#5003: test 4038 (ghci) fails on OS X 64 bit.
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Reporter: gwright | Owner: gwright
Type: bug | Status: new
Priority: high | Milestone: 7.2.1
Component: GHCi | Version: 7.0.2
Keywords: | Testcase:
Blockedby: | Difficulty:
Os: Unknown/Multiple | Blocking:
Architecture: x86_64 (amd64) | Failure: Runtime crash
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Changes (by gwright):
* os: MacOS X => Unknown/Multiple
Comment:
I added the print statements as described above by michalt, and on OS X 64
bit I consistently get a crash with `ghci` at the same point:
{{{
first: 695
second: 695
first: 694
second: 694
first: 693
second: 693
Bus error
gwright-macbook>
}}}
The error always seems to happen just after `second` is 693.
Has anyone observed this error on a 32 bit platform? If not, the
underlying bug is probably similar to #4970, in which a 32 bit value was
copied to the lower half of a 64 bit location, without the upper half
being zeroed or sign extended. Unfortunately, the original error may
happen some time before the ultimate crash.
I guess the good news is that this doesn't seem to be an OS X linker bug.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5003#comment:12>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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