[Hotplug_sig] [Lhms-devel] probe file does not show up in /sys

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 2006-06-06 at 19:12 -0700, Bryce Harrington wrote:
> On Tue, Jun 06, 2006 at 05:54:07PM -0700, Dave Hansen wrote:
> > On Tue, 2006-06-06 at 17:49 -0700, jnorman wrote:
> > > patched 2.6.17-rc5 with:
> > > 2.6.17-rc5-mm1
> > > patch-2.6.17-rc5-mm1-lxc2 
> > 
> > Well, first of all, lxc patches aren't for memory hotplug development ;)
> 
> Ah, could you recommend what we should be using?  Jake was just
> following the directions on http://lhms.sourceforge.net/howtouse.html
> which suggested those were the patches to use.

The document is wrong, or just nor specific enough.  

> > ia64 memory hotplug usually doesn't use probe files, but instead uses
> > ACPI.  The probe files are really only for debugging anyway, unless your
> > firmware doesn't provide any real memory hotplug interfaces.
> 
> Are there plans to make all systems use one approach or the other, or
> will there always be several ways to access it?  (So we can account for
> them when designing the testsuite.)

There will be several ways to access it.  ppc64 doesn't provide any
notifications to the kernel when a memory hotplug event occurs.  It is
all handled in userspace, so we need the probe file there.  

> Also, we haven't started looking at x386/x86_64 yet, but will they use
> ACPI or probes?

ACPI in production.  But, the probes are useful for testing.

-- Dave



[Index of Archives]     [Linux Kernel]     [Linux DVB]     [Asterisk Internet PBX]     [DCCP]     [Netdev]     [X.org]     [Util Linux NG]     [Fedora Women]     [ALSA Devel]     [Linux USB]

  Powered by Linux