#760878 xserver-xorg-core: xserver crashes after a few clicks on a window (embedded ARM)

Package:
xserver-xorg-core
Source:
xorg-server
Description:
Xorg X server - core server
Submitter:
Tzafrir Cohen
Date:
2014-09-23 18:09:12 UTC
Severity:
important
#760878#5
Date:
2014-09-08 19:23:13 UTC
From:
To:
Dear Maintainer,

I have an ARM system with an LCD touch screen (1024x600). It crashes all
too often. In my test setup I managed to reproduce the crash by running
the following:

  X :0 -ac
  xterm

and clicking on the touch screen several times (I think I need to click
fast enough. Also: if there's no window, I think that the crash is not
reproduced).

A backtrace from Xorg for the crash is attached, but I could not make
any sense of it. If there's any further information I can provide,
please let me know.

This is a test upgrade to Jessie. The system works well on Wheezy (with
a custom vendor kernel). The board is based on the TI AM3354 chip (with
a PowerVR SGX GPU).
#760878#10
Date:
2014-09-23 17:59:17 UTC
From:
To:
Some updates:

1. The LCD display is 480x272 and not 1024x600.

2. The system runs a custom kernel. With the custom 3.2.0 we used with
Wheezy, the issue is not reproduced. It is reproduced with the custom
3.12.10 kernel we currently test (same system, booted with a different
kernel).