Roland Dreier wrote:
> 472 Data corruption with Lustre+OFED when using FMR on memfree HCAs
>
> We see it also with iser, basically only on scsi --read-- which from
> IB perspective is RDMA write from the target to the initiator.
>
> The env we see it is Sinai (25204) hw_ver=A0 and fw_ver=1.2.0
>
> Ishai did not manage to reproduce it with SRP, but the fact it
> reproduced with two independent ULPs makes it a blocker, i think.
We definitely need more info here. Why are you confident that the two
problems are the same bug?
Have you tested with mem-free Arbel, and does the problem occur there
too? Or have you only tested Sinai? Does the problem go away if you
remove the MTHCA_FLAG_SINAI_OPT flag from the mthca_hca_table[] entry
in mthca_main.c?
Hi Roland,
We don't have memfree Arbel here however, your suggestion to remove the
MTHCA_FLAG_SINAI_OPT flag from the mthca_hca_table[] entry in
mthca_main.c seemed to provide a work around (and hopefully a direction
to solve the problem...) it is running for two hours now without
reproducing the corruption. I will leave it over night and let you know.
Do you have any idea what why does the code breaks with
MTHCA_FLAG_SINAI_OPT ?
thanks again,
Or.
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