Re: [OT] Major Clock Drift

[Andrew Morton]

Alan Cox wrote:
> 
> > >                     queued_writes=1;
> > >                     return;
> > >             }
> > >     }
> >
> > Unfortunately, that means that if machine crashes in interrupt, it may
> > "loose" printk message. That is considered bad (tm).
> 
> The alternative is that the machine clock slides continually and the machine
> is unusable. This is considered even worse by most people

Neither.  I was going to dust off my enhanced "bust_spinlocks"
patch which sets a little flag when we're doing an
oops, BUG(), panic() or die().  If the flag
is set, printk() just punches through the lock.