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non-reproducible g++.dg/ubsan/align-2.C -Os execution failure
- From: Tom de Vries <Tom_deVries at mentor dot com>
- To: <gcc at gcc dot gnu dot org>
- Date: Thu, 4 Sep 2014 09:12:22 +0200
- Subject: non-reproducible g++.dg/ubsan/align-2.C -Os execution failure
- Authentication-results: sourceware.org; auth=none
Hi,
I ran into this non-reproducible failure while testing a non-bootstrap build on
x86_64:
...
PASS: g++.dg/ubsan/align-2.C -Os (test for excess errors)
Setting LD_LIBRARY_PATH to
.:/data/vries/test-fix-fuse-caller-save-s390/with/nobootstrap/build/x86_64-unknown-linux-gnu/./libstdc++-v3/src/.libs:/dat\
a/vries/test-fix-fuse-caller-save-s390/with/nobootstrap/build/x86_64-unknown-linux-gnu/./libstdc++-v3/src/.libs:/home/vries/gcc_versions/data/test-fi\
x-fuse-caller-save-s390/with/nobootstrap/build/gcc:/home/vries/gcc_versions/data/test-fix-fuse-caller-save-s390/with/nobootstrap/build/gcc/32:/data/v\
ries/test-fix-fuse-caller-save-s390/with/nobootstrap/build/x86_64-unknown-linux-gnu/./libsanitizer/ubsan/.libs:.:/data/vries/test-fix-fuse-caller-sav\
e-s390/with/nobootstrap/build/x86_64-unknown-linux-gnu/./libstdc++-v3/src/.libs:/data/vries/test-fix-fuse-caller-save-s390/with/nobootstrap/build/x86\_64-unknown-linux-gnu/./libstdc++-v3/src/.libs:/home/vries/gcc_versions/data/test-fix-fuse-caller-save-s390/with/nobootstrap/build/gcc:/home/vries/gc\
c_versions/data/test-fix-fuse-caller-save-s390/with/nobootstrap/build/gcc/32:/data/vries/test-fix-fuse-caller-save-s390/with/nobootstrap/build/x86_64\
-unknown-linux-gnu/./libsanitizer/ubsan/.libs:/home/vries/gcc_versions/infra/lib
spawn [open ...]^M
/home/vries/gcc_versions/data/test-fix-fuse-caller-save-s390/with/src/gcc/testsuite/g++.dg/ubsan/align-2.C:16:13:
runtime error: reference binding to\ misaligned address 0x000000600fe9 for type
'int', which requires 4 byte alignment
0x000000600fe9: note: pointer points here
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00FAIL: g++.dg/ubsan/align-2.C -Os execution test
...
The sources used where r214879 + a trivial patch (
https://gcc.gnu.org/ml/gcc-patches/2014-09/msg00253.html ) which should not make
a difference on x86_64.
Configure line:
...
Configured with:
/home/vries/gcc_versions/data/test-fix-fuse-caller-save-s390/with/src/configure
--prefix=/home/vries/gcc_versions/data/test-fix-fuse-caller-save-s390/with/nobootstrap/install
--with-cloog=/home/vries/gcc_versions/infra
--with-ppl=/home/vries/gcc_versions/infra
--with-gmp=/home/vries/gcc_versions/infra
--with-mpfr=/home/vries/gcc_versions/infra
--with-mpc=/home/vries/gcc_versions/infra --disable-bootstrap
--enable-checking=yes,rtl --enable-languages=c,fortran,ada,java,objc,c++
...
I'm posting it here for reference.
Thanks,
- Tom