From: Laurent Vivier <lvivier@redhat.com>
To: pannengyuan@huawei.com, mst@redhat.com
Cc: liyiting@huawei.com, zhang.zhanghailiang@huawei.com,
kuhn.chenqun@huawei.com, "Amit Shah" <amit@kernel.org>,
qemu-devel@nongnu.org,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>
Subject: Re: [PATCH v2 3/3] virtio-serial-bus: fix memory leak while attach virtio-serial-bus
Date: Wed, 4 Dec 2019 11:17:54 +0100 [thread overview]
Message-ID: <ad25a083-e4d7-0e02-9e0e-48d1afc715bb@redhat.com> (raw)
In-Reply-To: <1575444716-17632-3-git-send-email-pannengyuan@huawei.com>
On 04/12/2019 08:31, pannengyuan@huawei.com wrote:
> From: Pan Nengyuan <pannengyuan@huawei.com>
>
> ivqs/ovqs/c_ivq/c_ovq is forgot to cleanup in
> virtio_serial_device_unrealize, the memory leak stack is as bellow:
>
> Direct leak of 1290240 byte(s) in 180 object(s) allocated from:
> #0 0x7fc9bfc27560 in calloc (/usr/lib64/libasan.so.3+0xc7560)
> #1 0x7fc9bed6f015 in g_malloc0 (/usr/lib64/libglib-2.0.so.0+0x50015)
> #2 0x5650e02b83e7 in virtio_add_queue hw/virtio/virtio.c:2327
> #3 0x5650e02847b5 in virtio_serial_device_realize hw/char/virtio-serial-bus.c:1089
> #4 0x5650e02b56a7 in virtio_device_realize hw/virtio/virtio.c:3504
> #5 0x5650e03bf031 in device_set_realized hw/core/qdev.c:876
> #6 0x5650e0531efd in property_set_bool qom/object.c:2080
> #7 0x5650e053650e in object_property_set_qobject qom/qom-qobject.c:26
> #8 0x5650e0533e14 in object_property_set_bool qom/object.c:1338
> #9 0x5650e04c0e37 in virtio_pci_realize hw/virtio/virtio-pci.c:1801
>
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
> Cc: Laurent Vivier <lvivier@redhat.com>
> Cc: Amit Shah <amit@kernel.org>
> Cc: "Marc-André Lureau" <marcandre.lureau@redhat.com>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> ---
> Changes v2 to v1:
> - use virtio_delete_queue to cleanup vq through a vq pointer (suggested by
> Michael S. Tsirkin)
> ---
> hw/char/virtio-serial-bus.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c
> index 3325904..e1cbce3 100644
> --- a/hw/char/virtio-serial-bus.c
> +++ b/hw/char/virtio-serial-bus.c
> @@ -1126,9 +1126,17 @@ static void virtio_serial_device_unrealize(DeviceState *dev, Error **errp)
> {
> VirtIODevice *vdev = VIRTIO_DEVICE(dev);
> VirtIOSerial *vser = VIRTIO_SERIAL(dev);
> + int i;
>
> QLIST_REMOVE(vser, next);
>
> + virtio_delete_queue(vser->c_ivq);
> + virtio_delete_queue(vser->c_ovq);
> + for (i = 0; i < vser->bus.max_nr_ports; i++) {
> + virtio_delete_queue(vser->ivqs[i]);
> + virtio_delete_queue(vser->ovqs[i]);
> + }
> +
> g_free(vser->ivqs);
> g_free(vser->ovqs);
> g_free(vser->ports_map);
>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
next prev parent reply other threads:[~2019-12-04 11:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-04 7:31 [PATCH v2 1/3] virtio: add ability to delete vq through a pointer pannengyuan
2019-12-04 7:31 ` [PATCH v2 2/3] virtio-balloon: fix memory leak while attach virtio-balloon device pannengyuan
2019-12-04 10:16 ` Laurent Vivier
2019-12-04 7:31 ` [PATCH v2 3/3] virtio-serial-bus: fix memory leak while attach virtio-serial-bus pannengyuan
2019-12-04 10:17 ` Laurent Vivier [this message]
2019-12-04 14:41 ` Eric Blake
2019-12-09 16:51 ` Michael S. Tsirkin
2019-12-04 8:33 ` [PATCH v2 1/3] virtio: add ability to delete vq through a pointer Pankaj Gupta
2019-12-05 2:30 ` Pan Nengyuan
2019-12-05 4:51 ` Pankaj Gupta
2019-12-09 15:58 ` Michael S. Tsirkin
2019-12-04 9:40 ` Laurent Vivier
2019-12-04 14:40 ` Eric Blake
2019-12-05 2:35 ` Pan Nengyuan
2019-12-05 16:45 ` Amit Shah
2019-12-06 2:17 ` Pan Nengyuan
2019-12-06 8:56 ` Amit Shah
2019-12-06 9:00 ` Pan Nengyuan
2019-12-09 16:43 ` Michael S. Tsirkin
2019-12-09 16:58 ` Michael S. Tsirkin
2019-12-10 2:08 ` Pan Nengyuan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ad25a083-e4d7-0e02-9e0e-48d1afc715bb@redhat.com \
--to=lvivier@redhat.com \
--cc=amit@kernel.org \
--cc=kuhn.chenqun@huawei.com \
--cc=liyiting@huawei.com \
--cc=marcandre.lureau@redhat.com \
--cc=mst@redhat.com \
--cc=pannengyuan@huawei.com \
--cc=pbonzini@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=zhang.zhanghailiang@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).