[Gc] segfault on arm

Christian Thalinger twisti at complang.tuwien.ac.at
Wed Jul 27 07:29:35 PDT 2005


Hi!

We are currently porting CACAO to the arm architecture and it seems
there is problem with the gc. Simply running the gc test results in:

twisti at arm-linux:~/cacao/boehm-gc/gc6.5$ ./config.guess 
armv4tl-unknown-linux-gnu
twisti at arm-linux:~/cacao/boehm-gc/gc6.5$ LD_LIBRARY_PATH=.libs/ gdb
.libs/gctest 
GNU gdb 6.3-debian
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "arm-linux"...Using host libthread_db library
"/lib/libthread_db.so.1".

(gdb) r
Starting program: /nfs/a5/twisti/cacao/boehm-gc/gc6.5/.libs/gctest 

Program received signal SIGSEGV, Segmentation fault.
GC_mark_from (mark_stack_top=0x2a0e0, mark_stack=0x2a0a8,
mark_stack_limit=0x320a8) at mark.c:759
759               deferred = *limit;
(gdb) bt
#0  GC_mark_from (mark_stack_top=0x2a0e0, mark_stack=0x2a0a8,
mark_stack_limit=0x320a8) at mark.c:759
#1  0x4002bbb8 in GC_mark_some (cold_gc_frame=0xbefffa5c ",C\001") at
mark.c:326
#2  0x400258dc in GC_stopped_mark (stop_func=0x40024ee4
<GC_never_stop_func>) at alloc.c:531
#3  0x400254e0 in GC_try_to_collect_inner (stop_func=0x40024ee4
<GC_never_stop_func>) at alloc.c:378
#4  0x4002ebac in GC_init_inner () at misc.c:782
#5  0x4002aa20 in GC_generic_malloc_inner (lb=7, k=1) at malloc.c:125
#6  0x4002ab7c in GC_generic_malloc (lb=7, k=1) at malloc.c:192
#7  0x4002ad9c in GC_malloc (lb=52) at malloc.c:311
#8  0x0000a220 in run_one_test () at tests/test.c:1218
#9  0x0000ab78 in main () at tests/test.c:1521
(gdb) 

The same happens with gij-3.4 (i have no newer version handy). Any idea?

TWISTI


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