* Re: HEADS UP: Imported Xen 4.7 and blkback changes [not found] <20160603120921.y5l362zgrhf4fdcb@mac> @ 2016-06-08 22:18 ` Marcin Cieslak [not found] ` <alpine.BSF.2.11.1606082204080.2130@z.fncre.vasb> ` (2 subsequent siblings) 3 siblings, 0 replies; 15+ messages in thread From: Marcin Cieslak @ 2016-06-08 22:18 UTC (permalink / raw) To: Roger Pau Monné; +Cc: freebsd-xen, freebsd-virt, xen-devel On Fri, 3 Jun 2016, Roger Pau Monné wrote: > Hello, > > First of all, this message is only relevant to those that use FreeBSD as > Dom0 (host), not as a DomU (guest), so don't panic. > > I've imported the latest Xen version (4.7-rc4) into the ports tree, it's > still not the final version, but it's quite close, so we better start > testing it to make sure it works fine with FreeBSD. Thank you Roger, this is excellent. Are xen-tools-devel 4.5 now? Looks confusing. I have also tried building xen-tools (4.7) without python and qemu configure reported this. Also got this: ===> Registering installation for xen-tools-4.7.0 (xen-tools-4.7.0) /usr/ports/sysutils/xen-tools/work/stage//usr/local/lib/python2.7/site-packages/xen/lowlevel/xc.so - required shared library libxenctrl.so.4.5 not found (xen-tools-4.7.0) /usr/ports/sysutils/xen-tools/work/stage//usr/local/lib/python2.7/site-packages/xen/lowlevel/xc.so - required shared library libxenguest.so.4.5 not found (xen-tools-4.7.0) /usr/ports/sysutils/xen-tools/work/stage//usr/local/lib/xen/bin/qemu-system-i386 - required shared library libxenctrl.so.4.5 not found (xen-tools-4.7.0) /usr/ports/sysutils/xen-tools/work/stage//usr/local/lib/xen/bin/qemu-system-i386 - required shared library libxenguest.so.4.5 not found Installing xen-tools-4.7.0... Adding Python manually and rebuilding seems to fix those issues. It seems to work, I only wish we've had ports from https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192012 committed... Marcin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <alpine.BSF.2.11.1606082204080.2130@z.fncre.vasb>]
* Re: HEADS UP: Imported Xen 4.7 and blkback changes - domU respawning on_crash [not found] ` <alpine.BSF.2.11.1606082204080.2130@z.fncre.vasb> @ 2016-06-08 22:35 ` Marcin Cieslak 2016-06-09 7:40 ` HEADS UP: Imported Xen 4.7 and blkback changes Roger Pau Monné ` (2 subsequent siblings) 3 siblings, 0 replies; 15+ messages in thread From: Marcin Cieslak @ 2016-06-08 22:35 UTC (permalink / raw) To: Roger Pau Monné; +Cc: freebsd-xen, freebsd-virtualization, xen-devel On Wed, 8 Jun 2016, Marcin Cieslak wrote: > On Fri, 3 Jun 2016, Roger Pau Monné wrote: > > > Hello, > > > > First of all, this message is only relevant to those that use FreeBSD as > > Dom0 (host), not as a DomU (guest), so don't panic. > > > > I've imported the latest Xen version (4.7-rc4) into the ports tree, it's > > still not the final version, but it's quite close, so we better start > > testing it to make sure it works fine with FreeBSD. One issue maybe unrelated to FreeBSD: This domain: builder = "hvm" memory = 4096 vcpus = 2 name = "Windows2016" disk = [ '/dev/zvol/zroot/windows0,raw,hda,w', '/dev/zvol/zroot/vs2013,raw,hdb,w', # '/root/win/install.iso,raw,hdc:cdrom,r' ] boot = "c" # Boot to hard disk image vnc = 2 #vnclisten = "0.0.0.0" usbdevice = 'tablet' on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'restart' acpi = 1 bios = 'ovmf' vif = [ 'bridge=bridge0,mac=00:16:3e:5d:0d:48' ] videoram=16 vga = "stdvga" crashes because I didn't have ovmf image: (d203) HVM Loader (d203) Detected Xen v4.7.0-rc (d203) Xenbus rings @0xfeffc000, event channel 1 (d203) Unknown BIOS ovmf, no ROM image found (d203) *** HVMLoader bug at hvmloader.c:229 (d203) *** HVMLoader crashed. But I seem unable to kill it with "xl destroy" - it keeps respawning again: Windows2016 211 4079 1 --p--- 0.0 Windows2016 213 4096 1 --psc- 0.0 (disappears) Windows2016 221 4096 1 --psc- 0.0 (null) 221 147 1 --psc- 0.0 ... ... I have finally managed to snatch it by issuing this a few times, after changing the "on_crash" to 'destroy': # xl config-update Windows2016 xen/windows-run.cfg WARNING: xl now has better capability to manage domain configuration, avoid using this command when possible setting dom243 configuration Marcin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: HEADS UP: Imported Xen 4.7 and blkback changes [not found] ` <alpine.BSF.2.11.1606082204080.2130@z.fncre.vasb> 2016-06-08 22:35 ` HEADS UP: Imported Xen 4.7 and blkback changes - domU respawning on_crash Marcin Cieslak @ 2016-06-09 7:40 ` Roger Pau Monné [not found] ` <alpine.BSF.2.11.1606082229190.2130@z.fncre.vasb> [not found] ` <20160609074021.uqtjio2vn7wo5h4m@mac> 3 siblings, 0 replies; 15+ messages in thread From: Roger Pau Monné @ 2016-06-09 7:40 UTC (permalink / raw) To: Marcin Cieslak; +Cc: freebsd-xen, freebsd-virt, xen-devel On Wed, Jun 08, 2016 at 10:18:09PM +0000, Marcin Cieslak wrote: > On Fri, 3 Jun 2016, Roger Pau Monné wrote: > > > Hello, > > > > First of all, this message is only relevant to those that use FreeBSD as > > Dom0 (host), not as a DomU (guest), so don't panic. > > > > I've imported the latest Xen version (4.7-rc4) into the ports tree, it's > > still not the final version, but it's quite close, so we better start > > testing it to make sure it works fine with FreeBSD. > > Thank you Roger, this is excellent. Are xen-tools-devel 4.5 now? > Looks confusing. > > I have also tried building xen-tools (4.7) without python > and qemu configure reported this. Python is required, you cannot get rid of it. > Also got this: > > ===> Registering installation for xen-tools-4.7.0 > (xen-tools-4.7.0) /usr/ports/sysutils/xen-tools/work/stage//usr/local/lib/python2.7/site-packages/xen/lowlevel/xc.so - required shared library libxenctrl.so.4.5 not found > (xen-tools-4.7.0) /usr/ports/sysutils/xen-tools/work/stage//usr/local/lib/python2.7/site-packages/xen/lowlevel/xc.so - required shared library libxenguest.so.4.5 not found > (xen-tools-4.7.0) /usr/ports/sysutils/xen-tools/work/stage//usr/local/lib/xen/bin/qemu-system-i386 - required shared library libxenctrl.so.4.5 not found > (xen-tools-4.7.0) /usr/ports/sysutils/xen-tools/work/stage//usr/local/lib/xen/bin/qemu-system-i386 - required shared library libxenguest.so.4.5 not found > Installing xen-tools-4.7.0... > > Adding Python manually and rebuilding seems to fix those issues. AFAICT, this is caused by compiling the new xen-tools-4.7 port while still having the xen-tools-4.5 port installed. Due to the ports build environment the first path searched for libraries is /usr/local/lib instead of the one passed on the command line by the Xen build system. > It seems to work, I only wish we've had ports from https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192012 committed... My plate is completely full right now, so I cannot really pick this up. However if you manage to get the ports committed I should be able to add them to the xen-tools package. Roger. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <alpine.BSF.2.11.1606082229190.2130@z.fncre.vasb>]
* Re: HEADS UP: Imported Xen 4.7 and blkback changes - domU respawning on_crash [not found] ` <alpine.BSF.2.11.1606082229190.2130@z.fncre.vasb> @ 2016-06-09 7:44 ` Roger Pau Monné 0 siblings, 0 replies; 15+ messages in thread From: Roger Pau Monné @ 2016-06-09 7:44 UTC (permalink / raw) To: Marcin Cieslak; +Cc: freebsd-xen, freebsd-virtualization, xen-devel On Wed, Jun 08, 2016 at 10:35:22PM +0000, Marcin Cieslak wrote: > On Wed, 8 Jun 2016, Marcin Cieslak wrote: > > > On Fri, 3 Jun 2016, Roger Pau Monné wrote: > > > > > Hello, > > > > > > First of all, this message is only relevant to those that use FreeBSD as > > > Dom0 (host), not as a DomU (guest), so don't panic. > > > > > > I've imported the latest Xen version (4.7-rc4) into the ports tree, it's > > > still not the final version, but it's quite close, so we better start > > > testing it to make sure it works fine with FreeBSD. > > One issue maybe unrelated to FreeBSD: > > This domain: > > builder = "hvm" > memory = 4096 > vcpus = 2 > name = "Windows2016" > disk = [ > '/dev/zvol/zroot/windows0,raw,hda,w', > '/dev/zvol/zroot/vs2013,raw,hdb,w', > # '/root/win/install.iso,raw,hdc:cdrom,r' > ] > boot = "c" # Boot to hard disk image > vnc = 2 > #vnclisten = "0.0.0.0" > usbdevice = 'tablet' > on_poweroff = 'destroy' > on_reboot = 'restart' > on_crash = 'restart' > acpi = 1 > bios = 'ovmf' > vif = [ 'bridge=bridge0,mac=00:16:3e:5d:0d:48' ] > videoram=16 > vga = "stdvga" > > crashes because I didn't have ovmf image: > > (d203) HVM Loader > (d203) Detected Xen v4.7.0-rc > (d203) Xenbus rings @0xfeffc000, event channel 1 > (d203) Unknown BIOS ovmf, no ROM image found > (d203) *** HVMLoader bug at hvmloader.c:229 > (d203) *** HVMLoader crashed. > > But I seem unable to kill it with "xl destroy" - it keeps > respawning again: > > Windows2016 211 4079 1 --p--- 0.0 > Windows2016 213 4096 1 --psc- 0.0 > (disappears) > Windows2016 221 4096 1 --psc- 0.0 > (null) 221 147 1 --psc- 0.0 > ... > ... > > I have finally managed to snatch it by issuing this a few times, after > changing the "on_crash" to 'destroy': > > # xl config-update Windows2016 xen/windows-run.cfg > WARNING: xl now has better capability to manage domain configuration, avoid using this command when possible > setting dom243 configuration The problem is that the domain crashed so early on boot that you weren't able to destroy it, and kept rebooting due to the "on_crash = 'restart'" option. IIRC I've also used the following hacky rune in order to terminate this kind of domains: "while [ 1 ]; do xl destroy <name>; done", but your solution seems better. Roger. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <20160609074021.uqtjio2vn7wo5h4m@mac>]
* Re: HEADS UP: Imported Xen 4.7 and blkback changes [not found] ` <20160609074021.uqtjio2vn7wo5h4m@mac> @ 2016-06-10 21:41 ` Marcin Cieslak [not found] ` <alpine.BSF.2.11.1606102140290.2130@z.fncre.vasb> 1 sibling, 0 replies; 15+ messages in thread From: Marcin Cieslak @ 2016-06-10 21:41 UTC (permalink / raw) To: Roger Pau Monné; +Cc: freebsd-xen, freebsd-virt, xen-devel On Thu, 9 Jun 2016, Roger Pau Monné wrote: > On Wed, Jun 08, 2016 at 10:18:09PM +0000, Marcin Cieslak wrote: > > On Fri, 3 Jun 2016, Roger Pau Monné wrote: > > > > > Hello, > > > > > > First of all, this message is only relevant to those that use FreeBSD as > > > Dom0 (host), not as a DomU (guest), so don't panic. > > > > > > I've imported the latest Xen version (4.7-rc4) into the ports tree, it's > > > still not the final version, but it's quite close, so we better start > > > testing it to make sure it works fine with FreeBSD. > > > > Thank you Roger, this is excellent. Are xen-tools-devel 4.5 now? > > Looks confusing. > > > > I have also tried building xen-tools (4.7) without python > > and qemu configure reported this. > > Python is required, you cannot get rid of it. Strange, seems USES= python in the port's Makefile didn't work for me and continued happily after. Marcin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <alpine.BSF.2.11.1606102140290.2130@z.fncre.vasb>]
* Re: HEADS UP: Imported Xen 4.7 and blkback changes [not found] ` <alpine.BSF.2.11.1606102140290.2130@z.fncre.vasb> @ 2016-06-13 9:22 ` Roger Pau Monné 0 siblings, 0 replies; 15+ messages in thread From: Roger Pau Monné @ 2016-06-13 9:22 UTC (permalink / raw) To: Marcin Cieslak; +Cc: freebsd-xen, freebsd-virt, xen-devel On Fri, Jun 10, 2016 at 09:41:04PM +0000, Marcin Cieslak wrote: > On Thu, 9 Jun 2016, Roger Pau Monné wrote: > > > On Wed, Jun 08, 2016 at 10:18:09PM +0000, Marcin Cieslak wrote: > > > On Fri, 3 Jun 2016, Roger Pau Monné wrote: > > > > > > > Hello, > > > > > > > > First of all, this message is only relevant to those that use FreeBSD as > > > > Dom0 (host), not as a DomU (guest), so don't panic. > > > > > > > > I've imported the latest Xen version (4.7-rc4) into the ports tree, it's > > > > still not the final version, but it's quite close, so we better start > > > > testing it to make sure it works fine with FreeBSD. > > > > > > Thank you Roger, this is excellent. Are xen-tools-devel 4.5 now? > > > Looks confusing. > > > > > > I have also tried building xen-tools (4.7) without python > > > and qemu configure reported this. > > > > Python is required, you cannot get rid of it. > > Strange, seems USES= python in the port's Makefile didn't work for me and > continued happily after. Have you been able to build the tools successfully? I'm afraid I cannot provide much help regarding this, since I don't know that much about the ports build system :(. Roger. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: HEADS UP: Imported Xen 4.7: no blkback [not found] <20160603120921.y5l362zgrhf4fdcb@mac> 2016-06-08 22:18 ` HEADS UP: Imported Xen 4.7 and blkback changes Marcin Cieslak [not found] ` <alpine.BSF.2.11.1606082204080.2130@z.fncre.vasb> @ 2016-06-09 0:16 ` Marcin Cieslak [not found] ` <alpine.BSF.2.11.1606090010280.2130@z.fncre.vasb> 3 siblings, 0 replies; 15+ messages in thread From: Marcin Cieslak @ 2016-06-09 0:16 UTC (permalink / raw) To: Roger Pau Monné; +Cc: freebsd-xen, freebsd-virtualization, xen-devel On Fri, 3 Jun 2016, Roger Pau Monné wrote: > One of the more relevant changes in 4.7 regarding FreeBSD is the support for > block hotplug scripts. This means that we now have the option to use > backends different than simple block or regular files, provided that someone > writes the proper hotplug scripts to attach them (I've heard there are some > iSCSI hotplug scripts around). This however requires changes in blkback, so > if you plan to use the Xen 4.7 port, please make sure that you are running a > kernel that contains revision r301269 (or any later version). The same also I am running it with r301685 and the HVM guests have some trouble with block devices. SeaBIOS does not find /dev/zvol/zroot/freebsd1,raw,xvda,w to boot FreeBSD from, after chaging to "hda" I get up to the kernel mountroot prompt (Xen block devices seem to be detected in dmesg). What used to be Windows 2016 domU with /dev/zvol/zroot/windows0,raw,hda,w ends up in the Tianocore UEFI shell. Block devices seem to be available, I can even list the fs0: partition, but no booting further possible. Marcin # more freebsd.cfg builder = "hvm" name = "FreeBSD" disk = [ '/dev/zvol/zroot/freebsd1,raw,xvda,w', '/dev/zvol/zroot/freebsd2,raw,xvdb,w' ] boot = "c" #usbdevice = 'tablet' #nographics = 1 serial = [ "file:/tmp/boot.log" ] vnc = 1 #vnclisten = '0.0.0.0' vif = ['bridge=bridge0,mac=00:02:04:08:fd:f0'] memory=2048 vcpus=1 vga = "cirrus" videoram = 16 # more windows-run.cfg builder = "hvm" memory = 4096 vcpus = 2 name = "Windows2016" disk = [ '/dev/zvol/zroot/windows0,raw,hda,w', '/dev/zvol/zroot/vs2013,raw,hdb,w', # '/root/win/install.iso,raw,hdc:cdrom,r' ] boot = "c" # Boot to hard disk image vnc = 2 #vnclisten = "0.0.0.0" usbdevice = 'tablet' on_poweroff = 'destroy' on_reboot = 'restart' #on_crash = 'restart' on_crash = 'destroy' acpi = 1 bios = 'ovmf' vif = [ 'bridge=bridge0,mac=00:16:3e:5d:0d:48' ] videoram=16 vga = "stdvga" _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <alpine.BSF.2.11.1606090010280.2130@z.fncre.vasb>]
* Re: HEADS UP: Imported Xen 4.7: no blkback [not found] ` <alpine.BSF.2.11.1606090010280.2130@z.fncre.vasb> @ 2016-06-09 8:03 ` Roger Pau Monné [not found] ` <20160609080343.44rvpda4hskiy3ge@mac> 1 sibling, 0 replies; 15+ messages in thread From: Roger Pau Monné @ 2016-06-09 8:03 UTC (permalink / raw) To: Marcin Cieslak; +Cc: freebsd-xen, freebsd-virtualization, xen-devel On Thu, Jun 09, 2016 at 12:16:59AM +0000, Marcin Cieslak wrote: > On Fri, 3 Jun 2016, Roger Pau Monné wrote: > > > One of the more relevant changes in 4.7 regarding FreeBSD is the support for > > block hotplug scripts. This means that we now have the option to use > > backends different than simple block or regular files, provided that someone > > writes the proper hotplug scripts to attach them (I've heard there are some > > iSCSI hotplug scripts around). This however requires changes in blkback, so > > if you plan to use the Xen 4.7 port, please make sure that you are running a > > kernel that contains revision r301269 (or any later version). The same also > > I am running it with r301685 and the HVM guests have some trouble with > block devices. > > SeaBIOS does not find /dev/zvol/zroot/freebsd1,raw,xvda,w to boot FreeBSD > from, after chaging to "hda" I get up to the kernel mountroot prompt > (Xen block devices seem to be detected in dmesg). Yes, this is intentional, see: https://marc.info/?l=xen-devel&m=144482080812353 Have you checked if you need to change your /etc/fstab to correctly point to the new device? Does FreeBSD correctly list the disk(s) at the mountroot prompt when issuing a "?" command? Also, can you paste the output of `xenstore-ls -fp` from Dom0 when this happens? > What used to be Windows 2016 domU with /dev/zvol/zroot/windows0,raw,hda,w > ends up in the Tianocore UEFI shell. Block devices seem to be available, > I can even list the fs0: partition, but no booting further possible. Hm, I've never used Tianocore myself, so I'm not sure what the issue could be here. Again, can you post the output of `xenstore-ls -fp` from Dom0 when this happens? At least this will show if the PV block device has been correctly attached. Roger. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <20160609080343.44rvpda4hskiy3ge@mac>]
* Re: HEADS UP: Imported Xen 4.7: no blkback [not found] ` <20160609080343.44rvpda4hskiy3ge@mac> @ 2016-06-09 9:07 ` Wei Liu 2016-06-10 21:38 ` Marcin Cieslak [not found] ` <alpine.BSF.2.11.1606102124330.2130@z.fncre.vasb> 2 siblings, 0 replies; 15+ messages in thread From: Wei Liu @ 2016-06-09 9:07 UTC (permalink / raw) To: Roger Pau Monné Cc: freebsd-xen, Wei Liu, freebsd-virtualization, Marcin Cieslak, xen-devel On Thu, Jun 09, 2016 at 10:03:43AM +0200, Roger Pau Monné wrote: > On Thu, Jun 09, 2016 at 12:16:59AM +0000, Marcin Cieslak wrote: > > On Fri, 3 Jun 2016, Roger Pau Monné wrote: > > > > > One of the more relevant changes in 4.7 regarding FreeBSD is the support for > > > block hotplug scripts. This means that we now have the option to use > > > backends different than simple block or regular files, provided that someone > > > writes the proper hotplug scripts to attach them (I've heard there are some > > > iSCSI hotplug scripts around). This however requires changes in blkback, so > > > if you plan to use the Xen 4.7 port, please make sure that you are running a > > > kernel that contains revision r301269 (or any later version). The same also > > > > I am running it with r301685 and the HVM guests have some trouble with > > block devices. > > > > SeaBIOS does not find /dev/zvol/zroot/freebsd1,raw,xvda,w to boot FreeBSD > > from, after chaging to "hda" I get up to the kernel mountroot prompt > > (Xen block devices seem to be detected in dmesg). > > Yes, this is intentional, see: > > https://marc.info/?l=xen-devel&m=144482080812353 > Note that I reverted that change yesterday. 4.7 will behave as before. Wei. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: HEADS UP: Imported Xen 4.7: no blkback [not found] ` <20160609080343.44rvpda4hskiy3ge@mac> 2016-06-09 9:07 ` Wei Liu @ 2016-06-10 21:38 ` Marcin Cieslak [not found] ` <alpine.BSF.2.11.1606102124330.2130@z.fncre.vasb> 2 siblings, 0 replies; 15+ messages in thread From: Marcin Cieslak @ 2016-06-10 21:38 UTC (permalink / raw) To: Roger Pau Monné; +Cc: freebsd-xen, freebsd-virtualization, xen-devel On Thu, 9 Jun 2016, Roger Pau Monné wrote: > On Thu, Jun 09, 2016 at 12:16:59AM +0000, Marcin Cieslak wrote: > > On Fri, 3 Jun 2016, Roger Pau Monné wrote: > > > > > One of the more relevant changes in 4.7 regarding FreeBSD is the support for > > > block hotplug scripts. This means that we now have the option to use > > > backends different than simple block or regular files, provided that someone > > > writes the proper hotplug scripts to attach them (I've heard there are some > > > iSCSI hotplug scripts around). This however requires changes in blkback, so > > > if you plan to use the Xen 4.7 port, please make sure that you are running a > > > kernel that contains revision r301269 (or any later version). The same also > > > > I am running it with r301685 and the HVM guests have some trouble with > > block devices. > > > > SeaBIOS does not find /dev/zvol/zroot/freebsd1,raw,xvda,w to boot FreeBSD > > from, after chaging to "hda" I get up to the kernel mountroot prompt > > (Xen block devices seem to be detected in dmesg). > > Yes, this is intentional, see: > > https://marc.info/?l=xen-devel&m=144482080812353 those guests worked fine with 4.5, that's why I am surprised. xbd0 and xbd1 show up in dmesg, mouting root from xbd0p2 fails, but ada0p2 seems to work. I remember that during my previous attempts ZFS ate most of my machine's memory (dom0 was too small I think) and the symptom was very similar if not identical. One thing which struck me is that I was able to fully but one Linux HVM domU. I am also toying with OpenFirmware which boots from floppy as a HVM guest. > Have you checked if you need to change your /etc/fstab to correctly point > to the new device? Does FreeBSD correctly list the disk(s) at the mountroot > prompt when issuing a "?" command? "?" does not work - it mostly causes a panic, the console is slow, but I managed to switch it to /dev/ada0p2, dmesg below: Copyright (c) 1992-2016 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 11.0-CURRENT #1 r298620: Tue Apr 26 13:21:50 UTC 2016 root@o.saper.info:/usr/obj/usr/src/sys/GENERIC amd64 FreeBSD clang version 3.8.0 (tags/RELEASE_380/final 262564) (based on LLVM 3.8.0) WARNING: WITNESS option enabled, expect reduced performance. VT(vga): text 80x25 XEN: Hypervisor version 4.7 detected. CPU: Intel(R) Xeon(R) CPU E31245 @ 3.30GHz (3300.08-MHz K8-class CPU) Origin="GenuineIntel" Id=0x206a7 Family=0x6 Model=0x2a Stepping=7 Features=0x17c3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,ACPI,MMX,FXSR,SSE,SSE2,HTT> Features2=0x9fba2203<SSE3,PCLMULQDQ,SSSE3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,HV> AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM> AMD Features2=0x1<LAHF> XSAVE Features=0x1<XSAVEOPT> Hypervisor: Origin = "XenVMMXenVMM" real memory = 2130706432 (2032 MB) avail memory = 2018213888 (1924 MB) Event timer "LAPIC" quality 400 ACPI APIC Table: <Xen HVM> WARNING: L1 data cache covers less APIC IDs than a core 0 < 1 WARNING: L2 data cache covers less APIC IDs than a core 0 < 1 WARNING: L3 data cache covers less APIC IDs than a core 0 < 1 FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs FreeBSD/SMP: 1 package(s) x 2 core(s) random: unblocking device. ioapic0: Changing APIC ID to 1 MADT: Forcing active-low polarity and level trigger for SCI ioapic0 <Version 1.1> irqs 0-47 on motherboard random: entropy device external interface kbd1 at kbdmux0 netmap: loaded module module_register_init: MOD_LOAD (vesa, 0xffffffff80f0ffb0, 0) error 19 vtvga0: <VT VGA driver> on motherboard cryptosoft0: <software crypto> on motherboard acpi0: <Xen> on motherboard acpi0: Power Button (fixed) acpi0: Sleep Button (fixed) cpu0: <ACPI CPU> on acpi0 cpu1: <ACPI CPU> on acpi0 hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0 Timecounter "HPET" frequency 62500000 Hz quality 950 attimer0: <AT timer> port 0x40-0x43 irq 0 on acpi0 Timecounter "i8254" frequency 1193182 Hz quality 0 Event timer "i8254" frequency 1193182 Hz quality 100 atrtc0: <AT realtime clock> port 0x70-0x71 irq 8 on acpi0 Event timer "RTC" frequency 32768 Hz quality 0 Timecounter "ACPI-fast" frequency 3579545 Hz quality 900 acpi_timer0: <32-bit timer at 3.579545MHz> port 0xb008-0xb00b on acpi0 pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0 pci0: <ACPI PCI bus> on pcib0 isab0: <PCI-ISA bridge> at device 1.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <Intel PIIX3 WDMA2 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xc200-0xc20f at device 1.1 on pci0 ata0: <ATA channel> at channel 0 on atapci0 ata1: <ATA channel> at channel 1 on atapci0 pci0: <bridge> at device 1.3 (no driver attached) xenpci0: <Xen Platform Device> port 0xc000-0xc0ff mem 0xf0000000-0xf0ffffff irq 24 at device 2.0 on pci0 vgapci0: <VGA-compatible display> mem 0xf1000000-0xf1ffffff,0xf2050000-0xf2050fff at device 3.0 on pci0 vgapci0: Boot video device atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] psm0: <PS/2 Mouse> irq 12 on atkbdc0 psm0: [GIANT-LOCKED] psm0: model IntelliMouse Explorer, device ID 4 fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0 fdc0: does not respond device_attach: fdc0 attach returned 6 xenpv0: <Xen PV bus> on motherboard granttable0: <Xen Grant-table Device> on xenpv0 xen_et0: <Xen PV Clock> on xenpv0 Event timer "XENTIMER" frequency 1000000000 Hz quality 950 Timecounter "XENTIMER" frequency 1000000000 Hz quality 950 xenstore0: <XenStore> on xenpv0 evtchn0: <Xen event channel user-space device> on xenpv0 privcmd0: <Xen privileged interface user-space device> on xenpv0 debug0: <Xen debug handler> on xenpv0 orm0: <ISA Option ROM> at iomem 0xed800-0xeffff on isa0 vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 fdc0: No FDOUT register! ppc0: cannot reserve I/O port range Timecounters tick every 1.000 msec xenballoon0: <Xen Balloon Device> on xenstore0 xctrl0: <Xen Control Device> on xenstore0 xs_dev0: <Xenstore user-space device> on xenstore0 xenbusb_front0: <Xen Frontend Devices> on xenstore0 xenbusb_add_device: Device device/suspend/event-channel ignored. State 6 xn0: <Virtual Network Interface> at device/vif/0 on xenbusb_front0 xbd0: 16384MB <Virtual Block Device> at device/vbd/768 on xenbusb_front0 xbd0: attaching as ada0 xbd0: features: flush, write_barrier xbd0: synchronize cache commands enabled. xn0: Ethernet address: 00:02:04:08:fd:f0 xenbusb_back0: <Xen Backend Devices> on xenstore0 xbd1: 40960MB <Virtual Block Device> at device/vbd/832 on xenbusb_front0 xbd1: attaching as ada1 xbd1: features: flush, write_barrier xbd1: synchronize cache commands enabled. xn0: backend features: feature-sg SMP: AP CPU #1 Launched! WARNING: WITNESS option enabled, expect reduced performance. Trying to mount root from ufs:/dev/xbd0p2 [rw]... mountroot: waiting for device /dev/xbd0p2... Mounting from ufs:/dev/xbd0p2 failed with error 19. Loader variables: vfs.root.mountfrom=ufs:/dev/xbd0p2 vfs.root.mountfrom.options=rw Manual root filesystem specification: <fstype>:<device> [options] Mount <device> using filesystem <fstype> and with the specified (optional) option list. eg. ufs:/dev/da0s1a zfs:tank cd9660:/dev/cd0 ro (which is equivalent to: mount -t cd9660 -o ro /dev/cd0 /) ? List valid disk boot devices . Yield 1 second (for background tasks) <empty line> Abort manual input mountroot> Trying to mount root from ufs:/dev/ada0p2 []... xn0: link state changed to DOWN xn0: link state changed to UP > Also, can you paste the output of `xenstore-ls -fp` from Dom0 when this > happens? Windows: /tool = "" (n0) /tool/xenstored = "" (n0) /vm = "" (n0) /vm/744e8146-2e7b-11e6-80cd-5404a6685907 = "" (n0,r279) /vm/744e8146-2e7b-11e6-80cd-5404a6685907/name = "Windows2016" (n0,r279) /vm/744e8146-2e7b-11e6-80cd-5404a6685907/uuid = "744e8146-2e7b-11e6-80cd-5404a6685907" (n0,r279) /vm/744e8146-2e7b-11e6-80cd-5404a6685907/rtc = "" (n0,r279) /vm/744e8146-2e7b-11e6-80cd-5404a6685907/rtc/timeoffset = "" (n0,r279) /vm/744e8146-2e7b-11e6-80cd-5404a6685907/image = "" (n0,r279) /vm/744e8146-2e7b-11e6-80cd-5404a6685907/image/ostype = "hvm" (n0,r279) /vm/744e8146-2e7b-11e6-80cd-5404a6685907/start_time = "1465501844.89" (n0,r279) /libxl = "" (n0) /libxl/279 = "" (n0) /libxl/279/dm-version = "qemu_xen" (n0) /local = "" (n0) /local/domain = "" (n0) /local/domain/0 = "" (n0) /local/domain/0/domid = "0" (n0) /local/domain/0/name = "Domain-0" (n0) /local/domain/0/device-model = "" (n0) /local/domain/0/device-model/279 = "" (n0) /local/domain/0/device-model/279/state = "running" (n0) /local/domain/0/device-model/279/physmap = "" (n0) /local/domain/0/device-model/279/physmap/10f000000 = "" (n0) /local/domain/0/device-model/279/physmap/10f000000/start_addr = "f1000000" (n0) /local/domain/0/device-model/279/physmap/10f000000/size = "1000000" (n0) /local/domain/0/device-model/279/physmap/10f000000/name = "vga.vram" (n0) /local/domain/0/backend = "" (n0) /local/domain/0/backend/vbd = "" (n0) /local/domain/0/backend/vbd/279 = "" (n0) /local/domain/0/backend/vbd/279/768 = "" (n0,r279) /local/domain/0/backend/vbd/279/768/frontend = "/local/domain/279/device/vbd/768" (n0,r279) /local/domain/0/backend/vbd/279/768/params = "/dev/zvol/zroot/windows0" (n0,r279) /local/domain/0/backend/vbd/279/768/script = "/usr/local/etc/xen/scripts/block" (n0,r279) /local/domain/0/backend/vbd/279/768/frontend-id = "279" (n0,r279) /local/domain/0/backend/vbd/279/768/online = "1" (n0,r279) /local/domain/0/backend/vbd/279/768/removable = "0" (n0,r279) /local/domain/0/backend/vbd/279/768/bootable = "1" (n0,r279) /local/domain/0/backend/vbd/279/768/state = "3" (n0,r279) /local/domain/0/backend/vbd/279/768/dev = "hda" (n0,r279) /local/domain/0/backend/vbd/279/768/type = "phy" (n0,r279) /local/domain/0/backend/vbd/279/768/mode = "w" (n0,r279) /local/domain/0/backend/vbd/279/768/device-type = "disk" (n0,r279) /local/domain/0/backend/vbd/279/768/discard-enable = "1" (n0,r279) /local/domain/0/backend/vbd/279/768/feature-barrier = "1" (n0,r279) /local/domain/0/backend/vbd/279/768/feature-flush-cache = "1" (n0,r279) /local/domain/0/backend/vbd/279/768/max-ring-page-order = "5" (n0,r279) /local/domain/0/backend/vbd/279/768/physical-device-path = "/dev/zvol/zroot/windows0" (n0,r279) /local/domain/0/backend/vbd/279/768/hotplug-status = "connected" (n0,r279) /local/domain/0/backend/vbd/279/832 = "" (n0,r279) /local/domain/0/backend/vbd/279/832/frontend = "/local/domain/279/device/vbd/832" (n0,r279) /local/domain/0/backend/vbd/279/832/params = "/dev/zvol/zroot/vs2013" (n0,r279) /local/domain/0/backend/vbd/279/832/script = "/usr/local/etc/xen/scripts/block" (n0,r279) /local/domain/0/backend/vbd/279/832/frontend-id = "279" (n0,r279) /local/domain/0/backend/vbd/279/832/online = "1" (n0,r279) /local/domain/0/backend/vbd/279/832/removable = "0" (n0,r279) /local/domain/0/backend/vbd/279/832/bootable = "1" (n0,r279) /local/domain/0/backend/vbd/279/832/state = "3" (n0,r279) /local/domain/0/backend/vbd/279/832/dev = "hdb" (n0,r279) /local/domain/0/backend/vbd/279/832/type = "phy" (n0,r279) /local/domain/0/backend/vbd/279/832/mode = "w" (n0,r279) /local/domain/0/backend/vbd/279/832/device-type = "disk" (n0,r279) /local/domain/0/backend/vbd/279/832/discard-enable = "1" (n0,r279) /local/domain/0/backend/vbd/279/832/feature-barrier = "1" (n0,r279) /local/domain/0/backend/vbd/279/832/feature-flush-cache = "1" (n0,r279) /local/domain/0/backend/vbd/279/832/max-ring-page-order = "5" (n0,r279) /local/domain/0/backend/vbd/279/832/physical-device-path = "/dev/zvol/zroot/vs2013" (n0,r279) /local/domain/0/backend/vbd/279/832/hotplug-status = "connected" (n0,r279) /local/domain/0/backend/console = "" (n0) /local/domain/0/backend/console/279 = "" (n0) /local/domain/0/backend/console/279/0 = "" (n0,r279) /local/domain/0/backend/console/279/0/frontend = "/local/domain/279/console" (n0,r279) /local/domain/0/backend/console/279/0/frontend-id = "279" (n0,r279) /local/domain/0/backend/console/279/0/online = "1" (n0,r279) /local/domain/0/backend/console/279/0/state = "1" (n0,r279) /local/domain/0/backend/console/279/0/protocol = "vt100" (n0,r279) /local/domain/0/backend/vkbd = "" (n0) /local/domain/0/backend/vkbd/279 = "" (n0) /local/domain/0/backend/vkbd/279/0 = "" (n0,r279) /local/domain/0/backend/vkbd/279/0/frontend = "/local/domain/279/device/vkbd/0" (n0,r279) /local/domain/0/backend/vkbd/279/0/frontend-id = "279" (n0,r279) /local/domain/0/backend/vkbd/279/0/online = "1" (n0,r279) /local/domain/0/backend/vkbd/279/0/state = "2" (n0,r279) /local/domain/0/backend/vkbd/279/0/feature-abs-pointer = "1" (n0,r279) /local/domain/0/backend/vkbd/279/0/hotplug-status = "connected" (n0,r279) /local/domain/0/backend/vif = "" (n0) /local/domain/0/backend/vif/279 = "" (n0) /local/domain/0/backend/vif/279/0 = "" (n0,r279) /local/domain/0/backend/vif/279/0/frontend = "/local/domain/279/device/vif/0" (n0,r279) /local/domain/0/backend/vif/279/0/frontend-id = "279" (n0,r279) /local/domain/0/backend/vif/279/0/online = "1" (n0,r279) /local/domain/0/backend/vif/279/0/state = "2" (n0,r279) /local/domain/0/backend/vif/279/0/script = "/usr/local/etc/xen/scripts/vif-bridge" (n0,r279) /local/domain/0/backend/vif/279/0/mac = "00:16:3e:5d:0d:48" (n0,r279) /local/domain/0/backend/vif/279/0/bridge = "bridge0" (n0,r279) /local/domain/0/backend/vif/279/0/handle = "0" (n0,r279) /local/domain/0/backend/vif/279/0/type = "vif_ioemu" (n0,r279) /local/domain/0/backend/vif/279/0/hotplug-status = "connected" (n0,r279) /local/domain/0/backend/vif/279/0/feature-sg = "1" (n0,r279) /local/domain/0/backend/vif/279/0/feature-gso-tcpv4 = "0" (n0,r279) /local/domain/0/backend/vif/279/0/feature-rx-copy = "1" (n0,r279) /local/domain/0/backend/vif/279/0/feature-rx-flip = "0" (n0,r279) /local/domain/279 = "" (n0,r279) /local/domain/279/vm = "/vm/744e8146-2e7b-11e6-80cd-5404a6685907" (n0,r279) /local/domain/279/name = "Windows2016" (n0,r279) /local/domain/279/cpu = "" (n0,r279) /local/domain/279/cpu/0 = "" (n0,r279) /local/domain/279/cpu/0/availability = "online" (n0,r279) /local/domain/279/cpu/1 = "" (n0,r279) /local/domain/279/cpu/1/availability = "online" (n0,r279) /local/domain/279/memory = "" (n0,r279) /local/domain/279/memory/static-max = "4194304" (n0,r279) /local/domain/279/memory/target = "4177920" (n0,r279) /local/domain/279/memory/videoram = "16384" (n0,r279) /local/domain/279/device = "" (n0,r279) /local/domain/279/device/suspend = "" (n0,r279) /local/domain/279/device/suspend/event-channel = "" (n279) /local/domain/279/device/vbd = "" (n0,r279) /local/domain/279/device/vbd/768 = "" (n279,r0) /local/domain/279/device/vbd/768/backend = "/local/domain/0/backend/vbd/279/768" (n279,r0) /local/domain/279/device/vbd/768/backend-id = "0" (n279,r0) /local/domain/279/device/vbd/768/state = "1" (n279,r0) /local/domain/279/device/vbd/768/virtual-device = "768" (n279,r0) /local/domain/279/device/vbd/768/device-type = "disk" (n279,r0) /local/domain/279/device/vbd/832 = "" (n279,r0) /local/domain/279/device/vbd/832/backend = "/local/domain/0/backend/vbd/279/832" (n279,r0) /local/domain/279/device/vbd/832/backend-id = "0" (n279,r0) /local/domain/279/device/vbd/832/state = "1" (n279,r0) /local/domain/279/device/vbd/832/virtual-device = "832" (n279,r0) /local/domain/279/device/vbd/832/device-type = "disk" (n279,r0) /local/domain/279/device/vkbd = "" (n0,r279) /local/domain/279/device/vkbd/0 = "" (n279,r0) /local/domain/279/device/vkbd/0/backend = "/local/domain/0/backend/vkbd/279/0" (n279,r0) /local/domain/279/device/vkbd/0/backend-id = "0" (n279,r0) /local/domain/279/device/vkbd/0/state = "1" (n279,r0) /local/domain/279/device/vif = "" (n0,r279) /local/domain/279/device/vif/0 = "" (n279,r0) /local/domain/279/device/vif/0/backend = "/local/domain/0/backend/vif/279/0" (n279,r0) /local/domain/279/device/vif/0/backend-id = "0" (n279,r0) /local/domain/279/device/vif/0/state = "1" (n279,r0) /local/domain/279/device/vif/0/handle = "0" (n279,r0) /local/domain/279/device/vif/0/mac = "00:16:3e:5d:0d:48" (n279,r0) /local/domain/279/control = "" (n0,r279) /local/domain/279/control/shutdown = "" (n279) /local/domain/279/control/platform-feature-multiprocessor-suspend = "1" (n0,r279) /local/domain/279/control/platform-feature-xs_reset_watches = "1" (n0,r279) /local/domain/279/hvmloader = "" (n0,r279) /local/domain/279/hvmloader/bios = "ovmf" (n0,r279) /local/domain/279/hvmloader/allow-memory-relocate = "0" (n0,r279) /local/domain/279/data = "" (n279) /local/domain/279/drivers = "" (n279) /local/domain/279/feature = "" (n279) /local/domain/279/attr = "" (n279) /local/domain/279/domid = "279" (n0,r279) /local/domain/279/store = "" (n0,r279) /local/domain/279/store/port = "1" (n0,r279) /local/domain/279/store/ring-ref = "1044476" (n0,r279) /local/domain/279/platform = "" (n0,r279) /local/domain/279/platform/acpi = "1" (n0,r279) /local/domain/279/platform/acpi_s3 = "1" (n0,r279) /local/domain/279/platform/acpi_s4 = "1" (n0,r279) /local/domain/279/console = "" (n0,r279) /local/domain/279/console/backend = "/local/domain/0/backend/console/279/0" (n0,r279) /local/domain/279/console/backend-id = "0" (n279,r0) /local/domain/279/console/limit = "1048576" (n0,r279) /local/domain/279/console/type = "xenconsoled" (n0,r279) /local/domain/279/console/output = "pty" (n0,r279) /local/domain/279/console/tty = "/dev/pts/1" (n0,r279) /local/domain/279/console/port = "2" (n0,r279) /local/domain/279/console/ring-ref = "1044479" (n0,r279) /local/domain/279/console/vnc-listen = "127.0.0.1" (n0,r279) /local/domain/279/console/vnc-port = "5900" (n0,r279) /local/domain/279/image = "" (n0,r279) /local/domain/279/image/device-model-pid = "78745" (n0,r279) FreeBSD: /tool = "" (n0) /tool/xenstored = "" (n0) /vm = "" (n0) /vm/faefcbb0-2e7b-11e6-80cd-5404a6685907 = "" (n0,r281) /vm/faefcbb0-2e7b-11e6-80cd-5404a6685907/name = "FreeBSD" (n0,r281) /vm/faefcbb0-2e7b-11e6-80cd-5404a6685907/uuid = "faefcbb0-2e7b-11e6-80cd-5404a6685907" (n0,r281) /vm/faefcbb0-2e7b-11e6-80cd-5404a6685907/rtc = "" (n0,r281) /vm/faefcbb0-2e7b-11e6-80cd-5404a6685907/rtc/timeoffset = "" (n0,r281) /vm/faefcbb0-2e7b-11e6-80cd-5404a6685907/image = "" (n0,r281) /vm/faefcbb0-2e7b-11e6-80cd-5404a6685907/image/ostype = "hvm" (n0,r281) /vm/faefcbb0-2e7b-11e6-80cd-5404a6685907/start_time = "1465502070.75" (n0,r281) /vm/7bbb396a-2f43-11e6-8abe-5404a6685907 = "" (n0,r11) /vm/7bbb396a-2f43-11e6-8abe-5404a6685907/name = "FreeBSD" (n0,r11) /vm/7bbb396a-2f43-11e6-8abe-5404a6685907/uuid = "7bbb396a-2f43-11e6-8abe-5404a6685907" (n0,r11) /vm/7bbb396a-2f43-11e6-8abe-5404a6685907/rtc = "" (n0,r11) /vm/7bbb396a-2f43-11e6-8abe-5404a6685907/rtc/timeoffset = "" (n0,r11) /vm/7bbb396a-2f43-11e6-8abe-5404a6685907/image = "" (n0,r11) /vm/7bbb396a-2f43-11e6-8abe-5404a6685907/image/ostype = "hvm" (n0,r11) /vm/7bbb396a-2f43-11e6-8abe-5404a6685907/start_time = "1465587756.69" (n0,r11) /libxl = "" (n0) /libxl/281 = "" (n0) /libxl/281/dm-version = "qemu_xen" (n0) /libxl/11 = "" (n0) /libxl/11/dm-version = "qemu_xen" (n0) /local = "" (n0) /local/domain = "" (n0) /local/domain/0 = "" (n0) /local/domain/0/domid = "0" (n0) /local/domain/0/name = "Domain-0" (n0) /local/domain/0/device-model = "" (n0) /local/domain/0/device-model/11 = "" (n0) /local/domain/0/device-model/11/state = "running" (n0) /local/domain/0/device-model/11/physmap = "" (n0) /local/domain/0/device-model/11/physmap/7f000000 = "" (n0) /local/domain/0/device-model/11/physmap/7f000000/start_addr = "f1000000" (n0) /local/domain/0/device-model/11/physmap/7f000000/size = "1000000" (n0) /local/domain/0/device-model/11/physmap/7f000000/name = "vga.vram" (n0) /local/domain/0/backend = "" (n0) /local/domain/0/backend/vbd = "" (n0) /local/domain/0/backend/vbd/11 = "" (n0) /local/domain/0/backend/vbd/11/768 = "" (n0,r11) /local/domain/0/backend/vbd/11/768/frontend = "/local/domain/11/device/vbd/768" (n0,r11) /local/domain/0/backend/vbd/11/768/params = "/dev/zvol/zroot/freebsd1" (n0,r11) /local/domain/0/backend/vbd/11/768/script = "/usr/local/etc/xen/scripts/block" (n0,r11) /local/domain/0/backend/vbd/11/768/frontend-id = "11" (n0,r11) /local/domain/0/backend/vbd/11/768/online = "1" (n0,r11) /local/domain/0/backend/vbd/11/768/removable = "0" (n0,r11) /local/domain/0/backend/vbd/11/768/bootable = "1" (n0,r11) /local/domain/0/backend/vbd/11/768/state = "4" (n0,r11) /local/domain/0/backend/vbd/11/768/dev = "hda" (n0,r11) /local/domain/0/backend/vbd/11/768/type = "phy" (n0,r11) /local/domain/0/backend/vbd/11/768/mode = "w" (n0,r11) /local/domain/0/backend/vbd/11/768/device-type = "disk" (n0,r11) /local/domain/0/backend/vbd/11/768/discard-enable = "1" (n0,r11) /local/domain/0/backend/vbd/11/768/feature-barrier = "1" (n0,r11) /local/domain/0/backend/vbd/11/768/feature-flush-cache = "1" (n0,r11) /local/domain/0/backend/vbd/11/768/max-ring-page-order = "5" (n0,r11) /local/domain/0/backend/vbd/11/768/physical-device-path = "/dev/zvol/zroot/freebsd1" (n0,r11) /local/domain/0/backend/vbd/11/768/hotplug-status = "connected" (n0,r11) /local/domain/0/backend/vbd/11/768/sectors = "33554432" (n0,r11) /local/domain/0/backend/vbd/11/768/info = "0" (n0,r11) /local/domain/0/backend/vbd/11/768/sector-size = "512" (n0,r11) /local/domain/0/backend/vbd/11/832 = "" (n0,r11) /local/domain/0/backend/vbd/11/832/frontend = "/local/domain/11/device/vbd/832" (n0,r11) /local/domain/0/backend/vbd/11/832/params = "/dev/zvol/zroot/freebsd2" (n0,r11) /local/domain/0/backend/vbd/11/832/script = "/usr/local/etc/xen/scripts/block" (n0,r11) /local/domain/0/backend/vbd/11/832/frontend-id = "11" (n0,r11) /local/domain/0/backend/vbd/11/832/online = "1" (n0,r11) /local/domain/0/backend/vbd/11/832/removable = "0" (n0,r11) /local/domain/0/backend/vbd/11/832/bootable = "1" (n0,r11) /local/domain/0/backend/vbd/11/832/state = "4" (n0,r11) /local/domain/0/backend/vbd/11/832/dev = "hdb" (n0,r11) /local/domain/0/backend/vbd/11/832/type = "phy" (n0,r11) /local/domain/0/backend/vbd/11/832/mode = "w" (n0,r11) /local/domain/0/backend/vbd/11/832/device-type = "disk" (n0,r11) /local/domain/0/backend/vbd/11/832/discard-enable = "1" (n0,r11) /local/domain/0/backend/vbd/11/832/feature-barrier = "1" (n0,r11) /local/domain/0/backend/vbd/11/832/feature-flush-cache = "1" (n0,r11) /local/domain/0/backend/vbd/11/832/max-ring-page-order = "5" (n0,r11) /local/domain/0/backend/vbd/11/832/physical-device-path = "/dev/zvol/zroot/freebsd2" (n0,r11) /local/domain/0/backend/vbd/11/832/hotplug-status = "connected" (n0,r11) /local/domain/0/backend/vbd/11/832/sectors = "83886080" (n0,r11) /local/domain/0/backend/vbd/11/832/info = "0" (n0,r11) /local/domain/0/backend/vbd/11/832/sector-size = "512" (n0,r11) /local/domain/0/backend/console = "" (n0) /local/domain/0/backend/console/11 = "" (n0) /local/domain/0/backend/console/11/0 = "" (n0,r11) /local/domain/0/backend/console/11/0/frontend = "/local/domain/11/console" (n0,r11) /local/domain/0/backend/console/11/0/frontend-id = "11" (n0,r11) /local/domain/0/backend/console/11/0/online = "1" (n0,r11) /local/domain/0/backend/console/11/0/state = "1" (n0,r11) /local/domain/0/backend/console/11/0/protocol = "vt100" (n0,r11) /local/domain/0/backend/vkbd = "" (n0) /local/domain/0/backend/vkbd/11 = "" (n0) /local/domain/0/backend/vkbd/11/0 = "" (n0,r11) /local/domain/0/backend/vkbd/11/0/frontend = "/local/domain/11/device/vkbd/0" (n0,r11) /local/domain/0/backend/vkbd/11/0/frontend-id = "11" (n0,r11) /local/domain/0/backend/vkbd/11/0/online = "1" (n0,r11) /local/domain/0/backend/vkbd/11/0/state = "2" (n0,r11) /local/domain/0/backend/vkbd/11/0/feature-abs-pointer = "1" (n0,r11) /local/domain/0/backend/vkbd/11/0/hotplug-status = "connected" (n0,r11) /local/domain/0/backend/vif = "" (n0) /local/domain/0/backend/vif/11 = "" (n0) /local/domain/0/backend/vif/11/0 = "" (n0,r11) /local/domain/0/backend/vif/11/0/frontend = "/local/domain/11/device/vif/0" (n0,r11) /local/domain/0/backend/vif/11/0/frontend-id = "11" (n0,r11) /local/domain/0/backend/vif/11/0/online = "1" (n0,r11) /local/domain/0/backend/vif/11/0/state = "4" (n0,r11) /local/domain/0/backend/vif/11/0/script = "/usr/local/etc/xen/scripts/vif-bridge" (n0,r11) /local/domain/0/backend/vif/11/0/mac = "00:02:04:08:fd:f0" (n0,r11) /local/domain/0/backend/vif/11/0/bridge = "bridge0" (n0,r11) /local/domain/0/backend/vif/11/0/handle = "0" (n0,r11) /local/domain/0/backend/vif/11/0/type = "vif_ioemu" (n0,r11) /local/domain/0/backend/vif/11/0/hotplug-status = "connected" (n0,r11) /local/domain/0/backend/vif/11/0/feature-sg = "1" (n0,r11) /local/domain/0/backend/vif/11/0/feature-gso-tcpv4 = "0" (n0,r11) /local/domain/0/backend/vif/11/0/feature-rx-copy = "1" (n0,r11) /local/domain/0/backend/vif/11/0/feature-rx-flip = "0" (n0,r11) /local/domain/11 = "" (n0,r11) /local/domain/11/vm = "/vm/7bbb396a-2f43-11e6-8abe-5404a6685907" (n0,r11) /local/domain/11/name = "FreeBSD" (n0,r11) /local/domain/11/cpu = "" (n0,r11) /local/domain/11/cpu/0 = "" (n0,r11) /local/domain/11/cpu/0/availability = "online" (n0,r11) /local/domain/11/cpu/1 = "" (n0,r11) /local/domain/11/cpu/1/availability = "online" (n0,r11) /local/domain/11/memory = "" (n0,r11) /local/domain/11/memory/static-max = "2097152" (n0,r11) /local/domain/11/memory/target = "2080768" (n0,r11) /local/domain/11/memory/videoram = "16384" (n0,r11) /local/domain/11/device = "" (n0,r11) /local/domain/11/device/suspend = "" (n0,r11) /local/domain/11/device/suspend/event-channel = "" (n11) /local/domain/11/device/vbd = "" (n0,r11) /local/domain/11/device/vbd/768 = "" (n11,r0) /local/domain/11/device/vbd/768/backend = "/local/domain/0/backend/vbd/11/768" (n11,r0) /local/domain/11/device/vbd/768/backend-id = "0" (n11,r0) /local/domain/11/device/vbd/768/state = "4" (n11,r0) /local/domain/11/device/vbd/768/virtual-device = "768" (n11,r0) /local/domain/11/device/vbd/768/device-type = "disk" (n11,r0) /local/domain/11/device/vbd/768/ring-ref0 = "8" (n11,r0) /local/domain/11/device/vbd/768/ring-ref1 = "9" (n11,r0) /local/domain/11/device/vbd/768/ring-ref2 = "10" (n11,r0) /local/domain/11/device/vbd/768/ring-ref3 = "11" (n11,r0) /local/domain/11/device/vbd/768/ring-ref4 = "12" (n11,r0) /local/domain/11/device/vbd/768/ring-ref5 = "13" (n11,r0) /local/domain/11/device/vbd/768/ring-ref6 = "14" (n11,r0) /local/domain/11/device/vbd/768/ring-ref7 = "15" (n11,r0) /local/domain/11/device/vbd/768/ring-ref8 = "16" (n11,r0) /local/domain/11/device/vbd/768/ring-ref9 = "17" (n11,r0) /local/domain/11/device/vbd/768/ring-ref10 = "18" (n11,r0) /local/domain/11/device/vbd/768/ring-ref11 = "19" (n11,r0) /local/domain/11/device/vbd/768/ring-ref12 = "20" (n11,r0) /local/domain/11/device/vbd/768/ring-ref13 = "21" (n11,r0) /local/domain/11/device/vbd/768/ring-ref14 = "22" (n11,r0) /local/domain/11/device/vbd/768/ring-ref15 = "23" (n11,r0) /local/domain/11/device/vbd/768/ring-ref16 = "24" (n11,r0) /local/domain/11/device/vbd/768/ring-ref17 = "25" (n11,r0) /local/domain/11/device/vbd/768/ring-ref18 = "26" (n11,r0) /local/domain/11/device/vbd/768/ring-ref19 = "27" (n11,r0) /local/domain/11/device/vbd/768/ring-ref20 = "28" (n11,r0) /local/domain/11/device/vbd/768/ring-ref21 = "29" (n11,r0) /local/domain/11/device/vbd/768/ring-ref22 = "30" (n11,r0) /local/domain/11/device/vbd/768/ring-ref23 = "31" (n11,r0) /local/domain/11/device/vbd/768/ring-ref24 = "32" (n11,r0) /local/domain/11/device/vbd/768/ring-ref25 = "33" (n11,r0) /local/domain/11/device/vbd/768/ring-ref26 = "34" (n11,r0) /local/domain/11/device/vbd/768/ring-ref27 = "35" (n11,r0) /local/domain/11/device/vbd/768/ring-ref28 = "36" (n11,r0) /local/domain/11/device/vbd/768/ring-ref29 = "37" (n11,r0) /local/domain/11/device/vbd/768/ring-ref30 = "38" (n11,r0) /local/domain/11/device/vbd/768/ring-ref31 = "39" (n11,r0) /local/domain/11/device/vbd/768/num-ring-pages = "32" (n11,r0) /local/domain/11/device/vbd/768/ring-page-order = "5" (n11,r0) /local/domain/11/device/vbd/768/event-channel = "10" (n11,r0) /local/domain/11/device/vbd/768/protocol = "x86_64-abi" (n11,r0) /local/domain/11/device/vbd/832 = "" (n11,r0) /local/domain/11/device/vbd/832/backend = "/local/domain/0/backend/vbd/11/832" (n11,r0) /local/domain/11/device/vbd/832/backend-id = "0" (n11,r0) /local/domain/11/device/vbd/832/state = "4" (n11,r0) /local/domain/11/device/vbd/832/virtual-device = "832" (n11,r0) /local/domain/11/device/vbd/832/device-type = "disk" (n11,r0) /local/domain/11/device/vbd/832/ring-ref0 = "40" (n11,r0) /local/domain/11/device/vbd/832/ring-ref1 = "41" (n11,r0) /local/domain/11/device/vbd/832/ring-ref2 = "42" (n11,r0) /local/domain/11/device/vbd/832/ring-ref3 = "43" (n11,r0) /local/domain/11/device/vbd/832/ring-ref4 = "44" (n11,r0) /local/domain/11/device/vbd/832/ring-ref5 = "45" (n11,r0) /local/domain/11/device/vbd/832/ring-ref6 = "46" (n11,r0) /local/domain/11/device/vbd/832/ring-ref7 = "47" (n11,r0) /local/domain/11/device/vbd/832/ring-ref8 = "48" (n11,r0) /local/domain/11/device/vbd/832/ring-ref9 = "49" (n11,r0) /local/domain/11/device/vbd/832/ring-ref10 = "50" (n11,r0) /local/domain/11/device/vbd/832/ring-ref11 = "51" (n11,r0) /local/domain/11/device/vbd/832/ring-ref12 = "52" (n11,r0) /local/domain/11/device/vbd/832/ring-ref13 = "53" (n11,r0) /local/domain/11/device/vbd/832/ring-ref14 = "54" (n11,r0) /local/domain/11/device/vbd/832/ring-ref15 = "55" (n11,r0) /local/domain/11/device/vbd/832/ring-ref16 = "56" (n11,r0) /local/domain/11/device/vbd/832/ring-ref17 = "57" (n11,r0) /local/domain/11/device/vbd/832/ring-ref18 = "58" (n11,r0) /local/domain/11/device/vbd/832/ring-ref19 = "59" (n11,r0) /local/domain/11/device/vbd/832/ring-ref20 = "60" (n11,r0) /local/domain/11/device/vbd/832/ring-ref21 = "61" (n11,r0) /local/domain/11/device/vbd/832/ring-ref22 = "62" (n11,r0) /local/domain/11/device/vbd/832/ring-ref23 = "63" (n11,r0) /local/domain/11/device/vbd/832/ring-ref24 = "64" (n11,r0) /local/domain/11/device/vbd/832/ring-ref25 = "65" (n11,r0) /local/domain/11/device/vbd/832/ring-ref26 = "66" (n11,r0) /local/domain/11/device/vbd/832/ring-ref27 = "67" (n11,r0) /local/domain/11/device/vbd/832/ring-ref28 = "68" (n11,r0) /local/domain/11/device/vbd/832/ring-ref29 = "69" (n11,r0) /local/domain/11/device/vbd/832/ring-ref30 = "70" (n11,r0) /local/domain/11/device/vbd/832/ring-ref31 = "71" (n11,r0) /local/domain/11/device/vbd/832/num-ring-pages = "32" (n11,r0) /local/domain/11/device/vbd/832/ring-page-order = "5" (n11,r0) /local/domain/11/device/vbd/832/event-channel = "11" (n11,r0) /local/domain/11/device/vbd/832/protocol = "x86_64-abi" (n11,r0) /local/domain/11/device/vkbd = "" (n0,r11) /local/domain/11/device/vkbd/0 = "" (n11,r0) /local/domain/11/device/vkbd/0/backend = "/local/domain/0/backend/vkbd/11/0" (n11,r0) /local/domain/11/device/vkbd/0/backend-id = "0" (n11,r0) /local/domain/11/device/vkbd/0/state = "1" (n11,r0) /local/domain/11/device/vif = "" (n0,r11) /local/domain/11/device/vif/0 = "" (n11,r0) /local/domain/11/device/vif/0/backend = "/local/domain/0/backend/vif/11/0" (n11,r0) /local/domain/11/device/vif/0/backend-id = "0" (n11,r0) /local/domain/11/device/vif/0/state = "4" (n11,r0) /local/domain/11/device/vif/0/handle = "0" (n11,r0) /local/domain/11/device/vif/0/mac = "00:02:04:08:fd:f0" (n11,r0) /local/domain/11/device/vif/0/tx-ring-ref = "768" (n11,r0) /local/domain/11/device/vif/0/rx-ring-ref = "329" (n11,r0) /local/domain/11/device/vif/0/event-channel = "12" (n11,r0) /local/domain/11/device/vif/0/request-rx-copy = "1" (n11,r0) /local/domain/11/device/vif/0/feature-rx-notify = "1" (n11,r0) /local/domain/11/device/vif/0/feature-sg = "1" (n11,r0) /local/domain/11/device/vif/0/feature-gso-tcpv4 = "1" (n11,r0) /local/domain/11/control = "" (n0,r11) /local/domain/11/control/shutdown = "" (n11) /local/domain/11/control/platform-feature-multiprocessor-suspend = "1" (n0,r11) /local/domain/11/control/platform-feature-xs_reset_watches = "1" (n0,r11) /local/domain/11/hvmloader = "" (n0,r11) /local/domain/11/hvmloader/bios = "seabios" (n0,r11) /local/domain/11/hvmloader/allow-memory-relocate = "0" (n0,r11) /local/domain/11/data = "" (n11) /local/domain/11/drivers = "" (n11) /local/domain/11/feature = "" (n11) /local/domain/11/attr = "" (n11) /local/domain/11/domid = "11" (n0,r11) /local/domain/11/store = "" (n0,r11) /local/domain/11/store/port = "1" (n0,r11) /local/domain/11/store/ring-ref = "1044476" (n0,r11) /local/domain/11/platform = "" (n0,r11) /local/domain/11/platform/acpi = "1" (n0,r11) /local/domain/11/platform/acpi_s3 = "1" (n0,r11) /local/domain/11/platform/acpi_s4 = "1" (n0,r11) /local/domain/11/console = "" (n0,r11) /local/domain/11/console/backend = "/local/domain/0/backend/console/11/0" (n0,r11) /local/domain/11/console/backend-id = "0" (n11,r0) /local/domain/11/console/limit = "1048576" (n0,r11) /local/domain/11/console/type = "xenconsoled" (n0,r11) /local/domain/11/console/output = "pty" (n0,r11) /local/domain/11/console/tty = "/dev/pts/1" (n0,r11) /local/domain/11/console/port = "2" (n0,r11) /local/domain/11/console/ring-ref = "1044479" (n0,r11) /local/domain/11/console/vnc-listen = "127.0.0.1" (n0,r11) /local/domain/11/console/vnc-port = "5900" (n0,r11) /local/domain/11/image = "" (n0,r11) /local/domain/11/image/device-model-pid = "6311" (n0,r11) > > What used to be Windows 2016 domU with /dev/zvol/zroot/windows0,raw,hda,w > > ends up in the Tianocore UEFI shell. Block devices seem to be available, > > I can even list the fs0: partition, but no booting further possible. > > Hm, I've never used Tianocore myself, so I'm not sure what the issue could > be here. Again, can you post the output of `xenstore-ls -fp` from Dom0 when > this happens? At least this will show if the PV block device has been > correctly attached. See above. How do I rollback to 4.5.2, do I need to downgrade the FreeBSD kernel as well? Marcin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <alpine.BSF.2.11.1606102124330.2130@z.fncre.vasb>]
* Re: HEADS UP: Imported Xen 4.7: no blkback [not found] ` <alpine.BSF.2.11.1606102124330.2130@z.fncre.vasb> @ 2016-06-13 9:10 ` Roger Pau Monné [not found] ` <20160613091003.cejnbuqepp25zanc@mac> 1 sibling, 0 replies; 15+ messages in thread From: Roger Pau Monné @ 2016-06-13 9:10 UTC (permalink / raw) To: Marcin Cieslak; +Cc: freebsd-xen, freebsd-virtualization, xen-devel On Fri, Jun 10, 2016 at 09:38:59PM +0000, Marcin Cieslak wrote: > On Thu, 9 Jun 2016, Roger Pau Monné wrote: > > > On Thu, Jun 09, 2016 at 12:16:59AM +0000, Marcin Cieslak wrote: > > > On Fri, 3 Jun 2016, Roger Pau Monné wrote: > > > > > > > One of the more relevant changes in 4.7 regarding FreeBSD is the support for > > > > block hotplug scripts. This means that we now have the option to use > > > > backends different than simple block or regular files, provided that someone > > > > writes the proper hotplug scripts to attach them (I've heard there are some > > > > iSCSI hotplug scripts around). This however requires changes in blkback, so > > > > if you plan to use the Xen 4.7 port, please make sure that you are running a > > > > kernel that contains revision r301269 (or any later version). The same also > > > > > > I am running it with r301685 and the HVM guests have some trouble with > > > block devices. > > > > > > SeaBIOS does not find /dev/zvol/zroot/freebsd1,raw,xvda,w to boot FreeBSD > > > from, after chaging to "hda" I get up to the kernel mountroot prompt > > > (Xen block devices seem to be detected in dmesg). > > > > Yes, this is intentional, see: > > > > https://marc.info/?l=xen-devel&m=144482080812353 > > those guests worked fine with 4.5, that's why I am surprised. > > xbd0 and xbd1 show up in dmesg, mouting root from xbd0p2 fails, but > ada0p2 seems to work. > > I remember that during my previous attempts ZFS ate most of > my machine's memory (dom0 was too small I think) and the > symptom was very similar if not identical. > > One thing which struck me is that I was able to fully but > one Linux HVM domU. I am also toying with OpenFirmware > which boots from floppy as a HVM guest. > > > Have you checked if you need to change your /etc/fstab to correctly point > > to the new device? Does FreeBSD correctly list the disk(s) at the mountroot > > prompt when issuing a "?" command? > > "?" does not work - it mostly causes a panic, the console is slow, but I managed > to switch it to /dev/ada0p2, dmesg below: This has now been reverted, so when I import the new RC this should be fixed and you won't need to change anything. > Copyright (c) 1992-2016 The FreeBSD Project. > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 > The Regents of the University of California. All rights reserved. > FreeBSD is a registered trademark of The FreeBSD Foundation. > FreeBSD 11.0-CURRENT #1 r298620: Tue Apr 26 13:21:50 UTC 2016 > root@o.saper.info:/usr/obj/usr/src/sys/GENERIC amd64 > FreeBSD clang version 3.8.0 (tags/RELEASE_380/final 262564) (based on LLVM 3.8.0) > WARNING: WITNESS option enabled, expect reduced performance. > VT(vga): text 80x25 > XEN: Hypervisor version 4.7 detected. > CPU: Intel(R) Xeon(R) CPU E31245 @ 3.30GHz (3300.08-MHz K8-class CPU) > Origin="GenuineIntel" Id=0x206a7 Family=0x6 Model=0x2a Stepping=7 > Features=0x17c3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,ACPI,MMX,FXSR,SSE,SSE2,HTT> > Features2=0x9fba2203<SSE3,PCLMULQDQ,SSSE3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,HV> > AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM> > AMD Features2=0x1<LAHF> > XSAVE Features=0x1<XSAVEOPT> > Hypervisor: Origin = "XenVMMXenVMM" > real memory = 2130706432 (2032 MB) > avail memory = 2018213888 (1924 MB) > Event timer "LAPIC" quality 400 > ACPI APIC Table: <Xen HVM> > WARNING: L1 data cache covers less APIC IDs than a core > 0 < 1 > WARNING: L2 data cache covers less APIC IDs than a core > 0 < 1 > WARNING: L3 data cache covers less APIC IDs than a core > 0 < 1 > FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs > FreeBSD/SMP: 1 package(s) x 2 core(s) > random: unblocking device. > ioapic0: Changing APIC ID to 1 > MADT: Forcing active-low polarity and level trigger for SCI > ioapic0 <Version 1.1> irqs 0-47 on motherboard > random: entropy device external interface > kbd1 at kbdmux0 > netmap: loaded module > module_register_init: MOD_LOAD (vesa, 0xffffffff80f0ffb0, 0) error 19 > vtvga0: <VT VGA driver> on motherboard > cryptosoft0: <software crypto> on motherboard > acpi0: <Xen> on motherboard > acpi0: Power Button (fixed) > acpi0: Sleep Button (fixed) > cpu0: <ACPI CPU> on acpi0 > cpu1: <ACPI CPU> on acpi0 > hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0 > Timecounter "HPET" frequency 62500000 Hz quality 950 > attimer0: <AT timer> port 0x40-0x43 irq 0 on acpi0 > Timecounter "i8254" frequency 1193182 Hz quality 0 > Event timer "i8254" frequency 1193182 Hz quality 100 > atrtc0: <AT realtime clock> port 0x70-0x71 irq 8 on acpi0 > Event timer "RTC" frequency 32768 Hz quality 0 > Timecounter "ACPI-fast" frequency 3579545 Hz quality 900 > acpi_timer0: <32-bit timer at 3.579545MHz> port 0xb008-0xb00b on acpi0 > pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0 > pci0: <ACPI PCI bus> on pcib0 > isab0: <PCI-ISA bridge> at device 1.0 on pci0 > isa0: <ISA bus> on isab0 > atapci0: <Intel PIIX3 WDMA2 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xc200-0xc20f at device 1.1 on pci0 > ata0: <ATA channel> at channel 0 on atapci0 > ata1: <ATA channel> at channel 1 on atapci0 > pci0: <bridge> at device 1.3 (no driver attached) > xenpci0: <Xen Platform Device> port 0xc000-0xc0ff mem 0xf0000000-0xf0ffffff irq 24 at device 2.0 on pci0 > vgapci0: <VGA-compatible display> mem 0xf1000000-0xf1ffffff,0xf2050000-0xf2050fff at device 3.0 on pci0 > vgapci0: Boot video device > atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0 > atkbd0: <AT Keyboard> irq 1 on atkbdc0 > kbd0 at atkbd0 > atkbd0: [GIANT-LOCKED] > psm0: <PS/2 Mouse> irq 12 on atkbdc0 > psm0: [GIANT-LOCKED] > psm0: model IntelliMouse Explorer, device ID 4 > fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0 > fdc0: does not respond > device_attach: fdc0 attach returned 6 > xenpv0: <Xen PV bus> on motherboard > granttable0: <Xen Grant-table Device> on xenpv0 > xen_et0: <Xen PV Clock> on xenpv0 > Event timer "XENTIMER" frequency 1000000000 Hz quality 950 > Timecounter "XENTIMER" frequency 1000000000 Hz quality 950 > xenstore0: <XenStore> on xenpv0 > evtchn0: <Xen event channel user-space device> on xenpv0 > privcmd0: <Xen privileged interface user-space device> on xenpv0 > debug0: <Xen debug handler> on xenpv0 > orm0: <ISA Option ROM> at iomem 0xed800-0xeffff on isa0 > vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 > fdc0: No FDOUT register! > ppc0: cannot reserve I/O port range > Timecounters tick every 1.000 msec > xenballoon0: <Xen Balloon Device> on xenstore0 > xctrl0: <Xen Control Device> on xenstore0 > xs_dev0: <Xenstore user-space device> on xenstore0 > xenbusb_front0: <Xen Frontend Devices> on xenstore0 > xenbusb_add_device: Device device/suspend/event-channel ignored. State 6 > xn0: <Virtual Network Interface> at device/vif/0 on xenbusb_front0 > xbd0: 16384MB <Virtual Block Device> at device/vbd/768 on xenbusb_front0 > xbd0: attaching as ada0 > xbd0: features: flush, write_barrier > xbd0: synchronize cache commands enabled. > xn0: Ethernet address: 00:02:04:08:fd:f0 > xenbusb_back0: <Xen Backend Devices> on xenstore0 > xbd1: 40960MB <Virtual Block Device> at device/vbd/832 on xenbusb_front0 > xbd1: attaching as ada1 > xbd1: features: flush, write_barrier > xbd1: synchronize cache commands enabled. > xn0: backend features: feature-sg > SMP: AP CPU #1 Launched! > WARNING: WITNESS option enabled, expect reduced performance. > Trying to mount root from ufs:/dev/xbd0p2 [rw]... > mountroot: waiting for device /dev/xbd0p2... > Mounting from ufs:/dev/xbd0p2 failed with error 19. > > Loader variables: > vfs.root.mountfrom=ufs:/dev/xbd0p2 > vfs.root.mountfrom.options=rw > > Manual root filesystem specification: > <fstype>:<device> [options] > Mount <device> using filesystem <fstype> > and with the specified (optional) option list. > > eg. ufs:/dev/da0s1a > zfs:tank > cd9660:/dev/cd0 ro > (which is equivalent to: mount -t cd9660 -o ro /dev/cd0 /) > > ? List valid disk boot devices > . Yield 1 second (for background tasks) > <empty line> Abort manual input > > mountroot> Trying to mount root from ufs:/dev/ada0p2 []... > xn0: link state changed to DOWN > xn0: link state changed to UP > > > Also, can you paste the output of `xenstore-ls -fp` from Dom0 when this > > happens? > > Windows: [...] > /local/domain/279/device/vbd/768/backend = "/local/domain/0/backend/vbd/279/768" (n279,r0) > /local/domain/279/device/vbd/768/backend-id = "0" (n279,r0) > /local/domain/279/device/vbd/768/state = "1" (n279,r0) > /local/domain/279/device/vbd/768/virtual-device = "768" (n279,r0) > /local/domain/279/device/vbd/768/device-type = "disk" (n279,r0) > /local/domain/279/device/vbd/832 = "" (n279,r0) > /local/domain/279/device/vbd/832/backend = "/local/domain/0/backend/vbd/279/832" (n279,r0) > /local/domain/279/device/vbd/832/backend-id = "0" (n279,r0) > /local/domain/279/device/vbd/832/state = "1" (n279,r0) > /local/domain/279/device/vbd/832/virtual-device = "832" (n279,r0) > /local/domain/279/device/vbd/832/device-type = "disk" (n279,r0) > /local/domain/279/device/vkbd = "" (n0,r279) > /local/domain/279/device/vkbd/0 = "" (n279,r0) > /local/domain/279/device/vkbd/0/backend = "/local/domain/0/backend/vkbd/279/0" (n279,r0) > /local/domain/279/device/vkbd/0/backend-id = "0" (n279,r0) > /local/domain/279/device/vkbd/0/state = "1" (n279,r0) > /local/domain/279/device/vif = "" (n0,r279) > /local/domain/279/device/vif/0 = "" (n279,r0) > /local/domain/279/device/vif/0/backend = "/local/domain/0/backend/vif/279/0" (n279,r0) > /local/domain/279/device/vif/0/backend-id = "0" (n279,r0) > /local/domain/279/device/vif/0/state = "1" (n279,r0) > /local/domain/279/device/vif/0/handle = "0" (n279,r0) > /local/domain/279/device/vif/0/mac = "00:16:3e:5d:0d:48" (n279,r0) It seems like Windows PV drivers don't attach at all, or are you running Windows without the PV drivers? [...] > FreeBSD: [...] > /local/domain/11/device/vbd/768/backend = "/local/domain/0/backend/vbd/11/768" (n11,r0) > /local/domain/11/device/vbd/768/backend-id = "0" (n11,r0) > /local/domain/11/device/vbd/768/state = "4" (n11,r0) > /local/domain/11/device/vbd/768/virtual-device = "768" (n11,r0) > /local/domain/11/device/vbd/768/device-type = "disk" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref0 = "8" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref1 = "9" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref2 = "10" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref3 = "11" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref4 = "12" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref5 = "13" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref6 = "14" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref7 = "15" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref8 = "16" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref9 = "17" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref10 = "18" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref11 = "19" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref12 = "20" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref13 = "21" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref14 = "22" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref15 = "23" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref16 = "24" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref17 = "25" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref18 = "26" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref19 = "27" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref20 = "28" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref21 = "29" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref22 = "30" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref23 = "31" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref24 = "32" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref25 = "33" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref26 = "34" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref27 = "35" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref28 = "36" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref29 = "37" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref30 = "38" (n11,r0) > /local/domain/11/device/vbd/768/ring-ref31 = "39" (n11,r0) > /local/domain/11/device/vbd/768/num-ring-pages = "32" (n11,r0) > /local/domain/11/device/vbd/768/ring-page-order = "5" (n11,r0) > /local/domain/11/device/vbd/768/event-channel = "10" (n11,r0) > /local/domain/11/device/vbd/768/protocol = "x86_64-abi" (n11,r0) > /local/domain/11/device/vbd/832 = "" (n11,r0) > /local/domain/11/device/vbd/832/backend = "/local/domain/0/backend/vbd/11/832" (n11,r0) > /local/domain/11/device/vbd/832/backend-id = "0" (n11,r0) > /local/domain/11/device/vbd/832/state = "4" (n11,r0) > /local/domain/11/device/vbd/832/virtual-device = "832" (n11,r0) > /local/domain/11/device/vbd/832/device-type = "disk" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref0 = "40" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref1 = "41" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref2 = "42" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref3 = "43" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref4 = "44" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref5 = "45" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref6 = "46" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref7 = "47" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref8 = "48" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref9 = "49" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref10 = "50" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref11 = "51" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref12 = "52" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref13 = "53" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref14 = "54" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref15 = "55" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref16 = "56" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref17 = "57" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref18 = "58" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref19 = "59" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref20 = "60" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref21 = "61" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref22 = "62" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref23 = "63" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref24 = "64" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref25 = "65" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref26 = "66" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref27 = "67" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref28 = "68" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref29 = "69" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref30 = "70" (n11,r0) > /local/domain/11/device/vbd/832/ring-ref31 = "71" (n11,r0) > /local/domain/11/device/vbd/832/num-ring-pages = "32" (n11,r0) > /local/domain/11/device/vbd/832/ring-page-order = "5" (n11,r0) > /local/domain/11/device/vbd/832/event-channel = "11" (n11,r0) > /local/domain/11/device/vbd/832/protocol = "x86_64-abi" (n11,r0) Everything seems fine regarding FreeBSD, PV devices have attached correctly AFAICT. [...] > /local/domain/11/console/vnc-port = "5900" (n0,r11) > /local/domain/11/image = "" (n0,r11) > /local/domain/11/image/device-model-pid = "6311" (n0,r11) > > > > What used to be Windows 2016 domU with /dev/zvol/zroot/windows0,raw,hda,w > > > ends up in the Tianocore UEFI shell. Block devices seem to be available, > > > I can even list the fs0: partition, but no booting further possible. > > > > Hm, I've never used Tianocore myself, so I'm not sure what the issue could > > be here. Again, can you post the output of `xenstore-ls -fp` from Dom0 when > > this happens? At least this will show if the PV block device has been > > correctly attached. > > See above. > > How do I rollback to 4.5.2, do I need to downgrade the FreeBSD kernel > as well? Yes, you will need to switch back to an older kernel, but I thing we should aim to solve this, or else you will get stuck with an older Xen and FreeBSD kernel. Since you mention that the console is very slow, if you run 'top' on Dom0, do you see any process (eg: qemu) taking a lot of CPU time? Also, do you see Dom0 consuming a lot of CPU if you run 'xentop'? Thanks. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <20160613091003.cejnbuqepp25zanc@mac>]
* Re: HEADS UP: Imported Xen 4.7: no blkback [not found] ` <20160613091003.cejnbuqepp25zanc@mac> @ 2016-06-13 9:44 ` Marcin Cieslak 2016-06-13 19:26 ` Marcin Cieslak [not found] ` <alpine.BSF.2.11.1606131922240.2130@z.fncre.vasb> 2 siblings, 0 replies; 15+ messages in thread From: Marcin Cieslak @ 2016-06-13 9:44 UTC (permalink / raw) To: Roger Pau Monné; +Cc: freebsd-xen, freebsd-virtualization, xen-devel On Mon, 13 Jun 2016, Roger Pau Monné wrote: > Since you mention that the console is very slow, if you run 'top' on Dom0, > do you see any process (eg: qemu) taking a lot of CPU time? > > Also, do you see Dom0 consuming a lot of CPU if you run 'xentop'? Just quick info regarding console problem at the mountroot prompt: - it was also very slow and behaving strange with older kernel and 4.5.2. - it works better when I use dual console - one can type on the serial console and see the results immediately, vidconsole is slower but thins seem to work (at least I get no panics due to "cannot mount root" anymore). - will check top Marcin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: HEADS UP: Imported Xen 4.7: no blkback [not found] ` <20160613091003.cejnbuqepp25zanc@mac> 2016-06-13 9:44 ` Marcin Cieslak @ 2016-06-13 19:26 ` Marcin Cieslak [not found] ` <alpine.BSF.2.11.1606131922240.2130@z.fncre.vasb> 2 siblings, 0 replies; 15+ messages in thread From: Marcin Cieslak @ 2016-06-13 19:26 UTC (permalink / raw) To: Roger Pau Monné; +Cc: freebsd-xen, freebsd-virtualization, xen-devel On Mon, 13 Jun 2016, Roger Pau Monné wrote: > On Fri, Jun 10, 2016 at 09:38:59PM +0000, Marcin Cieslak wrote: > > "?" does not work - it mostly causes a panic, the console is slow, but I managed > > to switch it to /dev/ada0p2, dmesg below: > > This has now been reverted, so when I import the new RC this should be fixed > and you won't need to change anything. I am confused now - so with a new Xen kernel (not yet in ports) I can use /dev/xbd* devices again? They are in fact missing - xbd driver says "attaching as ada0" and I can mount it only as /dev/ada > It seems like Windows PV drivers don't attach at all, or are you running > Windows without the PV drivers? Yes, I have. Those Windows partitions used to work properly without changes under xen 4.5. But we are too early - the problem is that even ovmf does not se them drives now, this is before Windows boots. > Since you mention that the console is very slow, if you run 'top' on Dom0, > do you see any process (eg: qemu) taking a lot of CPU time? Yes, 1635 root 7 100 0 241M 101M RUN 7:16 91.14% qemu-system-i386 or more > Also, do you see Dom0 consuming a lot of CPU if you run 'xentop'? Domain-0 -----r 446 100.0 4194300 25.2 no limit n/a 1 0 0 0 0 0 0 0 0 0 0 Marcin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <alpine.BSF.2.11.1606131922240.2130@z.fncre.vasb>]
* Re: HEADS UP: Imported Xen 4.7: no blkback [not found] ` <alpine.BSF.2.11.1606131922240.2130@z.fncre.vasb> @ 2016-06-16 15:29 ` Roger Pau Monné [not found] ` <20160616152919.3nelncwerh3nir27@mac> 1 sibling, 0 replies; 15+ messages in thread From: Roger Pau Monné @ 2016-06-16 15:29 UTC (permalink / raw) To: Marcin Cieslak; +Cc: freebsd-xen, freebsd-virtualization, xen-devel On Mon, Jun 13, 2016 at 07:26:30PM +0000, Marcin Cieslak wrote: > On Mon, 13 Jun 2016, Roger Pau Monné wrote: > > > On Fri, Jun 10, 2016 at 09:38:59PM +0000, Marcin Cieslak wrote: > > > "?" does not work - it mostly causes a panic, the console is slow, but I managed > > > to switch it to /dev/ada0p2, dmesg below: > > > > This has now been reverted, so when I import the new RC this should be fixed > > and you won't need to change anything. > > I am confused now - so with a new Xen kernel (not yet in ports) I can use > /dev/xbd* devices again? They are in fact missing - xbd driver says "attaching as ada0" > and I can mount it only as /dev/ada > > > It seems like Windows PV drivers don't attach at all, or are you running > > Windows without the PV drivers? > > Yes, I have. Those Windows partitions used to work properly without changes > under xen 4.5. But we are too early - the problem is that even ovmf > does not se them drives now, this is before Windows boots. > > > Since you mention that the console is very slow, if you run 'top' on Dom0, > > do you see any process (eg: qemu) taking a lot of CPU time? > > Yes, > > 1635 root 7 100 0 241M 101M RUN 7:16 91.14% qemu-system-i386 > > or more > > > Also, do you see Dom0 consuming a lot of CPU if you run 'xentop'? > > Domain-0 -----r 446 100.0 4194300 25.2 no limit n/a 1 0 0 0 0 0 0 0 0 0 0 > Hello, I've just imported Xen 4.7.0-rc6 into the ports tree, could you give it a try when you have a moment? FWIW, I'm going on vacations until the 4th of July, and I will be mostly AFK. Roger. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <20160616152919.3nelncwerh3nir27@mac>]
* Re: HEADS UP: Imported Xen 4.7: no blkback [not found] ` <20160616152919.3nelncwerh3nir27@mac> @ 2016-06-16 17:05 ` Marcin Cieslak 0 siblings, 0 replies; 15+ messages in thread From: Marcin Cieslak @ 2016-06-16 17:05 UTC (permalink / raw) To: Roger Pau Monné; +Cc: freebsd-xen, freebsd-virtualization, xen-devel On Thu, 16 Jun 2016, Roger Pau Monné wrote: > I've just imported Xen 4.7.0-rc6 into the ports tree, could you give it a > try when you have a moment? Yes, of course. A quick test shows no change - Windows get stuck at the UEFI shell with some block devices listed (I use "hda" for Windows), SeaBIOS cannot boot FreeBSD with "xvda". FreeBSD works with "hda", but I have to mount "/dev/ada0p1". Marcin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2016-06-16 17:05 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <20160603120921.y5l362zgrhf4fdcb@mac>
2016-06-08 22:18 ` HEADS UP: Imported Xen 4.7 and blkback changes Marcin Cieslak
[not found] ` <alpine.BSF.2.11.1606082204080.2130@z.fncre.vasb>
2016-06-08 22:35 ` HEADS UP: Imported Xen 4.7 and blkback changes - domU respawning on_crash Marcin Cieslak
2016-06-09 7:40 ` HEADS UP: Imported Xen 4.7 and blkback changes Roger Pau Monné
[not found] ` <alpine.BSF.2.11.1606082229190.2130@z.fncre.vasb>
2016-06-09 7:44 ` HEADS UP: Imported Xen 4.7 and blkback changes - domU respawning on_crash Roger Pau Monné
[not found] ` <20160609074021.uqtjio2vn7wo5h4m@mac>
2016-06-10 21:41 ` HEADS UP: Imported Xen 4.7 and blkback changes Marcin Cieslak
[not found] ` <alpine.BSF.2.11.1606102140290.2130@z.fncre.vasb>
2016-06-13 9:22 ` Roger Pau Monné
2016-06-09 0:16 ` HEADS UP: Imported Xen 4.7: no blkback Marcin Cieslak
[not found] ` <alpine.BSF.2.11.1606090010280.2130@z.fncre.vasb>
2016-06-09 8:03 ` Roger Pau Monné
[not found] ` <20160609080343.44rvpda4hskiy3ge@mac>
2016-06-09 9:07 ` Wei Liu
2016-06-10 21:38 ` Marcin Cieslak
[not found] ` <alpine.BSF.2.11.1606102124330.2130@z.fncre.vasb>
2016-06-13 9:10 ` Roger Pau Monné
[not found] ` <20160613091003.cejnbuqepp25zanc@mac>
2016-06-13 9:44 ` Marcin Cieslak
2016-06-13 19:26 ` Marcin Cieslak
[not found] ` <alpine.BSF.2.11.1606131922240.2130@z.fncre.vasb>
2016-06-16 15:29 ` Roger Pau Monné
[not found] ` <20160616152919.3nelncwerh3nir27@mac>
2016-06-16 17:05 ` Marcin Cieslak
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