Skip to content

GHCi crashes when I hold down control-c for a short time, and then hold down any key that would normally result in typing.

This is printed: (without the quotes at the beginning or end) " ghc.exe: panic! (the 'impossible' happened)

(GHC version 7.6.3 for i386-unknown-mingw32):

thread blocked indefinitely in an MVar operation

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

I am able to reproduce it by:

  1. starting ghci (with no arguments, or a file as an argument)
  2. holding down contol-c for 2 seconds
  3. holding down spacebar/a letter key for 2 seconds

The timing varies.

Trac metadata
Trac field Value
Version 7.6.3
Type Bug
TypeOfFailure OtherFailure
Priority low
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information