Re: Heads up for distro folks: PCMCIA hotplug differences (Re: -rc4: arm broken?)

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On Sat, Jul 30, 2005 at 11:41:52PM +0200, Pavel Machek wrote:
> Hi!
> 
> > > > > I merged -rc4 into my zaurus tree, and now zaurus will not boot. I see
> > > > > oops-like display, and it seems to be __call_usermodehelper /
> > > > > do_execve / load_script related. Anyone seen it before?
> > > > 
> > > > For the record -rc4 works fine on my Zaurus c760 (which is pxa255 based
> > > > rather than sa1100).
> > > 
> > > It appears to work fine on Intel Assabet.
> > 
> > Let me qualify that, because it's not 100% fine due to the changes in
> > PCMCIA land.
> > 
> > Since PCMCIA cards are detected and drivers bound at boot time, we no
> > longer get hotplug events to setup networking for PCMCIA network cards
> > already inserted.  Consequently, if you are relying on /sbin/hotplug to
> > setup your PCMCIA network card at boot time, triggered by the cardmgr
> > startup binding the driver, it won't happen.
> 
> Does that mean that if CF is inserted during bootup, it will simply
> appear as /dev/hda after bootup, without need to run cardmgr?

Yes, which is almost a plus side.  Whether you can use it to boot from
or not may depend on the timing of the boot up - it looks like it may
suffer the same problems as trying to boot off your USB hard drive.
Try it and see.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core
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