This has been fixed upstream by the following commit:
commit 62a6cfddcc0a5313e7da3e8311ba16226fe0ac10
Author: Sachin Prabhu <spra...@redhat.com>
Date: Sun Apr 16 20:37:24 2017 +0100
cifs: Do not send echoes before Negotiate is complete
It has been cc'd to upstream stable and has landed in Xenial and Zesty
master-next via stable updates.
The Yakkety kernel is 4.8 based, which is not maintained upstream
anymore, so I'll submit an SRU request for it to be included in the
Ubuntu kernels.
** No longer affects: linux (Ubuntu Artful)
** Changed in: linux (Ubuntu Xenial)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Zesty)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1686099
Title:
connection flood to port 445 on mounting cifs volume under kernel
Status in Linux:
Fix Released
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Xenial:
Fix Committed
Status in linux source package in Yakkety:
In Progress
Status in linux source package in Zesty:
Fix Committed
Bug description:
This is identical to the bug reported on the Debian kernel list, only
I'm running 4.4.0, not 4.[89].0
After about 15 mintues, the cifsd daemon starts flooding echo requests
on port 445 to the windows server causing a constant 1MB/s load
(around 10,000 packets per second) that eventually leads to system
instability that forces a reboot to correct. This is repeatable and
as far as I know started about a week ago (possibly with the
installation of 4.4.0-75).
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=856843
To manage notifications about this bug go to:
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