Messages in this thread | | | Date | Fri, 22 Jun 2007 12:38:16 -0700 | From | "Yinghai Lu" <> | Subject | Re: [PATCH] x86-64: disable the GART before allocate aperture |
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On 6/22/07, Muli Ben-Yehuda <muli@il.ibm.com> wrote: > On Fri, Jun 22, 2007 at 12:19:15PM -0700, Yinghai Lu wrote: > > [PATCH] x86-64: disable the GART before allocate aperture > > > > For K8 system: 4G RAM with memory hole remapping enabled, or more > > than 4G RAM installed. when mem is allocated for GART, it will do > > the memset for clear. and for kexec case, the first kernel already > > enable that, the memset in second kernel will cause the system > > restart. So disable that at first before we try to allocate mem for > > it. > > Why does the memset in the second kernel cause a system restart?
the mem for aperture is still used by GART. or the translation is still enabled.
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