Stack overflow with Data.Binary

[Christian Maeder]

Grzegorz schrieb:
> Christian Maeder <maeder <at> tzi.de> writes:
>> I've tried your code with ghc-6.6.1 under x86 linux with binary-0.3:
>> http://hackage.haskell.org/cgi-bin/hackage-scripts/package/binary-0.3
>>
>> It does terminate for me with and without profiling and/or optimization,

It does _not_ terminate!!! (oops)

>> when I pass in the source file itself as input:
>>
>>   $ ./foo  < foo.hs

[..]

> I don't know what's supposed to happen if you pass it 
> invalid input (such as the source file); for me it it 
> seems to just eat up all available memory.

Yes, same on my machine.

> However, I observed the stack overflow when actually 
> passing in *valid* input,that is a tuple of two IntMaps 
> previously  serialized using Binary. If that
> helps I copied the input file I used here: http://computing.dcu.ie/~gchrupala/okok

I can confirm your observation with this file, too.

C.

$ ghc --make -O2 foo.hs
[1 of 1] Compiling Main             ( foo.hs, foo.o )
Linking foo ...
$ ./foo < okok
58386
$ ghc --make -O2 -prof -auto-all foo.hs
[1 of 1] Compiling Main             ( foo.hs, foo.o )
Linking foo ...
$ ./foo < okok
Stack space overflow: current size 8388608 bytes.
Use `+RTS -Ksize' to increase it.