Hi. On Mon, 2007-02-12 at 00:38 +0100, Willy Tarreau wrote: > On Mon, Feb 12, 2007 at 10:18:42AM +1100, Nigel Cunningham wrote: > [snip] > > > Hmm sorry, but we don't have the same usages of notebooks. For no reason > > > would I keep documents open, for two reasons : > > > > > > - when I shutdown my notebook, it is to move from one customer to > > > home/company/another customer. There's no related work anyway, the > > > network will have changed and I'll have to switch nearly all of my > > > apps anyway. So using suspend just to save one reboot is not worth > > > it (for me) IMHO. > > > > The network configuration utilities can help there. In addition, > > Suspend2 preserves the commandline you used to boot with > > (/sys/power/suspend2/resume_commandline), so you can use a combination > > of slightly varying grub entries (I have one for not starting ath0 and > > one for starting it) and scripts to do different things in different > > environments. The resume_commandline is writable, so can be cleared > > after usage if there were anything sensitive there. > > OK, I see there are features to make life easier when I decide to use > suspend. But it looks like that using suspend is the goal and dealing > with the constraints is a lot of work and I'm still far from being > convinced that it would provide me advantage.
Ok. I don't feel like I have to convince everyone :) > > > - I would certainly not keep open documents that are on crypted FS > > > while I travel. Otherwise, it would be a total waste of time to > > > enter my passphrase everytime I need to access them ! Some might > > > argue that it would save me a lot of time, providing me with the > > > ability to type my passphrase only once a month, but that's not > > > what I'm looking for :-) > > > > People are using Suspend2 with encryption today (I'm not sure about > > uswsusp). Some of them have set things up so you need to use a > > passphrase or usb key to resume, and the image itself is of course > > encrypted too. > > Unless I'm mistaken, I have to type the passphrase twice then : > - once at suspend > - once at resume > > which is once more per "boot" than what I'm doing on loop-aes. I'm not sure. I don't use encryption myself, so I don't understand all the fine details. I just know that there are people out there using encryption, loop-aes, dmsetup and all that sort of stuff. I don't have to worry about it because they use an initrd/ramfs to do whatever they need to do to provide access to the device on which the image is found, then echo /dev/whatever_funny_device > /sys/power/suspend2/resume2 echo > /sys/power/suspend2/do_resume > > You could also close the document and not the app. Or both and just get > > the benefit of having the app in page cache post-resume. > > I'm not much convinced by the advantage of reading 500 MB on disk to have > emacs in hot cache :-) Neither am I! Presumably you'd have a lot more than emacs in there though :) You could always switch to vim! (*ducks*) Regards, Nigel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
