uvm_fault(0xffffffff81ea4690, 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(0xffffffff81ea4690, 0x6000118, 0, 1) -> e _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff006efe9100) at _bpf_mtap+0x68 end trace frame: 0xffff8000210284f0, count: 0 ddb> trace _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff006efe9100) at _bpf_mtap+0x68 bpf_mtap_ether(ffff800021028598,42,ffff800000074340) at bpf_mtap_ether+0xeb ifiq_input(ffff800000171050,ffff800000171290,ffffff006efe9100) 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 0xffffff006efe9100 rbp 0xffff800021028460 rbx 0x6000100 __kernel_end_phys+0x4000100 rdx 0x1 rcx 0 rax 0x42 r8 0x2 r9 0 r10 0 r11 0xffffffff81818760 _bus_dmamap_unload r12 0xffff800000074340 r13 0x42 r14 0x1 r15 0 rip 0xffffffff812738b8 _bpf_mtap+0x68 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff8000210283f0 ss 0x10 _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> show proc PROC (idle0) pid=523641 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=86, nice=20 forw=0xfdf17d9324f0d765, list=0xffff8000fffff9c8,0xffff8000fffff2d0 process=0xffff800021019fc8 user=0xffff800021023000, vmspace=0xffffffff81ea4690 estcpu=36, cpticks=30559, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 16820 50376 1 0 3 0x100083 ttyin getty 32208 8936 0 0 3 0x14200 bored sosplice 65781 228310 7430 0 3 0x2 biowait syz-executor0 84825 372473 7430 0 3 0x82 nanosleep syz-executor1 7430 222062 28921 0 3 0x82 thrsleep syz-fuzzer 7430 49427 28921 0 3 0x4000082 nanosleep syz-fuzzer 7430 294260 28921 0 3 0x4000082 kqread syz-fuzzer 7430 231693 28921 0 3 0x4000082 thrsleep syz-fuzzer 7430 504665 28921 0 3 0x4000082 thrsleep syz-fuzzer 7430 34830 28921 0 3 0x4000082 thrsleep syz-fuzzer 7430 208400 28921 0 3 0x4000082 thrsleep syz-fuzzer 28921 494425 31920 0 3 0x10008a pause ksh 31920 393417 12428 0 3 0x92 select sshd 12428 357160 1 0 3 0x80 select sshd 16445 112265 72115 73 2 0x100090 syslogd 72115 502504 1 0 3 0x100082 netio syslogd 84496 281735 1 77 3 0x100090 poll dhclient 16758 509631 1 0 3 0x80 poll dhclient 60074 493746 0 0 3 0x14200 pgzero zerothread 79611 6963 0 0 3 0x14200 aiodoned aiodoned 28878 163710 0 0 3 0x14200 syncer update 94105 55057 0 0 3 0x14200 cleaner cleaner 46771 402103 0 0 3 0x14200 reaper reaper 74350 451074 0 0 3 0x14200 pgdaemon pagedaemon 52157 213333 0 0 3 0x14200 bored crynlk 61418 197560 0 0 3 0x14200 bored crypto 58826 348435 0 0 3 0x40014200 acpi0 acpi0 3411 402571 0 0 3 0x14200 bored softnet 91025 207046 0 0 3 0x14200 bored systqmp 49577 8616 0 0 3 0x14200 bored systq 24921 84490 0 0 3 0x40014200 bored softclock *40635 523641 0 0 7 0x40014200 idle0 1 284836 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper