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Aug 31st, 2011
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  1. root@xenturio2:~# xl console testvm-2.6
  2. PM: early restore of devices complete after 0.084 msecs
  3. invalid opcode: 0000 [#1] SMP
  4. last sysfs file: /sys/devices/virtual/vc/vcsa6/uevent
  5. CPU 0
  6. Pid: 897, comm: rs:main Q:Reg Not tainted 2.6.39-xenU #5
  7. RIP: e030:[<ffffffff811fcd44>] [<ffffffff811fcd44>] cfq_insert_request+0x1a8/0x434
  8. RSP: e02b:ffff88001a4b5bc8 EFLAGS: 00010046
  9. RAX: 0000000000000001 RBX: ffff88001a4cc828 RCX: ffff88001fadd300
  10. RDX: 0000000000000111 RSI: 0000000000000002 RDI: 00000000000001ff
  11. RBP: ffff88001faaf800 R08: 00000000006b28e0 R09: ffff88001a4b0270
  12. R10: 0000000000000000 R11: ffff88001fb022a0 R12: ffff88001fb022a0
  13. R13: ffff88001a4b5c08 R14: ffff88001a4b0270 R15: 0000000000000000
  14. FS: 00007f8b9ff08700(0000) GS:ffff88001feb4000(0000) knlGS:0000000000000000
  15. CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
  16. CR2: 00007f8ba1b03312 CR3: 0000000019c92000 CR4: 0000000000002660
  17. DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  18. DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  19. Process rs:main Q:Reg (pid: 897, threadinfo ffff88001a4b4000, task ffff88001fa73080)
  20. Stack:
  21. 0000000091827364 ffff88001fa28000 ffff88001fb022a0 ffff88001a4b5c00
  22. ffff88001a4b5c08 ffffffff811f0dbb ffff88001a4b5bf8 ffff88001a4b5bf8
  23. ffff88001a4b5c08 ffff88001a4b5c08 ffff88001fec6dc0 ffff88001fef5e28
  24. Call Trace:
  25. [<ffffffff811f0dbb>] ? blk_flush_plug_list+0x1b2/0x20f
  26. [<ffffffff810a9c7b>] ? sleep_on_page+0xd/0xd
  27. [<ffffffff81347005>] ? io_schedule+0x6f/0xc4
  28. [<ffffffff810a9c84>] ? sleep_on_page_killable+0x9/0x30
  29. [<ffffffff8134747f>] ? __wait_on_bit_lock+0x3c/0x85
  30. [<ffffffff810a9c05>] ? __lock_page_killable+0x5d/0x63
  31. [<ffffffff8107c7be>] ? autoremove_wake_function+0x2a/0x2a
  32. [<ffffffff810ab414>] ? generic_file_aio_read+0x410/0x5e4
  33. [<ffffffff810daa23>] ? do_sync_read+0xb1/0xea
  34. [<ffffffff8102ebf2>] ? check_events+0x12/0x20
  35. [<ffffffff810db4c8>] ? vfs_read+0xaa/0x14b
  36. [<ffffffff810db61f>] ? sys_read+0x45/0x6e
  37. [<ffffffff81349092>] ? system_call_fastpath+0x16/0x1b
  38. Code: 85 c0 74 06 80 78 40 00 78 3f 48 8b 41 18 8b 40 08 85 c0 74 34 8b b5 f8 02 00 00 85 f6 74 2a f6 43 05 08 75 10 8b bb bc 00 00 00 <f3> 40 0f b8 c7 83 f8 04 77 14 48 83 79 30 50 76 27 31 c0 89 f6
  39. RIP [<ffffffff811fcd44>] cfq_insert_request+0x1a8/0x434
  40. RSP <ffff88001a4b5bc8>
  41. ---[ end trace a4b4473621986c76 ]---
  42. rsyslogd[899] trap invalid opcode ip:7f8ba0e56396 sp:7f8b9ef05d58 error:0 in libc-2.11.2.so[7f8ba0d4f000+158000]
  43.  
  44.  
  45.  
  46.  
  47.  
  48.  
  49.  
  50. root@xenturio2:~# /usr/lib/xen/bin/xenctx -s /boot/System.map-2.6.39-xenU 4 0
  51. rip: ffffffff810013aa hypercall_page+0x3aa
  52. flags: 00001202 i nz
  53. rsp: ffff88001a4b58a8
  54. rax: 0000000000000000 rcx: ffffffff810013aa rdx: ffff88001a4b58dc
  55. rbx: 0000000000000000 rsi: ffff88001a4b58c0 rdi: 0000000000000003
  56. rbp: 0000000000000011 r8: ffff88001a4b58c0 r9: 0000000000000001
  57. r10: ffff88001f81a000 r11: 0000000000000202 r12: 0000000000000000
  58. r13: 0000000000000401 r14: 0000000000000001 r15: ffff88001fa73208
  59. cs: e033 ss: e02b ds: 0000 es: 0000
  60. fs: 0000 @ 00007f8b9ff08700
  61. gs: 0000 @ ffff88001feb4000/0000000000000000
  62. Code (instr addr ffffffff810013aa)
  63. cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc
  64.  
  65.  
  66. Stack:
  67. ffffffff8102ebdf ffff88001f81a000 ffffffff812542e9 ffff88001a4b58dc
  68. ffffffff00000001 0000000000000000 0000000881254353 ffffffff815ca638
  69. ffffffff8102ffa4 ffffffff813485e5 0000000000000001 ffffffff815ca638
  70. 0000000000000001 0000000000000200 0000000000000400 0000000000000000
  71.  
  72. Call Trace:
  73. [<ffffffff810013aa>] hypercall_page+0x3aa <--
  74. [<ffffffff8102ebdf>] xen_restore_fl_direct_end
  75. [<ffffffff812542e9>] xen_poll_irq_timeout+0x38
  76. [<ffffffff8102ffa4>] xen_spin_lock_slow+0x89
  77. [<ffffffff813485e5>] _raw_spin_lock+0x5
  78. [<ffffffff81030044>] xen_spin_lock_flags+0x4d
  79. [<ffffffff81348606>] _raw_spin_lock_irqsave+0x1e
  80. [<ffffffff8109d6db>] __call_rcu+0x122
  81. [<ffffffff811fb4c1>] cfq_exit_single_io_context+0x29
  82. [<ffffffff811fb519>] cfq_exit_io_context+0x24
  83. [<ffffffff811f3b77>] exit_io_context+0x4e
  84. [<ffffffff8106a37b>] do_exit+0x6b1
  85. [<ffffffff810340bc>] oops_end+0x96
  86. [<ffffffff81032206>] do_invalid_op+0x8b
  87. [<ffffffff811fcd44>] cfq_insert_request+0x1a8
  88. [<ffffffff81349d1b>] invalid_op+0x1b
  89. [<ffffffff811fcd44>] cfq_insert_request+0x1a8
  90. [<ffffffff811fcc11>] cfq_insert_request+0x75
  91. [<ffffffff811f0dbb>] blk_flush_plug_list+0x1b2
  92. [<ffffffff810a9c7b>] sleep_on_page_killable
  93. [<ffffffff81347005>] io_schedule+0x6f
  94. [<ffffffff810a9c84>] sleep_on_page_killable+0x9
  95. [<ffffffff8134747f>] __wait_on_bit_lock+0x3c
  96. [<ffffffff810a9c05>] __lock_page_killable+0x5d
  97. [<ffffffff8107c7be>] wake_bit_function
  98. [<ffffffff810ab414>] generic_file_aio_read+0x410
  99. [<ffffffff810daa23>] do_sync_read+0xb1
  100. [<ffffffff8102ebf2>] check_events+0x12
  101. [<ffffffff810db4c8>] vfs_read+0xaa
  102. [<ffffffff810db61f>] sys_read+0x45
  103. [<ffffffff81349092>] system_call_fastpath+0x16
  104. root@xenturio2:~# /usr/lib/xen/bin/xenctx -s /boot/System.map-2.6.39-xenU 4 1
  105. rip: ffffffff810013aa hypercall_page+0x3aa
  106. flags: 00001202 i nz
  107. rsp: ffff88001fae7bd8
  108. rax: 0000000000000000 rcx: ffffffff810013aa rdx: ffff88001fae7c0c
  109. rbx: 0000000000000000 rsi: ffff88001fae7bf0 rdi: 0000000000000003
  110. rbp: 0000000000000017 r8: 0000000000000001 r9: ffff88001fa748c0
  111. r10: ffff88001fae6010 r11: 0000000000000202 r12: 0000000000000000
  112. r13: 0000000000000401 r14: 0000000000000001 r15: ffff88001fa74a48
  113. cs: e033 ss: e02b ds: 0000 es: 0000
  114. fs: 0000 @ 00007f8ba1b05700
  115. gs: 0000 @ ffff88001fecd000/0000000000000000
  116. Code (instr addr ffffffff810013aa)
  117. cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc
  118.  
  119.  
  120. Stack:
  121. ffffffff8102ebdf ffff88001fa748c0 ffffffff812542e9 ffff88001fae7c0c
  122. ffffffff00000001 0000000000000000 0000000e81254353 ffffffff815ca638
  123. ffffffff8102ffa4 0000000000000001 0000000000000001 ffffffff815ca638
  124. 0000000000000001 0000000000000200 0000000000000400 0000000000000000
  125.  
  126. Call Trace:
  127. [<ffffffff810013aa>] hypercall_page+0x3aa <--
  128. [<ffffffff8102ebdf>] xen_restore_fl_direct_end
  129. [<ffffffff812542e9>] xen_poll_irq_timeout+0x38
  130. [<ffffffff8102ffa4>] xen_spin_lock_slow+0x89
  131. [<ffffffff81030044>] xen_spin_lock_flags+0x4d
  132. [<ffffffff81036851>] sched_clock+0x5
  133. [<ffffffff81348606>] _raw_spin_lock_irqsave+0x1e
  134. [<ffffffff811fb4c1>] cfq_exit_single_io_context+0x29
  135. [<ffffffff811fb519>] cfq_exit_io_context+0x24
  136. [<ffffffff811f3b77>] exit_io_context+0x4e
  137. [<ffffffff8106a37b>] do_exit+0x6b1
  138. [<ffffffff810af41d>] __alloc_pages_nodemask+0x104
  139. [<ffffffff8106a427>] do_group_exit+0x81
  140. [<ffffffff81073b45>] get_signal_to_deliver+0x31f
  141. [<ffffffff81030fd1>] do_signal+0x6a
  142. [<ffffffff81082ee8>] ktime_get_ts+0x66
  143. [<ffffffff810e88a8>] poll_select_copy_remaining+0xce
  144. [<ffffffff8103160e>] do_notify_resume+0x25
  145. [<ffffffff81349360>] int_signal+0x12
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