Random failures while loading iwmmxt compiled binaries

Rex Ashbaugh rexa at xeratech.com
Wed Jun 23 10:24:02 EDT 2010

I don't see anything wrong on the surface.
You might rebuild your eglibc with the code at _dl_important_hwcaps
instrumented for debug.
Some kind of minimal logging could be added.
Anything to give you more visiblity as to what data sequence leads to the

The log data could be written to a 'shared' mmap area in memory. A separate
program could mmap the same area and dump the log for you after the segfault
occurs. The log buffer should 'wrap'  so you don't end up with too much


On Tue, Jun 22, 2010 at 11:59 AM, Enrico Scholz <
enrico.scholz at sigma-chemnitz.de> wrote:

> Rex Ashbaugh <rexa at xeratech.com> writes:
> > Do you have IWMMXT support enabled in your kernel config?
> yes; the mentioned tarball
> >> [3]  https://www.cvg.de/people/ensc/iwmmxt-ld.tar.gz
> contains full .config (and some extra information).
> Enrico
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