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SubjectRe: 2.6.21-rc1 and 2.6.21-rc2 kwin dies silently
Adrian Bunk wrote:
> On Wed, Mar 28, 2007 at 04:26:05AM +0100, Sid Boyce wrote:
>> Eric W. Biederman wrote:
>>> Sid Boyce <> writes:
>>>> This is what I've got so far on the first boot, I shall have to check the
>>>> manpage for git-bisect again to see if there is anything else to be added,
>>>> nothing enlightening seen so far - further reboots to be done.
>>> I'm a little confused at what I am seeing below.
>>> Normally what happens is that after a kernel compile and test. You call
>>> "git-bisect bad" or "git-bisect good" and then git-bisect picks the next
>>> kernel to test. Then you compile and test that one. It looks like
>>> you called git-bisect bad several times in a row without testing....
>>> Eric
>> This is the procedure I followed.
>> <-- snip -->
>> # install git and cogito on your computer
>> # clone Linus' tree:
>> cg-clone
>> git://
>> # start bisecting:
>> cd linux-2.6
>> git bisect start
>> git bisect bad 86a71dbd3e81e8870d0f0e56b87875f57e58222b
>> git bisect good ac98695d6c1508b724f246f38ce57fb4e3cec356
>> # start round
>> cp /path/to/.config .
>> make oldconfig
>> make
>> # install kernel, check whether it's good or bad, then:
>> git bisect [bad|good]
>> ========================================================
>> I built and installed the kernel downloaded using "cg-clone", booted it
>> up and ran "git bisect bad". I'm also somewhat confused as the first
>> failing kernel is 2.6.20-git11, the Makefile says the kernel got with
>> cg-clone is actually 2.6.21-rc4 and it built as 2.6.20-g208367ee.
>> Regards
>> Sid.
>>>> barrabas:/usr/src/GIT/linux-2.6 # git bisect bad
>>>> Bisecting: 22 revisions left to test after this
>>>> [3fc605a2aa38899c12180ca311f1eeb61a6d867e] knfsd: allow the server to
>>>> provide a
>>>> gid list when using AUTH_UNIX authentication
>>>> rrabas:/usr/src/GIT/linux-2.6 # git bisect bad
>> ...
> I think I got your problem:
> After rebooting, you do "git bisect [bad|good]" *once*.
> Then recompile the kernel from the current tree, reboot, and again
> *once* "git bisect [bad|good]".
> etc.
> cu
> Adrian
If I boot up on 2.6.20-git10 and run "git bisect bad", "git bisect good
v2.6.20-git10" or "git bisect bad v2.6.20-git11", it says it's not a git

I am still no clearer what's required. If I do "cg-clone" I get
2.6.21-rc5. The previous one got me 2.6.21-rc4.
The manpages and the tutorials I've looked at are quite cryptic and the
commands do not produce the expected results.
As indicated above, I followed the instructions bullet by bullet without
any clear understanding of the tools.
1) Ran the commands as above,cg-clone; git start; git bisect bad
<checksum>;git bisect good <checksum of 2.6.20-git10 > I presume.
2) 2.6.20-git10 is the last good kernel.
3) 2.6.20-git11 and later are all bad.
4) I do cg-clone which gives a kernel whose Makefile is 2.6.21-rc4 (or
whatever is current).
5) I get a kernel named 2.6.20-g208367e after make - rebooted and it
fails the same way as 2.6.20-git11.
6) ran "git bisect bad".
Looking through the directories after cg-clone
barrabas:/ftp/mar07/GIT/linux-2.6 # ls .git/refs/tags/
v2.6.11 v2.6.12-rc5 v2.6.13-rc4 v2.6.14-rc2 v2.6.15-rc2
v2.6.16 v2.6.16-rc6 v2.6.17-rc5 v2.6.18-rc4 v2.6.19-rc2
v2.6.20-rc1 v2.6.20-rc7
v2.6.11-tree v2.6.12-rc6 v2.6.13-rc5 v2.6.14-rc3 v2.6.15-rc3
v2.6.16-rc1 v2.6.17 v2.6.17-rc6 v2.6.18-rc5 v2.6.19-rc3
v2.6.20-rc2 v2.6.21-rc1
v2.6.12 v2.6.13 v2.6.13-rc6 v2.6.14-rc4 v2.6.15-rc4
v2.6.16-rc2 v2.6.17-rc1 v2.6.18 v2.6.18-rc6 v2.6.19-rc4
v2.6.20-rc3 v2.6.21-rc2
v2.6.12-rc2 v2.6.13-rc1 v2.6.13-rc7 v2.6.14-rc5 v2.6.15-rc5
v2.6.16-rc3 v2.6.17-rc2 v2.6.18-rc1 v2.6.18-rc7 v2.6.19-rc5
v2.6.20-rc4 v2.6.21-rc3
v2.6.12-rc3 v2.6.13-rc2 v2.6.14 v2.6.15 v2.6.15-rc6
v2.6.16-rc4 v2.6.17-rc3 v2.6.18-rc2 v2.6.19 v2.6.19-rc6
v2.6.20-rc5 v2.6.21-rc4
v2.6.12-rc4 v2.6.13-rc3 v2.6.14-rc1 v2.6.15-rc1 v2.6.15-rc7
v2.6.16-rc5 v2.6.17-rc4 v2.6.18-rc3 v2.6.19-rc1 v2.6.20
v2.6.20-rc6 v2.6.21-rc5
barrabas:/ftp/mar07/GIT/linux-2.6 # ls .git/refs/bisect/
bad good-ac98695d6c1508b724f246f38ce57fb4e3cec356
barrabas:/ftp/mar07/GIT/linux-2.6 # ls .git/refs/heads/
bisect master origin
barrabas:/ftp/mar07/GIT/linux-2.6 # less .git/refs/heads/bisect

barrabas:/ftp/mar07/GIT/linux-2.6 # ls .git/branches/

barrabas:/ftp/mar07/GIT/linux-2.6 # ls
arch COPYING crypto drivers .git include ipc
kernel .mailmap Makefile net REPORTING-BUGS security usr
block CREDITS Documentation fs .gitignore init Kbuild
lib MAINTAINERS mm README scripts sound

git-bisect start
# bad: [86a71dbd3e81e8870d0f0e56b87875f57e58222b] sysctl: hide the
sysctl proc inodes from selinux
git-bisect bad 86a71dbd3e81e8870d0f0e56b87875f57e58222b
# good: [ac98695d6c1508b724f246f38ce57fb4e3cec356] Merge branch 'master'
of /home/trondmy/kernel/linux-2.6/
git-bisect good ac98695d6c1508b724f246f38ce57fb4e3cec356


Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks

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