Como separar o kernel 12.10 upstream em 12.04?

1

Gostaria de localizar uma regressão do kernel no kernel principal do Ubuntu (de kernel-ppa / mainline - Kernel Ubuntu ) entre o Quantal 3.6.1 e o Quantal 3.6.2. Eu construo em Mint 13 Maya (que é baseado no Ubuntu Precise. Eu sei que não é 100% puro Ubuntu, mas acredito que, neste caso, a diferença não deve influenciar a relevância da questão no Ask Ubuntu):

Para isso eu tentei seguir o Kernel / KernelBisection - Ubuntu Wiki e emiti os seguintes comandos (3445cb2e52e98dd2413bdc6bcccab475d3871dc1 foi o commit retornado pelo git bisect bad):

git clone git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-stable
git clone git://kernel.ubuntu.com/ubuntu/kteam-tools.git
PATH=$PATH:/home/adam/tmp/kteam-tools/mainline-build
cd linux-stable
git remote add quantal git://kernel.ubuntu.com/ubuntu/ubuntu-quantal.git
git bisect start
git bisect good v3.6.1
git bisect bad v3.6.2
mainline-build-one 3445cb2e52e98dd2413bdc6bcccab475d3871dc1 quantal

O último comando retornou:

*** BUILDING: commit:3445cb2e52e98dd2413bdc6bcccab475d3871dc1 series:quantal abinum: ...
full_version<3.6.1>
version<3.6.1>
long<v3.6.1-61-g3445cb2>
abinum<030601>
Checking out files: 100% (8376/8376), done.
Note: checking out 'quantal/master'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b new_branch_name

HEAD is now at 690e4b7... UBUNTU: Ubuntu-3.5.0-18.29
Deleted branch BUILD.030601 (was a718e9e).
Checking out files: 100% (8540/8540), done.
Previous HEAD position was 690e4b7... UBUNTU: Ubuntu-3.5.0-18.29
Switched to a new branch 'BUILD.030601'
vvv - build head
commit 3445cb2e52e98dd2413bdc6bcccab475d3871dc1
Author: Hugh Dickins <[email protected]>
Date:   Mon Oct 8 16:33:14 2012 -0700

    mm: fix invalidate_complete_page2() lock ordering

    commit ec4d9f626d5908b6052c2973f37992f1db52e967 upstream.

    In fuzzing with trinity, lockdep protested "possible irq lock inversion
    dependency detected" when isolate_lru_page() reenabled interrupts while
    still holding the supposedly irq-safe tree_lock:

    invalidate_inode_pages2
      invalidate_complete_page2
        spin_lock_irq(&mapping->tree_lock)
        clear_page_mlock
          isolate_lru_page
            spin_unlock_irq(&zone->lru_lock)

    isolate_lru_page() is correct to enable interrupts unconditionally:
    invalidate_complete_page2() is incorrect to call clear_page_mlock() while
    holding tree_lock, which is supposed to nest inside lru_lock.

    Both truncate_complete_page() and invalidate_complete_page() call
    clear_page_mlock() before taking tree_lock to remove page from radix_tree.
     I guess invalidate_complete_page2() preferred to test PageDirty (again)
    under tree_lock before committing to the munlock; but since the page has
    already been unmapped, its state is already somewhat inconsistent, and no
    worse if clear_page_mlock() moved up.

    Reported-by: Sasha Levin <[email protected]>
    Deciphered-by: Andrew Morton <[email protected]>
    Signed-off-by: Hugh Dickins <[email protected]>
    Acked-by: Mel Gorman <[email protected]>
    Cc: Rik van Riel <[email protected]>
    Cc: Johannes Weiner <[email protected]>
    Cc: Michel Lespinasse <[email protected]>
    Cc: Ying Han <[email protected]>
    Signed-off-by: Andrew Morton <[email protected]>
    Signed-off-by: Linus Torvalds <[email protected]>
    Signed-off-by: Greg Kroah-Hartman <[email protected]>
^^^ - build head
[BUILD.030601 73345fb] base packaging
 167 files changed, 133026 insertions(+)
 create mode 100644 debian.master/NOTES
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*** checking /home/adam/tmp/kteam-tools/mainline-build/adhoc/0001-DISABLE-comedi.patch (drivers/staging/comedi/drivers/das08_cs.c 47a4f33c4733880faa50f0e64a6e5c8f 77bbbfcea08c959f4b17ed4272e0083e) ...
md5sum: drivers/staging/ti-st/st_kim.c: No such file or directory
*** checking /home/adam/tmp/kteam-tools/mainline-build/adhoc/0002-DISABLE-ti-st.patch (drivers/staging/ti-st/st_kim.c b41944e0c30683bdedb6a66e11098892 ) ...
md5sum: drivers/staging/hv/hv_mouse.c: No such file or directory
*** checking /home/adam/tmp/kteam-tools/mainline-build/adhoc/0003-DISABLE-hyperv.patch (drivers/staging/hv/hv_mouse.c afd5524c29871a8293518f0be50a7474 ) ...
*** checking /home/adam/tmp/kteam-tools/mainline-build/adhoc/0004-DISABLE-olpc.patch (drivers/staging/olpc_dcon/olpc_dcon_xo_1.c 13b325ae1aeee7f8602759057ed0d1f9 a8aee429e1dbd6fdf5a8be09dedc7332) ...
*** checking /home/adam/tmp/kteam-tools/mainline-build/adhoc/0005-UBUNTU-olpc_dcon_xo_1-needs-delay.h.patch (drivers/staging/olpc_dcon/olpc_dcon_xo_1.c 6a0ae9f73f4878052202473bb952d6e4 a8aee429e1dbd6fdf5a8be09dedc7332) ...
*** checking /home/adam/tmp/kteam-tools/mainline-build/adhoc/0006-UBUNTU-olpc_dcon_xo_1_5-needs-delay.h.patch (drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c 55c01b13d520fa0cdde88d8d3034f21c 09a07c715554c64673bd2a5db9ee4cd5) ...
*** checking /home/adam/tmp/kteam-tools/mainline-build/adhoc/0007-x86-idle-APM-requires-pm_idle-always-when-it-is-a-mo.patch (arch/x86/kernel/process.c 1ded15dd3a3cb622df182d60160ff826 d2a6ac2dee9787c1beff18733b53b56b) ...
*** checking /home/adam/tmp/kteam-tools/mainline-build/adhoc/0008-UBUNTU-packaging-do-not-fail-secure-copy-on-older-ke.patch (debian/rules.d/2-binary-arch.mk 647c141b53e037781844f0c04234526e cf586e029973c823e501eca040cb73e2) ...
[BUILD.030601 6ba0d7f] debian changelog
 1 file changed, 5 insertions(+), 9042 deletions(-)
 rewrite debian.master/changelog (99%)
precise-amd64: chroot not found (::,)

Eu suspeito que tenha algo a ver com o fato, que eu construo o kernel para o Quantal on Precise. Talvez esse caminho não suporte esse cenário de construção de versão cruzada. Ou talvez o tutorial tenha perdido algo óbvio para os hackers do kernel, que eu não conhecia.

Atualização:

Achei que precisava instalar o devscripts para o dch , mas o problema persiste; Eu atualizei a saída.

    
por Adam Ryczkowski 30.10.2012 / 09:53

1 resposta

1

Eu atualizei o howto aqui: link

Agora, ele aponta para o link , que funciona muito melhor do que as instruções anteriores.

Eu ainda estou trabalhando para melhorar a página do GitKernelBuild, mas ela te guia através de toda a instalação, ao invés da mainline-build-one.

Por favor, deixe-me saber se isso funciona para você e se há mais alguma coisa que possa ser melhorada sobre esses documentos.

    
por gQuigs 11.01.2013 / 23:34