From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/3] arm64: hugetlb: Fix huge_pte_offset to return poisoned page table entries
Date: Wed, 7 Jun 2017 15:58:55 +0100 [thread overview]
Message-ID: <20170607145855.cu5tob2uck2xbvxm@localhost> (raw)
In-Reply-To: <20170517152336.6052-2-punit.agrawal@arm.com>
On Wed, May 17, 2017 at 04:23:34PM +0100, Punit Agrawal wrote:
> When memory failure is enabled, a poisoned hugepage pte is marked as a
> swap entry. huge_pte_offset() does not return the poisoned page table
> entries when it encounters PUD/PMD hugepages.
>
> This behaviour of huge_pte_offset() leads to error such as below when
> munmap is called on poisoned hugepages.
>
> [ 344.165544] mm/pgtable-generic.c:33: bad pmd 000000083af00074.
>
> Fix huge_pte_offset() to return the poisoned pte which is then
> appropriately handled by the generic layer code.
>
> Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
> Acked-by: Steve Capper <steve.capper@arm.com>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: David Woods <dwoods@mellanox.com>
Since the patch matches my suggestions in v1:
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
next prev parent reply other threads:[~2017-06-07 14:58 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-17 15:23 [PATCH v2 0/3] arm64: Add support for handling memory corruption Punit Agrawal
2017-05-17 15:23 ` [PATCH v2 1/3] arm64: hugetlb: Fix huge_pte_offset to return poisoned page table entries Punit Agrawal
2017-06-07 13:47 ` Will Deacon
2017-06-07 14:30 ` Catalin Marinas
2017-06-07 14:57 ` Will Deacon
2017-06-07 15:32 ` Punit Agrawal
2017-06-07 15:41 ` Will Deacon
2017-06-08 16:28 ` Punit Agrawal
2017-06-07 16:54 ` Catalin Marinas
2017-06-07 14:58 ` Catalin Marinas [this message]
2017-05-17 15:23 ` [PATCH v2 2/3] arm64: hwpoison: add VM_FAULT_HWPOISON[_LARGE] handling Punit Agrawal
2017-06-07 13:59 ` Will Deacon
2017-06-07 17:47 ` Punit Agrawal
2017-05-17 15:23 ` [PATCH v2 3/3] arm64: kconfig: allow support for memory failure handling Punit Agrawal
[not found] ` <1495081650.3981.15@smtp.canonical.com>
2017-05-18 10:27 ` [PATCH v2 0/3] arm64: Add support for handling memory corruption Punit Agrawal
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