Hi mono folks! We have a c# binary running under mono on Ubuntu 14.04 which hangs periodically.
When it hangs, SIGQUIT does not generate a thread dump, and all threads, including one heartbeat thread that does very little but pulse the logs once a minute, seem to stop. I've tried building with debug symbols and attaching gdb to work out where it's stopped, but gdb segfaults when I try to get a stack trace for certain threads. Our executable does not contain any managed code. I suspect that this is a mono bug, rather than something in our code per se, though I'm not 100% sure, and I'm at somewhat of a loss as to how to proceed with debugging it. Does anyone have any suggestions on how to debug this? Or would be willing to log into our machine and take a look once it's stopped? I'm willing to pay for someone with serious gdb/mono foo to help us investigate it. Thanks, River
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