Re: keyboard slowdown regression in 2.5.32 (right .config) Re: FIXED in 2.5.29 Re: keyboard ONLY functions in 2.5.27 with local APIC on for UP

From: Vojtech Pavlik (vojtech@suse.cz)
Date: Sat Aug 31 2002 - 13:53:37 EST


On Sat, Aug 31, 2002 at 08:26:45PM +0200, bert hubert wrote:

> Vojtech, list, I think we may have a small regression in the keyboard
> support.
>
> In 2.5.27 my keyboard only worked when I turned on Local APIC on UP, which
> was fixed in 2.5.29 (original message below).
>
> In 2.5.32 I'm back to almost the exact same problem, but the APIC setting
> does not matter.
>
> It boots fine without keyboard support, which I had initially after make
> oldconfig (except no keyboard). When I turn on the keyboard support, just
> after 'Freeing unused kernel memory', my harddisk light starts to blink
> roughly once every .75 seconds and the boot proceeds *very* slowly.
> Furthermore, I can feel that the CPU is hard at work, the fan exhaust of my
> laptop gets pretty hot.
>
> Numlock does not react and keystrokes do not appear on the screen. I do see
> some keyboard related printk's early in the bootprocess but they are gone
> quickly and do not look like errors.
>
> This is the exact same behaviour I had with 2.5.27 and APIC *off*.
>
> 2.5.31 works fine. This is a nearly-completely-SiS laptop from a company
> called 'Gericom'.
>
> ahu@snapcount:/mnt/linux-2.5.32$ egrep 'KEY|INPUT' .config
> CONFIG_INPUT_KEYBOARD=y
> CONFIG_KEYBOARD_ATKBD=y
> CONFIG_INPUT_MOUSE=y
> CONFIG_INPUT_MISC=y
> CONFIG_INPUT_PCSPKR=y

How about I8042 support? Also enabled? If not, then the keyboard driver
isn't even touching the hardware.

> Let me know if there are further things I can try. I think I know where my
> nullmodem cable is, so I could try that.

Can you check with the attached patch? Or (better) Linus's current BK
tree?

-- 
Vojtech Pavlik
SuSE Labs


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