From c88876ddab22e053abd5ba976cfc1beb43a23b6e Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 7 May 2012 12:51:55 -0300 Subject: [RHEL6 qemu-kvm PATCH 1/6] block: do not reuse the backing file across bdrv_close/bdrv_open RH-Author: Paolo Bonzini Message-id: <1336395115-4138-3-git-send-email-pbonzini@redhat.com> Patchwork-id: 39607 O-Subject: [RHEL 6.3 qemu-kvm PATCH] block: do not reuse the backing file across bdrv_close/bdrv_open Bugzilla: 816471 RH-Acked-by: Kevin Wolf RH-Acked-by: Laszlo Ersek RH-Acked-by: Eduardo Habkost Bugzilla: 816471 Upstream status: waiting for instructions from Kevin on how to best empty my queue... Brew build: https://brewweb.devel.redhat.com/taskinfo?taskID=4375106 This is another bug caused by not doing a full cleanup of the BDS across close/open. This was found with mirroring by Shaolong Hu, but it can probably be reproduced also with eject or change. Signed-off-by: Paolo Bonzini --- block.c | 2 ++ 1 file changed, 2 insertions(+) Signed-off-by: Eduardo Habkost --- block.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/block.c b/block.c index 6df77ac..e05a9c6 100644 --- a/block.c +++ b/block.c @@ -706,6 +706,8 @@ void bdrv_close(BlockDriverState *bs) bs->opaque = NULL; bs->drv = NULL; bs->copy_on_read = 0; + bs->backing_file[0] = '\0'; + bs->backing_format[0] = '\0'; if (bs->file != NULL) { bdrv_close(bs->file); -- 1.7.3.2