kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Visual Echo, could you please test the latest upstream kernel available
from the very top line at the top of the page (the release names are
irrelevant for testing, and please do not test the daily folder)
following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow
additional upstream developers to examine the issue.

If the test did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where XY and Z are numbers corresponding to the kernel version.

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results.

Thank you for your understanding.

** Tags added: needs-bisect regression-release

** Changed in: linux (Ubuntu)
       Status: Triaged => Incomplete

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https://bugs.launchpad.net/bugs/1426589

Title:
  tc class statistics rates are all zero after upgrade to Trusty

Status in iproute2 package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  After upgrading an Ubuntu server from Lucid -> Precise -> Trusty the command:
  tc -s class show dev eth0
  no longer shows rates for my classification bands. This worked in Lucid, but not sure if something changed, or if I need to set some system configuration to make it work again. My current non-working version is:

  $ dpkg -s iproute2
  Package: iproute2
  Status: install ok installed
  Priority: important
  Section: net
  Installed-Size: 1147
  Maintainer: Ubuntu Developers <ubuntu-devel-discuss@xxxxxxxxxxxxxxxx>
  Architecture: amd64
  Multi-Arch: foreign
  Version: 3.12.0-2
  Replaces: iproute
  Provides: arpd
  Depends: libc6 (>= 2.14), libdb5.3
  Recommends: libatm1 (>= 2.4.1-17~), libxtables10
  Suggests: iproute2-doc
  Conflicts: arpd, iproute (<< 20130000-1)
  Conffiles:
   /etc/iproute2/group 3aea2c0e0dd75e13a5f8f48f2936915f
   /etc/iproute2/ematch_map b91e7f9b26918449bade9573f8871d61
   /etc/iproute2/rt_realms 7137bdf40e8d58c87ac7e3bba503767f
   /etc/iproute2/rt_tables a1313318d6778fe6b8c680248ef5a463
   /etc/iproute2/rt_dsfield 4264d5c7c8298300185aa04e1a736934
   /etc/iproute2/rt_protos 95ce0b4b5b79f5a8a45941fb418a904c
   /etc/iproute2/rt_scopes 6298b8df09e9bda23ea7da49021ca457
  Description: networking and traffic control tools
   The iproute2 suite is a collection of utilities for networking and
   traffic control.
   .
   These tools communicate with the Linux kernel via the (rt)netlink
   interface, providing advanced features not available through the
   legacy net-tools commands 'ifconfig' and 'route'.
  Original-Maintainer: Debian iproute2 Maintainers <ah-iproute@xxxxxxxxxx>
  Homepage: http://www.linux-foundation.org/en/Net:Iproute2

  Here is the current output of the command, note that 'rate 0bit 0pps'
  is common to all classes, in Lucid this would produce non-zero values
  for active traffic:

  $ tc -s class show dev eth0
  class htb 2:1 root rate 4000Kbit ceil 10000Kbit burst 1600b cburst 1600b
   Sent 140162776 bytes 377793 pkt (dropped 0, overlimits 0 requeues 0)
   rate 0bit 0pps backlog 0b 0p requeues 0
   lended: 23022 borrowed: 0 giants: 0
   tokens: 46812 ctokens: 18725

  class htb 2:2 parent 2:1 leaf 3: prio 0 rate 1000Kbit ceil 4000Kbit burst 1600b cburst 1600b
   Sent 2021584 bytes 6949 pkt (dropped 0, overlimits 0 requeues 0)
   rate 0bit 0pps backlog 0b 0p requeues 0
   lended: 6505 borrowed: 189 giants: 0
   tokens: 187250 ctokens: 46812

  class htb 2:3 parent 2:1 leaf 4: prio 1 rate 2000Kbit ceil 4000Kbit burst 1600b cburst 1600b
   Sent 16695548 bytes 216855 pkt (dropped 0, overlimits 0 requeues 0)
   rate 0bit 0pps backlog 0b 0p requeues 0
   lended: 216846 borrowed: 9 giants: 0
   tokens: 94375 ctokens: 47187

  class htb 2:4 parent 2:1 leaf 5: prio 2 rate 1000Kbit ceil 4000Kbit burst 1600b cburst 1600b
   Sent 2963040 bytes 46619 pkt (dropped 0, overlimits 0 requeues 0)
   rate 0bit 0pps backlog 0b 0p requeues 0
   lended: 46619 borrowed: 0 giants: 0
   tokens: 193250 ctokens: 48312

  class htb 2:5 parent 2:1 leaf 6: prio 3 rate 1000Kbit ceil 4000Kbit burst 1600b cburst 1600b
   Sent 99996 bytes 745 pkt (dropped 0, overlimits 0 requeues 0)
   rate 0bit 0pps backlog 0b 0p requeues 0
   lended: 745 borrowed: 0 giants: 0
   tokens: 183000 ctokens: 45750

  class htb 2:6 parent 2:1 leaf 7: prio 4 rate 1000Kbit ceil 4000Kbit burst 1600b cburst 1600b
   Sent 80608262 bytes 79347 pkt (dropped 0, overlimits 0 requeues 0)
   rate 0bit 0pps backlog 0b 0p requeues 0
   lended: 50544 borrowed: 13902 giants: 0
   tokens: 190750 ctokens: 47687

  class htb 2:7 parent 2:1 leaf 8: prio 5 rate 1000Kbit ceil 4000Kbit burst 1600b cburst 1600b
   Sent 37606539 bytes 26129 pkt (dropped 0, overlimits 0 requeues 0)
   rate 0bit 0pps backlog 0b 0p requeues 0
   lended: 5617 borrowed: 8922 giants: 0
   tokens: -178485 ctokens: 24056

  class htb 2:8 parent 2:1 leaf 9: prio 6 rate 512000bit ceil 1000Kbit burst 1600b cburst 1600b
   Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
   rate 0bit 0pps backlog 0b 0p requeues 0
   lended: 0 borrowed: 0 giants: 0
   tokens: 390625 ctokens: 200000

  class htb 2:9 parent 2:1 leaf a: prio 7 rate 1000Kbit ceil 1000Kbit burst 1600b cburst 1600b
   Sent 167807 bytes 1149 pkt (dropped 0, overlimits 0 requeues 0)
   rate 0bit 0pps backlog 0b 0p requeues 0
   lended: 1149 borrowed: 0 giants: 0
   tokens: 189875 ctokens: 189875

  Did something change upstream to make the rates unavailable? Do I need
  to set some config to enable collection? Running the command as root
  does not make a difference. My kernel is:

  Linux srvr1 3.13.0-46-generic #75-Ubuntu SMP Tue Feb 10 15:24:04 UTC
  2015 x86_64 x86_64 x86_64 GNU/Linux

  Thank you!

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