January 16, 2005

技術 :: NetBSD/sgimips on O2/R10k

(Originally posted on 2004-12-30 22:15)

I just re-installed NetBSD/sgimips 2.0 again on my O2/R10K because I failed to find working SGI system discs for it. Maybe someone can sell me a working set? 

netbsd% uname -a
NetBSD netbsd.local 2.0 NetBSD 2.0 (GENERIC32_IP3x) #0: Thu Dec  2 00:26:23 UTC 
2004  builds@build:/big/builds/ab/netbsd-2-0-RELEASE/sgimips/200411300000Z-obj/b
ig/builds/ab/netbsd-2-0-RELEASE/src/sys/arch/sgimips/compile/GENERIC32_IP3x sgim
ips
netbsd%
If anyone is interested in my installation procedure, I would be happy to post the detail.

Anyway, current NetBSD/sgimips on O2/R10K is only as good as "bootable" system due to special case on cache coherency and speculative executions (maybe stores I should say) on O2/R10K. Unlike R12K, the speculative executions cannot be disabled. The fixes would probably require complex compiler modifications according to the documents available on the Internet. However I do think that the kernel should take care of this. Current Linux/MIPS patches are still like some hacks rather than solution.

    These are several problems I confirmed on this system:

  1. Unstable RAM management, it crashes randomly (but rarely) on booting.
  2. Random crashes (on crime driver?)
  3. Unreliable SCSI driver
  4. Crashes on I/O surge (for example: 'tar zxpf pkgsrc.tar.gz' to NFS or SCSI partition)
  5. (This is not a bug though.) Not able to pass root device, boot device parameters to GENERIC kernel.

By mjhsieh at January 16, 2005 12:42 AM | Monthly Archives

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Hi Mengjuei, I want to try other os on O2, Please share your experiencement. Thank you very much. OY

OY
January 12, 2005 02:26 AM #

(Hooray! This NetBSD box broke my record, uptime 17 days and crashed...). I think this may be a good idea to post some post notes about the installation of netbsd on my O2 machine. Also a guest asked if I...
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