ghc enters a loop while building 7.6.3 for powerpc64 platform.

It enters a loop around 3414s] "/home/abuild/rpmbuild/BUILD/ghc-boot/bin/ghc" -M -dep-makefile compiler/stage1/build/.depend-v.haskell.tmp -include-pkg-deps -H32m -O -package-db libraries/bootstrapping.conf -package-name ghc-7.6.3 -hide-all-packages -i -icompiler/basicTypes -icompiler/cmm -icompiler/codeGen -icompiler/coreSyn -icompiler/deSugar -icompiler/ghci -icompiler/hsSyn -icompiler/iface -icompiler/llvmGen -icompiler/main -icompiler/nativeGen -icompiler/parser -icompiler/prelude -icompiler/profiling -icompiler/rename -icompiler/simplCore -icompiler/simplStg -icompiler/specialise -icompiler/stgSyn -icompiler/stranal -icompiler/typecheck -icompiler/types -icompiler/utils -icompiler/vectorise -icompiler/stage1/build -icompiler/stage1 ...

building 7.6.1 didn't had such problem

strace shows: futex(0x1002420f97c, FUTEX_WAIT_PRIVATE, 1137, NULL) = ? ERESTARTSYS (To be restarted) --- SIGVTALRM (Virtual timer expired) @ 0 (0) --- rt_sigreturn(0x1a) = -1100117768572 futex(0x1002420f97c, FUTEX_WAIT_PRIVATE, 1137, NULL) = ? ERESTARTSYS (To be restarted) --- SIGVTALRM (Virtual timer expired) @ 0 (0) --- rt_sigreturn(0x1a) = -1100117768572 futex(0x1002420f97c, FUTEX_WAIT_PRIVATE, 1137, NULL) = ? ERESTARTSYS (To be restarted) --- SIGVTALRM (Virtual timer expired) @ 0 (0) --- rt_sigreturn(0x1a) = -1100117768572 futex(0x1002420f97c, FUTEX_WAIT_PRIVATE, 1137, NULL) = ? ERESTARTSYS (To be restarted) --- SIGVTALRM (Virtual timer expired) @ 0 (0) --- rt_sigreturn(0x1a) = -1100117768572 futex(0x1002420f97c, FUTEX_WAIT_PRIVATE, 1137, NULL) = ? ERESTARTSYS (To be restarted) --- SIGVTALRM (Virtual timer expired) @ 0 (0) --- rt_sigreturn(0x1a) = -1100117768572

Trac metadata

Trac field	Value
Version	7.6.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
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