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From:Bjorn Munch Date:April 20 2012 5:24am
Subject:bzr push into mysql-trunk branch (bjorn.munch:3891 to 3892)
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 3892 Bjorn Munch	2012-04-20
      Some more debugging of running cdb from MTR

    modified:
      mysql-test/lib/My/CoreDump.pm
 3891 Andrei Elkin	2012-04-19
      BUG#13893310
      
      fixing two post-push issues:
      1. Valgrind report
      
      ==26329==    by 0xA3AE2E: my_malloc (my_malloc.c:38)
      ==26329==    by 0xA1A881: init_io_cache (mf_iocache.c:232)
      ==26329==    by 0xA0D883: Rpl_info_file::do_init_info(unsigned long const*, unsigned int) (rpl_info_file.cc:95)
      ==26329==    by 0x9FC69D: Rpl_info_handler::init_info(unsigned long const*, unsigned int) (rpl_info_handler.h:45)
      ==26329==    by 0x9FBE37: Master_info::init_info() (rpl_mi.cc:303)
      ==26329==    by 0x9F6278: init_info(Master_info*, bool, int) (rpl_slave.cc:459)
      ==26329==    by 0x9F96F9: init_slave() (rpl_slave.cc:316)
      
      2. A race condition in rpl_parallel_change_master indicated with
         mysqltest: At line 86: query 'CHANGE MASTER TO RELAY_LOG_FILE='$relay_file', RELAY_LOG_POS=$relay_pos' succeeded - should have failed with errno 1801.
     @ mysql-test/suite/rpl/t/rpl_parallel_change_master.test
        make sure workers doing d2.t1 raced the one that occupied  with d1.t1
        so that on slow environment as well slave stops having gaps.
     @ sql/rpl_mi.cc
        Implementing a deferred cleanup in lack of which
        expect the valgrind to catch:
        ==26329==    by 0xA3AE2E: my_malloc (my_malloc.c:38)
        ==26329==    by 0xA1A881: init_io_cache (mf_iocache.c:232)
        ==26329==    by 0xA0D883: Rpl_info_file::do_init_info
        ******
        Implementing a deferred cleanup in lack of which
        expect the valgrind to catch:
        ==26329==    by 0xA3AE2E: my_malloc (my_malloc.c:38)
        ==26329==    by 0xA1A881: init_io_cache (mf_iocache.c:232)
        ==26329==    by 0xA0D883: Rpl_info_file::do_init_info

    modified:
      mysql-test/suite/rpl/t/rpl_parallel_change_master.test
      sql/rpl_mi.cc
=== modified file 'mysql-test/lib/My/CoreDump.pm'
--- a/mysql-test/lib/My/CoreDump.pm	2012-03-06 14:29:42 +0000
+++ b/mysql-test/lib/My/CoreDump.pm	2012-04-20 05:23:24 +0000
@@ -1,5 +1,5 @@
 # -*- cperl -*-
-# Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -158,7 +158,6 @@ sub cdb_check {
 
 sub _cdb {
   my ($core_name)= @_;
-  print localtime() . " cdb debug A\n";
   print "\nTrying 'cdb' to get a backtrace\n";
   return unless -f $core_name;
   
@@ -184,7 +183,6 @@ sub _cdb {
   # build symbol path (required by cdb if executable was built on 
   # different machine)
   my $tmp_name= $core_name.".cdb_lmv";
-  print localtime() . " cdb debug B\n";
   `cdb -z $core_name -c \"lmv;q\" > $tmp_name 2>&1`;
   print localtime() . " cdb debug C\n";
   if ($? >> 8)
@@ -195,7 +193,7 @@ sub _cdb {
     cdb_check();
     return;
   }
-  
+  print localtime() . " cdb debug E\n";
   open(temp,"< $tmp_name");
   my %dirhash=();
   while(<temp>)
@@ -211,7 +209,7 @@ sub _cdb {
   }
   close(temp);
   unlink($tmp_name);
-  
+  print localtime() . " cdb debug F\n";
   my $image_path= join(";", (keys %dirhash),".");
 
   # For better callstacks, setup _NT_SYMBOL_PATH to include
@@ -242,6 +240,7 @@ sub _cdb {
   my $cdb_output=
     `cdb -c "$cdb_cmd" -z $core_name -i "$image_path" -y "$symbol_path" -t 0 -lines 2>&1`;
   return if $? >> 8;
+  print localtime() . " cdb debug G\n";
   return unless $cdb_output;
   
   # Remove comments (lines starting with *), stack pointer and frame 

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bzr push into mysql-trunk branch (bjorn.munch:3891 to 3892) Bjorn Munch20 Apr