With HEAD from today, I get the following GHC panic when building
stage2 in profiling way (BuildFlavour = devel2):
<<ghc: 31163276 bytes, 7 GCs, 2801664/5439488 avg/max bytes residency
(2 samples), 64M in use, 0.00 INIT (0.00 elapsed), 0.06 MUT (0.14
elapsed), 0.05 GC (0.07 elapsed) :ghc>>
/Users/nominolo/code/ghc/ng-api/ghc/stage1-inplace/ghc
-DGHCI_TABLES_NEXT_TO_CODE -DSTAGE=2 -package-name ghc-6.11.20081205
-hide-all-packages -no-user-package-conf -i -idist-stage2/build
-inativeGen -ibasicTypes -icmm -icodeGen -icoreSyn -icprAnalysis
-ideSugar -ighci -ihsSyn -iiface -imain -iparser -iprelude -iprofiling
-irename -isimplCore -isimplStg -ispecialise -istgSyn -istranal
-itypecheck -itypes -iutils -ivectorise -idist-stage2/build/autogen
-Idist-stage2/build/autogen -Idist-stage2/build
-I../libffi/build/include -Istage2plus -I../libraries/base/cbits
-I../libraries/base/include -I. -Iparser -Iutils -optP-DUSE_EDITLINE
-optP-DGHCI -optP-include
-optPdist-stage2/build/autogen/cabal_macros.h -odir dist-stage2/build
-hidir dist-stage2/build -stubdir dist-stage2/build -package
Cabal-1.5.5 -package array-0.2.0.0 -package base-4.0.0.0 -package
bytestring-0.9.1.4 -package containers-0.2.0.0 -package
directory-1.0.0.2 -package editline-0.2.1.0 -package filepath-1.1.0.1
-package haskell98-1.0.1.0 -package hpc-0.5.0.2 -package
old-time-1.0.0.1 -package process-1.0.1.1 -package
template-haskell-2.3.0.0 -package unix-2.3.1.0 -O -Wall
-fno-warn-name-shadowing -fno-warn-orphans -XCPP -XMagicHash
-XUnboxedTuples -XPatternGuards -XForeignFunctionInterface
-XEmptyDataDecls -XTypeSynonymInstances -XMultiParamTypeClasses
-XFlexibleInstances -XRank2Types -XScopedTypeVariables
-XDeriveDataTypeable -prof -hisuf p_hi -hcsuf p_hc -osuf p_o
-idist-stage2/build -H64m -O -fasm -W -fno-warn-unused-matches
-fwarn-unused-imports -Rghc-timing -Rghc-timing -O0 -DDEBUG -c
iface/BinIface.hs -o dist-stage2/build/BinIface.p_o -ohi
dist-stage2/build/BinIface.p_hi
ghc: panic! (the 'impossible' happened)
(GHC version 6.11.20081205 for i386-apple-darwin):
CoreToStg.myCollectArgs
(__scc {binzuusages ghc-6.11.20081205:BinIface !}
ghc-6.11.20081205:Binary.a74{v rLR} [gid]
@ [ghc-6.11.20081205:HscTypes.Usage{tc rbj}]
$dBinary37{v r7qF} [gid]
bh{v s9jS} [lid])
eta_s9kP{v} [lid]
I guess it's quite possible that this is caused by one of Simon's
patches from Friday.
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