Displaying 20 results from an estimated 20000 matches similar to: "[Patch] blktap: Remove some code duplication"
2008 Oct 06
0
[PATCH] qemu-xen: Fix open_disk for blktap disks
qemu-xen: Fix open_disk for blktap disks
If blktap drives are registered properly, qemu code is much less likely
to get confused by them. Use bdrv_new(), assign a device name and create
an entry in drives_table for them.
Signed-off-by: Kevin Wolf <kwolf@suse.de>
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
2008 Apr 22
0
[PATCH] blktap: Automatically start tapdisk-ioemu on demand
When a domain wants to use a tap:ioemu disk but has no device model,
start a tapdisk-ioemu instance as provider. Also, move the creation and
removal of communication pipes to xend so that qemu-dm doesn''t need the
unwanted SIGHUP handler anymore.
Signed-off-by: Kevin Wolf <kwolf@suse.de>
_______________________________________________
Xen-devel mailing list
2010 Jun 11
0
blk_tap: Error initialising /dev/xen/blktap - No more devices
Hello,
i am experiencing something weird on my Xen Dom0
Since a few days, i can no more install or reboot any vm using tap:aio driver
My vms complains about no mounted disks
OS:
On openSUSE 11.2 (x86_64) with xen-tools-3.4.1_19718_04-2.1.x86_64
kernel-xen-base-2.6.31.8-0.1.1.x86_64
xen-libs-3.4.1_19718_04-2.1.x86_64
kernel-xen-2.6.31.8-0.1.1.x86_64
2007 Oct 15
2
[PATCH] [IOEMU] Allow blktap to be able to be booted as systemvolume for PV-on-HVM(TAKE 3)
Hi All,
I sent the patch to make blktap work with PV-on-HVM.
I corrected the part that had been pointed out in the Xen community.
・All xvdN disk is looked like hdN.
・All tap disks are checked.(tap:aio, tap:sync, tap:vmdk, etc.)
We cannot use blktap for the volume of the system with PV-on-HVM
and are embarrassed.
Could you apply this patch? Or, please give the comment to me.
Signed-off-by:
2015 Feb 12
1
Bug#777801: blktap: ftbfs with GCC-5
Package: src:blktap
Version: 2.0.90-3
Severity: normal
Tags: sid stretch
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-5
Please keep this issue open in the bug tracker for the package it
was filed for. If a fix in another package is required, please
file a bug for the other package (or clone), and add a block in this
package. Please keep the issue open until the package can be built
2007 Oct 16
0
[PATCH][IOEMU] Fix to Allow blktap to be able to be booted as system volume for PV-on-HVM.
Hi All,
I sent the patch to allow blktap to be able to booted as system bolume for
PV-on-HVM.
However, there was a problem that hdN and xvdN were not able to be specified at
the same time.
I made the patch to correct it as follows.
- Whether hdN is defined first is checked.
- If hdN is defined, xvdN is not replaced with hdN.
Signed-off-by: Takanori Kasai <kasai.takanori@jp.fujitsu.com>
2006 Sep 19
1
Help/problems with blktap on xen-unstable
Hi
I''ve been trying to play with the new blktap support in xen-unstable.
First, an observation - blktapctrl is pinned at 100% CPU:
-----------------------------------------------------------------------------------------------------------------
top - 17:29:48 up 4 days, 2:02, 3 users, load average: 0.90, 1.01, 1.00
Tasks: 83 total, 3 running, 80 sleeping, 0 stopped, 0 zombie
2010 Mar 29
0
Interesting lockdep message coming out of blktap
I''m getting this:
blktap_validate_params: aio:/dev/vg_lilith-raid/xen-f13-64: capacity: 20971520, sector-size: 512
blktap_validate_params: aio:/dev/vg_lilith-raid/xen-f13-64: capacity: 20971520, sector-size: 512
blktap_device_create: minor 0 sectors 20971520 sector-size 512
blktap_device_create: creation of 253:0: 0
INFO: trying to register non-static key.
the code is fine but needs
2012 May 23
0
A little confusion between "tapdisk" and "tapdisk-ioemu"
Hi everyone,
as what I''ve learned form this link<http://wiki.xensource.com/xenwiki/blktap>,
i know that when i specify tap:aio I’m actually using the blktap driver and
finally using "tapdisk" to wirite to raw image file.
but the truth is even when i delete /usr/sbin/tapdisk the domU can still
boot on my machine with tap:aio protocol
after a deeper look into the scene,
2007 Mar 20
4
blktap howto
hi,
i''m trying move from file: based disk to tap:aio but things don''t work
i have centos4 dom0 with centos4 domU
xen 3.0.4-testing changeset: 13138:d401cb96d8a0 self compiled
[root@xen linux-2.6.16.38-xen]# grep XEN_BLKDEV_TAP .config
CONFIG_XEN_BLKDEV_TAP=m
config
disk = [ ''file:/var/lib/xen/test.img,hda1,w'',
2012 May 22
1
Need your help with blktap
Hello,
I have a small problem with the blktap, that when I use "tap:aio" protocol
to access my disk, the domU stop booting with following message:
[ 0.185031] PCI: Fatal: No config space access function found
[ 0.189998] Unable to read sysrq code in control/sysrq
[ 0.350220] i8042: No controller found
[ 0.452153]
2008 Sep 10
2
Bug#490409: xen-3: diff for NMU version 3.2.1-2.1
tags 490409 + patch
thanks
Hi,
The following is the diff for my xen-3 3.2.1-2.1 NMU.
It incorporates three patches from upstream and aims to
fix CVE-2008-2004 aka #490409.
It is not yet tested much, I would appreciate if interested
parties could give it a try.
I'll upload in due course.
Kind regards
T.
diff -u xen-3-3.2.1/debian/control.md5sum xen-3-3.2.1/debian/control.md5sum
---
2008 Sep 28
3
Stubdom and blktap
Recently we had a try of stubdom, whose general status is good.
One issue we found is with aio/sync blktap as backend, disk performance
is obviously slower, and there are some IDE kernel error messages (like
irq timeout) at boot time.
Another issue (not stubdom specific) comes from blktap''s support for
QCOW image which is based on a backing file. We never tried this
configure
2010 May 20
0
Bug#582364: xen-utils-3.4: blktapctrl doesn't start
Package: xen-utils-3.4
Version: 3.4.3~rc6-1
Severity: important
blktapctrl doesn't start. This means that none of the tap: disks work
(eg tap:aio).
It produces this in the log
BLKTAPCTRL[6569]: blktapctrl.c:788: blktapctrl: v1.0.0
BLKTAPCTRL[6569]: blktapctrl.c:790: Found driver: [raw image (aio)]
BLKTAPCTRL[6569]: blktapctrl.c:790: Found driver: [raw image (sync)]
2008 Mar 10
12
[RFC][PATCH] Use ioemu block drivers through blktap
When I submitted the qcow2 patch for blktap, suggestions came up that
the qemu block drivers should be used also for blktap to eliminate the
current code duplication in ioemu and blktap.
The attached patch adds support for a tap:ioemu pseudo driver. Devices
using this driver won''t use tapdisk (containing the code duplication)
any more, but will connect to the qemu-dm of the domain. In
2006 Dec 01
1
[PATCH] Ensure blktap reports I/O errors back to guest
There are a number of flaws in the blktap userspace daemon when dealing
with I/O errors.
- The backends which use AIO check the io_events.res member to determine
if an I/O error occurred. Which is good. But when calling the callback
to signal completion of the I/O, they pass the io_events.res2 member
Now this seems fine at first glance[1]
"res is the usual result of an I/O
2012 Feb 14
2
How to configure so as to use the blktap/blktap2 module in XEN
Hi,mail list members,
As needed by my test, blktap/blktap2 modules have to work after new VMs start.Maybe the line about disk in the vm creation configure file is the right position where I should be supposed to specify the function of blktap/blktap2 modules.But specifically I don''t know how to configure the disk line.Who can help me?
hxk
2015 Mar 12
2
Tapdisk processes being left behind when hvm domu's migrate/shutdown
Hi All,
I'm seeing tapdisk processes not being terminated after a HVM vm is shutdown or migrated away. I don't see this problem with linux paravirt domu's, just windows hvm ones.
xl.cfg:
name = 'nathanwin'
memory = 4096
vcpus = 2
disk = [ 'file:/mnt/gtc_disk_p1/nathanwin/drive_c,hda,w' ]
vif = [ 'mac=00:16:3D:01:03:E0,bridge=vlan208' ]
builder =
2007 Nov 09
0
tap:aio / blktap slowness
Can anyone explain to me why tap:aio sucks so badly?
We''ve got numerous CentOS 5 dom0s running file-backed domUs with tap:aio.
The moment any one of them starts doing something disk-intensive, idle CPU
in dom0 decreases, iowait increases, and disk IO for every other domU on the
system suffers. Where lies the problem, and what to do about it?
Sincerely,
Ray Barnes
2008 Mar 27
0
[PATCH] ioemu: Merge qcow2 fixes from qemu
The following two fixes by Jürgen Keil have been in qemu for a year now.
They are still missing in ioemu.
[Qemu-devel] PATCH: qcow2 image corruption
http://lists.gnu.org/archive/html/qemu-devel/2007-03/msg00773.html
[Qemu-devel] [PATCH] qcow2: release refcount table clusters of the old
table, after growing the refcount table
http://lists.gnu.org/archive/html/qemu-devel/2007-04/msg00043.html