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From: Haobing W. <hw...@ep...> - 2003-08-12 15:50:19
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Hello, When I used "valgrind --leak-check=yes" to check my C program, it gave such information: ==2363== Invalid read of size 4 ==2363== at 0x8049949: main (gating_grinder2J.c:410) ==2363== by 0x40279A46: __libc_start_main (in /lib/libc-2.3.2.so) ==2363== by 0x80487C0: ??? (start.S:81) ==2363== Address 0x41209920 is 0 bytes after a block of size 528 alloc'd ==2363== at 0x4002942A: malloc (vg_replace_malloc.c:153) ==2363== by 0x8049025: main (gating_grinder2J.c:247) ==2363== by 0x40279A46: __libc_start_main (in /lib/libc-2.3.2.so) ==2363== by 0x80487C0: ??? (start.S:81) Done. ==2363== ==2363== ERROR SUMMARY: 4096 errors from 1 contexts (suppressed: 0 from 0) ==2363== malloc/free: in use at exit: 19081 bytes in 8 blocks. ==2363== malloc/free: 91010 allocs, 91002 frees, 45431125 bytes allocated. ==2363== For counts of detected errors, rerun with: -v ==2363== searching for pointers to 8 not-freed blocks. ==2363== checked 3802352 bytes. ==2363== ==2363== LEAK SUMMARY: ==2363== definitely lost: 0 bytes in 0 blocks. ==2363== possibly lost: 0 bytes in 0 blocks. ==2363== still reachable: 19081 bytes in 8 blocks. ==2363== suppressed: 0 bytes in 0 blocks. ==2363== Reachable blocks (those to which a pointer was found) are not shown. ==2363== To see them, rerun with: --show-reachable=yes ==2363== Does anybody know what is the problem with the error? I couldn't find any error in my program and it seemed that the program could run normally. The line 247 in main is: vec_rows[k] = (float *)malloc(Timepts*sizeof(float)) Any help is much appreciated! Haobing |