Displaying 20 results from an estimated 1000 matches similar to: "Question about eliminating virtio-scsi 30s timeout and hot-unplug"
2020 Mar 11
6
[PATCH RFC v2 02/24] scsi: allocate separate queue for reserved commands
On Tue, Mar 10, 2020 at 09:08:56PM +0000, John Garry wrote:
> On 10/03/2020 18:32, Christoph Hellwig wrote:
> > On Wed, Mar 11, 2020 at 12:25:28AM +0800, John Garry wrote:
> > > From: Hannes Reinecke <hare at suse.com>
> > >
> > > Allocate a separate 'reserved_cmd_q' for sending reserved commands.
> >
> > Why? Reserved command
2020 Mar 11
6
[PATCH RFC v2 02/24] scsi: allocate separate queue for reserved commands
On Tue, Mar 10, 2020 at 09:08:56PM +0000, John Garry wrote:
> On 10/03/2020 18:32, Christoph Hellwig wrote:
> > On Wed, Mar 11, 2020 at 12:25:28AM +0800, John Garry wrote:
> > > From: Hannes Reinecke <hare at suse.com>
> > >
> > > Allocate a separate 'reserved_cmd_q' for sending reserved commands.
> >
> > Why? Reserved command
2015 Sep 23
3
[RFC PATCH 0/2] virtio nvme
On Fri, 2015-09-18 at 14:09 -0700, Nicholas A. Bellinger wrote:
> On Fri, 2015-09-18 at 11:12 -0700, Ming Lin wrote:
> > On Thu, 2015-09-17 at 17:55 -0700, Nicholas A. Bellinger wrote:
> > > On Thu, 2015-09-17 at 16:31 -0700, Ming Lin wrote:
> > > > On Wed, 2015-09-16 at 23:10 -0700, Nicholas A. Bellinger wrote:
> > > > > Hi Ming & Co,
>
>
2015 Sep 23
3
[RFC PATCH 0/2] virtio nvme
On Fri, 2015-09-18 at 14:09 -0700, Nicholas A. Bellinger wrote:
> On Fri, 2015-09-18 at 11:12 -0700, Ming Lin wrote:
> > On Thu, 2015-09-17 at 17:55 -0700, Nicholas A. Bellinger wrote:
> > > On Thu, 2015-09-17 at 16:31 -0700, Ming Lin wrote:
> > > > On Wed, 2015-09-16 at 23:10 -0700, Nicholas A. Bellinger wrote:
> > > > > Hi Ming & Co,
>
>
2019 Apr 15
4
[RFC 0/3] VirtIO RDMA
On Thu, Apr 11, 2019 at 07:02:15PM +0200, Cornelia Huck wrote:
> On Thu, 11 Apr 2019 14:01:54 +0300
> Yuval Shaia <yuval.shaia at oracle.com> wrote:
>
> > Data center backends use more and more RDMA or RoCE devices and more and
> > more software runs in virtualized environment.
> > There is a need for a standard to enable RDMA/RoCE on Virtual Machines.
> >
2019 Apr 15
4
[RFC 0/3] VirtIO RDMA
On Thu, Apr 11, 2019 at 07:02:15PM +0200, Cornelia Huck wrote:
> On Thu, 11 Apr 2019 14:01:54 +0300
> Yuval Shaia <yuval.shaia at oracle.com> wrote:
>
> > Data center backends use more and more RDMA or RoCE devices and more and
> > more software runs in virtualized environment.
> > There is a need for a standard to enable RDMA/RoCE on Virtual Machines.
> >
2019 Apr 22
1
[Qemu-devel] [RFC 0/3] VirtIO RDMA
On Fri, Apr 19, 2019 at 01:16:06PM +0200, Hannes Reinecke wrote:
> On 4/15/19 12:35 PM, Yuval Shaia wrote:
> > On Thu, Apr 11, 2019 at 07:02:15PM +0200, Cornelia Huck wrote:
> > > On Thu, 11 Apr 2019 14:01:54 +0300
> > > Yuval Shaia <yuval.shaia at oracle.com> wrote:
> > >
> > > > Data center backends use more and more RDMA or RoCE devices and
2015 Mar 12
0
[PATCH] 9p/trans_virtio: fix hot-unplug
"Michael S. Tsirkin" <mst at redhat.com> writes:
> On device hot-unplug, 9p/virtio currently will kfree channel while
> it might still be in use.
>
> Of course, it might stay used forever, so it's an extremely ugly hack,
> but it seems better than use-after-free that we have now.
>
> Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
I'll
2015 Mar 12
0
[PATCH] 9p/trans_virtio: fix hot-unplug
"Michael S. Tsirkin" <mst at redhat.com> writes:
> On device hot-unplug, 9p/virtio currently will kfree channel while
> it might still be in use.
>
> Of course, it might stay used forever, so it's an extremely ugly hack,
> but it seems better than use-after-free that we have now.
>
> Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
I'll
2019 Feb 03
0
[PATCH v3 0/2] vsock/virtio: fix issues on device hot-unplug
From: Stefano Garzarella <sgarzare at redhat.com>
Date: Fri, 1 Feb 2019 12:42:05 +0100
> These patches try to handle the hot-unplug of vsock virtio transport device in
> a proper way.
>
> Maybe move the vsock_core_init()/vsock_core_exit() functions in the module_init
> and module_exit of vsock_virtio_transport module can't be the best way, but the
> architecture of
2020 Apr 23
0
[PATCH] virtio-blk: handle block_device_operations callbacks after hot unplug
On Thu, Apr 23, 2020 at 01:37:17PM +0100, Stefan Hajnoczi wrote:
> A virtio_blk block device can still be referenced after hot unplug by
> userspace processes that hold the file descriptor. In this case
> virtblk_getgeo() can be invoked after virtblk_remove() was called. For
> example, a program that has /dev/vdb open can call ioctl(HDIO_GETGEO)
> after hot unplug.
>
> Fix
2018 Oct 15
0
Re: Device lease hot unplug and events
On Fri, Oct 12, 2018 at 19:33:54 +0200, Milan Zamazal wrote:
> Hi, when working on hot unplugs of various devices, I've found out that
> hot unplugging <lease> device doesn't generate
> VIR_DOMAIN_EVENT_ID_DEVICE_REMOVED event. <lease> also doesn't have an
> alias, so it wouldn't be identifiable in the corresponding callback.
>
> Is this difference
2018 Oct 15
0
Re: Device lease hot unplug and events
On Mon, Oct 15, 2018 at 09:56:39 +0200, Milan Zamazal wrote:
> Peter Krempa <pkrempa@redhat.com> writes:
>
> > On Fri, Oct 12, 2018 at 19:33:54 +0200, Milan Zamazal wrote:
> >> Hi, when working on hot unplugs of various devices, I've found out that
> >> hot unplugging <lease> device doesn't generate
> >> VIR_DOMAIN_EVENT_ID_DEVICE_REMOVED
2015 Jan 08
0
CPU Hot Plug/Unplug with KVM on CentOS
Hello,
I'm trying to plug and unplug cpus with a host CentOS 7 on a guest machine
with CentOS too. I have created the guest with virt-install command,
modified my domxml to have maximum 4 vcpus and updated the current cpu to 2.
After that I open the virsh console, and used command setvcpus to
add/remove cpus. I was able to increase the vcpu count until 4 but can't
increase it after 4 as
2015 Mar 12
1
[PATCH] 9p/trans_virtio: fix hot-unplug
On Thu, Mar 12, 2015 at 11:54:10AM +1030, Rusty Russell wrote:
> "Michael S. Tsirkin" <mst at redhat.com> writes:
> > On device hot-unplug, 9p/virtio currently will kfree channel while
> > it might still be in use.
> >
> > Of course, it might stay used forever, so it's an extremely ugly hack,
> > but it seems better than use-after-free that we
2015 Mar 12
1
[PATCH] 9p/trans_virtio: fix hot-unplug
On Thu, Mar 12, 2015 at 11:54:10AM +1030, Rusty Russell wrote:
> "Michael S. Tsirkin" <mst at redhat.com> writes:
> > On device hot-unplug, 9p/virtio currently will kfree channel while
> > it might still be in use.
> >
> > Of course, it might stay used forever, so it's an extremely ugly hack,
> > but it seems better than use-after-free that we
2011 Mar 14
1
[PATCH] virtio_pci: Prevent double-free of pci regions after device hot-unplug
In the case where a virtio-console port is in use (opened by a program)
and a virtio-console device is removed, the port is kept around but all
the virtio-related state is assumed to be gone.
When the port is finally released (close() called), we call
device_destroy() on the port's device. This results in the parent
device's structures to be freed as well. This includes the PCI regions
2011 Mar 14
1
[PATCH] virtio_pci: Prevent double-free of pci regions after device hot-unplug
In the case where a virtio-console port is in use (opened by a program)
and a virtio-console device is removed, the port is kept around but all
the virtio-related state is assumed to be gone.
When the port is finally released (close() called), we call
device_destroy() on the port's device. This results in the parent
device's structures to be freed as well. This includes the PCI regions
2015 Jan 10
0
blk-mq v3.18: Oops during virtio_blk hot-unplug
On Fri, 01/09 15:32, Sebastian Parschauer wrote:
> Hi Jens,
>
> my colleague Eduardo is sporadically seeing an Oops in blk-mq while
> running continuous virtio_blk hot-plug/hot-unplug tests with I/O to the
> device within an x86_64 QEMU/KVM 2.0 Debian Wheezy VM.
>
> Please find the call trace attached and the full log here:
> http://paste.ubuntu.com/9691873/
>
>
2015 Jan 10
0
blk-mq v3.18: Oops during virtio_blk hot-unplug
On Fri, 01/09 15:32, Sebastian Parschauer wrote:
> Hi Jens,
>
> my colleague Eduardo is sporadically seeing an Oops in blk-mq while
> running continuous virtio_blk hot-plug/hot-unplug tests with I/O to the
> device within an x86_64 QEMU/KVM 2.0 Debian Wheezy VM.
>
> Please find the call trace attached and the full log here:
> http://paste.ubuntu.com/9691873/
>
>