Re: the Linux kernel, testsuites, and maybe *you*

From: Bill Davidsen
Date: Sat Sep 01 2007 - 22:34:20 EST


Mike Frysinger wrote:
is there any sort of standard for testing and integration into
mainline ? in the Blackfin world, we've been developing little
external kernel modules and adding them to our own testsuite, but
often times these things are not Blackfin specific. case in point,
we're integrating a string testsuite to make sure all of the fun str*
and mem* functions are sane and operate as they expected, but rather
than having just Blackfin benefit here, i'd like to see this pushed
upstream ...

i'm fully aware of LTP (as i work on it), but i feel that serves a
great purpose for exercising the API/ABI exposed to userspace either
directly through the kernel or indirectly through the system libc ...
it isnt a very good tool for testing kernel internals, especially as
the kernel changes and evolves.

is there a framework already in place i'm not aware of ? should there
be ? should this all live in LTP ? i wouldnt mind an option under
kernel hacking "Enable testsuites" ... as far as i can tell, the
testing process is really based extensively on feedback from people,
nothing really automated.

If you want to test that stuff and run it on the current code in the kernel, how about a kernel module? You could "modprobe sanitytest" or something and report to syslog at module load time. And maybe have a parameter which does something drastic if something core is so hosed that filesystem damage is likely. Or just optional init code run by a kernel option, perhaps sanity testing after boot is not a great idea.

--
Bill Davidsen <davidsen@xxxxxxx>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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