uvm_fault(0xffffffff81ebbac8, 0x6000118, 0, 1) -> e kernel: page fault trap, code=0 Stopped at _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff81ebbac8, 0x6000118, 0, 1) -> e _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff006d76d800) at _bpf_mtap+0x68 end trace frame: 0xffff8000210289e0, count: 0 ddb> trace _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff006d76d800) at _bpf_mtap+0x68 bpf_mtap_ether(ffff800021028a88,42,ffff800000074340) at bpf_mtap_ether+0xeb ifiq_input(ffff800000171050,ffff800000171290,ffffff006d76d800) at ifiq_input+0x105 vio_rxeof(ffff800000171050) at vio_rxeof+0x220 vio_rx_intr(ffffffff) at vio_rx_intr+0x23 virtio_check_vqs(ffff80000001c300) at virtio_check_vqs+0x166 intr_handler(0,ffff80000024b980) at intr_handler+0x3f Xintr_ioapic_edge19_untramp(0,0,0,0,ffff80000001c900,ffff800000022700) at Xintr_ioapic_edge19_untramp+0x19f acpicpu_idle() at acpicpu_idle+0x221 sched_idle(0) at sched_idle+0x27a end trace frame: 0x0, count: -10 ddb> show registers rdi 0xffff800000074340 rsi 0xffffff006d76d800 rbp 0xffff800021028950 rbx 0x6000100 __kernel_end_phys+0x4000100 rdx 0x1 rcx 0 rax 0x42 r8 0x2 r9 0 r10 0 r11 0xffffffff819f9090 _bus_dmamap_unload r12 0xffff800000074340 r13 0x42 r14 0x1 r15 0 rip 0xffffffff818fe5a8 _bpf_mtap+0x68 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff8000210288e0 ss 0x10 _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> show proc PROC (idle0) pid=174158 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=86, nice=20 forw=0xb3d5298e7d87d38a, list=0xffff8000fffff518,0xffff8000ffffebc8 process=0xffff80002101a618 user=0xffff800021023000, vmspace=0xffffffff81ebbac8 estcpu=36, cpticks=74126, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 67632 324560 1 0 3 0x100083 ttyin getty 38670 129481 0 0 3 0x14200 bored sosplice 88680 148905 32693 0 3 0x2 biowait syz-executor0 34929 322462 32693 0 3 0x2 biowait syz-executor1 32693 112663 88300 0 3 0x82 thrsleep syz-fuzzer 32693 203758 88300 0 3 0x4000082 nanosleep syz-fuzzer 32693 335906 88300 0 3 0x4000082 thrsleep syz-fuzzer 32693 123224 88300 0 3 0x4000082 thrsleep syz-fuzzer 32693 12915 88300 0 3 0x4000082 kqread syz-fuzzer 32693 401536 88300 0 3 0x4000082 thrsleep syz-fuzzer 32693 142050 88300 0 3 0x4000082 thrsleep syz-fuzzer 88300 329992 80435 0 3 0x10008a pause ksh 80435 353990 21526 0 3 0x92 select sshd 21526 228267 1 0 3 0x80 select sshd 40558 341390 8323 73 2 0x100090 syslogd 8323 386301 1 0 3 0x100082 netio syslogd 85691 207532 1 77 3 0x100090 poll dhclient 19930 141261 1 0 3 0x80 poll dhclient 78926 355477 0 0 3 0x14200 pgzero zerothread 31851 325571 0 0 3 0x14200 aiodoned aiodoned 4447 107036 0 0 3 0x14200 syncer update 6708 425258 0 0 3 0x14200 cleaner cleaner 60737 340109 0 0 3 0x14200 reaper reaper 55014 200454 0 0 3 0x14200 pgdaemon pagedaemon 5969 505508 0 0 3 0x14200 bored crynlk 92097 521538 0 0 3 0x14200 bored crypto 77840 308870 0 0 3 0x40014200 acpi0 acpi0 8698 458249 0 0 3 0x14200 bored softnet 89039 199832 0 0 3 0x14200 bored systqmp 11659 369647 0 0 3 0x14200 bored systq 59244 494834 0 0 3 0x40014200 bored softclock *75245 174158 0 0 7 0x40014200 idle0 1 457216 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper