Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 22 Mar 2016 22:03:42 +0000 (GMT) | From | "Maciej W. Rozycki" <> | Subject | Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines |
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On Fri, 11 Mar 2016, Borislav Petkov wrote:
> > Obvious Ack to the patch, along with a "how did this ever work > > before?" comment.. > > I had a sarcastic sentence in the commit message which I deleted later: > > "Apparently no one had tried the kernel on a 486er after the FPU > rewrite. Backwards compatibility is overrated."
People who care do not always have the resources to make regular tests with their hardware.
I for once have meant to check the original series against my 486 EISA box since Ingo posted them back in May last year, and I still have them stashed away for this purpose. Unfortunately I didn't get to wire that machine for remote console access and power supply control (and I have since run out of ports too), so I need to physically get to its location to do any testing.
So it's not unusual for bugs in the less common configurations to only surface a bit later on, as people get to making an upgrade. At least we have `git bisect' available and individual changes recorded now, which makes tracking down regressions a lot easier than it used to be in the old days.
Maciej
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