Hopefully you are aware that GPFS 3.5 has been out of service since April 2017 unless you are on extended service. Might be a good time to consider upgrading.
Fred __________________________________________________ Fred Stock | IBM Pittsburgh Lab | 720-430-8821 [email protected] From: "Ratliff, John" <[email protected]> To: "[email protected]" <[email protected]> Date: 12/06/2018 11:53 AM Subject: [gpfsug-discuss] GPFS nodes crashing during policy scan Sent by: [email protected] We’re trying to run a policy scan to get a list of all the files in one of our filesets. There are approximately 600 million inodes in this space. We’re running GPFS 3.5. Every time we run the policy scan, the node that is running it ends up crashing. It makes it through a quarter of the inodes before crashing (i.e. kernel panic and system reboot). Nothing in the GPFS logs shows anything. It just notes that the node rebooted. In the crash logs of all the systems we’ve tried this on, we see the same line. <1>BUG: unable to handle kernel NULL pointer dereference at 00000000000000d8 <1>IP: [<ffffffffa03fb7b2>] _ZN6Direct5dreadEP15KernelOperationRK7FileUIDxiiiPvPFiS5_PKcixyS5_EPx+0xf2/0x590 [mmfs26] Our policy scan rule is pretty simple: RULE 'list-homedirs' LIST 'list-homedirs' mmapplypolicy /gs/home -A 607 -g /gpfs/tmp -f /gpfs/policy/output -N gpfs1,gpfs2,gpfs3,gpfs4 -P /tmp/homedirs.policy -I defer -L 1 Has anyone experienced something like this or have any suggestions on what to do to avoid it? Thanks. John Ratliff | Pervasive Technology Institute | UITS | Research Storage – Indiana University | http://pti.iu.edu [attachment "smime.p7s" deleted by Frederick Stock/Pittsburgh/IBM] _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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