#885: ghci crashes on startup with AMD Athlon 64 X2 Dual and Data Execution
Prevention.
------------------------+---------------------------------------------------
Reporter: guest | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: GHCi | Version: 6.4.2
Severity: major | Keywords:
Os: Windows | Difficulty: Unknown
Architecture: x86 |
------------------------+---------------------------------------------------
ghci crashes just after startup, usually after displaying:
"Loading package base-1.0 ... linking ... done."
I get this message:
<<<
ghc.exe - Application Error
The instruction at "0x1169f890" referenced memory at "0x1169f890". The
memory could not be written
>>>
I've got a debugger that shows a dissassmbly. This is an extract (I can
show send more if you want, I'm guessing it's not very useful).
1169F884 add al,0
1169F886 add al,byte ptr [eax]
1169F888 add byte ptr [eax],al
1169F88A add byte ptr [eax],al
1169F88C adc dword ptr [eax],eax
1169F88E add byte ptr [eax],al
1169F890 mov esi,dword ptr [ebp] <-- break point here
1169F893 add ebp,4
1169F896 jmp dword ptr [ebp]
My computer is an AMD Athlon 64 X2 Dual, Core Processor 4400+, 2.22 GHz,
2.00 Gb RAM. If I turn off Data Execution Prevention for the ghci process
(under System Properties -> Advanced -> Performance -> Settings -> Data
Execution Prevention) , ghci continues as normal and works.
I have noticed sometimes that even with the Data Execution Prevention
enabled, it doesn't crash. It seems to go in phases. I think I've seen
the same thing with ghc, as well as ghci, I can test more if required.
My version of ghc is 6.4.2, from the Windows .msi installer,
http://haskell.org/ghc/download_ghc_642.html#windows
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/885>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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