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SubjectRe: Network error with Intel E1000 Adapter on update 2.4.25 ==> 2.6.3
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>> When trying to update the kernel from 2.4.25 to 2.6.3 I run 
>> into a probelm:
>> While the driver for the onboard Intel E1000 network adapter
>> loads OK, it
>> doesn't seem to find an interrupt for the interface - ifconfig shows:
>> eth0 Link encap:Ethernet HWaddr 00:0E:A6:2D:7A:64
>> BROADCAST MULTICAST MTU:1500 Metric:1
>> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:1000
>> RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
>> Base address:0x9000 Memory:fc000000-fc020000
>> Board is an Asus PC-DL, Intel 875P Chipset, one Xeon 2.8Ghz
>> CPU, Onboard
>> e1000 Network interface. Any idea how I can get the onboard
>> NIC to work?

>full output of /var/log/dmesg || dmesg after bootup might help.

Some more information:

* Update to 2.6.4-rc1 doesn't help, same situation as before.
* 2.4.25 finds/uses int 18
* Binary search shows that the problem first appears with 2.6.2-bk1; 2.6.2 works OK.

Further search shows that it's the e1000 driver update from 5.2.20 to 5.2.30.1 that breaks things for me. copying the older driver into a newer kernel works.

Hmm, changelog states what looks like a possible candidate:

* o Use pdev->irq rather than netdev->irq in preparation for MSI support.

Final information:

Backing out the pdev->irq <-> netdev->irq changes gives me ifconfig output with the correct interrupt listed; unfortunately,
ifconfig eth0 up
still locks the machine, so that doesn't seem to be the only problem.

Bye, Martin
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