Re: [PATCH 4/29] x86-i8259-shutdown

[Sytse Wielinga]

On Wed, Jan 26, 2005 at 07:06:50AM -0700, Eric W. Biederman wrote:
> Sytse Wielinga <s.b.wielinga@xxxxxxxxxxxxxxxxxx> writes:
> 
> > On my box this patch breaks shutdown instead, while it was working without it
> > on -rc2-mm1.
> > 
> > I have an Asus A7V8X motherboard with a VIA VT8377 (KT400) north bridge and a
> > VT8235 south bridge (according to lspci). The IO-APIC is used for interrupt
> > routing.
> 
> Hmm.  The patch had a couple of hard coded assumptions about the
> configuration (using ACPI etc), but I don't think it was significant
> enough to break anything.  You have a UP board and a K7 processor
> so my removal of set_cpus_allowed that should not affect anything.
>
> But you are using an SMP kernel or at least the apic support.
Yes, I have only one processor but I am using the IO-APIC.

> Are you using ACPI poweroff?
Yes.

> How does the kernel shutdown fail?
It halts after saying 'acpi_power_off called'. Strangely, it only breaks when
using the Alt-SysRq-O poweroff function. Shutting down normally still powers
off the system (and does print 'acpi_power_off called'). I think it must have
something to do with the IDE devices not having powered down before
acpi_power_off is called, but I haven't seen the code so I have no idea what
really causes it to break.

    Sytse
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