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Date: Wed, 7 Sep 2011 18:22:41 -0700
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 <CAAnh3_8tZOkE=pF4LH=Faod9W=+vXNHi+Jv7izO5vxqAsJ3OKA@mail.gmail.com>
Subject: Re: SIGSEGV during compaction?
From: Yang <teddyyyy123@gmail.com>
To: user@cassandra.apache.org
Content-Type: text/plain; charset=ISO-8859-1

some info in the debug file that JVM exported:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00002aaaab37cbfa, pid=7236, tid=1179806016
#
# JRE version: 6.0_27-b07
# Java VM: Java HotSpot(TM) 64-Bit Server VM (20.2-b06 mixed mode
linux-amd64 compressed oops)
# Problematic frame:
# J  com.cgm.whisky.filter.WithinLimitIpFrequencyCap.isValid(Lorg/apache/avro/specific/SpecificRecord;)Lcom/cgm/whisky/EventsFilter$ValidityCode;
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#

---------------  T H R E A D  ---------------

Current thread (0x00002aaab80e2800):  JavaThread "pool-3-thread-8"
[_thread_in_Java, id=7669,
stack(0x0000000046426000,0x0000000046527000)]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR),
si_addr=0x00002aaabc000000

Registers:
RAX=0x00000007914355e8, RBX=0x000000000000058a,
RCX=0x0000000791461b38, RDX=0x0000000000000000
RSP=0x00000000465259f0, RBP=0x00000000f222b894,
RSI=0x0000000791433f20, RDI=0x00002aaaab37ca60
R8 =0x00000000d0931f61, R9 =0x00000000f2286ab2,
R10=0x0000000000000000, R11=0x00002aaabc000000
R12=0x0000000000000000, R13=0x00000000465259f0,
R14=0x0000000000000002, R15=0x00002aaab80e2800
RIP=0x00002aaaab37cbfa, EFLAGS=0x0000000000010202,
CSGSFS=0x0100000000000033, ERR=0x0000000000000004
  TRAPNO=0x000000000000000e

Top of Stack: (sp=0x00000000465259f0)
0x00000000465259f0:   000000068a828dc8 0000000791433f20
0x0000000046525a00:   000000079145ee60 000005890000058a


On Wed, Sep 7, 2011 at 6:21 PM, Yang <teddyyyy123@gmail.com> wrote:
> I started compaction using nodetool,
> then always reproducibly, I get a SEGV in a code that I added to the
> Cassandra code, which simply calls get_slice().
>
> have you seen SEGV associated with compaction? anyone could suggest a
> route on how to debug this?
>
> I filed a bug on sun website, right now the only possible approach I
> can try is to use another JDK
>
>
> Thanks
> Yang
>