similar to: Bug#586772: xen-utils-4.0: No block tap backends available

I''m getting this message (subject line) in daemon.log every time I start or restart xend. I''m not sure if this is related to the fact that I cannot boot up my Windows domU from a VHD file. The Windows domU was working fine with Xen 4.0.0 (with 2.6.32.14 dom0 kernel). When I upgraded to Xen 4.0.1-rc4 (with 2.6.32.16 dom0 kernel), I can no long boot the Windows domU from VHD. The

Hi, I''ve been testing Xen 4.0.1 with kernel 2.6.34.5 + http://gentoo-xen-kernel.googlecode.com/files/xen-patches-2.6.34-4.tar.bz2, and one of the things that I noticed immediately is there are two problems with tapdisk and this combination. First, the syntax "disk = [''tap:tapdisk:aio: ..." no longer works. When tested with HVM domU, it boots, but there was no disk

Hi, When I do the "make install-tools" with xen-4.2-unstable, there are some errors about "warn_unused_result". Is it the error in code or the error in the compiling environment? Thank you so much. gcc -O1 -fno-omit-frame-pointer -m64 -g -fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes -Wdeclaration-after-statement -D__XEN_TOOLS__ -MMD -MF .tapdisk-queue.o.d

blktap2: fix makefile of vhd for parallel make With parallel make, libvhd might not be created before link resulting in link error. This patch guarantees it. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> diff --git a/tools/blktap2/vhd/Makefile b/tools/blktap2/vhd/Makefile --- a/tools/blktap2/vhd/Makefile +++ b/tools/blktap2/vhd/Makefile @@ -12,6 +12,9 @@ CFLAGS +=

Hi, Currently i''m going through the source codes of tools/blktap2. I need to find-out where blktap2 calls 1. mem_share_nominate() 2. mem_sharing_share_page() functions to do the memory sharing on HVM guests. Can someone please provide me some guidance on blktap2 driver. Thanks, Harshan _______________________________________________ Xen-devel mailing list

--------------------------------------------------------------------------- Backport of the following patch from development: # User Ian Campbell <[hidden email]> # Date 1309968705 -3600 # Node ID e4781aedf817c5ab36f6f3077e44c43c566a2812 # Parent 700d0f03d50aa6619d313c1ff6aea7fd429d28a7 libxl: attempt to cleanup tapdisk processes on disk backend destroy. This patch properly terminates the

Hi, I''m trying to run guest pv vm on my machine running xen-unstable (xen-4.0.0-rc3.pre + linux-2.6-pvops). However, I get blktap error: " sudo xm create -c xmexample Using config file "./xmexample". Error: Failed to create device. stdout: unrecognized child response stderr: Check that target "/home/ashish/xen/hd.img" exists and that blktap2 driver

Have an interesting one here, originally found on xen 4.1.0 but just upgraded to xen 4.1.1 and it''s still here. Creating a VM with a tap2 device pointed at /dev/mapper/something, when that device doesn''t exist, causes the tapdisk2 process to go into D mode and also manages to take out any process that queries it. For example, I have /dev/mapper/nathanxenuk1 as a valid disk

> this two patches add blktap2 functionality to xen-utils. I backported > http://xenbits.xen.org/xen-unstable.hg?rev/ca2738f258f8 to remove > license issues. Has this patch been applied? Darkbasic

Hi, I''m currently trying xen 4.1.1 with the 3.0.0-rc5 (heard that it now contains the xen code to run as front or back xen domain). Everything seems to run fine, except that I am trying since a few hours to mount a .vhd file in the dom0. What I tried so far: to create a blank vhd file (this is working): host# vhd-util create -n /storage/test.vhd -s 20G Then i try to mount the file

# HG changeset patch # User Ian Campbell <ian.campbell@citrix.com> # Date 1300271932 0 # Node ID 7e326d27d899a3133479c8b7c983f660cdeda48c # Parent f35234b6636a0410a7d5eaa409e98ebe59080e4f tools: do not link against unused libraries. A fair few things under tools link against libraries which they don''t even use. Most of this appears to come from copy-and-pasting previous Makefile

For those wanting to know how to mount filesystems through blktap2 here is how you do it, as I couldn''t find it fully documented. The instructions on the blktap2 readme file are rather out of date. You can mount them under Dom0 like so. e.g. to mount a vhd file, sudo xm block-attach 0 tap2:vhd:/home/xen/xenwin7-persist.vhd xvdb w 0 Now the device should appear under /dev ls

Hello, I have been playing around with Remus on Xen 4.0.1, attempting to fail-over for an HVM domU. I''ve run into some problems that I think could be related to tapdisk2 and its interaction with how one sets up Remus disk replication in the domU config file. A few things I''ve noticed: -The tap:remus:backupHostIP:port|aio:imagePath notation does not work for me, although this

Get blktap2 running on pvops. This mainly adds eventfd support to the userland code. Based on some prior cleanup to tapdisk-queue and the server object. We had most of that in XenServer for a while, so I kept it stacked. 1. Clean up IPC and AIO init in tapdisk-server. [I think tapdisk-ipc in blktap2 is basically obsolete. Pending a later patch to remove it?] 2. Split tapdisk-queue into

The kernel patch queue used by the Xen Cloud Platform domain 0 has been published at: http://xenbits.xen.org/XCP/linux-2.6.27.pq.hg This kernel has been the recipient of extensive testing and performance optimization and is actively maintained with the latest stable drivers. There is ongoing work to merge patches which are not currently upstream into the paravirtops tree or to remove the

The kernel patch queue used by the Xen Cloud Platform domain 0 has been published at: http://xenbits.xen.org/XCP/linux-2.6.27.pq.hg This kernel has been the recipient of extensive testing and performance optimization and is actively maintained with the latest stable drivers. There is ongoing work to merge patches which are not currently upstream into the paravirtops tree or to remove the

Hello, I''m currently trying to understand some problems I had in the past with mixing look-back with blktap(2) for HV and PV domains. I''m stuck reading the source code, so I''d like to get some help from the list. Interrupt me if I got something fundamentally wrong in my understanding so far: 1. With pure-HV the domU gets an emulated IDE (or whatever) disk. The

Guys, I'm trying to compile the Xen 4.0.0 via debian/rules makefile but I got this: administrativo at sid01:~/xen/xen-4/xen-4.0.0$ make -f debian/rules build-tools ..... make -C lib all make[7]: Entering directory `/home/administrativo/xen/xen-4/xen-4.0.0/debian/build/build-tools/tools/blktap2/vhd/lib' make[7]: Nothing to be done for `all'. make[7]: Leaving directory

Changes: tools/blktap: remove unneeded pointer dereferencing in convert_dev_name_to_num tools/blktap: constify string arrays in convert_dev_name_to_num tools/blktap: fix params and physical-device parsing tools/blktap: remove unneeded pointer dereferencing from img2qcow.c tools/blktap: remove unneeded pointer dereferencing from qcow2raw.c tools/blktap2: fix build errors caused by Werror in

Package: blktap-dkms Version: 2.0.93-0.10 Severity: serious User: debian-qa at lists.debian.org Usertags: piuparts Hi, blktap-dkms fails to build a module for Linux 4.12: Selecting previously unselected package blktap-dkms. (Reading database ... 34976 files and directories currently installed.) Preparing to unpack .../blktap-dkms_2.0.93-0.10_amd64.deb ... Unpacking blktap-dkms (2.0.93-0.10) ...