uvm_fault(0xffffff003f12c840, 0xd8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at killjobc+0x39: cmpq %r13,0xd8(%r12) ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xffffff003f12c840, 0xd8, 0, 1) -> e killjobc(ffff8000149d02f8) at killjobc+0x39 sys/kern/kern_proc.c:410 end trace frame: 0xffff800014ace9e0, count: 0 ddb> trace killjobc(ffff8000149d02f8) at killjobc+0x39 sys/kern/kern_proc.c:410 exit1(ffff800014a33c30,9,0) at exit1+0x24b sys/kern/kern_exit.c:200 postsig(100,ffff800014a33c30) at postsig+0x3cc sigexit sys/kern/kern_sig.c:1500 [inline] postsig(100,ffff800014a33c30) at postsig+0x3cc sys/kern/kern_sig.c:1432 userret(ffff800014acebd0) at userret+0xff sys/kern/kern_sig.c:1882 syscall(0) at syscall+0x45f mi_syscall_return sys/sys/syscall_mi.h:122 [inline] syscall(0) at syscall+0x45f sys/arch/amd64/amd64/trap.c:605 Xsyscall(6,b,9,b,12e17d,8e89f970000) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff4090, count: -6 ddb> show registers rdi 0xffff8000149d02f8 rsi 0x198 rbp 0xffff800014ace980 rbx 0xffffff0035f7de18 rdx 0 rcx 0xffffff002d157110 rax 0 r8 0 r9 0 r10 0 r11 0xffffffff813e6600 pool_lock_mtx_leave r12 0 r13 0xffffff00376888c0 r14 0xffff8000149d02f8 r15 0xffffff002cfab1b0 rip 0xffffffff813ca7d9 killjobc+0x39 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff800014ace960 ss 0x10 killjobc+0x39: cmpq %r13,0xd8(%r12) ddb> show proc PROC (syz-executor0) pid=389689 stat=onproc flags process=a proc=2000 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800014a339d8,0xffff8000ffffcbd0 process=0xffff8000149d02f8 user=0xffff800014ac9000, vmspace=0xffffff003f12c840 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 72054 90422 47561 0 4 0x82010 syz-executor0 72054 478036 47561 0 2 0x4082010 syz-executor0 72054 57742 47561 0 3 0x4082010 inode syz-executor0 72054 55370 47561 0 3 0x4082010 inode syz-executor0 72054 195698 47561 0 3 0x4002010 suspend syz-executor0 73375 4565 1 0 3 0x100083 ttyin getty 9857 521346 0 0 3 0x14200 bored sosplice 42102 193871 68623 0 3 0x82 piperd syz-executor1 68623 190627 24196 0 3 0x82 thrsleep syz-fuzzer 68623 385594 24196 0 3 0x4000082 nanosleep syz-fuzzer 68623 302991 24196 0 3 0x4000082 thrsleep syz-fuzzer 68623 394775 24196 0 2 0x4000082 syz-fuzzer 68623 427046 24196 0 2 0x4000002 syz-fuzzer 68623 16683 24196 0 3 0x4000082 thrsleep syz-fuzzer 68623 208500 24196 0 3 0x4000082 thrsleep syz-fuzzer 24196 46828 59855 0 3 0x10008a pause ksh 59855 171795 91914 0 3 0x92 select sshd 91914 330944 1 0 3 0x80 select sshd 14528 371606 50435 73 2 0x100010 syslogd 50435 88159 1 0 3 0x100082 netio syslogd 53097 48074 1 77 3 0x100090 poll dhclient 60566 153483 1 0 3 0x80 poll dhclient 38416 505064 0 0 3 0x14200 pgzero zerothread 34178 209095 0 0 3 0x14200 aiodoned aiodoned 62317 102611 0 0 3 0x14200 syncer update 74567 436645 0 0 3 0x14200 cleaner cleaner 69828 403084 0 0 3 0x14200 reaper reaper 56801 352078 0 0 3 0x14200 pgdaemon pagedaemon 99456 123136 0 0 3 0x14200 bored crynlk 76353 241709 0 0 3 0x14200 bored crypto 59210 383566 0 0 3 0x40014200 acpi0 acpi0 68431 11315 0 0 3 0x14200 bored softnet 1212 308051 0 0 3 0x14200 bored systqmp 41116 81364 0 0 3 0x14200 bored systq 86977 243047 0 0 3 0x40014200 bored softclock 25294 199213 0 0 3 0x40014200 idle0 1 440949 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper