bzr push into mysql-trunk branch (oystein.grovlen:3620 to 3621) Bug#12876523

[Oystein Grovlen]

 3621 Oystein Grovlen	2011-11-17
      Bug#12876523: VALGRIND FAILURE IN COMPRESSION TESTS
      
      The valgrind issue happens in the zlib package,
      and according to the zlib FAQ, it is intentional for
      performance reasons (http://www.zlib.net/zlib_faq.html#faq36).
      
      The current valgrind suppression file contains several call
      stacks for valgrind issues with deflate().  However, all the
      existing stacks differ from the one reported here at the
      4th level.
      
      I assume the failing stack trace must be due to inlining
      in optimized builds, but I have not been able to reproduce
      it on my available platforms.  However, I see no reason that
      the suppression rules should distinguish on which MySQL
      function call deflate() when there is a known problem with
      how deflate() works.  By limiting the stack in the suppression
      file to 3 levels, we can also reduce the number of suppression
      rules for deflate().
     @ mysql-test/valgrind.supp
        Make a general suppression rule for deflate() so that 
        it also covers some call stacks that only appear in optimized builds on some platforms.

    modified:
      mysql-test/valgrind.supp
 3620 Rafal Somla	2011-11-17 [merge]
      Merge of bug#13101974

    modified:
      libmysql/CMakeLists.txt
      sql/CMakeLists.txt
=== modified file 'mysql-test/valgrind.supp'
--- a/mysql-test/valgrind.supp	2011-11-08 14:48:33 +0000
+++ b/mysql-test/valgrind.supp	2011-11-17 14:07:41 +0000
@@ -187,70 +187,6 @@
    fun:longest_match
    fun:deflate_slow
    fun:deflate
-   fun:do_flush
-}
-
-{
-   libz longest_match called from btr_store_big_rec_extern_fields
-   Memcheck:Cond
-   fun:longest_match
-   fun:deflate_slow
-   fun:deflate
-   fun:btr_store_big_rec_extern_fields
-}
-
-{
-   libz longest_match called from page_zip_compress
-   Memcheck:Cond
-   fun:longest_match
-   fun:deflate_slow
-   fun:deflate
-   fun:page_zip_compress
-}
-
-{
-   libz longest_match2
-   Memcheck:Cond
-   fun:longest_match
-   fun:deflate_slow
-   fun:deflate
-   fun:compress2
-}
-
-{
-   libz longest_match 3
-   Memcheck:Cond
-   fun:longest_match
-   fun:deflate_slow
-   fun:deflate
-   fun:gzclose
-}
-
-{
-   libz longest_match 4 
-   Memcheck:Cond
-   fun:longest_match
-   fun:deflate_slow
-   fun:deflate
-   fun:gzflush
-}
-
-{
-   libz longest_match3
-   Memcheck:Cond
-   fun:longest_match
-   fun:deflate_slow
-   fun:deflate
-   fun:azflush
-}
-
-{
-   libz longest_match3
-   Memcheck:Cond
-   fun:longest_match
-   fun:deflate_slow
-   fun:deflate
-   fun:azclose
 }
 
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