On Tue, 2006-11-28 at 18:18 +0900, Akinobu Mita wrote:
> On Mon, Nov 27, 2006 at 11:51:30PM -0800, Don Mullis wrote:
> > Upon keying in
> > echo 1 >probability
> > echo 3 >verbose
> > echo -1 >times
> > a few dozen stacks are printk'ed, then system responsiveness
> > recovers to normal. Similarly, starting a non-trivial program
> > will print a few stacks before responsiveness recovers.
>
> What kind of test did you do?
First, waiting a few seconds for the standard FC-6 daemons to wake up.
Then, Xemacs and Firefox. Not tested on SMP.
> This doesn't maximize code coverage. It makes fault-injector reject
> any failures which have same stacktrace before.
Since the volume of (repeated) dumps is greatly reduced,
interval/probability can be set more aggressively without crippling
interaction. This increases the number of error recovery paths covered
per unit of wall clock time.
> Updating array in this way is not safe (SMP or interrupt).
You're right. Patch forthcoming.
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