I asked upstream to have a look at this. Do you have SElinux enabled? They said that this could be related to that.
Also, could you run strace -f ghci and get a gdb stack trace of the bug? -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org