Networking/Discussion/General/Qnet not working with 6.5.0 APIC Image/List of Posts
 
Forum Topic - Qnet not working with 6.5.0 APIC Image: (11 Items)
   
Update
Mark Dowdy(deleted)
10/26/2010 2:05 PM
post72486
Qnet not working with 6.5.0 APIC Image   
We have two ‘new’ computers running the 6.5.0 APIC image. These two machines are connected together through a simple 
Linksys (Cisco) switch. Unfortunately, from a Qnet standpoint, each machine is an island and can’t detect its peer. I’
ve attached the Qnet troubleshooting information for the two machines. Any insights into why these two machines can’t 
see each other? The network adapters seem to be working; I collected the troubleshooting information using a PuTTY 
session from my laptop. Thanks.

Mark

P.S. At the request of our FAE, I tried connecting the two machines together using a crossover cable, same problem.
Attachment: Text mcc210.log 6.47 KB Text mcc212.log 6.44 KB
Hugh Brown(deleted)
10/26/2010 2:18 PM
post72489
Re: Qnet not working with 6.5.0 APIC Image   
Does an Œls /net¹ show anything on either of the machines? It appears that
the network adapters are working fine from the output that you sent.


On 10-10-26 2:05 PM, "Mark Dowdy" <community-noreply@qnx.com> wrote:

> We have two Œnew¹ computers running the 6.5.0 APIC image. These two machines
> are connected together through a simple Linksys (Cisco) switch. Unfortunately,
> from a Qnet standpoint, each machine is an island and can¹t detect its peer.
> I¹ve attached the Qnet troubleshooting information for the two machines. Any
> insights into why these two machines can¹t see each other? The network
> adapters seem to be working; I collected the troubleshooting information using
> a PuTTY session from my laptop. Thanks.
> 
> Mark
> 
> P.S. At the request of our FAE, I tried connecting the two machines together
> using a crossover cable, same problem.
> 
> 
> 
> 
> _______________________________________________
> 
> General
> http://community.qnx.com/sf/go/post72486
> 

-- 
Hugh Brown                      (613) 591-0931 ext. 2209 (voice)
QNX Software Systems Ltd.        (613) 591-3579           (fax)
175 Terence Matthews Cres.       email:  hsbrown@qnx.com
Kanata, Ontario, Canada.
K2M 1W8
Mark Dowdy(deleted)
10/26/2010 2:20 PM
post72490
Re: Qnet not working with 6.5.0 APIC Image   
There's only one entry in the /net directory of each machine, the local machine name.

Mark
Hugh Brown(deleted)
10/26/2010 2:32 PM
post72494
Re: Qnet not working with 6.5.0 APIC Image   
Are you running with regular MTU sizes ­ ie 1514? Can you ping each machine
from the other?


On 10-10-26 2:20 PM, "Mark Dowdy" <community-noreply@qnx.com> wrote:

> There's only one entry in the /net directory of each machine, the local
> machine name.
> 
> Mark
> 
> 
> 
> 
> _______________________________________________
> 
> General
> http://community.qnx.com/sf/go/post72490
> 
> 

-- 
Hugh Brown                      (613) 591-0931 ext. 2209 (voice)
QNX Software Systems Ltd.        (613) 591-3579           (fax)
175 Terence Matthews Cres.       email:  hsbrown@qnx.com
Kanata, Ontario, Canada.
K2M 1W8
Mark Dowdy(deleted)
10/26/2010 2:42 PM
post72499
Re: Qnet not working with 6.5.0 APIC Image   
As far as I know we're running with regular MTU sizes; I didn't do anything to change them. nicinfo for wm0 on both 
machines lists the maximum transmit and receive data units as 1500.

There does appear to be connectivity between the machines. Each machine can successfully ping the other and I can telnet
 from one to the other.

Mark
Hugh Brown(deleted)
10/26/2010 2:49 PM
post72503
Re: Qnet not working with 6.5.0 APIC Image   
Do you have more than one network interface on each machine? If so, how many
and how are you starting qnet?



On 10-10-26 2:42 PM, "Mark Dowdy" <community-noreply@qnx.com> wrote:

> As far as I know we're running with regular MTU sizes; I didn't do anything to
> change them. nicinfo for wm0 on both machines lists the maximum transmit and
> receive data units as 1500.
> 
> There does appear to be connectivity between the machines. Each machine can
> successfully ping the other and I can telnet from one to the other.
> 
> Mark
> 
> 
> 
> _______________________________________________
> 
> General
> http://community.qnx.com/sf/go/post72499
> 
> 

-- 
Hugh Brown                      (613) 591-0931 ext. 2209 (voice)
QNX Software Systems Ltd.        (613) 591-3579           (fax)
175 Terence Matthews Cres.       email:  hsbrown@qnx.com
Kanata, Ontario, Canada.
K2M 1W8
Mark Dowdy(deleted)
10/26/2010 2:59 PM
post72510
Re: Qnet not working with 6.5.0 APIC Image   
There are four network interfaces on each machine but only one of the four has been configured with an IP address.

To start Qnet, we touched /etc/system/config/useqnet so we're picking up 'mount -Tio-pkt lsm-qnet.so' from /etc/system/
sysinit.

Mark
Hugh Brown(deleted)
10/26/2010 3:13 PM
post72517
Re: Qnet not working with 6.5.0 APIC Image   
OK, please try the following on each machine:

slay io-pkt-v4-hc
io-pkt-v4-hc ­de1000
mount ­Tio-pkt ­obind=wm0 lsm-qnet.so

This will start the Ethernet driver and mount qnet on just the first
interface on each machine. You should now be able to see the other machine
under /net.



On 10-10-26 2:59 PM, "Mark Dowdy" <community-noreply@qnx.com> wrote:

> There are four network interfaces on each machine but only one of the four has
> been configured with an IP address.
> 
> To start Qnet, we touched /etc/system/config/useqnet so we're picking up
> 'mount -Tio-pkt lsm-qnet.so' from /etc/system/sysinit.
> 
> Mark
> 
> 
> 
> 
> _______________________________________________
> 
> General
> http://community.qnx.com/sf/go/post72510
> 
> 

-- 
Hugh Brown                      (613) 591-0931 ext. 2209 (voice)
QNX Software Systems Ltd.        (613) 591-3579           (fax)
175 Terence Matthews Cres.       email:  hsbrown@qnx.com
Kanata, Ontario, Canada.
K2M 1W8
Mark Dowdy(deleted)
10/26/2010 4:15 PM
post72535
Re: Qnet not working with 6.5.0 APIC Image   
That did it, thanks for your help.

Out of curiosity, why is there a problem starting Qnet on all interfaces?

Mark
Hugh Brown(deleted)
10/27/2010 7:51 AM
post72599
Re: Qnet not working with 6.5.0 APIC Image   
AFAIK, qnet defaults to a maximum of 2 interfaces and it was most probably
starting on the incorrect 2 interfaces. Glad its working.


On 10-10-26 4:15 PM, "Mark Dowdy" <community-noreply@qnx.com> wrote:

> That did it, thanks for your help.
> 
> Out of curiosity, why is there a problem starting Qnet on all interfaces?
> 
> Mark
> 
> 
> 
> _______________________________________________
> 
> General
> http://community.qnx.com/sf/go/post72535
> 
> 

-- 
Hugh Brown                      (613) 591-0931 ext. 2209 (voice)
QNX Software Systems Ltd.        (613) 591-3579           (fax)
175 Terence Matthews Cres.       email:  hsbrown@qnx.com
Kanata, Ontario, Canada.
K2M 1W8
Mark Dowdy(deleted)
10/26/2010 2:30 PM
post72493
Re: Qnet not working with 6.5.0 APIC Image   
What does this mean from /proc/qnetstats

00210534  l4_driver_init_en_iopkt(): can't find interfaces (12) (Server fault on msg pass)
00210534  l4_init(): l4_driver_init() failed

Anytime something fails, that can't be good.

Mark

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