[Xen-bugs] [Bug 1303] sometimes vm.drop_caches = 3 deadlocks domU

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1303





------- Comment #1 from jamundso@xxxxxxxxx  2008-07-19 19:10 -------
I've run crash against two xm dump-core's of the domU in the deadlocked state.
Only thing noted so far is a swapper process on each vcpu.
  SYSTEM MAP: System.map-2.6.9-67.0.20.ELxenU                          
DEBUG KERNEL: /usr/lib/debug/lib/modules/2.6.9-67.0.20.ELxenU/vmlinux
(2.6.9-67.0.20.ELxenU)
    DUMPFILE: /mnt/IntSys/tmp/xdlive4
        CPUS: 4
        DATE: Sat Jul 19 14:56:25 2008
      UPTIME: 1 days, 02:58:37
LOAD AVERAGE: 641.71, 275.25, 104.25
       TASKS: 1827
    NODENAME: monolith
     RELEASE: 2.6.9-67.0.20.ELxenU
     VERSION: #1 SMP Thu Jun 26 08:36:44 EDT 2008
     MACHINE: x86_64  (2194 Mhz)
      MEMORY: 10 GB
       PANIC: ""
         PID: 0
     COMMAND: "swapper"
        TASK: ffffffff80322b40  (1 of 4)  [THREAD_INFO: ffffffff80426000]
         CPU: 0
       STATE: TASK_RUNNING 
     WARNING: panic task not found
   PID    PPID  CPU       TASK        ST  %MEM     VSZ    RSS  COMM
      0      0   0  ffffffff80322b40  RU   0.0       0      0  [swapper]
      0      1   1  ffffff800e7b1030  RU   0.0       0      0  [swapper]
      0      1   2  ffffff80006727f0  RU   0.0       0      0  [swapper]
      0      1   3  ffffff8000672030  RU   0.0       0      0  [swapper]
      1      0   1  ffffff800e7b17f0  RU   0.0    4756    528  init
      2      1   0  ffffff80000047f0  IN   0.0       0      0  [migration/0]
      3      1   0  ffffff8000004030  IN   0.0       0      0  [ksoftirqd/0]
      4      1   0  ffffff800009d7f0  RU   0.0       0      0  [events/0]
      5      1   2  ffffff800009d030  IN   0.0       0      0  [khelper]
      6      1   3  ffffff80000fc7f0  IN   0.0       0      0  [kthread]
      7      6   0  ffffff80000fc030  IN   0.0       0      0  [xenwatch]
      8      6   0  ffffff828000b7f0  IN   0.0       0      0  [xenbus]


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