X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=doc%2Fdev%2Fsystem-file-format.texi;h=7b0eff9f79823f0bb623e10d2f1da8c22922eff7;hb=8080fdb87f96b96ae07ef902e7912a23beea49c7;hp=6276b6de859f999f376e9ab139a80bb8ab3e4dd4;hpb=e24089bbe924045c7b98e4bbcc0dc1c4b8703429;p=pspp

diff --git a/doc/dev/system-file-format.texi b/doc/dev/system-file-format.texi
index 6276b6de85..7b0eff9f79 100644
--- a/doc/dev/system-file-format.texi
+++ b/doc/dev/system-file-format.texi
@@ -391,6 +391,11 @@ Format types are defined as follows:
 @end multitable
 @end quotation
 
+A few system files have been observed in the wild with invalid
+@code{write} fields, in particular with value 0.  Readers should
+probably treat invalid @code{print} or @code{write} fields as some
+default format.
+
 @node Value Labels Records
 @section Value Labels Records