Re: [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 3

Jan De Luyck
2005-08-04T05:34:14Z

On Thursday 04 August 2005 07:07, Con Kolivas wrote:
> On Thu, 4 Aug 2005 03:09 pm, Jan De Luyck wrote:
> > On Wednesday 03 August 2005 07:59, Con Kolivas wrote:
> > > This is the dynamic ticks patch for i386 as written by Tony Lindgen
> > > <tony@atomide.com> and Tuukka Tikkanen
> > > <tuukka.tikkanen@elektrobit.com>. Patch for 2.6.13-rc5
> >
> > On a weird sidenote: my synaptics touchpad seems to not-like dyntick very
> > much. When starting with a dyntick enabled kernel I get when psmouse.ko
> > is loaded:
> >
> > Aug 4 06:45:47 precious kernel: Synaptics claims to have extended
> > capabilities, but I'm not able to read them.<3>Unable to initialize
> > Synaptics hardware. Aug 4 06:45:47 precious kernel: input: PS/2
> > Synaptics TouchPad on isa0060/serio1
> >
> > subsequently, X fails to start too (touchpad is set as corepointer)
> >
> > reloading the module right then and there solves the problem:
> >
> > Aug 4 06:47:47 precious kernel: Synaptics Touchpad, model: 1, fw: 5.8,
> > id: 0x9d48b1, caps: 0x904713/0x4006 Aug 4 06:47:47 precious kernel:
> > input: SynPS/2 Synaptics TouchPad on isa0060/serio1
> >
> > Also, booting the same (but non-patched) kernel gives me a clean boot:
> >
> > Aug 4 06:56:42 precious kernel: Synaptics Touchpad, model: 1, fw: 5.8,
> > id: 0x9d48b1, caps: 0x904713/0x4006 Aug 4 06:56:42 precious kernel:
> > input: SynPS/2 Synaptics TouchPad on isa0060/serio1
> >
> > This is constantly reproducable for me. I guess some timing issue
> > somewhere?
>
> Did you try without the apic option or disable it at runtime? The apic
> option is proving more problems than not so far for people that have tried
> it.

The above was with apic enabled. With apic disabled, same story tho different
boot-time message:

$ cat /sys/../state
suitable: 1
enabled: 1
apic suitable: 1
using APIC: 0

dmesg gives:
Unable to query Synaptics hardware.
input: PS/2 Synaptics TouchPad on isa0060/serio1

and X refuses to start. Same resolution, just reload psmouse.

Jan
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