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merge 5.1 => 5.5

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Tor Didriksen 2011-08-29 09:50:27 +02:00
commit a60790f4db
2 changed files with 34 additions and 11 deletions
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34
mysql-test/valgrind.supp
View file

@ -876,3 +876,37 @@
fun:buf_buddy_free_low
fun:buf_buddy_free
}
{
Bug#12856915 VALGRIND FAILURE IN FILESORT/CREATE_SORT_INDEX / one
Memcheck:Param
write(buf)
obj:*/libpthread*.so
fun:my_write
fun:my_b_flush_io_cache
fun:_my_b_write
fun:_ZL10write_keysP13st_sort_paramPPhjP11st_io_cacheS4_
fun:_ZL13find_all_keysP13st_sort_paramP10SQL_SELECTPPhP11st_io_cacheS6_S6_
fun:_Z8filesortP3THDP8st_tableP13st_sort_fieldjP10SQL_SELECTybPy
}
{
Bug#12856915 VALGRIND FAILURE IN FILESORT/CREATE_SORT_INDEX / two
Memcheck:Param
write(buf)
obj:*/libpthread*.so
fun:my_write
fun:my_b_flush_io_cache
fun:_Z15merge_many_buffP13st_sort_paramPhP10st_buffpekPjP11st_io_cache
fun:_Z8filesortP3THDP8st_tableP13st_sort_fieldjP10SQL_SELECTybPy
}
{
Bug#12856915 VALGRIND FAILURE IN FILESORT/CREATE_SORT_INDEX / three
Memcheck:Param
write(buf)
obj:*/libpthread*.so
fun:my_write
fun:my_b_flush_io_cache
fun:_Z8filesortP3THDP8st_tableP13st_sort_fieldjP10SQL_SELECTybPy
}

11
sql/filesort.cc
View file

@ -972,21 +972,10 @@ static void make_sortkey(register SORTPARAM *param,
if (addonf->null_bit && field->is_null())
{
nulls[addonf->null_offset]|= addonf->null_bit;
#ifdef HAVE_purify
bzero(to, addonf->length);
#endif
}
else
{
#ifdef HAVE_purify
uchar *end= field->pack(to, field->ptr);
uint length= (uint) ((to + addonf->length) - end);
DBUG_ASSERT((int) length >= 0);
if (length)
bzero(end, length);
#else
(void) field->pack(to, field->ptr);
#endif
}
to+= addonf->length;
}