[LU-8700] dkms fails to build lustre on Power8 due to llite_loop missing Created: 13/Oct/16 Updated: 12/Nov/16 Resolved: 07/Nov/16 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | Lustre 2.8.0, Lustre 2.9.0 |
| Fix Version/s: | Lustre 2.9.0 |
| Type: | Bug | Priority: | Major |
| Reporter: | James A Simmons | Assignee: | Bruno Faccini (Inactive) |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Environment: |
Power8 clients running RHEL7. |
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| Issue Links: |
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| Severity: | 3 | ||||||||
| Rank (Obsolete): | 9223372036854775807 | ||||||||
| Description |
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On the Power8 platform the llite_loop device is not built but the dkms spec files expect that the llite_loop.ko is present. This causes lustre to fail to install using dkms on Power8 clients. |
| Comments |
| Comment by Andreas Dilger [ 13/Oct/16 ] |
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Since llite_loop was already removed in the upstream kernel, it makes sense just to delete it and the test(s) that reference it from master as well. |
| Comment by Bruno Faccini (Inactive) [ 13/Oct/16 ] |
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This should be handled in dkms.mkconf during on-target configure step. I will cook a patch to implement it. |
| Comment by Bruno Faccini (Inactive) [ 14/Oct/16 ] |
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I understand that llite_lloop.ko is not built for Power8 platform due to PAGE_SIZE == 65536, but I wonder if, due to its specific purpose/usage, it is not just/simply ok to ignore it during DKMS Client builds. On the other hand, in dkms.mkconf, do we need to find the PAGE_SIZE for the Kernel we build against (quite easy to implement) or just determine if it is a Lustre Server/Client build/package (much more easy!!) ?? |
| Comment by Gerrit Updater [ 18/Oct/16 ] |
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Faccini Bruno (bruno.faccini@intel.com) uploaded a new patch: http://review.whamcloud.com/23228 |
| Comment by Bruno Faccini (Inactive) [ 20/Oct/16 ] |
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Well in fact seems that I have misunderstood llite_lloop.ko module's features/usages, and its is mostly being used for Clients as it is mainly allowing Clients to use a Lustre file as a block-device (for example as their swap-device for diskless Clients, ...). |
| Comment by Bruno Faccini (Inactive) [ 24/Oct/16 ] |
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Gerrit-change #23228 now simply always ignore llite_lloop.ko module in DKMS. |
| Comment by Gerrit Updater [ 07/Nov/16 ] |
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Oleg Drokin (oleg.drokin@intel.com) merged in patch http://review.whamcloud.com/23228/ |
| Comment by Peter Jones [ 07/Nov/16 ] |
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Landed for 2.9 |