On Friday 30 Jun 2017 12:18:52 Mick wrote:
> On Thursday 29 Jun 2017 07:37:46 Carsten Haitzler wrote:
> > On Wed, 28 Jun 2017 15:06:48 +0100 Mick <[email protected]> said:
> > > built mesa with debug flags and captured another crash.  Can you please
> > > scan through the backtrace below and confirm if the verdict is still the
> > > same and if anything mesa related in particular stands out which I enter
> > > in a bug report?
> > 
> > sure. but keep in mind that just because e shows a bug doesnt mean other
> > compositors will.
> 
> Yes, I tried had to make LO to crash KDE (plasma), but KDE's compositor
> wouldn't have any of it.  No matter how much or how fast I moved the mouse
> over the menu to cause tooltips to overlap as they popped up and
> disappeared/reappeared, KDE continued to display them without freezing up. 
> If I moved too fast over the tooltip generating area they just blurred a
> bit without rendering fully their content in the milliseconds they were
> given to render, before the mouse moved on to the next area.  Such blurring
> would cause a freeze on evas/e.
> 
> Conclusion:  Plasma compositor will not cause the same crash by libdri.
> 
> > > https://pastebin.com/Y6SxaKGF
> > 
> > now to this...  it doesn't tell me more than it did before... it's a fence
> > sync within the driver layer. it's a problem between the driver and itself
> > across process boundaries. if you want i can explain what fences are and
> > their purpose (in general) and why this would be the case and i can
> > probably narrow down where the issues are being caused in the x 2d + dri
> > driver stack... but it'll be a long explanation. i do not know the DETAILS
> > of the fence implementations down at the dri level... but i do know what
> > fences are, what they in general do and why this tells me the issue is not
> > something we can solve in efl...
> > 
> > if you want the details - let me know. otherwise know that this is a bug
> > you likely have to file with the dri3/mesa/xorg 2d/radeon driver
> > people... :/
> I thought this was a radeon driver problem.  On some further testing shows
> this *also* occurs on Intel!  An old Acer Incorporated [ALI] Mobile 4 Series
> Chipset (ICH9) Integrated Graphics Controller  crashed in the same manner.
> This is using the i965 & intel flags in mesa, rather than
> r600/radeon/radeonsi.  So it does not seem to be radeon specific.  I've
> tried with mesa-17.0.6 which is when the problems seem to have started and
> with mesa-17.1.3.
> 
> I've started with a report to Gentoo for now and will see what they advise.

Would there be a setting to disable tooltip hardware acceleration in the 
compositor I could select, so as to continue using e without crashing?

I tried disabling composite effects for menus/popups but it still crashes.  
What category of composite effects application windows' tooltips fall under?
-- 
Regards,
Mick
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