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Re: Memory corruption during hibernation since 2.6.31

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From: Hugh Dickins
Subject: Re: Memory corruption during hibernation since 2.6.31
Date: Friday, July 30, 2010 - 11:16 am

On Fri, Jul 30, 2010 at 3:43 AM, KAMEZAWA Hiroyuki
<kamezawa.hiroyu@jp.fujitsu.com> wrote:

Absolutely.  I didn't intend my broader anxieties to distract from
your immediate scan_swap_map() fix.  If Ondrej finds that it does in
fact fix the corruption he's been seeing since 2.6.31, then I'd like
your fix to go straight to Linus for 2.6.35: once swap is 50% full,
your case is rather too likely to occur; whereas I'm worrying about
correctness in unlikely hypothetical circumstances.  But please do
credit Ondrej, and make clear that you're fixing an observed
corrution; and feel free to add my
Acked-by: Hugh Dickins <hughd@google.com>

Hugh
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Messages in current thread:
Memory corruption during hibernation since 2.6.31, Ondrej Zary, (Wed Jul 28, 2:20 pm)
Re: Memory corruption during hibernation since 2.6.31, Rafael J. Wysocki, (Wed Jul 28, 2:34 pm)
Re: Memory corruption during hibernation since 2.6.31, Ondrej Zary, (Wed Jul 28, 2:38 pm)
Re: Memory corruption during hibernation since 2.6.31, KAMEZAWA Hiroyuki, (Wed Jul 28, 6:06 pm)
Re: Memory corruption during hibernation since 2.6.31, KAMEZAWA Hiroyuki, (Wed Jul 28, 7:51 pm)
Re: Memory corruption during hibernation since 2.6.31, KAMEZAWA Hiroyuki, (Wed Jul 28, 9:23 pm)
Re: Memory corruption during hibernation since 2.6.31, KOSAKI Motohiro, (Wed Jul 28, 10:23 pm)
Re: Memory corruption during hibernation since 2.6.31, KAMEZAWA Hiroyuki, (Wed Jul 28, 10:24 pm)
Re: Memory corruption during hibernation since 2.6.31, KOSAKI Motohiro, (Wed Jul 28, 10:30 pm)
Re: Memory corruption during hibernation since 2.6.31, Ondrej Zary, (Thu Jul 29, 10:33 am)
Re: Memory corruption during hibernation since 2.6.31, Hugh Dickins, (Thu Jul 29, 11:44 am)
Re: Memory corruption during hibernation since 2.6.31, Andrea Arcangeli, (Thu Jul 29, 11:55 am)
Re: Memory corruption during hibernation since 2.6.31, Rafael J. Wysocki, (Thu Jul 29, 4:29 pm)
Re: Memory corruption during hibernation since 2.6.31, Rafael J. Wysocki, (Thu Jul 29, 4:40 pm)
Re: Memory corruption during hibernation since 2.6.31, KAMEZAWA Hiroyuki, (Thu Jul 29, 5:01 pm)
Re: Memory corruption during hibernation since 2.6.31, KAMEZAWA Hiroyuki, (Thu Jul 29, 8:36 pm)
Re: Memory corruption during hibernation since 2.6.31, Hugh Dickins, (Thu Jul 29, 8:54 pm)
Re: Memory corruption during hibernation since 2.6.31, Hugh Dickins, (Thu Jul 29, 9:02 pm)
Re: Memory corruption during hibernation since 2.6.31, Hugh Dickins, (Thu Jul 29, 9:10 pm)
Re: Memory corruption during hibernation since 2.6.31, KAMEZAWA Hiroyuki, (Thu Jul 29, 9:14 pm)
Re: Memory corruption during hibernation since 2.6.31, Balbir Singh, (Thu Jul 29, 9:18 pm)
Re: Memory corruption during hibernation since 2.6.31, Hugh Dickins, (Thu Jul 29, 9:32 pm)
Re: Memory corruption during hibernation since 2.6.31, Hugh Dickins, (Thu Jul 29, 9:46 pm)
Re: Memory corruption during hibernation since 2.6.31, Balbir Singh, (Thu Jul 29, 11:37 pm)
Re: Memory corruption during hibernation since 2.6.31, KAMEZAWA Hiroyuki, (Fri Jul 30, 3:43 am)
Re: Memory corruption during hibernation since 2.6.31, Hugh Dickins, (Fri Jul 30, 11:16 am)
[RFC][PATCH -mm] hibernation: freeze swap at hibernation ( ..., KAMEZAWA Hiroyuki, (Sun Aug 1, 11:02 pm)
Re: [RFC][PATCH -mm] hibernation: freeze swap at hibernati ..., Rafael J. Wysocki, (Mon Aug 2, 7:27 am)
Re: [RFC][PATCH -mm] hibernation: freeze swap at hibernati ..., Balbir Singh, (Mon Aug 2, 8:59 am)
Re: [RFC][PATCH -mm] hibernation: freeze swap at hibernati ..., KAMEZAWA Hiroyuki, (Mon Aug 2, 5:19 pm)
Re: Memory corruption during hibernation since 2.6.31, Andrea Gelmini, (Tue Aug 3, 3:50 am)
Re: [RFC][PATCH -mm] hibernation: freeze swap at hibernati ..., Rafael J. Wysocki, (Tue Aug 3, 4:09 pm)
Re: [RFC][PATCH -mm] hibernation: freeze swap at hibernati ..., KAMEZAWA Hiroyuki, (Tue Aug 3, 4:31 pm)
Re: Memory corruption during hibernation since 2.6.31, KAMEZAWA Hiroyuki, (Tue Aug 3, 4:36 pm)
[BUGFIX][PATCH] fix corruption of hibernation caused by re ..., KAMEZAWA Hiroyuki, (Tue Aug 3, 6:50 pm)
Re: [RFC][PATCH -mm] hibernation: freeze swap at hibernati ..., KAMEZAWA Hiroyuki, (Tue Aug 3, 7:26 pm)
Re: [BUGFIX][PATCH] fix corruption of hibernation caused b ..., KAMEZAWA Hiroyuki, (Tue Aug 3, 7:31 pm)
Re: [BUGFIX][PATCH] fix corruption of hibernation caused b ..., KAMEZAWA Hiroyuki, (Tue Aug 3, 7:46 pm)
[PATCH -mm] hibernation: freeze swap at hibernation v2, KAMEZAWA Hiroyuki, (Tue Aug 3, 9:57 pm)
Re: [PATCH -mm] hibernation: freeze swap at hibernation v2, Andrew Morton, (Wed Aug 4, 3:18 pm)
Re: [PATCH -mm] hibernation: freeze swap at hibernation v2, KAMEZAWA Hiroyuki, (Wed Aug 4, 5:32 pm)
Re: Memory corruption during hibernation since 2.6.31, Andrea Gelmini, (Thu Aug 5, 4:41 am)
Re: Memory corruption during hibernation since 2.6.31, Ondrej Zary, (Thu Aug 5, 5:44 am)
Re: [BUGFIX][PATCH] fix corruption of hibernation caused b ..., Hugh Dickins, (Thu Aug 5, 12:12 pm)
Re: Memory corruption during hibernation since 2.6.31, Pavel Machek, (Mon Aug 9, 12:26 am)