SMP and kernel

[Roger Oberholtzer]

How many out there are using a Linux kernel compiled with SMP support on a
non-SMP (one processor) system?

We have, over the last year or so, found numerous problems when doing so.
Anyone else.

Problems encountered with SMP was compiled into the kernel that went away
when it was compiled out:

1. Serial port providing continuous data suddenly begins reporting
incorrect info on available data when run asynchronously (SIGIO).

2. Firewire disks causing kernel panic on system boot.

3. Continuously active TCP ports suddenly going 'quiet', when data is
indeed available.

Adding the 'nosmp' directive to the kernel command line offers no joy.
Only a compile without SMP solves these things. Every time.

I have been looking for a coherent thread about this that does not just
end with someone claiming the user is an idiot. I make mistakes, but I
know a trend when I see one.

This is just a query. Am I alone? Anyone else having issues here? Or know
of anyone making similarly bizarre claims?

(I would discuss kernel versions here, but I am not sure it is a simple
indicator. Also, the systems that show the problems have been dissimilar.)


--
Very Cloudy Stockholm
Roger Oberholtzer