From: Bill Irwin <bill.irwin@oracle.com>
To: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
Cc: 'Hugh Dickins' <hugh@veritas.com>,
'Andrew Morton' <akpm@osdl.org>,
bill.irwin@oracle.com, linux-mm@kvack.org
Subject: Re: [patch] enforce proper tlb flush in unmap_hugepage_range
Date: Tue, 3 Oct 2006 04:52:37 -0700 [thread overview]
Message-ID: <20061003115237.GE3517@holomorphy.com> (raw)
In-Reply-To: <000001c6e6ce$4eb93590$bb80030a@amr.corp.intel.com>
On Tue, Oct 03, 2006 at 02:28:37AM -0700, Chen, Kenneth W wrote:
> Spotted by Hugh that hugetlb page is free'ed back to global pool
> before performing any TLB flush in unmap_hugepage_range(). This
> potentially allow threads to abuse free-alloc race condition.
> Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
This seems terribly familiar. I should have gotten this cleaned up a
long time ago since I'm sure I knew this was an outstanding problem at
some point.
Good patch.
Signed-off-by: William Irwin <wli@holomorphy.com>
-- wli
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prev parent reply other threads:[~2006-10-03 11:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-03 9:28 Chen, Kenneth W
2006-10-03 11:52 ` Bill Irwin [this message]
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