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[Qemu-devel] [PATCH v2 0/4] block: fix 'savevm' hang with -object iothre
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH v2 0/4] block: fix 'savevm' hang with -object iothread |
Date: |
Fri, 19 May 2017 11:32:43 +0100 |
v2:
* New patch to use bdrv_drain_all_begin/end() in savevm/loadvm [Kevin]
(All other patches unchanged)
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 (4):
block: count bdrv_co_rw_vmstate() requests
block: use BDRV_POLL_WHILE() in bdrv_rw_vmstate()
migration: avoid recursive AioContext locking in save_vmstate()
migration: use bdrv_drain_all_begin/end() instead bdrv_drain_all()
block/io.c | 21 +++++++++++++--------
migration/savevm.c | 21 +++++++++++++++++++--
2 files changed, 32 insertions(+), 10 deletions(-)
--
2.9.3
- [Qemu-devel] [PATCH v2 0/4] block: fix 'savevm' hang with -object iothread,
Stefan Hajnoczi <=