uvm_fault(0xffffff007f12b318, 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(0xffffff007f12b318, 0x6000118, 0, 1) -> e _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff006d7a5200) at _bpf_mtap+0x68 end trace frame: 0xffff800021166150, count: 0 ddb> trace _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff006d7a5200) at _bpf_mtap+0x68 bpf_mtap_ether(ffff8000211661f8,42,ffff800000074340) at bpf_mtap_ether+0xeb ifiq_input(ffff800000171050,ffff800000171290,ffffff006d7a5200) 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(0,1,15e79c43,0,ffff800021012000,10) at Xintr_ioapic_edge19_untramp+0x19f pvclock_get_timecount(ffff8000210ac288) at pvclock_get_timecount+0x57 nanotime(ffff8000210ac288) at nanotime+0x59 clock_gettime(ffff8000211665b0,ffff8000210ac288,ffff800021060620) at clock_gettime+0x81 sys_clock_gettime(ffff8000211665b0,ffff8000210ac288,570) at sys_clock_gettime+0x45 syscall(0) at syscall+0x3e4 Xsyscall(0,57,e379489e000,57,0,16) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff3900, count: -14 ddb> show registers rdi 0xffff800000074340 rsi 0xffffff006d7a5200 rbp 0xffff8000211660c0 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 0xffff800021166050 ss 0x10 _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> show proc PROC (syz-executor0) pid=170687 stat=onproc flags process=0 proc=0 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000210ac4e0,0xffff8000210ad0a8 process=0xffff800021060620 user=0xffff800021161000, vmspace=0xffffff007f12b318 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *14174 170687 75971 0 7 0 syz-executor0 14174 127433 75971 0 3 0x4000000 biowait syz-executor0 92916 506335 1 0 3 0x100083 ttyin getty 22194 32351 0 0 3 0x14200 bored sosplice 75971 177550 61473 0 3 0x82 nanosleep syz-executor0 50202 456029 61473 0 3 0x2 biowait syz-executor1 61473 313156 48587 0 3 0x82 thrsleep syz-fuzzer 61473 16016 48587 0 3 0x4000082 nanosleep syz-fuzzer 61473 15526 48587 0 3 0x4000082 thrsleep syz-fuzzer 61473 149185 48587 0 3 0x4000082 thrsleep syz-fuzzer 61473 490833 48587 0 3 0x4000082 thrsleep syz-fuzzer 61473 482571 48587 0 3 0x4000082 thrsleep syz-fuzzer 61473 361487 48587 0 3 0x4000082 kqread syz-fuzzer 48587 461310 8108 0 3 0x10008a pause ksh 8108 121282 73679 0 3 0x92 select sshd 73679 439888 1 0 3 0x80 select sshd 32311 359142 9579 73 2 0x100090 syslogd 9579 483533 1 0 3 0x100082 netio syslogd 67544 215436 1 77 3 0x100090 poll dhclient 31580 358682 1 0 3 0x80 poll dhclient 27135 85060 0 0 2 0x14200 zerothread 95147 427829 0 0 3 0x14200 aiodoned aiodoned 88334 388479 0 0 3 0x14200 syncer update 84915 167566 0 0 3 0x14200 cleaner cleaner 26634 287787 0 0 3 0x14200 reaper reaper 66126 441878 0 0 3 0x14200 pgdaemon pagedaemon 14849 174748 0 0 3 0x14200 bored crynlk 30448 92436 0 0 3 0x14200 bored crypto 44828 491545 0 0 3 0x40014200 acpi0 acpi0 77136 116027 0 0 3 0x14200 bored softnet 11434 448135 0 0 3 0x14200 bored systqmp 4511 387177 0 0 3 0x14200 bored systq 52685 209485 0 0 3 0x40014200 bored softclock 82887 152469 0 0 3 0x40014200 idle0 1 288065 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper