The seg fault cause:
Breakpoint 1, QXcbConnection::initializeXFixes (this=0x1fbc88) at
qxcbconnection.cpp:1042
1042 {
(gdb) l
1037 xcb_get_input_focus_cookie_t cookie =
Q_XCB_CALL(xcb_get_input_focus(xcb_connection()));
1038 free(xcb_get_input_focus_reply(xcb_connection(), cookie, 0));
1039 }
1040
1041 void QXcbConnection::initializeXFixes()
1042 {
1043 xcb_generic_error_t *error = 0;
1044 const xcb_query_extension_reply_t *reply =
xcb_get_extension_data(m_connection, &xcb_xfixes_id);
1045 xfixes_first_event = reply->first_event;
1046
(gdb) n
[Thread 0xb10b0460 (LWP 8635) exited]
1044 const xcb_query_extension_reply_t *reply =
xcb_get_extension_data(m_connection, &xcb_xfixes_id);
(gdb) p m_connection
$1 = (xcb_connection_t *) 0x1fc9b0
(gdb) p xcb_xfixes_id
$2 = {name = 0xb2433b28 "XFIXES", global_id = 2}
(gdb) n
1045 xfixes_first_event = reply->first_event;
(gdb) p reply
$3 = (const xcb_query_extension_reply_t *) 0x0
Qt expects the first call to 'xcb_get_extension_data' to return a valid
pointer, but in this case it's just returning NULL, breaking it up later
on.
--
You received this bug notification because you are a member of TI OMAP
Developers, which is subscribed to ubuntu-omap4-extras-graphics.
https://bugs.launchpad.net/bugs/1015292
Title:
Snowshoe fails with QT5 with a segmentation fault while starting the
application
Status in Ubuntu OMAP4 graphics addons:
New
Status in “pvr-omap4” package in Ubuntu:
Confirmed
Bug description:
While testing Qt 5 support on Ubuntu, and validating the support for
OpenGL ES2.0 with Pandaboard, I couldn't start Snowshoe (Qt 5 - webkit
based browser) as it gives a segmentation fault and also breaks the
X11 server (with the pvr driver).
After a quick check with Snowball (Mali 400), it worked properly and
as expected, so this could probably be related with the current SGX
driver available for Pandaboard.
How to reproduce the issue:
1) Enable https://launchpad.net/~canonical-qt5-edgers/+archive/qt5-daily
2) Install 'snowshoe-mobile' package
3) Run snowshoe: $ PATH=/opt/qt5/bin:$PATH; snowshoe
This is with Ubuntu 12.04 with pvr-omap4 1.7.10.0.1.21-0ubuntu1 (from
archive) and also 1.7.15.0.1.57-1 from TI's PPA.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-omap4-extras-graphics/+bug/1015292/+subscriptions
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