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
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
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 [patch] enforce proper tlb flush in unmap_hugepage_range Chen, Kenneth W
2006-10-03 11:52 ` Bill Irwin [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20061003115237.GE3517@holomorphy.com \
--to=bill.irwin@oracle.com \
--cc=akpm@osdl.org \
--cc=hugh@veritas.com \
--cc=kenneth.w.chen@intel.com \
--cc=linux-mm@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.