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SubjectRe: 2.6.25-rc3-mm1 - BUG at system shutdown time
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Date
On Wed, 12 Mar 2008 21:27:08 PDT, Andrew Morton said:

> Try this:
>
> echo "git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git#for-akpm" > .git/branches/git-foo
> git-fetch git-foo
> git-checkout git-foo
> git-bisect start
> git-bisect good 968f7910e8d10e5273977248f3d89193b32e8c20
> git-bisect bad c28550f4f68a894a3c05141762f388b5a14f33e3

Trying it against what I already pulled down:

[/usr/src/valdis/x86.git] echo "git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git#for-akpm" > .git/branches/git-foo
[/usr/src/valdis/x86.git] git-fetch git-foo
remote: Counting objects: 1642, done.
remote: Compressing objects: 100% (261/261), done.
remote: Total 1296 (delta 1090), reused 1238 (delta 1034)
Receiving objects: 100% (1296/1296), 197.24 KiB | 215 KiB/s, done.
Resolving deltas: 100% (1090/1090), completed with 218 local objects.
[/usr/src/valdis/x86.git] git-checkout git-foo
error: pathspec 'git-foo' did not match any file(s) known to git.
Did you forget to 'git add'?
[/usr/src/valdis/x86.git] git-bisect start
won't bisect on seeked tree
[/usr/src/valdis/x86.git] git-checkout -b git-foo git-foo
git checkout: updating paths is incompatible with switching branches/forcing
Did you intend to checkout 'git-foo' which can not be resolved as commit?

Trying again against a totally clean new directory:

[/usr/src/valdis] git --version
git version 1.5.4.3
[/usr/src/valdis] rm -rf x86.git
[/usr/src/valdis] mkdir x86.git
[/usr/src/valdis] cd x86.git
[/usr/src/valdis/x86.git] git-init-db
Initialized empty Git repository in .git/
[/usr/src/valdis/x86.git] git-remote add linus git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[/usr/src/valdis/x86.git] git-remote update
Updating linus
warning: no common commits
remote: Counting objects: 721254, done.
remote: Compressing objects: 100% (130309/130309), done.
remote: Total 721254 (delta 598318), reused 711930 (delta 589976)
Receiving objects: 100% (721254/721254), 175.04 MiB | 3535 KiB/s, done.
Resolving deltas: 100% (598318/598318), done.
From git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
* [new branch] master -> linus/master
remote: Counting objects: 105, done.
remote: Compressing objects: 100% (105/105), done.
remote: Total 105 (delta 0), reused 102 (delta 0)
Receiving objects: 100% (105/105), 30.40 KiB, done.
From git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
* [new tag] v2.6.12 -> v2.6.12
* [new tag] v2.6.12-rc2 -> v2.6.12-rc2
(...)
* [new tag] v2.6.25-rc3 -> v2.6.25-rc3
* [new tag] v2.6.25-rc4 -> v2.6.25-rc4
* [new tag] v2.6.25-rc5 -> v2.6.25-rc5
[/usr/src/valdis/x86.git] echo "git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git#for-akpm" > .git/branches/git-foo
[/usr/src/valdis/x86.git] git-fetch git-foo
remote: Counting objects: 1035, done.
remote: Compressing objects: 100% (171/171), done.
remote: Total 909 (delta 777), reused 868 (delta 738)
Receiving objects: 100% (909/909), 138.30 KiB, done.
Resolving deltas: 100% (777/777), completed with 117 local objects.
[/usr/src/valdis/x86.git] git-checkout git-foo
error: pathspec 'git-foo' did not match any file(s) known to git.
Did you forget to 'git add'?
[/usr/src/valdis/x86.git] git-bisect start
[/usr/src/valdis/x86.git] git-bisect good 968f7910e8d10e5273977248f3d89193b32e8c20
fatal: Needed a single revision
Bad rev commit: ^{commit}

Try a third time, pulling down linus and x86 trees:

[/usr/src/valdis] rm -rf x86.git
[/usr/src/valdis] mkdir x86.git
[/usr/src/valdis] cd x86.git
[/usr/src/valdis/x86.git] git-remote add x86 git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
fatal: Not a git repository at /usr/lib/perl5/vendor_perl/5.10.0/Git.pm line 197.
[/usr/src/valdis/x86.git] git-init-db
Initialized empty Git repository in .git/
[/usr/src/valdis/x86.git] git-remote add x86 git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
[/usr/src/valdis/x86.git] git-remote add x86 git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
remote x86 already exists.
[/usr/src/valdis/x86.git] git-remote add linus git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[/usr/src/valdis/x86.git] git-remote update
Updating linus
warning: no common commits
remote: Counting objects: 721254, done.
remote: Compressing objects: 100% (130309/130309), done.
remote: Total 721254 (delta 598318), reused 711930 (delta 589976)
Receiving objects: 100% (721254/721254), 175.04 MiB | 10032 KiB/s, done.
Resolving deltas: 100% (598318/598318), done.
From git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
* [new branch] master -> linus/master
remote: Counting objects: 105, done.
remote: Compressing objects: 100% (105/105), done.
remote: Total 105 (delta 0), reused 102 (delta 0)
Receiving objects: 100% (105/105), 30.40 KiB, done.
From git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
* [new tag] v2.6.12 -> v2.6.12
* [new tag] v2.6.12-rc2 -> v2.6.12-rc2
* [new tag] v2.6.12-rc3 -> v2.6.12-rc3
(...}
* [new tag] v2.6.25-rc3 -> v2.6.25-rc3
* [new tag] v2.6.25-rc4 -> v2.6.25-rc4
* [new tag] v2.6.25-rc5 -> v2.6.25-rc5
Updating x86
remote: Counting objects: 2651, done.
remote: Compressing objects: 100% (340/340), done.
remote: Total 2320 (delta 1978), reused 2320 (delta 1978)
Receiving objects: 100% (2320/2320), 408.43 KiB | 588 KiB/s, done.
Resolving deltas: 100% (1978/1978), completed with 310 local objects.
From git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* [new branch] base -> x86/base
* [new branch] for-akpm -> x86/for-akpm
* [new branch] for-linus -> x86/for-linus
* [new branch] latest -> x86/latest
* [new branch] master -> x86/master
* [new branch] origin -> x86/origin
* [new branch] testing -> x86/testing
[/usr/src/valdis/x86.git] echo "git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git#for-akpm" > .git/branches/git-foo
[/usr/src/valdis/x86.git] git-fetch git-foo
[/usr/src/valdis/x86.git] git-checkout git-foo
error: pathspec 'git-foo' did not match any file(s) known to git.
Did you forget to 'git add'?
[/usr/src/valdis/x86.git] git-bisect start
[/usr/src/valdis/x86.git] git-bisect good 968f7910e8d10e5273977248f3d89193b32e8c20
fatal: Needed a single revision
Bad rev commit: ^{commit}

Obviously, I'm either a *total* git-idiot, or malevolent spirits have taken
up residence in my laptop and are conspiring to prevent me from troubleshooting
this problem... ;)

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