On Tue, Aug 18, 2015 at 12:23:12PM +0200, Gabriel Pérez-Cerezo wrote:
> At Tue, 18 Aug 2015 11:15:59 +0100,
> Dimitris Papastamos wrote:
> > > The command prints
> > > [Aug 18 11:55:55] WARNING torsocks[14305]: [syscall] Unsupported
> > > syscall number 240. Denying the call (in tsocks_syscall() at syscall.c:165)
> > > to STDOUT.
> >
> > What syscall is it?
> I don't know. I tried man syscall and man syscalls but none of them
> contain a list of syscalls by number. How do I look it up?
Numbers are different per architecture. For i686 I guess the right
place to look is here[0].
Futexes are not directly used by surf but indirectly by libc. I don't
think there is much we can do here, this seems like an issue on the torsocks
side. By denying the system call, perhaps something is left uninitialized
and then crashes.
[0]
http://lxr.free-electrons.com/source/arch/x86/syscalls/syscall_32.tbl
Received on Tue Aug 18 2015 - 12:28:36 CEST