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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:24:58 +0000 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:27:06 +0000 |
| commit | 33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch) | |
| tree | 406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1701835 | |
| parent | adedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff) | |
| download | qemu-analysis-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz qemu-analysis-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip | |
add launchpad bug reports without comments
Diffstat (limited to 'results/scraper/launchpad-without-comments/1701835')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1701835 | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1701835 b/results/scraper/launchpad-without-comments/1701835 new file mode 100644 index 000000000..38d9da1b7 --- /dev/null +++ b/results/scraper/launchpad-without-comments/1701835 @@ -0,0 +1,167 @@ +floating-point operation bugs in qemu-alpha + +When running the gnulib testsuite, I'm seeing test failures in the tests for libm functions + cbrt + cbrtf + ceil + ceilf + coshf + exp2 + exp2f + floor + floorf + fma + fmaf + fmal + frexp + frexpf + hypot + hypotf + hypotl + ilogb + ilogbf + isfinite + isinf + isnan + isnand + isnanf + ldexp + ldexpf + ldexpl + log1p + log1pf + log2 + log2f + logb + logbf + logbl + rint + rintf + rintl + signbit + sqrt + sqrtf + strtod +that I don't see when running the same (statically linked) executables in a VM, through qemu-system-alpha. + +How to reproduce: +- Using gnulib, run ./gnulib-tool --create-testdir --dir=../testdir-math --single-configure cbrt cbrtf ceil ceilf coshf exp2 exp2f float floor floorf fma fmaf fmal frexp frexpf hypot hypotf hypotl ilogb ilogbf isfinite isinf isnan isnand isnanf ldexp ldexpf ldexpl log1p log1pf log2 log2f logb logbf logbl math printf-frexp rint rintf rintl round roundf signbit sqrt sqrtf strtod trunc truncf +- Copy the resulting directory to a VM running Linux 2.6.26 with qemu-system-alpha. +- There, configure and build the package: + mkdir build-native-static; cd build-native-static; ../configure CPPFLAGS="-Wall" LDFLAGS="-static"; make; make check + Only 4 tests fail. +- Copy the resulting binaries back to the original x86_64 machine. +- Set environment variables for using qemu-alpha. +- Here, 50 tests fail that did not fail originally: + +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-cbrt +../../gltests/test-cbrt.h:39: assertion 'err > - L_(4.0) * L_(16.0) / TWO_MANT_DIG && err < L_(4.0) * L_(16.0) / TWO_MANT_DIG' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-ceil1 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-ceil2 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-ceilf1 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-ceilf2 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-coshf +../../gltests/test-coshf.c:37: assertion 'y >= 1.1854652f && y <= 1.1854653f' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-float +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-floor1 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-floor2 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-floorf1 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-floorf2 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-fma1 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-fma2 +../../gltests/test-fma2.h:116: assertion 'result == expected' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-fmaf1 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-fmaf2 +../../gltests/test-fma2.h:116: assertion 'result == expected' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-fmal2 +../../gltests/test-fma2.h:116: assertion 'result == expected' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-frexp +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-frexpf +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-hypot +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-hypotf +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-hypotl +../../gltests/test-hypot.h:41: assertion 'z == HUGEVAL' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-ilogb +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-ilogbf +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-isfinite +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-isinf +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-isnan +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-isnand-nolibm +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-isnand +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-isnanf-nolibm +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-isnanf +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-ldexp +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-ldexpf +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-ldexpl +../../gltests/test-ldexp.h:99: assertion 'y == expected' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-log1p +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-log1pf +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-log2 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-log2f +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-logb +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-logbf +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-math +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-printf-frexp +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-rint +../../gltests/test-rint.c:63: assertion 'rint (0.7) == 1.0' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-rintf +../../gltests/test-rintf.c:63: assertion 'rintf (0.7f) == 1.0f' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-rintl +../../gltests/test-rintl.c:68: assertion 'rintl (0.7L) == 1.0L' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-round1 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-roundf1 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-signbit +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-sqrt +../../gltests/test-sqrt.h:40: assertion 'err > - L_(16.0) / TWO_MANT_DIG && err < L_(16.0) / TWO_MANT_DIG' failed +Aborted (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-trunc1 +Floating point exception (core dumped) +$ ~/inst-qemu/2.9.0/bin/qemu-alpha test-truncf1 +Floating point exception (core dumped) \ No newline at end of file |