Re: after upgrade: glibc detected *** /usr/bin/perl: double free or corruption

On Oct 3, 2008, at 8:03 AM, Peter Karman wrote:
> Peter Daum wrote on 10/03/2008 07:35 AM:
>> Peter Daum wrote:
>>> I recently upgraded a system (as far as perl is concerned from 5.8.8
>>> to 5.10.0). Afterwards I ran into a mysterious problem. I could
>>> eventually
>>> find a  workaround, but still don't really understand, what is  
>>> going on.
>>>
>>> After the upgrade, a perl program wouldn't run anymore - it crashed
>>> with a message:"*** glibc detected *** /usr/bin/perl: double free or
>>> corruption (fasttop): ..." and a memory map suggesting some  
>>> problem on
>>> the heap.
>
> I've seen that error message when the version of glibc changes. Have  
> you
> tried re-installing Net::LDAP so that is is compiled against the same
> libs that your perl is?

Net::LDAP itself is pure perl, so that would not make a difference.

Also this is not due to the library any program is linked to. In newer  
versions of glibc they added a this warning for when free() is called  
multiple times. I forget the versions, but we saw this in a lot of  
apps at a previous employer when they upgraded RHEL, which introduced  
the new glibc

Graham.