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From: Kevin Wolf <kwolf@redhat.com>
To: qemu-devel@nongnu.org
Cc: kwolf@redhat.com, mst@redhat.com, quintela@redhat.com,
	peterx@redhat.com, leobras@redhat.com, stefanha@redhat.com,
	pbonzini@redhat.com, qemu-block@nongnu.org,
	qemu-stable@nongnu.org
Subject: [PATCH 0/2] virtio: Drop out of coroutine context in virtio_load()
Date: Tue,  5 Sep 2023 16:50:00 +0200	[thread overview]
Message-ID: <20230905145002.46391-1-kwolf@redhat.com> (raw)

This fixes a recently introduced assertion failure that was reported to
happen when migrating virtio-net with a failover. The latent bug that
we're executing code in coroutine context that was never supposed to run
there has existed for a long time. However, the new assertion that
callers of bdrv_graph_rdlock_main_loop() don't run in coroutine context
makes it very visible because it's now always a crash.

Kevin Wolf (2):
  vmstate: Mark VMStateInfo.get/put() coroutine_mixed_fn
  virtio: Drop out of coroutine context in virtio_load()

 include/migration/vmstate.h |  8 ++++---
 hw/virtio/virtio.c          | 45 ++++++++++++++++++++++++++++++++-----
 2 files changed, 45 insertions(+), 8 deletions(-)

-- 
2.41.0



             reply	other threads:[~2023-09-05 14:51 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-05 14:50 Kevin Wolf [this message]
2023-09-05 14:50 ` [PATCH 1/2] vmstate: Mark VMStateInfo.get/put() coroutine_mixed_fn Kevin Wolf
2023-09-05 15:06   ` Peter Xu
2023-09-05 14:50 ` [PATCH 2/2] virtio: Drop out of coroutine context in virtio_load() Kevin Wolf
2023-09-07 18:40   ` Stefan Hajnoczi
2023-09-08  8:59     ` Kevin Wolf
2023-09-08 10:46       ` Stefan Hajnoczi
2023-10-17  5:19   ` Michael Tokarev
2023-10-17  8:48     ` Kevin Wolf
2023-10-17 13:06     ` Juan Quintela
2023-09-07 18:42 ` [PATCH 0/2] " Stefan Hajnoczi
2023-09-08  8:53   ` Kevin Wolf
2023-09-08 10:46 ` Stefan Hajnoczi

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