
>>         if [ ! -z "" -a -r "" ]; then \
>>           cp  /home/yuvraj/XEN-Build/xen-4.0-testing.hg/build-linux-2.6-pvops_x86_64/.config;
>> \
>>         elif [ -r
>> /home/yuvraj/XEN-Build/xen-4.0-testing.hg/dist/install/boot/config-2.6.$CONFIG_VERSION
>> ] ; then \
>>           cp /home/yuvraj/XEN-Build/xen-4.0-testing.hg/dist/install/boot/config-2.6.$CONFIG_VERSION
>> /home/yuvraj/XEN-Build/xen-4.0-testing.hg/build-linux-2.6-pvops_x86_64/.config
>> ; \
>>         elif [ -e linux-2.6-pvops.git/buildconfigs/create_config.sh ] ; then \
>>           cd linux-2.6-pvops.git&&  sh buildconfigs/create_config.sh \
>>
>> /home/yuvraj/XEN-Build/xen-4.0-testing.hg/build-linux-2.6-pvops_x86_64/.config
>>   x86_64  ; \
>>           echo "Configured build-linux-2.6-pvops_x86_64 using
>> create_config.sh" ; \
>>         elif make -C linux-2.6-pvops.git ARCH=$(sh
>> buildconfigs/select-linux-arch linux-2.6-pvops.git) defconfig
>> O=$(/bin/pwd)/build-linux-2.6-pvops_x86_64 ; then \
>>           echo "Configured build-linux-2.6-pvops_x86_64 using defconfig" ; \
>>         else \
>>           echo "No configuration method found for this kernel" ; \
>>      
> Based on getting an error here and looking above.
> <snip>
>
> This appears to be a question that is probably better addressed on the
> xen-users list. It is better to post there first unless you are sure
> something is really broken.
>
> The Xen code is tested often by many users and developers all over the
> world. I'm pretty sure we would figure out pretty quickly if make
> world was broken :-)
>
> Hope the suggestions above help solve your problem.
>
> Thanks,
> Todd
>
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