Re: WWW Linux Sparc-32 SMP

From: Ville Herva (vherva@niksula.hut.fi)
Date: Mon Jun 19 2000 - 10:03:01 EST


On Mon, Jun 19, 2000 at 01:21:18PM +0300, you [Ville Herva] claimed:
> On Mon, Jun 19, 2000 at 11:04:35AM +0100, you [Alan Cox] said:
> > > Absolutely no error messages on the console, you could switch virtual consoles
> > > still, and get a login prompt. Whatever you typed would be echoed but you'd
> > > never get a password prompt.
> >
> > It is running kernel space but not user space, typically that means something
> > is spinning in kernel space.
> >
> > > Since there's no OOPS or other error messages spin_lock deadlock messages,
> > > I'm not sure what to make of this.
> >
> > Livelock probably. Does the sparc have an equivalent of the alt-sysrq stuff
> > we have on x86 ?
>
> AFAIK stop-a, if that's enabled in kernel config and /proc.

Oops! Of course I confused that because ultralinux faq says stop-a is
controllable via MAGIC_SYSRQ in /etc/sysconfig/init (for RedHat).

The faq says magic-sysrq functionality is available through these keys:

Control-ScrollLock - A listing of the current processes.
RightShift-ScrollLock - Memory Management information.
RightAltGraph-ScrollLock - SPARC Register Dump.

... and stop-a does propably what it does in Solaris. (Way too little
SparcLinux experience yet, but the SS5 box I've got here runs surprisingly
well.)

-- v --

v@iki.fi
        

        

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