Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation

IWAMOTO Toshihiro wrote:

If such memory were allocated by a driver, the memory could be placed
in non-hotremovable areas to avoid the above problems.

How can the driver allocated 3GB of pinned memory on a system with 3.5GB of RAM? Can vmalloc() or get_free_pages() allocate that much memory?

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• References:
  • [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Roland Dreier <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Troy Benjegerdes <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Roland Dreier <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Troy Benjegerdes <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Roland Dreier <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Troy Benjegerdes <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Roland Dreier <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Timur Tabi <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Christoph Hellwig <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Timur Tabi <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Roland Dreier <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Roland Dreier <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Timur Tabi <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Roland Dreier <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: IWAMOTO Toshihiro <[email protected]>

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