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memory fault(core dump)

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Operating Systems HP-UX memory fault(core dump)
# 1  
Old 12-02-2008
memory fault(core dump)
i am getting memory fault (core dump) in a C program

i want to know which statement execution caused it.
i tried following things

$ gdb generalised_tapinread_mod
HP gdb 5.4.0 for HP Itanium (32 or 64 bit) and target HP-UX 11.2x.
Copyright 1986 - 2001 Free Software Foundation, Inc.
Hewlett-Packard Wildebeest 5.4.0 (based on GDB) is covered by the
GNU General Public License. Type "show copying" to see the conditions to
change it and/or distribute copies. Type "show warranty" for warranty/support.
..
(gdb) r /TRAP_TR/telcel_pr/RAW/BP/POPROMTAPOUT/SOURCE/CDMEXTLUSA2702258 3.11_selectedfields generalised_config.
Starting program: /TRAP_TR/telcel_pr/EXE/generalised_tapinread_mod /TRAP_TR/telcel_pr/RAW/BP/POPROMTAPOUT/SOURC
Process Start Time - Mon Dec 1 23:10:50 2008

Program received signal SIGSEGV, Segmentation fault
si_code: 2 - SEGV_ACCERR - Invalid Permissions for object.
0x4006350:0 in parseBinaryFile () at generalised_tapinread_mod.c:646
646 cur_add->nodeProcessed = YES;

(gdb) print cur_add->nodeProcessed
Cannot access memory at address 0x325
(gdb) print cur_add
$1 = (struct node *) 0x1

but the line no "646" doesn't seem to be problematic to me.....

can someone tell me how to debug the error in my code.

thanks in advance
Last edited by junaid.nehvi; 12-02-2008 at 06:16 AM..
# 2  
Old 12-02-2008
Try clearing cache- sync; echo 3 > /proc/sys/vm/drop_caches
# 3  
Old 12-04-2008
techlinux
Try clearing cache- sync; echo 3 > /proc/sys/vm/drop_caches
******************************************************
i tried it but without any success....
memory fault still continues to come.
But same program doesn't give any error on GNU/Linux wit same inputs as given for the one on HP-UX
can't understant what thr problem really is???
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