Re: 2.6.10-mm2: swsusp regression [update]

From: Rafael J. Wysocki (rjw_at_sisk.pl)
Date: 01/08/05

  • Next message: Mariusz Mazur: "[ANNOUNCE] linux-libc-headers 2.6.10.0" 
    To: Pavel Machek <pavel@ucw.cz>
Date:	Sat, 8 Jan 2005 16:10:57 +0100

    On Saturday, 8 of January 2005 14:19, Pavel Machek wrote:
    > Hi!
    >
    > > > Thanks for pointing it out. I have adapted this patch to -mm2, but
    > > > unfortunately it does not fix the issue. Still searching. ;-)
    > >
    > > The regression is caused by the timer driver. Obviously, turning
    > > timer_resume() in arch/x86_64/kernel/time.c into a NOOP makes it go away.
    > >
    > > It looks like a locking problem to me. I'll try to find a fix, although
    > > someone who knows more about these things would probably do it faster. :-)
    >
    > (I do not have time right now, but...)
    >
    > ..you might want to look at i386 time code, they have common
    > ancestor, and i386 one seems to work.

    Well, I need the help of The Wise. :-)

    If I comment out only the modification of jiffies in timer_resume() in
    arch/x86_64/kernel/time.c (ie line 986), everything seems to work, but I get
    "APIC error on CPU0: 00(00)" after device_power_up(), which seems strange to
    me, because I boot with "noapic". On the other hand, if it's not commented
    out (ie jiffies _is_ modified in timer_resume()), the machine hangs solid
    after executing device_power_up() in swsusp_suspend().

    Right now I have no idea of what happens there, and it seems strange because
    in 2.6.10-mm1 the code in time.c is the same.

    Greets,
    RJW 

    -- 
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
		-- Lewis Carroll "Alice's Adventures in Wonderland"
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