MMU MISS on boot
807559Jul 13 2001 — edited Jul 13 2001On boot up now I get Fast Data access: MMU MISS and then the OK prompt. Anyone know what is wrong or how to fix it without a reinstall. I can boot cdrom. Here are the details.
I was doing CAD work one day and the computer started slowing down and mixing up images on the screen like a windows computer does when it freezes. I was kicked out to the command line that you get on boot up , with the correct prompt "calvin%" but when I tried typing, each character I typed was represented by about a dozen characters of garbage. So I killed the power and rebooted. I got an error that said "Fast Data access MMU MISS". I was told that was the Memory module unit so I pulled out 1 pair of ram leaving two 16MB's, the same problem. Replaced those with the two 32MB's still the same problem. I put all 96 MB of ram back in and pulled the main Hard Drive. Now I get "Can't open boot device" as the error message. put the HD back in and after the MMU MISS error at the "OK" prompt I type "boot cdrom" and then solaris loads off of the cd. I go into format and analyze the main HD after mounting it and it shows two bad areas on the HD. I try to fix it, but it then says they don't appear to be bad. I tell it to fix it anyways and reanalyze the HD and the same two spots are bad. Try to reboot and get the same MMU MISS error.
Here is the entire boot up display:
SC Control: EWP:0 IAP:0 FATAL:0 WAKEUP:0 BXIR:0 BPOR:0 SXIR:0 SPOR:1 POR:0
Probing Memory bank #0 16+16=32MB
Probing Memory bank #1 32+32=64MB
Probing Memory bank #2 0+0=0MB
Probing Memory bank #3 0+0=0MB
Probing :/sbus@1f,0 at 0,0 Nothing There
Probing :/sbus@1f,0 at 1,0 dma esp sd st
Probing :/sbus@1f,0 at 2,0 cg six
(colored Sun logo here)
Sun Ultra 1 SBUS (ultra Sparc 143 MHz) Keyboard present Open Boot 3.1 96 MB memory instaled, Serial #******* Ethernet address *:*:**:*e:d*:c*, Host ID:***ed*c*
Boot Device: disk File and args:
Loading ufs-file-systemn package 1.4 04 Aug 1995 13:02:54
FCode UFS Reader 1.6 04 Aug 1995 13:01:58
Loading :/Platform/sun4u/ufsboot
Fast data access MMU Miss
OK
(that is with the Hard drive installed, without it is the same exactly until the boot device line, it goes:)
Boot device: disk File and args:
Evaluating: boot
Can't open boot device
OK