head r30140 - Panic String: _mtx_lock_sleep: recursed on non-recursive mutex vm page @ /usr/src/sys/vm/vm_page.c:774

Since upgrading to head r301040 I have started to get the above panic 
while running
poudriere while building packages for 10.3-STABLE r301107.

Unfortuately I can't tell you the previous version of head but it was 
from some
months ago.


https://charon.gopai.com/core.txt.7

https://charon.gopai.com/info.7

I also have the full core file if needed.

Let me know what else I can provide.

Thank you.