geis_ugsubscription_release_for_device() fails -- causes compiz to crash on resume from S3

[Ayan George]

Summary:
Aftr resuming from s3, the GUI screen was all black. I could Ctrl-Alt-F1 (2,3,...) and get to alternate consoles. I was able to in the black GUI to hit the password and see the white mouse arrow change to a vertical "I" in the middle of the screen and an arrow when it was palced on the left side of the screen where the lanucher would be.

Steps:
1) Login to the desktop.
2) Open Firefox and a terminal session.
3) Click on the gear in the upper right corner of the screen and select "Suspend"
4) Close the lid and wait a minute.
5) Observe that the power LED flashes slowly on and off.
6) Lift the laptop lid.
7) log in
8) Repeat steps 3 through 7

Expected results: System resumes to the GUI login screen.

Actual results: System screen is all black with a white arrow for a mouse cursor.

Additional information:
1) Happens about 1 out of 5 tries.
2) If you run [sudo service lightdm restart] in a virtual console the GUI will restart.

THIS HAPPENS ON YET TO BE RELEASED HARDWARE.

[Ayan George (ayan)]

This is a backtrace of compiz when this occurs.

Restarting compiz fixes the problem.

#0 0x00007f643d9a9445 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f643d9acbab in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00007f643d9e6e2e in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3 0x00007f643d9f1626 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#4 0x00007f6429cc820d in geis_ugsubscription_release_for_device (store=0x1710e10, filter=0x1710b70, device=0x170f340, window_grabs=0x170f200)
    at geis_ugsubscription_store.c:177
#5 0x00007f6429cc6192 in _grail_be_unsubscribe_removed_device (device=0x170f340, gbe=<optimized out>) at geis_grail_backend.c:747
#6 _geis_grail_remove_device (frame_device=0x170f340, gbe=0x16f9988) at geis_grail_backend.c:935
#7 _geis_be_flush_frame_events (gbe=0x16f9988) at geis_grail_backend.c:997
#8 _grail_be_frame_fd_callback (fd=<optimized out>, ev=<optimized out>, ctx=0x16f9988) at geis_grail_backend.c:1021
#9 0x00007f6429cbb426 in geis_backend_multiplexor_pump (mx=0x16f6240) at geis_backend_multiplexor.c:416
#10 0x00007f6429cc0d0c in geis_event_dispatch (instance=<optimized out>) at geis_v1.c:603
#11 0x00007f642a3a27e0 in GeisAdapter::OnWatchIn(_GIOChannel*, GIOCondition, void*) () from /usr/lib/compiz/libunityshell.so
#12 0x00007f643c2c8d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f643c2c90a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f643c2c9164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f64387c8cb9 in processEvents (flags=<optimized out>) at /build/buildd/compizconfig-backend-gconf-0.9.5.92/src/gconf.c:1918
#16 processEvents (flags=<optimized out>) at /build/buildd/compizconfig-backend-gconf-0.9.5.92/src/gconf.c:1913
#17 0x00007f643947d59e in CcpScreen::timeout (this=0x1252200) at /build/buildd/libcompizconfig-0.9.7.0~bzr428/plugin/ccp/src/ccp.cpp:430
#18 0x00007f643e2bfe5b in operator() (this=<optimized out>) at /usr/include/boost/function/function_template.hpp:1013
#19 CompTimer::triggerCallback (this=<optimized out>) at /build/buildd/compiz-0.9.7.8/src/timer/src/timer.cpp:227
#20 0x00007f643e2bff5f in CompTimeoutSource::callback (this=<optimized out>) at /build/buildd/compiz-0.9.7.8/src/timer/src/timer.cpp:150
#21 0x00007f643e2bf40d in operator() (this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:440
#22 dispatch (slot=<optimized out>, this=<optimized out>) at /build/buildd/compiz-0.9.7.8/src/timer/src/timer.cpp:133
#23 CompTimeoutSource::dispatch (this=<optimized out>, slot=<optimized out>) at /build/buildd/compiz-0.9.7.8/src/timer/src/timer.cpp:131
#24 0x00007f643c7c0f2f in Glib::Source::dispatch_vfunc(_GSource*, int (*)(void*), void*) () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#25 0x00007f643c2c8d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f643c2c90a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f643c2c949a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x000000000040241e in main (argc=<optimized out>, argv=0x7ffff3ec1d28) at /build/buildd/compiz-0.9.7.8/src/...

[Daniel d'Andrada (dandrader)]

What do you mean by "s3" when you say "resuming from s3"?

[Daniel d'Andrada (dandrader)]

Ah, ok. Must be some suspend state.

[Ayan George (ayan)]

Yes.

Also, we've seen a similar (the same?) bug present itself as a simple compiz crash without the black screen and mouse.

The backtrace looks the same.

[Daniel d'Andrada (dandrader)]

Could you tell me what version of geis library you used?

[Daniel d'Andrada (dandrader)]

Tried over 10 times on a Dell Vostro 3550 running precise without and didn't see the bug.

It's likely related to the presence of multitouch input devices. Could you please attach the output of "xinput --list --long" when run in the computer that shows the crash?

[Daniel d'Andrada (dandrader)]

> Tried over 10 times on a Dell Vostro 3550 running precise without and didn't see the bug.

Correcting:
Tried over 10 times on a Dell Vostro 3550 running precise and didn't see the bug.

[Ayan George (ayan)]

Daniel,

I'm using libtouch-geis1 2.2.9-0ubuntu3

I've attached xinput output in the previous comment.

[Daniel d'Andrada (dandrader)]

Thanks for the xinput.

[Daniel d'Andrada (dandrader)]

xinput log shows no multitouch device. I've also tested it with a laptop containg a multitouch input device and still couldn't reproduce the crash.