PPA init lockup under 2.2.20 SMP

Yann Dirson (ydirson@altern.org)
Sun, 24 Feb 2002 15:45:23 +0100

I experienced a reproducible lockup while loading the PPA (IOmega ZIP
on parport) on 2.2.19 and 2.2.20, on a bi-pIII machine. It seems OK
with SMP in 2.4.17, and works fine with UP in 2.2.x.

I narrowed the problem to the case where:

- parport_pc gets loaded on request of ppa
- it is the initial insmod of ppa

That is, it works fine when:

- either parport_pc is insmod'd manually first
- either ppa has been successfully loaded previously (using manual
insmod of parport_pc). Then even if parport_pc has been unloaded,
"modprobe ppa" loads everything OK.

-- 
Yann Dirson    <ydirson@altern.org> |    Why make M$-Bill richer & richer ?
Debian-related: <dirson@debian.org> |   Support Debian GNU/Linux:
Pro:    <yann.dirson@fr.alcove.com> |  Freedom, Power, Stability, Gratuity
     http://ydirson.free.fr/        | Check <http://www.debian.org/>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/