[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

** Changed in: linux (Ubuntu) Status: Fix Committed => Fix Released ** Changed in: linux (Ubuntu Bionic) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

This bug was fixed in the package linux - 4.13.0-36.40 --- linux (4.13.0-36.40) artful; urgency=medium * linux: 4.13.0-36.40 -proposed tracker (LP: #1750010) * Rebuild without "CVE-2017-5754 ARM64 KPTI fixes" patch set linux (4.13.0-35.39) artful; urgency=medium * linux:

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- xenial' to 'verification-done-xenial'. If the problem still exists, change the tag

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

disregard that last comment, it was caused by a buggy script -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743746 Title: 4.13: unable to increase MTU configuration for GRE devices To manage

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

LGTM to artful-proposed: 15: gre_sys@NONE: mtu 65000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000 link/ether 92:92:4d:84:14:1d brd ff:ff:ff:ff:ff:ff $ lsb_release -a No LSB modules are available. Distributor ID:

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- artful' to 'verification-done-artful'. If the problem still exists, change the tag

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

Appreciate the kernel team has been pretty busy the last few months; is there an ETA on when this fix might make it into the 4.13 kernels? I know we've pushed the HWE kernel version forward for xenial - so any OpenStack deployments using HWE with GRE tunnels will hit this problem. -- You

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743746 Title: 4.13: unable to increase MTU configuration for GRE devices To manage notifications about this bug go to:

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

** Changed in: linux (Ubuntu Bionic) Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743746 Title: 4.13: unable to increase MTU configuration for GRE

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

Submitted Artful and Bionic SRU requests: https://lists.ubuntu.com/archives/kernel-team/2018-January/089420.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743746 Title: 4.13: unable to

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

** Also affects: linux (Ubuntu Bionic) Importance: Medium Assignee: Joseph Salisbury (jsalisbury) Status: In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743746 Title:

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

Thanks for testing, James. I'll submit an SRU request for this commit to be included in the Ubuntu kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743746 Title: 4.13: unable to increase MTU

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

Hi Joseph I reconfirmed the bug on the current artful kernel, upgraded to your test kernel and I can confirm that the test kernel resolves the issue: 7: gre_sys@NONE: mtu 65000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

I built a test kernel with commit cfddd4c. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1743746 Can you test this kernel and see if it resolves this bug? Note, to test this kernel, you need to install both the linux-image and linux-image-extra .deb packages.

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

** Also affects: linux (Ubuntu Artful) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: Triaged => In Progress ** Changed in: linux (Ubuntu Artful) Status: New => In Progress ** Changed in: linux (Ubuntu Artful) Importance: Undecided => Medium

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Triaged ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743746 Title: 4.13: unable to increase MTU configuration for GRE devices To

[Bug 1743746] Re: 4.13: unable to increase MTU configuration for GRE devices

** Description changed: + [Impact] + GRE overlay networks can't carry traffic with MTU > 1500 + + [Test Case] + + [Regression Potential] + + + [Bug Report] + Under Linux 4.13 its not possible to configure GRE tunnel devices with a MTU larger than 1500; this impacts on Open vSwitch (which