Re: `filetype' ext2 feature causes dump to SEGV

Matthias Urlichs (smurf@noris.de)
8 Jan 2000 13:55:49 +0100

"Theodore Y. Ts'o" <tytso@mit.edu> writes:
> convert_dir, and smashed pointers used by malloc/free. Dump then
> crashed in some other completely unrelated spot, later on.

So, lesson for the day -- anytime you get a crash in malloc/realloc/free,
do this:

$ env LD_PRELOAD=/usr/lib/libefence.so whatever_crashed
## twiddle thumbs
Segmentation fault (core dumped)
$ gdb whatever_crashed core
> where

Now the gdb traceback will show exactly where the bad code broke the rules.
Usually. :-/

-- 
Matthias Urlichs  |  noris network GmbH   |   smurf@noris.de  |  ICQ: 20193661
The quote was selected randomly. Really.    |      http://www.noris.de/~smurf/

-- 
Should crematoriums give discounts for burn victims?


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/