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  • #16350

Closed
Open
Opened Feb 21, 2019 by Ryan Scott@RyanGlScottMaintainer

Nondeterministic T5559 failures on CI

The T5559 test case occasionally fails on CI, forcing me to restart builds to get a green build status. Here is one example from a validate-x86_64-linux-fedora27 run:

"gs" -dNODISPLAY -dBATCH -dQUIET -dNOPAUSE "profiling/should_run/T5559.run/T5559.ps"
hp2ps output for T5559is not valid PostScript
*** unexpected failure for T5559(profasm)

<elided>

SUMMARY for test run started at Thu Feb 21 00:32:08 2019 UTC
 0:44:16 spent to go through
    6839 total tests, which gave rise to
   26523 test cases, of which
   19210 were skipped

      42 had missing libraries
    7178 expected passes
      92 expected failures

       0 caused framework failures
       0 caused framework warnings
       0 unexpected passes
       1 unexpected failures
       0 unexpected stat failures

Unexpected failures:
   profiling/should_run/T5559.run  T5559 [bad heap profile] (profasm)

Aside from the nondeterministic test failure, this also reveals a minor bug: it prints T5559is not valid PostScript, which should probably be T5559 is not valid PostScript instead.

Trac metadata
Trac field Value
Version 8.9
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
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Architecture
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Reference: ghc/ghc#16350