[ 8481.477] 3: /usr/bin/X (_CallCallbacks+0x3e) [0x8074e1e] [ 8481.477] 4: /usr/bin/X (WriteToClient+0x267) [0x80a7607] [ 8481.477] 5: /usr/lib/xorg/modules/extensions/libdri2.so (ProcDRI2WaitMSCReply+0x62) [0x302bf2] [ 8481.477] 6: /usr/lib/xorg/modules/extensions/libdri2.so (DRI2WaitMSCComplete+0x75) [0x300fc5]
This is a duplicate of bug 774978, which has a fix for testing in comment 25.
[ 8481.477] 3: /usr/bin/X (_CallCallbacks +0x3e) [0x8074e1e] 0x267) [0x80a7607] xorg/modules/ extensions/ libdri2. so (ProcDRI2WaitMS CReply+ 0x62) [0x302bf2] xorg/modules/ extensions/ libdri2. so (DRI2WaitMSCCom plete+0x75) [0x300fc5]
[ 8481.477] 4: /usr/bin/X (WriteToClient+
[ 8481.477] 5: /usr/lib/
[ 8481.477] 6: /usr/lib/
This is a duplicate of bug 774978, which has a fix for testing in comment 25.