uvm_fault(0xffffffff81edd668, 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(0xffffffff81edd668, 0x6000118, 0, 1) -> e _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff007ee0dc00) at _bpf_mtap+0x68 end trace frame: 0xffff800021028978, count: 0 ddb> trace _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff007ee0dc00) at _bpf_mtap+0x68 bpf_mtap_ether(ffff800021028a20,42,ffff800000074340) at bpf_mtap_ether+0xeb ifiq_input(ffff800000171050,ffff800000171290,ffffff007ee0dc00) 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,ffffffff81363850,0,18041969,0,c) at Xintr_ioapic_edge19_untramp+0x19f Xspllower(0,ffffffff81dffff0,ffff8000fffff9c8,c36e860447783960,ffffffff8187af31,0) at Xspllower+0xc sched_idle(0) at sched_idle+0x155 end trace frame: 0x0, count: -10 ddb> show registers rdi 0xffff800000074340 rsi 0xffffff007ee0dc00 rbp 0xffff8000210288e8 rbx 0x6000100 __kernel_end_phys+0x4000100 rdx 0x1 rcx 0 rax 0x42 r8 0x2 r9 0 r10 0xffff800021028bd8 r11 0xffffffff810b8400 _bus_dmamap_unload r12 0xffff800000074340 r13 0x42 r14 0x1 r15 0 rip 0xffffffff81397ad8 _bpf_mtap+0x68 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800021028878 ss 0x10 _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> show proc PROC (idle0) pid=286075 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=86, nice=20 forw=0x17a663624cde5244, list=0xffff8000fffffc20,0xffff8000fffff780 process=0xffff8000210222f0 user=0xffff800021023000, vmspace=0xffffffff81edd668 estcpu=36, cpticks=103418, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 50295 141681 85473 0 3 0x80 nanosleep syz-executor1 50295 4894 85473 0 3 0x4000080 select syz-executor1 11265 417657 85990 0 3 0x2 biowait syz-executor0 85473 216160 85990 0 3 0x82 nanosleep syz-executor1 77903 506078 1 0 3 0x100083 ttyin getty 51934 23595 0 0 3 0x14200 bored sosplice 85990 173346 43743 0 3 0x82 thrsleep syz-fuzzer 85990 487996 43743 0 3 0x4000082 nanosleep syz-fuzzer 85990 68426 43743 0 3 0x4000082 thrsleep syz-fuzzer 85990 85638 43743 0 3 0x4000082 thrsleep syz-fuzzer 85990 309182 43743 0 3 0x4000082 thrsleep syz-fuzzer 85990 489983 43743 0 3 0x4000082 thrsleep syz-fuzzer 85990 346464 43743 0 3 0x4000082 kqread syz-fuzzer 43743 317761 31386 0 3 0x10008a pause ksh 31386 133082 35281 0 3 0x92 select sshd 35281 244110 1 0 3 0x80 select sshd 98604 48653 62066 73 2 0x100090 syslogd 62066 23096 1 0 3 0x100082 netio syslogd 80711 302327 1 77 3 0x100090 poll dhclient 81074 320174 1 0 3 0x80 poll dhclient 96944 487755 0 0 3 0x14200 pgzero zerothread 78359 205642 0 0 3 0x14200 aiodoned aiodoned 1550 240588 0 0 3 0x14200 syncer update 72219 404091 0 0 3 0x14200 cleaner cleaner 68590 219539 0 0 3 0x14200 reaper reaper 11270 382966 0 0 3 0x14200 pgdaemon pagedaemon 32543 176083 0 0 3 0x14200 bored crynlk 8306 315652 0 0 3 0x14200 bored crypto 44713 494479 0 0 3 0x40014200 acpi0 acpi0 66087 133036 0 0 3 0x14200 bored softnet 37356 439307 0 0 3 0x14200 bored systqmp 15554 304024 0 0 3 0x14200 bored systq 16103 190243 0 0 3 0x40014200 bored softclock *40519 286075 0 0 7 0x40014200 idle0 1 361398 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper