Messages in this thread |  | | | Date | Sun, 17 Feb 2008 21:18:41 -0800 | | From | Arjan van de Ven <> | | Subject | Re: 2.6.25-rc2-mm1: WARNING at arch/x86/mm/ioremap.c:129 |
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On Sun, 17 Feb 2008 23:58:03 -0500 "Brown, Len" <len.brown@intel.com> wrote:
> >Len: This WARN_ON says that ACPI is trying to call ioremap() > >on memory that the e820_table > >lists as "kernel owned". Do you know why ACPI would do this? > >Would ACPI get upset if > >the kernel would tell it to take a hike? > > Depends on the BIOS -- as it is the BIOS AML that is making this > request.
is there any possible valid scenario where the BIOS AML would touch memory the kernel is using? (Since that seems to be what is going on; I'll cook up a diagnostics patch to get more info but the warning gets spewed if ioremap() is trying to map memory the kernel sees as ram)
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