tiomap-dev team mailing list archive

[Ricardo Salveti <rsalveti@xxxxxxxxxxxx>]

If the pointer is also checked at the xorg side, it works as expected.
Tested with the patch:

commit 6e83934da0288e9a182c0f7982871ea5eaff1cec
Author: Ricardo Salveti de Araujo <ricardo.salveti@xxxxxxxxxx>
Date:   Wed Jun 20 20:19:09 2012 -0300

    randr: first check pSrcPriv before using the pointer at RRFirstOutput
    
    Fix a seg fault in case pSrcPriv fails to be allocated at
    ProcRRGetScreenInfo, which later calls RRFirstOutput.
    
    Signed-off-by: Ricardo Salveti de Araujo <ricardo.salveti@xxxxxxxxxx>

diff --git a/randr/randr.c b/randr/randr.c
index 4d4298a..9432819 100644
--- a/randr/randr.c
+++ b/randr/randr.c
@@ -446,6 +446,9 @@ RRFirstOutput(ScreenPtr pScreen)
     RROutputPtr output;
     int i, j;
 
+    if (!pSrcPriv)
+        return NULL;
+
     if (pScrPriv->primaryOutput && pScrPriv->primaryOutput->crtc)
         return pScrPriv->primaryOutput;
 


** Also affects: xorg-server (Ubuntu)
   Importance: Undecided
       Status: New

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Developers, which is subscribed to ubuntu-omap4-extras-graphics.
https://bugs.launchpad.net/bugs/1015292

Title:
  QT5 based applications fails with a segmentation fault with Pandaboard
  and the SGX driver

Status in Ubuntu OMAP4 graphics addons:
  New
Status in “pvr-omap4” package in Ubuntu:
  Confirmed
Status in “xorg-server” package in Ubuntu:
  New

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.

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