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internal error: stg_ap_ppp_ret

I'm running a server application using Haskell, and during a stress test with repeated connections coming from multiple clients, I got the following exception:

internal error: stg_ap_ppp_ret

I'll attempt to repeat and get some debug info.

Trac metadata
Trac field Value
Version 6.4
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Runtime System
Test case
Differential revisions
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Blocking
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Operating system
Architecture
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