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Posted to dev@subversion.apache.org by Philip Martin <ph...@wandisco.com> on 2012/01/04 13:46:05 UTC

Re: svn commit: r1215374 - /subversion/trunk/subversion/libsvn_ra_neon/log.c

cmpilato@apache.org writes:

> Author: cmpilato
> Date: Sat Dec 17 00:56:00 2011
> New Revision: 1215374
>
> URL: http://svn.apache.org/viewvc?rev=1215374&view=rev
> Log:
> Followup to r1215260, just tightening up some loose logic.
>
> * subversion/libsvn_ra_neon/log.c
>   (log_start_element): Reduce the scope of the check for an encoding
>     to just those tags for which it makes sense to have one.  While
>     here, fix a long-standing potential segfault (apr_pstrdup on NULL
>     input).
>   (maybe_decode_log_cdata): Lose 'pool' parameter, and just store in
>     the result in lb->subpool.
>   (log_end_element): Update call to maybe_decode_log_cdata().

This causes log_tests.py 25 to fail with neon when built with -O2 on
my Linux box, the test passes when built -O0.  The compiler warns

../src/subversion/libsvn_ra_neon/log.c: In function ‘log_end_element’:
../src/subversion/libsvn_ra_neon/log.c:293: warning: ‘decoded_cdata’ may be used uninitialized in this function

but that may not be the cause since the patch below doesn't fix the
fail:

Index: subversion/libsvn_ra_neon/log.c
===================================================================
--- subversion/libsvn_ra_neon/log.c	(revision 1227106)
+++ subversion/libsvn_ra_neon/log.c	(working copy)
@@ -292,8 +292,7 @@
   struct log_baton *lb = baton;
   const svn_string_t *decoded_cdata;
 
-  if (lb->want_cdata)
-    SVN_ERR(maybe_decode_log_cdata(&decoded_cdata, lb));
+  SVN_ERR(maybe_decode_log_cdata(&decoded_cdata, lb));
 
   switch (state)
     {

-- 
Philip

Re: svn commit: r1215374 - /subversion/trunk/subversion/libsvn_ra_neon/log.c

Posted by "C. Michael Pilato" <cm...@collab.net>.
On 01/04/2012 08:25 AM, Philip Martin wrote:
> Philip Martin <ph...@wandisco.com> writes:
> 
>> This causes log_tests.py 25 to fail with neon when built with -O2 on
>> my Linux box, the test passes when built -O0.
> 
> valgrind identified the problem, fixed by r1227146.
> 

Thanks, Philip!

-- 
C. Michael Pilato <cm...@collab.net>
CollabNet   <>   www.collab.net   <>   Distributed Development On Demand

Re: svn commit: r1215374 - /subversion/trunk/subversion/libsvn_ra_neon/log.c

Posted by Philip Martin <ph...@wandisco.com>.
Philip Martin <ph...@wandisco.com> writes:

> This causes log_tests.py 25 to fail with neon when built with -O2 on
> my Linux box, the test passes when built -O0.

valgrind identified the problem, fixed by r1227146.

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