** glibc detected *** error

kshitij_ghule wrote on Feb 08, 2007

i am getting the followinf error.
wat is the exact reason for this error.

*** glibc detected *** ./sam: malloc(): memory corruption: 0x08540d00 ***
======= Backtrace: =========
/lib/libc.so.6[0x5ad1a2]
/lib/libc.so.6(malloc+0x74)[0x5ae587]
./sam[0x8051275]
./sam[0x8051303]
./sam[0x804e272]
./sam[0x804e837]
./sam[0x805282f]
./sam[0x8052889]
./sam[0x80571e8]
./sam[0x8057339]
./sam[0x805bb44]
./sam[0x804b2ff]
/lib/libc.so.6(__libc_start_main+0xdf)[0x55dd7f]
./sam[0x804a791]
======= Memory map: ========
00111000-00113000 rwxp 00111000 00:00 0
00275000-0027e000 r-xp 00000000 08:02 16449588 /lib/libnss_files-2.3.6.so
0027e000-0027f000 r-xp 00008000 08:02 16449588 /lib/libnss_files-2.3.6.so
0027f000-00280000 rwxp 00009000 08:02 16449588 /lib/libnss_files-2.3.6.so
00288000-002b8000 rwxp 00288000 00:00 0
0052b000-00545000 r-xp 00000000 08:02 16449538 /lib/ld-2.3.6.so
00545000-00546000 r-xp 00019000 08:02 16449538 /lib/ld-2.3.6.so
00546000-00547000 rwxp 0001a000 08:02 16449538 /lib/ld-2.3.6.so
00549000-0066c000 r-xp 00000000 08:02 16449546 /lib/libc-2.3.6.so
0066c000-0066e000 r-xp 00122000 08:02 16449546 /lib/libc-2.3.6.so
0066e000-00670000 rwxp 00124000 08:02 16449546 /lib/libc-2.3.6.so
00670000-00672000 rwxp 00670000 00:00 0
0067a000-0069d000 r-xp 00000000 08:02 16449558 /lib/libm-2.3.6.so
0069d000-0069e000 r-xp 00022000 08:02 16449558 /lib/libm-2.3.6.so
0069e000-0069f000 rwxp 00023000 08:02 16449558 /lib/libm-2.3.6.so
00aee000-00af7000 r-xp 00000000 08:02 16449561 /lib/libgcc_s-4.0.2-20051126.so.1
00af7000-00af8000 rwxp 00009000 08:02 16449561 /lib/libgcc_s-4.0.2-20051126.so.1
00d0e000-00d0f000 r-xp 00d0e000 00:00 0
00d66000-00dbc000 rwxp 00d66000 00:00 0
08048000-081c4000 r-xp 00000000 08:11 18874602 /home/manredd/CollegeProject/sam
081c4000-081c8000 rwxp 0017c000 08:11 18874602 /home/manredd/CollegeProject/sam
081c8000-081d4000 rwxp 081c8000 00:00 0
08533000-08554000 rwxp 08533000 00:00 0 [heap]
b7e00000-b7e21000 rwxp b7e00000 00:00 0
b7e21000-b7f00000 ---p b7e21000 00:00 0
bfc8d000-bfca2000 rwxp bfc8d000 00:00 0 [stack]
Aborted

hoping for help at earliest

Kshitij,

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Mike Fitzpatrick wrote on Feb 08, 2007

The exact reason won't be known until you find the bug, generically it just means you corrupted a pointer in your program somewhere. Compiling with the '-g' flag will enable debugging output, and memory tools like Valgrind or ElectricFencec (Google for references) can help as can the MALLOC_CHECK_ environment variable (see the 'malloc' man page).

This doesn't appear to be any sort of IRAF program though so this probably isn't the best forum for solving the problem.

-Mike

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Last post on Feb 08, 2007