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Bug#903914: xen_netfront broken in 4.9.110-1

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  Bug#903914: xen_netfront broken in 4.9.110-1 Elliott Mitchell <ehem+debian@m5p.com> - 2018-07-16 18:00 +0200
    Processed: Re: Bug#903914: xen_netfront broken in 4.9.110-1 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2018-07-17 23:30 +0200
    Bug#903914: xen_netfront broken in 4.9.110-1 Ben Hutchings <ben@decadent.org.uk> - 2018-07-17 23:30 +0200

#61420 — Bug#903914: xen_netfront broken in 4.9.110-1

Package: linux-source-4.9
Version: 4.9.110-1

Anyone who was using jumbo frames inside a Xen guest was fine with
4.9.88-1+deb9u1, but a problem suddenly showed up with 4.9.110-1.

Discussion of problem:

https://lists.gt.net/xen/devel/519117

Something which acts like a working patch is here:

http://ubuntu.5.x6.nabble.com/Xenial-Regression-SRU-Fix-quot-Cannot-set-MTU-higher-than-1500-in-Xen-instance-quot-td5170202.html


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  \_CS\   |  _____  -O #include <stddisclaimer.h> O-   _____  |   /  _/
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#61444 — Processed: Re: Bug#903914: xen_netfront broken in 4.9.110-1

Processing control commands:

> severity -1 important
Bug #903914 [src:linux] xen_netfront broken in 4.9.110-1
Severity set to 'important' from 'normal'
> tag -1 upstream patch pending
Bug #903914 [src:linux] xen_netfront broken in 4.9.110-1
Added tag(s) upstream, pending, and patch.

-- 
903914: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=903914
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#61445

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Control: severity -1 important
Control: tag -1 upstream patch pending

On Mon, 2018-07-16 at 08:55 -0700, Elliott Mitchell wrote:
> Package: linux-source-4.9
> Version: 4.9.110-1
> 
> Anyone who was using jumbo frames inside a Xen guest was fine with
> 4.9.88-1+deb9u1, but a problem suddenly showed up with 4.9.110-1.
> 
> Discussion of problem:
> 
> https://lists.gt.net/xen/devel/519117
> 
> Something which acts like a working patch is here:
> 
> http://ubuntu.5.x6.nabble.com/Xenial-Regression-SRU-Fix-quot-Cannot-set-MTU-higher-than-1500-in-Xen-instance-quot-td5170202.html

Thanks for the information.  So the upstream commits are:

cb257783c292 xen-netfront: Fix mismatched rtnl_unlock
45c8184c1bed xen-netfront: Update features after registering netdev

and these apply cleanly to our 4.9 branch.

Ben.

-- 
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.

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