[Qemu-block] [PATCH 0/3] block: fix 'savevm' hang with -object iothread

[Stefan Hajnoczi]

The 'savevm' command hangs when -object iothread is used.  See patches for
details, but basically the vmstate read/write code didn't conform to the latest
block layer locking rules.

Stefan Hajnoczi (3):
  block: count bdrv_co_rw_vmstate() requests
  block: use BDRV_POLL_WHILE() in bdrv_rw_vmstate()
  migration: avoid recursive AioContext locking in save_vmstate()

 block/io.c         | 21 +++++++++++++--------
 migration/savevm.c | 12 +++++++++++-
 2 files changed, 24 insertions(+), 9 deletions(-)

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2.9.3