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From Dawid Weiss <dawid.we...@gmail.com>
Subject Re: SIGSEGV when indexing documents.
Date Wed, 11 Jan 2012 09:06:20 GMT
Opps, yes, sorry -- I only quickly looked at the invocation line on
stack overflow and overlooked it. -Xms4g shouldn't make any
difference.

Dawid

On Wed, Jan 11, 2012 at 10:02 AM, Frank Moss <frankmoss1950@gmail.com> wrote:
> 4gb is the initial heap size. Are you  thinking about Xss?  I will try it
> as well as the rest of your suggestions and post back the results.
>
> Thanks.
>
>
> On Wed, Jan 11, 2012 at 9:56 AM, Dawid Weiss <dawid.weiss@gmail.com> wrote:
>
>> The dump you're getting indicates a sigserv in a garbage collection.
>> This isn't unlikely (there are bugs in there as well), but less likely
>> than a hardware error on your side... at least in my opinion. I would
>> experiment with the following:
>>
>> 1) do you really need a 4gb max stack? Seems weird to me.
>> 2) collect the dump from jrockit; is it something related to memory
>> collection? If so this would suggest memory issues again
>> 3) try ibm j9 and see if you can reproduce the problem. If so, again
>> -- I'd double check the hardware.
>> 4) collect more dumps from hotspot (same version) and compare them
>> against each other; is the problem recurring in the same place
>> (gc-related)? If so, then run with the -fastdebug VM (unfortunately
>> you'll probably need to build this one yourself these days) and make
>> the core dump available to gc mailing list folks, they'll be able to
>> investigate.
>>
>> Dawid
>>
>> On Wed, Jan 11, 2012 at 9:50 AM, Frank Moss <frankmoss1950@gmail.com>
>> wrote:
>> > Thanks for your quick reply.
>> >
>> > As I said, it happens with the latest version of VM, i.e, both
>> > "jdk1.6.0_30" and "jdk1.7.0_02"
>> >
>> > The memory is not an ECC one it seems.
>> >
>> > I have a kit of this (3*4GB * 2 = 24GB):
>> >
>> > http://www.kingston.com/datasheets/KHX1600C9S3K2_8GX.pdf
>> >
>> > On Wed, Jan 11, 2012 at 9:33 AM, Dawid Weiss <dawid.weiss@gmail.com>
>> wrote:
>> >
>> >> This is a fairly old VM you're running with, but if you get the same
>> >> error with jrockit then I would assume it's a hardware problem. Any
>> >> other software crashing? Do you have ECC-memory? Have you tried IBM's
>> >> J9 VM as well maybe?
>> >>
>> >> Dawid
>> >>
>> >>
>> >> On Wed, Jan 11, 2012 at 9:28 AM, Frank Moss <frankmoss1950@gmail.com>
>> >> wrote:
>> >> > I have a collection of 50 million documents and I hit the SIGSEGV
>> error.
>> >> > For every 10000 documents I perform commit.
>> >> > The logs and the question has been posted to SO here:
>> >> http://bit.ly/xyZUEG
>> >> > where I was encouraged to post this question to this mailing list.
>> >> >
>> >> > I have tested with different versions of java both in 6.0 and 7.0
>> release
>> >> > lines (including older versions). I get the same error when running
>> with
>> >> > Jrockit jvm.
>> >> > Memory test was ok.
>> >> >
>> >> > Anybody had similar issue? Any tips?
>> >> >
>> >> > Thanks.
>> >> > Regards,
>> >> > FM
>> >>
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>> >>
>>
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>>

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