Hi Brice, this one is tricky. I don't see this crash when compiling by hand (./configure && make && make check). I see the crash only when building with rpmbuild. It happens both with 2694 and 2751.
rpmbuild is applying automatically CFLAGS flags. Finally, I have reduced it to cd hwloc-1.2a1r2751/ export CFLAGS='-O2' ./configure && make && make check It works fine with -O1 Please try if you can reproduce the problem with ======================================================= $make clean && export CFLAGS='-g -O2' && ./configure && make && make check ======================================================= This is gdb output: ===================================================== gdb /tmp/J/hwloc-1.2a1r2751/tests/.libs/lt-linux-libnuma (gdb) run Starting program: /tmp/J/hwloc-1.2a1r2751/tests/.libs/lt-linux-libnuma Program received signal SIGSEGV, Segmentation fault. 0x00007ffff7deb632 in hwloc_get_type_depth (topology=0x0, type=HWLOC_OBJ_NODE) at traversal.c:17 ===================================================== I have the feeling it's gcc bug. Any feedback? Thanks Jirka On Wednesday, November 10, 2010 07:33:19 pm Brice Goglin wrote: > I don't see any change in this test between 2694 and 2751. Do you get a > better backtrace if you compile in debug mode (and/or with CFLAGS="-g > -O0") or with gdb? > > Brice > > Le 10/11/2010 15:56, Jirka Hladky a écrit : > > Hi Brice, > > > > just a quick check. > > > > I see following when running make check for hwloc-1.2a1r2694 > > > > ====================================================== > > PASS: hwloc_insert_misc > > *** buffer overflow detected ***: > > /home/jhladky/rpmbuild/BUILD/hwloc-1.2a1r2694/tests/.libs/lt-linux-libnum > > a terminated > > ======= Backtrace: ========= > > /lib64/libc.so.6(__fortify_fail+0x37)[0x30cfcf7707] > > /lib64/libc.so.6[0x30cfcf5720] > > /home/jhladky/rpmbuild/BUILD/hwloc-1.2a1r2694/tests/.libs/lt-linux- > > libnuma[0x401ae9] > > /lib64/libc.so.6(__libc_start_main+0xfd)[0x30cfc1eb1d] > > /home/jhladky/rpmbuild/BUILD/hwloc-1.2a1r2694/tests/.libs/lt-linux- > > libnuma[0x401059] > > ======= Memory map: ======== > > 00400000-00404000 r-xp 00000000 fd:00 1230911 > > /home/jhladky/rpmbuild/BUILD/hwloc-1.2a1r2694/tests/.libs/lt-linux-libnum > > a 00603000-00604000 rw-p 00003000 fd:00 1230911 > > /home/jhladky/rpmbuild/BUILD/hwloc-1.2a1r2694/tests/.libs/lt-linux-libnum > > a 019a6000-019c7000 rw-p 00000000 00:00 0 > > [heap] > > 30cf800000-30cf81e000 r-xp 00000000 08:02 48991 > > /lib64/ld-2.11.2.so > > =================================================== > > > > It's running just fine when using hwloc-1.2a1r2751 > > > > Have you fixed this test in hwloc-1.2a1r2751? > > > > Thanks! > > Jirka
