Re: [patch] Device model update (with power state transitions)

Patrick Mochel (
Fri, 29 Mar 2002 13:50:06 -0800 (PST)

On Fri, 29 Mar 2002, Pavel Machek wrote:

> Hi!
> > (The first is not necessarily related to the other two, but the other two
> > were created relative to the first, and it's otherwise innocuous).
> >
> > 1. Implements notion of 'system' bus, so system level devices can be added
> > in a comon spot. This includes things like CPUs, PICs, timers, etc.
> Good thing, but naming is pretty inconsistent.
> You have device_register() but register_sys_device().

Noted. How about sys_device_register()?

> > Testing welcome also, though I wouldn't expect one to get very far, since
> > they're not actually used. ;) Which, brings up another question - what
> > would be the proper place to call device_shutdown()? (I haven't looked
> > very far into that part...)
> Tested, seems to work.
> Pavel
> PS: On toshiba 4030cdt, I can suspend once without no apparent ill
> effects. On resume I get
> utmisc-0373 Ut_acquire_mutex : Invalid acquire order: Thread 5C owns
> [ACPI_MTX_Hardware], wants [ACPI_MTX_Namespace].
> followed by more warnings. Is there easy way to debug this?

Maybe using one of the kernel debuggers? I haven't ever used one, but it
sounds like you should have enough context where it would work..


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at