login: 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,ffffff006f2a9300) at _bpf_mtap+0x68 end trace frame: 0xffff800021028050, count: 0 ddb> trace _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff006f2a9300) at _bpf_mtap+0x68 bpf_mtap_ether(ffff8000210280f8,84,ffff800000074340) at bpf_mtap_ether+0xeb ifiq_input(ffff800000171050,ffff800000171290,ffffff006f2a9300) 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 0xffffff006f2a9300 rbp 0xffff800021027fc0 rbx 0x6000100 __kernel_end_phys+0x4000100 rdx 0x1 rcx 0 rax 0x42 r8 0x2 r9 0 r10 0 r11 0xffffffff81274a30 bpf_mbuf_ldb r12 0xffff800000074340 r13 0x42 r14 0x1 r15 0 rip 0xffffffff812738b8 _bpf_mtap+0x68 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800021027f50 ss 0x10 _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> show proc PROC (idle0) pid=268411 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=86, nice=20 forw=0xf73eed99b105fb4b, list=0xffff8000fffffc20,0xffff8000fffff2d0 process=0xffff80002101a940 user=0xffff800021023000, vmspace=0xffffffff81ea4690 estcpu=36, cpticks=23686, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 12314 96814 1 0 3 0x100083 ttyin getty 49221 251954 0 0 3 0x14200 bored sosplice 39099 40580 40605 0 3 0x2 biowait syz-executor0 51724 2247 40605 0 3 0x2 biowait syz-executor1 40605 514371 29776 0 3 0x82 thrsleep syz-fuzzer 40605 355095 29776 0 3 0x4000082 nanosleep syz-fuzzer 40605 70472 29776 0 3 0x4000082 thrsleep syz-fuzzer 40605 332201 29776 0 3 0x4000082 thrsleep syz-fuzzer 40605 245680 29776 0 3 0x4000082 kqread syz-fuzzer 40605 106370 29776 0 3 0x4000082 thrsleep syz-fuzzer 40605 55195 29776 0 3 0x4000082 thrsleep syz-fuzzer 29776 260295 29032 0 3 0x10008a pause ksh 29032 262391 55733 0 3 0x92 select sshd 55733 302861 1 0 3 0x80 select sshd 32315 219842 29150 73 2 0x100090 syslogd 29150 331942 1 0 3 0x100082 netio syslogd 76551 276330 1 77 3 0x100090 poll dhclient 1244 316660 1 0 3 0x80 poll dhclient 247 202682 0 0 3 0x14200 pgzero zerothread 75768 312084 0 0 3 0x14200 aiodoned aiodoned 74834 134805 0 0 3 0x14200 syncer update 32071 77052 0 0 3 0x14200 cleaner cleaner 21090 471336 0 0 3 0x14200 reaper reaper 64234 398579 0 0 3 0x14200 pgdaemon pagedaemon 86263 324414 0 0 3 0x14200 bored crynlk 12486 77451 0 0 3 0x14200 bored crypto 77229 149649 0 0 3 0x40014200 acpi0 acpi0 84919 326557 0 0 3 0x14200 bored softnet 90958 383659 0 0 3 0x14200 bored systqmp 27530 355865 0 0 3 0x14200 bored systq 64224 440986 0 0 3 0x40014200 bored softclock *89076 268411 0 0 7 0x40014200 idle0 1 95973 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper