[lustre-discuss] BAD CHECKSUM

Hans Henrik Happe happe at nbi.dk
Thu Dec 7 09:37:18 PST 2017


Can an application cause BAD CHECKSUM errors in Lustre logs by somehow
overwriting memory while being DMA'ed to network?

After upgrading to 2.10.1 on the server side we started seeing this from
a user's application (MPI I/O). Both 2.9.0 and 2.10.1 clients emit these
errors. We have not yet established weather the application is doing
things correctly.

Hans Henrik

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