On 06/05/2012 3:08 PM, David Daney wrote:
> On 06/05/2012 12:00 PM, Jim Faulkner wrote:
>> Hi all, I haven't been able to boot any kernels after linux 3.2 on my
>> SGI O2. I've tried linux-3.3.5 and linux-3.4.0, but neither would boot.
>> Unfortunately I don't have further information such as a kernel panic,
>> since I don't get any video output after the kernel is loaded. I've
>> attached my linux-3.4 .config. Anybody know what patches I might need
>> to get the latest kernels booting on this system?
>>
>
> I have had problems as well.
>
> Someone should configure a serial console and early printk to see if they
> can see what is happening.
Early printk on O2 systems probably has the same issues as on IP22/IP28
where it's overwriting PROM memory somewhere. The system will hang very
early in the bootmem allocator if you kludge early printk to work on these
systems:
System Maintenance Menu
1) Start System
2) Install System Software
3) Run Diagnostics
4) Recover System
5) Enter Command Monitor
Option? 5
Command Monitor. Type "exit" to return to the menu.
> $ba
Setting $netaddr to 192.168.1.12 (from server )
Obtaining from server
5305628+400900 entry: 0x80009920
Initializing cgroup subsys cpu
Linux version 3.4.4-mipsgit-20120623 (root@helcaraxe) (gcc version 4.6.2
(Gentoo 4.6.2 p1.3, pie-0.5.0) ) #2 Sat Jun 23 15:20:20 EDT 2012
ARCH: SGI-IP32
PROMLIB: ARC firmware Version 1 Revision 10
CRIME id a rev 1 at 0x0000000014000000
CRIME MC: bank 0 base 0x0000000000000000 size 128MiB
CRIME MC: bank 1 base 0x0000000008000000 size 128MiB
CRIME MC: bank 2 base 0x0000000050000000 size 128MiB
CRIME MC: bank 3 base 0x0000000058000000 size 128MiB
bootconsole [early0] enabled
CPU revision is: 00002733 (RM7000)
FPU revision is: 00002720
Checking for the multiply/shift bug... no.
Checking for the daddiu bug... no.
Determined physical RAM map:
memory: 0000000010000000 @ 0000000000000000 (usable)
memory: 0000000010000000 @ 0000000050000000 (usable)
Zone PFN ranges:
Normal 0x00000000 -> 0x00060000
Movable zone start PFN for each node
Early memory PFN ranges
0: 0x00000000 -> 0x00010000
0: 0x00050000 -> 0x00060000
I tried chasing this down once, years ago, and it was triggered by a pointer
to a function in a struct suddenly becoming NULL. That was back in 2.6.15
(or .14?), so no idea if the same issue is causing it. Most likely.
--
Joshua Kinard
Gentoo/MIPS
kumba@xxxxxxxxxx
4096R/D25D95E3 2011-03-28
"The past tempts us, the present confuses us, the future frightens us. And
our lives slip away, moment by moment, lost in that vast, terrible in-between."
--Emperor Turhan, Centauri Republic
