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From: Nissim Nisimov <NissimN@Radware.com>
To: "dev@dpdk.org" <dev@dpdk.org>
Thread-Topic: running dpdk 2.1 on openstak causes CPU soft lockup
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Date: Mon, 23 Nov 2015 19:44:09 +0000
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Subject: [dpdk-dev] running dpdk 2.1 on openstak causes CPU soft lockup
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Hi,

I am running DPDK 2.1.0 based app on OpenStack KVM guest.  OS of guest is U=
buntu LTS 14.04 3.13 kernel.
virtio.

After upgrade to dpdk 2.1 (previous version was dpdk 1.8 and it worked fine=
) we are seeing the following issue:

[960.004535] BUG: soft lockup - CPU#3 stuck for 23s! [ip:8419]

The message will be printed in an endless loop and the system won't recover=
.

Is it a known issue in dpdk 2.1? any patch I can apply in order to overcome=
 this?


Thx
Nissim