Enabling multitouch in input-evdev

Julien Cristau jcristau at debian.org
Mon Jan 18 04:53:17 PST 2010

On Mon, Jan 18, 2010 at 13:02:54 +0100, Benjamin Tissoires wrote:

> Peter Hutterer wrote:
> >First of all, thanks for your efforts here. I really appreciate that you
> >pushed it that far and I'm sorry about the delay in my comments.
> >
> >On Fri, Jan 08, 2010 at 12:55:21PM +0100, Benjamin Tissoires wrote:
> >>First, I try to dynamically create/detroy such subdevices. However,
> >>it infers very often freezes in the Xserver due to some mallocs. So
> >>the idea to solve this problem is to staticaly allocate the
> >>subdevices.
> >
> >Do you have any logs or other data on where these freezes occured? they'd be
> >useful for others as well since chances are someone is going to run into
> >this deadlock.
> >
> Sorry, when this freezes occurs I only had backtracks from the
> driver (a xmalloc) and not the other threads (I forgot to check
> them). I add this to my todo list.

The server is single threaded.  But if you're doing malloc in the SIGIO
handler (anything called from EvdevReadInput), then yeah, you can't do


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