[LTP] [RFC] [KDUMP] [PROPOSED WORK] kdump on Xen hypervisor and guests, more tests for utilities, like makedumpfile, mkdumprd, kexec etc

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On Tue, 2008-08-12 at 10:16 +0800, Cai Qian wrote:
> Hi Subrata,
> 
> From: Subrata Modak <subrata at linux.vnet.ibm.com>
> Subject: Re: [LTP] [RFC] [KDUMP] [PROPOSED WORK] kdump on Xen hypervisor and guests, more tests for utilities, like makedumpfile, mkdumprd, kexec etc
> Date: Mon, 11 Aug 2008 19:02:47 +0530
> 
> > Cai,
> > 
> > Any headway in this front ?
> > 
> 
> I have all test cases finished, but I am working on implementing a
> suitable harness to run those tests.

Thanks Cai. Happy to know that you are done with all the test cases, and
only the integration part is pending. I am little bit confused when you
say that you are working on implementing a suitable harness to run those
tests. Does that mean that the way the present LTP-Kdump tests are run
is not suitable to accommodate the enhancements/additions that you are
doing to the LTP-Kdump ?

I do not mind in having a nice harness within LTP for executing the
LTP-Kdump tests, but i would hope that the new harness should also
include the existing LTP-Kdump tests, so that you use the same (new
harness) to tests everything in LTP-Kdump. Let me know what you think
for the same.

Regards--
Subrata

> 
> CaiQian
> 
> > Regards--
> > Subrata
> > 
> > On Thu, 2008-07-24 at 05:11 +0530, Subrata Modak wrote:
> > > Hi Cai,
> > > 
> > > Some patches in Bits and Pieces regarding this nearby ?
> > > 
> > > Regards--
> > > Subrata
> > > 
> > > > 
> > > > Yes. Initally, I put this item to a relative low priority, partly
> > > > because kdump config options and init scripts are tend to be
> > > > distro-specific, so it won't be easy to write portable tests for
> > > > different distros. In addition, lots of config options are not easy to
> > > > be tested automately, like raw disk target, vfat disk target, and
> > > > network target etc, as testers have to setup those name manually. But,
> > > > you are right, those are high priority tests for kexec/kdump in distro
> > > > release, we tested most of those options manually for RHEL anyway and we
> > > > had some automated tests of it, which I'll try to submit to LTP as many
> > > > as possible. For those manual tests, I'll also try to find some ways to
> > > > automate them. For example, for different dump targets, it is possible
> > > > to verify the generated initrd file as expected.
> > > > 
> > > > > 
> > > > > > == increase coverages for new kexec/kdump development efforts ==
> > > > > > - new reserved region syntax in Kernel.
> > > > > 
> > > > > Another important thing we need to focus on is driver testing. Drivers
> > > > > can fail to initialize in second kernel and kdump will fail. Can we do
> > > > > something so that we can do following.
> > > > >
> > > > 
> > > > That isn't something I have not thought of. For RHEL release testing, we
> > > > will have a workflow to run those tests on any storage/network drivers,
> > > > and it will report back testing results and driver matrix. However, this
> > > > workflow is very distro-specific, and depends on the test farm it is
> > > > using, so it does not make any sense to put it here.
> > > > 
> > > > > - Collect the machine statistics on which kdump was tested and send
> > > > >   the reports to a common place. Especially capture the storage/network
> > > > >   driver data which can be probably be available through LTP site.
> > > > > 
> > > > 
> > > > That sounds like a good idea to me.
> > > > 
> > > > > - Also capture how much memory was reserved on what architecture and
> > > > >   whether it worked or not. This will help us verify for sure that how
> > > > >  much memory to reserve for second kernel on various architectures.
> > > > >
> > > > 
> > > > This is something could be done. I'll have a look at it.
> > > > 
> > > > Thanks,
> > > > CaiQian
> > > > 
> > > > > Thanks
> > > > > Vivek
> > > 
> > > 
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