From: Linus Torvalds <torvalds@linux-foundation.org>
To: Frans Pop <elendil@planet.nl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: Time travel experiment?
Date: Wed, 10 Sep 2008 10:02:41 -0700 (PDT) [thread overview]
Message-ID: <alpine.LFD.1.10.0809101001360.3384@nehalem.linux-foundation.org> (raw)
In-Reply-To: <200809101856.24997.elendil@planet.nl>
On Wed, 10 Sep 2008, Frans Pop wrote:
>
> But I would not expect the RTC to get changed when the resume is
> successful. Or does it just get updated with every resume step without a
> reset to the pre-trace value on completion?
Indeed. We don't know where the bug happens when tracing, so each
trace-point just writes its hash value into it. And nothing restores it,
since nothing knows that the resume is "done" (a lot of problems happen
due to X interactions much later than the 'core' resume thing).
Linus
next prev parent reply other threads:[~2008-09-10 17:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-10 14:58 Time travel experiment? Frans Pop
2008-09-10 14:29 ` Alan Cox
2008-09-10 15:55 ` Frans Pop
2008-09-10 16:25 ` Frans Pop
2008-09-10 16:56 ` Frans Pop
2008-09-10 17:02 ` Linus Torvalds [this message]
2008-09-10 18:07 ` [patch] Document use of RTC in pm_trace Frans Pop
2008-09-13 11:20 ` Pavel Machek
2008-09-10 21:28 ` Time travel experiment? Willy Tarreau
2008-09-10 20:47 ` Geert Uytterhoeven
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