我使用 Ubuntu 10.04.4 LTS 来托管 KVM 虚拟机。我使用 eucalyptus 来管理它们，但 libvirt 无法与 KVM 组件交互，并且超时，这导致 Eucalyptus 认为实例已死。
注意到 kern.log 中有很多这样的消息。有人能帮我确定这些消息是什么意思吗？
May 5 03:57:03 [host] kernel: [3638726.030567] INFO: task parted:24773 blocked for more than 120 seconds.
May 5 03:57:03 [host] kernel: [3638726.030828] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
May 5 03:57:03 [host] kernel: [3638726.042960] parted D 00000000ffffffff 0 24773 24772 0x00000000
May 5 03:57:03 [host] kernel: [3638726.042969] ffff880e119add28 0000000000000082 0000000000015f00 0000000000015f00
May 5 03:57:03 [host] kernel: [3638726.042976] ffff8815d00c9ad0 ffff880e119adfd8 0000000000015f00 ffff8815d00c9700
May 5 03:57:03 [host] kernel: [3638726.042983] 0000000000015f00 ffff880e119adfd8 0000000000015f00 ffff8815d00c9ad0
May 5 03:57:03 [host] kernel: [3638726.042990] Call Trace:
May 5 03:57:03 [host] kernel: [3638726.043004] [<ffffffff8155866d>] schedule_timeout+0x22d/0x300
May 5 03:57:03 [host] kernel: [3638726.043012] [<ffffffff81100a45>] ? pagevec_lookup_tag+0x25/0x40
May 5 03:57:03 [host] kernel: [3638726.043017] [<ffffffff810ff8af>] ? write_cache_pages+0xef/0x3e0
May 5 03:57:03 [host] kernel: [3638726.043023] [<ffffffff810fe800>] ? __writepage+0x0/0x40
May 5 03:57:03 [host] kernel: [3638726.043026] [<ffffffff815577e6>] wait_for_common+0xd6/0x180
May 5 03:57:03 [host] kernel: [3638726.043031] [<ffffffff8105dd7b>] ? try_to_wake_up+0x2fb/0x480
May 5 03:57:03 [host] kernel: [3638726.043035] [<ffffffff8105df00>] ? default_wake_function+0x0/0x20
May 5 03:57:03 [host] kernel: [3638726.043039] [<ffffffff8155794d>] wait_for_completion+0x1d/0x20
May 5 03:57:03 [host] kernel: [3638726.043047] [<ffffffff81169361>] writeback_inodes_sb+0xb1/0xe0
May 5 03:57:03 [host] kernel: [3638726.043052] [<ffffffff8116e09e>] __sync_filesystem+0x3e/0x90
May 5 03:57:03 [host] kernel: [3638726.043056] [<ffffffff8116e1c9>] sync_filesystems+0xd9/0x130
May 5 03:57:03 [host] kernel: [3638726.043061] [<ffffffff8116e277>] sys_sync+0x17/0x40
May 5 03:57:03 [host] kernel: [3638726.043068] [<ffffffff810131b2>] system_call_fastpath+0x16/0x1b
跑步
libvirt-bin 0.7.5-5ubuntu27.22
qemu-kvm 0.12.3+noroms-0ubuntu9.18