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Bug#48327: Some crashes specific to FreeBSD ("embedded")

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Bug#47139: Test "merge" crashes in "embedded" run

Backport patch for Bug#47139
This commit is contained in:
Davi Arnaut 2010-07-16 14:33:35 -03:00
parent dcaef2424e
commit 92f3fc92f3
1 changed files with 5 additions and 2 deletions
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7
storage/myisam/mi_dynrec.c
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@ -66,9 +66,12 @@ static int _mi_cmp_buffer(File file, const uchar *buff, my_off_t filepos,
my_bool mi_dynmap_file(MI_INFO *info, my_off_t size)
{
DBUG_ENTER("mi_dynmap_file");
if (size > (my_off_t) (~((size_t) 0)))
if (size == 0 || size > (my_off_t) (~((size_t) 0)))
{
DBUG_PRINT("warning", ("File is too large for mmap"));
if (size)
DBUG_PRINT("warning", ("File is too large for mmap"));
else
DBUG_PRINT("warning", ("Do not mmap zero-length"));
DBUG_RETURN(1);
}
/*