[PATCH 0/2] Don't use xshmfence unless supported by the driver

[Keith Packard]

Keith Packard <keithp at keithp.com> writes:

> This makes the xshmfence stuff only used if the driver specifies it,
> allowing drivers to specify other FD-passing based fences, and also
> avoiding errors if a driver doesn't initialize any FD-passing based
> fences.
>
> Without these changes, the X server will crash when an application
> creates an xshmfence object and passes that to the X server to a
> driver that has no DRI3 FD passing support.

I'd love to see if anyone wants to give this patch a try, or at least
look over it. It's a serious bug in the X server that applications
using the DRI3 extension incorrectly can currently crash X.

RC coming out on Friday, the last before the minor bug window closes
next week.

-- 
keith.packard at intel.com
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