Hi, I am running XEN 4.1 on Debian 6 and I cannot find blktapctrl process running. xend is started. I installed XEN from 4.1 source following instructions here: http://wiki.xensource.com/xenwiki/XenParavirtOps http://wiki.xensource.com/xenwiki/Xen4.0 Should there be a blktapctrl process running in this version? The problem I have encountered is that I can create a domain on a raw disk image but not on a QCOW disk backed by a base image. XENBUS timed out during the DomU boot process so I figured it was trying to communicate with blktapctrl process on Dom0 but couldn''t find it. Thanks, Jiangyan _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
--- On Mon, 6/13/11, XU, Jiangyan <dennis84225@gmail.com> wrote: From: XU, Jiangyan <dennis84225@gmail.com> Subject: [Xen-users] blktapctrl not running To: xen-users@lists.xensource.com Date: Monday, June 13, 2011, 11:59 AM Hi, I am running XEN 4.1 on Debian 6 and I cannot find blktapctrl process running. xend is started. I installed XEN from 4.1 source following instructions here:http://wiki.xensource.com/xenwiki/XenParavirtOps http://wiki.xensource.com/xenwiki/Xen4.0 Should there be a blktapctrl process running in this version? The problem I have encountered is that I can create a domain on a raw disk image but not on a QCOW disk backed by a base image. XENBUS timed out during the DomU boot process so I figured it was trying to communicate with blktapctrl process on Dom0 but couldn''t find it. Thanks,Jiangyan ------------ blktap tapdisk tapdisk2 blktapctrl the above are disabled in the linux-image-2.6.32-5-xen-* Debian kernels by design. The reason ultimately resolves to the problems with Openssl as seen by the Debian developers. If there is a reason to use all custom build, this is it. -- Mark -----Inline Attachment Follows----- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Mark, Thanks for your reply. I am aware of this issue and I compiled kernel following exactly instructions here: http://wiki.xensource.com/<http://wiki.xensource.com/xenwiki/XenParavirtOps> xenwiki/XenParavirtOps <http://wiki.xensource.com/xenwiki/XenParavirtOps> So the kernel is (source=git:// git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git, branch=xen/stable-2.6.32.x) with the CONFIG_* enabled as per the above wiki, plus CONFIG_XEN_BLKDEV_TAP=y CONFIG_XEN_BLKDEV_TAP2=y, although the CONFIG_XEN_BLKDEV_TAP2=y line got stripped out during the ''make'' process. I can see /dev/blktap-control, /dev/xen/blktap-2/control exist. On Mon, Jun 13, 2011 at 3:15 PM, Mark Pryor <tlviewer@yahoo.com> wrote:> > --- On Mon, 6/13/11, XU, Jiangyan <dennis84225@gmail.com> wrote: > > From: XU, Jiangyan <dennis84225@gmail.com> > Subject: [Xen-users] blktapctrl not running > To: xen-users@lists.xensource.com > Date: Monday, June 13, 2011, 11:59 AM > > Hi, > I am running XEN 4.1 on Debian 6 and I cannot find blktapctrl process > running. xend is started. I installed XEN from 4.1 source following > instructions here:http://wiki.xensource.com/xenwiki/XenParavirtOps > > http://wiki.xensource.com/xenwiki/Xen4.0 > Should there be a blktapctrl process running in this version? > The problem I have encountered is that I can create a domain on a raw disk > image but not on a QCOW disk backed by a base image. XENBUS timed out during > the DomU boot process so I figured it was trying to communicate with > blktapctrl process on Dom0 but couldn''t find it. > > > Thanks,Jiangyan > ------------ > > blktap > tapdisk > tapdisk2 > blktapctrl > > the above are disabled in the linux-image-2.6.32-5-xen-* Debian kernels by > design. The reason ultimately resolves to the problems with Openssl as seen > by the Debian developers. > > If there is a reason to use all custom build, this is it. > > -- > Mark > > > > -----Inline Attachment Follows----- > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
--- On Mon, 6/13/11, XU, Jiangyan <dennis84225@gmail.com> wrote: From: XU, Jiangyan <dennis84225@gmail.com> Subject: Re: [Xen-users] blktapctrl not running To: "Mark Pryor" <tlviewer@yahoo.com> Cc: xen-users@lists.xensource.com Date: Monday, June 13, 2011, 12:40 PM Hi Mark, Thanks for your reply. I am aware of this issue and I compiled kernel following exactly instructions here:http://wiki.xensource.com/xenwiki/XenParavirtOps So the kernel is (source=git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git, branch=xen/stable-2.6.32.x) with the CONFIG_* enabled as per the above wiki, plus CONFIG_XEN_BLKDEV_TAP=y CONFIG_XEN_BLKDEV_TAP2=y,although the CONFIG_XEN_BLKDEV_TAP2=y line got stripped out during the ''make'' process. I can see /dev/blktap-control, /dev/xen/blktap-2/control exist. ---------- do you start your VM with xm or xl? If you use xm, are services configured close to this? --------------- xen services ---------- sysv-rc-conf --list | grep xen xen-watchdog xencommons 0:off 1:on 2:on 3:on 4:on 5:on 6:off xend 0:off 1:off 2:on 3:on 4:on 5:on 6:off xendomains 0:off 1:off 2:on 3:on 4:on 5:on 6:off ------------------- snip ---------- tapdisk in processes disk = [ ''tap2:aio:/data2/kvm/xp.img,hda,w'' ] blktapctrl in processes (after VM launches) disk = [ ''tap:aio:/data2/kvm/xp.img,hda,w''] -- Mark On Mon, Jun 13, 2011 at 3:15 PM, Mark Pryor <tlviewer@yahoo.com> wrote: --- On Mon, 6/13/11, XU, Jiangyan <dennis84225@gmail.com> wrote: From: XU, Jiangyan <dennis84225@gmail.com> Subject: [Xen-users] blktapctrl not running To: xen-users@lists.xensource.com Date: Monday, June 13, 2011, 11:59 AM Hi, I am running XEN 4.1 on Debian 6 and I cannot find blktapctrl process running. xend is started. I installed XEN from 4.1 source following instructions here:http://wiki.xensource.com/xenwiki/XenParavirtOps http://wiki.xensource.com/xenwiki/Xen4.0 Should there be a blktapctrl process running in this version? The problem I have encountered is that I can create a domain on a raw disk image but not on a QCOW disk backed by a base image. XENBUS timed out during the DomU boot process so I figured it was trying to communicate with blktapctrl process on Dom0 but couldn''t find it. Thanks,Jiangyan ------------ blktap tapdisk tapdisk2 blktapctrl the above are disabled in the linux-image-2.6.32-5-xen-* Debian kernels by design. The reason ultimately resolves to the problems with Openssl as seen by the Debian developers. If there is a reason to use all custom build, this is it. -- Mark -----Inline Attachment Follows----- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users