Re: [REPOST] "apm: suspend: Unable to enter requested state" after 2.5.31 (incl. 2.6.0testX)

From: Charles Lepple (clepple_at_ghz.cc)
Date: 07/30/03

  • Next message: Petr Vandrovec: "Re: Turning off automatic screen clanking"
    Date:	Tue, 29 Jul 2003 21:38:25 -0400
    To: Stephen Rothwell <sfr@canb.auug.org.au>
    
    

    On Tuesday, July 29, 2003, at 09:05 PM, Stephen Rothwell wrote:

    > I may have missed this, but do you have the APIC or IO-APIC enabled?

    Not sure that I have one on this system... it's pre-i686 (Pentium MMX).

    I left the laptop at work, so I don't have dmesg output nearby.

    > The patch in question merely moved where the 0x40 descriptor was
    > installed
    > in the descriptor table.

    You mean it appears at a different table index? For some reason, I
    thought that was a different patch (but I can't seem to find anything
    else from that time period).

    [snip]
    > The base and limit parts of the descriptor get initialised at run time
    > by
    > the code:
    >
    > set_base(bad_bios_desc, __va((unsigned long)0x40 << 4));
    > _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4));
    >
    > These could be set statically, but it was easier to use the availble
    > macros.

    Do you think it's worth checking the initialized value of the
    bad_bios_desc fields in a 2.5 kernel with working APM? Or do you have
    any other ideas on where to look?

    thanks for taking the time to explain this,

    -- 
    Charles Lepple <ghz.cc!clepple>
    http://www.ghz.cc/charles/
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