CTRL-T in the console works
        ==> _cpu_0 <==
        rip[0]          0x00000000c0b14780
        rip[0]          0x00000000c0b14782

 There are the RIPs that show when the system is idle.

        ==> _cpu_2 <==
        rip[2]          0x00000000c100feb0

 This is the TLB shootdown loop:

(kgdb) x/i 0xc100feb0
0xc100feb0 <smp_tlb_shootdown+176>:     pause

I'll try with a bit more CPU oversubscription and see if I can hit this. Thanks for the info - this should help track it down.


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