I can confirm this "Corrupted MAC on input" bug on i386 desktop version
of Ubuntu 9.10 karmic. Silent file corruption also happens when
downloading files using HTTP or FTP protocols. This bug is easily
reproducible.
The computer on which this bug manifests itself is an Asus Eee PC 1000HE
with 2 GB of RAM and an Atheros AR8121/AR8113/AR8114 PCI-E Ethernet
Controller (1969:1026). I tried upgrading the 1000HE AMI BIOS from
version 0607 to 1002, but that didn't help.
- $ uname -a
Linux eeepc 2.6.31-15-generic #50-Ubuntu SMP Tue Nov 10 14:54:29 UTC 2009 i686
GNU/Linux
- $ sudo lspci -vvvn
03:00.0 0200: 1969:1026 (rev b0)
Subsystem: 1043:8324
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 27
Region 0: Memory at fbfc0000 (64-bit, non-prefetchable) [size=256K]
Region 2: I/O ports at ec00 [size=128]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [48] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0
Enable+
Address: 00000000fee0300c Data: 417a
Capabilities: [58] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 4096 bytes, PhantFunc 0, Latency L0s <4us,
L1 unlimited
ExtTag- AttnBtn+ AttnInd+ PwrInd+ RBE- FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s, Latency L0
unlimited, L1 unlimited
ClockPM- Suprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
Capabilities: [6c] Vital Product Data <?>
Capabilities: [100] Advanced Error Reporting <?>
Capabilities: [180] Device Serial Number <EDITED OUT>
Kernel driver in use: ATL1E
Kernel modules: atl1e
- $ sudo ethtool -i eth0
driver: ATL1E
version: 1.0.0.7-NAPI
firmware-version: L1e
bus-info: 0000:03:00.0
- $ sudo ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pg
Wake-on: d
Current message level: 0x00000000 (0)
Link detected: yes
- $ sudo ethtool -k eth0
Cannot get device rx csum settings: Operation not supported
Cannot get device flags: Operation not supported
Offload parameters for eth0:
rx-checksumming: off
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: off
large-receive-offload: off
I have tried the workarounds mentioned in this thread and elsewhere, but
none of them works.
- $ sudo ethtool -K eth0 rx off
Cannot set device rx csum settings: Operation not supported
- $ sudo ethtool -K eth0 tx off
Cannot set device tx csum settings: Operation not supported
- $ sudo ethtool -K eth0 tso off
Cannot set device tcp segmentation offload settings: Operation not supported
After running above 3 commands "sudo ethtool -k eth0" still prints
exactly the same values as listed above. How can I disable these offload
settings for good?
To reproduce the bug repeat the following steps 1-3.
1. Suspend the computer (Fn+F1 on Asus Eee PC 1000HE)
2. Wake up from Suspend (Press any key)
3. $ scp u...@remoteserver:~/ubuntu-9.10-server-amd64.iso .
ubuntu-9.10-server-amd64.iso 0% 0 0.0KB/s --:-- ETA
Disconnecting: Corrupted MAC on input.
lost connection
It seems that after this initial "Corrupted MAC on input" error the bug
takes a longer time to emerge again, but it always shows up right after
waking up from suspend and downloading something with scp. The bug is
_not_ openssh or scp related. Silent file corruption happens when
downloading files using HTTP or FTP protocols.
Let me know if you need any more information and I will provide it. This
is a major problem and concerns many people.
--
Large file transfer gives error: Corrupted MAC on input
https://bugs.launchpad.net/bugs/60764
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
