Ipv6 tests still fail on Aix machines #2516

Haroon-Khel · 2022-03-28T12:54:21Z

Some ipv6 tests continue to fail on all of our aix machines. The tests being:

java/net/DatagramSocket/DatagramSocketExample.java.DatagramSocketExample
java/net/DatagramSocket/DatagramSocketMulticasting.java.DatagramSocketMulticasting
java/net/MulticastSocket/SetOutgoingIf.java.SetOutgoingIf
java/net/MulticastSocket/JoinLeave.java.JoinLeave
java/net/MulticastSocket/Promiscuous.java.Promiscuous
java/nio/channels/DatagramChannel/AdaptorMulticasting.java.AdaptorMulticasting

Fail with

19:47:42  STDOUT:
19:47:42  Test family=INET, multicast group=/225.4.5.6, interface=en1
19:47:42  STDERR:
19:47:42  java.lang.IllegalArgumentException: IPv6 socket cannot join IPv4 multicast group
19:47:42  	at java.base/sun.nio.ch.DatagramChannelImpl.innerJoin(DatagramChannelImpl.java:1473)

It is known upstream that these tests will fail if ipv6 is not correctly configured https://bugs.openjdk.java.net/browse/JDK-8278122

These tests belong to the jdk_net test target. Most recent failure was during the jdk18+36 release https://ci.adoptopenjdk.net/job/Test_openjdk18_hs_extended.openjdk_ppc64_aix_testList_0/24/testReport/

The text was updated successfully, but these errors were encountered:

Haroon-Khel · 2022-03-28T12:54:53Z

Ping @aixtools

aixtools · 2022-03-29T10:13:04Z

Most of the issues above are multicast related.
One (or two) may be related to buffering.
I'll make a few manual changes on adopt07 and adopt08 - for the buffering. There are 10 failures listed now - maybe that will bring it down to 9 or 8.

aixtools · 2022-03-30T17:18:04Z

Trying to get the failing tests narrowed down, trying TARGET: jdk_net now (jdk_net_0 didn't seem to do anything).

aixtools · 2022-04-02T10:50:36Z

This is the failed test URL - FOR RESTARTS! Change the JDK version for the different tests : from Grinder #4245

aixtools · 2022-04-02T11:04:36Z

I've been reviewing the code - and it seems the core Implementation, by default, switches - read decides, to use IPv6 by default, if it is available. And the default setup does not permit IPv6 as a default for IPv4 multi-casting.
Note also: the link above is a duplicate. The active link is: JDK-8272476. I'll be replying there as well.
UPDATE: As I don't have AUTHOR status (yet) with bugs.openjdk.java.net - active participation is slowed.

aixtools · 2022-04-03T13:53:35Z

For the moment: to look for delta/regression

aixtools · 2022-04-03T14:31:49Z

I'll need some assistance with setting up a way to test changes in openjdk itself, e.g., a change in java.base/sun.nio.ch.DatagramChannelImpl.innerJoin(DatagramChannelImpl.java (that is not part of the aqu-tests).

update: looks like I am needing to learn a LOT of java programming. Sigh, Taking time...

aixtools · 2022-04-16T11:51:45Z

Sigh: Thought I had saved the parambuild URL - but sadly not.

From testing on the java8: when two interfaces are defined - it fails on the interface with no (default) route. When that interface is detached, the 'JoinLeave' test succeeds.

My assumption is that the test assumptions are not correct for AIX. Will re-run base to get 'failed-only' test report back.
iirc I tried to save one of the grinder results so it would not be deleted (asap), but I do not recall finding the option to save the grinder results.

aixtools · 2022-04-16T12:01:09Z

Running https://ci.adoptopenjdk.net/job/Grinder/4474/ (adopt-06) with en0 detached, i.e., only one interface defined, to see how it affects results.
Running https://ci.adoptopenjdk.net/job/Grinder/4475/ in parallel - with two interfaces active.
Update: 4474 - no failures, 4475: 4 failures reported (same as 4274)
Update: Running as JDK18 with only one interface - for comparison with 4270 (new: https://ci.adoptopenjdk.net/job/Grinder/4476/ and as 4477 with a change I thought would improve the results - instead - one less result
4476 results
Test Result (16 failures / +12)

com/sun/net/httpserver/simpleserver/StressDirListings.java.StressDirListings
com/sun/net/httpserver/simpleserver/StressDirListings.java.StressDirListings
java/net/DatagramSocket/DatagramSocketExample.java.DatagramSocketExample
java/net/DatagramSocket/DatagramSocketExample.java.DatagramSocketExample
java/net/DatagramSocket/DatagramSocketMulticasting.java.DatagramSocketMulticasting
java/net/DatagramSocket/DatagramSocketMulticasting.java.DatagramSocketMulticasting
java/net/DatagramSocket/SendReceiveMaxSize.java.SendReceiveMaxSize
java/net/DatagramSocket/SendReceiveMaxSize.java.SendReceiveMaxSize
java/net/MulticastSocket/MulticastAddresses.java.MulticastAddresses
java/net/MulticastSocket/MulticastAddresses.java.MulticastAddresses
java/net/MulticastSocket/Promiscuous.java.Promiscuous
java/net/MulticastSocket/Promiscuous.java.Promiscuous
java/net/MulticastSocket/Test.java.Test
java/net/MulticastSocket/Test.java.Test
java/net/MulticastSocket/JoinLeave.java.JoinLeave
java/net/MulticastSocket/JoinLeave.java.JoinLeave
4477 results
Test Result (17 failures / +1)

java/net/MulticastSocket/SetOutgoingIf.java.SetOutgoingIf
java/net/MulticastSocket/SetOutgoingIf.java.SetOutgoingIf
java/net/Socket/asyncClose/Race.java.Race
com/sun/net/httpserver/simpleserver/StressDirListings.java.StressDirListings
com/sun/net/httpserver/simpleserver/StressDirListings.java.StressDirListings
java/net/DatagramSocket/DatagramSocketExample.java.DatagramSocketExample
java/net/DatagramSocket/DatagramSocketExample.java.DatagramSocketExample
java/net/DatagramSocket/DatagramSocketMulticasting.java.DatagramSocketMulticasting
java/net/DatagramSocket/DatagramSocketMulticasting.java.DatagramSocketMulticasting
java/net/MulticastSocket/MulticastAddresses.java.MulticastAddresses
java/net/MulticastSocket/MulticastAddresses.java.MulticastAddresses
java/net/MulticastSocket/Promiscuous.java.Promiscuous
java/net/MulticastSocket/Promiscuous.java.Promiscuous
java/net/MulticastSocket/Test.java.Test
java/net/MulticastSocket/Test.java.Test
java/net/MulticastSocket/JoinLeave.java.JoinLeave
java/net/MulticastSocket/JoinLeave.java.JoinLeave

aixtools · 2022-04-22T11:32:11Z

Final rerun: one interface defined (adopt06) - https://ci.adoptopenjdk.net/job/Grinder/4511/
Test Result (16 failures / +16)

com/sun/net/httpserver/simpleserver/StressDirListings.java.StressDirListings
com/sun/net/httpserver/simpleserver/StressDirListings.java.StressDirListings
java/net/DatagramSocket/DatagramSocketExample.java.DatagramSocketExample
java/net/DatagramSocket/DatagramSocketExample.java.DatagramSocketExample
java/net/DatagramSocket/DatagramSocketMulticasting.java.DatagramSocketMulticasting
java/net/DatagramSocket/DatagramSocketMulticasting.java.DatagramSocketMulticasting
java/net/DatagramSocket/SendReceiveMaxSize.java.SendReceiveMaxSize
java/net/DatagramSocket/SendReceiveMaxSize.java.SendReceiveMaxSize
java/net/MulticastSocket/JoinLeave.java.JoinLeave
java/net/MulticastSocket/JoinLeave.java.JoinLeave
java/net/MulticastSocket/MulticastAddresses.java.MulticastAddresses
java/net/MulticastSocket/MulticastAddresses.java.MulticastAddresses
java/net/MulticastSocket/Promiscuous.java.Promiscuous
java/net/MulticastSocket/Promiscuous.java.Promiscuous
java/net/MulticastSocket/Test.java.Test
java/net/MulticastSocket/Test.java.Test

aixtools · 2022-04-29T09:22:56Z

Tried a lot of different settings on AIX but still get nearly the same test failures. Have to check if the errors themselves are the same though. (19 now, rather than 16).
Test Result (19 failures / +13)

aixtools · 2023-07-21T10:07:54Z

@Haroon-Khel : can you initiate this test again. I have forgotten how to regenerate from the data above.

aixtools · 2023-07-21T10:15:20Z

fyi: this test fails for two reasons:

a) the test incorrectly believes AIX is running an active world IPv6 address. By default the IPv6 stack is active - for lo0 and address ::1
b) even for ::1 (and 127.0.0.1) AIX acts differently than Linux and others.
c) when there is an active IPv6 (WAN) - the address is on en1 - and the test doesn't seem to find it.

My recommendation is to put this test on the 'skip' list - as it will take forever if upstream is fast. Never is the more likely stream for getting this fixed upstream.

aixtools · 2023-08-23T13:40:27Z

Again, the tests - as written, do not account for the way that AIX reacts to NULL (rather than empty string ""); and, they assume a full IPv6 stack active when ::1 is available - which is not the case.

Since 1999 (when AIX 4.3 came out - if not earlier (AIX 4.2 might have already had it) - lo0 has had IPv6 address ::1 active by default - while the physical and later virtual NIC do not have any IPv6 address (the so-called local IPv6 with prefix fe00:). Neither has AIX IPv6 made (much, if any) use of the %` syntax for multiple addresses with a common base address. Rather, each interface (en0. en1) has it's own unique address.

Further, at OSUOSL the only other interface to have an IPv6 address, if there is one, is en1 - while the tests (again) presume it is ent0 and en0.

imho: until behavior is studied in detail - skip the tests failing. iirc, the failure comes from a common routine in all the tests that fails before any actual new test component gets tried. Been 18+ months since I studied this. Responses from upstream were just too slow to get anything finished. Too many layers protecting their forums from spam posters. Or something like that.

Haroon-Khel added ansible os:aix Infra Machine issue and removed ansible labels Mar 28, 2022

smlambert mentioned this issue Apr 22, 2022

April CPU - jdk-17.0.3 Pipeline 348 Triage adoptium/aqa-tests#3594

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April CPU - JDK8u332 Pipeline 2087 Triage adoptium/aqa-tests#3603

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Problem machines for release #2662

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Ipv6 tests still fail on Aix machines #2516

Ipv6 tests still fail on Aix machines #2516

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Ipv6 tests still fail on Aix machines #2516

Ipv6 tests still fail on Aix machines #2516

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