[Bug manual/23015] New: MALLOC_MMAP_PERTURB_ doesn't seem likely to be the environment variable controlling M_PERTURB

["martin.dorey at hds dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=23015

            Bug ID: 23015
           Summary: MALLOC_MMAP_PERTURB_ doesn't seem likely to be the
                    environment variable controlling M_PERTURB
           Product: glibc
           Version: unspecified
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: manual
          Assignee: unassigned at sourceware dot org
          Reporter: martin.dorey at hds dot com
                CC: mtk.manpages at gmail dot com
  Target Milestone: ---

https://www.gnu.org/software/libc/manual/html_node/Malloc-Tunable-Parameters.html#Malloc-Tunable-Parameters
says:

> M_PERTURB
...
> This parameter can also be set for the process at startup by setting the environment variable MALLOC_MMAP_PERTURB_ to the desired value.

I think the "MMAP_" there wants removing.

https://www.gnu.org/software/libc/manual/html_node/Memory-Allocation-Tunables.html
has it right.

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