[gpfsug-discuss] GPFS 3.5.0 on RHEL 6.8

[Lukas Hejtmanek]

Hello,

thank you for explanation. I confirm that things are working with 573 kernel.

On Tue, Aug 30, 2016 at 05:07:21PM -0400, mark.bergman at uphs.upenn.edu wrote:
> In the message dated: Tue, 30 Aug 2016 22:39:18 +0200,
> The pithy ruminations from Lukas Hejtmanek on 
> <[gpfsug-discuss] GPFS 3.5.0 on RHEL 6.8> were:
> => Hello,  
> 
> GPFS 3.5.0.[23..3-0] work for me under [CentOS|ScientificLinux] 6.8,
> but at kernel 2.6.32-573 and lower.
> 
> I've found kernel bugs in blk_cloned_rq_check_limits() in later kernel
> revs that caused multipath errors, resulting in GPFS being unable to
> find all NSDs and mount the filesystem.
> 
> I am not updating to a newer kernel until I'm certain this is resolved.
> 
> I opened a bug with CentOS:
> 
> 	https://bugs.centos.org/view.php?id=10997
> 
> and began an extended discussion with the (RH & SUSE) developers of that
> chunk of kernel code. I don't know if an upstream bug has been opened
> by RH, but see:
> 
> 	https://patchwork.kernel.org/patch/9140337/
> => 
> => does it work for anyone? As of kernel 2.6.32-642, GPFS 3.5.0 (including the
> => latest patch 32) does start but does not mount and file system. The internal
> => mount cmd gets stucked. 
> => 
> => -- 
> => Lukáš Hejtmánek  
> 
> 
> -- 
> Mark Bergman                                           voice: 215-746-4061       
> mark.bergman at uphs.upenn.edu                              fax: 215-614-0266
> http://www.cbica.upenn.edu/
> IT Technical Director, Center for Biomedical Image Computing and Analytics
> Department of Radiology                         University of Pennsylvania
>           PGP Key: http://www.cbica.upenn.edu/sbia/bergman 
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-- 
Lukáš Hejtmánek