[GHC] #15382: heapprof001 segfaults in prof_hc_hb way on i386

[GHC]

#15382: heapprof001 segfaults in prof_hc_hb way on i386
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        Reporter:  bgamari           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.4.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:  x86
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Description changed by bgamari:

Old description:

> I am seeing the `heapprof001` testcase segmentation fault in the
> `prof_hc_hb` testsuite way on i386. For instance,
> https://circleci.com/gh/ghc/ghc/7104.

New description:

 I am seeing the `heapprof001` testcase segmentation fault in the
 `prof_hc_hb` testsuite way on i386. For instance,
 https://circleci.com/gh/ghc/ghc/7104:

 {{{
 Wrong exit code for heapprof001(prof_hc_hb)(expected 0 , actual 139 )
 Stdout ( heapprof001 ):
 a <=
 a <=
 a <=
 a <=
 a <=
 a <=
 a <=
 Stderr ( heapprof001 ):
 Segmentation fault
 *** unexpected failure for heapprof001(prof_hc_hb)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15382#comment:1>
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