Kernel Bug Tracker – Bug 15736
Radeon crashes booting after enabling KMS
Last modified: 2010-07-06 17:31:14 UTC
Created attachment 25927 [details]
full kernel message log up and including the oops
my notebook has a
01:00.0 VGA compatible controller: ATI Technologies Inc RV350 [Mobility Radeon 9600 M10].
When I try booting with video=radeon:modeset=1, the system oopses and freezes with
[ 12.501727] Linux agpgart interface v0.103
[ 12.574951] [drm] Initialized drm 1.1.0 20060810
[ 12.670625] [drm] radeon kernel modesetting enabled.
[ 12.730384] ACPI: PCI Interrupt Link [C0C1] enabled at IRQ 10
[ 12.799058] radeon 0000:01:00.0: PCI INT A -> Link[C0C1] -> GSI 10 (level, low) -> IR
[ 12.900102] [drm] radeon: Initializing kernel modesetting.
[ 12.968061] [drm] register mmio base: 0x90400000
[ 13.023221] [drm] register mmio size: 65536
[ 13.073585] [drm] GPU reset succeed (RBBM_STATUS=0x00000140)
[ 13.141231] [drm] Generation 2 PCI interface, using max accessible memory
[ 13.222395] BUG: unable to handle kernel NULL pointer dereference at 00000040
[ 13.226373] IP: [<f81c082b>] radeon_agp_init+0x19/0x2cf [radeon]
[ 13.226373] *pde = 00000000
[ 13.226373] Oops: 0000 [#1] PREEMPT SMP
(full kernel message log obtained via serial console is attached).
Problem is that the agpgart module isn't loaded before drm.
Really? The log doesn't contain the string "drm" before "Linux agpgart interface v0.103"?
This doesn't happen on my system any more with 2.6.34 (probably even with an earlier version).
Marking it as resolved