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From Maciej Miklas <mac.mik...@googlemail.com>
Subject Re: Cassandra - crash with “free() invalid pointer”
Date Mon, 26 Mar 2012 07:30:51 GMT
thanks - I will try it

On Thu, Mar 22, 2012 at 10:15 PM, Ben Coverston
<ben.coverston@datastax.com>wrote:

> 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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