samba 3.0.0 and spinlocks ?

Andrew Bartlett abartlet at
Tue Nov 25 21:09:50 GMT 2003

On Tue, 2003-11-25 at 20:52, Jens Osterkamp wrote:
> Hello everybody,
> recently i've been doing some performance testing with samba 3.0.0 and
> smbtorture on Linux on zSeries.

Tridge fixed up spinlocks recently - his commit message was on the lines
of 'spinlocks are still not a good idea, but at least they now work'. 
It would be interesting to see if you still get errors with current CVS.

As a general issue, spinlocks are dangerous as nobody is validating
them, and if an smbd dies, nobody ever removes it.  But as you have
noticed, they can certainly be fast...

Andrew Bartlett

Andrew Bartlett                                 abartlet at
Manager, Authentication Subsystems, Samba Team  abartlet at
Student Network Administrator, Hawker College   abartlet at
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