Thread blocked indefinitely in a Mvar operation

During the stack upgrade process the following error occurred: A specified local key could not be updated from keyserver.

Trac metadata

Trac field	Value
Version	7.10.2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture

changed weight to 5

added Tbug Trac import labels

Attached file Error.gif (download).

The same error and in a typical stack setup.

It looks like the original error is here:

ghc.exe: fd:4: hGetContents: invalid argument (invalid byte sequence)

I can't fathom a guess as to what it's doing though. Could you perhaps try running that failing ghc command with -v?

added I/O manager Windows info needed labels

I think this is a encoding mismatch. Though without being able to reproduce it can't confirm. closing for now.

closed

added Pnormal label