> Machines are opteron, fedora 7 up-to-date with its openfab libs,
> kernel 2.6.23-rc6 on target. Either 2.6.23-rc6 or 2.6.22 or
> 2.6.18-rhel5 on initiator. For some reason, it is much easier to
> produce with the rhel5 kernel.
There was a bug in mthca that caused data corruption with FMRs on
Sinai (1-port PCIe) HCAs. It was fixed in commit 608d8268 ("IB/mthca:
Fix data corruption after FMR unmap on Sinai") which went in shortly
before 2.6.21 was released. I don't know if the RHEL5 2.6.18 kernel
has this fix or not -- but if you still see the problem on 2.6.22 and
later kernels then this isn't the fix anyway.
- R.
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