[rescue] Happy New Year! RIP, Sun/Solaris...

Peter Corlett abuse at cabal.org.uk
Wed Jan 5 10:06:11 CST 2011

On Wed, Jan 05, 2011 at 10:43:57AM -0500, Joshua Boyd wrote:
> I do not think that kernel stack size is the issue, unless your error
> messages specifically say that it is exhausted.

I've never encountered this kind of fault so I do not know what happens. I'd
have expected a bizarre kernel panic as important data structures got
clobbered by the stack.

> What I see in USB and cifs is that some unexpected event happens, or an
> expected event doesn't happen, or there is garbage in a response, and the
> whole thing throughs up its hands and quits with no way to restart except
> a reboot.

CIFS? That's nothing to do with NFS. CIFS is handled by the samba userspace
daemon. Samba has its own share of disgusting hacks, although most of those
are thanks to Microsoft.

> OTOH, maybe I don't need to care about context switches on a quad core
> machine.

Context switches are extremely expensive operations and best avoided. Your
shiny quad core box takes about the same time as a 6502 to do a context

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