segmentation fault in t_splay() calling Tcl_Alloc()

From: Anthony Davis (adavis_at_addpower.com)
Date: 10/06/03 

Date: 6 Oct 2003 11:19:25 -0700

Let me first start this message by stating that I believe this to be
an error in gcc, but I wanted to see if anyone else may have seen this
and could offer their advice:
On my system (SCO UNIX 5.0.6 ) Tcl_Alloc maps to malloc and I am
getting a segmentation fault in the libc function t_splay() after
calling Tcl_Alloc() in my application.
GDB output to follow:

(gdb) run
Starting program: /var/opt/K/SCO/Unix/5.0.6Ga/usr/local/src/pcl0.0.1/bin/pclsh
% source test.pcl
Opening file: om1reg.soa
records read: 0
records read: 1

Program received signal SIGSEGV, Segmentation fault.
0x80023aac in t_splay () from /usr/lib/libc.so.1
(gdb) where
#0 0x80023aac in t_splay () from /usr/lib/libc.so.1
#1 0x8002397f in t_delete () from /usr/lib/libc.so.1
#2 0x800231d7 in _real_malloc () from /usr/lib/libc.so.1
#3 0x80023019 in malloc () from /usr/lib/libc.so.1
#4 0x80b952d in TclpAlloc ()
#5 0x8059ac8 in Tcl_Alloc ()
#6 0x809f448 in Tcl_NewStringObj ()
#7 0x80504f6 in Pcl_ReadObjCmd (clientData=0x81200a8,
interp=0x8109114,objc=2, objv=0x810b694) at generic/Pcl_Main.c:340
#8 0x8055efa in TclEvalObjvInternal ()
#9 0x807489a in TclExecuteByteCode ()
#10 0x8073dc0 in TclCompEvalObj ()
#11 0x8056c5e in Tcl_EvalObjEx ()
#12 0x805a6e5 in Tcl_CatchObjCmd ()
#13 0x8055efa in TclEvalObjvInternal ()
#14 0x807489a in TclExecuteByteCode ()
#15 0x8073dc0 in TclCompEvalObj ()
#16 0x8056c5e in Tcl_EvalObjEx ()
#17 0x805c18e in Tcl_ForObjCmd ()
#18 0x8055efa in TclEvalObjvInternal ()
#19 0x805677a in Tcl_EvalEx ()
#20 0x8089d08 in Tcl_FSEvalFile ()
#21 0x806197a in Tcl_SourceObjCmd ()
#22 0x8055efa in TclEvalObjvInternal ()
#23 0x807489a in TclExecuteByteCode ()
#24 0x8073dc0 in TclCompEvalObj ()
#25 0x8056c5e in Tcl_EvalObjEx ()
#26 0x80baa6e in Tcl_RecordAndEvalObj ()
#27 0x808f60b in Tcl_Main ()
#28 0x804b113 in main (argc=1, argv=0x8047cf0) at
generic/pclAppInit.c:99
#29 0x804b00b in _start ()

Any help is greatly appreciated.
Anthony

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