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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Justin Clark-Casey (justincc)
OSVW Consulting
http://justincc.org
http://twitter.com/justincc
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