6.1-R ? 6-Stable ? 5.5-R ?

2006-06-07 Thread Albert Shih
Hi all.

I'm come back to ask you some question about what release I can use.

I've nfs server running 6-Stable (5 April 2006) with some trouble but ...
well approx stable. 

But today he crash again (after ~1.5 mounth).

Now I'm like have some advise :

1/ I can upgrade to 6.1-Release, but I've see many problem with
nfsd heavy load. And the only purpose of this server is .. nfsd.

2/ I can upgrade to 6-Stable...but it's for production server...

3/ I can downgrade to 5.5. I known this is legacy release but
if it's workthat's enought for me...

Regards.




--
Albert SHIH
Universite de Paris 7 (Denis DIDEROT)
U.F.R. de Mathematiques.
7 i?me ?tage, plateau D, bureau 10
Heure local/Local time:
Thu Jun 8 00:19:23 CEST 2006
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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-08 Thread Oliver Fromme
Albert Shih <[EMAIL PROTECTED]> wrote:
 > I've nfs server running 6-Stable (5 April 2006) with some trouble but ...
 > well approx stable. 
 > 
 > But today he crash again (after ~1.5 mounth).

There have been quite a lot of bug fixes (including NFS-
related, IIRC) in the weeks before the release.  Therefore
I recommend that you update to RELENG_6_1.

Best regards
   Oliver

-- 
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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-08 Thread Massimo Lusetti
On Thu, 2006-06-08 at 12:46 +0200, Oliver Fromme wrote:


> There have been quite a lot of bug fixes (including NFS-
> related, IIRC) in the weeks before the release.  Therefore
> I recommend that you update to RELENG_6_1.

Did you mean RELENG_6, right?

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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-09 Thread Oliver Fromme
Massimo Lusetti <[EMAIL PROTECTED]> wrote:
 > Oliver Fromme wrote:
 > > There have been quite a lot of bug fixes (including NFS-
 > > related, IIRC) in the weeks before the release.  Therefore
 > > I recommend that you update to RELENG_6_1.
 > 
 > Did you mean RELENG_6, right?

No, I meant RELENG_6_1, which is the security fix branch
for 6.1-Release.  Albert wrote that he would prefer not
to use RELENG_6 (a.k.a. "6-stable") on a production machine,
therefore my recommendation is RELENG_6_1.

Of course, there might be good reasons to run RELENG_6
anyway, in case that significant NFS fixes have gone in
after the release (which I'm not aware of).  But that
decision is up to Albert himself.

Best regards
   Oliver

-- 
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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-09 Thread Massimo Lusetti
On Fri, 2006-06-09 at 09:09 +0200, Oliver Fromme wrote:

> No, I meant RELENG_6_1, which is the security fix branch
> for 6.1-Release.  Albert wrote that he would prefer not
> to use RELENG_6 (a.k.a. "6-stable") on a production machine,
> therefore my recommendation is RELENG_6_1.

If read right he is already running a RELENG_6.

> Of course, there might be good reasons to run RELENG_6
> anyway, in case that significant NFS fixes have gone in
> after the release (which I'm not aware of).  But that
> decision is up to Albert himself.

Actually if i remember right the NFS fix are gone in the RELENG_6 and
not in RELENG_6_1

Regards
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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-09 Thread Oliver Fromme
Massimo Lusetti <[EMAIL PROTECTED]> wrote:
 > Oliver Fromme wrote:
 > > No, I meant RELENG_6_1, which is the security fix branch
 > > for 6.1-Release.  Albert wrote that he would prefer not
 > > to use RELENG_6 (a.k.a. "6-stable") on a production machine,
 > > therefore my recommendation is RELENG_6_1.
 > 
 > If read right he is already running a RELENG_6.

Yes -- "with some trouble", as he wrote.  :-)

 > > Of course, there might be good reasons to run RELENG_6
 > > anyway, in case that significant NFS fixes have gone in
 > > after the release (which I'm not aware of).  But that
 > > decision is up to Albert himself.
 > 
 > Actually if i remember right the NFS fix are gone in the RELENG_6 and
 > not in RELENG_6_1

What do you mean, "the" NFS fix?

Several fixes were comitted before the release, so they're
in RELENG_6_1, of course.  I don't know if any important
fixes were comitted after the release, and if so, whether
they are related to Albert's problem.

He wrote that he would prefer to avoid RELENG_6 on his
production server, therefore my recommendation was to give
RELENG_6_1 a try (whose purpose is exactly to be used in
situations like this).  Chances are that his machine will
become more stable.

Best regards
   Oliver

-- 
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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-09 Thread Albert Shih
 Le 09/06/2006 à 09:26:20+0200, Massimo Lusetti a écrit
> On Fri, 2006-06-09 at 09:09 +0200, Oliver Fromme wrote:
> 
> > No, I meant RELENG_6_1, which is the security fix branch
> > for 6.1-Release.  Albert wrote that he would prefer not
> > to use RELENG_6 (a.k.a. "6-stable") on a production machine,
> > therefore my recommendation is RELENG_6_1.
> 
> If read right he is already running a RELENG_6.

Wellyes but after many many crash during many mounth I've running a
Releng_6 (6 April 2006) and it's don't crash. And I don't have update.

Now the server crash yesterday (monday) and I'm asking if it's good idea to
update again. 
> 
> > Of course, there might be good reasons to run RELENG_6
> > anyway, in case that significant NFS fixes have gone in
> > after the release (which I'm not aware of).  But that
> > decision is up to Albert himself.
> 
> Actually if i remember right the NFS fix are gone in the RELENG_6 and
> not in RELENG_6_1

OK, that's mean if I update I need to update to RELENG_6 not RELENG_6_1.

Lots of thanks.

Regards.
--
Albert SHIH
Universite de Paris 7 (Denis DIDEROT)
U.F.R. de Mathematiques.
7 ième étage, plateau D, bureau 10
Heure local/Local time:
Fri Jun 9 09:46:58 CEST 2006
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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-28 Thread Francisco Reyes

Albert Shih writes:


I've nfs server running 6-Stable (5 April 2006) with some trouble but ...
well approx stable. 


But today he crash again (after ~1.5 mounth).

Now I'm like have some advise :

1/ I can upgrade to 6.1-Release, but I've see many problem with
nfsd heavy load. And the only purpose of this server is .. nfsd.


We have been upgrading to 6.X.. including 6.1 and so far the server seems, 
for the most part stable, until a few days ago(more below). What is a HUGE 
problem for us so far is that if the server hanks.. all clients that are 6.X 
can't unmount. 6.0 stable, 6.1 stable.. recent 6.1.. not so recent 6.1.. 
UDP, TCP, softmount with retrycount 1... In  short. Right now I would not 
recommend 6.X for nfs client.



3/ I can downgrade to 5.5. I known this is legacy release but
if it's workthat's enought for me...


So far 6.X has been for the most part stable as NFS sever for us.. but one 
of our servers has been hanging crashing and NFSD was showing as status 
"GIANT"... and locking.. It had 6.0 stable and upgrading it to 6.1 stable 
(6-26) has not helped. But other machines are ok.. so may be an application.


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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-28 Thread Rink Springer
On Wed, Jun 28, 2006 at 04:09:14AM -0400, Francisco Reyes wrote:
> So far 6.X has been for the most part stable as NFS sever for us.. but one 
> of our servers has been hanging crashing and NFSD was showing as status 
> "GIANT"... and locking.. It had 6.0 stable and upgrading it to 6.1 stable 
> (6-26) has not helped. But other machines are ok.. so may be an application.

You'll want to upgrade to the latest 6-STABLE, where this bug has been fixed.

-- 
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   Dracula: Perhaps the same could be said of all religions."
 - Castlevania: Symphony of the Night


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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-28 Thread Francisco Reyes

Rink Springer writes:


On Wed, Jun 28, 2006 at 04:09:14AM -0400, Francisco Reyes wrote:
So far 6.X has been for the most part stable as NFS sever for us.. but one 
of our servers has been hanging crashing and NFSD was showing as status 
"GIANT"



You'll want to upgrade to the latest 6-STABLE, where this bug has been fixed.


RELENG_6?


From what I can tell that is stable

RELENG_6
The line of development for FreeBSD-6.X, also known as FreeBSD 6-STABLE

FreeBSD 6.1-STABLE #4: Sun Jun 25 <

Was it fixed after Jun 25?

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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-28 Thread Rink Springer
> Was it fixed after Jun 25?

This comment fixed it for me:

---
Date: Tue, 13 Jun 2006 10:50:29 + (UTC)
From: Konstantin Belousov <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED], [EMAIL PROTECTED], cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/nfsserver nfs_serv.c nfs_srvsubs.c

kib 2006-06-13 10:50:29 UTC

  FreeBSD src repository

  Modified files:(Branch: RELENG_6)
sys/nfsservernfs_serv.c nfs_srvsubs.c
  Log:
  MFC of the temporary fix for nfsd leaking GIANT.

  src/sys/nfsserver/nfs_serv.c rev. 1.165
  src/sys/nfsserver/nfs_srvsubs.c rev. 1.141

  Approved by:pjd (mentor)

  Revision   ChangesPath
  1.156.2.3  +16 -0 src/sys/nfsserver/nfs_serv.c
  1.136.2.3  +4 -0  src/sys/nfsserver/nfs_srvsubs.c
---

Perhaps you could check your revisions of these files? If this does not
fix it, something more is certainly going on ...

-- 
Rink P.W. Springer- http://rink.nu
  "Richter: Tribute? You steal men's souls, and make them your slaves!
   Dracula: Perhaps the same could be said of all religions."
 - Castlevania: Symphony of the Night


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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-28 Thread Francisco Reyes

Rink Springer writes:


  FreeBSD src repository

  Modified files:(Branch: RELENG_6)
sys/nfsservernfs_serv.c nfs_srvsubs.c
  Log:
  MFC of the temporary fix for nfsd leaking GIANT.

  src/sys/nfsserver/nfs_serv.c rev. 1.165
  src/sys/nfsserver/nfs_srvsubs.c rev. 1.141


Both of those files were older.


  Approved by:pjd (mentor)
  Revision   ChangesPath
  1.156.2.3  +16 -0 src/sys/nfsserver/nfs_serv.c
  1.136.2.3  +4 -0  src/sys/nfsserver/nfs_srvsubs.c


The above files are what I have.

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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-28 Thread Kostik Belousov
On Wed, Jun 28, 2006 at 06:23:15AM -0400, Francisco Reyes wrote:
> Rink Springer writes:
> 
> >  FreeBSD src repository
> >
> >  Modified files:(Branch: RELENG_6)
> >sys/nfsservernfs_serv.c nfs_srvsubs.c
> >  Log:
> >  MFC of the temporary fix for nfsd leaking GIANT.
> >
> >  src/sys/nfsserver/nfs_serv.c rev. 1.165
> >  src/sys/nfsserver/nfs_srvsubs.c rev. 1.141
> 
> Both of those files were older.
> 
> >  Approved by:pjd (mentor)
> >  Revision   ChangesPath
> >  1.156.2.3  +16 -0 src/sys/nfsserver/nfs_serv.c
> >  1.136.2.3  +4 -0  src/sys/nfsserver/nfs_srvsubs.c
> 
> The above files are what I have.
What this means ? That you have _this_ revisions of the files,
and your LA skyrocketed ?


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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-29 Thread Francisco Reyes

Kostik Belousov writes:


>  Approved by:pjd (mentor)
>  Revision   ChangesPath
>  1.156.2.3  +16 -0 src/sys/nfsserver/nfs_serv.c
>  1.136.2.3  +4 -0  src/sys/nfsserver/nfs_srvsubs.c

The above files are what I have.


Yes from a 6.1 stable around 6-25-06


What this means ? That you have _this_ revisions of the files,
and your LA skyrocketed ?


LA = load average?

Our problem is vmstat  'b' column growing and nfs causing locks on the 
server side. When the machine locked it was running a background fsck. I saw 
"Giant" a lot in the status of the nfsd.


I am really wondering if 6.1 is ready for production under heavy load. And 
for sure the NFS client in the whole 6.X line seems problematic (see my post 
in the stable list under subject: NFS clients freeze and can not 
disconnect).


As for the vmstat, about the only thing doing anything even remotely 
appearing to be doing work is NFS.


For instance I saw this in another thread:
ps ax -O ppid,flags,mwchan | awk '($6 ~ /^D/ || $6 == "STAT") && $3 !~ 
/^20.$/'


And in the machine in question it shows
 PID  PPID   F MWCHAN  TT  STAT  TIME COMMAND
16124 16123   0 biowr   ??  D 46:24.76 nfsd: server (nfsd)
16125 16123   0 biowr   ??  D 16:05.58 nfsd: server (nfsd)
16126 16123   0 biowr   ??  D 11:05.53 nfsd: server (nfsd)
16127 16123   0 biowr   ??  D  8:01.21 nfsd: server (nfsd)
16128 16123   0 biowr   ??  D  6:19.15 nfsd: server (nfsd)
16129 16123   0 biowr   ??  D  5:01.27 nfsd: server (nfsd)
16130 16123   0 biowr   ??  D  3:55.56 nfsd: server (nfsd)
16131 16123   0 biowr   ??  D  3:13.11 nfsd: server (nfsd)
16132 16123   0 biowr   ??  D  2:43.26 nfsd: server (nfsd)
16133 16123   0 biowr   ??  D  2:16.40 nfsd: server (nfsd)
16134 16123   0 biowr   ??  D  1:57.00 nfsd: server (nfsd)
16135 16123   0 biowr   ??  D  1:41.02 nfsd: server (nfsd)
16136 16123   0 biowr   ??  D  1:27.07 nfsd: server (nfsd)
16137 16123   0 biowr   ??  D  1:15.25 nfsd: server (nfsd)
16138 16123   0 biowr   ??  D  1:06.54 nfsd: server (nfsd)
16139 16123   0 biowr   ??  D  0:57.57 nfsd: server (nfsd)
16140 16123   0 biowr   ??  D  0:50.65 nfsd: server (nfsd)
16141 16123   0 biowr   ??  D  0:44.60 nfsd: server (nfsd)
16142 16123   0 biowr   ??  D  0:38.29 nfsd: server (nfsd)
16143 16123   0 biowr   ??  D  0:34.21 nfsd: server (nfsd)
16144 16123   0 biowr   ??  D  0:29.34 nfsd: server (nfsd)
16145 16123   0 biowr   ??  D  0:26.35 nfsd: server (nfsd)
16146 16123   0 biowr   ??  D  0:22.25 nfsd: server (nfsd)
16147 16123   0 biowr   ??  D  0:18.17 nfsd: server (nfsd)
16148 16123   0 biowr   ??  D  0:15.95 nfsd: server (nfsd)
16149 16123   0 biowr   ??  D  0:13.66 nfsd: server (nfsd)
16150 16123   0 biowr   ??  D  0:10.81 nfsd: server (nfsd)
16151 16123   0 biowr   ??  D  0:08.92 nfsd: server (nfsd)
16152 16123   0 biowr   ??  D  0:06.82 nfsd: server (nfsd)
16153 16123   0 biowr   ??  D  0:05.16 nfsd: server (nfsd)
84338 100434100 ufs ??  D  0:02.00 qmgr -l -t fifo -u
91632 100434100 biowr   ??  D  0:00.02 cleanup -z -t unix -u
91650 100434100 ufs ??  D  0:00.04 [smtpd]
91912 866354100 biowr   ??  Ds 0:00.01 /usr/local/bin/maildrop -d 
[EMAIL PROTECTED]
91916 905794100 biowr   ??  Ds 0:00.01 /usr/local/bin/maildrop -d 
[EMAIL PROTECTED]
71677 716724002 ppwait  p1  D  0:00.15 -su (csh)  


The iostat for that machine shows:
iostat 5
 tty da0pass0 cpu
tin tout  KB/t tps  MB/s   KB/t tps  MB/s  us ni sy in id
  0  130 15.35 109  1.63   0.00   0  0.00   6  0  6  1 87
  0   36 10.43 230  2.34   0.00   0  0.00   3  0  2  1 93
  0   12 10.81 280  2.96   0.00   0  0.00   6  0  2  0 92
  0   12 13.03 259  3.30   0.00   0  0.00   0  0  1  1 98
  0   12 12.87 259  3.26   0.00   0  0.00   5  0  2  1 91
  0   12 17.17 228  3.82   0.00   0  0.00   8  0  3  1 87
  0   12 18.38 306  5.49   0.00   0  0.00   3  0  2  1 94
  0   12 14.53 284  4.04   0.00   0  0.00   6  0  3  1 89
  0   12 26.03 213  5.41   0.00   0  0.00   5  0  3  2 91

Before that machine went into production, during the stress test I saw the 
machine do 700+ tps and substantially more MB/s.


We also have another machine identical hardware wise and although it's tps 
is 50 to 100 less than this one.. the machine is always ver low in the 
'b' column.


I am trying now to read up in vmstat.. to see if I can see anything wrong in 
vmstat -s

1660720108 cpu context switches
736683712 device interrupts
46973243 software interrupts
99310719 traps
3405487756 system calls
  46 kernel threads created
  385149  fork() calls
7785 vfork() calls
   0 rfork() calls
2809 swap pager pageins
4449 swap pager pages paged in
2027 swap pager pageouts
4609 swap pager pages pag

Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-29 Thread Kostik Belousov
On Thu, Jun 29, 2006 at 01:38:54PM -0400, Francisco Reyes wrote:
> Kostik Belousov writes:
> 
> >>>  Approved by:pjd (mentor)
> >>>  Revision   ChangesPath
> >>>  1.156.2.3  +16 -0 src/sys/nfsserver/nfs_serv.c
> >>>  1.136.2.3  +4 -0  src/sys/nfsserver/nfs_srvsubs.c
> >>
> >>The above files are what I have.
> 
> Yes from a 6.1 stable around 6-25-06
> 
> >What this means ? That you have _this_ revisions of the files,
> >and your LA skyrocketed ?
> 
> LA = load average?
> 
> Our problem is vmstat  'b' column growing and nfs causing locks on the 
> server side. When the machine locked it was running a background fsck. I 
> saw "Giant" a lot in the status of the nfsd.
This seems to be a different issue. BTW, I have already heard complaints
about deadlocks caused by combination of nfsd and snapshots.

Probably, I will look into this, but cannot give you estimations when.

For now, you could turn off background fsck.


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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-29 Thread Mark Linimon
On Thu, Jun 29, 2006 at 01:38:54PM -0400, Francisco Reyes wrote:
> I am really wondering if 6.1 is ready for production under heavy load. And 
> for sure the NFS client in the whole 6.X line seems problematic (see my 
> post in the stable list under subject: NFS clients freeze and can not 
> disconnect).

It's not easily possible for a FreeBSD developer to put these kinds of
stresses on a machine, so we rely on our users to help us with these
problems.  In particular, if it is possible for people to create synthetic
workloads based on their own codebases, on non-production machines, these
problems are more likely to be solved.

mcl
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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-29 Thread Francisco Reyes

Mark Linimon writes:


It's not easily possible for a FreeBSD developer to put these kinds of
stresses on a machine, so we rely on our users to help us with these
problems.


And this is why I have been trying to someone to PAY him/her to help us.

I have been trying to find if anyone that works with the NFS code in FreeBSD 
would have time to work with us on a consulting bases to get the NFS client 
in 6 fixed.


As for the vmstat problem with that machine.. the same.. if someone was 
willing to help us track down what in 6.X .. or even our settings.. is 
causing this heavy load  we would definitely be willing to pay.


Should I contact the FreeBSD foundation for this?
In particular the NFS client is a killer problem for us. Anyone can 
recommend who to talk to? Should I be writing to the filesystem list?
I am not sure how much of a problem the nfs server side is, but the client 
in the whole 6.X line has been problematic for us.   
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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-29 Thread Francisco Reyes

Kostik Belousov writes:


This seems to be a different issue. BTW, I have already heard complaints
about deadlocks caused by combination of nfsd and snapshots.


I think you can add: nfsd + background fsck too.


Probably, I will look into this, but cannot give you estimations when.


Thank!!


For now, you could turn off background fsck.


We did.. and it was horrible.. It seems mysql was crashing the machine so we 
had 4 reboots in about 5 days. Since we had to give up on background fsck, 
that meant 2 hours every time the machine rebooted (the machine in question 
has 10+ million files in the volume which takes the 2 hours to fsck).  
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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-29 Thread User Freebsd

On Thu, 29 Jun 2006, Francisco Reyes wrote:


Kostik Belousov writes:


>  Approved by:pjd (mentor)
>  Revision   ChangesPath
>  1.156.2.3  +16 -0 src/sys/nfsserver/nfs_serv.c
>  1.136.2.3  +4 -0  src/sys/nfsserver/nfs_srvsubs.c

The above files are what I have.


Yes from a 6.1 stable around 6-25-06


What this means ? That you have _this_ revisions of the files,
and your LA skyrocketed ?


LA = load average?

Our problem is vmstat  'b' column growing and nfs causing locks on the server 
side. When the machine locked it was running a background fsck. I saw "Giant" 
a lot in the status of the nfsd.


'k, you are going through something similar to me, it seems ... have you 
implemented the stuff on:


http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html

and:

enabled DDB within your kernel? (man ddb) ...

DDB is required for the deadlocks debugging ... also, is this a machine 
you have 'easy hands on' for? (ie. in my case, I'm dealing with remote 
servers, which is *really* fun) ...


Actually, what you will want to do is setup a serial console if you can, 
so that you can 'trap the output' of the commands that stuff like ps and 
all that will throw out from DDB, unless you *really* like to write?


I can help you get this all setup offlist if you wish, just email me and 
we'll work through the steps required ... once you have a debug 
environment in place, then generating a good/complete/in depth problem 
report is easier ...



Marc G. Fournier   Hub.Org Networking Services (http://www.hub.org)
Email . [EMAIL PROTECTED]  MSN . [EMAIL PROTECTED]
Yahoo . yscrappy   Skype: hub.orgICQ . 7615664
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Re: 6.1-R ? 6-Stable ? 5.5-R ?

2006-06-29 Thread Mark Linimon
On Thu, Jun 29, 2006 at 01:57:13PM -0400, Francisco Reyes wrote:
> And this is why I have been trying to someone to PAY him/her to help us.

OK, sorry, I had not picked this up from the thread, which I had mostly
just been scanning.  My apologies.

> Should I contact the FreeBSD foundation for this?

You can ask, but the Foundation AFAICT isn't really set up for something
like this.  They are mostly looking at funding new initiatives, again,
from what I can tell.

Currently there's no "right" way to do this.  I'd like to see someone set
up a "marketplace" for things like this but I don't have time to do it
myself (plus, I would participate -- a definite conflict of interest).

In the meantime you can try posting to freebsd-jobs@ and/or look through
the list of FreeBSD Consulting Service Providers at
http://www.freebsd.org/commercial/consult_bycat.html.  It also references
http://berklix.com/~jhs/consultants/, but I don't know if that is up-to-date.

Finally, I'd happily take on the job myself, but I'd be lying if I said I
knew anything about the problem at hand :-)

Good luck.

mcl
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