Segfault on exit in XCloseDisplay

[kmcallister]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffeff95700 (LWP 15416)]
0x00007ffff55320ec in ?? () from /usr/lib/x86_64-linux-gnu/libGL.so.1
(gdb) bt
#0  0x00007ffff55320ec in ?? () from /usr/lib/x86_64-linux-gnu/libGL.so.1
#1  0x00007ffff5196ff2 in XCloseDisplay (dpy=0x13343d0) at ../../src/ClDisplay.c:65
#2  0x00007ffff7e83fb5 in layers::platform::linux::surface::Drop$NativePaintingGraphicsContext::drop ()
    at /home/keegan/proj/servo/servo/src/support/layers/rust-layers/platform/linux/surface.rs:64
#3  0x000000000051383a in layers..platform..linux..surface..NativePaintingGraphicsContext::glue_drop::h5bde0861835a6eax ()
#4  0x000000000052510c in gfx..render_task..RenderTask$LT$compositing..CompositorChan$C$script..dom..node..AbstractNode$LT$$LP$$RP$$GT$$GT$::glue_drop::hdc4e82c595ddd842a0 ()
#5  0x0000000000507eb2 in render_task::RenderTask::create::anon::expr_fn::oHa8ag ()
#6  0x00000000005057b4 in task::TaskBuilder::spawn_with::anon::expr_fn::Fiaial ()
#7  0x00007ffff7924855 in task::spawn::spawn_raw::anon::expr_fn::aE ()
   from /home/keegan/proj/servo/servo/build.debug/x86_64-unknown-linux-gnu/src/compiler/rust/x86_64-unknown-linux-gnu/stage2/lib/rustc/x86_64-unknown-linux-gnu/lib/libstd-6c65cf4b443341b1-0.9-pre.so
#8  0x00007ffff79828ae in rt::task::__extensions__::build_start_wrapper::anon::anon::expr_fn::aq ()
   from /home/keegan/proj/servo/servo/build.debug/x86_64-unknown-linux-gnu/src/compiler/rust/x86_64-unknown-linux-gnu/stage2/lib/rustc/x86_64-unknown-linux-gnu/lib/libstd-6c65cf4b443341b1-0.9-pre.so
#9  0x00007ffff7980933 in rt::task::__extensions__::run::anon::expr_fn::aq ()
   from /home/keegan/proj/servo/servo/build.debug/x86_64-unknown-linux-gnu/src/compiler/rust/x86_64-unknown-linux-gnu/stage2/lib/rustc/x86_64-unknown-linux-gnu/lib/libstd-6c65cf4b443341b1-0.9-pre.so
#10 0x00007ffff5bff1d3 in rust_try (f=<optimized out>, fptr=<optimized out>, env=<optimized out>)
    at /home/keegan/proj/servo/servo/src/compiler/rust/src/rt/rust_builtin.cpp:483
#11 0x00007ffff7980657 in rt::task::Task::run::h199ab8d6eb2269804van::v0.9$x2dpre ()
   from /home/keegan/proj/servo/servo/build.debug/x86_64-unknown-linux-gnu/src/compiler/rust/x86_64-unknown-linux-gnu/stage2/lib/rustc/x86_64-unknown-linux-gnu/lib/libstd-6c65cf4b443341b1-0.9-pre.so
#12 0x00007ffff798245a in rt::task::__extensions__::build_start_wrapper::anon::expr_fn::ah ()
   from /home/keegan/proj/servo/servo/build.debug/x86_64-unknown-linux-gnu/src/compiler/rust/x86_64-unknown-linux-gnu/stage2/lib/rustc/x86_64-unknown-linux-gnu/lib/libstd-6c65cf4b443341b1-0.9-pre.so
#13 0x0000000000000000 in ?? ()

[kmcallister]

Happens about 1/4 of the time when I close the window.

[pcwalton]

Blech, that's gonna be hard to debug. Wish it were an open source driver.

[kmcallister]

Yep. I'm going to see if I can reproduce some of these problems with Intel graphics.

[larsbergstrom]

Fixed by #1487