From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
Subject: [Bug 56474] New: 3D app segfaults on NV46
Date: Sun, 28 Oct 2012 01:18:56 +0000
Message-ID:
Priority
medium
Bug ID
56474
Assignee
nouveau@lists.freedesktop.org
Summary
3D app segfaults on NV46
Severity
normal
Classification
Unclassified
OS
Linux (All)
Reporter
1o5g4r8o@gmail.com
Hardware
x86 (IA32)
Status
NEW
Version
9.0
Component
Drivers/DRI/nouveau
Product
Mesa
Created attachment 69169 [details]
dmesg
Debian Wheezy i386
Mesa 9.0-1
libdrm 2.4.39-1
xserver-xorg-video-nouveau 1.0.3
Attached dmesg.
supertuxkart segfaults on Debian. Attached backtrace.
21:16 < joi> try: "up; print res"
21:17 < gg0> (gdb) up
21:17 < gg0> #1 nv30_vbo_validate (nv30=0x94c2658) at nv30_vbo.c:239
21:17 < gg0> 239I PUSH_RESRC(push, NV30_3D(VTXBUF(i)), user ?
BUFCTX_VTXTMP : BUFCTX_VTXBUF,
21:17 < gg0> (gdb) print res
21:17 < gg0> $4 = (struct nv04_resource *) 0x0
21:35 < joi> gg0: try this one: http://bpaste.net/show/54017/
diff --git a/src/gallium/drivers/nv30/nv30_vbo.c
b/src/gallium/drivers/nv30/nv30_vbo.c
index 128457f..94febc3 100644
--- a/src/gallium/drivers/nv30/nv30_vbo.c
+++ b/src/gallium/drivers/nv30/nv30_vbo.c
@@ -226,6 +226,8 @@ nv30_vbo_validate(struct nv30_context *nv30)
user = (nv30->vbo_user & (1 << ve->vertex_buffer_index));
res = nv04_resource(vb->buffer);
+ if (!res)
+ continue;
if (nv30->vbo_fifo || unlikely(vb->stride == 0)) {
if (!nv30->vbo_fifo)
With patch above, stk doesn't produce core anymore and Xorg freezes.
So far, mesa 8 is better. I could use it even if often it crashes during kart
races. With mesa 9, races can't even start.
Further backtraces and system info available at http://bugs.debian.org/691292
Bug describes how it behaves on current Debian wheezy, Mesa 8.