[CRIU] Project for GSoC 2019: Optimize logging engine

[Vaibhav Gupta]

Yah, I found it and already implemented it in the command. Tests passed
successfully after that.
.
I even mailed it.
.
But thanks for attending the query.

On Thu, 14 Mar, 2019, 12:48 PM Adrian Reber <adrian at lisas.de wrote:

> On Thu, Mar 14, 2019 at 11:24:24AM +0530, Vaibhav Gupta wrote:
> > On Thu, Mar 14, 2019 at 11:10 AM Vaibhav Gupta <vaibhavgupta40 at gmail.com
> >
> > wrote:
> >
> > >
> > >
> > > On Tue, Mar 12, 2019 at 9:57 PM Pavel Emelianov <xemul at virtuozzo.com>
> > > wrote:
> > >
> > >> On 3/12/19 2:14 PM, Vaibhav Gupta wrote:
> > >> > Hello everyone,
> > >> > .
> > >> > I was exploring CRIU - Suggested Ideas for GSoC 2019, and have got
> > >> interested in the following project:
> > >> >
> > >> >   * Optimize logging engine -
> > >> https://criu.org/Google_Summer_of_Code_Ideas#Optimize_logging_engine
> > >>
> > >> That's great!
> > >>
> > >> > .
> > >> > I am already exploring this topic and would like to discuss with
> > >> mentors.
> > >>
> > >> Sure! Do you have questions about the gsoc process itself, or can we
> just
> > >> proceed to the
> > >> technical discussion?
> > >>
> > > No, I don't have nay query regarding GSoC Procedures.
> > >
> > >>
> > >> > .
> > >> > It would be great if mentors would like to suggest any specific
> > >> resources, which can be help me to know more about the project.
> > >>
> > >> So, the doc to start with is
> > >> https://criu.org/GSoC_Students_Recommendations, it will
> > >> let you start running criu instantly. Then glance through the
> > >> sources/criu/log.c where
> > >> the logging code sits.
> > >>
> > > I was following the above guide. when I run:
> > $ sudo python zdtm.py run -t static/env00
> > .
> > I get following error in the last:
> > .
> > zdtm.py:21: DeprecationWarning: the imp module is deprecated in favour of
> > importlib; see the module's documentation for alternative uses
> >   import imp
> > The kernel is tainted: '12289\n'
> > Traceback (most recent call last):
> >   File "zdtm.py", line 2306, in <module>
> >     opts['action'](opts)
> >   File "zdtm.py", line 1975, in run_tests
> >     launcher = Launcher(opts, len(torun))
> >   File "zdtm.py", line 1671, in __init__
> >     raise Exception("The kernel is tainted: %r" % self.__taint)
> > Exception: The kernel is tainted: '12289\n'
>
> Just use '--ignore-taint':
>
>  # zdtm.py run --ignore-taint -t static/env00
>
> It is interesting that all of a sudden a lot of people are hitting this.
>
>                 Adrian
>
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