netdev - Fw: [Bug 202297] New: No longer able to add multiple tc filters. RTNETLINK answers: No space left on device

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Date:   Wed, 16 Jan 2019 10:01:34 -0800
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     netdev@...r.kernel.org
Subject: Fw: [Bug 202297] New: No longer able to add multiple tc filters.
 RTNETLINK answers: No space left on device

Is this still present in net-next?

Begin forwarded message:

Date: Tue, 15 Jan 2019 19:20:22 +0000
From: bugzilla-daemon@...zilla.kernel.org
To: stephen@...workplumber.org
Subject: [Bug 202297] New: No longer able to add multiple tc filters. RTNETLINK answers: No space left on device

https://bugzilla.kernel.org/show_bug.cgi?id=202297

            Bug ID: 202297
           Summary: No longer able to add multiple tc filters. RTNETLINK
                    answers: No space left on device
           Product: Networking
           Version: 2.5
    Kernel Version: 4.20.2
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
          Assignee: stephen@...workplumber.org
          Reporter: kbocharnikov@...acast.com
        Regression: No

This is working in 4.5.5 and is not working in 4.18.12 onward. Not sure about
the versions in between:

example: 
# tc filter add dev ipenc0 parent 1:0 handle ::102 protocol ip prio 1 u32 match
ip dst 224.44.44.4/32 flowid 1:5

//successfull, now every other addition will not be:

# tc filter add dev ipenc0 parent 2:0 handle ::102 protocol ip prio 1 u32 match
ip dst 224.44.44.4/32 flowid 2:102
RTNETLINK answers: No space left on device
We have an error talking to the kernel

This appears to be almost the same bug that was supposedly fixed, but does not
appear to be:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797669

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