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,ffffff006f387100) at _bpf_mtap+0x68 end trace frame: 0xffff80002105e6a0, count: 0 ddb> trace _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff006f387100) at _bpf_mtap+0x68 bpf_mtap_ether(ffff80002105e748,42,ffff800000074340) at bpf_mtap_ether+0xeb ifiq_input(ffff800000171050,ffff800000171290,ffffff006f387100) 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(0,0,5e80,0,ffffffff81e92ae0,6500b) at Xintr_ioapic_edge19_untramp+0x19f PHYS_TO_VM_PAGE(6500b000) at PHYS_TO_VM_PAGE+0x92 pmap_remove_ptes(0,ffff800021169000,ffff800021169000,ffff800021200000,ffff800021163000,2105e990) at pmap_remove_ptes+0x128 pmap_do_remove(ffffffff81e67cc8,ffffff006cce2008,0,ffffff006cce2008) at pmap_do_remove+0x2e6 uvm_unmap_kill_entry(ffff800021169000,ffffffff81e67cc8) at uvm_unmap_kill_entry+0xd9 uvm_unmap_remove(ffff800021169000,ffffffff81e67cc8,ffff80002105eaf8,ffff800021163000,0,2c9baaff16308250) at uvm_unmap_remove+0x253 uvm_unmap(0,ffff8000210c1098,ffff8000ffffe960) at uvm_unmap+0x6d uvm_uarea_free(ffff8000210c1098) at uvm_uarea_free+0x28 reaper(0) at reaper+0xf3 end trace frame: 0x0, count: -16 ddb> show registers rdi 0xffff800000074340 rsi 0xffffff006f387100 rbp 0xffff80002105e610 rbx 0x6000100 __kernel_end_phys+0x4000100 rdx 0x1 rcx 0 rax 0x42 r8 0x2 r9 0 r10 0 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 0xffff80002105e5a0 ss 0x10 _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> show proc PROC (reaper) pid=35090 stat=onproc flags process=14000 proc=200 pri=4, usrpri=61, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffffe708,0xffff8000fffff2d0 process=0xffff800021060c70 user=0xffff800021059000, vmspace=0xffffffff81edd668 estcpu=11, cpticks=0, pctcpu=8.53 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 60434 301833 3841 0 2 0x3000 syz-executor1 25830 38766 1 0 3 0x100083 ttyin getty 2511 160773 0 0 3 0x14200 bored sosplice 5091 58958 15365 0 3 0x2 biowait syz-executor0 3841 225646 15365 0 3 0x82 nanosleep syz-executor1 15365 210576 81133 0 3 0x82 thrsleep syz-fuzzer 15365 261171 81133 0 3 0x4000082 nanosleep syz-fuzzer 15365 260640 81133 0 3 0x4000082 thrsleep syz-fuzzer 15365 92362 81133 0 3 0x4000082 kqread syz-fuzzer 15365 64201 81133 0 3 0x4000082 thrsleep syz-fuzzer 15365 111840 81133 0 3 0x4000082 thrsleep syz-fuzzer 15365 158340 81133 0 3 0x4000082 thrsleep syz-fuzzer 81133 349571 67487 0 3 0x10008a pause ksh 67487 301462 8553 0 3 0x92 select sshd 8553 279698 1 0 3 0x80 select sshd 62784 136798 46813 73 2 0x100090 syslogd 46813 236177 1 0 3 0x100082 netio syslogd 78535 167239 1 77 3 0x100090 poll dhclient 54240 69873 1 0 3 0x80 poll dhclient 6798 142113 0 0 2 0x14200 zerothread 98219 283997 0 0 3 0x14200 aiodoned aiodoned 85934 194761 0 0 3 0x14200 syncer update 26336 309256 0 0 3 0x14200 cleaner cleaner *95142 35090 0 0 7 0x14200 reaper 8258 482119 0 0 3 0x14200 pgdaemon pagedaemon 50281 75531 0 0 3 0x14200 bored crynlk 45462 96490 0 0 3 0x14200 bored crypto 15303 444481 0 0 3 0x40014200 acpi0 acpi0 91265 176116 0 0 3 0x14200 bored softnet 8008 295167 0 0 3 0x14200 bored systqmp 21299 78071 0 0 3 0x14200 bored systq 70416 379355 0 0 3 0x40014200 bored softclock 1357 110670 0 0 3 0x40014200 idle0 1 205056 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper