From owner-freebsd-x11@FreeBSD.ORG  Fri Oct  4 11:29:03 2013
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Date: Fri, 4 Oct 2013 14:28:51 +0300
From: Ivan Klymenko <fidaj@ukr.net>
To: x11@FreeBSD.org, ports@FreeBSD.org
Subject: Xorg core dump after update xorg-server and xf86-video-intel
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Hello.

I have FreeBSD 10.0-ALPHA4 #0 r255945

ports revision: 329226

xf86-video-intel-2.21.15
xorg-server-1.12.4_3,1

I use the SNA acceleration: Option "AccelMethod" "SNA"

Xorg behaves very unstable after upgrade
ls -l /var/coredumps/ | grep Xorg
-rw-------  1 root  wheel  50524160  4 =D0=BE=D0=BA=D1=82 13:39 0.3157.Xorg=
.core
-rw-------  1 root  wheel  63332352  4 =D0=BE=D0=BA=D1=82 14:00 0.32702.Xor=
g.core
-rw-------  1 root  wheel  66543616  4 =D0=BE=D0=BA=D1=82 14:01 0.32844.Xor=
g.core
-rw-------  1 root  wheel  72032256  4 =D0=BE=D0=BA=D1=82 14:03 0.32988.Xor=
g.core
-rw-------  1 root  wheel  56549376  4 =D0=BE=D0=BA=D1=82 14:03 0.33350.Xor=
g.core
-rw-------  1 root  wheel  62160896  4 =D0=BE=D0=BA=D1=82 14:04 0.33543.Xor=
g.core
-rw-------  1 root  wheel  53837824  4 =D0=BE=D0=BA=D1=82 14:04 0.33736.Xor=
g.core
-rw-------  1 root  wheel  53751808  4 =D0=BE=D0=BA=D1=82 14:04 0.33905.Xor=
g.core
-rw-------  1 root  wheel  53747712  4 =D0=BE=D0=BA=D1=82 14:05 0.34043.Xor=
g.core
-rw-------  1 root  wheel  42508288  4 =D0=BE=D0=BA=D1=82 13:39 0.3407.Xorg=
.core
-rw-------  1 root  wheel  22478848  4 =D0=BE=D0=BA=D1=82 14:05 0.34189.Xor=
g.core

I rebuilt intel driver and xorg-server ports with -g option
gdb backtrace's full:
http://privatepaste.com/f81e7457bc
http://privatepaste.com/a8bd87908f
http://privatepaste.com/6bdea215fd
it's just three typical output bt full

I do not even know what to suggest.

I have not signed for x11 maillist - please
indicate the CC on me.

Thanks.