Simon Peyton-Jones simonpj at
Tue Jun 11 13:09:17 CEST 2013

Breakage on 32-bit Linux looks like this:

ghc-stage1: panic! (the 'impossible' happened)

  (GHC version 7.7.20130610 for i386-unknown-linux):

      getRegister(x86) I64[Sp]

Please report this as a GHC bug:

make[1]: *** [libraries/ghc-prim/dist-install/build/GHC/PrimopWrappers.o] Error 1

Breakage on 64-bit Linux started about 6 June, and looks like this:

   ../../libraries/array/tests             T2120 [exit code non-0] (profasm,profthreaded)

   ../../libraries/array/tests             array001 [exit code non-0] (profasm,profthreaded)

   ../../libraries/array/tests             largeArray [exit code non-0] (profasm,profthreaded)

   ../../libraries/base/tests              CPUTime001 [exit code non-0] (profasm,profthreaded)

plus a million more

From: Simon Peyton-Jones
Sent: 11 June 2013 12:04
To: Ian Lynagh (ian at
Cc: ghc-devs at
Subject: builders

Something we didn't discuss yesterday:

*         32-bit Linux build is broken (see nightly-build email that Geoff generates here at MSR)

*         are other buildbots working?

*         we are getting no snapshot builds

*         there are many test failures (with plain "make" in testsuite/) even on 64-bit Linux.
Can you investigate?
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