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Documentation: fix core_pattern max length

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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>
This commit is contained in:
Jakub Wilk 2019-03-18 18:34:21 +01:00 • committed by Jonathan Corbet
commit cc809ed885
1 changed files with 1 additions and 1 deletions
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2
Documentation/sysctl/kernel.txt
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@ -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.