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Copying of the pgd range must happen under the pgd_lock. This got broken by the paravirt changes in the -mm tree. Badness can result if you copy the pgd before being added to the list when splitting or rejoining large pages. Signed-off-by: Zachary Amsden <zach@vmware.com> diff -r 2247ff2c3fdb arch/i386/mm/pgtable.c --- a/arch/i386/mm/pgtable.c Thu Apr 05 17:29:15 2007 -0700 +++

Copying of the pgd range must happen under the pgd_lock. This got broken by the paravirt changes in the -mm tree. Badness can result if you copy the pgd before being added to the list when splitting or rejoining large pages. Signed-off-by: Zachary Amsden <zach@vmware.com> diff -r 2247ff2c3fdb arch/i386/mm/pgtable.c --- a/arch/i386/mm/pgtable.c Thu Apr 05 17:29:15 2007 -0700 +++

This is my current set of updates to Xen for 2.6.24. This is largely a bugfix set, and a couple of them are also relevent to 2.6.23. These are in the pre-x86 merge form; I'll update them once the merge goes into git. Quick overview: - remove some dead code in arch/i386/mm/init.c - clean up some duplicate includes - when sending an IPI, yield the vcpu if the destination doesn't have

This is my current set of updates to Xen for 2.6.24. This is largely a bugfix set, and a couple of them are also relevent to 2.6.23. These are in the pre-x86 merge form; I'll update them once the merge goes into git. Quick overview: - remove some dead code in arch/i386/mm/init.c - clean up some duplicate includes - when sending an IPI, yield the vcpu if the destination doesn't have

This is my current set of updates to Xen for 2.6.24. This is largely a bugfix set, and a couple of them are also relevent to 2.6.23. These are in the pre-x86 merge form; I'll update them once the merge goes into git. Quick overview: - remove some dead code in arch/i386/mm/init.c - clean up some duplicate includes - when sending an IPI, yield the vcpu if the destination doesn't have

Hi Andi, This series of patches updates paravirt_ops in various ways. Some of the changes are plain cleanups and improvements, and some add some interfaces necessary for Xen. The brief overview: add-MAINTAINERS.patch - obvious remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed paravirt-nop.patch - mark nop operations consistently paravirt-pte-accessors.patch - operations to pack/unpack

Hi Andi, This series of patches updates paravirt_ops in various ways. Some of the changes are plain cleanups and improvements, and some add some interfaces necessary for Xen. The brief overview: add-MAINTAINERS.patch - obvious remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed paravirt-nop.patch - mark nop operations consistently paravirt-pte-accessors.patch - operations to pack/unpack

Hi Andi, Here's a repost of the paravirt_ops update series I posted the other day. Since then, I found a few potential bugs with patching clobbering, cleaned up and documented paravirt.h and the patching machinery. Overview: add-MAINTAINERS.patch obvious remove-CONFIG_DEBUG_PARAVIRT.patch No longer meaningful or needed. paravirt-nop.patch Clean up nop paravirt_ops functions, mainly to

Hi Andi, Here's a repost of the paravirt_ops update series I posted the other day. Since then, I found a few potential bugs with patching clobbering, cleaned up and documented paravirt.h and the patching machinery. Overview: add-MAINTAINERS.patch obvious remove-CONFIG_DEBUG_PARAVIRT.patch No longer meaningful or needed. paravirt-nop.patch Clean up nop paravirt_ops functions, mainly to

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page-aligned

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page-aligned

Hi Linus, Here's a set of patches to update paravirt_ops and Xen for 2.6.24 A quick overview of the patchset: paravirt_ops: Remove the monolithic paravirt_ops structure, and replace it with smaller structures of related functions. Also, clean up the handling of lazy mode to make it easier to implement. x86/mm/init.c: remove a chunk of dead code Xen: - remove duplicate includes -

Hi Linus, Here's a set of patches to update paravirt_ops and Xen for 2.6.24 A quick overview of the patchset: paravirt_ops: Remove the monolithic paravirt_ops structure, and replace it with smaller structures of related functions. Also, clean up the handling of lazy mode to make it easier to implement. x86/mm/init.c: remove a chunk of dead code Xen: - remove duplicate includes -

Hi Linus, Here's a set of patches to update paravirt_ops and Xen for 2.6.24 A quick overview of the patchset: paravirt_ops: Remove the monolithic paravirt_ops structure, and replace it with smaller structures of related functions. Also, clean up the handling of lazy mode to make it easier to implement. x86/mm/init.c: remove a chunk of dead code Xen: - remove duplicate includes -

...e tried to make each patch as self-explanatory as possible. The series is based on 2.6.20-git16. Changes since the previous posting: - rebased - xen-console has been replaced with a xen backend for the hvc console - dropped patch to remove pgd ctor/dtor - shared-kernel-pmd extensively reviewed by wli - use vmalloc_sync_all in alloc_vm_area - cleaned up Xen Kconfig stuff I looked at linking in xen-head.S rather than including it into xen-head.S, but it seems to provoke linker bugs, so I've left it as-is for now. Thanks, J --

...e tried to make each patch as self-explanatory as possible. The series is based on 2.6.20-git16. Changes since the previous posting: - rebased - xen-console has been replaced with a xen backend for the hvc console - dropped patch to remove pgd ctor/dtor - shared-kernel-pmd extensively reviewed by wli - use vmalloc_sync_all in alloc_vm_area - cleaned up Xen Kconfig stuff I looked at linking in xen-head.S rather than including it into xen-head.S, but it seems to provoke linker bugs, so I've left it as-is for now. Thanks, J --

...e tried to make each patch as self-explanatory as possible. The series is based on 2.6.20-git16. Changes since the previous posting: - rebased - xen-console has been replaced with a xen backend for the hvc console - dropped patch to remove pgd ctor/dtor - shared-kernel-pmd extensively reviewed by wli - use vmalloc_sync_all in alloc_vm_area - cleaned up Xen Kconfig stuff I looked at linking in xen-head.S rather than including it into xen-head.S, but it seems to provoke linker bugs, so I've left it as-is for now. Thanks, J --

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *