Re: Weird syslog stuff on UDB

[Bob McElrath <mcelrath draal physics wisc edu>]

On Mon, 2 Nov 1998, Brendan Miller wrote:

> 
> I recently installed RH5.1 on my new Digital UDB.  I'm still learning 
> the peculiarities of Alpha, but a few things caught my eye last time
> I reboot:
> 
>    Nov  2 19:55:30 molybdenum kernel: Probing PCI hardware.
>    Nov  2 19:55:30 molybdenum kernel: bios32.sio_fixup: weird, device 8086:0484 coming in on slot 7 has no irq line!!
> 
> Is this something I should care about?
> 
>    Nov  2 19:55:30 molybdenum kernel: Calibrating delay loop.. ok - 162.53 BogoMIPS
> 
> Now this is indeed strange.  When I boot the kernel as installed by RH,
> I thought I got 164.53 BogoMIPS.  Moreover, when MILO is doing its
> bootstrap thing before it unzips the kernel on my hard disk and begins
> executing it, it reports 164.53 BogoMIPS also.  Why only 162.53 on my 
> self-compiled version (to get sound support)?
> 
>    Nov  2 19:55:30 molybdenum kernel: Partition check:
>    Nov  2 19:55:30 molybdenum kernel:  sda:kernel: unaligned trap at fffffc00003a09b4: fffffc00000581be 28 1
>    Nov  2 19:55:30 molybdenum kernel: kernel: unaligned trap at fffffc00003a09c8: fffffc00000581c2 28 2
>    Nov  2 19:55:30 molybdenum kernel: kernel: unaligned trap at fffffc00003a09b4: fffffc00000581ce 28 1
>    Nov  2 19:55:30 molybdenum kernel: kernel: unaligned trap at fffffc00003a09c8: fffffc00000581d2 28 2
>    Nov  2 19:55:30 molybdenum kernel:  sda1 sda2 sda3 sda4 < sda5 sda6 sda7 >
> 
> This is also new since I built and booted my own kernel.  The stock RedHat 
> one did not do this.  Now I know that "unaligned traps" will occur every
> once in a while, and that somewhere it said this is no problem, but why
> this trap on the partition check when the RedHat-supplied kernel does not
> do this?

I think redhat disabled the reporting of unaligned traps.  (I even commented
them out when I compiled my kernel).  It's a good way to identify binaries
that really need to be recompiled.  fsck is one of the famous ones...just
get a new version under RedHat and it'll be fine.

What kernel version are you using?

-- Bob

  ./'^`\._./'~`\._./'~`\._./'~`\._./'#`\._./'~`\._./'~`\._./'~`\._./'^`\.
 / Rube Goldberg? Bah! Amateur! I give you..Windows 98! Linux everywhere \ 
| Linux, because everyone's work is mission critical.   ANYTHING inside.  |
|_Bob McElrath (mcelrath@wisconsin.cern.ch) Univ. of Wisconsin at Madison_|
  \.___________________________________________________________________./