my webserver suddenly crash

[Satria Bramana]

greetings..

my webhosting server suddenly crash and showing this in /var/log/messages :
    Apr  9 11:37:52 hosting kernel: swap_pager_getswapspace(10): failed

i'm using a monitoring software and i found that the usage of my swap space only about 1% of my total swap space at the time before my server crashed..
i couldn't think of anything that may caused this trouble..
can anyone help me?
thank you very much everybody..


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