Unresponsive after dtrace

[John Birrell]

On Sun, Aug 31, 2008 at 06:35:16AM -0500, Wes Morgan wrote:
> I know this has been reported already, but I want to give a "me too". 
> After installing a new world and kernel from the tree yesterday afternoon, 
> I let my system run all night. This morning everything was extremely 
> sluggish and unresponsive. According to top, which I thankfully left 
> running, processes were going in and out of "*kmem_" (obviously 
> truncated). CPU usage was 80+% system and load averages were around 5.4. 
> The only changes I made to my system besides upgrading were to include the 
> options KDB, DDB and STACK in my kernel for zfs functionality. 
> Unfortunately, I cannot try without those options since my root is zfs. 
> Booting a kernel from 8/20 works fine.

That's not good news. :-(

I think I'll have to look at a partial back out of the ZFS changes now.

--
John Birrell