VirtualBox

Changes between Initial Version and Version 1 of Ticket #11219, comment 6


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Timestamp:
09/05/13 05:26:20 (8 months ago)
Author:
CoreyAtOoyala
Comment:

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  • Ticket #11219, comment 6

    initial v1  
    1 The following configurations all eventually fail: 
     1The following configurations all eventually result in unresponsive VMs: 
    22 
    33* 10.7.4 with a single windows 7 VM 
     
    55* 10.7.5 with one windows 7 VM and one Windows XP VM 
    66 
    7 The same configurations under 10.6 do not encounter any errors. 
    8  
    97The failures are all as follows: 
    108 
    119* "aio_queue_async_request(): too many in flight for proc: 16" 
    12 * after several hundred of these warnings/errors disk IO errors are reported. Later filesystem diagnostics indicate that aio errors might result in filesystem corruption. 
     10* after several hundred of these warnings/errors disk IO errors are reported. Later filesystem diagnostics do not always find filesystem errors. 
    1311* The windows VMs are mostly unresponsive. They will respond to pings and initial RDP connection negotiation. However, anything involving IO freezes. 
    1412* VBoxManage controlvm commands never complete. 
     
    2523 
    2624I replaced Mac 10.7.5 with Ubuntu 12.0.4 on one of the systems. 3 windows 7 VMs were placed on this system and subjected to the same testing load. No errors have occurred. 
     25 
     26The following configurations all encountered aio errors but did not have unresponsive VMs: 
     27 
     28* 10.6.5 with single Windows 7 VM. 
     29* 10.6.5 with three windows XP VMs. 
     30 
     31These have been operating fine with 
     32 
     33{{{ 
     34kern.aiomax=2048 
     35kern.aioprocmax=512 
     36kern.aiothreads=128 
     37}}} 
     38 
     39(previous post corrected for updated data.) 

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