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Message-ID: <20080319105618.GA8298@atrey.karlin.mff.cuni.cz>
Date: Wed, 19 Mar 2008 11:56:18 +0100
From: Pavel Machek <pavel@....cz>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@...k.pl>,
pm list <linux-pm@...ts.linux-foundation.org>,
ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
Alan Stern <stern@...land.harvard.edu>,
David Brownell <david-b@...bell.net>, Greg KH <greg@...ah.com>,
Len Brown <lenb@...nel.org>,
LKML <linux-kernel@...r.kernel.org>,
Shaohua Li <shaohua.li@...el.com>,
Alexey Starikovskiy <astarikovskiy@...e.de>,
Johannes Berg <johannes@...solutions.net>
Subject: Re: suspend slow in 2.6.25-rc6 (was Re: Suspend and hibernation patchset against -rc6)
Hi!
> > It will take a while. My .git directory is 7G, and I'd like to do a
> > backup before playing with git.
>
> Ouch, what have you done? It should be about 200MB, not 7GB.
Nothing, just used git.
> > git gc does not exist here, so I guess I need to update git, too :-(.
>
> Well, even with old git you can just do
>
> git repack -a -d
>
> and in your case you'll probably have to leave it running overnight,
> because it's going to take hours since you've clearly not ever repacked it
> before and as a result it's going to do lots and lots of IO (all that 7GB
> and then read much of it twice).
I actually _did_ repack before, and this repack was reasonably quick.
> > commit 7c0ea45be4f114d85ee35caeead8e1660699c46f
> >
> > ACPI: Ignore _BQC object when registering backlight device
> >
> > when did this go in? Pretty recently, right?
>
> Yes:
>
> [torvalds@...dy linux]$ git describe 7c0ea45be4f114d85ee35caeead8e1660699c46f
> v2.6.25-rc5-89-g7c0ea45
>
> so it happened after -rc5.
Ok, so I confirmed that kernel-breaks-backlight-in-X-after-lid-reopen
is indeed regression between -rc5 and -rc6. Reverting drivers/acpi in
-rc6 fixes this regression.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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