Re: core dumps on signals
H. Peter Anvin (hpa@transmeta.com)
Sun, 28 Feb 1999 11:00:27 -0800 (PST)
> Hi!
>
> > > > PWR n/a exit (normal systems would ignore by default)
> > >
> > > I don't think so; SIGPWR sent to init means it should shut down the
> > > system as soon as possible. If init dies, the system gets uncleanly
> >
> > Not exactly. SIGPWR is a "Power Restored" in SYS5 unix such as the NCR
> > tower. This is quite a common confusion.
> >
> > The way NCR use it for example on the old towers is that the box has
> > a battery (a big one), when the power goes off it switches to battery
> > and hibernates. This works well - we've carried machines between floors
> > without rebooting.
>
> This should be doable with linux and suspend patches. Yes, linux is
> now able to hibernate itself with suitable patches.
>
> As a side note, please DON'T recycle SIGUNUSED unless you really have
> to. Suspend patches are using it ;-).
>
Then please rename it.
-hpa
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