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Bug#864642: vmxnet3: Reports suspect GRO implementation on vSphere hosts / one VM crashes

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found #864642 4.9.30-2+deb9u1
thanks


Am 12.06.2017 um 10:02 schrieb Patrick Matthäi:
> Package: src:linux
> Version: 4.9.30-1
> Severity: important
> File: linux
>
> Dear Maintainer,
>
> *** Reporter, please consider answering these questions, where
> appropriate ***
>
> Since updating the kernel from linux-image-4.9.0-2-amd64 (4.9.18-1) to
> linux-image-4.9.0-3-amd64 (4.9.30-1) all VMs report - just for the
> "primary" interface this:
>
> TCP: ens192: Driver has suspect GRO implementation, TCP performance may
> be compromised.
>
> I can't see any performance impact. This happens on all our vSphere 6.0
> and 6.5 hosts (running on HPE ProLiant DL 360 G8 - G9 HW / ProLiant ML
> 350 G9 and so on).
>
> Why is this bug important? Because on one VM this also produces a kernel
> panic after some time (minutes or hours). I just could get the panic
> attached as screenshot. The only "big" difference between the crashing
> host and the others may be, that it is also running PM2, NPM, NodeJS and
> a NFS kernel server.
>
> If I boot the VM with 4.9.30-1 and deactivate gro and lro with:
> ethtool -K ens192 gro off
> ethtool -K ens192 lro off
> .. it does not crash.
>
> Booting 4.9.18-1 and everything is completly fine ;)
>

The VM keeps on crashing after a few hours

-- 
/*
Mit freundlichem Gruß / With kind regards,
 Patrick Matthäi
 GNU/Linux Debian Developer

  Blog: http://www.linux-dev.org/
E-Mail: pmatthaei@debian.org
        patrick@linux-dev.org
*/

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Bug#864642: vmxnet3: Reports suspect GRO implementation on vSphere hosts / one VM crashes Patrick Matthäi <pmatthaei@debian.org> - 2017-06-22 15:10 +0200
  Bug#864642: vmxnet3: Reports suspect GRO implementation on vSphere hosts / one VM crashes Patrick Matthäi <pmatthaei@debian.org> - 2017-07-11 10:30 +0200
    Processed: Re: vmxnet3: Reports suspect GRO implementation on  vSphere hosts / one VM crashes owner@bugs.debian.org (Debian Bug Tracking System) - 2017-07-11 10:30 +0200
    Bug#864642: vmxnet3: Reports suspect GRO implementation on vSphere hosts / one VM crashes Patrick Matthäi <pmatthaei@debian.org> - 2017-07-13 14:20 +0200
      Processed: Re: vmxnet3: Reports suspect GRO implementation on  vSphere hosts / one VM crashes owner@bugs.debian.org (Debian Bug Tracking System) - 2017-07-13 14:20 +0200

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