Re: [osol-discuss] solaris 32bit broken - so when will it get discontinued ?

2009-10-11 Thread Richard L. Hamilton
 What makes you think a company would necessarily
 _have_ a policy on something like that
 
 they make it available and i don`t read from sun
 something like please don`t use, we don`t support it
 as good as 64bit
 
 if i would readmade just for your convenience, use
 at your own risk somewhere that would be something
 different.
 
 it`s just that i like to know it solaris 32bit is a
 dead child for sun or not and if it`s having really
 severe issues or if this is just FUD from single
 individuals...

 If it were me, I'd say ok for an older desktop or laptop, but I'd prefer the 
best I
could afford for any kind of server.  Besides, zfs on a file or media server 
would
probably be happier with more RAM than most 32-bit only systems can handle.

So...still useful?  Depending on the use, sure.  As good as 64-bit?  Maybe not,
even outside of any reliability concerns.

In the long run, I suspect 32-bit of any OS will only be on embedded devices,
phones, GPS receivers, and so on.  Maybe on SCs for larger systems, too. :-)
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Re: [osol-discuss] solaris 32bit broken - so when will it get discontinued ?

2009-10-10 Thread roland
thanks for your feedback.

actually, it`s also this mail which scares me to use opensolaris 32bit:

http://opensolaris.org/jive/message.jspa?messageID=266248

especially this post:
-
bhorn   
Posts: 75
From: Menlo Park, CA

Registered: 9/5/06

Re: ZFS on 32bit.
Posted: Aug 6, 2008 10:59 PM   in response to: Thomas Garner
To: Communities » zfs » discuss

In the most recent code base (both OpenSolaris/Nevada and S10Ux with patches)
all the known marvell88sx problems have long ago been dealt with.

However, I've said this before. Solaris on 32-bit platforms has problems and
is not to be trusted. There are far, far too many places in the source
code where a 64-bit object is either loaded or stored without any atomic
locking occurring which could result in any number of wrong and bad behaviors.
ZFS has some problems of this sort, but so does some of the low level 32-bit
x86 code. The problem was reported long ago, but to the best of my knowledge
the issues have not been addressed. Looking below it appears that nothing
has been done for about 9 months.
-



furthermore, i have read several times, that 64bit solaris should preferred 
under all circumstances.

that is a user`s opinion, but how does SUN think about that ?
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Re: [osol-discuss] solaris 32bit broken - so when will it get discontinued ?

2009-10-10 Thread Richard L. Hamilton
[...]
 furthermore, i have read several times, that 64bit
 solaris should preferred under all circumstances.
 
 that is a user`s opinion, but how does SUN think
 about that ?

What makes you think a company would necessarily
_have_ a policy on something like that?

Absent such a policy, why should any employee risk their
job by presuming to speak for anyone but themselves? If
the policy exists, the _most_ you can hope for is that one
of them will know it, and repeat it.

Plenty of folks aren't employees, either.

I don't _think_ Sun currently sells any non-64-bit-capable
systems on which they support Solaris, although I'm not positive.

I don't know whether or not they sell support contracts for
running current Solaris on non-64-bit-capable systems they
don't sell, or don't sell anymore.

If they don't do either of those things, I would expect patches
to make Solaris more reliable on non-64-bit-capable systems to mostly
come from outside of Sun, except insofar as very very specific
problems are fixed when they're identified (like specific instances
of non-atomic operations).  So even if I didn't want to submit _patches_,
if I wanted Solaris on such systems to be improved, I'd try to identify
as many such specific instances of problems myself, and submit those
as bugs, so that somebody else could perhaps do the code more quickly.

OTOH, since a 32-bit version of Solaris is offered, it _would_ be nice
if it were as reliable as the 64-bit version (on otherwise comparable
hardware).  But the mere fact it's offered doesn't imply that the
resources exist to perfect it (without outside help).

So I'm not sure whether or not there's an unreasonable inconsistency
there.  Then again, since all my hardware that can run current
32-bit [Open]Solaris is capable of running 64-bit as well, I don't really
have a reason to feel strongly one way or the other. ( 2 UltraSPARC = II
systems, one 64-bit-capable Intel Mac)

Just my opinion.  I don't work for Sun either.
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Re: [osol-discuss] solaris 32bit broken - so when will it get discontinued ?

2009-10-10 Thread John Martin

roland wrote:

thanks for your feedback.

actually, it`s also this mail which scares me to use opensolaris 32bit:

http://opensolaris.org/jive/message.jspa?messageID=266248

  

Why?  This message is a broadcast of the previously mentioned bug,
6634371, by the person who filed it.  What additional concerns does it raise
from the original post?  The ZFS specific version of this bug is:

 http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6735425

The description should ease concerns about the safety of ZFS under 32 
bit kernels.
If anyone believes something was missed, point me to the code and I will 
add it

to the public description.



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Re: [osol-discuss] solaris 32bit broken - so when will it get discontinued ?

2009-10-10 Thread roland
What makes you think a company would necessarily
_have_ a policy on something like that

they make it available and i don`t read from sun something like please don`t 
use, we don`t support it as good as 64bit

if i would readmade just for your convenience, use at your own risk somewhere 
that would be something different.

it`s just that i like to know it solaris 32bit is a dead child for sun or not 
and if it`s having really severe issues or if this is just FUD from single 
individuals...
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[osol-discuss] solaris 32bit broken - so when will it get discontinued ?

2009-10-09 Thread roland
Hello, 

i always wondered about the details why using 32bit solaris is not adviced - i 
now came across this one:

http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6634371

Solaris ON is broken w.r.t. 64-bit operations on 32-bit processors 

as this bugreport is nearly 2 yrs old  and in status dispatched, i`d wonder 
if issues like this will ever be fixed.

so, what about the support status of 32bit solaris then and when is it going to 
be discontinued?

i always thought the problems are theoretical or rare, but looking at 
issues like this, i won`t spend any minute on trying solaris on 32bit 
anymore.

what i´m wondering a little bit is why it`s still running fine here on two 
systems. no zfs errors/problems or crashes or whatever
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Re: [osol-discuss] solaris 32bit broken - so when will it get discontinued ?

2009-10-09 Thread Shawn Walker

roland wrote:
Hello, 


i always wondered about the details why using 32bit solaris is not adviced - i 
now came across this one:

http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6634371

Solaris ON is broken w.r.t. 64-bit operations on 32-bit processors 


as this bugreport is nearly 2 yrs old  and in status dispatched, i`d wonder 
if issues like this will ever be fixed.

so, what about the support status of 32bit solaris then and when is it going to 
be discontinued?

i always thought the problems are theoretical or rare, but looking at 
issues like this, i won`t spend any minute on trying solaris on 32bit anymore.

what i´m wondering a little bit is why it`s still running fine here on two 
systems. no zfs errors/problems or crashes or whatever


I've run OpenSolaris on 32-bit systems for many years without issue.

32-bit is still officially supported.

Cheers,
--
Shawn Walker
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Re: [osol-discuss] solaris 32bit broken - so when will it get discontinued ?

2009-10-09 Thread Dennis Clarke

 I've run OpenSolaris on 32-bit systems for many years without issue.

 32-bit is still officially supported.


$ uname -a
SunOS aequitas 5.11 snv_121 i86pc i386 i86pc
$ isainfo -v
32-bit i386 applications
ahf sse2 sse fxsr mmx cmov sep cx8 tsc fpu
$ isalist -v
i486 i386 i86

works for me and has for years.

-- 
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dcla...@opensolaris.ca  - Email related to the open source Solaris
dcla...@blastwave.org   - Email related to open source for Solaris


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Re: [osol-discuss] solaris 32bit broken - so when will it get discontinued ?

2009-10-09 Thread John Martin

roland wrote:
Hello, 


i always wondered about the details why using 32bit solaris is not adviced - i 
now came across this one:

http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6634371

Solaris ON is broken w.r.t. 64-bit operations on 32-bit processors 


as this bugreport is nearly 2 yrs old  and in status dispatched, i`d wonder 
if issues like this will ever be fixed.

so, what about the support status of 32bit solaris then and when is it going to 
be discontinued?

i always thought the problems are theoretical or rare, but looking at 
issues like this, i won`t spend any minute on trying solaris on 32bit anymore.

what i´m wondering a little bit is why it`s still running fine here on two 
systems. no zfs errors/problems or crashes or whatever
  

The aforementioned bug was very broad, probably too broad to be
resolved with one code delivery.  I believe the discussion at the
time was to file individual bugs against specific drivers (and I believe
there was one filed for ZFS, but I don't know the status).


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