gdb output
Can anybody help me understand this:
Starting program: /root/readwrite /vx/mirrored1/fload_1/ 4
[Thread debugging using libthread_db enabled]
[New Thread -1208797504 (LWP 5779)]
[New Thread -1208800368 (LWP 5782)]
str1->dir_Name: /vx/mirrored1/fload_1/
dirName: /vx/mirrored1/fload_1/
[New Thread -1219290224 (LWP 5783)]
str1->dir_Name: /vx/mirrored1/fload_1/
dirName: /vx/mirrored1/fload_1/
[New Thread -1229780080 (LWP 5784)]
str1->dir_Name: /vx/mirrored1/fload_1/
dirName: /vx/mirrored1/fload_1/
File Name: /vx/mirrored1/fload_1/.
[New Thread -1240269936 (LWP 5785)]
*** glibc detected *** /root/readwrite: munmap_chunk(): invalid pointer: 0x08a04030 ***
======= Backtrace: =========
/lib/libc.so.6(cfree+0x1bb)[0x6da15b]
/root/readwrite[0x8048b75]
/lib/libc.so.6(__libc_start_main+0xdc)[0x683dec]
/root/readwrite[0x8048751]
======= Memory map: ========
00236000-00237000 r-xp 00236000 00:00 0 [vdso]
00650000-0066a000 r-xp 00000000 03:02 262708 /lib/ld-2.5.so
0066a000-0066b000 r-xp 00019000 03:02 262708 /lib/ld-2.5.so
0066b000-0066c000 rwxp 0001a000 03:02 262708 /lib/ld-2.5.so
0066e000-007ab000 r-xp 00000000 03:02 262709 /lib/libc-2.5.so
007ab000-007ad000 r-xp 0013d000 03:02 262709 /lib/libc-2.5.so
007ad000-007ae000 rwxp 0013f000 03:02 262709 /lib/libc-2.5.so
007ae000-007b1000 rwxp 007ae000 00:00 0
007e2000-007f5000 r-xp 00000000 03:02 262711 /lib/libpthread-2.5.so
007f5000-007f6000 r-xp 00012000 03:02 262711 /lib/libpthread-2.5.so
007f6000-007f7000 rwxp 00013000 03:02 262711 /lib/libpthread-2.5.so
007f7000-007f9000 rwxp 007f7000 00:00 0
00922000-0092d000 r-xp 00000000 03:02 262718 /lib/libgcc_s-4.1.2-20080102.so.1
0092d000-0092e000 rwxp 0000a000 03:02 262718 /lib/libgcc_s-4.1.2-20080102.so.1
08048000-0804a000 r-xp 00000000 03:02 3517332 /root/readwrite
0804a000-0804b000 r--p 00001000 03:02 3517332 /root/readwrite
0804b000-0804c000 rw-p 00002000 03:02 3517332 /root/readwrite
08a04000-08a25000 rw-p 08a04000 00:00 0
b572f000-b5730000 ---p b572f000 00:00 0
b5730000-b6130000 rw-p b5730000 00:00 0
b6130000-b6131000 ---p b6130000 00:00 0
b6131000-b6b31000 rw-p b6131000 00:00 0
b6b31000-b6b32000 ---p b6b31000 00:00 0
b6b32000-b7532000 rw-p b6b32000 00:00 0
b7532000-b7533000 ---p b7532000 00:00 0
b7533000-b7f35000 rw-p b7533000 00:00 0
b7f48000-b7f49000 rw-p b7f48000 00:00 0
bfa9c000-bfab2000 rw-p bfa9c000 00:00 0 [stack]
File Name: /vx/mirrored1/fload_1/.
Program received signal SIGABRT, Aborted.
[Switching to Thread -1208797504 (LWP 5779)]
0x00236402 in __kernel_vsyscall ()
(gdb) bt
#0 0x00236402 in __kernel_vsyscall ()
#1 0x00696d10 in raise () from /lib/libc.so.6
#2 0x00698621 in abort () from /lib/libc.so.6
#3 0x006cee5b in __libc_message () from /lib/libc.so.6
#4 0x006da15b in free () from /lib/libc.so.6
#5 0x08048b75 in main ()
(gdb)
How to understand what has happened? there are multiple free statements but how to tell which one violated the limits...??
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