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Re: no movement on Critical issues; 2.16 in Oct ?
From: |
David Kastrup |
Subject: |
Re: no movement on Critical issues; 2.16 in Oct ? |
Date: |
Sun, 31 Jul 2011 10:04:59 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
Graham Percival <address@hidden> writes:
> On Sun, Jul 31, 2011 at 09:42:36AM +0200, David Kastrup wrote:
>> Graham Percival <address@hidden> writes:
>>
>> > I haven't seen any interest in
>> > http://code.google.com/p/lilypond/issues/detail?id=1771
>>
>> My take on this (if nobody is going to protest in the next few hours) is
>> to revert the flawed fix.
>
> I think that's entirely reasonable. IMO, if there's no clear
> offer of a fix within 48 hours of a bad commit, we should revert
> it.
>
>> The other critical bug appears to be related with multithreading, and I
>> consider it likely, given its random appearance, that it will mainly
>> affect multicore systems. I don't have such a one.
>
> I thought lilypond was single-threaded? Or is the C++ stuff
> single-threaded, but the guile stuff multi-threaded? I mean, I
> know that functional programming is great for multi-threaded work
> in general, but I didn't think that we used it as such.
Guile explicitly differentiates functions "map" and "map-in-order". In
theory, it would be free to evaluate "map" in multiple threads. I have
no indication that it does so and would be quite surprised if they
indeed had as fine-grained threading as that.
But this bug has been reported as occuring non-deterministically even in
successive runs on the same machine, and there are rather few things
that can introduce such stochastic behavior (another possibility would
be timer-triggered garbage collection).
--
David Kastrup
- no movement on Critical issues; 2.16 in Oct ?, Graham Percival, 2011/07/31
- Re: no movement on Critical issues; 2.16 in Oct ?, David Kastrup, 2011/07/31
- Re: no movement on Critical issues; 2.16 in Oct ?, Graham Percival, 2011/07/31
- Re: no movement on Critical issues; 2.16 in Oct ?,
David Kastrup <=
- Re: no movement on Critical issues; 2.16 in Oct ?, Graham Percival, 2011/07/31
- Re: no movement on Critical issues; 2.16 in Oct ?, David Kastrup, 2011/07/31
- Re: no movement on Critical issues; 2.16 in Oct ?, Graham Percival, 2011/07/31
- Re: no movement on Critical issues; 2.16 in Oct ?, David Kastrup, 2011/07/31
- Re: no movement on Critical issues; 2.16 in Oct ?, Wols Lists, 2011/07/31
- Re: no movement on Critical issues; 2.16 in Oct ?, David Kastrup, 2011/07/31
- Re: no movement on Critical issues; 2.16 in Oct ?, David Kastrup, 2011/07/31
- Re: no movement on Critical issues; 2.16 in Oct ?, Jan WarchoĊ, 2011/07/31
Re: no movement on Critical issues; 2.16 in Oct ?, Trevor Daniels, 2011/07/31
Re: no movement on Critical issues; 2.16 in Oct ?, Reinhold Kainhofer, 2011/07/31