Re: hang on revivesa with dual core CPU

[David Brownlee <abs%NetBSD.org@localhost>]

On Mon, 6 Oct 2008, Bill Stouder-Studenmund wrote:

> On Thu, Oct 02, 2008 at 12:19:07PM +0100, David Brownlee wrote:
> >         I've been testing a current revivesa kernel (built from
> >         sources updated today) on several NetBSD 4.0_STABLE installs,
> >         and everything seems to be happy on the single core boxes
> >         (firefox3, gnash, pidgin, ktorrent3, apache, etc), but I've
> >         seen several hard lockups when running on an MP box (Thinkpad
> >         T60p Intel Core 2 T7400).
>
> Have you tried this with the -current libpthread and update recepie?

        I did, but apps failed with
        /usr/lib/pthread/libpthread.so.0: Undefined PLT symbol 
"_atomic_swap_ptr"
        Joerg passed across a tarball which should build under NetBSD 4.0,
        which I'm going to try next

> A lot of stuff changed in -current, and the MP hangs could be unrelated to
> SA specifically.
>
> Alternatively, some ddb debugging should be able to figure out what's
> wrong.

        Unfortunately it hangs hard, so I cannot get into DDB :(
        (This is with ttyE0 visible when it hangs)

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