[PANIC]: 2.5.4x -> .48: Radeon driver sync problem

[Shawn Starr <spstarr@sh0n.net>]

When loading the radeon driver into pre-release X:

XFree86 Version 4.2.99.2 / X Window System
(protocol Version 11, revision 0, vendor release 6600)
Release Date: 14 November 2002

Monitor fails to sync and console is lost. I can still get into the machine 
fine via SSH, is this known? 


>From syslog (cleaned up) (what is PCI GART?)

[drm] AGP 0.99 on Unknown @ 0xf0000000 128MB
[drm] Initialized radeon 1.7.0 20020828 on minor 0
[drm:radeon_do_init_cp] *ERROR* PCI GART not yet supported for Radeon!
[drm:radeon_ati_pcigart_cleanup] *ERROR* no scatter/gather memory!
[drm:radeon_do_cleanup_cp] *ERROR* failed to cleanup PCI GART!
     Unable to handle kernel NULL pointer dereference at virtual address 
0000001c
printing eip
e08d6035
*pde = 1e422067
*pte = 00000000
Oops: 0000
CPU:    0
EIP:    0060:[<e08d6035>]    Not tainted
EFLAGS: 00013246
eax: 00000001   ebx: 00000000   ecx: 00000001   edx: fffffff2
esi: 00000000   edi: df1b6180   ebp: e08d77a0   esp: deedbf30
ds: 0068   es: 0068   ss: 0068
Process X (pid: 147, threadinfo=deeda000 task=df0d2140)
Stack: deedbf58 bffffb40 00000008 df12e000 00000000 df12e000 e08d7854 00000000
            bffffb40 00000008 00000001 00000001 df12e000 e08e3618 e08d120c 
de258cfc
            df3b0640 40086442 bffffb40 deeda000 40546440 df3b0640 ffffffe7 
40086442
Call Trace: [<e08d7854>]  [<e08e3618>]  [<e08d120c>][sys_ioctl+234/592]  
[syscall_call+7/11]
Code: 8b 43 1c 83 f8 18 0f 86 b7 00 00 00 8b 13 8b 4b 14 83 e8 18

Can't use ksymoops (busted compile with binutils 2.13.90.0.10 20021010 and  
GCC 3.2.1 20021118 (prerelease))

Can't use kksymoops as its commented out in Kconfig (i386 arch) ;-) and it 
doesnt seem to work uncommented ;(

Shawn.