Re: [linux-pm] [patch/rft 2.6.17-rc2] swsusp resume must not device_suspend()

["Rafael J. Wysocki" <rjw@sisk.pl>]

On Wednesday 26 April 2006 16:38, Alan Stern wrote:
> On Wed, 26 Apr 2006, Rafael J. Wysocki wrote:
> 
> > > Now, if you have specific examples of things that shouldn't be reset, that
> > > could be interesting.
> > 
> > The resume device and friends (ie. controller, bus, etc.).
> 
> I presume the freeze/reset we're talking about occurs immediately after 
> the memory snapshot has been read from the swap partition and immediately 
> before it is installed/activated.  (If occurs before the snapshot is read 
> in, then how would you actually manage to read it?)
> 
> So under these circumstances, how does it hurt anything to reset the 
> resume device rather than to freeze it?

It just shouldn't be necessary.  Actually I think the resume device shouldn't
be frozen too.

> > My point is that it need not be _necessary_ to reset all devices.  We should
> > reset only those which need to be reset.
> 
> > Of course every driver should handle this but that's not the point.  The point
> > is whether we should _force_ the reset on every device.
> 
> I'm not convinced that it hurts anything.  But in any case, it wouldn't
> hurt to follow Pavel's advice and add a flags field to pm_message_t.

Exactly.

Greetings,
Rafael


-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
linux-usb-devel@lists.sourceforge.net
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel