Biography heap profiling aborts

[drtomc@…]

My program, when compiled with -prof -auto-all and run with -hb -H500M -sstderr runs for a little while then dies with the following message:

Server: internal error: Invalid object in processHeapClosureForDead(): 27188
    (GHC version 6.6 for i386_apple_darwin)
    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
Abort trap

As this is commercial code, I can't easily provide a repro, though I am happy to perform experiments under direction to try to isolate the problem.

cheers, Tom

[igloo]

GHC also triggers this:

$ time ~/ghc/darcs/build/compiler/stage2/ghc-inplace -c J.hs +RTS -hb
ghc-6.7: internal error: Invalid object in processHeapClosureForDead(): 1359923842
    (GHC version 6.7 for x86_64_unknown_linux)
    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
zsh: abort      ~/ghc/darcs/build/compiler/stage2/ghc-inplace -c J.hs +RTS -hb
~/ghc/darcs/build/compiler/stage2/ghc-inplace -c J.hs +RTS -hb  2.38s user 0.08s system 98% cpu 2.498 total

We should find a small example to put in the testsuite.

See also #1615.

[simonmar]

mine

[simonmar]

Fixed:

Fri Aug 24 03:18:03 PDT 2007  Simon Marlow <simonmar@microsoft.com>
  * FIX #1519, crash in biographical profiling

I can now profile GHC with -hb again.