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The tg3 broadcom network driver that binds with chipset 5762 goes offline and
unable to recover (even with tg3 watchdog timeout) when network transmit is
under high load. Call trace:
https://launchpadlibrarian.net/204185480/dmesg
When this happens, only a reboot would be able to fix it. Sometimes,
however, bringing the interface offline and online (via ifconfig) would
recover networking. I've also tested with the latest tg3 driver (dec
2014 version) and networking is still problematic. I have also disabled
TSO, GSO etc... with ethtool and the bug still surfaces. This bug may
be related to the integrated Firmware.
Here is the procedure to replicate the issue because it is hard to
replicate it under moderate network load.
1. Bootup a machine with a broadcom 5762 NIC (ie. HP DeskElite 705) using a
Ubuntu/Kubunu Live CD 14.04-15.04.
2. from another machine: start 5 sessions, repetitively copy (scp with public
key authentication) a 70 meg file back and forth to the tg3 machine in each
session. (not sure if this is necessary)
3. create a 1GB file on the tg3 machine, with something like dd if=/dev/urandom
of=/my/test/file bs=1024 count=$((1024*1000))
4. from another machine: repetitively scp copy that 1GB file from the tg3
machine. This can be done with something like:
while [ 0 ]; do
scp -i /my/scp/private.key u...@ip.of.tg3:/my/test/file /tmp
done;
Networking will mostly goes offline in about 10-30 minutes.
WORKAROUND: Add udev rule to make the changes permanent in
/etc/udev/rules.d/80-tg3-fix.rules :
ACTION=="add", SUBSYSTEM=="net", ATTRS{vendor}=="0x14e4",
ATTRS{device}=="0x1687", RUN+="/sbin/ethtool -K %k highdma off"
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-15-generic 3.19.0-15.15
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: kubuntu 3748 F.... pulseaudio
/dev/snd/controlC0: kubuntu 3748 F.... pulseaudio
CasperVersion: 1.360
Date: Thu Apr 23 11:16:24 2015
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
LiveMediaBuild: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: Hewlett-Packard HP EliteDesk 705 G1 MT
ProcEnviron:
LANGUAGE=
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi
file=/cdrom/preseed/hostname.seed boot=casper maybe-ubiquity quiet splash ---
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.19.0-15-generic N/A
linux-backports-modules-3.19.0-15-generic N/A
linux-firmware 1.143
RfKill:
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/22/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L06 v02.15
dmi.board.asset.tag: 2UA5041TG4
dmi.board.name: 2215
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: 2UA5041TG4
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvrL06v02.15:bd10/22/2014:svnHewlett-Packard:pnHPEliteDesk705G1MT:pvr:rvnHewlett-Packard:rn2215:rvr:cvnHewlett-Packard:ct6:cvr:
dmi.product.name: HP EliteDesk 705 G1 MT
dmi.sys.vendor: Hewlett-Packard
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bios-outdated-2.28 cscc kernel-bug-exists-upstream
kernel-bug-exists-upstream-4.11 lucid trusty vivid xenial
--
14e4:1687 broadcom tg3 network driver disconnects under high load
https://bugs.launchpad.net/bugs/1447664
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