100% RX packages overruns..

100% RX packages overruns..

Post by Egge » Mon, 11 Jan 1999 04:00:00



I got the opportunity to buy an HP NetServer 4/66 LC recently. It comes
along with 32MB of RAM, a SCSI harddrive of 1.2 GB, a 3.5'' floppy drive and
a SCSI CD-ROM.
My intention is to set up a network, where this machine is to function as a
file- and services
server.
While I did not have any problem to install and run LINUX (RedHat
distribution 5.0) on this machine I am not able to configure the ethernet
network. The network card is o.k, because it is a moved one from another PC,
where it worked always perfectly under LINUX (identical RedHat installation)
and also under Windows95.
When trying to use the setup of RedHat with the network options turned on,
the machine crashes after attempting to load the network.
When loading the module 'ewrk3' after starting the machine, there is no
problem to do so. Pinging one of the other PC results in 100% lost packages.
When reviewing ifconfig and netstat -i output, it appears that the 100% of
RX-packages result in overruns.
After using ifdown eth0 en the ifup eth0 there again the system hangs, but
of course can be recalled by using CTRL-C.
For your information I append DMESG, IFCONFIG and ROUTE -n
output together with the contents of HOST and NETWORK.

Who can tell me, what I do wrong?
Thanks in advance for your suggestions.
Willi Egger

DMESG:

Console: 16 point font, 400 scans
Console: colour VGA+ 80x25, 1 virtual console (max 63)
pcibios_init : BIOS32 Service Directory structure at 0x000fff70
pcibios_init : BIOS32 Service Directory entry at 0xfd80f
pcibios_init : PCI BIOS revision 2.00 entry at 0xfd855
Probing PCI hardware.
PCI bridge optimization.
    Cache L2: Not supported.
    CPU-PCI posted write: on.
    CPU-Memory posted write: on.
    PCI-Memory posted write: on.
    PCI burst: on.
Calibrating delay loop.. ok - 33.18 BogoMIPS
Memory: 30560k/32768k available (872k kernel code, 384k reserved, 764k data)
This processor honours the WP bit even when in supervisor mode. Good.
Swansea University Computer Society NET3.035 for Linux 2.0
NET3: Unix domain sockets 0.13 for Linux NET3.035.
Swansea University Computer Society TCP/IP for NET3.034
IP Protocols: IGMP, ICMP, UDP, TCP
Swansea University Computer Society IPX 0.34 for NET3.035
IPX Portions Copyright (c) 1995 Caldera, Inc.
Appletalk 0.17 for Linux NET3.035
Checking 386/387 coupling... Ok, fpu using exception 16 error reporting.
Checking 'hlt' instruction... Ok.

Sun Jan 10 16:03:44 CET 1999
Starting kswapd v 1.4.2.2
Serial driver version 4.13 with no serial options enabled
tty00 at 0x03f8 (irq = 4) is a 16550A
tty01 at 0x02f8 (irq = 3) is a 16550A
PS/2 auxiliary pointing device detected -- driver installed.
Ramdisk driver initialized : 16 ramdisks of 4096K size
loop: registered device at major 7
Floppy drive(s): fd0 is 1.44M
FDC 0 is a National Semiconductor PC87306
aic7xxx: <Adaptec AIC-7770 SCSI host adapter> at EISA 11
aic7xxx: BIOS enabled, IO Port 0xbc00, IRQ 15 (level sensitive), Revision >=
E
aic7xxx: Twin Channel, A SCSI ID 7, B SCSI ID 7, 4/4 SCBs, QFull 4, QMask
0x7
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 4.1/3.2
scsi : 1 host.
scsi0: Scanning channel A for devices.
  Vendor: HP        Model: 1.050 GB #A2      Rev: 0180
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
  Vendor: TEAC      Model: CD-ROM CD-56S     Rev: 1.0D
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 3, lun 0
scsi0: Scanning channel B for devices.
scsi : detected 1 SCSI cdrom 1 SCSI disk total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 2051460 [1001 MB] [1.0 GB]
PPP: version 2.2.0 (dynamic channel allocation)
TCP compression code copyright 1989 Regents of the University of California
PPP Dynamic channel allocation code copyright 1995 Caldera, Inc.
PPP line discipline registered.
eth0: DE203-AB at 0x300, h/w address 08:00:2b:95:54:da,
      has a 2k RAM window at 0xc8000 and uses IRQ5.
Partition check:
 sda: sda1 sda2 sda3
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem).
VFS: Mounted root (ext2 filesystem) readonly.
Trying to unmount old root ... okay
Adding Swap: 51196k swap-space (priority -1)
VFS: Disk change detected on device 02:00

IFCONFIG:
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Bcast:127.255.255.255  Mask:255.0.0.0
          UP BROADCAST LOOPBACK RUNNING  MTU:3584  Metric:1
          RX packets:91 errors:0 dropped:0 overruns:0
          TX packets:91 errors:0 dropped:0 overruns:0
eth0      Link encap:Ethernet  HWaddr 08:00:2B:95:54:DA
          inet addr:192.168.0.3  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:140 dropped:0 overruns:140
          TX packets:118 errors:0 dropped:0 overruns:0
          Interrupt:5 Base address:0x300

ROUTE -n:
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0       10 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        2 lo
0.0.0.0         192.168.0.254   0.0.0.0         UG    0      0        0 eth0

/ETC/HOSTS
127.0.0.1  localhost localhost.localdomain
192.168.0.3  fileserver.sambeek.nl fileserver

/ETC/SYSCONFIG/NETWORK
NETWORKING=yes
FORWARD_IPV4=false
HOSTNAME=fileserver.sambeek.nl
DOMAINNAME=sambeek.nl
GATEWAY=192.168.0.254
GATEWAYDEV=eth0

 
 
 

100% RX packages overruns..

Post by Luca Colomb » Thu, 14 Jan 1999 04:00:00


It looks like the card is configured properly. Try also # dmesg | grep eth0 to
see if the card is still thre and recognised. With the command # cat
/proc/ioports and  # cat /proc/interrupts check for conflicts.

I would suggest to try to change the network cable. I had once a  problem where
I could ping others machine but I could not receive email or view www pages, it
turned out it was the cable malfunctioning.


> I got the opportunity to buy an HP NetServer 4/66 LC recently. It comes
> along with 32MB of RAM, a SCSI harddrive of 1.2 GB, a 3.5'' floppy drive and
> a SCSI CD-ROM.
> My intention is to set up a network, where this machine is to function as a
> file- and services
> server.
> While I did not have any problem to install and run LINUX (RedHat
> distribution 5.0) on this machine I am not able to configure the ethernet
> network. The network card is o.k, because it is a moved one from another PC,
> where it worked always perfectly under LINUX (identical RedHat installation)
> and also under Windows95.
> When trying to use the setup of RedHat with the network options turned on,
> the machine crashes after attempting to load the network.
> When loading the module 'ewrk3' after starting the machine, there is no
> problem to do so. Pinging one of the other PC results in 100% lost packages.
> When reviewing ifconfig and netstat -i output, it appears that the 100% of
> RX-packages result in overruns.
> After using ifdown eth0 en the ifup eth0 there again the system hangs, but
> of course can be recalled by using CTRL-C.
> For your information I append DMESG, IFCONFIG and ROUTE -n
> output together with the contents of HOST and NETWORK.

> Who can tell me, what I do wrong?
> Thanks in advance for your suggestions.
> Willi Egger

> DMESG:

> Console: 16 point font, 400 scans
> Console: colour VGA+ 80x25, 1 virtual console (max 63)
> pcibios_init : BIOS32 Service Directory structure at 0x000fff70
> pcibios_init : BIOS32 Service Directory entry at 0xfd80f
> pcibios_init : PCI BIOS revision 2.00 entry at 0xfd855
> Probing PCI hardware.
> PCI bridge optimization.
>     Cache L2: Not supported.
>     CPU-PCI posted write: on.
>     CPU-Memory posted write: on.
>     PCI-Memory posted write: on.
>     PCI burst: on.
> Calibrating delay loop.. ok - 33.18 BogoMIPS
> Memory: 30560k/32768k available (872k kernel code, 384k reserved, 764k data)
> This processor honours the WP bit even when in supervisor mode. Good.
> Swansea University Computer Society NET3.035 for Linux 2.0
> NET3: Unix domain sockets 0.13 for Linux NET3.035.
> Swansea University Computer Society TCP/IP for NET3.034
> IP Protocols: IGMP, ICMP, UDP, TCP
> Swansea University Computer Society IPX 0.34 for NET3.035
> IPX Portions Copyright (c) 1995 Caldera, Inc.
> Appletalk 0.17 for Linux NET3.035
> Checking 386/387 coupling... Ok, fpu using exception 16 error reporting.
> Checking 'hlt' instruction... Ok.

> Sun Jan 10 16:03:44 CET 1999
> Starting kswapd v 1.4.2.2
> Serial driver version 4.13 with no serial options enabled
> tty00 at 0x03f8 (irq = 4) is a 16550A
> tty01 at 0x02f8 (irq = 3) is a 16550A
> PS/2 auxiliary pointing device detected -- driver installed.
> Ramdisk driver initialized : 16 ramdisks of 4096K size
> loop: registered device at major 7
> Floppy drive(s): fd0 is 1.44M
> FDC 0 is a National Semiconductor PC87306
> aic7xxx: <Adaptec AIC-7770 SCSI host adapter> at EISA 11
> aic7xxx: BIOS enabled, IO Port 0xbc00, IRQ 15 (level sensitive), Revision >=
> E
> aic7xxx: Twin Channel, A SCSI ID 7, B SCSI ID 7, 4/4 SCBs, QFull 4, QMask
> 0x7
> scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 4.1/3.2
> scsi : 1 host.
> scsi0: Scanning channel A for devices.
>   Vendor: HP        Model: 1.050 GB #A2      Rev: 0180
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
>   Vendor: TEAC      Model: CD-ROM CD-56S     Rev: 1.0D
>   Type:   CD-ROM                             ANSI SCSI revision: 02
> Detected scsi CD-ROM sr0 at scsi0, channel 0, id 3, lun 0
> scsi0: Scanning channel B for devices.
> scsi : detected 1 SCSI cdrom 1 SCSI disk total.
> SCSI device sda: hdwr sector= 512 bytes. Sectors= 2051460 [1001 MB] [1.0 GB]
> PPP: version 2.2.0 (dynamic channel allocation)
> TCP compression code copyright 1989 Regents of the University of California
> PPP Dynamic channel allocation code copyright 1995 Caldera, Inc.
> PPP line discipline registered.
> eth0: DE203-AB at 0x300, h/w address 08:00:2b:95:54:da,
>       has a 2k RAM window at 0xc8000 and uses IRQ5.
> Partition check:
>  sda: sda1 sda2 sda3
> RAMDISK: Compressed image found at block 0
> VFS: Mounted root (ext2 filesystem).
> VFS: Mounted root (ext2 filesystem) readonly.
> Trying to unmount old root ... okay
> Adding Swap: 51196k swap-space (priority -1)
> VFS: Disk change detected on device 02:00

> IFCONFIG:
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Bcast:127.255.255.255  Mask:255.0.0.0
>           UP BROADCAST LOOPBACK RUNNING  MTU:3584  Metric:1
>           RX packets:91 errors:0 dropped:0 overruns:0
>           TX packets:91 errors:0 dropped:0 overruns:0
> eth0      Link encap:Ethernet  HWaddr 08:00:2B:95:54:DA
>           inet addr:192.168.0.3  Bcast:192.168.0.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:0 errors:140 dropped:0 overruns:140
>           TX packets:118 errors:0 dropped:0 overruns:0
>           Interrupt:5 Base address:0x300

> ROUTE -n:
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface
> 192.168.0.0     0.0.0.0         255.255.255.0   U     0      0       10 eth0
> 127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        2 lo
> 0.0.0.0         192.168.0.254   0.0.0.0         UG    0      0        0 eth0

> /ETC/HOSTS
> 127.0.0.1  localhost localhost.localdomain
> 192.168.0.3  fileserver.sambeek.nl fileserver

> /ETC/SYSCONFIG/NETWORK
> NETWORKING=yes
> FORWARD_IPV4=false
> HOSTNAME=fileserver.sambeek.nl
> DOMAINNAME=sambeek.nl
> GATEWAY=192.168.0.254
> GATEWAYDEV=eth0

--
Luca Colombi
System Administrator
The Hub Communications Co. Ltd.
The Farmhouse
Syon Park
Middlesex
TW8 8JF

Tel: +44(0)181 560 9222         Fax: +44(0)181 560 9333


 
 
 

1. sl0 RX overrun 20 TX overrun 57

Hi all!

Any comment about the following?

I have two Linux boxes connected via CSLIP and direct wire.
No matter whether the speed is 9600, 19200 or 38400 bauds.
Kernel version is 1.1.37 (but 1.0.8 acts in a similar way).

Routing is set up correctly, ping works brilliantly in both
directions. Telnet works so slowly that it times out before
I can log in. Ftp also works very slowly. ps shows that
in.telnetd on the server side is running. Ifconfig shows
that some overrun of packets occurs on sl0 (ethernet works OK):

----------------------------------------------------------
pygalik:/etc/rc.d# ifconfig
lo        Link encap Local Loopback
inet addr 127.0.0.1  Bcast 127.255.255.255  Mask 255.0.0.0
UP BROADCAST LOOPBACK RUNNING  MTU 2000  Metric 1
RX packets 0 errors 0 dropped 0 overrun 0
TX packets 52 errors 0 dropped 0 overrun 0

sl0       Link encap Serial Line IP
inet addr 200.40.40.95  P-t-P 200.40.40.96  Mask 255.255.255.0
UP POINTOPOINT RUNNING  MTU 296  Metric 1
RX packets 3058 errors 0 dropped 0 overrun 20
TX packets 3293 errors 0 dropped 0 overrun 57

eth0      Link encap 10Mbps Ethernet  HWaddr 00:00:E8:C3:D4:97
inet addr 193.40.127.4  Bcast 193.40.127.255  Mask 255.255.255.0
UP BROADCAST RUNNING  MTU 1500  Metric 1
RX packets 4345 errors 0 dropped 0 overrun 0
TX packets 4987 errors 0 dropped 0 overrun 0

pygalik:/etc/rc.d# netstat -i
Kernel Interface table
Iface   MTU Met  RX-OK RX-ERR RX-DRP RX-OVR  TX-OK TX-ERR TX-DRP TX-OVR Flags
lo     2000   0      0      0      0      0     52      0      0      0 BLRU
sl0     296   0   3066      0      0     21   3308      0      0     63 PRU
eth0   1500   0   5045      0      0      0   5919      0      0      0 BRU
pygalik:/etc/rc.d#
---------------------------------------------------------------------------
Can anyone explain, what does this overrun mean
and what influence has it on performance?

                                        Anto,

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