calling a function via PLT and jemalloc realloc changes function first argument (XMM0)
ingvar at redpill-linpro.com
Tue Nov 26 04:23:49 PST 2013
David Abdurachmanov wrote:
> I am having problems with jemalloc 3.4.1 (currently we use 2.2.2 in
> production). I found that with jemalloc 3.4.1 function first argument
> will be changed if first argument is passed by XMM0 register. Compiled
> with GCC 4.8.1 (tested also with 4.8.2). No problems on Scientific
> Linux 6 (RHEL6-based), but it fails on Scientific Linux 5
> (RHEL5-based). All of this is because _dl_lookup_symbol_x calls
> _realloc_ in Scientific Linux 5.
> This probably makes jemalloc 3.4.1 and the whole 3.X.Y series not
> recommended for RHEL5 and RHEL5-based distributions.
Just a note from the EPEL* maintainer. EPEL6 has jemalloc-3.4.x. EPEL5
has stayed on 3.1.x for a while, and unless there are serious bugs that
should be fixed, I don't plan to update it.
*) EPEL is the Fedora "Extra packages for Enterprise Linux" project,
that is, repackaged Fedora RPMS for Red Hat Enterprise Linux and clones
like CentOS and Scientific Linux.
More information about the jemalloc-discuss