RFR: 8011760 assert(delta != 0) failed: dup pointer in MemBaseline::malloc_sort_by_addr

[Zhengyu Gu]

Thanks for the quick review.

-Zhengyu

On Jul 8, 2013, at 2:12 PM, Daniel D. Daugherty wrote:

> On 7/8/13 11:23 AM, Zhengyu Gu wrote:
>> This is a simple fix to qsort's comparison function. The bug is related to libc version, it only happens on Linux 32 bit with certain versions of libc. The one I used to reproduce, is libc-2.11.1.so.
>> 
>> Most of qsort algorithms do not compare element to itself, but apparently it is not the case with certain version of Linux 32 libc implementation.
>> 
>> 
>> JBS:   https://jbs.oracle.com/bugs/browse/JDK-8011760
>> Public bug: not available
>> Webrev:  http://cr.openjdk.java.net/~zgu/8011760/webrev.00/
> 
> src/share/vm/services/memBaseline.cpp
>    No comments
> 
> 
> Thumbs up!
> 
> Dan
> 
> 
>> 
>> 
>> Thanks,
>> 
>> -Zhengyu
>