In ghci, loadObj fails after :cd for compiled module

I am using ghc 6.10.1 from MacPorts, upgraded recently from 6.8.?.

To cause the bug, enter: mkdir bug && pushd bug && echo 'module Bug where number = 12' >Bug.hs && ghc -c Bug.hs && popd && ghci

Inside ghci, do

:cd bug
:l Bug
number

This produces:

GHCi, version 6.10.1: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer ... linking ... done.
Loading package base ... linking ... done.
Prelude> :cd bug
Prelude> :l Bug
Ok, modules loaded: Bug.
Prelude Bug> number
ghc: panic! (the 'impossible' happened)
  (GHC version 6.10.1 for i386-apple-darwin):
	loadObj: failed

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

Trac metadata

Trac field	Value
Version	6.10.1
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

mentioned in commit 7f1db085

changed milestone to %6.10.2

assigned to @simonmar

Fixed:

Tue Jan 27 04:16:48 PST 2009  Simon Marlow <marlowsd@gmail.com>
  * #2973: we should virtualise the CWD inside the GHC API, not in the client

assigned to @trac-igloo and unassigned @simonmar

Trac metadata

Trac field	Value
Type	Bug → MergeReq

added backport label and removed Tbug label

closed

Merged

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedFixed

mentioned in issue #3045 (closed)

mentioned in issue #3098 (closed)

mentioned in issue #3264 (closed)

added Pnormal label

mentioned in commit b4e514d8

mentioned in commit 0868da09

mentioned in commit 5860d257

mentioned in commit f2a9d55d

mentioned in commit a44430b8

mentioned in commit 19c40764

mentioned in commit c74888eb

mentioned in commit 89f1a624

mentioned in commit b4fe0850