On Oct 29, 2012, at 8:30 AM, MarkDaniel <[email protected]> wrote:
> I wondered if anyone had any hints where to look?
> System.NullReferenceException: Object reference not set to an instance of an
> object
This frequently means that the process has died, and the NRE is the last gasp
of the runtime. You'd have to look at the surrounding logcat output for
additional contextual information, e.g. Dalvik may be nuking you because you
used too much memory.
Or mono asserted and killed your process for you, like here:
> 10-29 12:29:09.459 W/ ( 6363): _wapi_handle_ref: Attempting to ref
> unused handle 0x443
> 10-29 12:29:09.459 F/ ( 6363): * Assertion at
> /Users/builder/data/lanes/monodroid-mac-monodroid-4.2.6-branch/632e6ddf/source/mono/mono/io-layer/wthreads.c:1365,
> condition `ok' not met
This can happen if the executing thread can't be found:
https://github.com/mono/mono/blob/mono-2-10/mono/io-layer/wthreads.c#L1365
So either OpenThread() failed (returning an invalid thread_handle), or
_wapi_lookup_handle() failed for some other reason; I don't know what, but this
looks like a Shouldn't Happen™ scenario. I'd likewise wonder if there is any
other relevant logcat messages from pid 6363 (in this case!) that would point
to Dalvik nuking your process.
- Jon
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