Hi all,
When I try to use tap:aio configuration I get the following error message
upon executing xm create:
*Error: Failed to create device.
stdout: unrecognized child response
stderr:
Check that target "/dev/vg0/lvol0" exists and that blktap2 driver
installed
in dom0.*
This is what I find in /var/log/syslog:
*Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created /dev/xen/blktap-2/blktap2
device
Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created /dev/xen/blktap-2/tapdev2
device
Feb 23 11:37:38 xen-1 tapdisk2[3523]: new interface: ring: 252, device: 254,
minor: 2
Feb 23 11:37:38 xen-1 tapdisk2[3523]: I/O queue driver: lio
Feb 23 11:37:38 xen-1 tapdisk2[3523]: Incorrect magic in shared info.
Feb 23 11:37:38 xen-1 tapdisk2[3523]: Failed to open shared info.
Feb 23 11:37:38 xen-1 kernel: [ 1002.545721] blktap_sysfs_create: adding
attributes for dev ec6f00c0
Feb 23 11:37:38 xen-1 kernel: [ 1002.545728] blktap_control_allocate_tap:
allocated tap c1ef8800
Feb 23 11:37:38 xen-1 kernel: [ 1002.547589] tapdisk2[3523]: segfault at 10
ip b758aa00 sp bfd07dd4 error 4 in libpthread-2.7.so[b7583000+15000]
Feb 23 11:37:38 xen-1 logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/vkbd/4/0
Feb 23 11:37:38 xen-1 logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/vfb/4/0*
Here is also the corresponding part of my DomU configuration file:
*disk =
[''tap:aio:/dev/vg0/lvol0,xvda,w'',''tap:aio:/dev/vg0/swap,xvdb,w'']*
The pv_ops dom0 kernel is compiled with *CONFIG_XEN_BLKDEV_TAP=y*. Both *
lvol0* and *swap* do exist, I''ve double-checked it (namely, they work
with *
phy:* instead of *tap:aio*).
What could be wrong?
Cheers,
Darko
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Pasi Kärkkäinen
2010-Feb-23 13:01 UTC
Re: [Xen-users] BLKTAP under Debian Lenny - not working
On Tue, Feb 23, 2010 at 11:48:20AM +0100, Darko Petrovi? wrote:> Hi all, > > When I try to use tap:aio configuration I get the following error message > upon executing xm create: > Error: Failed to create device. > stdout: unrecognized child response > stderr: > Check that target "/dev/vg0/lvol0" exists and that blktap2 driver > installed in dom0. > > This is what I find in /var/log/syslog: > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created /dev/xen/blktap-2/blktap2 > device > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created /dev/xen/blktap-2/tapdev2 > device > Feb 23 11:37:38 xen-1 tapdisk2[3523]: new interface: ring: 252, device: > 254, minor: 2 > Feb 23 11:37:38 xen-1 tapdisk2[3523]: I/O queue driver: lio > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Incorrect magic in shared info. > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Failed to open shared info. > Feb 23 11:37:38 xen-1 kernel: [ 1002.545721] blktap_sysfs_create: adding > attributes for dev ec6f00c0 > Feb 23 11:37:38 xen-1 kernel: [ 1002.545728] blktap_control_allocate_tap: > allocated tap c1ef8800 > Feb 23 11:37:38 xen-1 kernel: [ 1002.547589] tapdisk2[3523]: segfault at > 10 ip b758aa00 sp bfd07dd4 error 4 in [1]libpthread-2.7.so[b7583000+15000] > Feb 23 11:37:38 xen-1 logger: /etc/xen/scripts/xen-hotplug-cleanup: > XENBUS_PATH=backend/vkbd/4/0 > Feb 23 11:37:38 xen-1 logger: /etc/xen/scripts/xen-hotplug-cleanup: > XENBUS_PATH=backend/vfb/4/0 > > Here is also the corresponding part of my DomU configuration file: > disk = [''tap:aio:/dev/vg0/lvol0,xvda,w'',''tap:aio:/dev/vg0/swap,xvdb,w''] > > The pv_ops dom0 kernel is compiled with CONFIG_XEN_BLKDEV_TAP=y. Both > lvol0 and swap do exist, I''ve double-checked it (namely, they work with > phy: instead of tap:aio). > What could be wrong? >What''s your pv_ops dom0 version? when did you check it out? Only the very recent (as of a couple of days ago) pv_ops dom0 kernels have working blktap2. -- Pasi _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Darko Petrović
2010-Feb-23 14:15 UTC
Re: [Xen-users] BLKTAP under Debian Lenny - not working
Thanks for your reply. I''ve updated the sources today (using *git pull*), and then I compiled the kernel again... so it should be the most recent 2.6.31.6 from the Jeremy''s repository. Now I tried to pull again, but it says "Already up-to-date." Meanwhile, I have also tried to compile with CONFIG_XEN_BLKDEV_TAP2=y (and CONFIG_XEN_BLKDEV_TAP=y remained), but still no result. Any ideas? Darko 2010/2/23 Pasi Kärkkäinen <pasik@iki.fi>> On Tue, Feb 23, 2010 at 11:48:20AM +0100, Darko Petrovi? wrote: > > Hi all, > > > > When I try to use tap:aio configuration I get the following error > message > > upon executing xm create: > > Error: Failed to create device. > > stdout: unrecognized child response > > stderr: > > Check that target "/dev/vg0/lvol0" exists and that blktap2 driver > > installed in dom0. > > > > This is what I find in /var/log/syslog: > > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created > /dev/xen/blktap-2/blktap2 > > device > > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created > /dev/xen/blktap-2/tapdev2 > > device > > Feb 23 11:37:38 xen-1 tapdisk2[3523]: new interface: ring: 252, > device: > > 254, minor: 2 > > Feb 23 11:37:38 xen-1 tapdisk2[3523]: I/O queue driver: lio > > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Incorrect magic in shared info. > > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Failed to open shared info. > > Feb 23 11:37:38 xen-1 kernel: [ 1002.545721] blktap_sysfs_create: > adding > > attributes for dev ec6f00c0 > > Feb 23 11:37:38 xen-1 kernel: [ 1002.545728] > blktap_control_allocate_tap: > > allocated tap c1ef8800 > > Feb 23 11:37:38 xen-1 kernel: [ 1002.547589] tapdisk2[3523]: segfault > at > > 10 ip b758aa00 sp bfd07dd4 error 4 in [1]libpthread-2.7.so > [b7583000+15000] > > Feb 23 11:37:38 xen-1 logger: /etc/xen/scripts/xen-hotplug-cleanup: > > XENBUS_PATH=backend/vkbd/4/0 > > Feb 23 11:37:38 xen-1 logger: /etc/xen/scripts/xen-hotplug-cleanup: > > XENBUS_PATH=backend/vfb/4/0 > > > > Here is also the corresponding part of my DomU configuration file: > > disk > [''tap:aio:/dev/vg0/lvol0,xvda,w'',''tap:aio:/dev/vg0/swap,xvdb,w''] > > > > The pv_ops dom0 kernel is compiled with CONFIG_XEN_BLKDEV_TAP=y. Both > > lvol0 and swap do exist, I''ve double-checked it (namely, they work > with > > phy: instead of tap:aio). > > What could be wrong? > > > > What''s your pv_ops dom0 version? when did you check it out? > Only the very recent (as of a couple of days ago) pv_ops dom0 > kernels have working blktap2. > > -- Pasi > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Darko Petrović
2010-Feb-23 14:51 UTC
Re: [Xen-users] BLKTAP under Debian Lenny - not working
It works now. Updating the hypervisor and the tools solved the problem. Darko 2010/2/23 Darko Petrović <darko.b.petrovic@gmail.com>> Thanks for your reply. I''ve updated the sources today (using *git pull*), > and then I compiled the kernel again... so it should be the most recent > 2.6.31.6 from the Jeremy''s repository. Now I tried to pull again, but it > says "Already up-to-date." Meanwhile, I have also tried to compile with > CONFIG_XEN_BLKDEV_TAP2=y (and CONFIG_XEN_BLKDEV_TAP=y remained), but still > no result. > > Any ideas? > > Darko > > 2010/2/23 Pasi Kärkkäinen <pasik@iki.fi> > >> On Tue, Feb 23, 2010 at 11:48:20AM +0100, Darko Petrovi? wrote: >> >> > Hi all, >> > >> > When I try to use tap:aio configuration I get the following error >> message >> > upon executing xm create: >> > Error: Failed to create device. >> > stdout: unrecognized child response >> > stderr: >> > Check that target "/dev/vg0/lvol0" exists and that blktap2 driver >> > installed in dom0. >> > >> > This is what I find in /var/log/syslog: >> > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created >> /dev/xen/blktap-2/blktap2 >> > device >> > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created >> /dev/xen/blktap-2/tapdev2 >> > device >> > Feb 23 11:37:38 xen-1 tapdisk2[3523]: new interface: ring: 252, >> device: >> > 254, minor: 2 >> > Feb 23 11:37:38 xen-1 tapdisk2[3523]: I/O queue driver: lio >> > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Incorrect magic in shared info. >> > Feb 23 11:37:38 xen-1 tapdisk2[3523]: Failed to open shared info. >> > Feb 23 11:37:38 xen-1 kernel: [ 1002.545721] blktap_sysfs_create: >> adding >> > attributes for dev ec6f00c0 >> > Feb 23 11:37:38 xen-1 kernel: [ 1002.545728] >> blktap_control_allocate_tap: >> > allocated tap c1ef8800 >> > Feb 23 11:37:38 xen-1 kernel: [ 1002.547589] tapdisk2[3523]: segfault >> at >> > 10 ip b758aa00 sp bfd07dd4 error 4 in [1]libpthread-2.7.so >> [b7583000+15000] >> > Feb 23 11:37:38 xen-1 logger: /etc/xen/scripts/xen-hotplug-cleanup: >> > XENBUS_PATH=backend/vkbd/4/0 >> > Feb 23 11:37:38 xen-1 logger: /etc/xen/scripts/xen-hotplug-cleanup: >> > XENBUS_PATH=backend/vfb/4/0 >> > >> > Here is also the corresponding part of my DomU configuration file: >> > disk >> [''tap:aio:/dev/vg0/lvol0,xvda,w'',''tap:aio:/dev/vg0/swap,xvdb,w''] >> > >> > The pv_ops dom0 kernel is compiled with CONFIG_XEN_BLKDEV_TAP=y. Both >> > lvol0 and swap do exist, I''ve double-checked it (namely, they work >> with >> > phy: instead of tap:aio). >> > What could be wrong? >> > >> >> What''s your pv_ops dom0 version? when did you check it out? >> Only the very recent (as of a couple of days ago) pv_ops dom0 >> kernels have working blktap2. >> >> -- Pasi >> >> >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Pasi Kärkkäinen
2010-Feb-23 19:28 UTC
Re: [Xen-users] BLKTAP under Debian Lenny - not working
On Tue, Feb 23, 2010 at 03:51:42PM +0100, Darko Petrovi? wrote:> It works now. Updating the hypervisor and the tools solved the problem. >Ok.. what version of hypervisor and tools works for you? What version didn''t work? -- Pasi> Darko > > 2010/2/23 Darko PetroviÄ* <[1]darko.b.petrovic@gmail.com> > > Thanks for your reply. I''ve updated the sources today (using git pull), > and then I compiled the kernel again... so it should be the most recent > 2.6.31.6 from the Jeremy''s repository. Now I tried to pull again, but > it says "Already up-to-date." Meanwhile, I have also tried to compile > with CONFIG_XEN_BLKDEV_TAP2=y (and CONFIG_XEN_BLKDEV_TAP=y remained), > but still no result. > > Any ideas? > > Darko > > 2010/2/23 Pasi KÀrkkÀinen <[2]pasik@iki.fi> > > On Tue, Feb 23, 2010 at 11:48:20AM +0100, Darko Petrovi? wrote: > >   Hi all, > > > >   When I try to use tap:aio configuration I get the following > error message > >   upon executing xm create: > >   Error: Failed to create device. > >     stdout: unrecognized child response > >     stderr: > >   Check that target "/dev/vg0/lvol0" exists and that blktap2 > driver > >   installed in dom0. > > > >   This is what I find in /var/log/syslog: > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created > /dev/xen/blktap-2/blktap2 > >   device > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created > /dev/xen/blktap-2/tapdev2 > >   device > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: new interface: ring: 252, > device: > >   254, minor: 2 > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: I/O queue driver: lio > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: Incorrect magic in shared > info. > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: Failed to open shared > info. > >   Feb 23 11:37:38 xen-1 kernel: [ 1002.545721] > blktap_sysfs_create: adding > >   attributes for dev ec6f00c0 > >   Feb 23 11:37:38 xen-1 kernel: [ 1002.545728] > blktap_control_allocate_tap: > >   allocated tap c1ef8800 > >   Feb 23 11:37:38 xen-1 kernel: [ 1002.547589] tapdisk2[3523]: > segfault at > >   10 ip b758aa00 sp bfd07dd4 error 4 in > [1][3]libpthread-2.7.so[b7583000+15000] > >   Feb 23 11:37:38 xen-1 logger: > /etc/xen/scripts/xen-hotplug-cleanup: > >   XENBUS_PATH=backend/vkbd/4/0 > >   Feb 23 11:37:38 xen-1 logger: > /etc/xen/scripts/xen-hotplug-cleanup: > >   XENBUS_PATH=backend/vfb/4/0 > > > >   Here is also the corresponding part of my DomU configuration > file: > >   disk > [''tap:aio:/dev/vg0/lvol0,xvda,w'',''tap:aio:/dev/vg0/swap,xvdb,w''] > > > >   The pv_ops dom0 kernel is compiled with > CONFIG_XEN_BLKDEV_TAP=y. Both > >   lvol0 and swap do exist, I''ve double-checked it (namely, they > work with > >   phy: instead of tap:aio). > >   What could be wrong? > > > > What''s your pv_ops dom0 version? when did you check it out? > Only the very recent (as of a couple of days ago) pv_ops dom0 > kernels have working blktap2. > -- Pasi > > References > > Visible links > 1. mailto:darko.b.petrovic@gmail.com > 2. mailto:pasik@iki.fi > 3. http://libpthread-2.7.so/_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Darko Petrović
2010-Feb-23 21:33 UTC
Re: [Xen-users] BLKTAP under Debian Lenny - not working
Both are from the unstable tree. It didn''t work with 4.0 RC3, but it does with 4.0 RC4. I saw that the patches that you were talking about were applied like 10 days ago, so probably they were what I need. Thanks once more for helping out. Darko 2010/2/23 Pasi Kärkkäinen <pasik@iki.fi>> On Tue, Feb 23, 2010 at 03:51:42PM +0100, Darko Petrovi? wrote: > > It works now. Updating the hypervisor and the tools solved the > problem. > > > > Ok.. what version of hypervisor and tools works for you? What version > didn''t work? > > -- Pasi > > > Darko > > > > 2010/2/23 Darko PetroviÄ* <[1]darko.b.petrovic@gmail.com> > > > > Thanks for your reply. I''ve updated the sources today (using git > pull), > > and then I compiled the kernel again... so it should be the most > recent > > 2.6.31.6 from the Jeremy''s repository. Now I tried to pull again, > but > > it says "Already up-to-date." Meanwhile, I have also tried to > compile > > with CONFIG_XEN_BLKDEV_TAP2=y (and CONFIG_XEN_BLKDEV_TAP=y > remained), > > but still no result. > > > > Any ideas? > > > > Darko > > > > 2010/2/23 Pasi KÀrkkÀinen <[2]pasik@iki.fi> > > > > On Tue, Feb 23, 2010 at 11:48:20AM +0100, Darko Petrovi? wrote: > > >   Hi all, > > > > > >   When I try to use tap:aio configuration I get the following > > error message > > >   upon executing xm create: > > >   Error: Failed to create device. > > >     stdout: unrecognized child response > > >     stderr: > > >   Check that target "/dev/vg0/lvol0" exists and that blktap2 > > driver > > >   installed in dom0. > > > > > >   This is what I find in /var/log/syslog: > > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created > > /dev/xen/blktap-2/blktap2 > > >   device > > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: Created > > /dev/xen/blktap-2/tapdev2 > > >   device > > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: new interface: ring: > 252, > > device: > > >   254, minor: 2 > > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: I/O queue driver: lio > > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: Incorrect magic in > shared > > info. > > >   Feb 23 11:37:38 xen-1 tapdisk2[3523]: Failed to open shared > > info. > > >   Feb 23 11:37:38 xen-1 kernel: [ 1002.545721] > > blktap_sysfs_create: adding > > >   attributes for dev ec6f00c0 > > >   Feb 23 11:37:38 xen-1 kernel: [ 1002.545728] > > blktap_control_allocate_tap: > > >   allocated tap c1ef8800 > > >   Feb 23 11:37:38 xen-1 kernel: [ 1002.547589] > tapdisk2[3523]: > > segfault at > > >   10 ip b758aa00 sp bfd07dd4 error 4 in > > [1][3]libpthread-2.7.so[b7583000+15000] > > >   Feb 23 11:37:38 xen-1 logger: > > /etc/xen/scripts/xen-hotplug-cleanup: > > >   XENBUS_PATH=backend/vkbd/4/0 > > >   Feb 23 11:37:38 xen-1 logger: > > /etc/xen/scripts/xen-hotplug-cleanup: > > >   XENBUS_PATH=backend/vfb/4/0 > > > > > >   Here is also the corresponding part of my DomU > configuration > > file: > > >   disk > > [''tap:aio:/dev/vg0/lvol0,xvda,w'',''tap:aio:/dev/vg0/swap,xvdb,w''] > > > > > >   The pv_ops dom0 kernel is compiled with > > CONFIG_XEN_BLKDEV_TAP=y. Both > > >   lvol0 and swap do exist, I''ve double-checked it (namely, > they > > work with > > >   phy: instead of tap:aio). > > >   What could be wrong? > > > > > > > What''s your pv_ops dom0 version? when did you check it out? > > Only the very recent (as of a couple of days ago) pv_ops dom0 > > kernels have working blktap2. > > -- Pasi > > > > References > > > > Visible links > > 1. mailto:darko.b.petrovic@gmail.com > > 2. mailto:pasik@iki.fi > > 3. http://libpthread-2.7.so/ >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users