Oops, sorry for spam, I found it, there was char[80]
But in dictionary there's a string longer than that, fixed now :D
Cheers,
Jalil
On Sat, 28 Jan 2012, Mulyadi Santosa wrote:
Hi :)
On Sat, Jan 28, 2012 at 05:51, Jalil Karimov <jukarimov@xxxxxxxxx>
<jukarimov@xxxxxxxxx> wrote:
As I learn C, I decided to write a small dictionary program,
for my linux box.
Unfortunatly, I'm unable to proceed because of that weird bug which
I can't debug (no source of crash). Any help is appreciated.
Are you aware your question is not kernel related? :) but anyway...
munmap(0xb7860000, 4096) = 0
write(4, "\320\275\320\276-\320\266\321\221\320\273\321\202\321\213\320\271@11618255\n\321\217\320\270\321"..., 3875) = 3875
close(4) = 0
munmap(0xb785f000, 4096) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
looks like the bug triggered by releasing certain portion of
heap....sounds like double free()?
could you recompile your application using -g (a gcc parameter) and
then run it again under gdb? hopefully you get better stack strace
along with complete symbol names...
==11809== Jump to the invalid address stated on the next line
==11809== at 0x80D15D70: ???
==11809== Address 0x80d15d70 is not stack'd, malloc'd or (recently) free'd
==11809==
==11809==
==11809== Process terminating with default action of signal 11 (SIGSEGV)
==11809== Access not within mapped region at address 0x80D15D70
or.... you access something that haven't been initialized or
malloc()-ed properly. Now I leave it to you to re-audit your source
code :)
hope it helps..
--
regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
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