[BUG] New Kernel Bugs
romanol at upcomillas.es
Tue Nov 13 12:50:38 EST 2007
I jump in this discussion hoping to have some more insight on git and to
report my experience as a tester. I consider myself as half-literate in
this (I am here since 1991, more or less, and I am able to compile a
kernel and even hand-apply a patch, although I am in no way a kernel
On Tue, 2007-11-13 at 18:01 +0100, Adrian Bunk wrote:
> The small instruction below is enough for everyone who is able to
> build his own kernel to do a git bisect.
> # start bisecting:
> cd linux-2.6
> git bisect start
> git bisect bad v2.6.21
> git bisect good v2.6.20
> cp /path/to/.config .
This was what I did in my (in the end almost successful) bisecting when
trying to find the mmc problem (see the thread named "2.6.24-rc1 eat my
SD card"). This is true in theory, but it has some problem. The "this
commit does not compile is the easiest and in man git-bisect it's
explained how to solve it. The changes in .config options, added or
removed, are another problem when jumping back and forth from version (I
was bitten by the gadzillions new options added to hda-intel alsa
driver, but well, that is solvable with a bit of attention).
The main problem I had, and that stopped me to arrive to a definite is
g unrelated (but similar) bug corrected
d unrelated (but similar) bug introduced
(d was the series to change drivers to use sg helpers, and g was a "fix
fallout from sg helpers" patch). Now I have a series of kernels (d, e,
f) that did not work at all and so I cannot mark them good or bad. With
the number of patches added in the free-for-all week, this is a very
probable scenario. There is a way out from this using bisect?
PS as a suggestion, I think that added a "Reported-by", or "Tested-by",
or "Debugged-by" attribution in the repository, as happened to be in the
MMC case, is a nice an d welcomed reward for the effort.
Sorry for the disclaimer --- ¡I cannot stop it!
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