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Dutch Meyer

2009-Jun-02 20:42 UTC

[Xen-devel] [PATCH] blktap2 - human readable output for tapdisk2 creation problems.

This patch fixes the "file object has no attribute find" failure
we''ve
been seeing when starting blktap2 devices and adds more meaningful error 
output to conditions where the tapdisk2 process is unable to create a 
blktap2 device.

Signed-off-by: Dutch Meyer <dmeyer@cs.ubc.ca>

--Dutch

_______________________________________________
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Dutch Meyer

2009-Jun-05 03:46 UTC

head link

[Xen-devel] [PATCH] blktap2 - README updates, strictly documentation, nothing could possiblie go wrong with this checkin.

As promised, this brings the long out-of-sync documentation up to date, 
and adds some getting started information about tapdisk driver development 
- I get the occasional email on this latter subject.

Signed-off-by: Dutch Meyer <dmeyer@cs.ubc.ca>

--Dutch

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Zhang, Yang

2009-Jun-08 03:08 UTC

head link

[Xen-devel] RE: [PATCH] blktap2 - human readable output for tapdisk2 creation problems.

hi, with this patch. i can not see extra info in xend.log
it still show the error:
Error: Device 768 (tap) could not be connected. Setting up the backend failed.
See the log files in /var/log/xen/ for details.

i have take a look at this issue. seems the tap 768 hotplug-status return error.
Before cs 19647. it always is connected.

here is xend.log:
[2009-06-08 11:05:26 12131] INFO (SrvDaemon:332) Xend Daemon started
[2009-06-08 11:05:26 12131] INFO (SrvDaemon:336) Xend changeset: Tue May 19
23:44:28 2009 +0100 19626:145e49b8574c.
[2009-06-08 11:05:26 12131] DEBUG (XendDomainInfo:142)
XendDomainInfo.recreate({''max_vcpu_id'': 7,
''cpu_time'': 1127231157532L, ''ssidref'': 0,
''hvm'': 0, ''shutdown_reason'': 0,
''dying'': 0, ''online_vcpus'': 8,
''domid'': 0, ''paused'': 0,
''crashed'': 0, ''running'': 1,
''maxmem_kb'': 17179869180L, ''shutdown'': 0,
''mem_kb'': 524288L, ''handle'': [0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], ''blocked'': 0,
''name'': ''Domain-0''})
[2009-06-08 11:05:26 12131] INFO (XendDomainInfo:159) Recreating domain 0, UUID
00000000-0000-0000-0000-000000000000. at /local/domain/0
[2009-06-08 11:05:26 12131] DEBUG (XendDomain:452) Adding Domain: 0
[2009-06-08 11:05:26 12131] DEBUG (XendDomain:386) number of vcpus to use is 0
[2009-06-08 11:05:26 12131] DEBUG (XendDomainInfo:1766)
XendDomainInfo.handleShutdownWatch
[2009-06-08 11:05:26 12131] WARNING (XendAPI:701) API call: VBD.set_device not
found
[2009-06-08 11:05:26 12131] WARNING (XendAPI:701) API call: VBD.set_type not
found
[2009-06-08 11:05:26 12131] WARNING (XendAPI:701) API call:
session.get_all_records not found
[2009-06-08 11:05:26 12131] WARNING (XendAPI:701) API call: event.get_record not
found
[2009-06-08 11:05:26 12131] WARNING (XendAPI:701) API call: event.get_all not
found
[2009-06-08 11:05:26 12131] WARNING (XendAPI:701) API call: VIF.get_network not
found
[2009-06-08 11:05:26 12131] WARNING (XendAPI:701) API call: VIF.set_device not
found
[2009-06-08 11:05:26 12131] WARNING (XendAPI:701) API call: VIF.set_MAC not
found
[2009-06-08 11:05:26 12131] WARNING (XendAPI:701) API call: VIF.set_MTU not
found
[2009-06-08 11:05:26 12131] WARNING (XendAPI:701) API call: debug.get_all not
found
[2009-06-08 11:05:26 12131] INFO (XMLRPCServer:156) Opening Unix domain socket
XML-RPC server on /var/run/xend/xen-api.sock; authentication has been disabled
for this server.
[2009-06-08 11:05:26 12131] INFO (XMLRPCServer:156) Opening Unix domain socket
XML-RPC server on /var/run/xend/xmlrpc.sock.
[2009-06-08 11:05:28 12131] DEBUG (XendDomainInfo:94)
XendDomainInfo.create([''vm'', [''name'',
''ExampleHVMDomain''], [''memory'', 512],
[''vcpus'', 1], [''on_xend_start'',
''ignore''], [''on_xend_stop'',
''ignore''], [''image'',
[''hvm'', [''kernel'',
''/usr/lib/xen/boot/hvmloader''], [''videoram'',
4], [''device_model'',
''/usr/lib64/xen/bin/qemu-dm''], [''pae'', 1],
[''vcpus'', 1], [''boot'',
''c''], [''fda'', ''''],
[''fdb'', ''''],
[''timer_mode'', 1], [''localtime'', 0],
[''serial'', ''pty''],
[''stdvga'', 0], [''isa'', 0],
[''nographic'', 0], [''soundhw'',
''''], [''vnc'', 1],
[''vncunused'', 1], [''sdl'', 0],
[''display'', ''localhost:1.0''],
[''xauthority'', ''/root/.Xauthority''],
[''rtc_timeoffset'', 0], [''monitor'', 0],
[''acpi'', 1], [''apic'', 1],
[''usb'', 0], [''usbdevice'',
''''], [''keymap'', ''''],
[''pci'', []], [''hpet'', 0],
[''guest_os_type'', ''default''],
[''hap'', 1], [''opengl'', 1],
[''cpuid'', []], [''cpuid_check'', []],
[''viridian'', 0], [''pci_msitranslate'', 1],
[''vpt_align'', 1], [''pci_power_mgmt'', 0],
[''xen_platform_pci'', 1], [''vncpasswd'',
''XXXXXXXX'']]], [''s3_integrity'', 1],
[''device'', [''tap'',
[''uname'',
''tap:tapdisk:qcow2:/root/yang/1.qcow2''],
[''dev'', ''hda''], [''mode'',
''w'']]], [''device'', [''vif'',
[''bridge'', ''xenbr0''],
[''type'', ''ioemu'']]]])
[2009-06-08 11:05:28 12131] DEBUG (XendDomainInfo:2353)
XendDomainInfo.constructDomain
[2009-06-08 11:05:28 12131] DEBUG (balloon:181) Balloon: 7757788 KiB free; need
4096; done.
[2009-06-08 11:05:28 12131] DEBUG (XendDomain:452) Adding Domain: 17
[2009-06-08 11:05:28 12131] DEBUG (XendDomainInfo:2555)
XendDomainInfo.initDomain: 17 256
[2009-06-08 11:05:28 12131] DEBUG (image:322) No VNC passwd configured for vfb
access
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: boot, val: c
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: fda, val: None
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: fdb, val: None
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: soundhw, val: None
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: localtime, val: 0
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: serial, val:
[''pty'']
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: std-vga, val: 0
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: isa, val: 0
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: acpi, val: 1
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: usb, val: 0
[2009-06-08 11:05:28 12131] DEBUG (image:828) args: usbdevice, val: None
[2009-06-08 11:05:28 12131] INFO (image:764) Need to create platform
device.[domid:17]
[2009-06-08 11:05:28 12131] DEBUG (XendDomainInfo:2579)
_initDomain:shadow_memory=0x0, memory_static_max=0x20000000,
memory_static_min=0x0.
[2009-06-08 11:05:28 12131] DEBUG (balloon:181) Balloon: 7756376 KiB free; need
535552; done.
[2009-06-08 11:05:28 12131] INFO (image:173) buildDomain os=hvm dom=17 vcpus=1
[2009-06-08 11:05:28 12131] DEBUG (image:881) domid          = 17
[2009-06-08 11:05:28 12131] DEBUG (image:882) image          =
/usr/lib/xen/boot/hvmloader
[2009-06-08 11:05:28 12131] DEBUG (image:883) store_evtchn   = 2
[2009-06-08 11:05:28 12131] DEBUG (image:884) memsize        = 512
[2009-06-08 11:05:28 12131] DEBUG (image:885) target         = 512
[2009-06-08 11:05:28 12131] DEBUG (image:886) vcpus          = 1
[2009-06-08 11:05:28 12131] DEBUG (image:887) acpi           = 1
[2009-06-08 11:05:28 12131] DEBUG (image:888) apic           = 1
[2009-06-08 11:05:28 12131] INFO (XendDomainInfo:2217) createDevice: vfb :
{''vncunused'': 1, ''other_config'':
{''vncunused'': 1, ''vnc'':
''1''}, ''vnc'': ''1'',
''uuid'':
''87ec48ff-89d9-a37d-8f09-13918ff05ae9''}
[2009-06-08 11:05:28 12131] DEBUG (DevController:95) DevController: writing
{''state'': ''1'',
''backend-id'': ''0'',
''backend'':
''/local/domain/0/backend/vfb/17/0''} to
/local/domain/17/device/vfb/0.
[2009-06-08 11:05:28 12131] DEBUG (DevController:97) DevController: writing
{''vncunused'': ''1'',
''domain'': ''ExampleHVMDomain'',
''frontend'': ''/local/domain/17/device/vfb/0'',
''uuid'':
''87ec48ff-89d9-a37d-8f09-13918ff05ae9'',
''frontend-id'': ''17'',
''state'': ''1'', ''online'':
''1'', ''vnc'': ''1''} to
/local/domain/0/backend/vfb/17/0.
[2009-06-08 11:05:28 12131] INFO (XendDomainInfo:2217) createDevice: tap :
{''bootable'': 1, ''uname'':
''tap:tapdisk:qcow2:/root/yang/1.qcow2'',
''mode'': ''w'', ''dev'':
''hda'', ''uuid'':
''ee73c5c6-0506-5675-0db2-f71b87c8e100''}
[2009-06-08 11:05:28 12131] WARNING (BlktapController:128) WARNING: using
deprecated blktap module
[2009-06-08 11:05:28 12131] DEBUG (DevController:95) DevController: writing
{''backend-id'': ''0'',
''virtual-device'': ''768'',
''device-type'': ''disk'',
''state'': ''1'', ''backend'':
''/local/domain/0/backend/tap/17/768''} to
/local/domain/17/device/vbd/768.
[2009-06-08 11:05:28 12131] DEBUG (DevController:97) DevController: writing
{''domain'': ''ExampleHVMDomain'',
''frontend'':
''/local/domain/17/device/vbd/768'', ''uuid'':
''ee73c5c6-0506-5675-0db2-f71b87c8e100'',
''bootable'': ''1'', ''dev'':
''hda'', ''state'': ''1'',
''params'':
''tapdisk:qcow2:/root/yang/1.qcow2'', ''mode'':
''w'', ''online'': ''1'',
''frontend-id'': ''17'',
''type'': ''tap''} to
/local/domain/0/backend/tap/17/768.
[2009-06-08 11:05:28 12131] INFO (XendDomainInfo:2217) createDevice: vif :
{''bridge'': ''xenbr0'',
''mac'': ''00:16:3e:67:0c:5d'',
''type'': ''ioemu'', ''uuid'':
''02c76dd5-959a-9226-c775-1a97c45c0c3d''}
[2009-06-08 11:05:28 12131] DEBUG (DevController:95) DevController: writing
{''state'': ''1'',
''backend-id'': ''0'',
''backend'':
''/local/domain/0/backend/vif/17/0''} to
/local/domain/17/device/vif/0.
[2009-06-08 11:05:28 12131] DEBUG (DevController:97) DevController: writing
{''bridge'': ''xenbr0'',
''domain'': ''ExampleHVMDomain'',
''handle'': ''0'', ''uuid'':
''02c76dd5-959a-9226-c775-1a97c45c0c3d'',
''script'': ''/etc/xen/scripts/vif-bridge'',
''mac'': ''00:16:3e:67:0c:5d'',
''frontend-id'': ''17'',
''state'': ''1'', ''online'':
''1'', ''frontend'':
''/local/domain/17/device/vif/0'', ''type'':
''ioemu''} to /local/domain/0/backend/vif/17/0.
[2009-06-08 11:05:28 12131] INFO (image:394) spawning device models:
/usr/lib64/xen/bin/qemu-dm [''/usr/lib64/xen/bin/qemu-dm'',
''-d'', ''17'',
''-domain-name'', ''ExampleHVMDomain'',
''-videoram'', ''4'', ''-vnc'',
''127.0.0.1:0'', ''-vncunused'',
''-vcpus'', ''1'', ''-boot'',
''c'', ''-serial'', ''pty'',
''-acpi'', ''-net'',
''nic,vlan=1,macaddr=00:16:3e:67:0c:5d,model=rtl8139'',
''-net'',
''tap,vlan=1,ifname=tap17.0,bridge=xenbr0'',
''-M'', ''xenfv'']
[2009-06-08 11:05:28 12131] INFO (image:445) device model pid: 12188
[2009-06-08 11:05:28 12131] DEBUG (XendDomainInfo:3110) Storing VM details:
{''on_xend_stop'': ''ignore'',
''shadow_memory'': ''5'',
''uuid'':
''7c6cac34-bf69-488c-8793-602fc45ac1c9'',
''on_reboot'': ''restart'',
''start_time'': ''1244430328.7'',
''on_poweroff'': ''destroy'',
''bootloader_args'': '''',
''on_xend_start'': ''ignore'',
''on_crash'': ''restart'',
''xend/restart_count'': ''0'',
''vcpus'': ''1'',
''vcpu_avail'': ''1'',
''bootloader'': '''', ''image'':
''(hvm (kernel ) (superpages 0) (videoram 4) (hpet 0) (stdvga 0) (loader
/usr/lib/xen/boot/hvmloader) (serial pty) (vncunused 1) (xen_platform_pci 1)
(opengl 1) (boot c) (rtc_timeoffset 0) (pci ()) (pae 1) (vpt_align 1) (hap 1)
(viridian 0) (acpi 1) (localtime 0) (timer_mode 1) (vnc 1) (nographic 0)
(guest_os_type default) (pci_msitranslate 1) (apic 1) (sdl 0) (monitor 0)
(device_model /usr/lib64/xen/bin/qemu-dm) (pci_power_mgmt 0) (usb 0) (xauthority
/root/.Xauthority) (isa 0) (display localhost:1.0) (notes (SUSPEND_CANCEL
1)))'', ''name'': ''ExampleHVMDomain''}
[2009-06-08 11:05:28 12131] INFO (image:547) waiting for sentinel_fifo
[2009-06-08 11:05:28 12131] DEBUG (XendDomainInfo:1679) Storing domain details:
{''console/port'': ''3'',
''name'': ''ExampleHVMDomain'',
''console/limit'': ''1048576'',
''store/port'': ''2'', ''vm'':
''/vm/7c6cac34-bf69-488c-8793-602fc45ac1c9'',
''domid'': ''17'',
''image/suspend-cancel'': ''1'',
''cpu/0/availability'': ''online'',
''memory/target'': ''524288'',
''control/platform-feature-multiprocessor-suspend'':
''1'', ''store/ring-ref'':
''1044476'', ''console/type'':
''ioemu''}
[2009-06-08 11:05:28 12131] DEBUG (DevController:95) DevController: writing
{''state'': ''1'',
''backend-id'': ''0'',
''backend'':
''/local/domain/0/backend/console/17/0''} to
/local/domain/17/device/console/0.
[2009-06-08 11:05:28 12131] DEBUG (DevController:97) DevController: writing
{''domain'': ''ExampleHVMDomain'',
''frontend'':
''/local/domain/17/device/console/0'', ''uuid'':
''5630f6a4-ae44-c4a0-673c-cd387c565ebc'',
''frontend-id'': ''17'',
''state'': ''1'', ''location'':
''3'', ''online'': ''1'',
''protocol'': ''vt100''} to
/local/domain/0/backend/console/17/0.
[2009-06-08 11:05:28 12131] DEBUG (XendDomainInfo:1766)
XendDomainInfo.handleShutdownWatch
[2009-06-08 11:05:28 12131] DEBUG (DevController:139) Waiting for devices vif.
[2009-06-08 11:05:28 12131] DEBUG (DevController:144) Waiting for 0.
[2009-06-08 11:05:28 12131] DEBUG (DevController:657) hotplugStatusCallback
/local/domain/0/backend/vif/17/0/hotplug-status.
[2009-06-08 11:05:28 12131] DEBUG (DevController:671) hotplugStatusCallback 1.
[2009-06-08 11:05:28 12131] DEBUG (DevController:139) Waiting for devices vscsi.
[2009-06-08 11:05:28 12131] DEBUG (DevController:139) Waiting for devices vbd.
[2009-06-08 11:05:28 12131] DEBUG (DevController:139) Waiting for devices irq.
[2009-06-08 11:05:28 12131] DEBUG (DevController:139) Waiting for devices vkbd.
[2009-06-08 11:05:28 12131] DEBUG (DevController:139) Waiting for devices vfb.
[2009-06-08 11:05:28 12131] DEBUG (DevController:139) Waiting for devices
console.
[2009-06-08 11:05:28 12131] DEBUG (DevController:144) Waiting for 0.
[2009-06-08 11:05:28 12131] DEBUG (DevController:139) Waiting for devices pci.
[2009-06-08 11:05:28 12131] DEBUG (DevController:139) Waiting for devices
ioports.
[2009-06-08 11:05:28 12131] DEBUG (DevController:139) Waiting for devices tap.
[2009-06-08 11:05:28 12131] DEBUG (DevController:144) Waiting for 768.
[2009-06-08 11:05:28 12131] DEBUG (DevController:657) hotplugStatusCallback
/local/domain/0/backend/tap/17/768/hotplug-status.
[2009-06-08 11:05:38 12131] DEBUG (DevController:657) hotplugStatusCallback
/local/domain/0/backend/tap/17/768/hotplug-status.
[2009-06-08 11:05:38 12131] DEBUG (DevController:671) hotplugStatusCallback 2.
[2009-06-08 11:05:38 12131] DEBUG (XendDomainInfo:2782) XendDomainInfo.destroy:
domid=17
[2009-06-08 11:05:38 12131] DEBUG (XendDomainInfo:2256) Destroying device model
[2009-06-08 11:05:39 12131] INFO (image:572) ExampleHVMDomain device model
terminated
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:2263) Releasing devices
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:2276) Removing vif/0
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:1183)
XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:2276) Removing vbd/768
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:1183)
XendDomainInfo.destroyDevice: deviceClass = tap, device = vbd/768
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:2276) Removing vfb/0
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:1183)
XendDomainInfo.destroyDevice: deviceClass = vfb, device = vfb/0
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:2276) Removing console/0
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:1183)
XendDomainInfo.destroyDevice: deviceClass = console, device = console/0
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:2261) No device model
[2009-06-08 11:05:39 12131] DEBUG (XendDomainInfo:2263) Releasing devices

Best Regards
--yang

Dutch Meyer wrote:> This patch fixes the "file object has no attribute find" failure
we''ve
> been seeing when starting blktap2 devices and adds more meaningful
> error output to conditions where the tapdisk2 process is unable to
> create a blktap2 device.
> 
> Signed-off-by: Dutch Meyer <dmeyer@cs.ubc.ca>
> 
> --Dutch_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Xen devel - Jun 2009 - [PATCH] blktap2 - human readable output for tapdisk2 creation problems.

[Xen-devel] [PATCH] blktap2 - human readable output for tapdisk2 creation problems.

[Xen-devel] [PATCH] blktap2 - README updates, strictly documentation, nothing could possiblie go wrong with this checkin.

[Xen-devel] RE: [PATCH] blktap2 - human readable output for tapdisk2 creation problems.