Hi, Georg-Johann Lay <a...@gjlay.de> writes:
> For a trivial change that I'd like to bootstrap + regtest, I am > am getting FAILs like: > > $ diff xxx/gcc/testsuite/gcc/gcc.sum yyy/gcc/testsuite/gcc/gcc.sum > 164656c164656 > < PASS: c-c++-common/tsan/atomic_stack.c -O0 output pattern test > --- >> FAIL: c-c++-common/tsan/atomic_stack.c -O0 output pattern test > 164659c164659 > < FAIL: c-c++-common/tsan/atomic_stack.c -O2 output pattern test > --- >> PASS: c-c++-common/tsan/atomic_stack.c -O2 output pattern test > 164662c164662 > < PASS: c-c++-common/tsan/bitfield_race.c -O0 output pattern test > --- >> FAIL: c-c++-common/tsan/bitfield_race.c -O0 output pattern test > 164668c164668 > < PASS: c-c++-common/tsan/fd_pipe_race.c -O0 output pattern test > --- >> FAIL: c-c++-common/tsan/fd_pipe_race.c -O0 output pattern test > 164674c164674 > < FAIL: c-c++-common/tsan/free_race.c -O0 output pattern test > --- >> PASS: c-c++-common/tsan/free_race.c -O0 output pattern test > > Is there anything special so that these tests don't arbitrary flip > their PASS/FAIL state? > > The GCC version that's being tested is current trunk. > The build compiler is GCC v14.2.1. > > The two testsuites (one for xxx and one for yyy) are being run > at the same time (in their tmux panes). For what I know tests > may run at the same time when they are in different build > directories. They can. That's fine. > The configure command is basically > > $ ../../source/gcc/configure > > The command to run the testsuites is > > $ make check > > from the respective top level build directory. For TSAN tests, this might happen on some machines, for a reason I am yet to determine (I've also seen it on cfarm420, but not on my PC). If you wish to confirm this is spurious, you could rerun that part of the testsuite on the same source tree and compare the results. I expect you'll get differences again (and not the same ones as the ones you showed above). I'd love to know why this happens, but haven't looked far into it yet. -- Arsen Arsenović
signature.asc
Description: PGP signature
