9.2-RELEASE broken on a netra X1 box.

[Marius Strobl]

On Wed, Oct 09, 2013 at 11:32:05AM +0000, Craig Butler wrote:
> Hello Folks
> 
> Trying out 9.2 RELEASE on one of our Netra X1 servers and something
> broke.
> 
> Freshly compiled and installed world and kernel.
> 
> Booting [/boot/kernel/kernel]...               
> jumping to kernel entry at 0xc0098000.
> Copyright (c) 1992-2013 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
>         The Regents of the University of California. All rights
> reserved.
> FreeBSD is a registered trademark of The FreeBSD Foundation.
> FreeBSD 9.2-RELEASE #0: Tue Oct  8 16:09:50 BST 2013
>     root at blueeye.lerwick.hopto.org:/usr/obj/usr/src/sys/GENERIC sparc64
> gcc version 4.2.1 20070831 patched [FreeBSD]
> real memory  = 1073741824 (1024 MB)
> panic: kmem_suballoc: bad status return of 3
> cpuid = 0
> KDB: stack backtrace:
> #0 0xc07d855c at kmem_suballoc+0x7c
> #1 0xc07d79ac at vm_ksubmap_init+0x12c
> #2 0xc0846f24 at cpu_startup+0xc4
> #3 0xc04b3e70 at mi_startup+0x1d0
> #4 0xc0098028 at btext+0x28
> Uptime: 1s
> 

Typically, this is caused by a bug in MI code which only triggers with
specific memory layouts depending on the exact machine model and certain
amounts of RAM, though. That's why it would be helpful if people would at
least test booting BETAs and RCs. It probably can be worked around by
limiting the memory employed via the hw.physmem tunable to something like
512 MB for that machine. I need to see whether I can upgrade my X1 to 1 GB
so I can reproduce it.

Marius