** No longer affects: linux (Ubuntu Xenial)
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable LSO/CSO for Trunk VEA
Status in
** Changed in: ubuntu-power-systems
Status: Fix Committed => Fix Released
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Title:
Ubuntu 16.04.02: ibmveth: Support to
** Changed in: ubuntu-power-systems
Status: In Progress => Fix Committed
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable
** Tags removed: triage-a
** Tags added: triage-g
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable LSO/CSO for Trunk VEA
Status
Hi Frank,
Yes, that is how I see it - these changes can go through, but we need
good docs to point people to as there is an incredibly high likelihood
of misconfiguration at various points.
Regards,
Daniel
On Tue, Dec 19, 2017 at 3:46 AM, Frank Heimes
<1692...@bugs.launchpad.net> wrote:
> Siva
Siva and Daniel, may I just ask where we are on this?
Well it looks to me that Siva/IBM sees this more as a miss-configuration, so
that the changes in comment #18 are _not_ needed. Daniel, do you see it now the
same way?
But in this case this needs to be documented somewhere, so that we can
** Tags removed: triage-g
** Tags added: triage-a
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable LSO/CSO for Trunk VEA
Status
Hi Siva,
Thank you for your quick and thoughtful response.
I will ask about the default MTU for the veth interface to see if the
user increased it themselves.
I'm not sure I completely understand what you mean about largesend
offload being disabled after retransmits. I'm also not completely
Hi Bryant,
So, to be crystal clear, IBM's position is if customers are using this
setup, that they should set the MTU in their AIX partitions to 1500? (or
9000 if using jumbo frames)
Is this documented anywhere on your website that we can point users to?
I ask because I have asked one of your
Just as an update: I am working with Jay V on a set of patches to drop
the oversized packets at the openvswitch/bridge level to prevent the
crash I mentioned.
But that is not sufficient to solve the underlying problem: there will
still be packet loss when there's an MTU mismatch here. A device in
Our support team has encountered a case where ibmveth + openvswitch + bnx2x has
lead to some issues, which IBM should probably be aware of before
turning on large segments in more places.
Here's a summary from support for that issue:
==
[Issue: we see a firmware assertion from an IBM
Needs testing for Xenial.
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable LSO/CSO for Trunk VEA
Status in The
** Changed in: ubuntu-power-systems
Status: Fix Committed => In Progress
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable
** Changed in: ubuntu-power-systems
Status: Confirmed => In Progress
** Changed in: ubuntu-power-systems
Status: In Progress => Fix Committed
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** Tags removed: targetmilestone-inin16042
** Tags added: targetmilestone-inin16043
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Title:
Ubuntu 16.04.02: ibmveth: Support to
This bug was fixed in the package linux - 4.10.0-33.37
---
linux (4.10.0-33.37) zesty; urgency=low
* linux: 4.10.0-33.37 -proposed tracker (LP: #1709303)
* CVE-2017-1000112
- Revert "udp: consistently apply ufo or fragmentation"
- udp: consistently apply ufo or
** Description changed:
+
+ == SRU Justification ==
+ Commit 66aa0678ef is request to fix four issues with the ibmveth driver.
+ The issues are as follows:
+ - Issue 1: ibmveth doesn't support largesend and checksum offload features
when configured as "Trunk".
+ - Issue 2: SYN packet drops seen
--- Comment From b...@us.ibm.com 2017-08-24 16:07 EDT---
Works for us.
** Tags added: verification-done-xenial
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Title:
There is now a Xenial test kernel, which has a backport of commit
66aa0678efc2. The test kernels can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1692538/xenial
Can you test these kernels and see if they resolve this bug?
Thanks in advance!
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--- Comment From b...@us.ibm.com 2017-08-16 16:14 EDT---
I added the tag: verification-done-zesty
** Tags removed: verification-needed-zesty
** Tags added: verification-done-zesty
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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-
zesty' to 'verification-done-zesty'. If the problem still exists, change
the tag
This bug was fixed in the package linux - 4.12.0-11.12
---
linux (4.12.0-11.12) artful; urgency=low
* linux: 4.12.0-11.12 -proposed tracker (LP: #1709929)
* CVE-2017-1000111
- packet: fix tp_reserve race in packet_set_ring
* CVE-2017-1000112
- udp: consistently apply
** Changed in: linux (Ubuntu Zesty)
Status: In Progress => Fix Committed
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable
** Changed in: linux (Ubuntu Artful)
Status: In Progress => Fix Committed
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Title:
Ubuntu 16.04.02: ibmveth: Support to
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Artful)
Importance: Critical
Assignee: Canonical Kernel Team (canonical-kernel-team)
Status: Confirmed
** Also affects: linux (Ubuntu Zesty)
Importance: Undecided
I had a build failure with Xenial. There are some prereq commits
required that I am working on identifying now.
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Title:
Ubuntu
** Tags added: triage-g
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable LSO/CSO for Trunk VEA
Status in The
** Changed in: ubuntu-power-systems
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
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Ubuntu
I built Xenial, Zesty and Artful test kernels with commit 66aa0678efc2.
The test kernels can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1692538/
Can you test these kernels and see if they resolve this bug?
Thanks in advance!
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** Changed in: linux (Ubuntu)
Importance: Undecided => Critical
** Changed in: ubuntu-power-systems
Importance: Undecided => Critical
** Changed in: linux (Ubuntu)
Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) =>
Canonical Kernel Team (canonical-kernel-team)
** Changed in: ubuntu-power-systems
Status: New => Confirmed
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable LSO/CSO for
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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** Tags added: ubuntu-16.04
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable LSO/CSO for Trunk VEA
Status in The
** Tags added: kernel-da-key
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Title:
Ubuntu 16.04.02: ibmveth: Support to enable LSO/CSO for Trunk VEA
Status in The
** Also affects: ubuntu-power-systems
Importance: Undecided
Status: New
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Title:
Ubuntu 16.04.02: ibmveth: Support to
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