Commit cc809ed8 authored Mar 18, 2019 by Jakub Wilk Committed by Jonathan Corbet Mar 25, 2019

Documentation: fix core_pattern max length



The buffer size for core_pattern is 128, but one character is used for
terminating null byte, so the actual limit is 127:

    # printf '%0999d' > /proc/sys/kernel/core_pattern
    # tr -d '\n' < /proc/sys/kernel/core_pattern | wc -c
    127

Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

parent 98348577

Documentation/sysctl/kernel.txt

+1 −1

Original line number	Diff line number	Diff line
		@@ -196,7 +196,7 @@ CAP_LAST_CAP from the kernel.
		core_pattern:

		core_pattern is used to specify a core dumpfile pattern name.
		. max length 128 characters; default value is "core"
		. max length 127 characters; default value is "core"
		. core_pattern is used as a pattern template for the output filename;
		certain string patterns (beginning with '%') are substituted with
		their actual values.

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