[Bug 8450] New: BUG in radeon/drm kernel modules from git

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https://bugs.freedesktop.org/show_bug.cgi?id=8450          
     
           Summary: BUG in radeon/drm kernel modules from git
           Product: DRI
           Version: DRI CVS
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DRM modules
        AssignedTo: dri...@li...
        ReportedBy: ran...@ya...


Since the CVS repository doesn't seem to be being updated any more, I downloaded
the drm tree from git instead (as of 27th September). However, the radeon module
failed to initialise with 2.6.18-SMP-PREEMPT.

BUG: unable to handle kernel NULL pointer dereference at virtual address 00000040
 printing eip:
f8e2f460
*pde = 00000000
Oops: 0000 [#1]
PREEMPT SMP
Modules linked in: radeon drm pwc eeprom cpufreq_ondemand p4_clockmod
speedstep_lib nfsd exportfs ipv6 autofs4 nfs lockd sunrpc af_packet binfmt_misc
video thermal processor fan button ac lp parport_pc parport nvram video1394
raw1394 eth1394 compat_ioctl32 videodev v4l1_compat v4l2_common snd_usb_audio
snd_usb_lib snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul
snd_emu10k1 snd_rawmidi snd_ac97_codec snd_ac97_bus snd_seq_dummy ohci1394
snd_seq_oss snd_seq_midi_event snd_seq ieee1394 snd_pcm_oss snd_mixer_oss
ehci_hcd uhci_hcd snd_pcm snd_seq_device snd_timer snd_page_alloc snd_util_mem
snd_hwdep i2c_i801 e1000 pcspkr serio_raw psmouse snd soundcore e7xxx_edac
edac_mc ide_cd i2c_core intel_agp agpgart cdrom usbcore ext3 jbd
CPU:    2
EIP:    0060:[<f8e2f460>]    Not tainted VLI
EFLAGS: 00010246   (2.6.18 #2)
EIP is at radeon_driver_load+0x67/0x10a [radeon]
eax: 00000000   ebx: f70de400   ecx: 00000008   edx: f7e87d80
esi: 00000008   edi: f70de708   ebp: f7492800   esp: f5cd4ebc
ds: 007b   es: 007b   ss: 0068
Process modprobe (pid: 2808, ti=f5cd4000 task=f7fc4ab0 task.ti=f5cd4000)
Stack: f7492800 f8e42ef0 f7f15800 c01deb9c f8dd52ee f8e42200 f7f15800 fffffff4
       c2318d80 00000000 c025ce81 c0222a8b 00000000 00000000 f7fe9a00 00000000
       00000000 00000001 f8e42330 c01a1d57 00000001 f8e42330 f8e42304 f7f15800
Call Trace:
 [<c01deb9c>] __driver_attach+0x0/0x63
 [<f8dd52ee>] drm_get_dev+0x1bf/0x4b4 [drm]
 [<c025ce81>] _spin_unlock_irqrestore+0xf/0x23
 [<c0222a8b>] netlink_broadcast+0x23e/0x27f
 [<c01a1d57>] pci_match_device+0x13/0xb3
 [<c01deb9c>] __driver_attach+0x0/0x63
 [<c01a1e43>] pci_device_probe+0x36/0x57
 [<c01deafd>] driver_probe_device+0x42/0x8b
 [<c01debd7>] __driver_attach+0x3b/0x63
 [<c01de604>] bus_for_each_dev+0x33/0x55
 [<c01dea61>] driver_attach+0x11/0x13
 [<c01deb9c>] __driver_attach+0x0/0x63
 [<c01de317>] bus_add_driver+0x64/0xfd
 [<c01a1f92>] __pci_register_driver+0x58/0x74
 [<f8dd22ce>] drm_init+0xa6/0x102 [drm]
 [<c012f7fb>] sys_init_module+0x95/0x1c8
 [<c0102981>] sysenter_past_esp+0x56/0x79
Code: 00 89 f1 81 e1 ff ff 00 00 83 f9 0e 77 17 b0 01 d3 e0 a9 29 66 00 00 74 0c
81 ce 00 00 10 00 89 b3 04 03 00 00 8b 85 f0 02 00 00 <8b> 50 40 85 d2 74 09 89
e8 ff d2 83 f8 02 75 10 8b 85 c8 02 00
EIP: [<f8e2f460>] radeon_driver_load+0x67/0x10a [radeon] SS:ESP 0068:f5cd4ebc          
     
     
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