On Thu, 2006-08-31 at 10:02 -0700, Moore, Robert wrote:
> Return AE_OK to continue the walk. AE_CTRL_DEPTH will cause the walk to
> continue, but go no further down the current branch of the namespace.
>
> Anything other than these two exceptions will completely abort the walk.
Let me check with AE_OK (this is non-zero?). It will be several hours.
Thanks,
Keith
> > -----Original Message-----
> > From: keith mannthey [mailto:[email protected]]
> > Sent: Thursday, August 31, 2006 9:49 AM
> > To: Len Brown
> > Cc: Moore, Robert; Li, Shaohua; Mattia Dongili; Andrew Morton; lkml;
> linux
> > acpi; KAMEZAWA Hiroyuki
> > Subject: Re: one more ACPI Error (utglobal-0125): Unknown exception
> > code:0xFFFFFFEA [Re: 2.6.18-rc4-mm3]
> >
> > On Thu, 2006-08-31 at 02:48 -0400, Len Brown wrote:
> > > On Tuesday 29 August 2006 16:04, Moore, Robert wrote:
> > > > As far as the unknown exception,
> > > >
> > > > >[ 9.392729] [<c0246fb6>] acpi_ut_status_exit+0x31/0x5e
> > > > >[ 9.393453] [<c0243352>] acpi_walk_resources+0x10e/0x11b
> > > > >[ 9.394174] [<c025697e>] acpi_motherboard_add+0x22/0x31
> > > >
> > > > I would guess that the callback routine for walk_resources is
> > returning
> > > > a non-zero status value which is causing an immediate abort of the
> > walk
> > > > with that value -- and the value is bogus.
> >
> > Before I put this check in acpi_motherboard_add always attached
> itself
> > to any resource type. I simply changed it so if the type is not
> > ACPI_RESOURCE_TYPE_IO or ACPI_RESOURCE_TYPE_FIXED_IO it doesn't attach
> > and can continue to find the correct device to attach to.
> >
> > Perhaps the motherboard device needs to attach to more device types?
> >
> > It was suggest by acpi folks to return -EINVAL. Should something
> else
> > be returned?
> >
> >
> > Thanks,
> > Keith
> >
> > > Yep, see -EINVAL below.
> > >
> > > -Len
> > >
> > >
> http://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-
> > rc4/2.6.18-rc4-mm3/broken-out/hot-add-mem-x86_64-acpi-motherboard-
> > fix.patch
> > >
> > >
> > >
> > > From: Keith Mannthey <[email protected]>
> > >
> > > This patch set allow SPARSEMEM and RESERVE based hot-add to work. I
> > have
> > > test both options and they work as expected. I am adding memory to
> the
> > > 2nd node of a numa system (x86_64).
> > >
> > > Major changes from last set is the config change and RESERVE
> enablment.
> > >
> > >
> > > This patch:
> > >
> > >
> > > Make ACPI motherboard driver not attach to devices/handles it
> dosen't
> > expect.
> > > Fix a bug where the motherboard driver attached to hot-add memory
> event
> > and
> > > caused the add memory call to fail.
> > >
> > > Signed-off-by: Keith Mannthey<[email protected]>
> > > Cc: KAMEZAWA Hiroyuki <[email protected]>
> > > Cc: Andi Kleen <[email protected]>
> > > Signed-off-by: Andrew Morton <[email protected]>
> > > ---
> > >
> > >
> > > diff -puN drivers/acpi/motherboard.c~hot-add-mem-x86_64-acpi-
> > motherboard-fix drivers/acpi/motherboard.c
> > > ---
> a/drivers/acpi/motherboard.c~hot-add-mem-x86_64-acpi-motherboard-fix
> > > +++ a/drivers/acpi/motherboard.c
> > > @@ -87,6 +87,7 @@ static acpi_status acpi_reserve_io_range
> > > }
> > > } else {
> > > /* Memory mapped IO? */
> > > + return -EINVAL;
> > > }
> > >
> > > if (requested_res)
> > > @@ -96,11 +97,16 @@ static acpi_status acpi_reserve_io_range
> > >
> > > static int acpi_motherboard_add(struct acpi_device *device)
> > > {
> > > + acpi_status status;
> > > if (!device)
> > > return -EINVAL;
> > > - acpi_walk_resources(device->handle, METHOD_NAME__CRS,
> > > +
> > > + status = acpi_walk_resources(device->handle, METHOD_NAME__CRS,
> > > acpi_reserve_io_ranges, NULL);
> > >
> > > + if (ACPI_FAILURE(status))
> > > + return -ENODEV;
> > > +
> > > return 0;
> > > }
> > >
> > > _
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
