On Wed, Sep 20, 2006 at 10:52:32PM -0400, Amos Waterland wrote:
> On Wed, Sep 20, 2006 at 07:20:54PM -0400, Amos Waterland wrote:
> > On Wed, Sep 20, 2006 at 11:35:51AM -0500, Hollis Blanchard wrote:
> > > On Tue, 2006-09-19 at 20:04 -0400, Amos Waterland wrote:
> > > > I am seeing this when loading dom0 now on JS21:
> > > > 
> > > > (XEN) *** LOADING DOMAIN 0 ***
> > > > (XEN) Assertion 'entry->next->prev == entry' failed, line 92 ...
> > > > (XEN) BUG at /home/apw/devel/xen/xen.hg/xen/include/xen/list.h:92
> > > > 
> > > > I am using latest Xen and Linux.
> > > 
> > > I cannot reproduce; I successfully started three domUs before exhausting
> > > my Maple's memory.
> > 
> > It seems that this bug only fires on JS21's running the latest 
> > SLOF.  I can boot the exact same binary image of Xen and Linux on a JS21
> > running the old SLOF and things work fine.
> 
> I take this back.  I flashed a known-good image of SLOF on the new JS21
> and the same assertion fires.  
> 
> This JS21 has 8GB of RAM, and I think that may be exposing a problem 
> in SLOF or Xen.

Here is the backtrace:

(XEN) Assertion 'entry->next->prev == entry' failed, line 92, file 
/home/apw/devel/xen/xen.hg/xen/include/xen/list.h
(XEN) BUG at /home/apw/devel/xen/xen.hg/xen/include/xen/list.h:92
(XEN) [00000000004639A0] 0000000000431BC8 .__bug+0x74/0x8c (unreliable)
(XEN) [0000000000463A40] 000000000041738C .list_del+0x6c/0x104
(XEN) [0000000000463AC0] 0000000000417044 .alloc_heap_pages+0x140/0x28c
(XEN) [0000000000463B60] 0000000000418990 .alloc_domheap_pages+0x14c/0x4ec
(XEN) [0000000000463C40] 0000000000441924 .allocate_extents+0x74/0x108
(XEN) [0000000000463CF0] 0000000000438E64 .construct_dom0+0x298/0xbcc
(XEN) [0000000000463E90] 00000000004581F0 .__start_xen+0x56c/0x640
(XEN) [0000000000463F70] 0000000000458360 .__start_xen_ppc+0x9c/0xbc
(XEN) [0000000000464000] 0000000000400138 _start+0x38/0x3c


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