On Tue, Feb 12, 2019 at 08:13:11PM -0800, Mark D Rustad wrote: > On Feb 9, 2019, at 12:13 AM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > > On Fri, Feb 08, 2019 at 08:44:32PM -0800, Mark D Rustad wrote: > > > On Feb 8, 2019, at 2:54 AM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > > > > > > diff --git a/Documentation/networking/ip-sysctl.txt > > > > b/Documentation/networking/ip-sysctl.txt > > > > index 2ea4c45cf1c8..7c229f59016f 100644 > > > > --- a/Documentation/networking/ip-sysctl.txt > > > > +++ b/Documentation/networking/ip-sysctl.txt > > > > @@ -112,14 +112,11 @@ min_adv_mss - INTEGER > > > > > > > > IP Fragmentation: > > > > > > > > -ipfrag_high_thresh - INTEGER > > > > - Maximum memory used to reassemble IP fragments. When > > > > - ipfrag_high_thresh bytes of memory is allocated for this purpose, > > > > - the fragment handler will toss packets until ipfrag_low_thresh > > > > - is reached. This also serves as a maximum limit to namespaces > > > > - different from the initial one. > > > > - > > > > -ipfrag_low_thresh - INTEGER > > > > +ipfrag_high_thresh - LONG INTEGER > > > > + Maximum memory used to reassemble IP fragments. > > > > + > > > > +ipfrag_low_thresh - LONG INTEGER > > > > + (Obsolete since linux-4.17) > > > > > > It seems very strange to say that it is obsolete since 4.17 in a 4.4 > > > kernel. > > > > 4.17 is a point in time :) > > Of course I understand, but some random non-kernel-developer tuning a kernel > may be pretty puzzled. I don't know right off the top something brief that > would be more generally meaningful, but maybe someone might. What does > obsolete mean in this context? It exists but does nothing? It exists and > does something but will eventually go away? Fair enough, want to provide a patch with the real kernel version this happened in? thanks, greg k-h