More tests failing under highly parallel builds.

[Florian Weimer]

On 07/16/2016 02:27 AM, Carlos O'Donell wrote:
> During glibc-2.24 release testing for AArch64, ppc64, ppc64le,
> and x86_64 I would, depending on the system load see:
>
> FAIL: localedata/bug-iconv-trans
> FAIL: localedata/tst-mbswcs6
> FAIL: localedata/tst-trans
> FAIL: localedata/tst-wctype
> FAIL: localedata/tst_mblen
> FAIL: localedata/tst_mbrlen
> FAIL: localedata/tst_mbsrtowcs
> FAIL: localedata/tst_mbstowcs
> FAIL: localedata/tst_mbtowc
> FAIL: localedata/tst_swscanf
> FAIL: localedata/tst_wcrtomb
> FAIL: localedata/tst_wcsrtombs
> FAIL: localedata/tst_wcstombs
> FAIL: localedata/tst_wctob
> FAIL: localedata/tst_wctomb
>
> They fail with SIGSEGV.

I have never seen these.

> cat glibc/localedata/bug-iconv-trans.test-result
> FAIL: localedata/bug-iconv-trans
> original exit status 139
>
> Run manually the test passes just fine.

Can you patch the test skeleton not to suppress core dumps and try again 
to reproduce?  Maybe we'll get a usable core file this way.

Thanks,
Florian