Re: SG does not ignore dxferp (direct io + mmap)

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On Tue, Nov 22, 2016 at 10:31:23AM -0500, Laurence Oberman wrote:
[...]

> Its not failing on 4.8-rc2 so working on tracing rgw ioctl SG_DXFER_FROM_DEV as well and will bisect this weekend and/or add some kernel probes.
> Just need to get some time.
> Johannes or Ewan may beat me to it.

Sounds like a good plan. I did work on an automated test setup all day but
couldn't recreate the bug with qemu (and it's default AHCI emulation, will
try virtio-scsi tomorrow).

@Eyal is this with a physical or virtual host? And what kind of HBA do you
have? Just in case it makes a difference.

Byte,
	Johannes

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