The bug is still present in 2.6.32-50
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https://bugs.launchpad.net/bugs/814894
Title:
Kernel hangs on high network throughput
Status in “linux” package in Ubuntu:
Expired
Bug description:
If A Fit-PC2i receives more than 200Mbit/s of network traffic the
kernel will hang. Cursor stops blinking, machine doesn't respond to
keyboard and mouse input, no longer responds to ARP requests or any
other network traffic.
The problem is triggered every time a 10.04.3 system with kernel
version 2.6.32-33-generic receives more than 200Mbit/s of network
traffic. The bug affects both live system as well as fully installed
system.
The bug can be reproduced by downloading a 1GB file from a server on
the LAN. The bug is only triggered if more than 200Mbit/s is
transfered. If any link on the path between client and server is
100Mbit/s or less the bug cannot be reproduced.
The 8.04.4 live system is not affected by this problem and can receive
600Mbit/s without problems on the same hardware.
Marking this as a security problem because it can in principle be used
to perform a DoS attack.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image (not installed)
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-33.70-generic 2.6.32.41+drm33.18
Uname: Linux 2.6.32-33-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: MID [HDA Intel MID], device 0: ALC662 rev1 Analog [ALC662 rev1
Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kasperd 1453 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'MID'/'HDA Intel MID at 0xb0050000 irq 22'
Mixer name : 'Realtek ALC662 rev1'
Components : 'HDA:10ec0662,10ec0662,00100101'
Controls : 33
Simple ctrls : 19
Date: Sat Jul 23 01:43:06 2011
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=e14584e1-caed-4150-9e25-e364d27bebe3
InstallationMedia: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release i386 (20110720.1)
MachineType: CompuLab CM-iAM/SBC-FITPC2i
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-33-generic
root=UUID=8bf29c49-594d-41b8-8513-ac3cf4bf4e1b ro rootdir=lucid
ProcEnviron:
LANG=en_DK.utf8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.7
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
StagingDrivers: rt2870sta
Title: [STAGING]
dmi.bios.date: 09/14/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: NAPA0001.86C.0000.D.1009141059
dmi.board.name: CM-iAM/SBC-FITPC2i
dmi.board.vendor: Intel Corporation
dmi.board.version: 1.x
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: OEM
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnPhoenixTechnologiesLTD:bvrNAPA0001.86C.0000.D.1009141059:bd09/14/2010:svnCompuLab:pnCM-iAM/SBC-FITPC2i:pvrNotApplicable:rvnIntelCorporation:rnCM-iAM/SBC-FITPC2i:rvr1.x:cvnOEM:ct1:cvrN/A:
dmi.product.name: CM-iAM/SBC-FITPC2i
dmi.product.version: Not Applicable
dmi.sys.vendor: CompuLab
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