JVM Crash on armv7

[Daniel McGreal]

Hi Severin,
Thanks for your reply. I don’t know about the Shark variant I’m afraid, as this is an off-the-shelf device over which we don’t have much control. Is there a way for me to find out for sure?
I did forget the logs, but then I sent them in a second message immediately afterwards so not sure where they went, either way they’re downloadable at http://djmfiles.s3.amazonaws.com/OpenJDK-Singal11.zip .

In trying to reproduce this crash with simpler code, I have created the following code, which provokes a crash too, but this time a Signal 4. Reproduction code and logs are at http://djmfiles.s3.amazonaws.com/OpenJDK-Signal4-Logs.zip and http://djmfiles.s3.amazonaws.com/OpenJDK-Signal4.zip.

Very best, Dan.


On 2 May 2014, at 10:32, Severin Gehwolf <sgehwolf at redhat.com> wrote:

> Hi Dan,
> 
> On Thu, 2014-05-01 at 10:55 +0100, Daniel McGreal wrote:
>> Hi,
>> We write Java software thats run in embedded devices. On one such
>> device, our application reliably crashes after several hours of
>> operation. The typical activity of the application is forwarding
>> responses from the device (over a perpetual TCP connection) into an
>> AMQP exchange (again, perpetual TCP connection) and does not vary
>> greatly over time.
>> 
>> Here are some details of the crash and its environment:
>> 
>> #
>> # A fatal error has been detected by the Java Runtime Environment:
>> #
>> #  Internal Error (os_linux_zero.cpp:270), pid=24829, tid=1354962032
>> #  fatal error: caught unhandled signal 11
>> #
>> # JRE version: 6.0_24-b24
>> # Java VM: OpenJDK Zero VM (20.0-b12 mixed mode linux-arm )
> 
> This seems to indicate that you are using the shark variant of zero. Can
> you confirm?
> 
>> # Derivative: IcedTea6 1.12pre
>> # Distribution: Built for 
>> # If you would like to submit a bug report, please include
>> # instructions how to reproduce the bug and visit:
>> #   http://icedtea.classpath.org/bugzilla
>> #
>> 
>> System details are:
>> OS:Linux
>> uname:Linux 2.6.32.8.ti-omap3-am3517-evm #55 PREEMPT Mon Mar 3 17:00:29 IST 2014 armv7l
>> libc:glibc 2.11.1 NPTL 2.11.1 
>> rlimit: STACK 8192k, CORE 2048k, NPROC 1996, NOFILE 1024, AS infinity
>> load average:0.00 0.00 0.00
>> 
>> Three full crash reports are attached reports are included. Any help
>> with this issue would be greatly appreciated.
> 
> It appears the mailing list software scrubbed your attachments or you
> forgot to attach them. Could you perhaps upload the logs somewhere?
> 
> Cheers,
> Severin

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