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Re: Confidence: Chopping between 5.2 and 6.0.1
On Fri, 22 Mar 2013 23:38:17 -0500
Donald Lee <MacPPC2%c.icompute.com@localhost> wrote:
> I have converged on a 99% solution for my "chop". Here is my
> 2011-04-15 - usr9 - netbsd 5.99.49 - clean - clean2 - c3 c4 c5
> 2011-04-25 - usrd - (buildfail) netbsd 5.99.50
> 2011-05-05 - usra - netbsd 5.99.51 - clean - bad2 - bad3
> 2011-05-11 - usrc - netbsd 5.99.51b - clean - clean bad1 bad2 bad3
> 2011-05-17 - usrb - netbsd 5.99.51a - bad - bad - bad - bad
> These are the checkout dates I tried, and the test results.
> The 2011-04-15 version was the latest one where I saw no errors, even though
> I ran the test case (at least) 5 times. No errors on versions prior to that
> The 2011-04-25 checkout did not build, unfortunately.
> The 2011-05-05 and 2011-05-11 builds looked OK, but when I re-ran the
> tests, I did see failures. For the 2011-05-11 version especially, it
> was hard to get an error, but I did get them. 2011-05-17 (and later)
> seems to fail freely
> This puts the timeframe about 3 weeks - somewhere between 2011-04-15
> and 2011-05-05, code went in to cause our badness.
There was a bunch of altivec and fpu handling related commits on May 2nd:
Might be worth to check right before / after that.
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