[Debian-med-packaging] Bug#977021: bus errors on armhf running on a 64bit kernel

[Bernd Rinn]

Dear Pierre,

No, I've not yet seen this bus error. I can see two changes to my test 
setup:

- JDK 11 instead of JDK 8
- 64bit OS instead of 32 bit OS

The 64bit platoform is more likely to be the change that uncovers this 
bug. Which hardware did you get the error on?

All the best,
Bernd

On 12/10/20 5:45 PM, Pierre Gruet wrote:
> Control: forwarded -1 brinn at ethz.ch
> 
> 
> Dear Bernd,
> 
> In Debian we have received a bug report you may find below: there seems 
> to be an unaligned memory access in (seemingly) the JNI part of sis-base 
> version 18.09, leading to a failure on the architecture armhf running on 
> a 64bit kernel.
> 
> Have you already met this issue and do you see how it might be fixed?
> 
> Thanks a lot,
> Pierre Gruet
> 
> 
> On Thu, 10 Dec 2020 07:15:24 +0100 Matthias Klose <doko at debian.org> wrote:
>  > Package: src:libsis-base-java
>  > Version: 18.09~pre1+git20180928.45fbd31+dfsg-2
>  > Severity: important
>  > Tags: sid bullseye
>  >
>  > building libsis-base-java (or running the jni) leads to a bus error, 
> usually
>  > caused by unaligned memory accesses.
>  >
>  > [...]
>  > LC_ALL=C java -Djava.library.path=source/c/.libs -classpath 
> sis-base-test.jar
>  > ch.systemsx.cisd.base.AllTests
>  > Application: base
>  > Version: UNKNOWN*
>  > Java VM: OpenJDK Server VM (v11.0.9.1+1-Debian-1)
>  > CPU Architecture: arm
>  > OS: Linux (v4.15.0-126-generic)
>  > Test class: NativeDataTests
>  >
>  > Running testFloatToByteNonNativeByteOrderPartialOutputArray
>  > Running testIntToByteToInt
>  >  Arguments: [0, 0]
>  >  Arguments: [0, 1]
>  > #
>  > # A fatal error has been detected by the Java Runtime Environment:
>  > #
>  > #  SIGBUS (0x7) at pc=0xf74b1d1c, pid=10186, tid=10187

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