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.staff...@microsoft.com>
Datum: Dienstag, 15. Juni 2021 um 01:20
An: jdk-updates-...@openjdk.java.net <jdk-updates-...@openjdk.java.net>, 
core-libs-dev@openjdk.java.net <core-libs-dev@openjdk.java.net>, Doerr, Martin 
<martin.do...@sap.com>
Cc: Reka Kovacs <rekakov...@microsoft.com>, Aditya Mandaleeka 
<adit...@microsoft.com>, Monica Beckwith <monica.beckw...@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.do...@sap.com<mailto:martin.do...@sap.com>>
Sent: Monday, June 14, 2021 3:17 AM
To: jdk-updates-...@openjdk.java.net<mailto:jdk-updates-...@openjdk.java.net>; 
core-libs-dev@openjdk.java.net<mailto:core-libs-dev@openjdk.java.net>; Reka 
Kovacs <rekakov...@microsoft.com<mailto:rekakov...@microsoft.com>>; Aditya 
Mandaleeka <adit...@microsoft.com<mailto:adit...@microsoft.com>>; Monica 
Beckwith <monica.beckw...@microsoft.com<mailto:monica.beckw...@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

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