uvm_fault(0xffffffff81ed58c8, 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(0xffffffff81ed58c8, 0x6000118, 0, 1) -> e _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff006f2b3b00) at _bpf_mtap+0x68 end trace frame: 0xffff8000210282f0, count: 0 ddb> trace _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff006f2b3b00) at _bpf_mtap+0x68 bpf_mtap_ether(ffff800021028398,42,ffff800000074340) at bpf_mtap_ether+0xeb ifiq_input(ffff800000171050,ffff800000171290,ffffff006f2b3b00) 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 0xffffff006f2b3b00 rbp 0xffff800021028260 rbx 0x6000100 __kernel_end_phys+0x4000100 rdx 0x1 rcx 0 rax 0x42 r8 0x2 r9 0 r10 0 r11 0xffffffff81214d30 _bus_dmamap_unload r12 0xffff800000074340 r13 0x42 r14 0x1 r15 0 rip 0xffffffff81732338 _bpf_mtap+0x68 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff8000210281f0 ss 0x10 _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> show proc PROC (idle0) pid=285502 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=86, nice=20 forw=0x227aba75a22903ad, list=0xffff8000fffff2c0,0xffff8000ffffebc8 process=0xffff80002101a2f0 user=0xffff800021023000, vmspace=0xffffffff81ed58c8 estcpu=36, cpticks=604, pctcpu=6.24 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 18363 139532 0 0 3 0x14200 bored sosplice 91081 90272 57283 0 3 0x2 biowait syz-executor0 57687 86932 57283 0 3 0x2 biowait syz-executor1 57283 117721 70858 0 3 0x82 thrsleep syz-fuzzer 57283 333252 70858 0 3 0x4000082 nanosleep syz-fuzzer 57283 373514 70858 0 3 0x4000082 thrsleep syz-fuzzer 57283 389816 70858 0 3 0x4000082 kqread syz-fuzzer 57283 215665 70858 0 3 0x4000082 thrsleep syz-fuzzer 57283 185335 70858 0 3 0x4000082 thrsleep syz-fuzzer 57283 156125 70858 0 3 0x4000082 thrsleep syz-fuzzer 70858 124616 78140 0 3 0x10008a pause ksh 78140 351866 22217 0 3 0x92 select sshd 55637 42432 1 0 3 0x100083 ttyin getty 22217 506601 1 0 3 0x80 select sshd 34958 300541 8594 73 2 0x100090 syslogd 8594 200083 1 0 3 0x100082 netio syslogd 31376 149105 1 77 3 0x100090 poll dhclient 99506 331051 1 0 3 0x80 poll dhclient 7241 270686 0 0 3 0x14200 pgzero zerothread 24625 235447 0 0 3 0x14200 aiodoned aiodoned 82913 454337 0 0 3 0x14200 syncer update 97090 137305 0 0 3 0x14200 cleaner cleaner 77700 230166 0 0 3 0x14200 reaper reaper 64221 377498 0 0 3 0x14200 pgdaemon pagedaemon 95965 4905 0 0 3 0x14200 bored crynlk 17571 295305 0 0 3 0x14200 bored crypto 76308 99947 0 0 3 0x40014200 acpi0 acpi0 21838 169445 0 0 3 0x14200 bored softnet 89188 79781 0 0 3 0x14200 bored systqmp 77039 59267 0 0 3 0x14200 bored systq 67220 139216 0 0 3 0x40014200 bored softclock *11479 285502 0 0 7 0x40014200 idle0 1 83711 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper