Re: [Valgrind-users] valgring whith JudyArray

[Dan K. <da...@ke...>]

Salim SAYOURI wrote:
> I'm trying to run valgrind on my stack. Unfortunately it fails all time when
> calling a function in the Judy lib (C libraries for creating and accessing
> dynamic arrays: http://judy.sourceforge.net/)

> ==21866== Invalid read of size 4
> ==21866==    at 0x402702E4: JudySLIns (src/JudySL/JudySL.c:630)
> ==21866==    by 0x8048789: main (judySL_test.c:20)
> ==21866==    by 0x40296686: __libc_start_main (../sysdeps/generic/libc-start.c:129)
> ==21866==    by 0x8048630: (within /home/ocadmin/salim/lab_RD/a.out)
> ==21866==    Address 0x40D35020 is 4 bytes before a block of size 7 alloc'd
> ==21866==    at 0x4002BB60: malloc (vg_replace_malloc.c:153)
> ==21866==    by 0x40270009: JudySLIns (src/JudySL/JudySL.c:552)
> ==21866==    by 0x8048789: main (judySL_test.c:20)
> ==21866==    by 0x40296686: __libc_start_main (../sysdeps/generic/libc-start.c:129)
> ==21866==
> ==21866== Invalid free() / delete / delete[]
> ==21866==    at 0x4002BE5B: free (vg_replace_malloc.c:231)
> ==21866==    by 0x40270378: JudySLIns (src/JudySL/JudySL.c:639)
> ==21866==    by 0x8048789: main (judySL_test.c:20)
> ==21866==    by 0x40296686: __libc_start_main (../sysdeps/generic/libc-start.c:129)
> ==21866==    Address 0x40D35020 is 4 bytes before a block of size 7 alloc'd
> ==21866==    at 0x4002BB60: malloc (vg_replace_malloc.c:153)
> ==21866==    by 0x40270009: JudySLIns (src/JudySL/JudySL.c:552)
> ==21866==    by 0x8048789: main (judySL_test.c:20)
> ==21866==    by 0x40296686: __libc_start_main (../sysdeps/generic/libc-start.c:129)
> File 'judySL_test.c', line 20: JudySLIns(), JU_ERRNO_* == 7, ID == 396

Assuming your test program isn't buggy,
you may have found a bug in the Judy library.
Either way, you probably want to take this up on the Judy mailing list...
- Dan