uvm_fault(0xffffffff82538f58, 0xffff800000a3d000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff82538f58, 0xffff800000a3d000, 0, 1) -> e uvm_unmap_remove(ffff800000a3cf00,0,71c000,ffff800016b59ca0,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a3cf00,0,71c000,ffff800016b59ca0,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 end trace frame: 0xffff800016b59d50, count: 0 ddb> trace uvm_unmap_remove(ffff800000a3cf00,0,71c000,ffff800016b59ca0,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a3cf00,0,71c000,ffff800016b59ca0,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 uvm_share(ffff800000a3cf00,0,7,fffffd803f012330,20000000,80000000) at uvm_share+0x55b vm_impl_init_vmx(ffff800016b64c38,ffff8000ffff3650) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1269 vm_create(ffff800000a57000,ffff8000ffff3650) at vm_create+0x193 vm_impl_init sys/arch/amd64/amd64/vmm.c:1384 [inline] vm_create(ffff800000a57000,ffff8000ffff3650) at vm_create+0x193 sys/arch/amd64/amd64/vmm.c:1173 VOP_IOCTL(fffffd8037e7d340,c5005601,ffff800000a57000,1,fffffd803f7c69c0,ffff8000ffff3650) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802cf6e888,c5005601,ffff800000a57000,ffff8000ffff3650) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff8000ffff3650,ffff800016b5a0f8,ffff800016b5a140) at sys_ioctl+0x5b9 syscall(ffff800016b5a1c0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd6bf4487220, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff800016b59c70 rbx 0 rdx 0x5d2 rcx 0xffff800016b66000 rax 0xffff800000a3cf00 r8 0 r9 0x1 r10 0xd80032dcd7300ff1 r11 0x3b84e03c3ebab643 r12 0 r13 0xfffffd802d66de20 r14 0x10000 __ALIGN_SIZE+0xf000 r15 0xffff800000a3cf00 rip 0xffffffff815649cb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800016b59bc0 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=213035 stat=onproc flags process=0 proc=4000000 pri=77, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2ee8,0xffffffff82545ea8 process=0xffff8000ffffb448 user=0xffff800016b55000, vmspace=0xfffffd803f012330 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 14960 20672 13222 0 2 0 syz-executor.1 *14960 213035 13222 0 7 0x4000000 syz-executor.1 79977 449200 0 0 3 0x14200 acct acct 13222 360094 8969 0 3 0x82 nanosleep syz-executor.1 2116 510420 1 0 3 0x100083 ttyin getty 83948 277052 0 0 3 0x14200 bored sosplice 73615 132802 8969 0 2 0x2 syz-executor.0 8969 231511 1815 0 3 0x82 thrsleep syz-fuzzer 8969 245267 1815 0 2 0x4000482 syz-fuzzer 8969 271388 1815 0 3 0x4000082 kqread syz-fuzzer 8969 39021 1815 0 3 0x4000082 thrsleep syz-fuzzer 8969 438810 1815 0 3 0x4000082 thrsleep syz-fuzzer 8969 489048 1815 0 3 0x4000082 thrsleep syz-fuzzer 8969 287986 1815 0 3 0x4000082 thrsleep syz-fuzzer 8969 290806 1815 0 3 0x4000082 thrsleep syz-fuzzer 1815 302539 4756 0 3 0x10008a pause ksh 4756 501686 47615 0 3 0x92 select sshd 47615 248874 1 0 3 0x80 select sshd 46881 291727 8126 73 3 0x100090 kqread syslogd 8126 163486 1 0 3 0x100082 netio syslogd 95317 180815 1 77 3 0x100090 poll dhclient 25011 467144 1 0 3 0x80 poll dhclient 44562 54721 0 0 2 0x14200 zerothread 55122 207461 0 0 3 0x14200 aiodoned aiodoned 96239 78101 0 0 3 0x14200 syncer update 26888 158358 0 0 3 0x14200 cleaner cleaner 59175 311754 0 0 3 0x14200 reaper reaper 53339 99302 0 0 3 0x14200 pgdaemon pagedaemon 32717 342171 0 0 3 0x14200 bored crynlk 97742 489390 0 0 3 0x14200 bored crypto 4753 140493 0 0 3 0x40014200 acpi0 acpi0 19181 444360 0 0 3 0x14200 bored softnet 14116 230330 0 0 3 0x14200 bored systqmp 68748 206092 0 0 3 0x14200 bored systq 50357 42718 0 0 3 0x40014200 bored softclock 45275 328755 0 0 3 0x40014200 idle0 1036 202513 0 0 3 0x14200 bored smr 1 95406 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9506 6342K 6874K 78643K 11647 0 pcb 13 10K 12K 78643K 145 0 rtable 108 3K 4K 78643K 375 0 ifaddr 83 17K 18K 78643K 168 0 counters 19 16K 16K 78643K 19 0 ioctlops 1 2K 2K 78643K 49 0 iov 0 0K 24K 78643K 123 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 77K 78643K 1556 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 5 1K 1K 78643K 9 0 sem 12 0K 1K 78643K 98 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 586 0 sigio 0 0K 0K 78643K 368 0 proc 48 38K 54K 78643K 440 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 67 0 in_multi 111 4K 5K 78643K 151 0 ether_multi 1 0K 0K 78643K 5 0 mrt 0 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 72 318K 318K 78643K 72 0 exec 0 0K 1K 78643K 245 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 119 38K 42K 78643K 2218 0 UVM aobj 32 2K 2K 78643K 32 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 111 0 NDP 11 0K 0K 78643K 33 0 temp 130 3018K 3658K 78643K 7103 0 kqueue 0 0K 0K 78643K 8 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 8 0 2 1 0 1 1 0 8 0 rtpcb 80 49 0 47 1 0 1 1 0 8 0 rtentry 112 76 0 32 2 0 2 2 0 8 0 unpcb 120 476 0 468 2 1 1 2 0 8 0 syncache 264 10 0 10 4 3 1 1 0 8 1 tcpqe 32 154 0 154 3 2 1 1 0 8 1 tcpcb 544 592 0 587 21 15 6 14 0 8 5 ipq 40 6 0 6 2 1 1 1 0 8 1 ipqe 40 186 0 186 2 1 1 1 0 8 1 inpcb 280 1051 0 1043 12 6 6 9 0 8 5 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 10 0 7 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 8 0 8 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 373 0 160 16 1 15 15 0 8 0 art_table 32 375 0 160 2 0 2 2 0 8 0 art_node 16 75 0 34 1 0 1 1 0 8 0 sysvmsgpl 40 51 0 40 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 94 0 84 1 0 1 1 0 8 0 shmpl 112 30 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2203 0 803 46 0 46 46 0 8 0 ffsino 240 2203 0 803 83 0 83 83 0 8 0 nchpl 144 3169 0 1564 61 0 61 61 0 8 0 uvmvnodes 72 2495 0 0 46 0 46 46 0 8 0 vnodes 208 2495 0 0 132 0 132 132 0 8 0 namei 1024 9288 0 9287 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 520 7 0 4 2 1 1 1 0 8 0 scxspl 192 10453 0 10453 10 9 1 7 0 8 1 plimitpl 152 55 0 48 1 0 1 1 0 8 0 sigapl 432 755 0 742 2 0 2 2 0 8 0 futexpl 56 18555 0 18555 1 0 1 1 0 8 1 knotepl 112 148 0 129 1 0 1 1 0 8 0 kqueuepl 104 404 0 402 7 6 1 4 0 8 0 pipepl 128 1604 0 1585 3 1 2 3 0 8 1 fdescpl 424 756 0 742 2 0 2 2 0 8 0 filepl 120 6906 0 6810 14 6 8 11 0 8 4 lockfpl 104 189 0 188 1 0 1 1 0 8 0 lockfspl 48 65 0 64 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 502 0 492 1 0 1 1 0 8 0 ucredpl 96 530 0 523 1 0 1 1 0 8 0 zombiepl 144 742 0 742 1 0 1 1 0 8 1 processpl 864 772 0 742 4 0 4 4 0 8 0 procpl 632 1447 0 1409 4 0 4 4 0 8 0 sosppl 128 4 0 4 1 1 0 1 0 8 0 sockpl 384 1578 0 1560 22 14 8 14 0 8 5 mcl64k 65536 279 0 279 29 28 1 29 0 8 1 mcl16k 16384 9 0 9 3 2 1 1 0 8 1 mcl12k 12288 15 0 15 2 1 1 1 0 8 1 mcl9k 9216 7 0 7 2 2 0 1 0 8 0 mcl8k 8192 25 0 25 2 1 1 1 0 8 1 mcl4k 4096 60 0 60 2 1 1 1 0 8 1 mcl2k2 2112 2 0 2 2 1 1 1 0 8 1 mcl2k 2048 68963 0 68911 22 11 11 17 0 8 3 mtagpl 80 14 0 4 2 1 1 1 0 8 0 mbufpl 256 115141 0 114990 32 13 19 22 0 8 4 bufpl 280 7680 0 2712 356 0 356 356 0 8 0 anonpl 16 87582 0 67694 97 14 83 93 0 62 1 amapchunkpl 152 3449 0 3295 24 14 10 20 0 158 3 amappl16 192 3921 0 2815 64 7 57 64 0 8 1 amappl15 184 54 0 49 1 0 1 1 0 8 0 amappl14 176 40 0 37 1 0 1 1 0 8 0 amappl13 168 11 0 10 1 0 1 1 0 8 0 amappl12 160 4 0 3 2 1 1 1 0 8 0 amappl11 152 331 0 317 1 0 1 1 0 8 0 amappl10 144 8 0 7 2 1 1 1 0 8 0 amappl9 136 836 0 830 1 0 1 1 0 8 0 amappl8 128 358 0 329 1 0 1 1 0 8 0 amappl7 120 97 0 87 1 0 1 1 0 8 0 amappl6 112 288 0 282 1 0 1 1 0 8 0 amappl5 104 160 0 150 1 0 1 1 0 8 0 amappl4 96 912 0 879 1 0 1 1 0 8 0 amappl3 88 138 0 128 1 0 1 1 0 8 0 amappl2 80 4627 0 4559 3 1 2 3 0 8 0 amappl1 72 22092 0 21672 26 16 10 20 0 8 0 amappl 80 1696 0 1648 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 31 0 0 1 0 1 1 0 8 0 uaddrrnd 24 763 0 742 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 763 0 742 1 0 1 1 0 8 0 vmmpekpl 168 11320 0 11295 2 0 2 2 0 8 0 vmmpepl 168 96144 0 93925 179 42 137 140 0 357 40 vmsppl 272 755 0 742 2 1 1 2 0 8 0 pdppl 4096 1532 0 1494 7 2 5 6 0 8 0 pvpl 32 263989 0 241017 219 24 195 215 0 265 7 pmappl 200 762 0 746 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 227 0 77 6 0 6 6 0 8 0