P4C800E-Dlx: ICH5/S-ATA and Intel Pro onboard network incompatibility?

[Philippe Lochon]

Hi,

I'm running Mandrake 9.2RC1 (kernel 2.4.22) and I can't make work S-ATA 
boot drive and Intel Pro onboard network.

The Asus P4C800E-Dlx in the only mainboard in the P4x800 family with 
ICH5R and Intel 82547EI (Gb onboard chip, it uses e1000 driver).

The chips share the same IRQ :
# grep eth0 /proc/interrupts
 17:         83   IO-APIC-level  Intel ICH5, eth0
(note that there's no error about this in syslog)

1) Boot on S-ATA drive / Mandrake 9.2RC1 with "acpi=off"
-> boot OK, but no ping, "NETDEV WATCHDOG: eth0: transmit timed out" in 
syslog.
(full log and config on http://plochon.free.fr/mdk92RC1.html )

2) Boot on S-ATA drive / Mandrake 9.2RC1 with "acpi=off" and "noapic"
-> boot hang (when displays "hde: attached ide_disk driver" where hde is 
the S-ATA boot drive)

3) Same tests but boot on CD with Knoppix 3.3 (Kernel 2.4.22)
-> same results

4) S-ATA drive physically removed, boot on CD / Knoppix 3.3 with 
"acpi=off" and "noapic"
-> boot OK, network OK : it works !

Is there a way to make S-ATA and Intel Pro work together, or is it an 
incompatibility ?

Thanks,
Philippe

My hardware configuration:
P4C800E-Dlx, P4C@xxxxxx, 256Mb, 1 Seagate S-ATA drive plugged on 
standard S-ATA connector (-> not on S-ATA RAID connector)
IDE Bios settings :
Onboard IDE operate mode	: Enhanced mode
Enhanced mode support on	: S-ATA
Configure S-ATA as RAID		: No


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