Hyrum K Wright wrote on Wed, Sep 21, 2011 at 03:51:01 -0500:
> On Tue, Sep 20, 2011 at 1:53 PM, Daniel Shahaf <danie...@elego.de> wrote:
> > Mattias Engdegård (CC'd) reports on IRC that apr_atomic_xchgptr() in
> > recent APR's is broken, and the brokenness can affect Subversion under
> > certain circumstances:
> >
> > <@danielsh> wayita: t
> > < wayita> gcc 4.0.x or older
> > < wayita> apr 1.3.x or newer
> > < wayita> x86-64 only
> > < wayita> WORKAROUND: --disable-nonportable-atomics to APR's configure
> > < wayita> OS: any unix
> > < wayita> nature of the bug: apr_atomic_xchgptr() does not initialize the 
> > return value
> > < wayita> https://issues.apache.org/bugzilla/show_bug.cgi?id=51851
> > < wayita> manifests as a segfault in svn.
> >
> > I suppose we could recommend --disable-nonportable-atomics in the
> > release notes.  It is undetermined at this time whether Windows 64-bit
> > is affected.
> 
> I'd still like to know what the reaction of the APR folks to this is.
> Has it been reported?  What's their release plan?  Should they be
> recommending the above to their users?
> 
> Fundamentally, this is a bug in APR *not* Subversion.  Let's try to
> get it fixed at the source.
> 

Yes, it's been reported to APR, see wayita's next-to-last utterance.

> -Hyrum
> 
> 
> -- 
> 
> uberSVN: Apache Subversion Made Easy
> http://www.uberSVN.com/

Reply via email to