uvm_fault(0xfffffd803f015420, 0x8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f015420, 0x8, 0, 1) -> e VOP_ACCESS(62d1ee666d1a94a3,d,ffff8000ffff8bc0,ffff800014a123d0) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff800014a122e0, count: 0 ddb> trace VOP_ACCESS(62d1ee666d1a94a3,d,ffff8000ffff8bc0,ffff800014a123d0) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(17e58915680fd2da,10,ffff8000ffff8bc0) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(1065b840c7bebbd6) at syscall+0x528 Xsyscall(6,0,8,0,2,31723996010) at Xsyscall+0x128 end of kernel end trace frame: 0x31a0b420680, count: -4 ddb> show registers rdi 0xffffffff81add1fa VOP_ACCESS+0x3a rsi 0x84 rbp 0xffff800014a11dc0 rbx 0x2f rdx 0x85 rcx 0xffff800000938000 rax 0xffff800000938000 r8 0x40 r9 0xfffffd803f7c77e0 r10 0x2e81fd741775c7c2 r11 0x1b0302cac27df9c8 r12 0x100 r13 0 r14 0xffff8000ffff8bc0 r15 0xfffffd803f7c77e0 rip 0xffffffff81add20a VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800014a11d70 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> show proc PROC (syz-executor1) pid=209564 stat=onproc flags process=10 proc=4000000 pri=77, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff84b8,0xffff8000ffff8e28 process=0xffff8000149b3a60 user=0xffff800014a0d000, vmspace=0xfffffd803f015420 estcpu=27, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 4248 165639 91180 0 2 0 syz-executor0 4248 83132 91180 0 3 0x4000080 fsleep syz-executor0 41214 376021 32526 60929 2 0x10 syz-executor1 *41214 209564 32526 60929 7 0x4000010 syz-executor1 5537 185964 0 0 3 0x14200 bored sosplice 91180 216623 7823 0 2 0x482 syz-executor0 32526 487160 7823 0 3 0x82 nanosleep syz-executor1 7823 282620 26960 0 3 0x82 thrsleep syz-fuzzer 7823 210988 26960 0 3 0x4000082 thrsleep syz-fuzzer 7823 442180 26960 0 3 0x4000082 thrsleep syz-fuzzer 7823 380410 26960 0 3 0x4000082 thrsleep syz-fuzzer 7823 86343 26960 0 3 0x4000082 thrsleep syz-fuzzer 7823 135133 26960 0 3 0x4000082 kqread syz-fuzzer 7823 119796 26960 0 3 0x4000082 thrsleep syz-fuzzer 26960 250383 60387 0 3 0x10008a pause ksh 60387 63117 86568 0 3 0x92 select sshd 81253 507967 1 0 3 0x100083 ttyin getty 86568 28893 1 0 3 0x80 select sshd 74727 151427 72747 73 2 0x100090 syslogd 72747 382969 1 0 3 0x100082 netio syslogd 35598 262973 1 77 3 0x100090 poll dhclient 17945 490682 1 0 3 0x80 poll dhclient 82043 384090 0 0 2 0x14200 zerothread 15597 3388 0 0 3 0x14200 aiodoned aiodoned 50934 277030 0 0 3 0x14200 syncer update 51342 247838 0 0 3 0x14200 cleaner cleaner 83844 209430 0 0 3 0x14200 reaper reaper 90789 368661 0 0 3 0x14200 pgdaemon pagedaemon 95236 356307 0 0 3 0x14200 bored crynlk 19237 415361 0 0 3 0x14200 bored crypto 15767 142265 0 0 3 0x40014200 acpi0 acpi0 15592 154210 0 0 3 0x14200 bored softnet 45680 286367 0 0 3 0x14200 bored systqmp 35563 365856 0 0 3 0x14200 bored systq 53092 49630 0 0 3 0x40014200 bored softclock 67940 37824 0 0 3 0x40014200 idle0 1 214028 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper