Debugging a crash

[Boris Samorodov]

Hi All,

I get an application crashing. Build some libs with debug symbols.
Here is the gdb log:
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Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 809806400 (LWP 101133/photoprint)]
strtol_l (nptr=0x0, endptr=0x0, base=10, locale=<value optimized out>)
at /usr/src/lib/libc/stdlib/strtol.c:73
73              } while (isspace_l((unsigned char)c, locale));
Current language:  auto; currently minimal
(gdb) bt
#0  strtol_l (nptr=0x0, endptr=0x0, base=10, locale=<value optimized
out>) at /usr/src/lib/libc/stdlib/strtol.c:73
#1  0x00000008017d951c in ps_parameters (v=0x809d0dc00, name=0x80996c120
"JCLBOXHOLDTYPE", description=0x7fffffffd0a8) at print-ps.c:380
#2  0x00000008017996df in stp_describe_parameter (v=0x809d0dc00,
name=0x80996c120 "JCLBOXHOLDTYPE", description=0x7fffffffd0a8) at
print-vars.c:1687
#3  0x000000000046cfd2 in ?? ()
#4  0x00000000004627a1 in ?? ()
#5  0x0000000000461da4 in ?? ()
#6  0x00000000004657fe in ?? ()
#7  0x0000000000422863 in ?? ()
#8  0x0000000000421f45 in ?? ()
#9  0x000000000041054f in ?? ()
#10 0x0000000800719000 in ?? ()
#11 0x0000000000000000 in ?? ()
(gdb) fr 0
#0  strtol_l (nptr=0x0, endptr=0x0, base=10, locale=<value optimized
out>) at /usr/src/lib/libc/stdlib/strtol.c:73
73              } while (isspace_l((unsigned char)c, locale));
(gdb) fr 1
#1  0x00000008017d951c in ps_parameters (v=0x809d0dc00, name=0x80996c120
"JCLBOXHOLDTYPE", description=0x7fffffffd0a8) at print-ps.c:380
380       num_choices = atoi(stp_mxmlElementGetAttr(option, "num_choices"));
(gdb) fr 2
#2  0x00000008017996df in stp_describe_parameter (v=0x809d0dc00,
name=0x80996c120 "JCLBOXHOLDTYPE", description=0x7fffffffd0a8) at
print-vars.c:1687
1687      stp_printer_describe_parameter(v, name, description);
(gdb)
-----

How should I proceed with debugging? Thanks!
-- 
WBR, Boris Samorodov (bsam)
FreeBSD Committer, http://www.FreeBSD.org The Power To Serve