Re: [patch 1/2] Validate itimer timeval from userspace

From: Pavel Machek
Date: Thu Mar 23 2006 - 11:18:13 EST


> > > I don't like potential userspace breakage any more than the next guy,
> > > but if the breakage only affects buggy applications then I think it's
> > > more acceptable.
> >
> > Yes, it only breaks buggy applications.
> But we live in the real world. There could be four-year-old applications
> which passed all their Linux QA and which work perfectly well.
> Then the kernel guys make some correctness change and that application
> totally fails on new kernels. Your choice is a) don't use new kernels or
> b) hold off the new kernel until your provider (if the company or internal
> group still exists) has put out a new version of the application and then
> you wear the (considerable) cost of upgrading what was a perfectly-running
> application.
> And whose fault was it? Ours. Because older kernels had the wrong
> checking (thus causing that app's QA to pass) and because later kernels
> changed the rules.

Can we do printk now and fix it after a while in feature-removal?
Or maybe we shoul create new bug-removal file :-).

Thanks, Sharp!
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