FreeNAS Unscheduled Reboots - msgbuf.txt

MCA: Bank 18, Status 0xec20000000081136
MCA: Global Cap 0x0000000001000c14, Status 0x0000000000000005
MCA: Vendor "GenuineIntel", ID 0x206d7, APIC ID 3
MCA: CPU 3 UNCOR OVER DCACHE L2 DRD error
MCA: Address 0x1f1967d040
MCA: Misc 0x3002034086
panic: Unrecoverable machine check exception
cpuid = 3
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe2f3d765e40
vpanic() at vpanic+0x17e/frame 0xfffffe2f3d765ea0
panic() at panic+0x43/frame 0xfffffe2f3d765f00
mca_intr() at mca_intr+0x9b/frame 0xfffffe2f3d765f20
mchk_calltrap() at mchk_calltrap+0x8/frame 0xfffffe2f3d765f20
--- trap 0x1c, rip = 0xffffffff81199040, rsp = 0xfffffe2ecbf568fc, rbp = 0xfffffe2ecbf56900 ---
acpi_cpu_idle_mwait() at acpi_cpu_idle_mwait+0x70/frame 0xfffffe2ecbf56900
acpi_cpu_idle() at acpi_cpu_idle+0x183/frame 0xfffffe2ecbf56950
cpu_idle_acpi() at cpu_idle_acpi+0x3f/frame 0xfffffe2ecbf56970
cpu_idle() at cpu_idle+0x94/frame 0xfffffe2ecbf56990
sched_idletd() at sched_idletd+0x476/frame 0xfffffe2ecbf56a70
fork_exit() at fork_exit+0x83/frame 0xfffffe2ecbf56ab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe2ecbf56ab0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic