Ticket #3750 (closed bug: fixed)

Opened 3 years ago

Last modified 3 years ago

nameModule $wlookup_nm

Reported by: simonmar Owned by:
Priority: high Milestone: 7.0.1
Component: Compiler Version: 6.13
Keywords: Cc:
Operating System: Unknown/Multiple Architecture: Unknown/Multiple
Type of failure: Compile-time crash Difficulty:
Test Case: Blocked By:
Blocking: Related Tickets:

Description

This recently started happening in HEAD. The last build in which it did not happen was on 1 Dec 2009. The program is nofib/real/veritas: 

==nofib== veritas: time to compile Parse follows...
/64playpen/simonmar/nightly/HEAD-cam-04-unx/x86_64-unknown-linux/inplace/bin/ghc-stage2 -H32m -O -O -Rghc-timing -H32m -hisuf hi -c Parse.lhs -o Parse.o
ghc-stage2: panic! (the 'impossible' happened)
  (GHC version 6.13.20091213 for x86_64-unknown-linux):
	nameModule $wlookup_nm{v r2Mh}

Change History

Changed 3 years ago by simonpj

  • status changed from new to closed
  • resolution set to fixed

I believe this is OK now. The problem was something to do with a worker was getting substituted into a wrapper. But it seems to have gone away, and I'm not 100% sure why it ever happened. So keep an eye out!

Simon

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