[Opensim-users] Server causing viewers to crash
Drover, Matt
mattdrover at mun.ca
Fri Mar 21 10:30:49 UTC 2014
I checked the blob size in the database once I isolated the bad prims.
I'm going to update to the latest version and see if that solves my
issue. If not, Dahila, I'll get you access to the grid to see it.
My setup is all VM based, and I moved mysql to it's own vm and upgraded
mysql to x64 and the problem went away.
Thanks.
-Matt
-----Original Message-----
From: opensim-users-bounces at lists.berlios.de
[mailto:opensim-users-bounces at lists.berlios.de] On Behalf Of Justin
Clark-Casey
Sent: Thursday, March 20, 2014 9:12 PM
To: opensim-users at lists.berlios.de
Subject: Re: [Opensim-users] Server causing viewers to crash
0.7.6 was September 2013 so those changes won't be there. It would be
very odd that 500 objects are causing the issue, unless someone has
duplicated a lot of stuff.
Matt, have you definitely eliminated some kind of disk corruption? Your
problem with mysql timeout during initial load of some regions made me
think that you might have some underlying issue.
Failing that, how do you know these objects have no particle system
data? They have none in the database itself?
On 20/03/14 20:18, Dahlia Trimble wrote:
> I added some code to support the new particle system features such as
> ribbon and alpha blending and glow, back around last November 6th and
> 7th. I don't remember when 0.7.6 was released but I thought those
> changes made it in. There were also changes to most third-party
viewers to support those features. I'm not aware of any crashes caused
specifically by these changes but if you have an object or a particle
script which can reproduce it, could you get it to me somehow?
>
> -dahlia
>
>
> On Thu, Mar 20, 2014 at 10:32 AM, Drover, Matt <mattdrover at mun.ca
<mailto:mattdrover at mun.ca>> wrote:
>
> Hi, your code fix of " update.PSBlock = Utils.EmptyBytes;" worked.
My
> world is up and running again. To start to solve the problem
properly, I
> recoded some of singularity to output the prims causing the issue.
There
> is about 500 of them. Oddly, none of them had any particle system
data.
> I tested editing an item and closing it and it solves the problem.
But
> how to do this for 500 items?
>
> I realize this started happening after the upgrade form 0.7.4 to
0.7.6.
>
> Any thoughts?
>
> -Matthew
>
> -----Original Message-----
> From: opensim-users-bounces at lists.berlios.de
<mailto:opensim-users-bounces at lists.berlios.de>
> [mailto:opensim-users-bounces at lists.berlios.de
<mailto:opensim-users-bounces at lists.berlios.de>] On Behalf Of Justin
> Clark-Casey
> Sent: Tuesday, March 11, 2014 5:58 PM
> To: opensim-users at lists.berlios.de
<mailto:opensim-users at lists.berlios.de>
> Subject: Re: [Opensim-users] Server causing viewers to crash
>
> Hi Matthew. I haven't seen this before. However, a quick grep of
the
> Singularity source code reveals that "syssize"
> and "whippang" are currently unused and probably dummy names used
in the
> unpacking of particle system data (llpartdata.cpp).
>
> This suggests to me that the particle system data in one of your
prims
> has somehow become corrupt, in such a way that it triggers a crash
in
> the viewer.
>
> If you are building OpenSimulator, an extremely quick and dirty
test
> would be to replace
>
> update.PSBlock = data.ParticleSystem ?? Utils.EmptyBytes;
>
> in LLClientView.CreatePrimUpdateBlock() with just
>
> update.PSBlock = Utils.EmptyBytes;
>
> and see if the problem goes away. If it does, then it is a
particle
> system issue. Unfortunately, then it's a case of elimination of
> anything with a particle system (I think you could get a list of
such
> prims by looking for non-empty ParticleSystem fields in the prims
db
> table).
>
> Or if we're unlucky, it could be some other bad data in building
the
> prim packet and this is only showing up when the viewer tries to
unpack
> the particle system section.
>
> On 11/03/14 11:27, Drover, Matt wrote:
> > Somehow, something has changed on my server and all viewers are
> crashing when they connect to my grid.
> >
> > I'm running opensim v0.7.6 in grid mode. I have 15 regions
spanned
> > across 5 opensim instances. All on the same pc. The pc is
windows
> server 2008 r2 and is a vm.
> >
> > I tested many viewers, all with the same results. Here are the
errors
> from the singulatiry viewer log.
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Buffer overflow in BinaryBuffer length verify, field name crc!
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Current pos: 0 Buffer size: 1 Data size: 4
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Buffer overflow in BinaryBuffer length verify, field name
syssize!
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Current pos: 0 Buffer size: 1 Data size: 4
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Buffer overflow in BinaryBuffer length verify, field name
whippang!
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Current pos: 4 Buffer size: 1 Data size: 1
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Buffer overflow in BinaryBuffer length verify, field name
whippang!
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Current pos: 5 Buffer size: 1 Data size: 1
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Buffer overflow in BinaryBuffer length verify, field name
whippang!
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Current pos: 6 Buffer size: 1 Data size: 1
> >
> > 2014-03-10T14:20:23Z WARNING:
LLDataPackerBinaryBuffer::verifyLength:
> > Buffer overflow in BinaryBuffer length verify, field name
whippang!
> >
> > The last 2 lines repeat about 1000 more times then the viewer
crashes.
> >
> > Any ideas?
> >
> > *Matthew Drover
> > *Programmer Consultant
> >
> > Immersive Technology
> > Distance Education, Learning and Teaching Support
> >
> >
> >
> > _______________________________________________
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> > Opensim-users at lists.berlios.de
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> > https://lists.berlios.de/mailman/listinfo/opensim-users
> >
>
>
> --
> Justin Clark-Casey (justincc)
> OSVW Consulting
> http://justincc.org
> http://twitter.com/justincc
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--
Justin Clark-Casey (justincc)
OSVW Consulting
http://justincc.org
http://twitter.com/justincc
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