mirror of https://github.com/mkerrisk/man-pages
shmget.2: Rewrite description of SHMMNI default value
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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.\" Language and formatting clean-ups
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.\" Language and formatting clean-ups
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.\" Added notes on /proc files
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.\" Added notes on /proc files
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.\"
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.\"
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.TH SHMGET 2 2013-04-19 "Linux" "Linux Programmer's Manual"
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.TH SHMGET 2 2014-04-17 "Linux" "Linux Programmer's Manual"
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.SH NAME
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.SH NAME
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shmget \- allocates a System V shared memory segment
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shmget \- allocates a System V shared memory segment
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.SH SYNOPSIS
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.SH SYNOPSIS
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@ -289,8 +289,10 @@ dependent (currently 1 byte, though
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is the effective minimum size).
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is the effective minimum size).
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.TP
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.TP
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.B SHMMNI
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.B SHMMNI
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System wide maximum number of shared memory segments: implementation
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System wide maximum number of shared memory segments.
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dependent (currently 4096, was 128 before Linux 2.3.99).
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In Linux 2.2, the default value for this limit was 128;
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since Linux 2.4, the default value is 4096.
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On Linux, this limit can be read and modified via
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On Linux, this limit can be read and modified via
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.IR /proc/sys/kernel/shmmni .
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.IR /proc/sys/kernel/shmmni .
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.\" Kernels between 2.4.x and 2.6.8 had an off-by-one error that meant
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.\" Kernels between 2.4.x and 2.6.8 had an off-by-one error that meant
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