Re: Greybeards (Re: Netbooks & BSD)

[Arthur Chance]

On 10/20/10 23:07, Gary Kline wrote:

On Wed, Oct 20, 2010 at 09:10:28PM +0100, Arthur Chance wrote:

On 10/20/10 20:46, Bob Hall wrote:

On Wed, Oct 20, 2010 at 12:07:55PM -0500, Tim Daneliuk wrote:

On 10/20/2010 11:55 AM, Gary Kline wrote:

On Wed, Oct 20, 2010 at 12:47:38AM -0700, per...@pluto.rain.com wrote:

Matthias Apitz   wrote:

El d?a Tuesday, October 19, 2010 a las 07:29:46PM -0700, Gary Kline escribi?:

PS:  I really _was_ current on hardware stuff.  Back in the VAX
780 days :-)

I booted my first UNIX V7 tape on a PDP-11 around 1982, I think.


Gotcha beat :)  UNIX V6, PDP-11/34, RK05 disk cartridge, 1975.
The whole runtime fit on one RK05.  The sources took a second one.


I remember the 11/34 fondly.  The whole EE department at Cory
Hall was running one one; then when I interned at Livermore my
job of porting the "Portable F77 Compiler" was done with vi and
the source code that Stu Feldman wrote.  I love[d] those bloody
old computers, :-)  Dunno why.   Maybe because they really
*were* about computing.  Not streaming [[whatever]] or having
php running.  (Blah^9^9^9)

:)


Heck, when I started out, they didn't even have zeros and ones yet.
We had to settle for "o"s and "l"s ...


When I started out, we didn't have read/write heads for the hard disks.
We had to copy the data from the screen to the disk by hand using
magnetized sewing needles. In order to read the damn things we had to
pass a compass over the disk and see where the needle deflected.


Enough Monty Python Yorkshiremen claims, already. :-)

Getting back to reality, although I never did it (fortunately), a
friend of mine who was about a decade older than me (I'm mid/late
50s) had the experience of programming microcode on a machine by
inserting brass slugs for 0s and ferrite slugs for 1s on a pin
board. Anyone got any idea what that was? He was (UK) military so
maybe it wasn't a generally known box.



This microcode programming sounds just vagely familiar; seems like
mid/late-80's or early-90's. Am i right?  --Most uses for
supercomputers are mil/spooks/<<>>; that's the only reason the
idea might have floated past me.


No, this was circa 1970. I met him in 1975 and and it was past history 
for him then. He was Royal Air Force, if that gives a clue, and 
certainly wasn't a super - he talked about it as if it were a fairly 
dumb mini.


--
"Although the wombat is real and the dragon is not, few know what a
wombat looks like, but everyone knows what a dragon looks like."

-- Avram Davidson, _Adventures in Unhistory_
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Greybeards (Re: Netbooks & BSD)

[perryh]

"Svein Skogen (Listmail account)"  wrote:
> On 20.10.2010 09:47, per...@pluto.rain.com wrote:
> > Matthias Apitz  wrote:
> >> El d?a Tuesday, October 19, 2010 a las 07:29:46PM -0700, Gary Kline
> >> escribi?:
> >>> PS:  I really _was_ current on hardware stuff.  Back in the VAX
> >>> 780 days :-) 
> >> I booted my first UNIX V7 tape on a PDP-11 around 1982, I think.
> > Gotcha beat :)  UNIX V6, PDP-11/34, RK05 disk cartridge, 1975.
> > The whole runtime fit on one RK05.  The sources took a second one.
> I guess I'm just a kid, then, since I wasn't exposed to computers until
> 6 years later (my excuse was being born in 1975). CP/M-80 and MP/M-80
> with intel asm, was where I started my hairpulling... Anybody else got
> nightmares about 8 inch floppies? ;)

If we're going to expand to non-Unix systems:  Fortran on an IBM 1401,
with punch card input and no OS at all, in 1966.
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Netbooks & BSD

[four . harrisons]

Sorry for top posting - I'm stuck on my phone.

I successfully installed FreeBSD on my Lenovo Ideapad before the memstick image 
was available by pulling the circuitry guts out of a USB HD and hooking it to a 
standard internal IDE CD-ROM. Wasn't pretty, but it worked.

Best avoiding Ideapads generally though because of ACPI issues.


Peter Harrison
www.4harrisons.blogspot.com


-
From:   "David Brodbeck" 
Subject:Re: Netbooks & BSD
Date:   20th October 2010 19:33

On Wed, Oct 20, 2010 at 10:32 AM, Gary Kline  wrote:
>         Sure,  the optical uses [I think] a USB connector.   Pretty  sure
>         that  all these tiny "toys" are made at one factory! and then
>         labeled  by the vendor.   If  all the opticals are essentially
>         the  same, then great.

I think they all pretty much follow the same standard. I've even had
success using an IDE CD-ROM drive plugged into a USB-to-IDE adapter
cable, before.
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: need help with php.

[four . harrisons]

Sorry for top posting - I'm stuck on my phone.

Shouldn't that be:

use perl;

;-)

Peter Harrison
www.4harrisons.blogspot.com


-
From:   "Alejandro Imass" 
Subject:Re: need help with php.
Date:   20th October 2010 21:28

On Wed, Oct 20, 2010 at 1:49 PM, Gary Kline  wrote:
> On Wed, Oct 20, 2010 at 12:42:36PM +0300, Odhiambo Washington wrote:
>> On Wed, Oct 20, 2010 at 5:34 AM, Alejandro Imass  wrote:
>>
>         Anyway,  thanks, Wash, for your cookbook backup commands.   ((See, 
>         ***this***  is why I am not among the early adopters; it's why
>         I'm  still at 7.3, etc, etc.   )) 
>
>         Anyway,  I'll try backing up and trying again,
>
>         gary 

Yeah well, it's not so much the OS's fault here. I've said it before:
the PHP people are crazy and irresponsible with their upgrades. I have
never had these problems with Perl in the entire 5.x lifetime!!!

If you want to avoid future problems I'd drop PHP altogether. I ask
for appologies beforehand if this raises a language flame, but PHP
sucks in so many ways that it would just take me too long to write.
Use Perl.

Best,
Alejandro Imass
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: HP METAL FUSER FILM SLEEVE

[JACK]

Hello,



My name is lily , and I represent Meijialong Technology Co., Ltd  based in 
China. 

We are a professional factory producing laser printer and plotter parts .  Our 
range of products include:

-Fuser Film Sleeves (compatible and orignal ) 

-Fuser Assemblies

-Pressure Rollers

-Separation pads

-Printer Servers

-Maintenance Kits

-Carriage assemblies

-Belts for HP and Lexmark printers. 

We also carry consumables including Inkjet Cartridges, Toner Cartridges for HP, 
Canon, Lexmark among others.



If you have any questions or would like to explore further opportunities for 
our companies to work together please feel free to email me at any time.  We 
are happy to send you a price list and product catalogue on request.

Thank you for your time!






lily




 
MeiJiaLong Technology Compang limited
EMAIL:j...@meijialong.com
MSN:meijialon...@hotmail.com
SKYPE:happy88688868
TELL NO.: 86-755-83451214 
FAX NO.: 86-755-83451214
mobile:0086-13425181574
www.meijialong.com
http://www.alibaba.com/member/hk101366690.html
 
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Greybeards (Re: Netbooks & BSD)

[Julian H. Stacey]

Hi,
Reference:
> From: David Brodbeck  
> Date: Wed, 20 Oct 2010 14:58:40 -0700 
> Message-id:

David Brodbeck wrote:
> On Wed, Oct 20, 2010 at 1:10 PM, Arthur Chance  wrote:
> > On 10/20/10 20:46, Bob Hall wrote:
> > Getting back to reality, although I never did it (fortunately), a friend of
> > mine who was about a decade older than me (I'm mid/late 50s) had the
> > experience of programming microcode on a machine by inserting brass slugs
> > for 0s and ferrite slugs for 1s on a pin board. Anyone got any idea what
> > that was? He was (UK) military so maybe it wasn't a generally known box.
> 
> Don't know about that one, but some early desktop calculators (and I
> think some early computerized phone switching systems) used etched PC
> boards as ROM.  The HP 9100 had 32K of ROM on a 16-layer PC board
> using this method.

Some Hasler (a Swiss co.) leased telegraph message switching systemss M150
had that too. I designed some cards with DIL switches, After 1975 I think.

Cheers,
Julian
-- 
Julian Stacey: BSD Unix Linux C Sys Eng Consultants Munich http://berklix.com
Mail plain text;  Not HTML, quoted-printable & base 64 spam formats.
Avoid top posting, it cripples itemised cumulative responses.
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Greybeards (Re: Netbooks & BSD)

[krad]

On 20 October 2010 21:10, Arthur Chance  wrote:

> On 10/20/10 20:46, Bob Hall wrote:
>
>> On Wed, Oct 20, 2010 at 12:07:55PM -0500, Tim Daneliuk wrote:
>>
>>> On 10/20/2010 11:55 AM, Gary Kline wrote:
>>>
 On Wed, Oct 20, 2010 at 12:47:38AM -0700, per...@pluto.rain.com wrote:

> Matthias Apitz  wrote:
>
>> El d?a Tuesday, October 19, 2010 a las 07:29:46PM -0700, Gary Kline
>> escribi?:
>>
>>>PS:  I really _was_ current on hardware stuff.  Back in the
>>> VAX
>>>780 days :-)
>>>
>> I booted my first UNIX V7 tape on a PDP-11 around 1982, I think.
>>
>
> Gotcha beat :)  UNIX V6, PDP-11/34, RK05 disk cartridge, 1975.
> The whole runtime fit on one RK05.  The sources took a second one.
>

I remember the 11/34 fondly.  The whole EE department at Cory
Hall was running one one; then when I interned at Livermore my
job of porting the "Portable F77 Compiler" was done with vi and
the source code that Stu Feldman wrote.  I love[d] those bloody
old computers, :-)  Dunno why.   Maybe because they really
*were* about computing.  Not streaming [[whatever]] or having
php running.  (Blah^9^9^9)

:)

>>>
>>> Heck, when I started out, they didn't even have zeros and ones yet.
>>> We had to settle for "o"s and "l"s ...
>>>
>>
>> When I started out, we didn't have read/write heads for the hard disks.
>> We had to copy the data from the screen to the disk by hand using
>> magnetized sewing needles. In order to read the damn things we had to
>> pass a compass over the disk and see where the needle deflected.
>>
>
> Enough Monty Python Yorkshiremen claims, already. :-)
>
> Getting back to reality, although I never did it (fortunately), a friend of
> mine who was about a decade older than me (I'm mid/late 50s) had the
> experience of programming microcode on a machine by inserting brass slugs
> for 0s and ferrite slugs for 1s on a pin board. Anyone got any idea what
> that was? He was (UK) military so maybe it wasn't a generally known box.
>
>
> --
> "Although the wombat is real and the dragon is not, few know what a
> wombat looks like, but everyone knows what a dragon looks like."
>
>-- Avram Davidson, _Adventures in Unhistory_
> ___
> freebsd-questions@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "
> freebsd-questions-unsubscr...@freebsd.org"
>


My dad used to smooth the stones for his *abaci* 8))
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

How FreeBSD Handles a DNS that is Down

[Martin McCormick]

This is an extremely novice question on my part, but
after what I recently witnessed, I am not so sure I understand
all I know.

The normal procedure on internet-connected systems is to
set the resolv.conf file to include at least 2 domain name
servers. Example:

nameserver  139.78.100.1
nameserver  139.78.200.1

Last night, I had to take down our primary DNS for
maintenance and lots of systems began having trouble of various
kinds.

While I expected the FreeBSD system I was on to hang for
a couple of seconds and then start using the second DNS, it
basically froze while some Linux boxes also began exhibiting
similar behavior.

I finally manually changed the resolv.conf on the system
I was using to force the slave DNS to be first in the list and
that helped, but loosing the primary DNS was not the slight
slowdown one might expect. It was a full-blown outage.

Are we missing some other configuration directive for Unix systems
that would make the systems use the redundancy a little
more gracefully than what happened? Otherwise, why have it if
somebody has to manually intervene? The only thing we should
have lost was dynamic updates. The systems that I know that were
basically hosed were FreeBSD and Linux. As soon as the mother
ship came back on line, everything was sweetness and light.

Thanks for any thoughts on this issue. I have only been
running DNS for around 18 years and we fortunately do not get to
see this condition often and when we do, it's hopefully for very
short periods, but the disruption is total.

Martin McCormick WB5AGZ  Stillwater, OK 
Systems Engineer
OSU Information Technology Department Telecommunications Services Group
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Greybeards (Re: Netbooks & BSD)

[Robert Bonomi]

> From owner-freebsd-questi...@freebsd.org  Wed Oct 20 15:04:17 2010
> From: Mike Jeays 
> To: Bob Hall ,
> FreeBSD Mailing List 
> Date: Wed, 20 Oct 2010 16:05:34 -0400
> Cc: 
> Subject: Re: Greybeards (Re: Netbooks & BSD)
>
> On October 20, 2010 03:46:06 pm Bob Hall wrote:
> > On Wed, Oct 20, 2010 at 12:07:55PM -0500, Tim Daneliuk wrote:
> > > On 10/20/2010 11:55 AM, Gary Kline wrote:
> > > > On Wed, Oct 20, 2010 at 12:47:38AM -0700, per...@pluto.rain.com wrote:
> > > >> Matthias Apitz  wrote:
> > > >>> El d?a Tuesday, October 19, 2010 a las 07:29:46PM -0700, Gary Kline 
> escribi?:
> > >   PS:  I really _was_ current on hardware stuff.  Back in the VAX
> > >   780 days :-)
> > > >>> 
> > > >>> I booted my first UNIX V7 tape on a PDP-11 around 1982, I think.
> > > >> 
> > > >> Gotcha beat :)  UNIX V6, PDP-11/34, RK05 disk cartridge, 1975.
> > > >> The whole runtime fit on one RK05.  The sources took a second one.
> > > >> 
> > > > I remember the 11/34 fondly.  The whole EE department at Cory
> > > > Hall was running one one; then when I interned at Livermore my
> > > > job of porting the "Portable F77 Compiler" was done with vi and
> > > > the source code that Stu Feldman wrote.  I love[d] those bloody
> > > > old computers, :-)  Dunno why.   Maybe because they really
> > > > *were* about computing.  Not streaming [[whatever]] or having
> > > > php running.  (Blah^9^9^9)
> > > > 
> > > > :)
> > > 
> > > Heck, when I started out, they didn't even have zeros and ones yet.
> > > We had to settle for "o"s and "l"s ...
> > 
> > When I started out, we didn't have read/write heads for the hard disks.
> > We had to copy the data from the screen to the disk by hand using
> > magnetized sewing needles. In order to read the damn things we had to
> > pass a compass over the disk and see where the needle deflected.
>
> OK, I guess you win! End-of-thread time?

Well, if one is going to get into that kind of bragging, the first *mainframe*
I worked on didn't have any disks at all. purely mag-tape based.   An early-
generation IBM system/360 with a whopping 64k words of _core_ memory.  The 
operating system was "TOS" (the ape perating ystem), predecessor of
DOS, which the machine was upgraded to when they got a couple of hard-disks
for it.  Single user, bare-bones batch processing,  punch-card input.  late 
1960s.

___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Greybeards (Re: Netbooks & BSD)

[Robert Bonomi]

> From owner-freebsd-questi...@freebsd.org  Thu Oct 21 02:18:28 2010
> Date: Thu, 21 Oct 2010 08:20:07 +0100
> From: Arthur Chance 
> To: FreeBSD-Questions 
> Subject: Re: Greybeards (Re: Netbooks & BSD)
>
> On 10/20/10 23:07, Gary Kline wrote:
> > On Wed, Oct 20, 2010 at 09:10:28PM +0100, Arthur Chance wrote:
> >> On 10/20/10 20:46, Bob Hall wrote:
> >>> On Wed, Oct 20, 2010 at 12:07:55PM -0500, Tim Daneliuk wrote:
>  On 10/20/2010 11:55 AM, Gary Kline wrote:
> > On Wed, Oct 20, 2010 at 12:47:38AM -0700, per...@pluto.rain.com wrote:
> >> Matthias Apitz   wrote:
> >>> El d?a Tuesday, October 19, 2010 a las 07:29:46PM -0700, Gary Kline 
> >>> escribi?:
>   PS:  I really _was_ current on hardware stuff.  Back in the VAX
>   780 days :-)
> >>> I booted my first UNIX V7 tape on a PDP-11 around 1982, I think.
> >>
> >> Gotcha beat :)  UNIX V6, PDP-11/34, RK05 disk cartridge, 1975.
> >> The whole runtime fit on one RK05.  The sources took a second one.
> >
> > I remember the 11/34 fondly.  The whole EE department at Cory
> > Hall was running one one; then when I interned at Livermore my
> > job of porting the "Portable F77 Compiler" was done with vi and
> > the source code that Stu Feldman wrote.  I love[d] those bloody
> > old computers, :-)  Dunno why.   Maybe because they really
> > *were* about computing.  Not streaming [[whatever]] or having
> > php running.  (Blah^9^9^9)
> >
> > :)
> 
>  Heck, when I started out, they didn't even have zeros and ones yet.
>  We had to settle for "o"s and "l"s ...
> >>>
> >>> When I started out, we didn't have read/write heads for the hard disks.
> >>> We had to copy the data from the screen to the disk by hand using
> >>> magnetized sewing needles. In order to read the damn things we had to
> >>> pass a compass over the disk and see where the needle deflected.
> >>
> >> Enough Monty Python Yorkshiremen claims, already. :-)
> >>
> >> Getting back to reality, although I never did it (fortunately), a
> >> friend of mine who was about a decade older than me (I'm mid/late
> >> 50s) had the experience of programming microcode on a machine by
> >> inserting brass slugs for 0s and ferrite slugs for 1s on a pin
> >> board. Anyone got any idea what that was? He was (UK) military so
> >> maybe it wasn't a generally known box.
> >>
> >
> > This microcode programming sounds just vagely familiar; seems like
> > mid/late-80's or early-90's. Am i right?  --Most uses for
> > supercomputers are mil/spooks/<<>>; that's the only reason the
> > idea might have floated past me.
>
> No, this was circa 1970. I met him in 1975 and and it was past history 
> for him then. He was Royal Air Force, if that gives a clue, and 
> certainly wasn't a super - he talked about it as if it were a fairly 
> dumb mini.

That =had= to have been some kind of fairly specialized, and -very- limited
capability, hardware.  Probably a crypto translator.


___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: How FreeBSD Handles a DNS that is Down

[Matthias Apitz]

El día Thursday, October 21, 2010 a las 06:22:15AM -0500, Martin McCormick 
escribió:

>   This is an extremely novice question on my part, but
> after what I recently witnessed, I am not so sure I understand
> all I know.
> 
>   The normal procedure on internet-connected systems is to
> set the resolv.conf file to include at least 2 domain name
> servers. Example:
> 
> nameserver139.78.100.1
> nameserver139.78.200.1
> 
>   Last night, I had to take down our primary DNS for
> maintenance and lots of systems began having trouble of various
> kinds.
...

The man page of resolv.conf states that the DNS are queried in that
order and if one timed out the next is queried; and this is that way for
any new resolver request; I've put one which does not exist as first
entry (10.0.1.99) and the existing in 2nd place (10.0.1.201) and checked
with tcpdump what happened when I do 'ping www.muc.de' three times:

# tcpdump -n host 10.0.1.99 or host 10.0.1.201
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on wlan0, link-type EN10MB (Ethernet), capture size 96 bytes
13:37:43.401553 IP 10.49.96.52.44280 > 10.0.1.99.53: 13264+ A?  www.muc.de. (28)
13:37:48.403868 IP 10.49.96.52.15468 > 10.0.1.201.53: 13264+ A?  www.muc.de. 
(28)
13:37:48.430125 IP 10.0.1.201.53 > 10.49.96.52.15468: 13264 1/0/0 A 
193.149.48.8 (44)


13:37:59.240499 IP 10.49.96.52.42369 > 10.0.1.99.53: 36140+ A?  www.muc.de. (28)
13:38:04.242653 IP 10.49.96.52.28001 > 10.0.1.201.53: 36140+ A?  www.muc.de. 
(28)
13:38:04.244321 IP 10.0.1.201.53 > 10.49.96.52.28001: 36140 1/0/0 A 
193.149.48.8 (44)


13:38:14.964752 IP 10.49.96.52.24065 > 10.0.1.99.53: 39922+ A?  www.muc.de. (28)
13:38:19.967153 IP 10.49.96.52.19756 > 10.0.1.201.53: 39922+ A?  www.muc.de. 
(28)
13:38:19.968822 IP 10.0.1.201.53 > 10.49.96.52.19756: 39922 1/0/0 A 
193.149.48.8 (44)

This mean that it will at least slow down any new network connection

HIH

matthias


-- 
Matthias Apitz
t +49-89-61308 351 - f +49-89-61308 399 - m +49-170-4527211
e  - w http://www.unixarea.de/
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: How FreeBSD Handles a DNS that is Down

[RW]

On Thu, 21 Oct 2010 06:22:15 -0500
Martin McCormick  wrote:

>   Last night, I had to take down our primary DNS for
> maintenance and lots of systems began having trouble of various
> kinds.
> 
>   While I expected the FreeBSD system I was on to hang for
> a couple of seconds and then start using the second DNS, it
> basically froze while some Linux boxes also began exhibiting
> similar behavior.
> 
>   I finally manually changed the resolv.conf on the system
> I was using to force the slave DNS to be first in the list and
> that helped, but loosing the primary DNS was not the slight
> slowdown one might expect. It was a full-blown outage.

It works for me. The rules aren't 100% consistent, because some
software parses resolv.conf, or uses configured servers, and then goes
direct to the nameserver. 

Have you checked your firewall? Or maybe there is some difference
between the two server.

___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Netbooks & BSD

[Polytropon]

On Wed, 20 Oct 2010 14:54:21 -0700, David Brodbeck  wrote:
> Fortunately, USB mass storage devices are highly standardized.  One of
> the things they got right.

Highly, but not fully. In some cases, manufacturers "know better"
and produce memory sticks that don't work on FreeBSD as they do
require some "driver" (no idea what is meant) to be accessible.
They seem to vialote the standards for USB direct access, so the
system gets into trouble (because it has to work with an obviously
defective storage media).

Here's an example of a stick I returned to the shop the same day,
said "It's broken, money back." with a dmesg + fdisk printout on
tractor paper (always looks impressive). :-)

umass0:  on uhub2
da0 at umass-sim0 bus 0 target 0 lun 0
da0:  Removable Direct Access SCSI-0 device 
da0: 40.000MB/s transfers
da0: Attempt to query device size failed: UNIT ATTENTION, Medium not present
umass0: at uhub2 port 2 (addr 2) disconnected
(da0:umass-sim0:0:0:0): lost device
(da0:umass-sim0:0:0:0): removing device entry
umass0: detached

I couldn't not format it (it was some FAT format on it) as it
detached from the system by itself as soon as accessed.



> Now, the USB keyboard protocol...ugh, they really dropped the ball on
> that one.  It's standardized, which is good, but it's a polling
> interface and tends to occasionally lose events under high CPU load,
> which is bad.  Especially if it's a key-up event that gets lost.

USB mice suffer from the same problem - the polling. In the past,
I never had problems with interrupt-driven (serial and PS/2)
equipment, even on lowest-end (!) hardware. Today, some load can
render the system nearly inresponsive for several seconds (no
keyboard input, mouse stopped).




-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Greybeards (Re: Netbooks & BSD)

[RW]

On Wed, 20 Oct 2010 21:10:28 +0100
Arthur Chance  wrote:


> 50s) had the experience of programming microcode on a machine by
> inserting brass slugs for 0s and ferrite slugs for 1s on a pin board.

I wonder why it was brass/ferrite rather than brass/empty or
ferrite/empty.
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

freeradius snmp support

[Omer Faruk SEN]

Hi,

I have read in this mailing list that snmp support of  freeradius
(radiusd) has some issues and it was removed. What is the current (as
of 2.1.10) status of snmp support in radiusd?

Regards.


PS: I may have fully misunderstood this issue because it had been
really very long time. I couldn't able to find the mail from archives
so I wanted to ask it to this list.
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Greybeards (Re: Netbooks & BSD)

[Arthur Chance]

On 10/21/10 13:38, RW wrote:

On Wed, 20 Oct 2010 21:10:28 +0100
Arthur Chance  wrote:



50s) had the experience of programming microcode on a machine by
inserting brass slugs for 0s and ferrite slugs for 1s on a pin board.


I wonder why it was brass/ferrite rather than brass/empty or
ferrite/empty.


Dredging up physics unused for 30+ years, ferrite is ferromagnetic and 
intensifies magnetic fields so a coil of wire with ferrite inside is a 
massively bigger inductor then an empty coil. I vaguely remember that 
brass is slightly diamagnetic, but could be mistaken. If it is, then it 
would have the opposite effect and reduce the inductance, so you'd get a 
better difference in signal between brass/ferrite than air/ferrite. 
Air/brass would give very small differences in signal, and we're talking 
about the times when 7400 TTL logic with 4 gates per package was state 
of the art, so big signals were good.


--
"Although the wombat is real and the dragon is not, few know what a
wombat looks like, but everyone knows what a dragon looks like."

-- Avram Davidson, _Adventures in Unhistory_
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Greybeards (Re: Netbooks & BSD)

[Alex Stangl]

On Thu, Oct 21, 2010 at 01:38:44PM +0100, RW wrote:
> On Wed, 20 Oct 2010 21:10:28 +0100
> Arthur Chance  wrote:
> > 50s) had the experience of programming microcode on a machine by
> > inserting brass slugs for 0s and ferrite slugs for 1s on a pin board.
> 
> I wonder why it was brass/ferrite rather than brass/empty or
> ferrite/empty.

I was wondering the same thing. I suspect one of them may be equivalent
to empty electrically, however this way is less errorprone,
explicitly populating each slot, rather than relying upon empty,
which could in fact be a mistaken omission.

Alex
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Netbooks & BSD

[RW]

On Thu, 21 Oct 2010 14:33:46 +0200
Polytropon  wrote:


> I couldn't not format it (it was some FAT format on it) as it
> detached from the system by itself as soon as accessed.

It might just have been faulty. If it couldn't be accessed as a normal
device, how would the driver get installed in the first place? 
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: need help with php.

[Alejandro Imass]

On Thu, Oct 21, 2010 at 4:53 AM,   wrote:
> Sorry for top posting - I'm stuck on my phone.
>
> Shouldn't that be:
>
> use perl;
>

That is correct sir! ;-)

> ;-)
>
> Peter Harrison
> www.4harrisons.blogspot.com
>
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Netbooks & BSD

[Antonio Olivares]

On Thu, Oct 21, 2010 at 7:33 AM, Polytropon  wrote:
> On Wed, 20 Oct 2010 14:54:21 -0700, David Brodbeck  wrote:
>> Fortunately, USB mass storage devices are highly standardized.  One of
>> the things they got right.
>
> Highly, but not fully. In some cases, manufacturers "know better"
> and produce memory sticks that don't work on FreeBSD as they do
> require some "driver" (no idea what is meant) to be accessible.
> They seem to vialote the standards for USB direct access, so the
> system gets into trouble (because it has to work with an obviously
> defective storage media).
>
> Here's an example of a stick I returned to the shop the same day,
> said "It's broken, money back." with a dmesg + fdisk printout on
> tractor paper (always looks impressive). :-)
>
> umass0:  on uhub2
> da0 at umass-sim0 bus 0 target 0 lun 0
> da0:  Removable Direct Access SCSI-0 device
> da0: 40.000MB/s transfers
> da0: Attempt to query device size failed: UNIT ATTENTION, Medium not present
> umass0: at uhub2 port 2 (addr 2) disconnected
> (da0:umass-sim0:0:0:0): lost device
> (da0:umass-sim0:0:0:0): removing device entry
> umass0: detached
>
> I couldn't not format it (it was some FAT format on it) as it
> detached from the system by itself as soon as accessed.
>
>
I had such a Usb stick, Went to get u3 removal tool and then removed
it and the usb becomes good again :)

Those Cruzer Mini's with the U3 software give lots of trouble.  First
remove the U3 crap from them and then they should work well :)


>
>> Now, the USB keyboard protocol...ugh, they really dropped the ball on
>> that one.  It's standardized, which is good, but it's a polling
>> interface and tends to occasionally lose events under high CPU load,
>> which is bad.  Especially if it's a key-up event that gets lost.
>
> USB mice suffer from the same problem - the polling. In the past,
> I never had problems with interrupt-driven (serial and PS/2)
> equipment, even on lowest-end (!) hardware. Today, some load can
> render the system nearly inresponsive for several seconds (no
> keyboard input, mouse stopped).
>
>

This is true.  I had some problems making a usb mouse work, but I had
to manually plug it in to different usb slots till it worked from the
start.  The keyboard(usb) sometimes takes a while longer to respond
than the PS2 one, but as long as I can get some work done.

Regards,

Antonio

>
> --
> Polytropon
> Magdeburg, Germany
> Happy FreeBSD user since 4.0
> Andra moi ennepe, Mousa, ...
> ___
> freebsd-questions@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
>
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Netbooks & BSD

[Polytropon]

On Thu, 21 Oct 2010 09:01:56 -0500, Antonio Olivares  
wrote:
> This is true.  I had some problems making a usb mouse work, but I had
> to manually plug it in to different usb slots till it worked from the
> start.  The keyboard(usb) sometimes takes a while longer to respond
> than the PS2 one, but as long as I can get some work done.

Yes - an observation I had starting with FreeBSD 7 (still 
on my home desktop): The keyboard is sometimes detected during
boot, and sometimes some time AFTER the login prompt is
presented (which implies that I cannot log in to the
system as the keyboard is logically not present); and in
some few cases, I need to re-plugin the keyboard. The
strange thing: I didn't have that behaviour on FreeBSD 5
(my home system until crash). It might have something to
do with the work done at the USB subsystem. On FreeBSD
5, the mouse and keyboard resulted in this message:

% dmesg | grep "^u[km]"
ums0: Sun Microsystems Type 6 USB mouse, 
rev 1.00/1.02, addr 2, iclass 3/1
ums0: 3 buttons
ukbd0: Sun Microsystems Type 6 USB keyboard, 
rev 1.00/1.02, addr 3, iclass 3/1

Since I moved to FreeBSD 7 (didn't use 6 at home), I
just get this - on the SAME system:

% dmesg | grep "^u[km]"
ums0:  on uhub1
ums0: 3 buttons.
ukbd0:  on uhub1

Still everything works as before. Strange...




-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Netbooks & BSD

[Lowell Gilbert]

David Brodbeck  writes:

> On Wed, Oct 20, 2010 at 2:42 PM, Lowell Gilbert
>  wrote:
>> The plug isn't the issue.  Drivers are.
>
> Fortunately, USB mass storage devices are highly standardized.  One of
> the things they got right.

ATAPI devices passed through a converter to USB often don't work as
nicely.  The context wasn't related to umass.
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Greybeards (Re: Netbooks & BSD)

[RW]

On Thu, 21 Oct 2010 14:32:23 +0100
Arthur Chance  wrote:

> On 10/21/10 13:38, RW wrote:
> > On Wed, 20 Oct 2010 21:10:28 +0100
> > Arthur Chance  wrote:
> >
> >
> >> 50s) had the experience of programming microcode on a machine by
> >> inserting brass slugs for 0s and ferrite slugs for 1s on a pin
> >> board.
> >
> > I wonder why it was brass/ferrite rather than brass/empty or
> > ferrite/empty.
> 
> Dredging up physics unused for 30+ years, ferrite is ferromagnetic
> and intensifies magnetic fields so a coil of wire with ferrite inside
> is a massively bigger inductor then an empty coil. I vaguely remember
> that brass is slightly diamagnetic, but could be mistaken. If it is,
> then it would have the opposite effect and reduce the inductance, so
> you'd get a better difference in signal between brass/ferrite than
> air/ferrite. 

Possibly. I'm wondering if there might be three states, where the third
state is writable.

> Air/brass would give very small differences in signal,

I was thinking in that case it would be open/short circuit.
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Greybeards (Re: Netbooks & BSD)

[Henry Olyer]

My first machine was an IBM 1620, but hey, at least we had an actual disk.
 A couple of 2311's.

To quote a fellow I used to consult for, two days' I had solved a
particularly nasty programming problem for his company, "But what have you
done for us lately?"



On Thu, Oct 21, 2010 at 10:57 AM, RW  wrote:

> On Thu, 21 Oct 2010 14:32:23 +0100
> Arthur Chance  wrote:
>
> > On 10/21/10 13:38, RW wrote:
> > > On Wed, 20 Oct 2010 21:10:28 +0100
> > > Arthur Chance  wrote:
> > >
> > >
> > >> 50s) had the experience of programming microcode on a machine by
> > >> inserting brass slugs for 0s and ferrite slugs for 1s on a pin
> > >> board.
> > >
> > > I wonder why it was brass/ferrite rather than brass/empty or
> > > ferrite/empty.
> >
> > Dredging up physics unused for 30+ years, ferrite is ferromagnetic
> > and intensifies magnetic fields so a coil of wire with ferrite inside
> > is a massively bigger inductor then an empty coil. I vaguely remember
> > that brass is slightly diamagnetic, but could be mistaken. If it is,
> > then it would have the opposite effect and reduce the inductance, so
> > you'd get a better difference in signal between brass/ferrite than
> > air/ferrite.
>
> Possibly. I'm wondering if there might be three states, where the third
> state is writable.
>
> > Air/brass would give very small differences in signal,
>
> I was thinking in that case it would be open/short circuit.
> ___
> freebsd-questions@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "
> freebsd-questions-unsubscr...@freebsd.org"
>
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

/usr/local/lib/compat and /usr/local/lib/compat/pkg

[Joe Auty]

The other night I spent some frustrating time discovering that after
updating from 7.2 to 8.1, for some reason some of the libraries in
/usr/local/lib/compat/pkg were 32 bit on my 64 bit system which was
causing several of my binaries to generate "unsupported filesystem
layout" errors. I ended up copying the ones from /usr/local/lib/compat
into /usr/local/lib/compat/pkg which seemed to fix the problem.

Will this solution end up hurting me? Was there an official pathname
change to phase out the pkg directory at some point that might warrant
updating all of my packages (which I forgot to do)?


-- 
Joe Auty, NetMusician
NetMusician helps musicians, bands and artists create beautiful,
professional, custom designed, career-essential websites that are easy
to maintain and to integrate with popular social networks.
www.netmusician.org 
j...@netmusician.org 

___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: /usr/local/lib/compat and /usr/local/lib/compat/pkg

[Dan Nelson]

In the last episode (Oct 21), Joe Auty said:
> The other night I spent some frustrating time discovering that after
> updating from 7.2 to 8.1, for some reason some of the libraries in
> /usr/local/lib/compat/pkg were 32 bit on my 64 bit system which was
> causing several of my binaries to generate "unsupported filesystem
> layout" errors. I ended up copying the ones from /usr/local/lib/compat
> into /usr/local/lib/compat/pkg which seemed to fix the problem.

Did you also do a 32-> 64-bit migration at some point?  You probably should
have moved everything in /usr/local/lib/compat to /usr/local/lib32 then to
avoid problems.  32-bit apps shouldn't look for their shlibs in
/usr/local/lib on a 64-bit system.  You can manually move any remaining ones
by using the "file" command to identify 32-bit files, then moving them (or
removing them if you have no 32-bit apps anymore).

-- 
Dan Nelson
dnel...@allantgroup.com
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Netbooks & BSD

[Jerry]

On Thu, 21 Oct 2010 14:33:46 +0200
Polytropon  articulated:

> umass0:  on
> uhub2 da0 at umass-sim0 bus 0 target 0 lun 0
> da0:  Removable Direct Access SCSI-0
> device da0: 40.000MB/s transfers
> da0: Attempt to query device size failed: UNIT ATTENTION, Medium not
> present umass0: at uhub2 port 2 (addr 2) disconnected
> (da0:umass-sim0:0:0:0): lost device
> (da0:umass-sim0:0:0:0): removing device entry
> umass0: detached
> 
> I couldn't not format it (it was some FAT format on it) as it
> detached from the system by itself as soon as accessed.

I suppose it was possible that it was an "exFAT" format
; although, unlikely. Using a
similar stick, I am getting this output:

root: Unknown USB device: vendor 0x0781 product 0x5530 bus uhub1
kernel: ugen1.2:  at usbus1
kernel: umass1:  on usbus1
kernel: umass1:  SCSI over Bulk-Only; quirks = 0x
kernel: umass1:3:1:-1: Attached to scbus3
kernel: da4 at umass-sim1 bus 1 scbus3 target 0 lun 0
kernel: da4:  Removable Direct Access SCSI-0 device 
kernel: da4: 40.000MB/s transfers
kernel: da4: 3835MB (7856127 512 byte sectors: 255H 63S/T 489C)

Maybe yours was really just broken. There are suppose to be a flood of
counterfeit ones being pushed through various markets. Mislabeling being
the most common problem. Apparently, it is more prevalent in Europe
than the USA at present.

-- 
Jerry ✌
freebsd.u...@seibercom.net

Disclaimer: off-list followups get on-list replies or get ignored.
Please do not ignore the Reply-To header.
__

___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: /usr/local/lib/compat and /usr/local/lib/compat/pkg

[Joe Auty]

Dan Nelson wrote:
> In the last episode (Oct 21), Joe Auty said:
>> The other night I spent some frustrating time discovering that after
>> updating from 7.2 to 8.1, for some reason some of the libraries in
>> /usr/local/lib/compat/pkg were 32 bit on my 64 bit system which was
>> causing several of my binaries to generate "unsupported filesystem
>> layout" errors. I ended up copying the ones from /usr/local/lib/compat
>> into /usr/local/lib/compat/pkg which seemed to fix the problem.
>
> Did you also do a 32-> 64-bit migration at some point?  You probably should
> have moved everything in /usr/local/lib/compat to /usr/local/lib32 then to
> avoid problems.  32-bit apps shouldn't look for their shlibs in
> /usr/local/lib on a 64-bit system.  You can manually move any remaining ones
> by using the "file" command to identify 32-bit files, then moving them (or
> removing them if you have no 32-bit apps anymore).
>
Nope, there was never a 32 -> 64 bit migration or vice versa. However,
doing a:

file /usr/local/lib/compat/pkg/libcrypt.so.4

indicated that several of these libraries in compat/pkg were i386 rather
than amd64.



-- 
Joe Auty, NetMusician
NetMusician helps musicians, bands and artists create beautiful,
professional, custom designed, career-essential websites that are easy
to maintain and to integrate with popular social networks.
www.netmusician.org 
j...@netmusician.org 

___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Re: Netbooks & BSD

[Gary Kline]

On Wed, Oct 20, 2010 at 02:26:36PM -0700, Kevin Oberman wrote:
> > Date: Wed, 20 Oct 2010 14:15:46 -0700
> > From: Gary Kline 
> > Sender: owner-freebsd-mob...@freebsd.org
> > 
> > On Wed, Oct 20, 2010 at 11:32:01AM -0700, David Brodbeck wrote:
> > > On Wed, Oct 20, 2010 at 10:32 AM, Gary Kline  wrote:
> > > >        Sure, the optical uses [I think] a USB connector.  Pretty sure
> > > >        that all these tiny "toys" are made at one factory! and then
> > > >        labeled by the vendor.  If all the opticals are essentially
> > > >        the same, then great.
> > > 
> > > I think they all pretty much follow the same standard. I've even had
> > > success using an IDE CD-ROM drive plugged into a USB-to-IDE adapter
> > > cable, before.
> > 
> > 
> > That kinda makes me laugh, because isn't the idea of USB to 
> > have *one* standard plug that fits into one jack?  --Seriously, 
> > my favorite "clicky" keyboard is a PS/2 and I have a USB adaptor 
> > that saved me.
> > 
> > The thing about the memsticks is that on my tower cases, you
> > have to get down and crawl around and find the jack...  Is there
> > such a thing as a USB "extender" cable, say, a meter or two long?  
> 
> Sure. My SmartCard token is plugged into one on my desk. Not knowing
> where you are I an only suggest Radio Shack or, if there is one near you,
> Frys. You can easily order one on-line for a LARGE number of
> vendors. Just remember that the maximum length of 5 meters.
> 
> I see prices for brand-name cables at about $8.


Oustanding; thanks for the datapoint.  There is a Frys a few
miles from me, but I usually buy online.  Five meters ... hm,
that would almost reach to the kitchen table:-)

My wife and daughter bought some of the memsticks last spring
to bup a DOS/Win and for daughter's MacBook: xfer files to and
from school.  Since it's a lot cheaper than buying an optical
drive, the flash memory is the way to go.

gary

PS: Seattle.


> -- 
> R. Kevin Oberman, Network Engineer
> Energy Sciences Network (ESnet)
> Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
> E-mail: ober...@es.netPhone: +1 510 486-8634
> Key fingerprint:059B 2DDF 031C 9BA3 14A4  EADA 927D EBB3 987B 3751

-- 
 Gary Kline  kl...@thought.org  http://www.thought.org  Public Service Unix
The 7.90a release of Jottings: http://jottings.thought.org/index.php
   http://journey.thought.org

___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Anybody know what causes "movie player" to return "ERR"?

[Gary Kline]

I don't think this is OS-specific, but this morning I *wasted* a few
hours trying to watch a DVD of "Dr. Strangelove."  I tried to dd the
iso into /usr/tmp, but that errored out too.  No, I have 0.0 intent
of wasting the diskspace on movies, but just wonder if why /dev/dvd
and /media fail.  Ubuntu.  To use my FBSD server I would have to
crawl down and mess with the tray, etc.  --Things usually just-work
with linux. 

Yeah, I am hip to this being a BSD list, and if no clues I will ry
my server before I return the movie to the library.  ...I would have
been a dollar that I could watch here at my desk.  Nope.

-- 
 Gary Kline  kl...@thought.org  http://www.thought.org  Public Service Unix
The 7.90a release of Jottings: http://jottings.thought.org/index.php
   http://journey.thought.org

___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"

Fatal trap 12: page fault while in kernel mode

[Michael Stellar]

Hi,
   I have got these after running Freebsd 8.1 Release p1 Amd64 for a couple
hours, i have done kernel debugging it seems has anything to do with
sched_ule? :

admin# kgdb kernel.debug /var/crash/vmcore.0
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "amd64-marcel-freebsd"...

Unread portion of the kernel message buffer:
kernel trap 12 with interrupts disabled


Fatal trap 12: page fault while in kernel mode
cpuid = 2; apic id = 02
fault virtual address   = 0x210
fault code  = supervisor read data, page not present
instruction pointer = 0x20:0x80392403
stack pointer   = 0x28:0xff869b30
frame pointer   = 0x28:0xff869ba0
code segment= base 0x0, limit 0xf, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags= resume, IOPL = 0
current process = 12 (swi4: clock)
trap number = 12
panic: page fault
cpuid = 2
Uptime: 3h43m34s
Physical memory: 4073 MB
Dumping 2401 MB: 2386

Fatal trap 1: privileged instruction fault while in kernel mode
cpuid = 1; apic id = 01
instruction pointer = 0x20:0xff8695a0
stack pointer   = 0x28:0xff80ae41bb30
frame pointer   = 0x28:0xff80ae41bb60
code segment= base 0x0, limit 0xf, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags= interrupt enabled, resume, IOPL = 0
current process = 12 (irq15: ata1)
trap number = 1
 2370 2354 2338 2322 2306 2290 2274 2258 2242 2226 2210 2194 2178 2162 2146
2130 2114 2098 2082 2066 2050 2034 2018 2002 1986 1970 1954 1938 1922 1906
1890 1874 1858 1842 1826 1810 1794 1778 1762 1746 1730 1714 1698 1682 1666
1650 1634 1618 1602 1586 1570 1554 1538 1522 1506 1490 1474 1458 1442 1426
1410 1394 1378 1362 1346 1330 1314 1298 1282 1266 1250 1234 1218 1202 1186
1170 1154 1138 1122 1106 1090 1074 1058 1042 1026 1010 994 978 962 946 930
914 898 882 866 850 834 818 802 786 770 754 738 722 706 690 674 658 642 626
610 594 578 562 546 530 514 498 482 466 450 434 418 402 386 370 354 338 322
306 290 274 258 242 226 210 194 178 162 146 130 114 98 82 66 50 34 18 2

Reading symbols from /boot/kernel/zfs.ko...Reading symbols from
/boot/kernel/zfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/zfs.ko
Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from
/boot/kernel/opensolaris.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/opensolaris.ko
Reading symbols from /boot/kernel/krpc.ko...Reading symbols from
/boot/kernel/krpc.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/krpc.ko
Reading symbols from /boot/kernel/geom_mirror.ko...Reading symbols from
/boot/kernel/geom_mirror.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/geom_mirror.ko
#0  doadump () at pcpu.h:223
223
(kgdb) list *0x80392403
0x80392403 is in softclock (/usr/src/sys/kern/kern_timeout.c:356).
351 cc->cc_softticks++;
352 bucket = &cc->cc_callwheel[curticks &
callwheelmask];
353 c = TAILQ_FIRST(bucket);
354 while (c) {
355 depth++;
356 if (c->c_time != curticks) {
357 c = TAILQ_NEXT(c, c_links.tqe);
358 ++steps;
359 if (steps >= MAX_SOFTCLOCK_STEPS) {
360 cc->cc_next = c;
(kgdb) list *0xff8695a0
No source file for address 0xff8695a0.
(kgdb) list *0xff8695a0
No source file for address 0xff8695a0.
(kgdb) backtrace
#0  doadump () at pcpu.h:223
#1  0x8037cf6a in boot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:416
#2  0x8037d399 in panic (fmt=0x80632a5c "%s") at
/usr/src/sys/kern/kern_shutdown.c:590
#3  0x805ae847 in trap_fatal (frame=0xff869a80,
eva=33554448) at /usr/src/sys/amd64/amd64/trap.c:777
#4  0x805af693 in trap (frame=0xff869a80) at
/usr/src/sys/amd64/amd64/trap.c:300
#5  0x80592674 in calltrap () at
/usr/src/sys/amd64/amd64/exception.S:223
#6  0x80392403 in softclock (arg=Variable "arg" is not available.
) at /usr/src/sys/kern/kern_timeout.c:355
#7  0x8035224d in intr_event_execute_handlers (p=Variable "p" is not
available.
) at /usr/src/sys/kern/kern_intr.c:1220
#8  0x80353962 in ithread_loop (arg=0xff000168b460) at
/usr/src/sys/kern/kern_intr.c:1233
#9  0x8034fb29 in fork_exit (callout=0x803538d0
, arg=0xff000168b460, frame=0x

Re: Netbooks & BSD

[Ian Smith]

On Thu, 21 Oct 2010, Gary Kline wrote:
 > On Wed, Oct 20, 2010 at 02:26:36PM -0700, Kevin Oberman wrote:
 > > > Date: Wed, 20 Oct 2010 14:15:46 -0700
 > > > From: Gary Kline 
[..]
 > > >  The thing about the memsticks is that on my tower cases, you
 > > >  have to get down and crawl around and find the jack...  Is there
 > > >  such a thing as a USB "extender" cable, say, a meter or two long?  
 > > 
 > > Sure. My SmartCard token is plugged into one on my desk. Not knowing
 > > where you are I an only suggest Radio Shack or, if there is one near you,
 > > Frys. You can easily order one on-line for a LARGE number of
 > > vendors. Just remember that the maximum length of 5 meters.
 > > 
 > > I see prices for brand-name cables at about $8.
 > 
 > 
 >  Oustanding; thanks for the datapoint.  There is a Frys a few
 >  miles from me, but I usually buy online.  Five meters ... hm,
 >  that would almost reach to the kitchen table:-)

I've seen recommendations of not exceeding 2m for USB 2.0, for video 
cams anyway, so suggest using a cable only as long as you need.

 >  My wife and daughter bought some of the memsticks last spring
 >  to bup a DOS/Win and for daughter's MacBook: xfer files to and
 >  from school.  Since it's a lot cheaper than buying an optical
 >  drive, the flash memory is the way to go.

I recall paying nearly AU$100 for my first 1GB stick some years ago, but 
recently picked up two 'Kingston DataTraveller G2' brand 8GB sticks (on 
sale, superceded model) for $30 each.  There are reports of troubles - 
eg for booting FreeBSD - with some of the cheaper no-name brands, and 
for example Soekris recommend only SanDisk flash, so don't scrimp.

If only using it to boot/install/fixit FreeBSD, there's currently no 
point buying larger than a 1GB stick; any more will be wasted, as so far 
sysinstall can only use 'dangerously dedicated' sticks (da0a rather than 
da0sXa), presumably because it detects sliced da devices as 'real' SCSI 
disks, but I'm really hoping to work around that someday, somehow :)

I want to be able to boot from a properly sliced stick with a normal 
boot0 menu to be able to install or run fixit for eg 8.1-R (amd64 or 
i386) of a full -RELEASE a la DVD with packages, a small R/W slice for 
saving dmesg output etc of a tested machine _and_ a small DOS-formatted 
slice (s1) to exchange stuff with windows/mac users, on the one stick.

But the latter is probably better another topic, for another time ..

cheers, Ian
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"