[OpenAFS] openafs client crashs after ubuntu kernel update

[Jeffrey Altman]

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On 4/7/2016 3:08 AM, Andreas Ladanyi wrote:
> Short feedback:
> The workaround with afs_GenericStoreProc works for the first tests.
> Colleges told me that the workaround with afs_GenericStoreProc seems to=

> result in slower read/write operations.


The performance of OpenAFS returning to the use of afs_GenericStoreProc
is equivalent to that of the 1.4.x release series.

Slide 19 of

  http://conferences.inf.ed.ac.uk/eakc2012/slides/AFS_Performance.pdf

will show you the difference in the performance curve.  The blue line
will be equivalent to the performance of OpenAFS 1.6.17 on the Linux 4.3
kernel and the green line will be the performance of the upcoming 1.6.18
on the Linux 4.4 and later kernels.

The AuriStorFS clients for Linux 4.4 through 4.6.rc1 do not suffer this
performance degradation.

Jeffrey Altman
AuriStor, Inc.


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