Hi Ian,
I'm building ghc-6.6.20070314 using the unregisterized ghc-6.4.2.
(BTW, the unregisterized 6.4.2 seems quite reliable. I was able to
build happy-1.15 and alex-2.0.1 without any problem.)
I configured 6.6.20070314 for debugging by putting
GhcUnregisterised=YES
GhcWithNativeCodeGen=NO
GhcWithInterpreter=NO
SplitObjs=NO
GhcWithSMP=NO
SRC_HC_OPTS+=-debug -L/usr/local/lib
GhcRTSWays=debug
GhcRtsHcOpts+=-optc-DDEBUG
GhcRtsCcOpts+=-optc-g
EXTRA_LD_OPTS=-L/usr/local/lib -lbfd -liberty
in mk/build.mk. With debugging turned on, the new 6.6
no longer hangs when compiling rts/Linker.c, rather the new
6.6 ghc-inplace fails compiling the first file it tries, Adjustor.c.
I was running "top -u" in another window and when the build
failed the memory used went unprintably high (i.e., "top" couldn't
print it, nor could you print what I said when I noticed this).
I was able to re-run the failed compilation under gdb. I added
"-v" to ghc's command line. The big slowdown seemed to occur while
ghc-inplace was generating the command line for the c compiler.
This is when I interrupted it. From gdb:
(gdb) run -B/tmp/ghc -optc-O -optc-Wall -optc-W -optc-Wstrict-
prototypes -optc-Wmissing-prototypes -optc-Wmissing-declarations -
optc-Winline -optc-Waggregate-return -optc-Wbad-function-cast -optc-
I../includes -optc-I. -optc-Iparallel -optc-DCOMPILING_RTS -optc-
fomit-frame-pointer -optc-optc-g -optc-DNOSMP -optc-I/usr/local/
include -optc-fno-strict-aliasing -H16m -O -debug -L/usr/local/lib -
optc-O2 -optc-DDEBUG -optc-DNOSMP -static -I/usr/local/include -I. -
#include HCIncludes.h -fvia-C -dcmm-lint -v -c Adjustor.c -o
Adjustor.o
Starting program: /tmp/ghc/compiler/stage1/ghc-6.6.20070314 -B/tmp/
ghc -optc-O -optc-Wall -optc-W -optc-Wstrict-prototypes -optc-
Wmissing-prototypes -optc-Wmissing-declarations -optc-Winline -optc-
Waggregate-return -optc-Wbad-function-cast -optc-I../includes -optc-
I. -optc-Iparallel -optc-DCOMPILING_RTS -optc-fomit-frame-pointer -
optc-optc-g -optc-DNOSMP -optc-I/usr/local/include -optc-fno-strict-
aliasing -H16m -O -debug -L/usr/local/lib -optc-O2 -optc-DDEBUG -optc-
DNOSMP -static -I/usr/local/include -I. -#include HCIncludes.h -fvia-
C -dcmm-lint -v -c Adjustor.c -o Adjustor.o
Glasgow Haskell Compiler, Version 6.6.20070314, for Haskell 98,
compiled by GHC version 6.4.2
Using package config file: /tmp/ghc/driver/package.conf.inplace
wired-in package base not found.
wired-in package rts mapped to rts-1.0
wired-in package haskell98 not found.
wired-in package template-haskell not found.
Hsc static flags: -funregisterised -static -static
Created temporary directory: /tmp/ghc27577_0
*** C Compiler:
gcc -x c Adjustor.c -o /tmp/ghc27577_0/ghc27577_0.s -v -S -Wimplicit -
O -D__GLASGOW_HASKELL__=606 -DNO_REGS -DUSE_MINIINTERPRETER -O -Wall -
W -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -
Winline -Waggregate-return -Wbad-function-cast -I../includes -I. -
Iparallel -DCOMPILING_RTS -fomit-frame-pointer -optc-g -DNOSMP -I/usr/
local/include -fno-strict-aliasing -O2 -DDEBUG -DNOSMP -I /usr/local/
include -I . -I /tmp/ghc/includes -fwrapv
Using built-in specs.
Configured with: FreeBSD/amd64 system compiler
Thread model: posix
gcc version 3.4.6 [FreeBSD] 20060305
/usr/libexec/cc1 -quiet -v -I../includes -I. -^C
Program received signal SIGINT, Interrupt.
0x00000000015b56f3 in findMBlockMap (p=0x3a242700000) at MBlock.c:68
68 for( i = 0; i < mblock_map_count; i++ )
(gdb) bt
#0 0x00000000015b56f3 in findMBlockMap (p=0x3a242700000) at MBlock.c:68
#1 0x00000000015b574b in markHeapAlloced (p=0x3a242700000) at
MBlock.c:98
#2 0x00000000015b59df in getMBlocks (n=262145) at MBlock.c:280
#3 0x00000000015ac617 in allocMegaGroup (n=262145) at BlockAlloc.c:174
#4 0x00000000015ac3e0 in allocGroup (n=67108865) at BlockAlloc.c:72
#5 0x000000000159e24a in allocate (n=34359738372) at Storage.c:504
#6 0x000000000159e439 in allocatePinned (n=34359738372) at Storage.c:
593
#7 0x00000000015a1376 in newPinnedByteArrayzh_fast ()
#8 0x000000000159d3e2 in StgRun (f=0x15a1330