Re: FreeBSD PV i386 panics

2011-07-26 Thread Colin Percival
On 07/26/11 11:35, Sean Bruno wrote:
 I assume then, that the i386 PV instance cannot do more than 1 CPU at
 this time?

Correct.  SMP support was clearly started but never completed.

 I note that if I scale the i386 PV Xen kernel past 855MB, I get an insta
 panic at boot.  I assume that there's a hard limit on the amount of RAMS
 we can use here?

There's a problem somewhere in FreeBSD's PV machine init code, but I haven't had
an opportunity to track it down yet.  I hope to look at this some time soon (if
I can access the xen box in the cluster?) but I've been swamped lately.

-- 
Colin Percival
Security Officer, FreeBSD | freebsd.org | The power to serve
Founder / author, Tarsnap | tarsnap.com | Online backups for the truly paranoid
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Re: FreeBSD PV i386 panics

2011-07-26 Thread Sean Bruno
On Tue, 2011-07-26 at 11:58 -0700, Colin Percival wrote:
 On 07/26/11 11:35, Sean Bruno wrote:
  I assume then, that the i386 PV instance cannot do more than 1 CPU at
  this time?
 
 Correct.  SMP support was clearly started but never completed.
 
  I note that if I scale the i386 PV Xen kernel past 855MB, I get an insta
  panic at boot.  I assume that there's a hard limit on the amount of RAMS
  we can use here?
 
 There's a problem somewhere in FreeBSD's PV machine init code, but I haven't 
 had
 an opportunity to track it down yet.  I hope to look at this some time soon 
 (if
 I can access the xen box in the cluster?) but I've been swamped lately.
 

Yup, you're on my list to get access today.  I'll get kerberos up and
running on the hypervisor so you can screw around in a bit.

Sean

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