Re: 2.6.18-rt1

Mark Knecht
2006-09-20T19:38:57Z

On 9/20/06, Ingo Molnar <mingo@elte.hu> wrote:
> I'm pleased to announce the 2.6.18-rt1 tree, which can be downloaded
> from the usual place:
>
> http://redhat.com/~mingo/realtime-preempt/
>

Hi Ingo,
I gave 2.6.18-rt2 a quick try. It compiled fine but crashed on
boot. I've no way to copy the screen. I can send along a digital photo
if the following isn't enough info.

QUESTION: Should I be able to run ati-drivers-8.28.8 with this kernel
or would I have to wait for ATI to put out a 2.6.18 compatible driver?
The current version does not emerge with 2.6.18-rt2.

CRASH INFO:

Unable to handle kernel null pointer derefernce at 0000000000000000 RIP
[< ffffffff80228ae4 >] __wake_up_common+0x24/0x68
PGD 3d6e7067 PUD 3d638067 PMD 0
Oops: 0000 [1] PREEMPT SMP
CPU
Modules linked in:
Pid: 5, comm:softirq-timer/0 Not tainted 2.6.18-rt2 #2

There is a bunch of debug stuff that follows and then finally a trace:

__wake_up
hrt_time_run_queue
run_timer_softirq
kthread
child_rip
DWARF2 unwinder stuck at child_rip

more stuff......

preempt count: 00000001
1-level deep critical nesting:

__spin_trylock

Not sure how much that will help you. Been awhile since I've sent
along crash reports. I'll have to ge a second Linux machine running to
do the console boot capture thing if you need it.

Hope this helps,
Mark