Hi! On Mon, 18 Aug 2014 17:17:53 +0200, Manuel López-Ibáñez <lopeziba...@gmail.com> wrote: > On 18 August 2014 16:34, Alexander Potapenko <gli...@google.com> wrote: > > On Mon, Aug 18, 2014 at 9:43 AM, Yury Gribov <y.gri...@samsung.com> wrote: > >> On 08/18/2014 09:42 AM, Yury Gribov wrote: > >>> > >>> On 08/16/2014 04:37 AM, Manuel López-Ibáñez wrote: > >>>> > >>>> On the compile farm, ASAN tests seem to fail a lot like: > >>>> > >>>> FAIL: c-c++-common/asan/global-overflow-1.c -O0 output pattern > >>>> test, is ==31166==ERROR: AddressSanitizer failed to allocate > >>>> 0xdfff0001000 (15392894357504) bytes at address 2008fff7000 (errno: > >>>> 12) > >>>> ==31166==ReserveShadowMemoryRange failed while trying to map > >>>> 0xdfff0001000 bytes. Perhaps you're using ulimit -v > >>>> , should match READ of size 1 at 0x[0-9a-f]+ thread T0.*(
I'm also annoyed by this, due to »ulimit -v 4194304« being set. > >>>> The problem is that those addresses and sizes are very random, > > The output pattern that must be printed has these addresses masked out > > (note "0x[0-9a-f]+" in your report). > > No other lines with varying addresses should be printed. > > For the record, I think the fault lies in the GCC testing > infrastructure and not in ASAN. It is wrong to print as the test error > message the output of ASAN. It should print > > FAIL: c-c++-common/asan/global-overflow-1.c -O0 output pattern > test, is ERROR > > This is enough to see that something failed. For details one can go to > the detailed logs. But I didn't add the asan testing infrastructure > and I couldn't figure out how to fix this. > > Any suggestions? Richard Sandiford has already addressed this in DejaGnu upstream, <http://news.gmane.org/find-root.php?message_id=%3C87bo0samke.fsf%40talisman.default%3E>, so you now "just" need to wait for the next DejaGnu release to be made and packaged for your distribution, or you manually patch /usr/share/dejagnu/dg.exp:dg-test, or add a patched dg-test to a suitable gcc/testsuite/lib/*.exp file to override the system one. Grüße, Thomas
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