I ran tcpdump and killall tcpdump in a loop on 7.0, and after a few minutes it panicked with:
Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x8 fault code = supervisor read, page not present instruction pointer = 0x20:0xc058d0fb stack pointer = 0x28:0xe5007c04 frame pointer = 0x28:0xe5007c28 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 9 (em0 taskq) [thread pid 9 tid 100019 ] Stopped at bpf_mtap+0xf: cmpl $0,0x8(%edi) db> wh Tracing pid 9 tid 100019 td 0xc63d6340 bpf_mtap(0,c8f46500,1,2,c63d0001) at bpf_mtap+0xf ether_input(c6455c00,c8f46500,c8f46500,c6588880,1) at ether_input+0x15f em_rxeof(c656e800,63,1,c06f7be0,c656e9cc) at em_rxeof+0x423 em_handle_rxtx(c656e800,1,c06fbfa7,50,c658889c) at em_handle_rxtx+0x5b taskqueue_run(c6588880,c658889c,c06f0e27,0,1) at taskqueue_run+0x104 taskqueue_thread_loop(c656e9dc,e5007d38,c06f5c42,31a,c656e9dc) at taskqueue_thread_loop+0x6b fork_exit(c053b5f8,c656e9dc,e5007d38) at fork_exit+0xc5 fork_trampoline() at fork_trampoline+0x8 --- trap 0x1, eip = 0, esp = 0xe5007d6c, ebp = 0 --- db> Core available. Kris
pgpHaWvwryxPy.pgp
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