From: "Ondřej Bílka" <neleai@...>
Date: 2011-06-28T12:32:06+09:00
Subject: [ruby-core:37602] Re: CI?

I am not sure how will valgrind play with GC
On Tue, Jun 28, 2011 at 12:05:07PM +0900, Clifford Heath wrote:
> I see quite a few segfault bugs being reported.
> 
> Does anyone use Purify, valgrind, or any such tools?
> I've used Purify extensively in the past, and regard it
> as an essential tool for any C or C++ development.
> Such tools should be *mandatory* for any widely-used
> code-bases.
> 
> Memory corruption bugs are often innocuous, causing
> no effects until a slight change, that can be years after,
> causes random and unrelated crashes to appear
> seemingly out of the blue. Even just re-linking with an
> updated C library, adding a function that affects memory
> layout (so a bug in *another* function shows up), and
> basically the tiniest changes, can trigger a fault to show
> itself.
> 
> The only way to effectively prevent such bugs is a tool
> like Purify, which isolates the source of a potential
> error, possibly long before the subsequent crash.
> Purify is much better than valgrind, by the way. It rewrites
> your object code (including all system shared libraries)
> such that every memory reference is checked; no bounds
> overflows, no read-before-set errors, etc. An incredible and
> under-utilised tool...
> 
> Clifford Heath.
> 
> On 28/06/2011, at 7:45 AM, NARUSE, Yui wrote:
> 
> >(2011/06/28 6:28), Ryan Davis wrote:
> >>Is this an official CI for ruby?
> >
> >It is mine.
> >It is the result of chkbuild on FreeBSD 8.2 x86_64.
> >chkbuild is a CI by akr.
> >http://cvs.m17n.org/viewcvs/ruby/chkbuild/
> >
> >
> >>http://59.106.172.211/~chkbuild/ruby-trunk/summary.html
> >>
> >>If so... how does one read this?? I can't make sense of it.
> >
> >For examle,
> >20101011T060001Z ruby 1.9.3dev (2010-10-11 trunk 29438) [x64-
> >freebsd8.1] (fbsd81) 2730W 1F0E1S rubyspec:23F1E (diff:test-all)
> >
> >20101011T060001Z is the time chkdbuild runs from; the link is for
> >the result.
> >ruby 1.9.3dev (2010-10-11 trunk 29438) [x64-freebsd8.1] is `ruby -v`.
> >(fbsd81) is the name of this CI.
> >2730W is the number of warnings of the result.
> >1F0E1S is the result of test-all; 1 Fail 0 Error 1 Skip.
> >rubyspec:23F1E is the result of test-rubyspec; 23 Failure 1 Error.
> >(diff:test-all) is the link to the diff between this result and
> >the previous result.
> >
> >Anyway, summary.html is too big; I recommend to see recent.html.
> >
> >We should keep 0F0E, but in current situation on the environment
> >1F0E46S rubyspec:1F1E is the best result.
> >If it is increased, it means someone breaks something.
> >
> >-- 
> >NARUSE, Yui  <naruse@airemix.jp>
> >
> 

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