qemu/backup-top-Begin-drain-earlier.patch
Bruce Rogers b7616307b7 Accepting request 762845 from home:bfrogers:branches:Virtualization
Include SLE feature requests, misc upstream stable bug fixes, and repair Jira feature references

OBS-URL: https://build.opensuse.org/request/show/762845
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=521
2020-01-10 14:18:12 +00:00

41 lines
1.3 KiB
Diff

From: Max Reitz <mreitz@redhat.com>
Date: Thu, 19 Dec 2019 19:26:38 +0100
Subject: backup-top: Begin drain earlier
Git-commit: 503ca1262bab2c11c533a4816d1ff4297d4f58a6
When dropping backup-top, we need to drain the node before freeing the
BlockCopyState. Otherwise, requests may still be in flight and then the
assertion in shres_destroy() will fail.
(This becomes visible in intermittent failure of 056.)
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20191219182638.104621-1-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
block/backup-top.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/block/backup-top.c b/block/backup-top.c
index 7cdb1f8eba1065c04057b4a2137e..818d3f26b48da425ba061e21887f 100644
--- a/block/backup-top.c
+++ b/block/backup-top.c
@@ -257,12 +257,12 @@ void bdrv_backup_top_drop(BlockDriverState *bs)
BDRVBackupTopState *s = bs->opaque;
AioContext *aio_context = bdrv_get_aio_context(bs);
- block_copy_state_free(s->bcs);
-
aio_context_acquire(aio_context);
bdrv_drained_begin(bs);
+ block_copy_state_free(s->bcs);
+
s->active = false;
bdrv_child_refresh_perms(bs, bs->backing, &error_abort);
bdrv_replace_node(bs, backing_bs(bs), &error_abort);