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Bug 254371 - sys-libs/glibc 2.6.1 + 2.7 math test fails (expm1 ulps)
Summary: sys-libs/glibc 2.6.1 + 2.7 math test fails (expm1 ulps)
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: New packages (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Toolchain Maintainers
URL: http://sourceware.org/ml/libc-alpha/2...
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-01-10 00:21 UTC by Carsten Lohrke (RETIRED)
Modified: 2009-01-10 21:09 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description Carsten Lohrke (RETIRED) gentoo-dev 2009-01-10 00:21:51 UTC
testing long double (inline functions)
Failure: Test: expm1 (1) == M_El - 1.0
Result:
 is:          1.71828182845904523532e+00   0xd.bf0a8b14576953500000p-3
 should be:   1.71828182845904523543e+00   0xd.bf0a8b14576953600000p-3
 difference:  1.08420217248550443401e-19   0x8.00000000000000000000p-66
 ulp       :  1.0000
 max.ulp   :  0.0000
Maximal error of `expm1'
 is      : 1 ulp
 accepted: 0 ulp

Test suite completed:
  3588 test cases plus 2985 tests for exception flags executed.
  2 errors occurred.


The fix: http://sourceware.org/ml/libc-alpha/2008-07/msg00024.html
Comment 2 Carsten Lohrke (RETIRED) gentoo-dev 2009-01-10 20:41:49 UTC
According to a gentoo-dev mailing list email it is planed to mark glibc 2.7 stable, but you fixed this only for 2.9. There's also bug 216200, which remains an issue with glibc 2.7. If it is still planned to mark glibc 2.7 stable, please fix these issues for 2.7, too, otherwise drop a line and I start testing again with glibc 2.9.
Comment 3 SpanKY gentoo-dev 2009-01-10 21:09:52 UTC
plan was for glibc-2.8 to go stable, not glibc-2.7 ... dont know where on the mailing list you're referring to

regardless, if you care about tests, you should be focusing on latest ~arch for toolchain.  glibc-2.9 in this case.