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

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On Mon, 12 Jun 2017 10:02:56 +0200 =?UTF-8?Q?Patrick_Matth=c3=a4i?=
<pmatthaei@debian.org> wrote:

> 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).

I see the same for my Stretch Test VMs, running on ESXi 5.5 on Dell R720.

I have yet to experience a kernel panic, but those VMs are mostly idle
and don't transfer many bytes via network, so the crash-intensity might
be related to the amount of data transmitted or the peak throughput at
some time.

Grüße,
Sven.

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Bug#864642: vmxnet3: Reports suspect GRO implementation on vSphere hosts / one VM crashes Sven Hartge <sven@svenhartge.de> - 2017-07-06 12:10 +0200
  Bug#864642: vmxnet3: Reports suspect GRO implementation on vSphere hosts / one VM crashes Sven Hartge <sven@svenhartge.de> - 2017-07-06 22:00 +0200
    Bug#864642: vmxnet3: Reports suspect GRO implementation on vSphere hosts / one VM crashes Ben Hutchings <ben@decadent.org.uk> - 2017-07-16 23:50 +0200
      Processed: Re: Bug#864642: vmxnet3: Reports suspect GRO  implementation on vSphere hosts / one VM crashes owner@bugs.debian.org (Debian Bug Tracking System) - 2017-07-16 23:50 +0200
      Bug#864642: vmxnet3: Reports suspect GRO implementation on vSphere hosts / one VM crashes Patrick Matthäi <pmatthaei@debian.org> - 2017-08-03 15:40 +0200
        Processed: Re: Bug#864642: vmxnet3: Reports suspect GRO  implementation on vSphere hosts / one VM crashes owner@bugs.debian.org (Debian Bug Tracking System) - 2017-08-03 15:40 +0200
        Bug#864642: vmxnet3: Reports suspect GRO implementation on vSphere hosts / one VM crashes Sven Hartge <sven@svenhartge.de> - 2017-08-03 16:30 +0200
          Bug#864642: vmxnet3: Reports suspect GRO implementation on vSphere hosts / one VM crashes Sven Hartge <sven@svenhartge.de> - 2017-08-08 11:50 +0200

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