Bug 33946 - Crash: Mesa checks for invalid pointer, then uses it anyway.
Summary: Crash: Mesa checks for invalid pointer, then uses it anyway.
Alias: None
Product: Mesa
Classification: Unclassified
Component: Other (show other bugs)
Version: 7.9
Hardware: All All
: medium critical
Assignee: Kristian Høgsberg
QA Contact:
Depends on:
Reported: 2011-02-05 13:34 UTC by Gabriel M. Beddingfield
Modified: 2011-02-20 11:27 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:


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Description Gabriel M. Beddingfield 2011-02-05 13:34:31 UTC
Using Mixxx 1.9.0-beta on MeeGo (Mesa 7.9.1) I got a SEGFAULT here:

   /* BEGIN: src/egl/drivers/dri2/egl_dri2.c:1548 */
   geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn,
                                            geometry_cookie, &error);
   if (geometry_reply == NULL || error != NULL) {
      _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");

   switch (geometry_reply->depth) {
   /* END */

The pointer returned is checked for validity... but the function does not return.  The SEGFAULT occurs at the switch() statement.
Comment 1 Ian Romanick 2011-02-07 13:52:28 UTC
Reassigning to Kristian with Chia-I Wu on CC as they've been working in this area.

It also seems that we need an EGL component in bugzilla.
Comment 2 Chia-I Wu 2011-02-20 11:27:40 UTC
This should be fixed by bf0c56522e21bd45ad3385e3115ef7eb71a7b8bf on master.

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