[Bugme-new] [Bug 12425] New: Add 64bit interface for netlink counters
bugme-daemon at bugzilla.kernel.org
bugme-daemon at bugzilla.kernel.org
Sun Jan 11 03:06:29 PST 2009
http://bugzilla.kernel.org/show_bug.cgi?id=12425
Summary: Add 64bit interface for netlink counters
Product: Networking
Version: 2.5
KernelVersion: 2.6.26
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
AssignedTo: acme at ghostprotocols.net
ReportedBy: norman at rasmussen.co.za
This is more of a feature request tracker, than a bug, but here we go:
Problem Description:
Currently the netlink statistics are limited to 32bit, but there have been
varied requests over the last few years to add a 64bit interface for
statistics.
Additionally it would be useful if the 64bit counters would work correctly on
both 32bit kernels (with magic locking required to make the double 32bit value
increment safely), and 64bit kernels (easy).
refs:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=199054
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=487543
http://marc.info/?l=linux-netdev&m=118415534518953
http://kerneltrap.org/mailarchive/linux-netdev/2008/2/13/844984/thread
Steps to reproduce:
Transfer more than 4gb on a 32bit machine. Observe that ifconfig, iproute2 and
pppstats show interface stats as < 4gb.
(note that the netfilter team already have 64bit counters on their rules, so
this is not impractical)
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