Public bug reported:
First: sudo lspci -vv <snip it>
02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8036 PCI-E Fast
Ethernet Controller (rev 10)
Subsystem: Gateway 2000 Unknown device 0506
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 58
Region 0: Memory at c0100000 (64-bit, non-prefetchable) [size=16K]
Region 2: I/O ports at a000 [size=256]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [50] Vital Product Data
Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/1
Enable+
Address: 00000000fee00000 Data: 403a
Capabilities: [e0] Express Legacy Endpoint IRQ 0
Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s unlimited, L1 unlimited
Device: AtnBtn- AtnInd- PwrInd-
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 512 bytes
Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s, Port 3
Link: Latency L0s <256ns, L1 unlimited
Link: ASPM Disabled RCB 128 bytes CommClk- ExtSynch-
-----------
THAT is the built-in ethernet 10/100 for my Gateway laptop.
(running edgy 6.10 live cd 10-11-2006 ) with updates.
----
Next LOOK at the MTU's of eth1 (which is the 10/100 to the my cable modem )
[EMAIL PROTECTED]:~$ sudo ip link list
1: lo: <LOOPBACK,UP,10000> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth1: <BROADCAST,MULTICAST,UP,10000> mtu 576 qdisc pfifo_fast qlen 1000
link/ether 00:03:25:28:93:b3 brd ff:ff:ff:ff:ff:ff
3: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000
link/ether 00:14:a5:41:e4:99 brd ff:ff:ff:ff:ff:ff
4: sit0: <NOARP> mtu 1480 qdisc noop
link/sit 0.0.0.0 brd 0.0.0.0
[EMAIL PROTECTED]:~$
----------
See how its set to "576" AND NOT "1500", this would explain allot of very slow
downloads.. and stalling.
----------
Now if I do this:
[EMAIL PROTECTED]:~$ sudo ifconfig eth1 mtu 1500
[EMAIL PROTECTED]:~$ ip link list
1: lo: <LOOPBACK,UP,10000> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth1: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:03:25:28:93:b3 brd ff:ff:ff:ff:ff:ff
3: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000
link/ether 00:14:a5:41:e4:99 brd ff:ff:ff:ff:ff:ff
4: sit0: <NOARP> mtu 1480 qdisc noop
link/sit 0.0.0.0 brd 0.0.0.0
[EMAIL PROTECTED]:~$
----------------
You can see its NOW that I've set the MTU's to 1500
and my download speeds have increase allot very much so.
--------------
BUT WHEN, I reboot, my laptop and do this:
[EMAIL PROTECTED]:~$ sudo ip link list
1: lo: <LOOPBACK,UP,10000> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth1: <BROADCAST,MULTICAST,UP,10000> mtu 576 qdisc pfifo_fast qlen 1000
link/ether 00:03:25:28:93:b3 brd ff:ff:ff:ff:ff:ff
3: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000
link/ether 00:14:a5:41:e4:99 brd ff:ff:ff:ff:ff:ff
4: sit0: <NOARP> mtu 1480 qdisc noop
link/sit 0.0.0.0 brd 0.0.0.0
[EMAIL PROTECTED]:~$
-------------------
As you can see the MTU's are Back to "576" and not setting at "1500"
SO, THERE IS a bug with DHCP or your ethernet driver somewhere....???
Hope this is enough information to FIX it,
if not please email me. [EMAIL PROTECTED]
Thank You.
** Affects: Ubuntu
Importance: Undecided
Status: Unconfirmed
--
Major Problem with DHCP setting MTU Correctly.
https://launchpad.net/bugs/65787
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