Ok, I can reproduce the crash pretty easily here. Let's see what I can
shake out with a full debug stack.
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to libxcb in Ubuntu.
https://bugs.launchpad.net/bugs/1318584
Title:
qt crashed when
So, the relevant madness appears to be:
…snip all the glib detritus…
==30400== Invalid read of size 8
==30400==at 0xE8587FB: QGLXContext::makeCurrent(QPlatformSurface*)
(qglxintegration.cpp:333)
==30400==by 0x6339772: QOpenGLContext::makeCurrent(QSurface*)
(qopenglcontext.cpp:812)
So, it looks like there's a race between the destruction of an
QXcbScreen in response to a RANDR event in handleXcbEvent and (a) expose
handling and (b) some timer. I'll forward this upstream and might let
someone more familiar with Qt take over.
--
You received this bug notification because you
On utopic when I disable the active screen I get the following
backtrace:
pure virtual method called
terminate called without an active exception
Program received signal SIGABRT, Aborted.
0x74e4c117 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
56
For completeness sake, here's mine on Latitude D630 (Intel 965GM
graphics), also inside qglxintegration.cpp but slightly different.
Program received signal SIGSEGV, Segmentation fault.
0x7fffee0aa81c in QGLXContext::swapBuffers (this=0x81d790,
surface=0x638450) at qglxintegration.cpp:392
It seems display driver is not important, I always hit this bug it
seems, on nvidia, nouveau, radeon and intel.
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to libxcb in Ubuntu.
https://bugs.launchpad.net/bugs/1318584
Title:
qt crashed when
I think it only depends on whether opengl acceleration is enabled
whether you get the former or latter behavior.
** No longer affects: libxcb (Ubuntu)
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to libxcb in Ubuntu.
** Also affects: libxcb (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
-
checkbox-gui crashed with following console outputs:
pure virtual method called
terminate called without an active exception
Aborted (core dumped)
Steps to reproduce:
1.
Unfortunately the two patches I cherry-picked for qtbase do not seem to
fix the problem for me on that Dell laptop where I'm able to reproduce
the problem.
I also included updated libxcb since I saw
http://cgit.freedesktop.org/xcb/libxcb/commit/?id=be0fe56c3bcad5124dcc6c47a2fad01acd16f71a
9 matches
Mail list logo
