Commit c730904b authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Jonathan Corbet

doc-rst: admin-guide: move bug bisect to a separate file

Better organize the admin guide documentation by moving the
bug bisect to a separate file.
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent ab0e44c1
Bisecting a bug
+++++++++++++++
Last updated: 28 October 2016
Introduction
============
Always try the latest kernel from kernel.org and build from source. If you are
not confident in doing that please report the bug to your distribution vendor
instead of to a kernel developer.
Finding bugs is not always easy. Have a go though. If you can't find it don't
give up. Report as much as you have found to the relevant maintainer. See
MAINTAINERS for who that is for the subsystem you have worked on.
Before you submit a bug report read
:ref:`Documentation/admin-guide/reporting-bugs.rst <reportingbugs>`.
Devices not appearing
=====================
Often this is caused by udev/systemd. Check that first before blaming it
on the kernel.
Finding patch that caused a bug
===============================
Using the provided tools with ``git`` makes finding bugs easy provided the bug
is reproducible.
Steps to do it:
- build the Kernel from its git source
- start bisect with [#f1]_::
$ git bisect start
- mark the broken changeset with::
$ git bisect bad [commit]
- mark a changeset where the code is known to work with::
$ git bisect good [commit]
- rebuild the Kernel and test
- interact with git bisect by using either::
$ git bisect good
or::
$ git bisect bad
depending if the bug happened on the changeset you're testing
- After some interactions, git bisect will give you the changeset that
likely caused the bug.
- For example, if you know that the current version is bad, and version
4.8 is good, you could do::
$ git bisect start
$ git bisect bad # Current version is bad
$ git bisect good v4.8
.. [#f1] You can, optionally, provide both good and bad arguments at git
start::
git bisect start [BAD] [GOOD]
For further references, please read:
- The man page for ``git-bisect``
- `Fighting regressions with git bisect <https://www.kernel.org/pub/software/scm/git/docs/git-bisect-lk2009.html>`_
- `Fully automated bisecting with "git bisect run" <https://lwn.net/Articles/317154>`_
- `Using Git bisect to figure out when brokenness was introduced <http://webchick.net/node/99>`_
...@@ -3,80 +3,6 @@ Bug hunting ...@@ -3,80 +3,6 @@ Bug hunting
Last updated: 28 October 2016 Last updated: 28 October 2016
Introduction
============
Always try the latest kernel from kernel.org and build from source. If you are
not confident in doing that please report the bug to your distribution vendor
instead of to a kernel developer.
Finding bugs is not always easy. Have a go though. If you can't find it don't
give up. Report as much as you have found to the relevant maintainer. See
MAINTAINERS for who that is for the subsystem you have worked on.
Before you submit a bug report read
:ref:`Documentation/admin-guide/reporting-bugs.rst <reportingbugs>`.
Devices not appearing
=====================
Often this is caused by udev/systemd. Check that first before blaming it
on the kernel.
Finding patch that caused a bug
===============================
Using the provided tools with ``git`` makes finding bugs easy provided the bug
is reproducible.
Steps to do it:
- build the Kernel from its git source
- start bisect with [#f1]_::
$ git bisect start
- mark the broken changeset with::
$ git bisect bad [commit]
- mark a changeset where the code is known to work with::
$ git bisect good [commit]
- rebuild the Kernel and test
- interact with git bisect by using either::
$ git bisect good
or::
$ git bisect bad
depending if the bug happened on the changeset you're testing
- After some interactions, git bisect will give you the changeset that
likely caused the bug.
- For example, if you know that the current version is bad, and version
4.8 is good, you could do::
$ git bisect start
$ git bisect bad # Current version is bad
$ git bisect good v4.8
.. [#f1] You can, optionally, provide both good and bad arguments at git
start::
git bisect start [BAD] [GOOD]
For further references, please read:
- The man page for ``git-bisect``
- `Fighting regressions with git bisect <https://www.kernel.org/pub/software/scm/git/docs/git-bisect-lk2009.html>`_
- `Fully automated bisecting with "git bisect run" <https://lwn.net/Articles/317154>`_
- `Using Git bisect to figure out when brokenness was introduced <http://webchick.net/node/99>`_
Fixing the bug Fixing the bug
============== ==============
......
...@@ -26,6 +26,7 @@ problems and bugs in particular. ...@@ -26,6 +26,7 @@ problems and bugs in particular.
reporting-bugs reporting-bugs
security-bugs security-bugs
bug-hunting bug-hunting
bug-bisect
oops-tracing oops-tracing
ramoops ramoops
dynamic-debug-howto dynamic-debug-howto
......
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