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From Ben Coverston <ben.covers...@datastax.com>
Subject Re: Cassandra - crash with “free() invalid pointer”
Date Thu, 22 Mar 2012 21:15:17 GMT
Use a version of the Java 6 runtime, Cassandra hasn't been tested at all
with the Java 7 runtime.

On Thu, Mar 22, 2012 at 1:27 PM, Benoit Perroud <benoit@noisette.ch> wrote:

> Sounds like a race condition in the off heap caching while calling
> Unsafe.free().
>
> Do you use cache ? What is your use case when you encounter this error
> ? Are you able to reproduce it ?
>
>
> 2012/3/22 Maciej Miklas <mac.miklas@googlemail.com>:
> > Hi *,
> >
> > My Cassandra installation runs on flowing system:
> >
> > Linux with Kernel 2.6.32.22
> > jna-3.3.0
> > Java 1.7.0-b147
> >
> > Sometimes we are getting following error:
> >
> > *** glibc detected *** /var/opt/java1.7/bin/java: free(): invalid
> pointer:
> > 0x00007f66088a6000 ***
> > ======= Backtrace: =========
> > /lib/libc.so.6[0x7f661d7099a8]
> > /lib/libc.so.6(cfree+0x76)[0x7f661d70bab6]
> > /lib64/ld-linux-x86-64.so.2(_dl_deallocate_tls+0x59)[0x7f661e02f349]
> > /lib/libpthread.so.0[0x7f661de09237]
> > /lib/libpthread.so.0[0x7f661de0931a]
> > /lib/libpthread.so.0[0x7f661de0a0bd]
> > /lib/libc.so.6(clone+0x6d)[0x7f661d76564d]
> > ======= Memory map: ========
> > 00400000-00401000 r-xp 00000000 68:07 537448203
> > /var/opt/jdk1.7.0/bin/java
> > 00600000-00601000 rw-p 00000000 68:07 537448203
> > /var/opt/jdk1.7.0/bin/java
> > 01bae000-01fd0000 rw-p 00000000 00:00 0
> > [heap]
> > 01fd0000-15798000 rw-p 00000000 00:00 0
> > [heap]
> > 40002000-40005000 ---p 00000000 00:00 0
> > 40005000-40023000 rw-p 00000000 00:00 0
> > 40030000-40033000 ---p 00000000 00:00 0
> > 40033000-40051000 rw-p 00000000 00:00 0
> >
> > Does anyone have similar problems? or maybe some hints?
> >
> > Thanks,
> > Maciej
>
>
>
> --
> sent from my Nokia 3210
>



-- 
Ben Coverston
DataStax -- The Apache Cassandra Company

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