Re: [Bug-wget] [bug-wget] Segfault when trying to use metalinks

[Ángel González]

On 08/09/13 14:44, Darshit Shah wrote:
>     Try running the segfaulting metalink wget under valgrind.
>
>
> As Angel suggested, I ran the wget with the said metalink file through 
> valgrind. THe results are quite surprising:
>
> └─(~/testing)─(14 files, total 704Kb)─> valgrind --leak-check=full 
> ./wget --metalink metalink
> ==29833== Memcheck, a memory error detector
> ==29833== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
> ==29833== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright 
> info
> ==29833== Command: ./wget --metalink metalink
> ==29833==
> ==29833== Invalid write of size 4
> ==29833==    at 0x440FFA: fill_ranges_data (multi.c:148)
I bet an assert(i < opt.jobs); at multi.c:148 would fail.
I'm not sure how this code is supposed to work, but work from there.

It's funny how valgrind itself segfaulted, valgrind developers would 
probably be interested in that.

Don't worry about the sendmsg() warning from libc (it's shoud have been 
suppressed imho).

The leaks are something to fix, but not as critical as the segfault :)