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RE: [Xen-users] Xen 3.2.1-2 on Debian Lenny 2.6.26 2.6.26-24

from [Maciej Liżewski] [Permanent Link][Original]
To: "'Peter Viskup'" <skupko.sk@xxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Xen 3.2.1-2 on Debian Lenny 2.6.26 2.6.26-24
From: Maciej Liżewski <maciej.lizewski@xxxxx>
Date: Tue, 13 Jul 2010 10:35:34 +0200
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Hi,

 

Unfortunately there are no errors either In logs or console output. In xen.log there is:

 

[2010-07-11 04:00:02 4078] WARNING (XendDomainInfo:1258) Domain has crashed: name=web id=5.

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:1914) XendDomainInfo.destroyDomain(5)

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:1529) Destroying device model

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:1536) Releasing devices

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:1542) Removing vif/0

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:590) XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:1542) Removing vbd/51713

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:590) XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/51713

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:1542) Removing vbd/51714

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:590) XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/51714

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:1542) Removing console/0

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:590) XendDomainInfo.destroyDevice: deviceClass = console, device = console/0

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:1534) No device model

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:1536) Releasing devices

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:106) XendDomainInfo.create_from_dict({'vcpus_params': {'cap': 0, 'weight': 256}, 'PV_args': 'root=/dev/xvda2 ro clocksource

=jiffies', 'features': '', 'cpus': [], 'paused': 0, 'actions_after_reboot': 'restart', 'shutdown': 0, 'VCPUs_live': 1, 'PV_bootloader': '', 'actions_after_crash': 'restart'

, 'vbd_refs': ['4af090ff-7ded-2e40-e641-0f6a812cb1b7', '0bd0bd32-432e-62f0-291f-e52caadef552'], 'PV_ramdisk': '/boot/initrd.img-2.6.26-2-xen-686', 'is_control_domain': Fals

e, 'name_label': 'web', 'VCPUs_at_startup': 1, 'HVM_boot_params': {}, 'platform': {}, 'PV_kernel': '/boot/vmlinuz-2.6.26-2-xen-686', 'console_refs': ['0de68767-8e44

-424e-bce3-4e75700a90fd'], 'online_vcpus': 4, 'blocked': 0, 'on_xend_stop': 'ignore', 'memory_static_min': 0, 'HVM_boot_policy': '', 'shutdown_reason': 3, 'VCPUs_max': 4, '

start_time': 1278275055.0122731, 'memory_static_max': 2147483648L, 'actions_after_shutdown': 'destroy', 'on_xend_start': 'ignore', 'crashed': 0, 'memory_dynamic_max': 21474

83648L, 'actions_after_suspend': '', 'is_a_template': False, 'PV_bootloader_args': '', 'memory_dynamic_min': 2147483648L, 'uuid': '103c0d3b-7612-fd0e-9adf-4345c84e5602', 'c

pu_time': 45506.519344966, 'shadow_memory': 0, 'dying': 0, 'vcpu_avail': 15, 'notes': {'HV_START_LOW': 4118806528L, 'FEATURES': 'writable_page_tables|writable_descriptor_ta

bles|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel', 'VIRT_BASE': 3221225472L, 'GUEST_VERSION': '2.6', 'PADDR_OFFSET': 0, 'GUEST_OS': 'linux', 'HYPERCA

LL_PAGE': 3222278144L, 'LOADER': 'generic', 'SUSPEND_CANCEL': 1, 'PAE_MODE': 'yes', 'ENTRY': 3222274048L, 'XEN_VERSION': 'xen-3.0'}, 'other_config': {}, 'running': 0, 'domi

d': 5, 'vif_refs': ['583adee6-2d81-2ee4-e5cf-06bce4c1dc4a'], 'vtpm_refs': [], 'devices': {'0bd0bd32-432e-62f0-291f-e52caadef552': ('vbd', {'uuid': '0bd0bd32-432e-62f0-291f-

e52caadef552', 'bootable': 0, 'devid': 51714, 'driver': 'paravirtualised', 'dev': 'xvda2', 'uname': 'phy:/dev/lvg/web-disk', 'mode': 'w'}), '4af090ff-7ded-2e40-e641

-0f6a812cb1b7': ('vbd', {'uuid': '4af090ff-7ded-2e40-e641-0f6a812cb1b7', 'bootable': 1, 'devid': 51713, 'driver': 'paravirtualised', 'dev': 'xvda1', 'uname': 'phy:/dev/lvg/

web-swap', 'mode': 'w'}), '0de68767-8e44-424e-bce3-4e75700a90fd': ('console', {'location': '2', 'devid': 0, 'protocol': 'vt100', 'uuid': '0de68767-8e44-424e-bce3-4e

75700a90fd', 'other_config': {}}), '583adee6-2d81-2ee4-e5cf-06bce4c1dc4a': ('vif', {'ip': '10.20.22.131', 'mac': '00:16:3E:16:9A:43', 'devid': 0, 'uuid': '583adee6-2d81-2ee

4-e5cf-06bce4c1dc4a', 'bridge': 'eth1'})}})

[2010-07-11 04:00:02 4078] 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

[2010-07-11 04:00:02 4078] DEBUG (XendDomainInfo:1897) XendDomainInfo.destroy: domid=5

[2010-07-11 04:00:02 4078] ERROR (XendDomainInfo:1425) Failed to restart domain 5.

 

 

Same time on domU (restart was initiated by watchdog on dom0 – script on cron checking if every domU is up and running):

 

Jul 11 03:59:01 web /USR/SBIN/CRON[32055]: (xxxx) CMD (sh /home/xxxx/generator.sh 1>/dev/null)

Jul 11 03:59:01 web /USR/SBIN/CRON[32056]: (xyyy) CMD (sh /home/yyyy/generator.sh 1>/dev/null)

Jul 11 04:02:12 web kernel: imklog 3.18.6, log source = /proc/kmsg started.

Jul 11 04:02:12 web kernel: [    0.000000] Initializing cgroup subsys cpuset

Jul 11 04:02:12 web kernel: [    0.000000] Initializing cgroup subsys cpu

Jul 11 04:02:12 web kernel: [    0.000000] Linux version 2.6.26-2-xen-686 (Debian 2.6.26-24) (dannf@xxxxxxxxxx) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 SMP Mon Jun 21

 10:37:05 UTC 2010

Jul 11 04:02:12 web kernel: [    0.000000] Reserving virtual address space above 0xf5800000

Jul 11 04:02:12 web kernel: [    0.000000] BIOS-provided physical RAM map:

Jul 11 04:02:12 web kernel: [    0.000000]  Xen: 0000000000000000 - 0000000080800000 (usable)

Jul 11 04:02:12 web kernel: [    0.000000] 1328MB HIGHMEM available.

Jul 11 04:02:12 web kernel: [    0.000000] 728MB LOWMEM available.

Jul 11 04:02:12 web kernel: [    0.000000] NX (Execute Disable) protection: active

Jul 11 04:02:12 web kernel: [    0.000000] Entering add_active_range(0, 0, 526336) 0 entries of 256 used

Jul 11 04:02:12 web kernel: [    0.000000] Zone PFN ranges:

Jul 11 04:02:12 web kernel: [    0.000000]   DMA             0 ->     4096

Jul 11 04:02:12 web kernel: [    0.000000]   Normal       4096 ->   186368

Jul 11 04:02:12 web kernel: [    0.000000]   HighMem    186368 ->   526336

Jul 11 04:02:12 web kernel: [    0.000000] Movable zone start PFN for each node

Jul 11 04:02:12 web kernel: [    0.000000] early_node_map[1] active PFN ranges

Jul 11 04:02:12 web kernel: [    0.000000]     0:        0 ->   526336

Jul 11 04:02:12 web kernel: [    0.000000] On node 0 totalpages: 526336

 

Cron scripts have schedule to run every minute, so those calls aren’t unusual and cannot be primary reason for crash…

 

There are some segfault from php5-cgi, but they were not present at the crash time (guess they have something to do with php5-suhosin module)…

 

Jul  8 22:12:51 web kernel: [345103.172278] php5-cgi[9975]: segfault at 120 ip 082dd95f sp bfff76d0 error 4 in php5-cgi[8048000+4cf000]

Jul  8 22:20:24 web kernel: [345556.528923] php5-cgi[10293]: segfault at 120 ip 082dd95f sp bfff7fb0 error 4 in php5-cgi[8048000+4cf000]

Jul  8 22:24:44 web kernel: [345816.800299] php5-cgi[10524]: segfault at 120 ip 082dd95f sp bfff8ba0 error 4 in php5-cgi[8048000+4cf000]

Jul  8 22:36:39 web kernel: [346531.763830] php5-cgi[10640]: segfault at 120 ip 082dd95f sp bfff7510 error 4 in php5-cgi[8048000+4cf000]

Jul  8 22:48:49 web kernel: [347261.661357] php5-cgi[10949]: segfault at 120 ip 082dd95f sp bfff7b10 error 4 in php5-cgi[8048000+4cf000]

Jul  8 22:49:10 web kernel: [347282.927768] php5-cgi[11241]: segfault at 120 ip 082dd95f sp bfff7690 error 4 in php5-cgi[8048000+4cf000]

Jul  8 22:51:10 web kernel: [347402.846540] php5-cgi[11253]: segfault at 120 ip 082dd95f sp bfff7fe0 error 4 in php5-cgi[8048000+4cf000]

Jul  9 06:25:01 web kernel: Kernel logging (proc) stopped.

Jul  9 06:25:02 web kernel: imklog 3.18.6, log source = /proc/kmsg started.

Jul  9 06:25:02 web rsyslogd: [origin software="rsyslogd" swVersion="3.18.6" x-pid="2120" x-info="http://www.rsyslog.com"] restart

Jul 10 06:25:01 web kernel: Kernel logging (proc) stopped.

Jul 10 06:25:01 web kernel: imklog 3.18.6, log source = /proc/kmsg started.

Jul 10 06:25:01 web rsyslogd: [origin software="rsyslogd" swVersion="3.18.6" x-pid="2120" x-info="http://www.rsyslog.com"] restart

Jul 11 04:02:12 web kernel: imklog 3.18.6, log source = /proc/kmsg started.

Jul 11 04:02:12 web kernel: [    0.000000] Initializing cgroup subsys cpuset

Jul 11 04:02:12 web kernel: [    0.000000] Initializing cgroup subsys cpu

Jul 11 04:02:12 web kernel: [    0.000000] Linux version 2.6.26-2-xen-686 (Debian 2.6.26-24) (dannf@xxxxxxxxxx) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 SMP Mon Jun 21

 10:37:05 UTC 2010

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