#5111: linux-powerpc : segfault in stage2 compiler
------------------------+---------------------------------------------------
Reporter: erikd | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.1 | Keywords:
Testcase: | Blockedby:
Os: Linux | Blocking:
Architecture: powerpc | Failure: Installing GHC failed
------------------------+---------------------------------------------------
After the patch to fix #4999, the compile gets a bit further and now
crashes at:
{{{
"inplace/bin/ghc-stage2" -H32m -O -package-name vector-0.7.0.1 -hide-
all-packages -i -ilibraries/vector/. -ilibraries/vector/dist-install/build
-ilibraries/vector/dist-install/build/autogen -Ilibraries/vector/dist-
install/build -Ilibraries/vector/dist-install/build/autogen
-Ilibraries/vector/include -Ilibraries/vector/internal -optP-
DVECTOR_BOUNDS_CHECKS -optP-include -optPlibraries/vector/dist-
install/build/autogen/cabal_macros.h -package base-4.3.1.0 -package
primitive-0.3.1 -O2 -XHaskell98 -XCPP -XDeriveDataTypeable -O2 -XGenerics
-no-user-package-conf -rtsopts -odir libraries/vector/dist-
install/build -hidir libraries/vector/dist-install/build -stubdir
libraries/vector/dist-install/build -hisuf hi -osuf o -hcsuf hc -c
libraries/vector/./Data/Vector/Fusion/Stream/Monadic.hs -o
libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.o
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package primitive-0.3.1 ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
Segmentation fault
make[1]: *** [libraries/vector/dist-
install/build/Data/Vector/Fusion/Stream/Monadic.o] Error 139
make: *** [all] Error 2
}}}
Compiling with debug on and running under gdb results in:
{{{
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package primitive-0.3.1 ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
Program received signal SIGSEGV, Segmentation fault.
0xf19ea004 in ?? ()
(gdb) bt
#0 0xf19ea004 in ?? ()
#1 0x11a30f58 in schedule (initialCapability=0x93fb0070, task=0x3dc0f1de)
at rts/Schedule.c:457
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
}}}
so this is crashing in haskell code, not the RTS.
Tracing this using putStr and friends I've tracked the bug to
TcSplice.runMeta. It seems to crash when a thunk is evaluated just as that
function returns. I'm still working on tracing back from there.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5111>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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