Ticket #2475 (closed bug: fixed)

Opened 5 years ago

Last modified 5 years ago

debugger gives "Can't unify" when stopped at an exception

Reported by: igloo Owned by: mnislaih
Priority: normal Milestone: 6.10.2
Component: GHCi Version: 6.8.3
Keywords: Cc: mnislaih@…
Operating System: Unknown/Multiple Architecture: Unknown/Multiple
Type of failure: Difficulty: Unknown
Test Case: break011, break017, break024 Blocked By:
Blocking: Related Tickets:

Description

Presumably due to exceptions now using existential types, the GHCi debugger now gives: 

ghc: panic! (the 'impossible' happened)
  (GHC version 6.9.20080731 for x86_64-unknown-linux):
   Can't unify

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

when it stops at an exception. See break011 and break024 for testcases.

Change History

Changed 5 years ago by mnislaih

  • cc mnislaih@… added
  • owner set to mnislaih
  • status changed from new to assigned

Thanks, I'll give it a look soon

Changed 5 years ago by guest

  • testcase changed from break011, break024 to break011, break017, break024

Also break017

Igloo

Changed 5 years ago by simonmar

  • architecture changed from Unknown to Unknown/Multiple

Changed 5 years ago by simonmar

  • os changed from Unknown to Unknown/Multiple

Changed 5 years ago by igloo

  • milestone changed from 6.10.1 to 6.10.2

Changed 5 years ago by mnislaih

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

I forgot to close this ticket. Fixed by the patch 

Thu Sep 18 05:21:33 PDT 2008  pepe
 * Fix a couple of issues with :print

Changed 5 years ago by igloo

This was merged into the 6.10 branch too.

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