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Re: [PATCH 2/3] xen/x86: free_p2m_page: use memblock_free_ptr() to free a virtual pointer
- To: Mike Rapoport <rppt@xxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
- From: Juergen Gross <jgross@xxxxxxxx>
- Date: Thu, 23 Sep 2021 10:10:01 +0200
- Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, devicetree@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, kasan-dev@xxxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, linux-alpha@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-efi@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, linux-snps-arc@xxxxxxxxxxxxxxxxxxx, linux-um@xxxxxxxxxxxxxxxxxxx, linux-usb@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Mike Rapoport <rppt@xxxxxxxxxxxxx>
- Delivery-date: Thu, 23 Sep 2021 08:10:10 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 23.09.21 09:43, Mike Rapoport wrote:
From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
free_p2m_page() wrongly passes a virtual pointer to memblock_free() that
treats it as a physical address.
Call memblock_free_ptr() instead that gets a virtual address to free the
memory.
Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
Juergen
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