Comment 0 for bug 1139272

Ethernet adapter or USB disk stop working after some time after boot. When that happen dmesg show message "DMA: Out of SW-IOMMU space for 65536 bytes at device" repeated many times. I don't remember this problem before Linux 3.8 so this most likely regression.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-8-generic 3.8.0-8.17
ProcVersionSignature: Ubuntu 3.8.0-8.17-generic 3.8.0
Uname: Linux 3.8.0-8-generic x86_64
ApportVersion: 2.9-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: nikita 2631 F.... pulseaudio
 /dev/snd/controlC2: nikita 2631 F.... pulseaudio
 /dev/snd/controlC0: nikita 2631 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Date: Sat Mar 2 14:16:18 2013
InstallationDate: Installed on 2011-04-03 (698 days ago)
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.

 virbr0 no wireless extensions.
MachineType: Acer PXXX5
MarkForUpload: True
ProcFB:
 0 radeondrmfb
 1 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-8-generic root=UUID=3b1505c6-71b8-4ac1-9fde-849b397ca44b ro rootflags=subvol=@ quiet splash acpi_osi=Linux vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-8-generic N/A
 linux-backports-modules-3.8.0-8-generic N/A
 linux-firmware 1.103
RfKill:
 0: acer-wireless: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-01-05 (55 days ago)
WifiSyslog:

dmi.bios.date: 11/06/2012
dmi.bios.vendor: Acer
dmi.bios.version: V1.07
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Torpedo
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: V1.07
dmi.modalias: dmi:bvnAcer:bvrV1.07:bd11/06/2012:svnAcer:pnPXXX5:pvrV1.07:rvnAcer:rnTorpedo:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrV1.07:
dmi.product.name: PXXX5
dmi.product.version: V1.07
dmi.sys.vendor: Acer