MFC wishlist

[Sean]

Steve Kargl wrote:
> On Sat, Jan 08, 2005 at 11:07:07AM +0800, Xin LI wrote:
> 
>>On Fri, Jan 07, 2005 at 04:55:40PM -0800, Steve Kargl wrote:
>>
>>>On Sat, Jan 08, 2005 at 01:11:40AM +0100, Ivan Voras wrote:
>>>
>>>>It's been a while now and (judging from this list at least), people are 
>>>>not complaining about ULE, so maybe (with re@ approval) the fix & 
>>>>supporting infrastructure could be brought to RELENG_5?
>>>>
>>>
>>>That's not a good idea.  I can lock up ULE+PREEMPTION on
>>>a dual amd64 system within 30 minutes.  The system is
>>>runnnig X11 and normally firefox (or other threaded
>>>app) and it simply freezes.  No panic.  No keyboard
>>>response.  Nothing.  
>>
>>This is observed in pre-5.3RELEASE CURRENT, but I thought Jeff has
>>already fixed it in -CURRENT.  I don't have dual amd64 system to do
>>such experiments, are you sure you are talking about the latest
>>6-CURRENT, or just 5.3?
>>
> 
> 
> Yes, I'm talking about 6-CURRENT.  My last kernel/world build is
> 04 Jan 05.  I can only invoke the problem with X11 running, and
> I currently don't have a serial console on this system.  I'm
> guessing that I hit a deadlock (or livelock).
> 
I also have a dual amd64 and 6-CURRENT and had all sort of problems when 
I tried ULE.

Sean