registry team mailing list archive

[Bug Watch Updater <346072@xxxxxxxxxxxxxxxxxx>]

Launchpad has imported 3 comments from the remote bug at
http://bugs.freedesktop.org/show_bug.cgi?id=23489.

If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
https://help.launchpad.net/InterBugTracking.

------------------------------------------------------------------------
On 2009-08-24T11:26:27+00:00 Bugzi09-fdo-tormod wrote:

Created an attachment (id=28886)
test case

If for instance,
       glBegin(GL_LINES);
       glEnd();
is repeated (64 times here) mesa will crash with

Program received signal SIGFPE, Arithmetic exception.
0x0109d5a0 in vbo_exec_vtx_flush (exec=0x809fc98, unmap=0 '\0')

because exec->vtx.vertex_size = 0 and we get a division by zero. Not
that this is a useful construct, but it happens in some programs and did
not crash before.
http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/begin.html
says "Lines, triangles,      quadrilaterals, and polygons that       are
incompletely specified are not drawn."

The attached test program demonstrates the crash (it is based on the
example in http://glprogramming.com/red/chapter01.html :) )

Reply at: https://bugs.launchpad.net/mesa/+bug/346072/comments/14

------------------------------------------------------------------------
On 2009-08-24T11:45:13+00:00 Brian-paul wrote:

Fixed with commit b9b04872d526ed7955f647542399e110ace0325c.
This'll be in Mesa 7.5.1 and later.

Reply at: https://bugs.launchpad.net/mesa/+bug/346072/comments/15

------------------------------------------------------------------------
On 2009-08-25T00:47:57+00:00 Bugzi09-fdo-tormod wrote:

*** Bug 20850 has been marked as a duplicate of this bug. ***

Reply at: https://bugs.launchpad.net/mesa/+bug/346072/comments/18


** Changed in: mesa
   Importance: Unknown => Medium

-- 
solarwinds crashed with SIGFPE in vbo_exec_vtx_flush()
https://bugs.launchpad.net/bugs/346072
You received this bug notification because you are a member of Registry
Administrators, which is the registrant for Mesa.