[ovs-dev] openvswitch 2.0.0 build breaks on PPC

[Ben Pfaff]

On Wed, Oct 30, 2013 at 04:15:05PM -0200, Flavio Leitner wrote:
> On Wed, Oct 30, 2013 at 10:28:31AM -0700, Ben Pfaff wrote:
> > On Wed, Oct 30, 2013 at 10:33:31AM -0200, Flavio Leitner wrote:
> > > On Tue, Oct 29, 2013 at 11:13:17AM -0700, Ben Pfaff wrote:
> > > > On Tue, Oct 29, 2013 at 03:15:58PM -0200, Flavio Leitner wrote:
> > > > > On Tue, Oct 29, 2013 at 08:37:58AM -0700, Ben Pfaff wrote:
> > > > > > On Tue, Oct 29, 2013 at 10:51:02AM -0200, Flavio Leitner wrote:
> > > > > > > While updating the packages to 2.0.0 I found that the build fails on
> > > > > > > PPC.
> > > > > > > 
> > > > > > > I am not an expert on PPC arch, but I think it doesn't support atomic
> > > > > > > operations of 8 bytes (64bit) on 32bit system, then there is no GCC
> > > > > > > built-in[1] for those cases which breaks the build.
> > > > > > 
> > > > > > I only see build failures in the test-atomic program.  That's a good
> > > > > > sign that we only use these 8-byte atomic operations in the test
> > > > > > program, not in real code.  Are there other build failures?  (Does "make
> > > > > > vswitchd/ovs-vswitchd" succeed?)
> > > > > 
> > > > > I've applied the patch below commenting out the problematic ones
> > > > > in test-atomic to work around and I was able to build the rpms.
> > > > > So, yeah, that's the only issue as far as I can see.
> > > > 
> > > > Did you run the OVS testsuite?  Any failures?
> > > 
> > > Yes, see below and the attached file testsuite.log.
> > 
> > In that case, there's significantly more going on than just 8-byte
> > atomic operations in tests.  If you have time to dig into the
> > problems, please go ahead, otherwise I will look next week or the week
> > after.
>  
> You're saying that the other failures in the testsuite.log are
> somehow related to the 8-byte atomic operations?

No, I'm saying that the other failures are unrelated to those and so
they need to be investigated.  Removing the 8-byte atomic operations
from the testsuite, by themselves, will not help

> I am seeing some tests failing on x86_64 as well, 34/1328.
> They are 306~313, 1136, 1138~1162.

OK, could you send the testsuite.log for those?  I'm not aware of any
test failures on x86_64.