[Qemu-devel] [PATCH v2 0/5] A bunch of RDMA fixes

Dr. David Alan Gilbert (git) posted 5 patches 6 years, 8 months ago
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git fetch https://github.com/patchew-project/qemu tags/patchew/20170713115649.11853-1-dgilbert@redhat.com
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migration/migration.c |   1 +
migration/rdma.c      | 122 +++++++++++++++++++++++++++++++++++---------------
2 files changed, 88 insertions(+), 35 deletions(-)
[Qemu-devel] [PATCH v2 0/5] A bunch of RDMA fixes
Posted by Dr. David Alan Gilbert (git) 6 years, 8 months ago
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

  This is a bunch of RDMA fixes, the first is a race
I spotted a while ago that you don't hit during normal
operation; the rest are to do with migration failure and
cancellation that I started looking at because of lp1545052 which
is a failure to recover on the source if the destination
fails.

  I'm pretty sure there are other cases where the source
might hang waiting for a failed destination; particularly
if the destination hangs rather than fails completely;
one I know of is waiting for the event after the rdma_disconnect
but I don't have a good fix for it.  Suggestions welcome.

v2
  Dropped the timeout in the poll to 0.1s
  Don't check error_reported, just error_state and received_error

Dr. David Alan Gilbert (5):
  migration/rdma: Fix race on source
  migration: Close file on failed migration load
  migration/rdma: Allow cancelling while waiting for wrid
  migration/rdma: Safely convert control types
  migration/rdma: Send error during cancelling

 migration/migration.c |   1 +
 migration/rdma.c      | 122 +++++++++++++++++++++++++++++++++++---------------
 2 files changed, 88 insertions(+), 35 deletions(-)

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2.13.0