Re: [PATCH] drm/vgem: Allow root to inject hanging fences onto dmabufs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Jul 20, 2016 at 08:39:43PM +0100, Chris Wilson wrote:
> When performing driver testing, one factor we want to test is how we
> handle a foreign fence that is never signaled. We can wait on that fence
> indefinitely, in which case the driver appears hung, or we can take some
> remedial action (with risks regarding the state of any shared content).
> Whatever the action choosen by the driver, in order to perform the test
> we want to disable the safety feature of vgem fence (which is then used
> to test implicit dma-buf fencing). This is regarded as a highly
> dangerous feature and so hidden behind an expert config option and only
> available to root when enabled.
> 
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>

Ping. This is invaluable for my testing (some tests are impossible
without it).

The only comment was by Kristian asking why this should be root-only
which nicely contrasts the earlier *demand* that this should be root-only
and removed from the default set of vgem capabilities.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel




[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux