IRQ conflict disables wired network on cold (first) boot
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Low
|
Unassigned |
Bug Description
On every cold boot the ethernet controller fails to load, leaving the wired network completely disabled.
No interface /dev/eth0 is created.
IRQ 49 is taken by snd_hda_intel.
49: 29219 0 0 0 PCI-MSI-edge snd_hda_intel
eth0 is not listed in /proc/interrupts
The following log message is printed:
e1000e: probe of 0000:00:19.0 failed with error -3
When rebooting the machine (without powering down), the ethernet controller loads normally and functions without problems.
IRQ:s are now allocated differently:
49: 155107 0 0 0 PCI-MSI-edge eth0
50: 1414 965740 0 0 PCI-MSI-edge snd_hda_intel
The expected behaviour is that the ethernet controller will be assigned an IRQ on the first boot, and load normally.
The network controller worked fine in Precise, until some upgrade in June.
I did not diagnose the problem immeditaly, and don't know which upgrade caused the regression.
Upgrading to Trusty (Ubuntu 14.04.1 LTS) did not solve the problem.
The problem is not random: it occurs at every cold boot and
the workaround of rebooting immediately after each cold boot works persistently.
I tried, as a workaround, setting the following kernel parameters (one at a time):
pci=noacpi , pci=routeirq , noapic, acpi=off, pcie_pme=force and irqpoll
None of the listed kernel parameters affected the problem.
rmmod e1000e followed modprobe e1000e didn't help.
The ethernet controller is a
00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 05)
Kernel driver in use: e1000e
The sound chip is a
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
Kernel driver in use: snd_hda_intel
Both of the devices are on-board chips on the motherboard, so changing slots is not possible as a workaround.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.13.0-32-generic x86_64
NonfreeKernelMo
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Date: Mon Aug 4 19:46:31 2014
HibernationDevice: RESUME=
InstallationDate: Installed on 2012-05-29 (797 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.127.5
RfKill:
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-07-30 (4 days ago)
dmi.bios.date: 12/22/2011
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BLH6710H.
dmi.board.
dmi.board.name: DH67CL
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG10212-210
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCor
Attached additional information