Hi all, On Mon, Jun 08, 2009 at 08:09:43AM -0400, Jeff Squyres wrote:
> In short: perhaps you could setenv OMPI_MCA_disable_memory_allocator to
> 1, or somesuch. I can easily provide you with a patch (that we'd then
> also commit upstream, but you'll need the patch until we include this
> feature in a release) for such a fix.
I uploaded this change to Debian's openmpi packages yesterday, patch below.
Jeff: will you commit this upstream?
Fakeroot maintainer: will you set OMPI_MCA_disable_memory_allocator to 1
in the fakeroot environment?
Thanks,
-Steve
diff -u -r openmpi-1.3.2/opal/mca/memory/ptmalloc2/hooks.c
../openmpi-1.3.2/opal/mca/memory/ptmalloc2/hooks.c
--- openmpi-1.3.2/opal/mca/memory/ptmalloc2/hooks.c 2009-04-21
22:51:03.000000000 -0500
+++ ../openmpi-1.3.2/opal/mca/memory/ptmalloc2/hooks.c 2009-06-17
21:55:54.000000000 -0500
@@ -725,6 +725,14 @@
check_result_t lpp = check("OMPI_MCA_mpi_leave_pinned_pipeline");
bool want_rcache = false, found_driver = false;
+ /* Allow user to disable memory allocators. We check this and
+ * exit early because in some environments (e.g. Debian fakeroot
+ * the stat() calls below will cause a memory allocation, which
+ * is deadly. See http://bugs.debian.org/531522
+ */
+ if ( RESULT_YES == check("OMPI_MCA_disable_memory_allocator") )
+ return;
+
/* Look for sentinel files (directories) to see if various network
drivers are loaded (yes, I know, further abstraction
violations...).
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