Michael Brown <[email protected]> on Fri, 2014/04/25 16:36: > On 25/04/14 08:31, Christian Hesse wrote: > > This is how to reproduce: > > > > * Boot ipxe.lkrn from Grub (so no UNDI involved) > > * iPXE gets IP address via DHCP and fetches its config > > * Select to boot Linux (kernel version 3.14.1) > > * Try to get IP address via DHCP from inside Linux system > > > > DHCP just times out (though mii-tool reports link is ok) and I have to > > power off the system to make the network controller work again. No issues > > booting the same system from Grub directly or via iPXE from BIOS/UNDI. > > Does unplugging and replugging the cable have any affect?
No.
> Do all the various indicators of link speed (switch LEDs, ethtool,
> mii-tool etc) agree on the negotiated link speed?
Tried with an USB adapter (Cisco switch first time) connected to my notebook
to test some different hardware. Exactly the same:
server# mii-tool usb
usb: negotiated 100baseTx-FD, link ok
client# mii-tool enp0s25
enp0s25: negotiated 100baseTx-FD, link ok
> Is the datapath broken in both directions?
No. The Dell notebook (the one acting as client and having the problem)
receives packets. I can not see a single ethernet frame on the network sent
from the notebook.
> Are you able to transmit ARP
> requests or broadcast pings, or observe received data via tcpdump?
tcpdump receives all types of packets on the notebook.
Did a warm reboot and tried to boot via UNDI. BIOS reported:
> PXE-E05: The LAN adapter's configuration is corupted or has not been
> initialized. The Boot agent cannot continue.
Though this is not reproducible. After a cold reboot everything ist just fine
again.
--
main(a){char*c=/* Schoene Gruesse */"B?IJj;MEH"
"CX:;",b;for(a/* Chris get my mail address: */=0;b=c[a++];)
putchar(b-1/(/* gcc -o sig sig.c && ./sig */b/42*2-3)*42);}
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