Bug 14347

Bernhard R. Link and Adam Cécile (Le_Vert) both observed that the sunffb driver fails to initialize on their machine with both Xserver 1.3 and 1.4.

Bernhard has a Creator/Creator3D board and debugged this in details in http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=455313
He says the crash occurs when the first client disconnects.

Adam has a SunBlade 1000 with two Sun Elite3D (same problem with a single board), log available at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=463794

Here's a backtrace:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xf7fce6b0 (LWP 10150)]
0xf78c94b4 in FFBDacSaveScreen (pFfb=0xf7d3b928, mode=0)
     at ../../src/ffb_dac.c:535
535	  tmp = DACCFG_READ(dac, FFBDAC_CFG_TGEN);  /* Get the timing information */
(gdb) bt full
#0  0xf78c94b4 in FFBDacSaveScreen (pFfb=0xf7d3b928, mode=0)
    at ../../src/ffb_dac.c:535
	tmp = 8192
	dac = (ffb_dacPtr) 0x0
#1  0xf78cc58c in FFBSaveScreen (pScreen=0x291ca8, mode=0)
    at ../../src/ffb_driver.c:1013
No locals.
#2  0xf78cba4c in FFBScreenInit (scrnIndex=0, pScreen=0x291ca8, argc=2, argv=0xffe59db4) at ../../src/ffb_driver.c:719
	pScrn = (ScrnInfoPtr) 0x1fb718
	pFfb = (FFBPtr) 0x1fc790
	ret = 1874096
	afb_fem = 655488
	visual = (VisualPtr) 0x1b96b4
#3  0x0003c098 in AddScreen (pfnInit=0xf78cb4a0 <FFBScreenInit>, argc=2, argv=0xffe59db4) at ../../dix/main.c:769
	i = 0
	scanlinepad = <value optimized out>
	format = <value optimized out>
	depth = <value optimized out>
	bitsPerPixel = 32
	k = <value optimized out>
	pScreen = (ScreenPtr) 0x291ca8
#4  0x000732a8 in InitOutput (pScreenInfo=0x1eb050, argc=2, argv=0xffe59db4)
    at ../../../../hw/xfree86/common/xf86Init.c:850
	i = 0
	j = <value optimized out>
	k = <value optimized out>
	scr_index = 2011216
	modulelist = <value optimized out>
	optionlist = (pointer *) 0xffe597e8
	layout = (screenLayoutPtr) 0x1c9800
	screenpix24 = <value optimized out>
	pix24 = <value optimized out>
	pix24From = <value optimized out>
	autoconfig = 1873920
	generation = 2
#5  0x0003c960 in main (argc=2, argv=0xffe59db4, envp=0x1)
     at ../../dix/main.c:369
	i = <value optimized out>
	error = -134346768
	alwaysCheckForInput = {0, 1}