Ticket #3915 (new bug)

Opened 2 years ago

Last modified 4 months ago

GHC panic; possibly related to mutually recursive modules

Reported by: bob Owned by:
Priority: low Milestone: 7.4.1
Component: Compiler Version: 6.12.1
Keywords: GHC panic mutually recursive modules Cc:
Operating System: Linux Architecture: x86
Type of failure: Compile-time crash Difficulty:
Test Case: Blocked By:
Blocking: Related Tickets:

Description

GHC panics when an instance block is uncommented in State.hs in  http://patch-tag.com/r/bob/Domination. The attached patch uncomments it. It might be related to mutually recursive modules.

Attachments

panic.diff Download (0.7 KB) - added by bob 2 years ago.
Uncomment "instance Default GuiState?" block

Change History

Changed 2 years ago by bob

Uncomment "instance Default GuiState?" block

Changed 22 months ago by igloo

  • milestone set to 6.12.3

Thanks for the report. Can you please say what command you are running, and paste the error you get?

Also, if you are able to make a testcase that doesn't depend on other packages then that would make this easier to investigate.

Changed 20 months ago by igloo

  • priority changed from normal to low
  • milestone changed from 6.12.3 to 6.14.1

Changed 14 months ago by igloo

  • milestone changed from 7.0.1 to 7.0.2

Changed 11 months ago by igloo

  • milestone changed from 7.0.2 to 7.2.1

Changed 11 months ago by simonmar

  • failure changed from GHC doesn't work at all to Compile-time crash

Changed 4 months ago by igloo

  • milestone changed from 7.2.1 to 7.4.1
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