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From 3fdd5ce3ece26d5fd0d7702e08167bf5e513f620 Mon Sep 17 00:00:00 2001
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From: Fam Zheng <famz@redhat.com>
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Date: Mon, 18 Apr 2016 02:50:12 +0200
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Subject: [PATCH 01/10] virtio-scsi: Prevent assertion on missed events
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RH-Author: Fam Zheng <famz@redhat.com>
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Message-id: <1460947812-5704-1-git-send-email-famz@redhat.com>
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Patchwork-id: 70202
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O-Subject: [RHEL-7.3 qemu-kvm PATCH] virtio-scsi: Prevent assertion on missed events
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Bugzilla: 1312289
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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From: Eric Farman <farman@linux.vnet.ibm.com>
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In some cases, an unplug can cause events to be dropped, which
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leads to an assertion failure when preparing to notify the guest
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kernel.
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Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
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Cc: qemu-stable@nongnu.org
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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(cherry picked from commit 49fb65c7f985baa56d2964e0a85c1f098e3e2a9d)
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Signed-off-by: Fam Zheng <famz@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/scsi/virtio-scsi.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
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index 8232fc9..808eb54 100644
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--- a/hw/scsi/virtio-scsi.c
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+++ b/hw/scsi/virtio-scsi.c
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@@ -530,7 +530,7 @@ static void virtio_scsi_push_event(VirtIOSCSI *s, SCSIDevice *dev,
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evt->event = event;
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evt->reason = reason;
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if (!dev) {
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- assert(event == VIRTIO_SCSI_T_NO_EVENT);
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+ assert(event == VIRTIO_SCSI_T_EVENTS_MISSED);
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} else {
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evt->lun[0] = 1;
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evt->lun[1] = dev->id;
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--
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1.8.3.1
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