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[Xen-users] Xen 3.2 @ Debian 5.0 / Debian 4.0 DomU crashes daily

  • To: xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: Adrian Gajan <admin@xxxxxxxxxx>
  • Date: Tue, 28 Jul 2009 15:12:58 +0100 (GMT+01:00)
  • Delivery-date: Tue, 28 Jul 2009 07:13:51 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
Hello,

on my xen host, Debian 5.0 I have few domU's running, most of them are Lenny's, 
a couple is running at Etch (Debian 4.0). All domU's are running stable except 
of one (Etch / Debian 4.0). This one crashes almost daily and I wasn't able 
figure out the reason why.

Inside the domU there is nothing installed except of base system and Zimbra ZCS 
5.0 and its dependencies. 

/var/log/xen/*:

/var/log/xen/xend.log:[2009-07-25 18:15:01 5312] WARNING (XendDomainInfo:1258) 
Domain has crashed: name=ezbox-mail id=78.
/var/log/xen/xend.log:[2009-07-27 12:24:33 5312] WARNING (XendDomainInfo:1258) 
Domain has crashed: name=ezbox-mail id=90.
/var/log/xen/xend.log.1:[2009-06-18 20:51:15 5312] WARNING 
(XendDomainInfo:1258) Domain has crashed: name=gold-eck id=11.
/var/log/xen/xend.log.1:[2009-07-06 16:17:54 5312] WARNING 
(XendDomainInfo:1258) Domain has crashed: name=gold-eck id=32.
/var/log/xen/xend.log.1:[2009-07-10 17:44:18 5312] WARNING 
(XendDomainInfo:1258) Domain has crashed: name=ezbox-mail id=39.
/var/log/xen/xend.log.1:[2009-07-12 03:17:01 5312] WARNING 
(XendDomainInfo:1258) Domain has crashed: name=zoom id=22.
/var/log/xen/xend.log.1:[2009-07-14 00:29:34 5312] WARNING 
(XendDomainInfo:1258) Domain has crashed: name=ezbox-mail id=41.
/var/log/xen/xend.log.1:[2009-07-17 09:23:41 5312] WARNING 
(XendDomainInfo:1258) Domain has crashed: name=ezbox-mail id=48.
/var/log/xen/xend.log.1:[2009-07-18 19:00:39 5312] WARNING 
(XendDomainInfo:1258) Domain has crashed: name=ezbox-mail id=61.
/var/log/xen/xend.log.1:[2009-07-20 23:31:53 5312] WARNING 
(XendDomainInfo:1258) Domain has crashed: name=ezbox-mail id=73.
/var/log/xen/xend.log.1:[2009-07-21 19:53:52 5312] WARNING 
(XendDomainInfo:1258) Domain has crashed: name=ezbox-mail id=77.

[2009-07-27 12:24:33 5312] WARNING (XendDomainInfo:1258) Domain has crashed: 
name=ezbox-mail id=90.
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:1914) 
XendDomainInfo.destroyDomain(90)
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:1529) Destroying device model
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:1536) Releasing devices
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:1542) Removing vif/0
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:590) 
XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:1542) Removing vbd/2049
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:590) 
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/2049
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:1542) Removing vbd/2050
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:590) 
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/2050
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:1542) Removing console/0
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:590) 
XendDomainInfo.destroyDevice: deviceClass = console, device = console/0
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:1534) No device model
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:1536) Releasing devices
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:106) 
XendDomainInfo.create_from_dict({'vcpus_params': {'cap': 0, 'weight': 256}, 
'PV_args': 'root=/dev/sda1 w 2 xencons=tty', 'features': '', 'cpus': 
[],'paused': 0, 'domid': 90, 'shutdown': 0, 'VCPUs_live': 1, 'PV_bootloader': 
'', 'actions_after_crash': 'restart', 'vbd_refs': 
['17605587-2a3d-9bf7-cfd9-0a73d7e790a9', 
'4ea50e6a-3555-017e-1a5f-4f0743a1a823'], 'PV_ramdisk': 
'/boot/initrd.img-2.6.26-2-xen-686', 'is_control_domain': False, 'name_label': 
'ezbox-mail', 'VCPUs_at_startup': 1, 'HVM_boot_params': {}, 'platform': {}, 
'PV_kernel': '/boot/vmlinuz-2.6.26-2-xen-686', 'console_refs': 
['40da175e-201f-b323-03e7-5a047af801d4'], 'online_vcpus': 4, 'blocked': 0, 
'on_xend_stop': 'ignore', 'memory_static_min': 0, 'HVM_boot_policy': '', 
'shutdown_reason': 3,'VCPUs_max': 4, 'start_time': 1248680841.6013069, 
'memory_static_max': 1073741824, 'actions_after_shutdown': 'destroy', 
'on_xend_start': 'ignore', 'crashed': 0, 'memory_dynamic_max': 1073741824, 
'actions_after_suspend': '', 'is_a_template': False, 'PV_bootloader_args': '', 
'memory_dynamic_min': 1073741824, 'uuid': 
'b8b20508-0e7a-b295-70ce-641b24a8b523', 'cpu_time': 1081.302577748, 
'shadow_memory': 0, 'dying': 0, 'vcpu_avail': 15, 'notes': {'HV_START_LOW': 
4118806528L, 'FEATURES': 
'writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel',
 'VIRT_BASE': 3221225472L, 'GUEST_VERSION': '2.6', 'PADDR_OFFSET': 0, 
'GUEST_OS': 'linux', 'HYPERCALL_PAGE': 3222278144L, 'LOADER': 'generic', 
'SUSPEND_CANCEL': 1, 'PAE_MODE': 'yes', 'ENTRY': 3222274048L, 'XEN_VERSION': 
'xen-3.0'}, 'other_config': {}, 'running': 0, 'actions_after_reboot': 
'restart', 'vif_refs': ['1f05db22-508c-2088-f068-dd7e7e6c3904'], 'vtpm_refs': 
[], 'devices': {'1f05db22-508c-2088-f068-dd7e7e6c3904': ('vif', {'ip': 
'188.40.250.104', 'mac': '00:16:3E:00:00:08', 'devid': 0, 'uuid': 
'1f05db22-508c-2088-f068-dd7e7e6c3904'}), 
'17605587-2a3d-9bf7-cfd9-0a73d7e790a9': ('vbd', {'uuid': 
'17605587-2a3d-9bf7-cfd9-0a73d7e790a9', 'bootable': 1, 'devid': 2049, 'driver': 
'paravirtualised', 'dev': 'sda1', 'uname': 'phy:/dev/adnese/ezbox_mail', 
'mode': 'w'}), '4ea50e6a-3555-017e-1a5f-4f0743a1a823': ('vbd', {'uuid': 
'4ea50e6a-3555-017e-1a5f-4f0743a1a823', 'bootable': 0, 'devid': 2050, 'driver': 
'paravirtualised', 'dev': 'sda2', 'uname': 'phy:/dev/adnese/ezbox_mail_swap', 
'mode': 'w'}), '40da175e-201f-b323-03e7-5a047af801d4': ('console', 
{'other_config': {}, 'protocol': 'vt100', 'uuid': 
'40da175e-201f-b323-03e7-5a047af801d4', 'location': '2'})}})
[2009-07-27 12:24:33 5312] ERROR (XendDomainInfo:111) Domain construction failed
Traceback (most recent call last):
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomainInfo.py", line 109, in 
create_from_dict
    vm.start()
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomainInfo.py", line 444, in 
start
    raise XendError('VM already running')
XendError: VM already running
[2009-07-27 12:24:33 5312] DEBUG (XendDomainInfo:1897) XendDomainInfo.destroy: 
domid=90
[2009-07-27 12:24:33 5312] ERROR (XendDomainInfo:1425) Failed to restart domain 
90.
Traceback (most recent call last):
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomainInfo.py", line 1410, 
in _restart
    self.info)
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomain.py", line 975, in 
domain_create_from_dict
    dominfo = XendDomainInfo.create_from_dict(config_dict)
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomainInfo.py", line 109, in 
create_from_dict
    vm.start()
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomainInfo.py", line 444, in 
start
    raise XendError('VM already running')
XendError: VM already running

config file contains:
on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'restart'

I see somewhere in the logs a short notice about the DomU couldn't start 
however there is a restart for on_crash option defined

Host:
release                : 2.6.26-2-xen-686
version                : #1 SMP Thu May 28 18:35:28 UTC 2009
machine                : i686
nr_cpus                : 8
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 2
cpu_mhz                : 2673
hw_caps                : 
bfebfbff:28000000:00000000:00000140:0098e3bd:00000000:00000001
total_memory           : 12279
free_memory            : 256
node_to_cpu            : node0:0-7
xen_major              : 3
xen_minor              : 2
xen_extra              : -1
xen_caps               : xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xf5800000
xen_changeset          : unavailable
cc_compiler            : gcc version 4.3.1 (Debian 4.3.1-2)
cc_compile_by          : waldi
cc_compile_domain      : debian.org
cc_compile_date        : Sat Jun 28 15:25:00 UTC 2008
xend_config_format     : 4

Thank you for every hint.

Regards,

Adrian

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