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* [Bug math/17678] New: Testing failed about expm1
@ 2014-12-04 1:25 wuxiang at iscas dot ac.cn
2014-12-04 6:43 ` [Bug math/17678] " wuxiang at iscas dot ac.cn
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: wuxiang at iscas dot ac.cn @ 2014-12-04 1:25 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17678
Bug ID: 17678
Summary: Testing failed about expm1
Product: glibc
Version: 2.19
Status: NEW
Severity: normal
Priority: P2
Component: math
Assignee: unassigned at sourceware dot org
Reporter: wuxiang at iscas dot ac.cn
The following error was encountered when build the eglibc-2.19.
make[2]: Target `check' not remade because of errors.
make[2]: Leaving directory `/home/nano/zwx/eglibc-2.19'
make[1]: *** [check] Error 2
make[1]: Leaving directory `/home/nano/zwx/eglibc-2.19/build-tree/i386-libc'
#
# Testsuite failures, someone should be working towards
# fixing these! They are listed here for the purpose of
# regression testing during builds.
# Format: , Error [(ignored)]
#
annexc.out, Error 1 (ignored)
run-conformtest.out, Error 1 (ignored)
test-double.out, Error 1
test-float.out, Error 1
test-idouble.out, Error 1
test-ifloat.out, Error 1
tst-cputimer1.out, Error 1
***************
Encountered regressions that don't match expected failures
(debian/testsuite-checking/expected-results-i686-linux-gnu-libc):
test-double.out, Error 1
test-float.out, Error 1
test-idouble.out, Error 1
test-ifloat.out, Error 1
TEST test-double.out:
testing double (without inline functions)
Failure: Test: expm1_towardzero (-0x1p-64)
Result:
is: -5.42101086242752217003e-20 -0x1.00000000000000000000p-64
should be: -5.42101086242752156818e-20 -0x1.fffffffffffff0000000p-65
difference: 6.01853107621011204079e-36 0x1.00000000000000000000p-117
ulp : 1.0000
max.ulp : 0.0000
Failure: Test: expm1_downward (-0x1p-64)
Result:
is: -5.42101086242752337375e-20 -0x1.00000000000010000000p-64
should be: -5.42101086242752217004e-20 -0x1.00000000000000000000p-64
difference: 1.20370621524202240815e-35 0x1.00000000000000000000p-116
ulp : 1.0000
max.ulp : 0.0000
Failure: Test: expm1_upward (-0x1p-64)
Result:
is: -5.42101086242752217003e-20 -0x1.00000000000000000000p-64
should be: -5.42101086242752156818e-20 -0x1.fffffffffffff0000000p-65
difference: 6.01853107621011204080e-36 0x1.00000000000000000000p-117
ulp : 1.0000
max.ulp : 0.0000
Test suite completed:
15788 test cases plus 15136 tests for exception flags and
15136 tests for errno executed.
3 errors occurred.
TEST test-float.out:
testing float (without inline functions)
Failure: Test: expm1_towardzero (-0x1p-64)
Result:
is: -5.42101086242752217003e-20 -0x1.00000000000000000000p-64
should be: -5.42101053931009539151e-20 -0x1.fffffe00000000000000p-65
difference: 3.23117426778526435496e-27 0x1.00000000000000000000p-88
ulp : 1.0000
max.ulp : 0.0000
Failure: Test: expm1_downward (-0x1p-64)
Result:
is: -5.42101150866237572710e-20 -0x1.00000200000000000000p-64
should be: -5.42101086242752217004e-20 -0x1.00000000000000000000p-64
difference: 6.46234853557052870993e-27 0x1.00000000000000000000p-87
ulp : 1.0000
max.ulp : 0.0000
Failure: Test: expm1_upward (-0x1p-64)
Result:
is: -5.42101086242752217003e-20 -0x1.00000000000000000000p-64
should be: -5.42101053931009539151e-20 -0x1.fffffe00000000000000p-65
difference: 3.23117426778526435497e-27 0x1.00000000000000000000p-88
ulp : 1.0000
max.ulp : 0.0000
Test suite completed:
10839 test cases plus 10240 tests for exception flags and
10240 tests for errno executed.
3 errors occurred.
TEST test-idouble.out:
testing double (inline functions)
Failure: Test: expm1_downward (-0x1p-64)
Result:
is: -5.42101086242752337375e-20 -0x1.00000000000010000000p-64
should be: -5.42101086242752217004e-20 -0x1.00000000000000000000p-64
difference: 1.20370621524202240815e-35 0x1.00000000000000000000p-116
ulp : 1.0000
max.ulp : 0.0000
Test suite completed:
15636 test cases plus 14984 tests for exception flags and
14984 tests for errno executed.
1 errors occurred.
TEST test-ifloat.out:
testing float (inline functions)
Failure: Test: expm1_downward (-0x1p-64)
Result:
is: -5.42101150866237572710e-20 -0x1.00000200000000000000p-64
should be: -5.42101086242752217004e-20 -0x1.00000000000000000000p-64
difference: 6.46234853557052870993e-27 0x1.00000000000000000000p-87
ulp : 1.0000
max.ulp : 0.0000
Test suite completed:
10733 test cases plus 10134 tests for exception flags and
10134 tests for errno executed.
1 errors occurred.
Encountered progressions that don't match expected failures:
tst-backtrace6.out, Error 1
tst-cpuclock2.out, Error 1
tst-mqueue5.out, Error 1
tst-timer.out, Error 139
tst-waitid.out, Error 1
make: *** [/home/nano/zwx/eglibc-2.19/stamp-dir/check_libc] Error 1
dpkg-buildpackage: error: debian/rules build gave error exit status 2
Is it the "difference" not small enough?
My os is: 32 bit ubuntu 14.04
the processor is: VIA Nano X2 L4350
Compiler: gcc-4.8
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* [Bug math/17678] Testing failed about expm1
2014-12-04 1:25 [Bug math/17678] New: Testing failed about expm1 wuxiang at iscas dot ac.cn
@ 2014-12-04 6:43 ` wuxiang at iscas dot ac.cn
2014-12-04 7:01 ` wuxiang at iscas dot ac.cn
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: wuxiang at iscas dot ac.cn @ 2014-12-04 6:43 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17678
--- Comment #1 from zhangwuxiang <wuxiang at iscas dot ac.cn> ---
I use the apt-get source command to get my eglibc source code on unbunt 14.04.
And use dpkg-buildpackage to build the source for the deb packages.
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* [Bug math/17678] Testing failed about expm1
2014-12-04 1:25 [Bug math/17678] New: Testing failed about expm1 wuxiang at iscas dot ac.cn
2014-12-04 6:43 ` [Bug math/17678] " wuxiang at iscas dot ac.cn
@ 2014-12-04 7:01 ` wuxiang at iscas dot ac.cn
2014-12-04 15:51 ` joseph at codesourcery dot com
2015-03-25 0:12 ` jsm28 at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: wuxiang at iscas dot ac.cn @ 2014-12-04 7:01 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17678
zhangwuxiang <wuxiang at iscas dot ac.cn> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |wuxiang at iscas dot ac.cn
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* [Bug math/17678] Testing failed about expm1
2014-12-04 1:25 [Bug math/17678] New: Testing failed about expm1 wuxiang at iscas dot ac.cn
2014-12-04 6:43 ` [Bug math/17678] " wuxiang at iscas dot ac.cn
2014-12-04 7:01 ` wuxiang at iscas dot ac.cn
@ 2014-12-04 15:51 ` joseph at codesourcery dot com
2015-03-25 0:12 ` jsm28 at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: joseph at codesourcery dot com @ 2014-12-04 15:51 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17678
--- Comment #2 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
libm-test-ulps is regenerated each release cycle (at least if there are
significant libm changes justifying full regeneration). If you see these
failures with current git, then during the release freeze in January you
should send a patch resulting from "make regen-ulps" - we need people with
different x86 processors and compilers to take part in the regeneration
process each release cycle so libm-test-ulps reflects the range of ulps
seen on different processors. Filing bugs in Bugzilla for small ulps
errors is not useful.
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* [Bug math/17678] Testing failed about expm1
2014-12-04 1:25 [Bug math/17678] New: Testing failed about expm1 wuxiang at iscas dot ac.cn
` (2 preceding siblings ...)
2014-12-04 15:51 ` joseph at codesourcery dot com
@ 2015-03-25 0:12 ` jsm28 at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2015-03-25 0:12 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17678
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
As these ulps already appear in the libm-test-ulps file for the relevant
rounding modes of expm1, and current glibc (2.20 and later; anything with
commit e6b6a85705be16373fb3f78ef998edc62150499c) only lists ulps for functions
not for individual tests, this is in fact already fixed.
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2014-12-04 1:25 [Bug math/17678] New: Testing failed about expm1 wuxiang at iscas dot ac.cn
2014-12-04 6:43 ` [Bug math/17678] " wuxiang at iscas dot ac.cn
2014-12-04 7:01 ` wuxiang at iscas dot ac.cn
2014-12-04 15:51 ` joseph at codesourcery dot com
2015-03-25 0:12 ` jsm28 at gcc dot gnu.org
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