Network stops working after inserting nf_conntrack.ko to kernel
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Tim Gardner | ||
Wily |
Fix Released
|
Undecided
|
Tim Gardner |
Bug Description
While evaluating Wily for further use I found that after random period of time Internet connection drops (while IP stack is configured properly) and system message log gets quickly filled with following messages:
Oct 07 14:06:25 hikari kernel: nf_conntrack: table full, dropping packet
Oct 07 14:06:26 hikari kernel: nf_conntrack: table full, dropping packet
Problem occurs only if I manually load nf_conntrack or related kernel modules or start Shorewall (which loads nf_conntrack obviously). Removing nf_conntrack and nf_conntrack and dependent modules fixes problem and restores Internet connection.
With older builds of linux kernel (4.1.0-*) everything works as expected.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-
ProcVersionSign
Uname: Linux 4.2.0-14-generic x86_64
ApportVersion: 2.19.1-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CurrentDesktop: Unity
Date: Wed Oct 7 23:56:46 2015
MachineType: LENOVO 2325DV5
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.148
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 03/05/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G2ETA0WW (2.60 )
dmi.board.
dmi.board.name: 2325DV5
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 2325DV5
dmi.product.
dmi.sys.vendor: LENOVO
After some Internet research it seems this issue is already fixed in mainline kernel: /git.kernel. org/cgit/ linux/kernel/ git/torvalds/ linux.git/ commit/ ?id=9cf94eab8b3 09e8bcc78b41dd1 561c75b537dd0b
https:/
I will try to cherry-pick to latest ubuntu kernel and report back the results.