Re: [wmii] wmii-3.1 bug: libixp overload

On Tue, Sep 19, 2006 at 02:10:14AM -0700, Suraj N. Kurapati wrote:
> Anselm R. Garbe wrote:
> > On Tue, Sep 19, 2006 at 01:45:37AM -0700, Suraj N. Kurapati wrote:
> >> In wmii-3.1, it is possible to overload libixp with lots of 9P
> >> traffic, maintained _continuously_ for about a minute, such that it
> >> freezes.
> >>
> > Please check if tuning maxfiles in your Unix environment will
> > increase this boundary (maybe the amount of fd's is exceeded).
>
> By file descriptors, do you mean the number of sockets trying to
> connect with libixp?
>
> If so, I think the problem is the amount and rate of traffic, rather
> than the number of sockets requesting connections. The reason is: I
> can also reproduce the bug by pumping lots of traffic through a
> single socket (one ruby-ixp connection).

FWIW, I managed to freeze wmiiwm a few times when I modified ruby-wmii to use
Ruby-IXP 0.1.

wmiiwm got hanged in ixp_send_message, since the write(2) syscall blocked.
That was with wmii-3.1 + Ruby-IXP 0.1. I'll try to reproduce it with
Ruby-IXP 1.0.2 and a more recent wmii.

-- 
Mauricio Fernandez  -   http://eigenclass.org   -  singular Ruby