On Fri 2008-02-01 13:16:08, Michael Tokarev wrote: > Pavel Machek wrote: > > On Fri 2008-02-01 00:41:06, Michael Tokarev wrote: > [] > >> With 2.6.24, it tries to suspend, saves pages to disk, > >> when prints this: > >> > >> ..Saving pages... done. > >> Sl > > It's actually "S|", not "Sl". > > >> Suspending console(s) > >> _ > >> > >> At this point, nothing more happens. It does not > >> react to keyboard or to any other external events, > > ..because the keyboard is USB-connected, and it shuts > down all USB devices. I'll try with PS/2 keyboard > (when I'll find one I had somewhere... ;) > > [] > > no_console_suspend (sp?), nohz=off, highres=off, and try with minimum > > config. > > no_console_suspend it is. Tried that, the "S|" thing is still > here, but instead of "Suspending console(s)" it now shows > progress of suspending other devices. The end result is > the same - finally it stops and sits here ad infinitum. > > nohz and highres are useless now, as I recompiled the kernel > without support for those, and without CPU_IDLE and other > fancy stuff, and disabled cpufreq just in case. > > What's minimum config? Should I turn off SMP (it's a dual-core > CPU by the way)? Something else? (I already removed most > driver modules when when trying suspend - only ones which are > absolutely necessary are left).
Disabling smp can't hurt, agreed. > I've read Documentation/power/tricks.txt. From that list, > I have the following: > > o all drivers are unloaded except disk and usb (keyboard) > o preempt is disabled (was never enabled) > o APIC IS in use. > o modules are in use. Is it worth to try module-less? > o vga text console - not even "vga" per se, - no framebuffers > and such, not even as modules. No "video mode switching > support" is enabled. > o only a few processes left, in like single-user mode. Try init=/bin/bash, too. > One other difference between 2.6.23 and 2.6.24 as I see here > is: 2.6.24 tells me about TSC unstability (when I load cpufreq > stuff), while 2.6.23 did not. This is about 64bit mode - with > 32bits, both switches from tsc to hpet, so in this regard, > 2.6.24 (with 32bits) is not different from 2.6.23 it seems > (i mean in relation with suspend issues, since 32bits .23 > mentioned tsc instability yet it suspended fine). > > So I'm.. stuck. :) Don't know where to go from here. git bisect is always an option. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- 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/
