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-rw-r--r--src/xz/xz.119
1 files changed, 19 insertions, 0 deletions
diff --git a/src/xz/xz.1 b/src/xz/xz.1
index 9dffdc6f82be..a4aaa0027ecb 100644
--- a/src/xz/xz.1
+++ b/src/xz/xz.1
@@ -1005,6 +1005,25 @@ instead of
until the details have been decided.
.RE
.IP ""
+For 32-bit
+.BR xz
+there is a special case: if the
+.I limit
+would be over
+.BR "4020\ MiB" ,
+the
+.I limit
+is set to
+.BR "4020\ MiB" .
+(The values
+.B 0
+and
+.B max
+aren't affected by this.
+A similar feature doesn't exist for decompression.)
+This can be helpful when a 32-bit executable has access
+to 4\ GiB address space while hopefully doing no harm in other situations.
+.IP ""
See also the section
.BR "Memory usage" .
.TP