Kernel panics?

[Ivan Voras]

On 11/04/10 12:35, Richard Morse wrote:
> Hi! I'm having a problem with an 8.1-RELEASE #0 amd64 machine.

Looks like too many different problem all at once. Almost certainly
there's a hardware problem somewhere. Try running memtest86


> Three weeks ago, it had a kernel panic, which I was too tired to properly capture. On reboot, I forgot to run fsck in single user mode; about 12-14 hours later it crashed complaining that the background file system checks were inconsistent.
> 
> A day later it crashed with a "server double fault"; I was unfortunately on the way to a meeting, along with all of my technical co-workers, so I wasn't able to see the screen, and it was being reported by someone who was poorly equipped to give a good report.
> 
> A few days later, it had hung (it didn't respond to input), and I needed to hard restart.
> 
> A few days later, the same thing happened.
> 
> Last weekend, on Friday evening it complained about the hard disk controller disappearing (at least, as far back as I was able to go in the screen buffer).
> 
> Saturday night, I finally got a kernel panic that I captured; after this, I turned on core dumps.
> 
> However, last night, it crashed again, and tried to write out a core, but didn't succeed.
> 
> The kernel panic from Saturday night was:
> 
>     panic: unknown cluster size
>     cpuid = 0
>     Uptime: 1h49m37s
>     Cannot dump. Device not defined or unavailable.
>     aac0: shutting down controller...
>     
>     Fatal trap 12: page fault while in kernel mode
>     cpuid = 9; apic id = 10
>     fault virtual address = 0x1d
>     fault code            = supervisor write data, page not present
>     ...
>     current process       = 12 (irq256: em0)
>     trap number           = 12
>     done
> 
> Last night's:
> 
>     Fatal trap 12: page fault while in kernel mode
>     cpuid = 9; apic id = 11
>     fault virtual address = 0x8098f90e
>     fault code            = supervisor read data, page not present
>     ...
>     current process       = 97530 (taper)
>     trap number           = 12
>     panic: page fault
>     cpuid = 9
>     Uptime: 3d21h24m57s
>     Physical memory: 12211MB
>     Dumping 2942MB:
> 
> Note that there was nothing after the "Dumping 2942MB:"; the cursor was sitting just after the colon. On reboot, it did not find any cores to save to disk (I did have to boot single user and fsck -y; is it possible that this interfered with the core dump? if so, how do I fix this?).
> 
> I tried, this morning, to run memtest86, however both 3.5 and 3.4 just give loud annoying beeps, not displaying anything on screen (not even a menu; once I get past the boot loader from the memtest86 cd, it just starts beeping).
> 
> Any suggestions?
> 
> Thanks,
> Ricky
> 
> 
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