linux-kernel - Re: GIT bisection range errors

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Message-ID: <20080508225645.GA24725@deepthought>
Date:	Thu, 8 May 2008 23:56:45 +0100
From:	Ken Moffat <zarniwhoop@...world.com>
To:	Rene Herman <rene.herman@...access.nl>
Cc:	Adrian Bunk <bunk@...nel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: GIT bisection range errors

On Fri, May 09, 2008 at 12:36:55AM +0200, Rene Herman wrote:
> On 09-05-08 00:25, Adrian Bunk wrote:
> >On Fri, May 09, 2008 at 12:20:16AM +0200, Rene Herman wrote:
> >>Good day.
> >>
> >>I'm in a git bisect and am experiencing strangeness. I did a
> >>
> >>$ git checkout -b rc v2.6.26-rc1
> >>$ git bisect start
> >>$ git bisect bad
> >>$ git bisect good v2.6.25
> >>
> >>Yet, during this I'm finding myself at 2.6.25-rc6 and 2.6.25-rc8
> >>as the last two results (both good...).
> >>
> >>Here's the BISECT_LOG upto this point. Is there anyone available
> >>who understands this well enough to be able to say from this that
> >>my tree is fubar? It should be a straight Linus' clone, and it's
> >>always pulling without trouble.
> >>
> >>git-bisect start
> >># bad: [2ddcca36c8bcfa251724fe342c8327451988be0d] Linux 2.6.26-rc1
> >>git-bisect bad 2ddcca36c8bcfa251724fe342c8327451988be0d
> >># good: [4b119e21d0c66c22e8ca03df05d9de623d0eb50f] Linux 2.6.25
> >>git-bisect good 4b119e21d0c66c22e8ca03df05d9de623d0eb50f
> >># bad: [7ae44cfa7ab29b277691327e8de790d7b880722f] [ALSA] snd-powermac: 
> >>style awacs.s and awacs.h
> >>git-bisect bad 7ae44cfa7ab29b277691327e8de790d7b880722f
> >># good: [7cea51be4e91edad05bd834f3235b45c57783f0d] security: fix up 
> >>documentation for security_module_enable
> >>git-bisect good 7cea51be4e91edad05bd834f3235b45c57783f0d
> >># bad: [8f19ca1341a6d89bd96e2e69e6e10f46d3258089] x86: unify gfp masks
> >>git-bisect bad 8f19ca1341a6d89bd96e2e69e6e10f46d3258089
> >># good: [f49e1aa133c2c9b74b5dfddca8863609bbda9086] [NETFILTER]: 
> >>nf_conntrack_sip: update copyright
> >>git-bisect good f49e1aa133c2c9b74b5dfddca8863609bbda9086
> >># good: [0b18542b7f5379e052d2a3132be91185776e7ceb] [NET]: Sink IPv6 
> >>menuoptions into its own submenu
> >>git-bisect good 0b18542b7f5379e052d2a3132be91185776e7ceb
> >
> >Don't trust any dates you see in git.  ;-)
> >
> >The last commit in your list was added to David's tree at around the 
> >time Linus released Linux 2.6.25-rc7.
> >
> >But David's tree was merged into Linus' tree after 2.6.25.
> >
> >So actually everything is fine.
> 
> Well, thanks for the reply and I'm going forward for now, but the Makefile
> is actually calling this 2.6.25-rc8. My next "git bisect good" after the
> above landed me now after 2.6.25 according to the Makefile. It could just
> be a tags issue I guess, where my tree is confused about what tag belongs
> to v2.6.25?
> 
> (new two lines in the log)
> 
> # good: [ba380013b681e91e059f95b51002f8d43024b371] b43: Add fastpath to 
> b43_mac_suspend()
> git-bisect good ba380013b681e91e059f95b51002f8d43024b371
> 
> Rene.
 I reported a similar thing at the beginning of April
http://lkml.org/lkml/2008/4/2/390 - 2.6.25-rc1 bad, 2.6.24 good, git
dropped me back at 2.6.24-rc4 (again, according to the top level
Makefile).

Ken
-- 
das eine Mal als Tragödie, das andere Mal als Farce
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