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-rw-r--r--doc/guix.texi6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 42e62d4648..7bc10dc566 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -3084,6 +3084,12 @@ Manual}). Pseudo-terminals are used by terminal emulators such as
@command{xterm}.
@end defvr
+@defvr {Scheme Variable} %shared-memory-file-system
+This file system is mounted as @file{/dev/shm} and is used to support
+memory sharing across processes (@pxref{Memory-mapped I/O,
+@code{shm_open},, libc, The GNU C Library Reference Manual}).
+@end defvr
+
@defvr {Scheme Variable} %binary-format-file-system
The @code{binfmt_misc} file system, which allows handling of arbitrary
executable file types to be delegated to user space. This requires the