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doc: Add index entries and better documentation link for Linux OOM

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Lines changed: 13 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1245,6 +1245,18 @@ default:\`
`1245`	`1245`	`<sect2 id="linux-memory-overcommit">`
`1246`	`1246`	`<title>Linux Memory Overcommit</title>`
`1247`	`1247`
	`1248`	`+ <indexterm>`
	`1249`	`+ <primary>memory overcommit</primary>`
	`1250`	`+ </indexterm>`
	`1251`	`+`
	`1252`	`+ <indexterm>`
	`1253`	`+ <primary>OOM</primary>`
	`1254`	`+ </indexterm>`
	`1255`	`+`
	`1256`	`+ <indexterm>`
	`1257`	`+ <primary>overcommit</primary>`
	`1258`	`+ </indexterm>`
	`1259`	`+`
`1248`	`1260`	`<para>`
`1249`	`1261`	`In Linux 2.4 and later, the default virtual memory behavior is not`
`1250`	`1262`	`optimal for <productname>PostgreSQL</productname>. Because of the`
`@@ -1306,7 +1318,7 @@ sysctl -w vm.overcommit_memory=2`
`1306`	`1318`	`or placing an equivalent entry in <filename>/etc/sysctl.conf</>.`
`1307`	`1319`	`You might also wish to modify the related setting`
`1308`	`1320`	`<varname>vm.overcommit_ratio</>. For details see the kernel documentation`
`1309`		`- file <filename>Documentation/vm/overcommit-accounting</>.`
	`1321`	`+ file <ulink url="https://www.kernel.org/doc/Documentation/vm/overcommit-accounting"></ulink>.`
`1310`	`1322`	`</para>`
`1311`	`1323`
`1312`	`1324`	`<para>`

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