Wayne Witzke <[EMAIL PROTECTED]> writes:

> Lowell Gilbert wrote:
> > Wayne Witzke <[EMAIL PROTECTED]> writes:
> >
> >>I'm a little confused...  I thought I had RELENG_5_4.  "uname -a" says:
> >>
> >>FreeBSD wlaptop 5.4-RELEASE FreeBSD 5.4-RELEASE #1: Thu Oct  6
> >>21:18:29 EDT 2005
> >>      [EMAIL PROTECTED]:/usr/obj/usr/src/sys/WLAPTOP  i386
> >>
> >>Isn't this RELENG_5_4?
> > It was, but some patches have been applied since the release was
> > made.  I was suggesting RELENG_5, not RELENG_5_4; in other words, the
> > branch that will eventually become the 5.5 release.
> 
> I'll see if I can't figure out how to do this, then.  I had no idea
> that I wasn't running the most current.

What you are running is the more recent release.  But FreeBSD's
developers have continued to modify code in the six months or so since
then.  

> >>Lowell Gilbert wrote:
> >
> >>>>Is there anything that I can do to capture more information the next
> >>>>time my computer reboots spontaneously?
> >>>
> >>>Try to get a crash dump.  There's more information on it in the
> >>>Handbook.  And some related information on panic analysis (if you can
> >>>get it to that point) in the FAQ.
> >>>
> >>
> >>I'll try that, it doens't sound too difficult.  Just so I know, if I
> >>was going to see a kernel panic message, I'd be seeing one before the
> >>computer reboots, right?
> > I thought that was what you were describing in earlier messages.
> 
> I'm *NOT* getting anything of this form (from the FAQ):
> 
>       Fatal trap 12: page fault while in kernel mode
>       fault virtual address   = 0x40
>       fault code              = supervisor read, page not present
>       instruction pointer     = 0x8:0xf014a7e5
>       stack pointer           = 0x10:0xf4ed6f24
>       frame pointer           = 0x10:0xf4ed6f28
>       code segment            = base 0x0, limit 0xfffff, type 0x1b
>                               = DPL 0, pres 1, def32 1, gran 1
>       processor eflags        = interrupt enabled, resume, IOPL = 0
>       current process         = 80 (mount)
>       interrupt mask          =
>       trap number             = 12
>       panic: page fault
> 
> All I get is the single line error message in the system log:
> 
> acd0: unknown transfer phase
> 
> and then the computer drops to a POST and reboots.  I see nothing on
> my screen between the error and the POST.

Ah.  A spontaneous reboot, not a panic.  Sorry I misunderstood.

> One of the diagnostic steps that the FAQ mentions is to trace the
> instruction pointer.  My assumption was that if the system was going
> to give me a message like that, I'd see it before the POST, but I
> wanted to make sure that I didn't need to be looking for that message
> in a log somewhere, or changing a configuration option somewhere to
> make the system generate an error message of that form, because I
> definitely don't see that before the POST.

A debugging kernel may help.  

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