Hello,
My server ran about 4days, the kernel crash.
/var/log/message：
Jan 20 08:05:38 es13 kernel: INFO: task xenwatch:129 blocked for more than 120 seconds.
Jan 20 08:05:38 es13 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 20 08:05:38 es13 kernel: xenwatch D ffff8808fea943c0 0 129 2 0x00000000
Jan 20 08:05:38 es13 kernel: ffff8808a6909d18 0000000000000246 ffff8808a6909fd8 00000000000143c0
Jan 20 08:05:38 es13 kernel: ffff8808a6908010 00000000000143c0 00000000000143c0 00000000000143c0
Jan 20 08:05:38 es13 kernel: ffff8808a6909fd8 00000000000143c0 ffff8808a6907540 ffff8808a7720ac0
Jan 20 08:05:38 es13 kernel: Call Trace:
Jan 20 08:05:38 es13 kernel: [<ffffffff815f4339>] schedule+0x29/0x70
Jan 20 08:05:38 es13 kernel: [<ffffffffa04675c5>] xenvif_disconnect+0x85/0xe0 [xen_netback]
Jan 20 08:05:38 es13 kernel: [<ffffffff81082640>] ? wake_up_bit+0x40/0x40
Jan 20 08:05:38 es13 kernel: [<ffffffffa04667d5>] set_backend_state+0xd5/0x1c0 [xen_netback]
Jan 20 08:05:38 es13 kernel: [<ffffffffa0466cc6>] frontend_changed+0xb6/0x100 [xen_netback]
Jan 20 08:05:38 es13 kernel: [<ffffffff813579a8>] xenbus_otherend_changed+0xa8/0xb0
Jan 20 08:05:38 es13 kernel: [<ffffffff81357be0>] frontend_changed+0x10/0x20
Jan 20 08:05:38 es13 kernel: [<ffffffff81355731>] xenwatch_thread+0xb1/0x170
Jan 20 08:05:38 es13 kernel: [<ffffffff81082640>] ? wake_up_bit+0x40/0x40
Jan 20 08:05:38 es13 kernel: [<ffffffff81355680>] ? xs_watch+0x60/0x60
Jan 20 08:05:38 es13 kernel: [<ffffffff81081e2e>] kthread+0xce/0xe0
Jan 20 08:05:38 es13 kernel: [<ffffffff8100392e>] ? xen_end_context_switch+0x1e/0x30
Jan 20 08:05:38 es13 kernel: [<ffffffff81081d60>] ? kthread_freezable_should_stop+0x70/0x70
Jan 20 08:05:38 es13 kernel: [<ffffffff815fe66c>] ret_from_fork+0x7c/0xb0
Jan 20 08:05:38 es13 kernel: [<ffffffff81081d60>] ? kthread_freezable_should_stop+0x70/0x70
# xl list
Name ID Mem VCPUs State Time(s)
Domain-0 0 34899 24 r----- 1847934.0
(null) 2752 0 1 --p--d 43.7
(null) 2754 0 1 --p--d 168.2
(null) 2755 0 1 --p--d 153.1
(null) 2756 0 1 --p--d 32.8
(null) 2757 0 1 --p--d 234.9
(null) 2758 0 1 --p--d 52.1
(null) 2759 0 1 --p--d 24.3
(null) 2760 0 1 --p--d 20.5
(null) 2761 0 1 --p--d 261.9
(null) 2762 0 1 --p--d 91.0
(null) 2763 0 1 --p--d 26.6
(null) 2764 0 1 --p--d 26.2
(null) 2765 0 1 --p--d 56.5
(null) 2766 0 1 --p--d 10.6
(null) 2767 0 1 --p--d 32.7
(null) 2768 0 1 --p--d 42.1
(null) 2769 0 1 --p--d 65.2
(null) 2770 0 1 --p--d 274.8
(null) 2771 0 1 --p--d 107.2
(null) 2772 0 1 --p--d 32.7
# xl info
release : 3.10.20-11.el6.centos.alt.x86_64
version : #1 SMP Sat Nov 23 23:08:56 UTC 2013
machine : x86_64
nr_cpus : 24
max_cpu_id : 23
nr_nodes : 2
cores_per_socket : 6
threads_per_core : 2
cpu_mhz : 2600
hw_caps : b7ebfbff:77bee3ff:2c100800:00000001:00000001:00000281:00000000:00000100
virt_caps : hvm hvm_directio
total_memory : 65506
free_memory : 6667
sharing_freed_memory : 0
sharing_used_memory : 0
outstanding_claims : 0
free_cpus : 0
xen_major : 4
xen_minor : 8
xen_extra : .0
xen_version : 4.8.0
xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler : credit
xen_pagesize : 4096
platform_params : virt_start=0xffff800000000000
xen_changeset :
xen_commandline : dom0_mem=35736884 loglvl=all guest_loglvl=all
cc_compiler : gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16)
cc_compile_by : xikangjie
cc_compile_domain : (none)
cc_compile_date : Fri Dec 9 14:49:01 CST 2016
build_id : 8bd07d490bbae9862d3bfdca07c7551e8792389f
xend_config_format : 4
And I can’t create new vms.
Xen version is 4.8.0, Linux kernel version is 3.10.20-11, does I need to upgrade linux kernel?
- xikangjie
