uvm_fault(0xffffff007f12b630, 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(0xffffff007f12b630, 0x6000118, 0, 1) -> e _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff0073cf0700) at _bpf_mtap+0x68 end trace frame: 0xffff800021165ef0, count: 0 ddb> trace _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff0073cf0700) at _bpf_mtap+0x68 bpf_mtap_ether(ffff800021165f98,c6,ffff800000074340) at bpf_mtap_ether+0xeb ifiq_input(ffff800000171050,ffff800000171290,ffffff0073cf0700) 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(0,7f7ffffd50d8,0,0,32c5227a038,20c49ba5e353f7cf) at Xintr_ioapic_edge19_untramp+0x19f end of kernel end trace frame: 0x7f7ffffd5200, count: -8 ddb> show registers rdi 0xffff800000074340 rsi 0xffffff0073cf0700 rbp 0xffff800021165e60 rbx 0x6000100 __kernel_end_phys+0x4000100 rdx 0x1 rcx 0 rax 0x42 r8 0x2 r9 0 r10 0 r11 0xffffffff817334b0 bpf_mbuf_ldb r12 0xffff800000074340 r13 0x42 r14 0x1 r15 0 rip 0xffffffff81732338 _bpf_mtap+0x68 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800021165df0 ss 0x10 _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> show proc PROC (syz-executor0) pid=110218 stat=onproc flags process=0 proc=0 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffffa270,0xffff8000ffffb2e8 process=0xffff80002105f330 user=0xffff800021161000, vmspace=0xffffff007f12b630 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=0, intr=1 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *31082 110218 23127 0 7 0 syz-executor0 31082 137951 23127 0 3 0x4000000 biowait syz-executor0 80364 59011 1 0 3 0x100083 ttyin getty 45598 140590 0 0 3 0x14200 bored sosplice 23127 323706 86335 0 3 0x82 nanosleep syz-executor0 31590 99118 86335 0 3 0x2 getblk syz-executor1 86335 265665 27348 0 3 0x82 thrsleep syz-fuzzer 86335 231004 27348 0 3 0x4000082 nanosleep syz-fuzzer 86335 146225 27348 0 3 0x4000082 thrsleep syz-fuzzer 86335 405923 27348 0 3 0x4000082 thrsleep syz-fuzzer 86335 104150 27348 0 3 0x4000082 thrsleep syz-fuzzer 86335 48413 27348 0 3 0x4000082 thrsleep syz-fuzzer 86335 249176 27348 0 3 0x4000082 kqread syz-fuzzer 27348 161377 98337 0 3 0x10008a pause ksh 98337 454319 40638 0 3 0x92 select sshd 40638 522301 1 0 3 0x80 select sshd 83222 172592 19705 73 2 0x100090 syslogd 19705 409872 1 0 3 0x100082 netio syslogd 31623 389778 1 77 3 0x100090 poll dhclient 62216 395555 1 0 3 0x80 poll dhclient 91706 129598 0 0 2 0x14200 zerothread 2394 259000 0 0 3 0x14200 aiodoned aiodoned 62726 102295 0 0 3 0x14200 syncer update 16603 487221 0 0 3 0x14200 cleaner cleaner 73243 20363 0 0 3 0x14200 reaper reaper 8912 375560 0 0 3 0x14200 pgdaemon pagedaemon 74267 200768 0 0 3 0x14200 bored crynlk 56809 315969 0 0 3 0x14200 bored crypto 35686 428841 0 0 3 0x40014200 acpi0 acpi0 48763 442335 0 0 3 0x14200 bored softnet 2617 254169 0 0 3 0x14200 bored systqmp 58680 387363 0 0 3 0x14200 bored systq 7901 337772 0 0 3 0x40014200 bored softclock 73582 250142 0 0 3 0x40014200 idle0 1 77454 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper