AW: [11u] java/nio/channels/AsynchronousFileChannel/Basic.java crashes on Windows x64

[Doerr, Martin]

Hi Brian,

thanks a lot!

It may be difficult to reproduce. Maybe a slow file system helps (like NFS).
Just let us know if you have questions.

Best regards,
Martin


Von: Brian Stafford <Brian.Stafford at microsoft.com>
Datum: Dienstag, 15. Juni 2021 um 01:20
An: jdk-updates-dev at openjdk.java.net <jdk-updates-dev at openjdk.java.net>, core-libs-dev at openjdk.java.net <core-libs-dev at openjdk.java.net>, Doerr, Martin <martin.doerr at sap.com>
Cc: Reka Kovacs <rekakovacs at microsoft.com>, Aditya Mandaleeka <adityam at microsoft.com>, Monica Beckwith <Monica.Beckwith at microsoft.com>
Betreff: RE: [11u] java/nio/channels/AsynchronousFileChannel/Basic.java crashes on Windows x64
Hi Martin,

We haven’t encountered this yet, to my knowledge, but we’ll see if we can reproduce it during our next sprint.

Thanks,
Brian Stafford



From: Doerr, Martin <martin.doerr at sap.com<mailto:martin.doerr at sap.com>>
Sent: Monday, June 14, 2021 3:17 AM
To: jdk-updates-dev at openjdk.java.net<mailto:jdk-updates-dev at openjdk.java.net>; core-libs-dev at openjdk.java.net<mailto:core-libs-dev at openjdk.java.net>; Reka Kovacs <rekakovacs at microsoft.com<mailto:rekakovacs at microsoft.com>>; Aditya Mandaleeka <adityam at microsoft.com<mailto:adityam at microsoft.com>>; Monica Beckwith <Monica.Beckwith at microsoft.com<mailto:Monica.Beckwith at microsoft.com>>
Subject: [11u] java/nio/channels/AsynchronousFileChannel/Basic.java crashes on Windows x64

Hi,

we observe crashes in jdk 11.0.12 on Windows:
https://bugs.openjdk.java.net/browse/JDK-8267440<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugs.openjdk.java.net%2Fbrowse%2FJDK-8267440&data=04%7C01%7CBrian.Stafford%40microsoft.com%7Cc92386856da54294151b08d92f715f84%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637592986257024831%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=LSmKaskfTKf5JUqWSt0dVxhW9BuRY86bdn1VW3j7wqI%3D&reserved=0>

I haven’t found any backport which looks like obviously causing it.

We had different theories which include:

  *   Antivirus tool which keeps the test file open.
  *   Error in handling of OVERLAPPED structures.

I was hoping that JDK-8184157<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugs.openjdk.java.net%2Fbrowse%2FJDK-8184157&data=04%7C01%7CBrian.Stafford%40microsoft.com%7Cc92386856da54294151b08d92f715f84%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637592986257034811%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=%2F3ZDJqKinnl6jkv%2BoGeoEY9MyumsxqkG1h7yJAYbUo4%3D&reserved=0> would fix it, but it doesn’t. Maybe it is incomplete?

Did anybody else notice such crashes?
Any idea?

Best regards,
Martin