Re: Linux RDMA mini-conf at Plumbers 2018

Leon Romanovsky
2018-09-20T18:54:36Z

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On Thu, Sep 20, 2018 at 12:19:23PM -0600, Jason Gunthorpe wrote:
> This is just a friendly reminder that registration deadlines are
> approaching for this conference. Please see
>
> https://www.linuxplumbersconf.org/event/2/page/7-attend
>
> For details.
>
> This year we expect to have close to a day set aside for RDMA related
> topics. Including up to half a day for the thorny general kernel issues
> related to get_user_pages(), particularly as exasperated by RDMA.
>
> We have been working on the following concepts for sessions, I've
> roughly marked names based on past participation in related email
> threads. As we get closer to the conference date we will be organizing
> leaders for each section based on these lists, please let us know of
> any changes, or desire to be a leader!
>
> RDMA and get_user_pages
> =======================
> Dan Williams <dan.j.williams@intel.com>
> Matthew Wilcox <willy@infradead.org>
> John Hubbard <jhubbard@nvidia.com>
> Nicholas Piggin <npiggin@gmail.com>
> Jan Kara <jack@suse.cz>
>
> RDMA, DAX and persistant memory co-existence.
>
> Explore the limits of what is possible without using On
> Demand Paging Memory Registration. Discuss 'shootdown'
> of userspace MRs
>
> Dirtying pages obtained with get_user_pages() can oops ext4
> discuss open solutions.
>
> RDMA and PCI peer to peer
> =========================
> Don Dutile <ddutile@redhat.com>
> Alex Williamson <alex.williamson@redhat.com>
> Christoph Hellwig <hch@lst.de>
> Stephen Bates <sbates@raithlin.com>
> Logan Gunthorpe <logang@deltatee.com>
> Jérôme Glisse <jglisse@redhat.com>
> Christian König <christian.koenig@amd.com>
> Bjorn Helgaas <bhelgaas@google.com>
>
> RDMA and PCI peer to peer transactions. IOMMU issues. Integration
> with HMM. How to expose PCI BAR memory to userspace and other
> drivers as a DMA target.
>
> Improving testing of RDMA with syzkaller, RXE and Python
> ========================================================
> Noa Osherovich <noaos@mellanox.com>
> Don Dutile <ddutile@redhat.com>
> Jason Gunthorpe <jgg@mellanox.com>
>
> Problem solve RDMA's distinct lack of public tests.
> Provide a better framework for all drivers to test with,
> and a framework for basic testing in userspace.
>
> Worst remaining unfixed syzkaller bugs and how to try to fix them
>
> How to hook syzkaller more deeply into RDMA.
>
> IOCTL conversion and new kABI topics
> ====================================
> Jason Gunthorpe <jgg@mellanox.com>
> Alex Rosenbaum <alexr@mellanox.com>
>
> Attempt to close on the remaining tasks to complete the project
>
> Restore fork() support to userspace
>
> Container and namespaces for RDMA topics
> ========================================
> Parav Pandit <parav@mellanox.com>
> Doug Ledford <dledford@redhat.com>
>
> Remaining sticky situations with containers
>
> namespaces in sysfs and legacy all-namespace operation
>
> Remaining CM issues
>
> Security isolation problems
>
> Very large Contiguous regions in userspace
> ==========================================
> Christopher Lameter <cl@linux.com>
> Parav Pandit <parav@mellanox.com>
>
> Poor performance of get_user_pages on very large virtual ranges
>
> No standardized API to allocate regions to user space
>
> Carry over from last year
>
> As we get closer to the conference date the exact schedule will be
> published on the conference web site. I belive we have the Thursday
> set aside right now.
>
> If there are any last minute topics people would like to see please
> let us know.

I want to remind you that Mike wanted to bring the topic of enhancing
remote page faults during post-copy container migration in CRIU over
RDMA.

Thanks

>
> See you all in Vancouver!
>
> Thanks,
> Jason & Leon
>

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