Re: ThinkPad T400 : should kernel option "reboot=pci" be hard coded ?

[Toralf Förster]

Hi,

Matthew Garrett wrote at 16:11:03
> On Mon, Jun 07, 2010 at 11:22:21AM +0200, Toralf Förster wrote:
> > Since some kernel version (IIRC since 2.6.31) it is necessary to boot the
> > linux kernel with that option to prevent an extra 9 seconds delay during
> > reboot.
> > I found this tip on the LKML -and now I'm wondering whether this option
> > should be hard coded in the kernel sources b/c it seems to be necessary
> > for current kernels too.
> 
> No, the best thing to do would be to figure out what changed to require
> the extra 9 seconds. Are you able to work out which the last kernel
> release without this timeout was?
The delay exists since 2.6.27, versions before them I can't test due to 
udev-149 which don't work together with version < 2.6.27.

Since version 2.6.29 that kernel boot parameter avoids the extra delay, 2.6.28 
needs the 9 sec pause independend from what I specify during boot.

-- 
MfG/Kind regards
Toralf Förster

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