strace breaks System.Process(?)

See http://markmail.org/message/hbf5pf5puvxnxmxo#query:strace%20greenrd%20ghc+page:1+mid:nfzfholb5gbrsyqm+state:results

Still an issue in 6.12.1.

Trac metadata

Trac field	Value
Version	6.12.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	libraries/base
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture	x86