Connecting a software client to the affected nested server actually made
the nested server crash:
ERROR: /home/dan/bzr/mir/fixmirout/src/gl/recently_used_cache.cpp(44): Throw in
function virtual std::shared_ptr<mir::gl::Texture>
mir::gl::RecentlyUsedCache::load(const mir::graphics::Renderable&)
Dynamic exception type:
boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::logic_error>
>
std::exception::what: Buffer does not support GL rendering
** Description changed:
- Clients of nested Mir servers silently crash/exit instantly...
+ Clients of nested Mir servers silently crash/exit instantly (on xenial)
This happens in Mir trunk lp:mir and lp:mir/0.18, but not in lp:mir/0.17
- sudo bin/mir_demo_server_minimal -f /tmp/outside &
- sudo bin/mir_proving_server -f /tmp/inside --host-socket=/tmp/outside &
- sudo bin/mir_demo_client_egltriangle -m /tmp/inside
+ sudo bin/mir_demo_server_minimal -f /tmp/outside &
+ sudo bin/mir_proving_server -f /tmp/inside --host-socket=/tmp/outside &
+ sudo bin/mir_demo_client_egltriangle -m /tmp/inside
And the client silently exits with return code 139.
Valgrind or gdb show the problem though:
==16515== Process terminating with default action of signal 11 (SIGSEGV)
==16515== Access not within mapped region at address 0x123460A8
==16515== at 0x6EA16E0: XGetXCBConnection (in
/usr/lib/x86_64-linux-gnu/libX11-xcb.so.1.0.0)
==16515== by 0x517AC73: ??? (in
/usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1.0.0)
==16515== by 0x5174ADE: ??? (in
/usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1.0.0)
==16515== by 0x5174B98: ??? (in
/usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1.0.0)
==16515== by 0x5170B31: eglInitialize (in
/usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1.0.0)
==16515== by 0x4031A9: mir_eglapp_init (eglapp.c:350)
==16515== by 0x4024EC: main (egltriangle.c:85)
#0 0x00007ffff5b6e6e0 in XGetXCBConnection ()
- from /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1
+ from /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1
#1 0x00007ffff7893c74 in ?? ()
- from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
+ from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#2 0x00007ffff788dadf in ?? ()
- from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
+ from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#3 0x00007ffff788db99 in ?? ()
- from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
+ from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#4 0x00007ffff7889b32 in eglInitialize ()
- from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
- #5 0x00000000004031aa in mir_eglapp_init (argc=3, argv=0x7fffffffe548,
- width=0x7fffffffdd48, height=0x7fffffffdd4c)
- at /home/dan/bzr/mir/0.18/examples/eglapp.c:350
+ from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
+ #5 0x00000000004031aa in mir_eglapp_init (argc=3, argv=0x7fffffffe548,
+ width=0x7fffffffdd48, height=0x7fffffffdd4c)
+ at /home/dan/bzr/mir/0.18/examples/eglapp.c:350
#6 0x00000000004024ed in main (argc=3, argv=0x7fffffffe548)
- at /home/dan/bzr/mir/0.18/examples/egltriangle.c:85
+ at /home/dan/bzr/mir/0.18/examples/egltriangle.c:85
** Changed in: mir (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1526209
Title:
[regression] Clients of nested Mir servers silently crash/exit
instantly
Status in Mir:
New
Status in Mir 0.18 series:
New
Status in mesa package in Ubuntu:
New
Status in mir package in Ubuntu:
Incomplete
Bug description:
Clients of nested Mir servers silently crash/exit instantly (on
xenial)
This happens in Mir trunk lp:mir and lp:mir/0.18, but not in
lp:mir/0.17
sudo bin/mir_demo_server_minimal -f /tmp/outside &
sudo bin/mir_proving_server -f /tmp/inside --host-socket=/tmp/outside &
sudo bin/mir_demo_client_egltriangle -m /tmp/inside
And the client silently exits with return code 139.
Valgrind or gdb show the problem though:
==16515== Process terminating with default action of signal 11 (SIGSEGV)
==16515== Access not within mapped region at address 0x123460A8
==16515== at 0x6EA16E0: XGetXCBConnection (in
/usr/lib/x86_64-linux-gnu/libX11-xcb.so.1.0.0)
==16515== by 0x517AC73: ??? (in
/usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1.0.0)
==16515== by 0x5174ADE: ??? (in
/usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1.0.0)
==16515== by 0x5174B98: ??? (in
/usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1.0.0)
==16515== by 0x5170B31: eglInitialize (in
/usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1.0.0)
==16515== by 0x4031A9: mir_eglapp_init (eglapp.c:350)
==16515== by 0x4024EC: main (egltriangle.c:85)
#0 0x00007ffff5b6e6e0 in XGetXCBConnection ()
from /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1
#1 0x00007ffff7893c74 in ?? ()
from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#2 0x00007ffff788dadf in ?? ()
from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#3 0x00007ffff788db99 in ?? ()
from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#4 0x00007ffff7889b32 in eglInitialize ()
from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#5 0x00000000004031aa in mir_eglapp_init (argc=3, argv=0x7fffffffe548,
width=0x7fffffffdd48, height=0x7fffffffdd4c)
at /home/dan/bzr/mir/0.18/examples/eglapp.c:350
#6 0x00000000004024ed in main (argc=3, argv=0x7fffffffe548)
at /home/dan/bzr/mir/0.18/examples/egltriangle.c:85
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