[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
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 10:26:11 +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 10:04:59AM +0200, David Kastrup wrote:
>> 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).
>
> In C++ code, I'd suspect some uninitalized variables (especially
> since it always seems to work on the second run on a machine that
> failed in the first run).
Modern operating systems don't give your code any leftovers from a
previous run. That would be a security violation.
And even user stack initialization below the stack pointer is not
stochastical. System processes (like those triggered by interrupts
and/or preemption) use their own stack, and again: it would be a
security violation if a user process could access any information from
their operation. So the sources for variation in successive identical
runs are very limited.
--
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, 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 ?, 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