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[libvirt] Improve the reliability of pty path parsing
by Matthew Booth 14 Dec '09

14 Dec '09

The following are improve the reliability of libvirt's mapping of character devices to pty paths. When qemu starts up it will output one or more lines of the form: char device redirected to /dev/pts/5 Note that the character device this refers to is not indicated, so the only way to match this up is by knowing the order they're written in. This is not a well-defined interface, and is therefore voodoo-magic. The current code works against current versions of QEMU. However, when using the -chardev syntax of newer QEMU, the output order changes (putting chardev first). The first patch works by making all character devices use -chardev if it's available. As well as being a better syntax, this makes the output of the redirection lines again match the order they're specified on the command line. The second patch uses this ordering to parse the ptys for channel devices from the log output. The third patch (almost) obsoletes the log output parsing method. If QEMU's monitor supports 'info chardev', this gives structured information about character devices, including pty mappings. The log output parsing method is still required because QEMU may not support info chardev, and because the monitor itself can be on a pty. The danger of the third patch is that it will fix errors in the log output parsing code, which may then bitrot. Matt

3 7

[libvirt] [PATCH 1/3] Make QEMU driver use -chardev everywhere when it's available
by Matthew Booth 14 Dec '09

14 Dec '09

Change -monitor, -serial and -parallel output to use -chardev if it is available. * src/qemu/qemu_conf.c: Update qemudBuildCommandLine to use -chardev where available. * tests/qemuxml2argvtest.c tests/qemuxml2argvdata/: Add -chardev equivalents for all current serial and parallel tests. --- src/qemu/qemu_conf.c | 108 +++++++++++++++++--- .../qemuxml2argv-channel-guestfwd.args | 2 +- .../qemuxml2argv-console-compat-chardev.args | 1 + .../qemuxml2argv-console-compat-chardev.xml | 28 +++++ .../qemuxml2argv-parallel-tcp-chardev.args | 1 + .../qemuxml2argv-parallel-tcp-chardev.xml | 27 +++++ .../qemuxml2argv-serial-dev-chardev.args | 1 + .../qemuxml2argv-serial-dev-chardev.xml | 30 ++++++ .../qemuxml2argv-serial-file-chardev.args | 1 + .../qemuxml2argv-serial-file-chardev.xml | 30 ++++++ .../qemuxml2argv-serial-many-chardev.args | 1 + .../qemuxml2argv-serial-many-chardev.xml | 32 ++++++ .../qemuxml2argv-serial-pty-chardev.args | 1 + .../qemuxml2argv-serial-pty-chardev.xml | 28 +++++ .../qemuxml2argv-serial-tcp-chardev.args | 1 + .../qemuxml2argv-serial-tcp-chardev.xml | 32 ++++++ .../qemuxml2argv-serial-tcp-telnet-chardev.args | 1 + .../qemuxml2argv-serial-tcp-telnet-chardev.xml | 32 ++++++ .../qemuxml2argv-serial-udp-chardev.args | 1 + .../qemuxml2argv-serial-udp-chardev.xml | 32 ++++++ .../qemuxml2argv-serial-unix-chardev.args | 1 + .../qemuxml2argv-serial-unix-chardev.xml | 30 ++++++ .../qemuxml2argv-serial-vc-chardev.args | 1 + .../qemuxml2argv-serial-vc-chardev.xml | 28 +++++ tests/qemuxml2argvtest.c | 12 ++ 25 files changed, 445 insertions(+), 17 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-console-compat-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-console-compat-chardev.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp-chardev.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-dev-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-dev-chardev.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-file-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-file-chardev.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-many-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-many-chardev.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-pty-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-pty-chardev.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-chardev.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet-chardev.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-unix-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-unix-chardev.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-vc-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-vc-chardev.xml diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index a25fac6..86172c6 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1863,17 +1863,37 @@ int qemudBuildCommandLine(virConnectPtr conn, if (monitor_chr) { virBuffer buf = VIR_BUFFER_INITIALIZER; - if (monitor_json) - virBufferAddLit(&buf, "control,"); + /* Use -chardev if it's available */ + if (qemuCmdFlags & QEMUD_CMD_FLAG_CHARDEV) { + qemudBuildCommandLineChrDevChardevStr(monitor_chr, "monitor", &buf); + if (virBufferError(&buf)) { + virBufferFreeAndReset(&buf); + goto no_memory; + } + + ADD_ARG_LIT("-chardev"); + ADD_ARG(virBufferContentAndReset(&buf)); + + if (monitor_json) + virBufferAddLit(&buf, "control,"); + + virBufferAddLit(&buf, "chardev:monitor"); + } + + else { + if (monitor_json) + virBufferAddLit(&buf, "control,"); + + qemudBuildCommandLineChrDevStr(monitor_chr, &buf); + } - qemudBuildCommandLineChrDevStr(monitor_chr, &buf); if (virBufferError(&buf)) { virBufferFreeAndReset(&buf); goto no_memory; } ADD_ARG_LIT("-monitor"); - ADD_ARG(virBufferContentAndReset(&buf)); + ADD_ARG_LIT(virBufferContentAndReset(&buf)); } if (def->localtime) @@ -2199,14 +2219,42 @@ int qemudBuildCommandLine(virConnectPtr conn, virBuffer buf = VIR_BUFFER_INITIALIZER; virDomainChrDefPtr serial = def->serials[i]; - qemudBuildCommandLineChrDevStr(serial, &buf); - if (virBufferError(&buf)) { - virBufferFreeAndReset(&buf); - goto no_memory; + /* Use -chardev if it's available */ + if (qemuCmdFlags & QEMUD_CMD_FLAG_CHARDEV) { + char id[16]; + + if (snprintf(id, sizeof(id), "serial%i", i) > sizeof(id)) + goto error; + + qemudBuildCommandLineChrDevChardevStr(serial, id, &buf); + if (virBufferError(&buf)) { + virBufferFreeAndReset(&buf); + goto no_memory; + } + + ADD_ARG_LIT("-chardev"); + ADD_ARG(virBufferContentAndReset(&buf)); + + virBufferVSprintf(&buf, "chardev:%s", id); + if (virBufferError(&buf)) { + virBufferFreeAndReset(&buf); + goto no_memory; + } + + ADD_ARG_LIT("-serial"); + ADD_ARG(virBufferContentAndReset(&buf)); } - ADD_ARG_LIT("-serial"); - ADD_ARG(virBufferContentAndReset(&buf)); + else { + qemudBuildCommandLineChrDevStr(serial, &buf); + if (virBufferError(&buf)) { + virBufferFreeAndReset(&buf); + goto no_memory; + } + + ADD_ARG_LIT("-serial"); + ADD_ARG(virBufferContentAndReset(&buf)); + } } } @@ -2218,14 +2266,42 @@ int qemudBuildCommandLine(virConnectPtr conn, virBuffer buf = VIR_BUFFER_INITIALIZER; virDomainChrDefPtr parallel = def->parallels[i]; - qemudBuildCommandLineChrDevStr(parallel, &buf); - if (virBufferError(&buf)) { - virBufferFreeAndReset(&buf); - goto no_memory; + /* Use -chardev if it's available */ + if (qemuCmdFlags & QEMUD_CMD_FLAG_CHARDEV) { + char id[16]; + + if (snprintf(id, sizeof(id), "parallel%i", i) > sizeof(id)) + goto error; + + qemudBuildCommandLineChrDevChardevStr(parallel, id, &buf); + if (virBufferError(&buf)) { + virBufferFreeAndReset(&buf); + goto no_memory; + } + + ADD_ARG_LIT("-chardev"); + ADD_ARG(virBufferContentAndReset(&buf)); + + virBufferVSprintf(&buf, "chardev:%s", id); + if (virBufferError(&buf)) { + virBufferFreeAndReset(&buf); + goto no_memory; + } + + ADD_ARG_LIT("-parallel"); + ADD_ARG(virBufferContentAndReset(&buf)); } - ADD_ARG_LIT("-parallel"); - ADD_ARG(virBufferContentAndReset(&buf)); + else { + qemudBuildCommandLineChrDevStr(parallel, &buf); + if (virBufferError(&buf)) { + virBufferFreeAndReset(&buf); + goto no_memory; + } + + ADD_ARG_LIT("-parallel"); + ADD_ARG(virBufferContentAndReset(&buf)); + } } } diff --git a/tests/qemuxml2argvdata/qemuxml2argv-channel-guestfwd.args b/tests/qemuxml2argvdata/qemuxml2argv-channel-guestfwd.args index b5bb46d..deaff92 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-channel-guestfwd.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-channel-guestfwd.args @@ -1 +1 @@ -LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -serial none -parallel none -chardev pipe,id=channel0,path=/tmp/guestfwd -net user,guestfwd=tcp:10.0.2.1:4600-chardev:channel0 -usb +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -serial none -parallel none -chardev pipe,id=channel0,path=/tmp/guestfwd -net user,guestfwd=tcp:10.0.2.1:4600-chardev:channel0 -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-console-compat-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-console-compat-chardev.args new file mode 100644 index 0000000..fbb94f4 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-console-compat-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -chardev pty,id=serial0 -serial chardev:serial0 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-console-compat-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-console-compat-chardev.xml new file mode 100644 index 0000000..c16ae07 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-console-compat-chardev.xml @@ -0,0 +1,28 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <serial type='pty'> + <target port='0'/> + </serial> + <console type='pty'> + <target port='0'/> + </console> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp-chardev.args new file mode 100644 index 0000000..45d1759 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -serial none -chardev socket,id=parallel0,host=127.0.0.1,port=9999,server,nowait -parallel chardev:parallel0 -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp-chardev.xml new file mode 100644 index 0000000..08176f1 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-parallel-tcp-chardev.xml @@ -0,0 +1,27 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <parallel type='tcp'> + <source mode='bind' host='127.0.0.1' service='9999'/> + <protocol type='raw'/> + <target port='0'/> + </parallel> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-dev-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-dev-chardev.args new file mode 100644 index 0000000..3036f13 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-dev-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -chardev tty,id=serial0,path=/dev/ttyS2 -serial chardev:serial0 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-dev-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-dev-chardev.xml new file mode 100644 index 0000000..2b8ef5a --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-dev-chardev.xml @@ -0,0 +1,30 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <serial type='dev'> + <source path='/dev/ttyS2'/> + <target port='0'/> + </serial> + <console type='dev'> + <source path='/dev/ttyS2'/> + <target port='0'/> + </console> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-file-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-file-chardev.args new file mode 100644 index 0000000..1dcec2b --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-file-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -chardev file,id=serial0,path=/tmp/serial.log -serial chardev:serial0 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-file-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-file-chardev.xml new file mode 100644 index 0000000..3726816 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-file-chardev.xml @@ -0,0 +1,30 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <serial type='file'> + <source path='/tmp/serial.log'/> + <target port='0'/> + </serial> + <console type='file'> + <source path='/tmp/serial.log'/> + <target port='0'/> + </console> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-many-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-many-chardev.args new file mode 100644 index 0000000..dd98fcb --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-many-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -chardev pty,id=serial0 -serial chardev:serial0 -chardev file,id=serial1,path=/tmp/serial.log -serial chardev:serial1 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-many-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-many-chardev.xml new file mode 100644 index 0000000..444e85b --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-many-chardev.xml @@ -0,0 +1,32 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <serial type='pty'> + <target port='0'/> + </serial> + <serial type='file'> + <source path='/tmp/serial.log'/> + <target port='1'/> + </serial> + <console type='pty'> + <target port='0'/> + </console> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-pty-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-pty-chardev.args new file mode 100644 index 0000000..fbb94f4 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-pty-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -chardev pty,id=serial0 -serial chardev:serial0 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-pty-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-pty-chardev.xml new file mode 100644 index 0000000..c16ae07 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-pty-chardev.xml @@ -0,0 +1,28 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <serial type='pty'> + <target port='0'/> + </serial> + <console type='pty'> + <target port='0'/> + </console> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-chardev.args new file mode 100644 index 0000000..50cfeb0 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -chardev socket,id=serial0,host=127.0.0.1,port=9999 -serial chardev:serial0 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-chardev.xml new file mode 100644 index 0000000..3bcf62d --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-chardev.xml @@ -0,0 +1,32 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <serial type='tcp'> + <source mode='connect' host='127.0.0.1' service='9999'/> + <protocol type='raw'/> + <target port='0'/> + </serial> + <console type='tcp'> + <source mode='connect' host='127.0.0.1' service='9999'/> + <protocol type='raw'/> + <target port='0'/> + </console> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet-chardev.args new file mode 100644 index 0000000..86fa8af --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -chardev socket,id=serial0,host=127.0.0.1,port=9999,telnet,server,nowait -serial chardev:serial0 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet-chardev.xml new file mode 100644 index 0000000..bea4306 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-telnet-chardev.xml @@ -0,0 +1,32 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <serial type='tcp'> + <source mode='bind' host='127.0.0.1' service='9999'/> + <protocol type='telnet'/> + <target port='0'/> + </serial> + <console type='tcp'> + <source mode='bind' host='127.0.0.1' service='9999'/> + <protocol type='telnet'/> + <target port='0'/> + </console> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.args new file mode 100644 index 0000000..45421a4 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -chardev udp,id=serial0,host=127.0.0.1,port=9998,localaddr=127.0.0.1,localport=9999 -serial chardev:serial0 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.xml new file mode 100644 index 0000000..115166d --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.xml @@ -0,0 +1,32 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <serial type='udp'> + <source mode='bind' host='127.0.0.1' service='9999'/> + <source mode='connect' host='127.0.0.1' service='9998'/> + <target port='0'/> + </serial> + <console type='udp'> + <source mode='bind' host='127.0.0.1' service='9999'/> + <source mode='connect' host='127.0.0.1' service='9998'/> + <target port='0'/> + </console> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-unix-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-unix-chardev.args new file mode 100644 index 0000000..f291156 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-unix-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -chardev socket,id=serial0,path=/tmp/serial.sock -serial chardev:serial0 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-unix-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-unix-chardev.xml new file mode 100644 index 0000000..4236b4c --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-unix-chardev.xml @@ -0,0 +1,30 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <serial type='unix'> + <source mode='connect' path='/tmp/serial.sock'/> + <target port='0'/> + </serial> + <console type='unix'> + <source mode='connect' path='/tmp/serial.sock'/> + <target port='0'/> + </console> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-vc-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-vc-chardev.args new file mode 100644 index 0000000..a200225 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-vc-chardev.args @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -chardev socket,id=monitor,path=/tmp/test-monitor,server,nowait -monitor chardev:monitor -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -chardev vc,id=serial0 -serial chardev:serial0 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-vc-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-vc-chardev.xml new file mode 100644 index 0000000..1e5de8f --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-vc-chardev.xml @@ -0,0 +1,28 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <serial type='vc'> + <target port='0'/> + </serial> + <console type='vc'> + <target port='0'/> + </console> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index c39cbbc..3b0aa2b 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -273,6 +273,18 @@ mymain(int argc, char **argv) DO_TEST("parallel-tcp", 0); DO_TEST("console-compat", 0); + DO_TEST("serial-vc-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("serial-pty-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("serial-dev-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("serial-file-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("serial-unix-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("serial-tcp-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("serial-udp-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("serial-tcp-telnet-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("serial-many-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("parallel-tcp-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("console-compat-chardev", QEMUD_CMD_FLAG_CHARDEV); + DO_TEST("channel-guestfwd", QEMUD_CMD_FLAG_CHARDEV); DO_TEST("sound", 0); -- 1.6.5.2

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[libvirt] [PATCH] Suppress cgroup error message on sucess in qemudStartVMDaemon
by Ryota Ozaki 14 Dec '09

14 Dec '09

Even if qemudStartVMDaemon suceeds, an error is logged such as 'qemuRemoveCgroup:1778 : internal error Unable to find cgroup for'. This is because qemudStartVMDaemon calls qemuRemoveCgroup to ensure that old cgroup does not remain. This workaround makes sense but leaving an error message may confuse users. This patch simply adds an option to suppress the error log if not needed. --- src/qemu/qemu_driver.c | 16 +++++++++------- 1 files changed, 9 insertions(+), 7 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index a4a87ac..84ee942 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -1763,7 +1763,8 @@ cleanup: static int qemuRemoveCgroup(virConnectPtr conn, struct qemud_driver *driver, - virDomainObjPtr vm) + virDomainObjPtr vm, + int quiet) { virCgroupPtr cgroup; int rc; @@ -1773,9 +1774,10 @@ static int qemuRemoveCgroup(virConnectPtr conn, rc = virCgroupForDomain(driver->cgroup, vm->def->name, &cgroup, 0); if (rc != 0) { - qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, - _("Unable to find cgroup for %s\n"), - vm->def->name); + if (!quiet) + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("Unable to find cgroup for %s\n"), + vm->def->name); return rc; } @@ -2142,7 +2144,7 @@ static int qemudStartVMDaemon(virConnectPtr conn, return -1; /* Ensure no historical cgroup for this VM is lieing around bogus settings */ - qemuRemoveCgroup(conn, driver, vm); + qemuRemoveCgroup(conn, driver, vm, 1); if ((vm->def->ngraphics == 1) && vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC && @@ -2327,7 +2329,7 @@ cleanup: VIR_FREE(vm->def->seclabel.label); VIR_FREE(vm->def->seclabel.imagelabel); } - qemuRemoveCgroup(conn, driver, vm); + qemuRemoveCgroup(conn, driver, vm, 0); if ((vm->def->ngraphics == 1) && vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC && vm->def->graphics[0]->data.vnc.autoport) @@ -2416,7 +2418,7 @@ static void qemudShutdownVMDaemon(virConnectPtr conn, qemuDomainReAttachHostDevices(conn, driver, vm->def); retry: - if ((ret = qemuRemoveCgroup(conn, driver, vm)) < 0) { + if ((ret = qemuRemoveCgroup(conn, driver, vm, 0)) < 0) { if (ret == -EBUSY && (retries++ < 5)) { usleep(200*1000); goto retry; -- 1.6.5.2

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[libvirt] Having some issue with : virConnectRef
by anuj rampal 14 Dec '09

14 Dec '09

Hi, Im trying to call libvirt functions from a widows machine. The client version i'm using is 0.6.1. My application is a multi-Threaded application. This is the way my application works: 1. I connect to Libvirt using "virConnectOpen". (this done only once when my application starts). 2. For funther interaction with libvirt i just call "virConnectRef" and then i call some other function like "virNodeGetInfo". 3. Then i call "virConnectClose". Now my understanding is for every "virConnectRef" call there has to be a corrosponding "virConnectClose". In my application call to number of calls to "virConnectClose" is always equal to "virConnectRef". and "virConnectClose" corrosponding to "virConnectOpen" is called when the application is closed. So connection to libvirt should always be there till the time my application is running. But what is happening is, even if i call "virConnectRef" twice, a single call to "virConnectClose" closes the connection with libvirt. Is there anything that im doing wrong here...?? Regards Anuj

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[libvirt] Expected wiki.libvirt.org downtime
by Daniel P. Berrange 14 Dec '09

14 Dec '09

The machine that hosts wiki.libvirt.org is being physically relocated this weekend. So expect the wiki to be unavailable for upto 48 hours across Sat/Sun Dec 12/13th Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

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[libvirt] Toward the next 0.7.5 release
by Daniel Veillard 11 Dec '09

11 Dec '09

The last release was 0.7.4 on Nov 20, so if we try to keep with the one month release cycle, we would end up with a release on Friday 25, but I really plan on celebrating Chrismas with my familly that day instead of spending time in front of a computer (I plan to roast a pig and that requires all my attention :-) I would prefer to not wait too much, as there were some serious locking bugs in 0.7.4, and I would rather not wait until the end of the vacations either. So I'm tempted to push on Wed 23, with possibly a smaller timeframe for the bug fixes only window. We didn't (yet!) introduce major changes inside (except maybe for the VirtualBox driver and early bug have been reported) and Matthias has been debugging seriously with the TCK so things should be in relatively good shape out of git. So my plan right nw would be to enter freeze, next Friday the 18th and push the release 0f 0.7.5 on the 23rd. So send those patches along and if we forgot to ACK patches please raise our attention about them, thanks ! Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

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[libvirt] Out of band channels
by Matthew Booth 11 Dec '09

11 Dec '09

A libvirt client can connect to libvirt on a remote host. However, on its own this doesn't give the client a usable level of access. The reason for this is that libvirt doesn't expose some critical management interfaces. For QEMU this amounts to pretty much anything provided directly by the QEMU process, including: * VNC console [1] * Any character device [2] I'm undecided as to whether access to underlying storage falls into this bucket. It would certainly be convenient in certain circumstances. This means, for example that I need out of band access to: * See a graphical console * Connect to a serial console * Connect to a guest channel As these are fairly fundamental operations, I wonder if there has been any thought towards creating tunnels over a libvirt connection. In the first instance, I think this would require a generic method to multiplex multiple streams over a single remote connection. This would obviously be a significant protocol change. Would a messaging protocol, AMQP for instance, be a good candidate here? Secondly, I think interfaces which currently create local resources should have a default which is managed by libvirt itself. So you'd have: <serial> <target port='0'/> </serial> or <serial type='managed'> <target port='0'/> </serial> This would cause libvirt to create whichever host-side chardev is most convenient to it and connect itself. The API would then expose read and write APIs for the named connection. e.g: virDomainFoo foo;[3] if = virDomainGetFoo(domain, "serial0"); bytesIn = virDomainFooRead(foo, &buf, sizeof(buf)); A client application could expose this in a variety of ways locally. Matt [1] There's an open RFE for this one: https://bugzilla.redhat.com/show_bug.cgi?id=526953 [2] e.g. virsh # console RHEL3.FV.64.IDE error: Cannot connect to a remote console device [3] What would you call it? -- Matthew Booth, RHCA, RHCSS Red Hat Engineering, Virtualisation Team M: +44 (0)7977 267231 GPG ID: D33C3490 GPG FPR: 3733 612D 2D05 5458 8A8A 1600 3441 EA19 D33C 3490

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[libvirt] [PATCH] Fix reference leak in remoteDispatchStorageVolCreateXmlFrom
by Matthias Bolte 11 Dec '09

11 Dec '09

--- daemon/remote.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/daemon/remote.c b/daemon/remote.c index 3117615..7a43046 100644 --- a/daemon/remote.c +++ b/daemon/remote.c @@ -4118,12 +4118,15 @@ remoteDispatchStorageVolCreateXmlFrom (struct qemud_server *server ATTRIBUTE_UNU clonevol = get_nonnull_storage_vol (conn, args->clonevol); if (clonevol == NULL) { + virStoragePoolFree(pool); remoteDispatchConnError(rerr, conn); return -1; } newvol = virStorageVolCreateXMLFrom (pool, args->xml, clonevol, args->flags); + virStorageVolFree(clonevol); + virStoragePoolFree(pool); if (newvol == NULL) { remoteDispatchConnError(rerr, conn); return -1; -- 1.6.0.4

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[libvirt] [PATCH] Fix memory leak in virStorageBackendCopyToFD
by Matthias Bolte 11 Dec '09

11 Dec '09

--- src/storage/storage_backend.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index a3b4d5a..9dc801c 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -198,6 +198,8 @@ cleanup: if (inputfd != -1) close(inputfd); + VIR_FREE(buf); + return ret; } -- 1.6.0.4

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[libvirt] simple LXC/libvirt busybox container (Unable to get cgroup)
by Tony Risinger 11 Dec '09

11 Dec '09

i'm trying to get even the simplest busybox container with libvirt+LXC with very limited success. I feel l am missing something supremely simple for me to be hung on this for weeks. i dont see anything interesting in domain log, but getting this error from "LIBVIRT_DEBUG=1 libvirtd": 05:27:56.113: error : lxcDomainGetInfo:462 : internal error Unable to get cgroup for arch-nano 05:27:56.113: debug : virDomainFree:2004 : domain=0x81d8e68 05:27:56.113: debug : virUnrefDomain:422 : unref domain 0x81d8e68 arch-nano 1 05:27:56.113: debug : virReleaseDomain:376 : release domain 0x81d8e68 arch-nano 05:27:56.113: debug : virReleaseDomain:392 : unref connection 0x81dc0f0 2 05:27:56.113: debug : remoteSerializeError:141 : prog=536903814 ver=1 proc=16 type=1 serial=4, msg=internal error Unable to get cgroup for arch-nano i've been using this root filesystem layout: [root@PHS-001 arch-nano]# tree . |-- bin | |-- cat -> ../sbin/busybox | |-- chdir -> ../sbin/busybox | |-- chmod -> ../sbin/busybox | |-- ls -> ../sbin/busybox | |-- rm -> ../sbin/busybox | |-- sh -> ../sbin/busybox | `-- vi -> ../sbin/busybox |-- dev | `-- pts |-- etc |-- proc |-- sbin | |-- busybox | `-- init -> busybox `-- sys all folders besides /bin and /sbin were created by libvirt. i tried using the /sbin/init script previously suggested: #!/sbin/busybox sh but i get a similar results either way (script/symlink): 8173 ? Ss 0:00 /usr/lib/libvirt-git/libvirt_lxc --name arch-nano --console 11 --background 8175 pts/0 Ss+ 0:00 init 8177 ? Ss 0:00 init 8181 ? Zs 0:00 [init] <defunct> 8182 ? Zs 0:00 [init] <defunct> 8183 ? Zs 0:00 [init] <defunct> "busybox init" doc says that without an /etc/inittab, sh will be started on /dev/tty2... im am using this config: <domain type='lxc'> <name>arch-nano</name> <memory>500000</memory> <os> <type>exe</type> <init>/sbin/init</init> </os> <devices> <filesystem type='mount'> <source dir='/vps/dom/arch-nano'/> <target dir='/'/> </filesystem> </devices> </domain> on this config i tried removing the console/serial section altogether, but i attempted many configurations of serial/console, including changing the <target> to "2", in attempt to match busybox default. [root@PHS-001 arch-nano]# virsh -c lxc:/// console arch-nano error: Unable to get domain status error: internal error Unable to get cgroup for arch-nano [root@PHS-001 arch-nano]# mount | grep cgroup none on /cgroup type cgroup (rw) if anyone can please point out what i am doing wrong to not be able to move the root and get a console, i'd greatly appreciate it. ive been really stuck on this; i'd rather not write a bunch of scripts/wrappers for lxc-* tools when libvirt does it all splendidly already! libvirt 0.7.4+ kernel 2.6.32 (am i missing a CONFIG_*?) thanks for your time

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