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apport-collect 1715861
** Package changed: linux-hwe (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags removed: dma error irq r592
** Tags added: regression-potential
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https://bugs.launchpad.net/bugs/1715861
Title:
r592 & r852 IRQ: DMA errors cause excessive log file entries
Status in linux package in Ubuntu:
Incomplete
Bug description:
Issue on a newly installed Lubuntu 16.04.3 with 'apt upgrade' freshly
applied.
-- /var/log/syslog and /var/log/kern.log grow to 100s of MiB in less
than a day. --
Typical excessive syslog entry is attached (hostname redacted). I am
not making hardware changes at the times these entries are made.
Entires are of the form:
Sep 7 20:05:55 <hostname> kernel: [14098.011547] r592: IRQ: card added
Sep 7 20:05:55 <hostname> kernel: [14098.011548] r592: IRQ: DMA error
followed by 38 lines of trace information
Note that the kernel reports itself as tainted. This is due to a previous
kernel warning issued during the boot-up, which I believe to be unrelated -
kern.log extract (hostname redacted) of warning and taint also attached.
The laptop reports itself as having the problematic Ricoh devices.
Relevant hwinfo attached. grepped extract follows
Model: "Ricoh R5C832 IEEE 1394 Controller"
Vendor: pci 0x1180 "Ricoh Co Ltd"
Model: "Ricoh xD-Picture Card Controller"
Vendor: pci 0x1180 "Ricoh Co Ltd"
Model: "Ricoh R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter"
Vendor: pci 0x1180 "Ricoh Co Ltd"
Model: "Ricoh R5C592 Memory Stick Bus Host Adapter"
Vendor: pci 0x1180 "Ricoh Co Ltd"
Workaround is blacklisting devices by adding the following lines at
the end of /etc/modprobe.d/blacklist.conf
# Stop errors filling up log - see
# https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1530187
# Blacklist Ricoh card reader
blacklist r592
blacklist r852
This stops messages from appearing in /var/log/kern.log and
/var/log/syslog. The Ricoh cardreader built into the laptop still
reads SD cards after such blacklisting.
(lsb_release -rd output is
Description: Ubuntu 16.04.3 LTS
Release: 16.04
graaskaeg
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.10.0-33-generic 4.10.0-33.37~16.04.1
ProcVersionSignature: Ubuntu 4.10.0-33.37~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-33-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Fri Sep 8 13:30:06 2017
InstallationDate: Installed on 2017-09-05 (3 days ago)
InstallationMedia: Lubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64
(20170801)
SourcePackage: linux-hwe
UpgradeStatus: No upgrade log present (probably fresh install)
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