From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Bastien ROUCARIES <roucaries.bastien@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Maxim Levitsky <maximlevitsky@gmail.com>,
linux-pm@lists.linux-foundation.org,
LKML <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: Re: [linux-pm] Memory allocations in .suspend became very unreliable)
Date: Wed, 20 Jan 2010 10:17:51 +1100 [thread overview]
Message-ID: <1263943071.724.540.camel@pasglop> (raw)
In-Reply-To: <195c7a901001190104x164381f9v4a58d1fce70b17b6@mail.gmail.com>
On Tue, 2010-01-19 at 10:04 +0100, Bastien ROUCARIES wrote:
> Instead of masking bit could we only check if incompatible flags are
> used during suspend, and warm deeply. Call stack will be therefore
> identified, and we could have some metrics about such problem.
>
> It will be a debug option like lockdep but pretty low cost.
I still believe it would just be a giant can of worms to require every
call site of memory allocators to "know" whether suspend has been
started or not.... Along the same reasons why we added that stuff for
boot time allocs.
Cheers,
Ben.
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next prev parent reply other threads:[~2010-01-19 23:18 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1263549544.3112.10.camel@maxim-laptop>
[not found] ` <1263678289.4276.4.camel@maxim-laptop>
[not found] ` <201001162317.39940.rjw@sisk.pl>
2010-01-17 0:38 ` [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: Re: [linux-pm] Memory allocations in .suspend became very unreliable) Rafael J. Wysocki
2010-01-17 1:24 ` Oliver Neukum
2010-01-17 13:27 ` Rafael J. Wysocki
2010-01-17 13:36 ` Rafael J. Wysocki
2010-01-17 18:58 ` Benjamin Herrenschmidt
2010-01-17 23:00 ` Rafael J. Wysocki
2010-01-18 7:53 ` Oliver Neukum
2010-01-18 16:17 ` [linux-pm] [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: " Alan Stern
2010-01-18 20:59 ` Rafael J. Wysocki
2010-01-19 15:13 ` Alan Stern
2010-01-18 20:56 ` [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: Re: [linux-pm] " Rafael J. Wysocki
2010-01-18 21:55 ` Benjamin Herrenschmidt
2010-01-18 23:33 ` Rafael J. Wysocki
2010-01-17 13:55 ` Rafael J. Wysocki
2010-01-17 16:21 ` [linux-pm] [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: " Minchan Kim
2010-01-17 16:23 ` Minchan Kim
2010-01-18 0:25 ` Rafael J. Wysocki
2010-01-18 2:20 ` KOSAKI Motohiro
2010-01-18 21:06 ` Rafael J. Wysocki
2010-01-19 9:15 ` Oliver Neukum
2010-01-19 20:34 ` Rafael J. Wysocki
2010-01-18 17:00 ` [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: Re: [linux-pm] " Oliver Neukum
2010-01-18 20:41 ` Rafael J. Wysocki
2010-01-19 9:25 ` Oliver Neukum
2010-01-19 20:37 ` Rafael J. Wysocki
2010-01-20 14:05 ` Oliver Neukum
2010-01-20 21:13 ` Rafael J. Wysocki
2010-01-18 2:16 ` KOSAKI Motohiro
2010-01-18 20:55 ` Rafael J. Wysocki
2010-01-19 1:19 ` KOSAKI Motohiro
2010-01-19 3:19 ` Benjamin Herrenschmidt
2010-01-19 9:04 ` Bastien ROUCARIES
2010-01-19 23:17 ` Benjamin Herrenschmidt [this message]
2010-01-20 11:31 ` Oliver Neukum
2010-01-20 21:11 ` Benjamin Herrenschmidt
2010-01-20 21:12 ` Rafael J. Wysocki
2010-01-19 20:47 ` Rafael J. Wysocki
2010-01-20 0:33 ` KOSAKI Motohiro
2010-01-20 21:21 ` Rafael J. Wysocki
2010-01-21 0:47 ` KOSAKI Motohiro
2010-01-21 20:21 ` Rafael J. Wysocki
2010-01-21 20:42 ` [linux-pm] [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: " Nigel Cunningham
2010-01-21 21:38 ` Rafael J. Wysocki
2010-01-22 1:31 ` [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: Re: [linux-pm] " KOSAKI Motohiro
2010-01-22 1:42 ` KOSAKI Motohiro
2010-01-22 10:11 ` Maxim Levitsky
2010-01-22 21:19 ` [Update][PATCH] MM / PM: Force GFP_NOIO during suspend/hibernation and resume Rafael J. Wysocki
2010-01-23 9:29 ` Maxim Levitsky
2010-01-25 21:49 ` Rafael J. Wysocki
2010-01-25 21:52 ` Alexey Starikovskiy
2010-01-30 18:56 ` Rafael J. Wysocki
2010-01-30 20:42 ` Maxim Levitsky
2010-01-30 20:53 ` Rafael J. Wysocki
2010-01-22 20:58 ` [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: Re: [linux-pm] Memory allocations in .suspend became very unreliable) Rafael J. Wysocki
2010-01-30 15:46 ` Maxim Levitsky
2010-01-30 18:47 ` Rafael J. Wysocki
2010-01-30 20:37 ` Maxim Levitsky
2010-02-01 19:51 ` Maxim Levitsky
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