Re: wakeup_pmode_return jmp failing?

Pavel Machek
2004-12-06T13:35:15Z

Hi!

> Not sure who to direct this to. I've been trying to get acpi s3 to work
> on my pentium M laptop (tecra m2). Without the nvidia driver loaded, I
> can echo 3 > /proc/acpi/sleep and the machine does indeed suspend (power
> light throbs and all). However, when I try to wake up the thing, it
> would flash the bios screen and throw me back to grub.
>
> I've been investigating the code at arch/i386/kernel/acpi/wakeup.S, and
> have discovered that if I place a busy wait directory before the ljmpl
> to wakeup_pmode_return, that I indeed do see 'Lin' on the screen instead
> of the bios screen.
>
> The joke is, if I place a busy wait first thing after the
> wakeup_pmode_return label, it never gets executed and I get a regular boot.
>
> It would appear as though the jump from 16bit code into the 32bit code
> is failing and the bios is kicking in with a regular startup.

See archives of linux-acpi lists.
Pavel
--
People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!