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[Bug 1505564] Re: Soft lockup with "block nbdX: Attempted send on closed socket" spam

 

Okay,

PPA is ready:

https://launchpad.net/~inaddy/+archive/ubuntu/lp1505564/+packages

Please upgrade kernel to:

linux-lts-vivid - 3.19.0-36.41~14.04.1hf00090138v20151122b1

By doing:

$ sudo add-apt-repository ppa:inaddy/lp1505564
$ sudo apt-get update
$ sudo apt-get install linux-image-3.19.0-36-generic linux-image-extra-3.19.0-36-generic linux-headers-3.19.0-36-generic 

And make sure packages are being installed from PPA. Then reboot server
using the hotfixed kernel.

I'm looking forward on hearing feedback if this kernel mitigated the
issues.

Cheers

Rafael Tinoco

-- 
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1505564

Title:
  Soft lockup with "block nbdX: Attempted send on closed socket" spam

Status in linux package in Ubuntu:
  In Progress

Bug description:
  Some of our nova compute hosts regularly freeze, sometimes for a few
  hours, with kern.log getting spammed with:

  block nbdX: Attempted send on closed socket

  and a few "CPU soft lockup" messages (see attached log). This clears
  up when the queue gets cleared, eg :

  block nbdX: queue cleared

  trusty hosts with kernel version 3.19.0-30-generic.

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References