[SPDK] Re: Using cmb_copy in QEMU environment

Harris, James R <james.r.harris at intel.com> Mon, 20 Apr 2020 15:46:36 +0000

Newsgroups	dev.linux.lists.spdk
Message-ID	<[email protected]>


On 4/20/20, 8:38 AM, "Stephen  Bates" <sbates(a)raithlin.com> wrote:

    Hi All

    > Thanks for reporting, could you submit a github issue? Thanks.

    Can you point me to the issue when created. I added the cmb_copy example a while back and it was working in QEMU at that time. I suspect this is a memory allocation regression and would like to track the issue. Note the Linux kernel equivalent  (p2pdma) *does* still work inside QEMUwith fake NVMe SSDs. So this seems to be an SPDK specific thing...

Hi Archie and Changpeng,

Could you also try commit 3429f97?  This commit is just before some CMB-related patches that were recently merged.

-Jim


    Cheers

    Stephen 




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