Re: booting linux-3.3 or linux 3.4 on an SGI O2?
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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
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