Re: [forum] Re: restest hangs the server (was: Some hard numbers on XFree86 memory usage ...)

On 21 Apr 2003, Owen Taylor wrote:

> On Mon, 2003-04-21 at 09:25, Michel Dänzer wrote:
> > [ please follow up to the devel list only if you agree that this is more
> > appropriate there ]
> > 
> > On Mon, 2003-04-21 at 08:13, Aidan Kehoe wrote:
> > >  Ar an 19ú lá de mí 4, scríobh Mark Vojkovich :
> > > 
> > >  >     http://www.xfree86.org/~mvojkovi/restest.c
> > > 
> > > That locks up my X server (except for the mouse cursor) on NetBSD 1.6P,
> > > btw. 
> > 
> > I experienced the same on Linux/PPC, thought it was architecture
> > specific, but maybe not?
> > 
> > > No problem when it's run from a virtual console with DISPLAY set
> > > appropriately. Where would one go to fix this?
> > 
> > The first thing to do would be to find out where it hangs I guess.
> > Funnily, the server would still respond to the keyboard, at least I
> > could switch VTs, but it wouldn't draw (everything) anymore.
> 
> It doesn't actually hang the server, rather what
> happens is that it outputs to terminal with a server
> grab.
> 
> So, if you run it in a xterm (etc.), you get a:
> 
>  X server blocks on restest
>  restest blocks on terminal
>  terminal blocks on X server

   That doesn't happen with xterm over here.  

			Mark.

> 
> loop. If you ssh into your box and kill restest things will
> be fine.
> 
> The workaround is to redirect the output to a file:
> 
> See:
> 
>  http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=86422
> 
> Regards,
>                                      Owen