Re: Unexpected JVM crash, assistance requested

[Matt Pryor <pryor@xxxxxxxxxxxxxxxxxxxxxxxxxx>]

Hi again Steve

> From the customer:

QJVACMDSRV authorities are *PUBLIC *USE.  I verified the TLXDRIVER
authorities match what you noted below.

Best wishes
Matt

On Thu, 15 Nov 2018 at 09:45, Matt Pryor <pryor@xxxxxxxxxxxxxxxxxxxxxxxxxx>
wrote:

> Hi Steve
>
> Thanks for your reply.
>
> Java is started via a CLP, this is the section that calls it:
>
> JAVA       +
>             CLASS('com.internationalpresence.impscloudg+
>             ateway.CloudQ') PARM(&DRIVER &INTERNET +
>             &PRODLIB &CLDFLR &TYPE &ENV &HOSTIP +
>             &CLDSSL &LOGTYP) CLASSPATH(*ENVVAR) +
>             CHKPATH(*IGNORE) PROP((java.version &JVM) +
>             (java.awt.headless true) +
>             (os400.awt.native true) +
>             (com.ibm.cacheLocalHost true) +
>             (java.net.preferIPv4Stack &IP4) +
>             (java.net.preferIPv6Addresses &IP6)) +
>             OPTION(&OPT) OUTPUT(*PRINT)
>
> The program runs for several hours or days before the JVM crashes. We have
> a 2 gb dump file and also a java core text file which shows all the threat
> stack traces etc.
>
> All Java call stacks available show threads to either be in a wait state,
> or a sleep state, or a socket read or accept state with the exception of
> the following:
>
> 1)
> 4XESTACKTRACE                at
> com/ibm/misc/SignalDispatcher.waitForSignal(Native Method)
> 4XESTACKTRACE                at
> com/ibm/misc/SignalDispatcher.run(SignalDispatcher.java:73)
>
> 2)
> 4XESTACKTRACE                at
> com/ibm/tools/attach/target/IPC.waitSemaphore(Native Method)
> 4XESTACKTRACE                at
> com/ibm/tools/attach/target/CommonDirectory.waitSemaphore(CommonDirectory.java:251)
>
> 3)
> 4XESTACKTRACE                at
> com/ibm/lang/management/internal/MemoryNotificationThread.processNotificationLoop(Native
> Method)
> 4XESTACKTRACE                at
> com/ibm/lang/management/internal/MemoryNotificationThread.run(MemoryNotificationThread.java:185)
>
> In case it's any use to you I've uploaded the java core text file to
>
>
> http://www.international-presence.com/software/matt_transfer/javacore.20181104.102029.215708.0002.txt
>
> TLXDRIVER is the user profile that the CL program runs as, which should
> belong to *SYSOPR user group and have special authority for *ALLOBJ,
> *JOBCTL, *SECADM, *SPLCTL
>
> I will ask the customer to check on authority for QJVACMDSRV *pgm.
>
> Many thanks
> Matt
>
>
>
>
> >    1. Re: Unexpected JVM crash, assistance requested
> >       (Steve Hinrichs via JAVA400-L)
> >
> >
> > ----------------------------------------------------------------------
> >
> > message: 1
> > date: Tue, 13 Nov 2018 19:09:50 +0000
> > from: Steve Hinrichs via JAVA400-L <java400-l@xxxxxxxxxxxx>
> > subject: Re: Unexpected JVM crash, assistance requested
> >
> > How is the java process started, from RPG, RUNJVA, QSH?
> > Is their any call stack or is it failing right away?
> > What is the class/method being called?
> > What authority does the user have that is running the java process, maybe
> > try QSECOFR.
> >
> > I would check authority and existence of QJAVA/QJVACMDSRV *pgm.
> > What is TLXDRIVER?  A user profile?  Searching for TLXDRIVER I find 2
> > items related to user profiles.
> >
> > Steve