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.SH
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Process Structure
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.PP
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The Plan 9 file system server is made from
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an ancient version of the Plan 9 kernel.
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The kernel contains process control,
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synchronization,
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locks,
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and some memory
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allocation.
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The kernel has no user processes or
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virtual memory.
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.PP
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The structure of the file system server
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is a set of kernel processes
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synchronizing mostly through message passing.
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In
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.I fs64
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there are 27 processes of 11 types:
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.KS
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.TS
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center ;
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c l c
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n lf(CW) l .
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number	name	function
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_
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15	srv	Main file system server processes
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1	rah	Block read-ahead processes
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1	scp	Sync process
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1	wcp	WORM copy process
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1	con	Console process
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1	ilo	IL protocol process
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1	ilt	IL timer process
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2	ethi	Ethernet input process
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2	etho	Ethernet output process
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1	flo	Floppy disk process
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1	snt	sntp clock-synchronisation process
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.TE
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.KE