From: Anthony PERARD <anthony.perard@citrix.com>
To: Juergen Gross <jgross@suse.com>
Cc: qemu-devel@nongnu.org, xen-devel@lists.xensource.com,
kraxel@redhat.com, sstabellini@kernel.org
Subject: Re: [Qemu-devel] [PATCH v2 2/2] xen: drain submit queue in xen-usb before removing device
Date: Tue, 2 Aug 2016 16:26:44 +0100 [thread overview]
Message-ID: <20160802152644.GU1835@perard.uk.xensource.com> (raw)
In-Reply-To: <1470140044-16492-3-git-send-email-jgross@suse.com>
On Tue, Aug 02, 2016 at 02:14:04PM +0200, Juergen Gross wrote:
> When unplugging a device in the Xen pvusb backend drain the submit
> queue before deallocation of the control structures. Otherwise there
> will be bogus memory accesses when I/O contracts are finished.
>
> Correlated to this issue is the handling of cancel requests: a packet
> cancelled will still lead to the call of complete, so add a flag
> to the request indicating it should be just dropped on complete.
>
> Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
--
Anthony PERARD
prev parent reply other threads:[~2016-08-02 15:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-02 12:14 [Qemu-devel] [PATCH v2 0/2] xen: bug fixes in Xen backend handling Juergen Gross
2016-08-02 12:14 ` [Qemu-devel] [PATCH v2 1/2] xen: when removing a backend don't remove many of them Juergen Gross
2016-08-02 12:14 ` [Qemu-devel] [PATCH v2 2/2] xen: drain submit queue in xen-usb before removing device Juergen Gross
2016-08-02 15:26 ` Anthony PERARD [this message]
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