Re: Problem with Tulip and 3Com

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Thus spake Donald Becker ([email protected]):

> > I'm running a number of servers with DLINK Quad port network cards whic=
h use
> > the tulip driver as well as a 3c905C.  Since kernel 2.4.21 I've had a p=
roblem
> > with what appears to be eth2.
>=20
> What driver version are you using?

The stock driver in the 2.4.25 kernel.

> > root@bridge:~# grep eth /var/log/dmesg
> > eth0: Digital DS21143 Tulip rev 65 at 0x2000, 00:80:C8:CD:38:95, IRQ 17.
> > eth1: Digital DS21143 Tulip rev 65 at 0x2080, 00:80:C8:CD:38:96, IRQ 18.
> > eth2: Digital DS21143 Tulip rev 65 at 0x2400, 00:80:C8:CD:38:97, IRQ 19.
> > eth3: Digital DS21143 Tulip rev 65 at 0x2480, 00:80:C8:CD:38:98, IRQ 16.
>=20
> What does
>   cat /proc/interrupts
> report after the interfaces have been running for a while?

root@server1:~# uptime
 12:44:31 up 1 min,  1 user,  load average: 0.94, 0.33, 0.11
root@server1:~# cat /proc/interrupts=20
           CPU0       CPU1      =20
  0:       4132       3668    IO-APIC-edge  timer
  1:          0          2    IO-APIC-edge  keyboard
  2:          0          0          XT-PIC  cascade
  4:        112         98    IO-APIC-edge  serial
  5:        135        147   IO-APIC-level  eth2
  8:          0          1    IO-APIC-edge  rtc
 10:       1539       1587   IO-APIC-level  eth1
 11:        473        406   IO-APIC-level  eth0
 14:       2300       2446    IO-APIC-edge  ide0
NMI:          0          0=20
LOC:       7444       7455=20
ERR:          0
MIS:          0

Not sure how long it'll stay up.  It ranges from 5 mins to 24 hours.

 12:48:29 up 5 min,  1 user,  load average: 0.16, 0.24, 0.11
root@server1:~# cat /proc/interrupts=20
           CPU0       CPU1      =20
  0:      13692      17833    IO-APIC-edge  timer
  1:          0          2    IO-APIC-edge  keyboard
  2:          0          0          XT-PIC  cascade
  4:        114        120    IO-APIC-edge  serial
  5:        522        503   IO-APIC-level  eth2
  8:          0          1    IO-APIC-edge  rtc
 10:       1935       2127   IO-APIC-level  eth1
 11:        963        948   IO-APIC-level  eth0
 14:       2557       2908    IO-APIC-edge  ide0
NMI:          0          0=20
LOC:      31166      31179=20
ERR:          0
MIS:          0




>=20
> > We found the tulip diag program which gives some errors on Index 3:
> >   The Rx process state is 'Suspended -- no Rx buffers'.
> >  Interrupt sources are pending!  CSR5 is f06981c7.
>=20
> Yup, sounds like an interrupt problem.
>=20
> My guess is that all interrupts are arriving on for first interface.  My
> driver explicitly works around this problem on the x86 by overriding the
> IRQ setting.

Can the interrupt for eth4 be sent somewhere else easily?  We don't
really use eth, just 0,1,2.
Sounds like your driver isn't in the stock tree.  Where can I find it?


:wq!
---------------------------------------------------------------------------
Robert L. Harris                     | GPG Key ID: E344DA3B
                                         @ x-hkp://pgp.mit.edu
DISCLAIMER:
      These are MY OPINIONS ALONE.  I speak for no-one else.

Life is not a destination, it's a journey.
  Microsoft produces 15 car pileups on the highway.
    Don't stop traffic to stand and gawk at the tragedy.

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