It would be helpful if you could file a mantis for this with all the details. It might be causing some kind of issue
and should be fixed anyway. However, since it's probably been around for quite a while without causing extremely
serious problems, it probably won't receive attention for a while.
On 08/09/11 02:02, Chris wrote:
Ahh I see... There was no other log info (at least no other unusual info)
before the exception occurs unfortunately.
Just the standard IAR loading procedural stuff then the exception(s)
immediately after it is done.
Is it anything I should be concerned with as far as possible data corruption or
IAR assets/inventory objects not being
loaded fully or anything?
Thanks =)
On 9/7/2011 4:52 PM, Justin Clark-Casey wrote:
An async_call_method thread is sometimes running through an enumeration while
another thread changes the collection,
which results in this error. It's some kind of race condition since this
doesn't occur consistently.
This is a different problem from that seen in Mantis 5669.
It's very unfortunate that there's no other log information here (I'm assuming
that you're not missing anything out),
since there's no indication as to where in the code this is occurring. Finding
it might mean a forensic analysis of
the code called by IAR loading, and even then it could be triggered by other
processes occurring in parallel.
The changes are this has been occurring some time and has only recently been
revealed by logging exceptions that come
to the top of async_call_method threads. We may have to comment this logging
out temporarily for the release.
On 07/09/11 12:12, Chris wrote:
Hi all. On latest master (r/16668) I've been getting some weird exceptions
after attempting to load
an IAR. Some times I'll get multiple errors, sometimes only a few or one, or
sometimes the exception
is not thrown. Doesn't seem to matter which avatar I attempt to load to or how
big the IAR is. What
could be causing this?
Thanks :)
Error:
06:07:25 - [UTIL]: Continuing after async_call_method thread terminated with exc
eption Collection was modified; enumeration operation may not execute. at Syst
em.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
06:07:25 - [UTIL]: Continuing after async_call_method thread terminated with exc
eption Collection was modified; enumeration operation may not execute. at Syst
em.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
06:07:25 - [UTIL]: Continuing after async_call_method thread terminated with exc
eption Collection was modified; enumeration operation may not execute. at Syst
em.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
06:07:25 - [UTIL]: Continuing after async_call_method thread terminated with exc
eption Collection was modified; enumeration operation may not execute. at Syst
em.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
06:07:25 - [UTIL]: Continuing after async_call_method thread terminated with exc
eption Collection was modified; enumeration operation may not execute. at Syst
em.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
06:07:25 - [UTIL]: Continuing after async_call_method thread terminated with exc
eption Collection was modified; enumeration operation may not execute. at Syst
em.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
06:07:25 - [UTIL]: Continuing after async_call_method thread terminated with exc
eption Collection was modified; enumeration operation may not execute. at Syst
em.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
--
Justin Clark-Casey (justincc)
http://justincc.org/blog
http://twitter.com/justincc
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