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Subject: panic: blockable sleep lock (sleep mutex) 64 @
	/usr/srv/sys/vm/uma_core.
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Today, I update sources and rebuild world and kernel.
After reboot, I have panic. (my system is amd64)

panic: blockable sleep lock (sleep mutex) 64 @ /usr/srv/sys/vm/uma_core.
cpuid = 1
KDB: enter: panic
[thread pid 12 tid 100026 ]
Stopped at kdb_enter+0x3d: movq $0,0x6846d0(%rip)
db>
===========
back trace:

Tracing pid 12 tid 100026 td 0xffffff0002357720
kdb_enter() at kdb_enter+0x3d
panic() at panic+0x17b
whitness_checkorder() at whitness_checkorder+0x948
_mtx_lock_flags() at mtx_lock_flags+0x78
uma_zalloc_arg() at uma_zalloc_arg+0x2ae
malloc() at malloc+0x9a
AcpiOsExecute() at AcpiOsExecute+0x3c
AcpiEvGpeDispatch() at AcpiEvGpeDispatch+0x8c
AcpiEvGpeDetect() at AcpiEvGpeDetect+0xe4
AcpiEvSciXruptHandler() at AcpiEvSciXruptHandler+0x24
intr_event_execute_handlers() at intr_event_execute_handlers+0x68
ithread_loop() at ithread_loop+0xb2
fork_exit() at fork_exit+0x12a
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xffffff8000093d40, rbp = 0 ---