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)
1. holding down contol-c for 2 seconds
1. holding down spacebar/a letter key for 2 seconds
The timing varies.
<details><summary>Trac metadata</summary>
| 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 | |
</details>
<!-- {"blocked_by":[],"summary":"GHCi crashes when I hold down control-c for a short time, and then hold down any key that would normally result in typing.","status":"New","operating_system":"","component":"Compiler","related":[],"milestone":"","resolution":"Unresolved","owner":{"tag":"Unowned"},"version":"7.6.3","keywords":["control-c","crash,"],"differentials":[],"test_case":"","architecture":"","cc":[""],"type":"Bug","description":"This is printed: (without the quotes at the beginning or end)\r\n\"\r\nghc.exe: panic! (the 'impossible' happened)\r\n (GHC version 7.6.3 for i386-unknown-mingw32):\r\n thread blocked indefinitely in an MVar operation\r\n\r\nPlease report this as a GHC bug: http://www.haskell.org/ghc/reportabug\r\n\"\r\n\r\nI am able to reproduce it by:\r\n1. starting ghci (with no arguments, or a file as an argument)\r\n2. holding down contol-c for 2 seconds\r\n3. holding down spacebar/a letter key for 2 seconds\r\nThe timing varies.","type_of_failure":"OtherFailure","blocking":[]} -->
issue