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| author | Pan Nengyuan <pannengyuan@huawei.com> | 2020-01-17 15:55:46 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-01-22 00:23:07 -0500 |
| commit | dd958f9ef44e2639a384fb9f764ff0bc8181abcd (patch) | |
| tree | 7cde7e6d4aa85993f5146b0e9e08f9dc807331d2 | |
| parent | ad30a9e9043ac6ca386d5baca71e6c3d33bfcb9c (diff) | |
| download | qemu-dd958f9ef44e2639a384fb9f764ff0bc8181abcd.zip qemu-dd958f9ef44e2639a384fb9f764ff0bc8181abcd.tar.gz qemu-dd958f9ef44e2639a384fb9f764ff0bc8181abcd.tar.bz2 | |
virtio-scsi: delete vqs in unrealize to avoid memleaks
This patch fix memleaks when attaching/detaching virtio-scsi device, the
memory leak stack is as follow:
Direct leak of 21504 byte(s) in 3 object(s) allocated from:
#0 0x7f491f2f2970 (/lib64/libasan.so.5+0xef970) ??:?
#1 0x7f491e94649d (/lib64/libglib-2.0.so.0+0x5249d) ??:?
#2 0x564d0f3919fa (./x86_64-softmmu/qemu-system-x86_64+0x2c3e9fa) /mnt/sdb/qemu/hw/virtio/virtio.c:2333
#3 0x564d0f2eca55 (./x86_64-softmmu/qemu-system-x86_64+0x2b99a55) /mnt/sdb/qemu/hw/scsi/virtio-scsi.c:912
#4 0x564d0f2ece7b (./x86_64-softmmu/qemu-system-x86_64+0x2b99e7b) /mnt/sdb/qemu/hw/scsi/virtio-scsi.c:924
#5 0x564d0f39ee47 (./x86_64-softmmu/qemu-system-x86_64+0x2c4be47) /mnt/sdb/qemu/hw/virtio/virtio.c:3531
#6 0x564d0f980224 (./x86_64-softmmu/qemu-system-x86_64+0x322d224) /mnt/sdb/qemu/hw/core/qdev.c:865
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200117075547.60864-2-pannengyuan@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
| -rw-r--r-- | hw/scsi/virtio-scsi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index 4bc73a3..858b3aa 100644 --- a/hw/scsi/virtio-scsi.c +++ b/hw/scsi/virtio-scsi.c @@ -943,7 +943,13 @@ void virtio_scsi_common_unrealize(DeviceState *dev) { VirtIODevice *vdev = VIRTIO_DEVICE(dev); VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(dev); + int i; + virtio_del_queue(vdev, 0); + virtio_del_queue(vdev, 1); + for (i = 0; i < vs->conf.num_queues; i++) { + virtio_del_queue(vdev, i + 2); + } g_free(vs->cmd_vqs); virtio_cleanup(vdev); } |