Public bug reported:
Under Ubuntu 16.04 (linux-image-4.8.0-58-generic x86_64), I cannot put
the system's storage under heavy load without receiving a bunch of
"swiotlb buffer is full" kernel error messages and sometimes filesystem
erros.
The controller is a intel ICH9R:
00:1f.5 IDE interface: Intel Corporation 82801I (ICH9 Family) 2 port
SATA Controller [IDE mode] (rev 02)
[150060.855960] ata_piix 0000:00:1f.5: swiotlb buffer is full (sz: 65536 bytes)
[150060.855962] DMA: Out of SW-IOMMU space for 65536 bytes at device
0000:00:1f.5
[150060.864067] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[150060.864074] ata3.00: failed command: WRITE DMA EXT
[150060.864079] ata3.00: cmd 35/00:00:00:d8:cf/00:08:0c:00:00/e0 tag 0 dma
1048576 out
[150060.864079] res 50/00:00:ff:d7:cf/00:00:0c:00:00/e0 Emask 0x40
(internal error)
[150060.864082] ata3.00: status: { DRDY }
[150060.869434] ata3.00: configured for UDMA/133
[150060.869453] ata3: EH complete
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.8.0-58-generic 4.8.0-58.63~16.04.1 [modified:
lib/modules/4.8.0-58-generic/kernel/drivers/scsi/megaraid/megaraid_sas.ko]
ProcVersionSignature: Ubuntu 4.8.0-58.63~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-58-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CurrentDesktop: GNOME-Flashback:Unity
Date: Wed Jul 19 10:57:00 2017
InstallationDate: Installed on 2017-03-20 (120 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64
(20170215.2)
SourcePackage: linux-hwe
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-hwe (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
** Attachment added: "kern.log"
https://bugs.launchpad.net/bugs/1705221/+attachment/4917474/+files/kern.log
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https://bugs.launchpad.net/bugs/1705221
Title:
ata_piix swiotlb buffer is full
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