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Simon Marlow authored
This program contains an expression of the form let x = snd (_, snd (_, snd (_, x))) (probably not explicitly, but that's what appears in the heap at runtime). Obviously the program should deadlock if it ever enters this thing, but apparently the test program in #2327 never does. The GC tries to evaluate the snd closures, and gets confused due to the loop. In particular the earlier fix for #1038 was to blame.
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