EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: RE: Possible Bug in 3.14.9 Access Security on mv2100
From: "Jeff Hill" <[email protected]>
To: "'Andrew Johnson'" <[email protected]>, "'Dirk Zimoch'" <[email protected]>
Cc: "'Ralph Lange'" <[email protected]>, "'EPICS Tech Talk'" <[email protected]>
Date: Fri, 17 Aug 2007 18:03:50 -0600
> 
> In May, I reported a bug to the Mantis bugtracker which has not even been 
> assigned until now. (Maybe posting it to tech-talk helps.)

Actually, from my perspective Mantis _is_ the best _first_ place to report
bugs because at least we have a list and if we neglect to take care of an
issue it stays on the list and it will get handled eventually.

Nevertheless, public disclosure on tech-talk is probably also a good way to
get the author's attention should they be busy with other tasks :-)

I had another look at Mantis 291 and it does appear that this is probably
one and the same as the gcc bug that is mentioned in the release notes. To
confirm that conclusion I am requesting that you let us know what version of
gcc was used. Thanks in advance.

PS: Here is my addition to the release notes concerning the GCC bug:

During testing of R3.14.9 I see a bug showing up only in optimized builds on
Linux using g++ 3.2.3 that I don't see with other compilers. This bug
appears to be related to failure of this particular compiler to follow the
strict alias rules specified in the standard when optimizing the byte
swapping templates installed for R3.14.9.

Problems
Red hat Linux g++ 3.2.3 when -O3 is specified
No problems
mingw g++ 3.4.2 -O3
Tornado 2.02 g++ -O2
Microsoft C++ 2005 full optimization builds

PPS: Sorry about neglecting to jump on this earlier. 

Jeff

-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of Andrew Johnson
Sent: Friday, August 17, 2007 8:49 AM
To: Dirk Zimoch
Cc: EPICS Tech Talk; Ralph Lange
Subject: Re: Possible Bug in 3.14.9 Access Security on mv2100

Dirk Zimoch wrote:
> 
> In May, I reported a bug to the Mantis bugtracker which has not even been 
> assigned until now. (Maybe posting it to tech-talk helps.)

As a general rule if you *only* use Mantis to report a bug it might go 
for some time before even being noticed by the maintainers.  Problems in 
Base that are described on tech-talk usually get looked at within a day 
or two, and that's almost invariably going to be a better and faster 
approach to getting fixes (it's much easier to have a conversation using 
email than through Mantis bug notes).

- Andrew
-- 
When a distinguished but elderly scientist states that something is
possible, he is almost certainly right.  When he states that something
is impossible, he is very probably wrong.  -- Arthur C. Clarke


Replies:
Re: Possible Bug in 3.14.9 Access Security on mv2100 Dirk Zimoch
References:
Possible Bug in 3.14.9 Access Security on mv2100 Ralph Lange
Re: Possible Bug in 3.14.9 Access Security on mv2100 Steven Hartman
Re: Possible Bug in 3.14.9 Access Security on mv2100 Ralph Lange
Re: Possible Bug in 3.14.9 Access Security on mv2100 Ralph Lange
Re: Possible Bug in 3.14.9 Access Security on mv2100 Dirk Zimoch
Re: Possible Bug in 3.14.9 Access Security on mv2100 Andrew Johnson

Navigate by Date:
Prev: RE: rpath compiling? Denison, PN (Peter)
Next: PI hexapod controller Shepherd, EL (Emma)
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Re: Possible Bug in 3.14.9 Access Security on mv2100 Andrew Johnson
Next: Re: Possible Bug in 3.14.9 Access Security on mv2100 Dirk Zimoch
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 10 Nov 2011 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·