Kernel 'bisection'

Gene Heskett gheskett at wdtv.com
Sat Feb 14 17:03:17 UTC 2015


On Saturday, February 14, 2015 11:50:51 AM Chris wrote:
> On Sat, 2015-02-14 at 15:29 +0000, Colin Law wrote:
> > On 14 February 2015 at 13:41, Chris <cpollock at embarqmail.com> wrote:
> > > On Sat, 2015-02-14 at 13:05 +0000, Peter Waller wrote:
> > >> Briefly, bisection is a way of taking a long list of 1000's of
> > >> changes, and arranging things so that you only have to test more
> > >> like 10 of them, because you test midpoints. (and 2^10 ~ 1000).
> > >> 
> > >> 
> > >> More detail:
> > >> 
> > >> 
> > >> http://alblue.bandlem.com/2011/07/git-tip-of-week-git-bisect.html
> > > 
> > > Here's the same bug reported at freedesktop.org -
> > > https://bugs.freedesktop.org/show_bug.cgi?id=75394 which shows it
> > > affects multiple 'flavors'.
> > 
> > Since it seems it can sometimes be weeks between flavours I don't see
> > how you can do a git bisection on the kernel as you might have to run
> > it for weeks on each version.
> > 
> > However can I first check that there is a known good version of the
> > kernel which does not show the problem?  If so can you not just stick
> > with that version in the hope the bug will get fixed at some point in
> > the future?
> > 
> > Colin
> 
> That's what I was thinking about doing Colin, AFAIK 3.13.0-35 was the
> last kernel that did not show this problem. I guess what I'll do this
> weekend is download and regress to it for awhile and see what happens.
> I've been trying to find the three files I need to -35 but can't seem
> to find them. I looked here
> http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-trusty/ but really
> don't see what I'm looking for. Any advice?
> 
> Chris

You should be able to find that on kernel.org.

Cheers, Gene Heskett
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