Interrupted program cannot produce biographical heap profile

If I interrupt program running with "+RTS -p -hb" option, the program aborts with message below and I could only get empty heap profile.

Minimal case is below:

module Main where
main :: IO ()
main = print $ sum [1..10000000000]

I compiled this code with "-prof -rtsopts" options, ran the program and then interrupt after several seconds.

$ ghc http-biographic-profile.hs -prof -rtsopts
[1 of 1] Compiling Main             ( http-biographic-profile.hs, http-biographic-profile.o )
Linking biographic-profile ...
$ ./http-biographic-profile +RTS -hb -p        
^Chttp-biographic-profile: internal error: Invalid object in processHeapClosureForDead(): 58
    (GHC version 7.0.4 for x86_64_apple_darwin)
    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
zsh: abort      ./http-biographic-profile +RTS -hb -p

Empty heap profile generated is below:

JOB "biographic-profile +RTS -hb -p"
DATE "Thu May 17 17:12 2012"
SAMPLE_UNIT "seconds"
VALUE_UNIT "bytes"
BEGIN_SAMPLE 0.00
END_SAMPLE 0.00

I reproduce this behaviour in environments below:

• GHC-7.0.4 (x86_64_apple_darwin, OS X 10.6.8, distributed with haskell-platform 2011.3.0.0)
• GHC-7.4.1 (x86_64_apple_darwin, OS X 10.6.8, installed from tarball, sandboxed with virthualenv)

I think "-hb" show work even when program interrupted, because "-hy", "-hd", "-hr" and so on works in such a situation. Is this a intended behaviour?

Trac metadata

Trac field	Value
Version	7.4.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Profiling
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