Displaying 20 results from an estimated 300 matches similar to: "nbdkit & qemu 2.12: qemu-img: Protocol error: simple reply when structured reply chunk was expected"
2019 Aug 23
22
cross-project patches: Add NBD Fast Zero support
This is a cover letter to a series of patches being proposed in tandem
to four different projects:
- nbd: Document a new NBD_CMD_FLAG_FAST_ZERO command flag
- qemu: Implement the flag for both clients and server
- libnbd: Implement the flag for clients
- nbdkit: Implement the flag for servers, including the nbd passthrough
client
If you want to test the patches together, I've pushed a
2019 Mar 23
0
Re: nbdkit & qemu 2.12: qemu-img: Protocol error: simple reply when structured reply chunk was expected
On 3/23/19 6:42 AM, Richard W.M. Jones wrote:
> nbdkit (upstream 5a7a394c699) currently fails with qemu 2.12.0:
>
> $ ./nbdkit memory size=64M --run 'qemu-img convert $nbd /var/tmp/out'
> nbdkit: memory.2: error: invalid request: unknown command (7) ignored
> qemu-img: Protocol error: simple reply when structured reply chunk was expected
>
> This was a bug in
2018 Apr 03
2
[RFC PATCH 1/3] qemu: virtio-bypass should explicitly bind to a passthrough device
On Sun, Apr 01, 2018 at 05:13:08AM -0400, Si-Wei Liu wrote:
> @@ -896,6 +898,68 @@ void qmp_device_del(const char *id, Error **errp)
> }
> }
>
> +int pci_get_busdevfn_by_id(const char *id, uint16_t *busnr,
> + uint16_t *devfn, Error **errp)
> +{
> + uint16_t busnum = 0, slot = 0, func = 0;
> + const char *pc, *pd, *pe;
> +
2019 Jun 21
0
[libnbd PATCH v2 3/5] states: Add nbd_pread_structured API
Time to wire up user access to react to structured reads as the chunks
come in, exposing the framework added in the last patch. I chose to
use Int for the callback status rather than an enum for ease of wiring
things up to the various language bindings.
It's easy to test callback behavior for LIBNBD_READ_DATA/HOLE (the
next patch will add interop tests with qemu-nbd), but at present, I
2016 Jul 18
3
[PATCH 2/3] qemu: Implement virtio-pstore device
From: Namhyung Kim <namhyung at gmail.com>
Add virtio pstore device to allow kernel log files saved on the host.
It will save the log files on the directory given by pstore device
option.
$ qemu-system-x86_64 -device virtio-pstore,directory=dir-xx ...
(guest) # echo c > /proc/sysrq-trigger
$ ls dir-xx
dmesg-0.enc.z dmesg-1.enc.z
The log files are usually compressed using
2019 Jun 18
0
[libnbd PATCH 6/8] states: Add nbd_pread_callback API
Time to wire up user access to react to structured reads as the chunks
come in, exposing the framework added in the last patch.
I chose to use an int for the callback status rather than an enum for
ease of wiring things up to the various language bindings. Still, it
required quite a few tweaks to the generator to support an Int type in
a callback.
It's easy to test callback behavior for
2016 Jul 27
11
[RFC/PATCHSET 0/7] virtio: Implement virtio pstore device (v2)
Hello,
This is v2 of the virtio-pstore work. In this patchset I addressed
most of feedbacks from previous version. Limiting disk size is not
implemented yet.
* changes in v2)
- update VIRTIO_ID_PSTORE to 22 (Cornelia, Stefan)
- make buffer size configurable (Cornelia)
- support PSTORE_TYPE_CONSOLE (Kees)
- use separate virtqueues for read and write
- support concurrent async
2016 Jul 27
11
[RFC/PATCHSET 0/7] virtio: Implement virtio pstore device (v2)
Hello,
This is v2 of the virtio-pstore work. In this patchset I addressed
most of feedbacks from previous version. Limiting disk size is not
implemented yet.
* changes in v2)
- update VIRTIO_ID_PSTORE to 22 (Cornelia, Stefan)
- make buffer size configurable (Cornelia)
- support PSTORE_TYPE_CONSOLE (Kees)
- use separate virtqueues for read and write
- support concurrent async
2016 Aug 20
7
[RFC/PATCHSET 0/3] virtio: Implement virtio pstore device (v3)
Hello,
This is another iteration of the virtio-pstore work. In this patchset
I addressed most of feedbacks from previous version and drooped the
support for PSTORE_TYPE_CONSOLE for simplicity. It'll be added once the basic implementation
* changes in v3)
- use QIOChannel API (Stefan, Daniel)
- add bound check for malcious guests (Daniel)
- drop support PSTORE_TYPE_CONSOLE for now
2016 Aug 20
7
[RFC/PATCHSET 0/3] virtio: Implement virtio pstore device (v3)
Hello,
This is another iteration of the virtio-pstore work. In this patchset
I addressed most of feedbacks from previous version and drooped the
support for PSTORE_TYPE_CONSOLE for simplicity. It'll be added once the basic implementation
* changes in v3)
- use QIOChannel API (Stefan, Daniel)
- add bound check for malcious guests (Daniel)
- drop support PSTORE_TYPE_CONSOLE for now
2019 Jun 21
9
[libnbd PATCH v2 0/5] nbd_pread_structured
Since v1:
- rebase to applied patches
- split out support for Int in callbacks
- sort of test that callbacks work in OCaml (see comment in patch 5)
- rename API to nbd_pread_structured
- expose error as explicit parameter to callback
Eric Blake (5):
generator: Allow Int in callbacks
states: Wire in a read callback
states: Add nbd_pread_structured API
states: Add tests for
2018 Jan 05
5
[PATCH v4 0/3] virtio_net: allow hypervisor to indicate linkspeed and duplex setting
We have found it useful to be able to set the linkspeed and duplex
settings from the host-side for virtio_net. This obviates the need
for guest changes and settings for these fields, and does not require
custom ethtool commands for virtio_net.
The ability to set linkspeed and duplex is useful in various cases
as described here:
16032be virtio_net: add ethtool support for set and get of settings
2016 Jul 18
7
[RFC/PATCHSET 0/3] virtio-pstore: Implement virtio pstore device
Hello,
This patchset is a proof of concept of virtio-pstore idea [1]. It has
some rough edges and I'm not familiar with this area, so please give
me feedbacks and advices if I'm going to a wrong direction.
It started from the fact that dumping ftrace buffer at kernel
oops/panic takes too much time. Although there's a way to reduce the
size of the original data, sometimes I want to
2016 Jul 18
7
[RFC/PATCHSET 0/3] virtio-pstore: Implement virtio pstore device
Hello,
This patchset is a proof of concept of virtio-pstore idea [1]. It has
some rough edges and I'm not familiar with this area, so please give
me feedbacks and advices if I'm going to a wrong direction.
It started from the fact that dumping ftrace buffer at kernel
oops/panic takes too much time. Although there's a way to reduce the
size of the original data, sometimes I want to
2016 Mar 03
16
[RFC qemu 0/4] A PV solution for live migration optimization
The current QEMU live migration implementation mark the all the
guest's RAM pages as dirtied in the ram bulk stage, all these pages
will be processed and that takes quit a lot of CPU cycles.
>From guest's point of view, it doesn't care about the content in free
pages. We can make use of this fact and skip processing the free
pages in the ram bulk stage, it can save a lot CPU cycles
2016 Mar 03
16
[RFC qemu 0/4] A PV solution for live migration optimization
The current QEMU live migration implementation mark the all the
guest's RAM pages as dirtied in the ram bulk stage, all these pages
will be processed and that takes quit a lot of CPU cycles.
>From guest's point of view, it doesn't care about the content in free
pages. We can make use of this fact and skip processing the free
pages in the ram bulk stage, it can save a lot CPU cycles
2016 Aug 31
4
[RFC/PATCHSET 0/3] virtio: Implement virtio pstore device (v4)
Hello,
This is another iteration of the virtio-pstore work. I've addressed
all comments from Daniel Berrange on the qemu side.
* changes in v4)
- use qio_channel_file_new_path() (Daniel)
- rename to delete_old_pstore_file (Daniel)
- convert G_REMOVE_SOURCE to FALSE (Daniel)
* changes in v3)
- use QIOChannel API (Stefan, Daniel)
- add bound check for malcious guests
2016 Aug 31
4
[RFC/PATCHSET 0/3] virtio: Implement virtio pstore device (v4)
Hello,
This is another iteration of the virtio-pstore work. I've addressed
all comments from Daniel Berrange on the qemu side.
* changes in v4)
- use qio_channel_file_new_path() (Daniel)
- rename to delete_old_pstore_file (Daniel)
- convert G_REMOVE_SOURCE to FALSE (Daniel)
* changes in v3)
- use QIOChannel API (Stefan, Daniel)
- add bound check for malcious guests
2020 Feb 12
4
[nbdkit PATCH 0/3] Make ext2 a filter
I'm impressed that I was able to whip this out in just one day of
hacking. Below, I'll include a diff between the plugin and the
filter as of patch 1, if it aids review.
Eric Blake (3):
filters: Add ext2 filter
ext2: Deprecate ext2 plugin
ext2: Add mode for letting client exportname choose file from image
TODO | 5 -
configure.ac
2012 Aug 13
27
[RFC-v2 0/6] vhost-scsi: Add support for host virtualized target
From: Nicholas Bellinger <nab at linux-iscsi.org>
Hi Paolo, Stefan, & QEMU folks,
The following is the second RFC series for vhost-scsi patches against mainline
QEMU v1.1.0. The series is available from the following working branch:
git://git.kernel.org/pub/scm/virt/kvm/nab/qemu-kvm.git vhost-scsi-merge
Apologies for the delayed follow-up on this series. The changes detailed