Red Hat Bugzilla – Bug 102409
(ACPI) RealTek 8139 fails to DHCP under linux-2.6 kernel
Last modified: 2013-07-02 22:14:51 EDT
Description of problem:
I upgraded from RH9 to the new 2.6-test kernel under
http://people.redhat.com/arjanv/2.5 using yum. Everything installed fine with
no errors. However upon reboot, retrieving an IP address using DHCP fails.
Reboot again under the RH9 kernel (2.4.20-18.9) and DHCP works fine. My
ethernet card is a RealTek 8139.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. /sbin/ifup eth0
the ip address is received from the DHCP server
I tried to debug this by booting into the 2.6 kernel and activating the network
connection by hand using 'ifup eth0' and the gui interface. The output of
'dmesg' shows the driver loading properly (lsmod confirms this too). The
content of /var/log/messages shows two DHCPREQUEST then about 6 DHCPDISCOVERs
with the latter timing out.
I also downloaded the latest dhclient for RH9 but that had no affect.
Does it start working again if you boot with acpi=off ? or noapic ? or a
combination of both ?
acpi=off --> works
pci=noacpi --> works
acpi=off pci=noacpi --> works
However, I noticed when using pci=noacpi, my boot time is about 20 seconds
slower. Is that normal?
Thanks for the tip! Now what does this mean? Is it a software problem or is
the cheap hardware I bought last month flaky? :)
just means that there are still bugs in ACPI. *complete lack of surprise*.
These are also tracked upstream. See
for an insight .. This bug in particular has been around for quite a while, so
bugging the ACPI folks to get it fixed would be a good thing.
Thanks! Yeah, I will go bug them, I have some free time.
Is this a dup of 101217?
I believe this bug has been fixed a while ago (months maybe). You can
close this issue for now. If I still have problems I will re-open a
new issue. Thanks.