[9fans] usb and dns suddenly not working

[9fans] usb and dns suddenly not working

[Joel C. Salomon]

"But I didn't change anything!"

I've checked /rc/bin/termrc against my local history and the version
up on sources (via the web interface), and cannot find any significant
differences -- in fact, I've reverted to a previous version and the
problem remained.

Both USB and internet connectivity have suddenly stopped working on my
laptop.  When I run usbstart, I get
  usb/usbmouse: /dev/usb/1/ep0data: '/dev/usb/1/ep0data' does not exist

More critically, no matter what I do, I get
  % ip/ping google.com
  ip/ping: couldn't dial icmp!google.com!1: cs: temporary failure:
dns: dns failure
To make this problem more fun to diagnose, I can't copy files off my
laptop *except* via the network -- which used to work!

Does this problem sound familiar to someone?

--Joel

Re: [9fans] usb and dns suddenly not working

[erik quanstrom]

was /rc/bin/termrc the only file you changed?

for the usb, i would start by checking that '#U' exists in the kernel and that
usbstart gets executed by termrc.

- erik

Re: [9fans] usb and dns suddenly not working

[Joel C. Salomon]

On 4/25/07, erik quanstrom <quanstro@coraid.com> wrote:
> was /rc/bin/termrc the only file you changed?

~/lib/profile was untouched, termrc.local is from from my last pull
off of sources, and /lib/local/ndb hasn't changed in months.  Is there
any other file I might have changed that would break things this way?

> for the usb, i would start by checking that '#U' exists in the kernel and that
> usbstart gets executed by termrc.

Yes and yes; /dev/usb1/1/ep1data exists, but for some reason usbmouse
wants .../ep0data.  I've tried changing which USB port the mouse is
plugged in to (shouldn't matter, right) and I've gotten an error
either way, just don't recall if it's the same error.

--Joel

Re: [9fans] usb and dns suddenly not working

[Joel C. Salomon]

On 4/25/07, Joel C. Salomon <joelcsalomon@gmail.com> wrote:
> More critically, no matter what I do, I get
>   % ip/ping google.com
>   ip/ping: couldn't dial icmp!google.com!1: cs: temporary failure:
> dns: dns failure

Is there any chace at all that this is related to some of the recent
chages in ndb?

Is there something I can run to get helpful diagnostic information?

--Joel

Re: [9fans] usb and dns suddenly not working

[erik quanstrom]

have you determined if this is a networking problem or a dns problem?
is dns running?

- erik
On Wed Apr 25 18:05:20 EDT 2007, joelcsalomon@gmail.com wrote:
> On 4/25/07, Joel C. Salomon <joelcsalomon@gmail.com> wrote:
> > More critically, no matter what I do, I get
> >   % ip/ping google.com
> >   ip/ping: couldn't dial icmp!google.com!1: cs: temporary failure:
> > dns: dns failure
> 
> Is there any chace at all that this is related to some of the recent
> chages in ndb?
> 
> Is there something I can run to get helpful diagnostic information?
> 
> --Joel

Re: [9fans] usb and dns suddenly not working

[Joel C. Salomon]

On 4/25/07, erik quanstrom <quanstro@coraid.com> wrote:
> have you determined if this is a networking problem or a dns problem?

Whatever the problem is, networking or dns, it's restricted to my
laptop and very recent.  I guess my question ought to be: How can I
determine what the problem actually is?

> is dns running?

I think so:
  % term ps | grep dns
  chesky      46    0:00    0:00    364K Pread     dns

--Joel

Re: [9fans] usb and dns suddenly not working

[geoff]

Is there anything interesting in /sys/log/dns?
What does this print?

	ndb/dnsdebug . ns

Do you have /srv/dns and /net/dns files?

Re: [9fans] usb and dns suddenly not working

[Joel C. Salomon]

On 4/25/07, geoff@plan9.bell-labs.com <geoff@plan9.bell-labs.com> wrote:
> Is there anything interesting in /sys/log/dns?
	hymie <date & time> starting dns on 199.98.17.238
…
	hymie Apr 12 … starting dns resolver on 199.98.17.238's /net
	hymie Apr 24 18:28:47 starting dns resolver on 255.255.248.0's /net
…
	hymie Apr 25 16:09:34 starting dns resolver on 255.255.248.0's /net
	hymie Apr 25 16:13:29 starting dns resolver on 255.255.248.0's /net
	hymie Apr 25 16:13:29 error reading mntpt:
	hymie Apr 24 16:38:13 starting dns resolver on 255.255.248.0's /net
…

The initial date & times go from installation in Oct through last
reboot before any problems occurred, in December.  The system then ran
continuously until mid-April, at which point the message changed (or
is this significant?).  The next reboot was after a pull yesterday, at
which point errors occurred.

> What does this print?
>
>         ndb/dnsdebug . ns
	hymie Apr 25 18:55:52 [276] dnresolve1  2 1
	hymie Apr 25 18:55:52 [276] dnresolve1 5 1
	hymie Apr 25 18:55:52 rereading /net/ndb
	hymie Apr 25 18:55:52 rereading /lib/ndb/local
	hymie Apr 25 18:55:52 rereading /lib/ndb/common
	hymie Apr 25 18:55:52 rereading /lib/ndb/auth

> Do you have /srv/dns and /net/dns files?

They both exist (though ll reports the date for /srv/dns as Oct 19 --
is that normal?)

--Joel

Re: [9fans] usb and dns suddenly not working

[Steve Simon]

> ip/ping: couldn't dial icmp!google.com!1: cs: temporary failure:
> dns: dns failure

sounds very much like a dns problem to me.

check you have a dns server configured?
	cat /net/ndb

Is dns running?
	ps | grep dns

Try a dns query:
	ndb/dnsquery
	> www.google.com
		# note the '>' here is the prompt that dnsquery prints

Check that dns is working outside your box:
	ndb/dnsdebug
	> www.google.com
		# note the '>' here is the prompt that dnsdebug prints

Hopefully this should get you a bit further.

-Steve

Re: [9fans] usb and dns suddenly not working

[Joel C. Salomon]

On 4/25/07, Steve Simon <steve@quintile.net> wrote:
> > ip/ping: couldn't dial icmp!google.com!1: cs: temporary failure:
> > dns: dns failure
>
> sounds very much like a dns problem to me.
>
> check you have a dns server configured?
>         cat /net/ndb
My configuration is:
	term% cat /net/ndb
	ip=255.255.248.0 ipmask=/120 ipgw=199.98.16.1
		sys=hymie
	term% cat /lib/ndb/local
…
	ipnet=hymie.local ip=199.98.17.238 sys=hymie dom=hymie.cc.cooper.edu
		ether=00d059…
		auth=hymie authdom=hymie.local
		cpu=hymie fs=hymie proto=il
		dns=paperweight dnsdom=cooper.edu
		ntp=ntp.cooper.edu
		ipmask=255.255.248.0
		ipgw=199.98.16.1

	ip=199.98.16.9 sys=paperweight dom=paperweight.cooper.edu
…
The applicable line in /rc/term/termrc is
	ip/ipconfig -g 199.98.16.1 ether /net/ether0 199.98.17.238
255.255.248.0 > /dev/null >[2=1]

It looks like something's misconfigured -- but this configuration
*used* to work!

> Is dns running?
Looks like it is:
	% term ps | grep dns
	chesky	46	0:00	0:00	364K	Pread	dns

> Try a dns query:
	term% ndb/dnsquery
	> www.google.com
	!dns: dns failure

> Check that dns is working outside your box:
	term% ndb/dnsdebug
	> www.google.com
	!dns: dns failure
and the kernel prints:
	hymie Apr 25 18:37:39 [232] dnresolve1 www.google.com 1 1
	hymie Apr 25 18:37:39 [232] dnresolve1 www.google.com 5 1
	hymie Apr 25 18:37:39 rereading /net/ndb
	hymie Apr 25 18:37:39 rereading /lib/ndb/local
	hymie Apr 25 18:37:39 rereading /lib/ndb/common
	hymie Apr 25 18:37:39 rereading /lib/ndb/auth

> Hopefully this should get you a bit further.

It has, thanks.  Now I *know* that I'm totally lost.  :)

--Joel

Re: [9fans] usb and dns suddenly not working

[geoff]

I think this more likely to be due to recent changes to ipconfig.  I
thought I'd pushed out some bug fixes but apparently hadn't.  I've
just pushed out new /sys/src/cmd/ip/ipconfig/main.c and
/386/bin/ip/ipconfig.  I think they'll fix your problems if you can
somehow get them onto your machine (by floppy if necessary).

Re: [9fans] usb and dns suddenly not working

[Joel C. Salomon]

On 4/25/07, geoff@plan9.bell-labs.com <geoff@plan9.bell-labs.com> wrote:
> I think this more likely to be due to recent changes to ipconfig.  I
> thought I'd pushed out some bug fixes but apparently hadn't.  I've
> just pushed out new /sys/src/cmd/ip/ipconfig/main.c and
> /386/bin/ip/ipconfig.  I think they'll fix your problems if you can
> somehow get them onto your machine (by floppy if necessary).

	term% ll /sys/src/cmd/ip/ipconfig/main.c
	--rw-rw-r-- M 8 sys sys 37908 Apr 20 14:06 main.c
	term% ll /386/bin/ip/ipconfig
	--rwxrwxr-x M 8 sys sys 158920 Apr 22 19:08 ipconfig

If you can give me a diff from those sources, I can type them in manually.

Thanks for the help,
--Joel

Re: [9fans] usb and dns suddenly not working

[erik quanstrom]

you may still have _ipconfig around.  this may get you far enough
to get the new ipconfig.

- erik

Re: [9fans] usb and dns suddenly not working

[Uriel]

Heard of yesterday(1)?

uriel

On 4/26/07, erik quanstrom <quanstro@coraid.com> wrote:
> you may still have _ipconfig around.  this may get you far enough
> to get the new ipconfig.
>
> - erik
>
>

Re: [9fans] usb and dns suddenly not working

[Skip Tavakkolian]

> Heard of yesterday(1)?

that's when all his troubles seemed so far away...

Re: [9fans] usb and dns suddenly not working

[Joel C. Salomon]

> > Heard of yesterday(1)?
>
> that's when all his troubles seemed so far away...

Actually, that's when my troubles started, but "the day before
yesterday" doesn't scan very well…

Re: [9fans] usb and dns suddenly not working

[Joel C. Salomon]

On 4/25/07, Uriel <uriel99@gmail.com> wrote:
> Heard of yesterday(1)?

Unusable in my setting; see the Bugs section of yesterday(1), and note
that I've been requested not to sing when anyone can hear me.  :)

--Joel

Re: [9fans] usb and dns suddenly not working

[Russ Cox]

> The applicable line in /rc/term/termrc is
> 	ip/ipconfig -g 199.98.16.1 ether /net/ether0 199.98.17.238
> 255.255.248.0 > /dev/null >[2=1]
> 
> It looks like something's misconfigured -- but this configuration
> *used* to work!

you're not totally lost.
you need to check whether you have any
connectivity at all.

ip/ping 199.98.16.1	# your gateway
ip/ping 199.98.16.9  # your dns server
ip/ping 18.26.4.9	# somewhere on the internet

then see if you can resolve something
using your dns server:

ndb/dnsdebug @199.98.16.9 www.google.com

or someone else's dns server:

ndb/dnsdebug @18.26.4.9 www.google.com

also, this part of your mail looks wrong:

	term% ndb/dnsdebug
	> www.google.com
	!dns: dns failure

dnsdebug doesn't print lines like !dns: dns failure.
only dnsquery does.  are you sure you didn't
run dnsquery twice?  

dnsdebug prints things like the output below.
even if nothing is working you should get the 
'sending to' line.

(the fact that you are typing into the interactive
prompt instead of specifying it on the command
line like in my example is not relevant.)

russ


% ndb/dnsdebug @18.26.4.9 plan9.bell-labs.com
20654.1: sending to 18.26.4.9/18.26.4.9 plan9.bell-labs.com ip
20654: rcvd OK from 18.26.4.9 ( recurse can_recurse)
	Q:    plan9.bell-labs.com ip
	Ans:  plan9.bell-labs.com              12 hr           ip   	204.178.31.2
	Auth: bell-labs.com                    11 hr 1 min 2 s ns   	dirty.research.bell-labs.com
	      bell-labs.com                    11 hr 1 min 2 s ns   	crufty.research.bell-labs.com
	      bell-labs.com                    11 hr 1 min 2 s ns   	ns1.research.bell-labs.com
	      bell-labs.com                    11 hr 1 min 2 s ns   	ns2.research.bell-labs.com
	Hint: ns1.research.bell-labs.com       4 hr 27 min 28  ip   	204.178.16.6
	      ns2.research.bell-labs.com       1 hr 16 min 11  ip   	204.178.16.49
	      dirty.research.bell-labs.com     1 hr 16 min 11  ip   	204.178.16.6
	      crufty.research.bell-labs.com    11 hr 1 min 2 s ip   	204.178.16.49
----------------------------
answer plan9.bell-labs.com              12 hr           ip   	204.178.31.2
----------------------------
% 

Re: [9fans] usb and dns suddenly not working

[Joel C. Salomon]

On 4/25/07, Russ Cox <rsc@swtch.com> wrote:
> you're not totally lost.
> you need to check whether you have any
> connectivity at all.
>
> ip/ping 199.98.16.1     # your gateway
> ip/ping 199.98.16.9  # your dns server
> ip/ping 18.26.4.9       # somewhere on the internet

These all work.

> then see if you can resolve something
> using your dns server:
>
> ndb/dnsdebug @199.98.16.9 www.google.com
>
> or someone else's dns server:
>
> ndb/dnsdebug @18.26.4.9 www.google.com

These both work as well.

> also, this part of your mail looks wrong:
>
>         term% ndb/dnsdebug
>         > www.google.com
>         !dns: dns failure
>
> dnsdebug doesn't print lines like !dns: dns failure.
> only dnsquery does.  are you sure you didn't
> run dnsquery twice?

I was copying stuff over and I mistyped the output.  What I actually got was:
        term% ndb/dnsdebug
        > www.google.com
        >
(no direct response) and the kernel messages I posted before.

--Joel

[9fans] Re: usb and dns suddenly not working

[Gabriel Diaz]

hello

i'm getting the same problem with the usb mouse.

It is a fresh install from May 12 cdrom, i will pull and see if
anything has changed.

Also, my sata (intel 82801GB 8086/27c0) isn't recognized from 9load
(it "hangs" but prints ctrl-alt-del message) but 9pxeload  works (or
used to work). I'll test this more.

gabi

Re: [9fans] Re: usb and dns suddenly not working

[erik quanstrom]

> Also, my sata (intel 82801GB 8086/27c0) isn't recognized from 9load
> (it "hangs" but prints ctrl-alt-del message) but 9pxeload  works (or
> used to work). I'll test this more.

what exactly does it print?

what sata/pata devices do you have connected?  from the vid,
it appears that you have the 82801gb in combined mode where
sata drives emulate legacy drives.  the first two should be found
and available through legacy i/o space.  evidently this is causing
some trouble.

one thing you could try is using bios to enable "enhanced sata mode"
but nothing else. this should give you the vid 27c4.  perhaps 9load
would be happy with that configuration.  there appears to be explicit
support.

this is a chipset that is supported by the sd63xxesb driver.  if you can
get past 9load, this driver might make things easier for you.  (you'll
need to compile your own kernel.)  i've had trouble with combined
mode in my terminal.

- erik

Re: [9fans] Re: usb and dns suddenly not working

[Gabriel Diaz]

hello

i tryed both combined mode and enhaced one, but 9load still hangs,
with enhaced mode 9pxeload used to work, i submited the ids as a patch
time ago, but seems 9load doesn't like them.

i will test again on the weekend and see if i can obtain more debug.

i have the sd63xxesb driver compiled in (9load and kernel), i will
compile again with debug options and will post the results.

thanks

gabi


On 5/21/07, erik quanstrom <quanstro@coraid.com> wrote:
> > Also, my sata (intel 82801GB 8086/27c0) isn't recognized from 9load
> > (it "hangs" but prints ctrl-alt-del message) but 9pxeload  works (or
> > used to work). I'll test this more.
>
> what exactly does it print?
>
> what sata/pata devices do you have connected?  from the vid,
> it appears that you have the 82801gb in combined mode where
> sata drives emulate legacy drives.  the first two should be found
> and available through legacy i/o space.  evidently this is causing
> some trouble.
>
> one thing you could try is using bios to enable "enhanced sata mode"
> but nothing else. this should give you the vid 27c4.  perhaps 9load
> would be happy with that configuration.  there appears to be explicit
> support.
>
> this is a chipset that is supported by the sd63xxesb driver.  if you can
> get past 9load, this driver might make things easier for you.  (you'll
> need to compile your own kernel.)  i've had trouble with combined
> mode in my terminal.
>
> - erik
>

Re: [9fans] Re: usb and dns suddenly not working

[erik quanstrom]

great.

i'm not sure what options your bios will present you with.  i would
recommend enabling pata, enabling sata enhanced mode but not
enabling the bios support for ahci.  you won't need that with os
support.

- erik