Re: QtWebEngine issue

Incidentally, turning off accelerated graphics in VMware seems to
solve the problem entirely.

On Wed, Nov 9, 2016 at 3:54 PM, Dave Page <dpage(at)pgadmin(dot)org> wrote:
> Hi Neel,
>
> Per our earlier discussion on the QtWebEngine crash we were seeing,
> here's some more info from my testing.
>
> I turned off high performance graphics in VMware, and started to get
> almost immediate crashes of the runtime (from which I could get little
> useful information)
>
> With:
>
> QCoreApplication::setAttribute(Qt::AA_UseSoftwareOpenGL);
>
> I managed to get it to run again, but then I commented that back out,
> and it was still running without immediately crashing. The black
> screen issue is still occurring though, albeit with various errors
> that may or may not be given with each crash:
>
> I often see lots of this message:
>
> context mismatch in svga_sampler_view_destroy
>
> I have seen this a few times:
>
> [1109/153107:ERROR:scoped_ole_initializer.cc(20)] Multiple
> OleInitialize() calls for thread 5644
> [1109/153107:ERROR:scoped_ole_initializer.cc(20)] Multiple
> OleInitialize() calls for thread 5644
>
> I have seen this more rarely (on occasions where it occurs before the
> black screen of death):
>
> 2016-11-09 15:38:39,917: INFO werkzeug: 127.0.0.1 - - [09/Nov/2016
> 15:38:39] "GET /sqleditor/poll/9539586 HTTP/1.1" 500 -
> Traceback (most recent call last):
> File "C:\Program Files\PostgreSQL\9.6\pgAdmin
> 4\venv\Lib\site-packages\flask\app.py", line 2000, in __call__
> return self.wsgi_app(environ, start_response)
> File "C:\Program Files\PostgreSQL\9.6\pgAdmin
> 4\venv\Lib\site-packages\flask\app.py", line 1984, in wsgi_app
> ctx.push()
> File "C:\Program Files\PostgreSQL\9.6\pgAdmin
> 4\venv\Lib\site-packages\flask\ctx.py", line 332, in push
> self.session = self.app.open_session(self.request)
> File "C:\Program Files\PostgreSQL\9.6\pgAdmin
> 4\venv\Lib\site-packages\flask\app.py", line 914, in open_session
> return self.session_interface.open_session(self, request)
> File "C:\Users\dpage\Documents\pgadmin4\web\pgadmin\utils\session.py",
> line 249, in open_session
> return self.manager.get(sid, digest)
> File "C:\Users\dpage\Documents\pgadmin4\web\pgadmin\utils\session.py",
> line 133, in get
> del self._cache[sid]
> File "C:\Python27\Lib\collections.py", line 86, in __delitem__
> link_prev, link_next, _ = self.__map.pop(key)
> KeyError: u'84c7ee6c-6ab7-4c52-a5b7-45d6c9f7e87d'
>
> Finally, I've seen this a couple of times:
>
> context mismatch in svga_sampler_view_destroy
> [1109/153857:FATAL:resource_scheduler.cc(1051)] Check failed:
> client_map_.empty().
> Backtrace:
> GetHandleVerifier [0x11C47DD1+23425]
> IsSandboxedProcess [0x11BD464B+6479819]
> QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x108C0B06+1858950]
> QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x1072EC46+212678]
> QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x1072E886+211718]
> QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x107434D9+296793]
> QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x1074334A+296394]
> QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x10737FBD+250429]
> IsSandboxedProcess [0x119E5501+4451969]
> CertificateErrorController::error [0x10C83E6A+1234282]
> QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x109CC7BC+2955836]
> IsSandboxedProcess [0x1198397F+4051711]
> GetHandleVerifier [0x11CB3E0B+465851]
> IsSandboxedProcess [0x11BFF020+6654368]
> IsSandboxedProcess [0x11BFD494+6647316]
> IsSandboxedProcess [0x11BFD9DD+6648669]
> GetHandleVerifier [0x11CB68B2+476770]
> GetHandleVerifier [0x11CB8312+483522]
> GetHandleVerifier [0x11CB827C+483372]
> IsSandboxedProcess [0x11BFED0F+6653583]
> IsSandboxedProcess [0x11C18286+6757382]
> IsSandboxedProcess [0x11BFEB8D+6653197]
> IsSandboxedProcess [0x11C313E6+6860134]
> QtWebEngineCore::JavaScriptDialogController::qt_static_metacall
> [0x106BCEA4+5221044]
> QtWebEngineCore::JavaScriptDialogController::qt_static_metacall
> [0x106BDFE8+5225464]
> IsSandboxedProcess [0x11C31F78+6863096]
> IsSandboxedProcess [0x11C384D3+6889043]
> BaseThreadInitThunk [0x750E95E4+36]
> RtlCheckPortableOperatingSystem [0x7744241A+362]
> RtlCheckPortableOperatingSystem [0x774423E9+313]
>
> --
> Dave Page
> Blog: http://pgsnake.blogspot.com
> Twitter: @pgsnake
>
> EnterpriseDB UK: http://www.enterprisedb.com
> The Enterprise PostgreSQL Company

--
Dave Page
Blog: http://pgsnake.blogspot.com
Twitter: @pgsnake

EnterpriseDB UK: http://www.enterprisedb.com
The Enterprise PostgreSQL Company