uvm_fault(0xffffffff82538f58, 0xffff800000a21000, 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, 0xffff800000a21000, 0, 1) -> e uvm_unmap_remove(ffff800000a20f00,0,1ef000,ffff80001798f140,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a20f00,0,1ef000,ffff80001798f140,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 end trace frame: 0xffff80001798f1f0, count: 0 ddb> trace uvm_unmap_remove(ffff800000a20f00,0,1ef000,ffff80001798f140,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a20f00,0,1ef000,ffff80001798f140,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 uvm_share(ffff800000a20f00,0,7,fffffd803f012bb0,20000000,200000) at uvm_share+0x55b vm_impl_init_vmx(ffff8000148a1658,ffff8000ffff3b40) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1269 vm_create(ffff800000a3b800,ffff8000ffff3b40) at vm_create+0x193 vm_impl_init sys/arch/amd64/amd64/vmm.c:1384 [inline] vm_create(ffff800000a3b800,ffff8000ffff3b40) at vm_create+0x193 sys/arch/amd64/amd64/vmm.c:1173 VOP_IOCTL(fffffd8038c9c410,c5005601,ffff800000a3b800,1,fffffd803f7c69c0,ffff8000ffff3b40) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd80048d2d98,c5005601,ffff800000a3b800,ffff8000ffff3b40) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff8000ffff3b40,ffff80001798f598,ffff80001798f5e0) at sys_ioctl+0x5b9 syscall(ffff80001798f660) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa6564de1ea0, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001798f110 rbx 0 rdx 0x265a __ALIGN_SIZE+0x165a rcx 0xffff800015931000 rax 0xffff800000a20f00 r8 0 r9 0x1 r10 0xe600f727a1ae31d9 r11 0xc3e8f11c3fd88adb r12 0 r13 0xfffffd8029a9e378 r14 0x10000 __ALIGN_SIZE+0xf000 r15 0xffff800000a20f00 rip 0xffffffff815649cb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001798f060 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=511047 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2508,0xffffffff82545ea8 process=0xffff8000ffff6010 user=0xffff80001798a000, vmspace=0xfffffd803f012bb0 estcpu=36, cpticks=60, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 89689 507722 93945 0 2 0 syz-executor.1 *89689 511047 93945 0 7 0x4000000 syz-executor.1 31974 162454 0 0 3 0x14200 bored sosplice 93945 317361 87607 0 3 0x82 nanosleep syz-executor.1 68160 368491 87607 0 2 0x2 syz-executor.0 87607 147381 61191 0 3 0x82 thrsleep syz-fuzzer 87607 47771 61191 0 3 0x4000082 nanosleep syz-fuzzer 87607 93004 61191 0 3 0x4000082 kqread syz-fuzzer 87607 54126 61191 0 3 0x4000082 thrsleep syz-fuzzer 87607 461209 61191 0 3 0x4000082 thrsleep syz-fuzzer 87607 473319 61191 0 3 0x4000082 thrsleep syz-fuzzer 87607 198402 61191 0 3 0x4000082 thrsleep syz-fuzzer 87607 161763 61191 0 3 0x4000082 thrsleep syz-fuzzer 61191 379036 68268 0 3 0x10008a pause ksh 68268 209626 13299 0 3 0x92 select sshd 49756 11653 1 0 3 0x100083 ttyin getty 13299 382443 1 0 3 0x80 select sshd 38733 209047 90296 73 3 0x100090 kqread syslogd 90296 294319 1 0 3 0x100082 netio syslogd 30677 41210 1 77 3 0x100090 poll dhclient 99501 297517 1 0 3 0x80 poll dhclient 23168 498781 0 0 2 0x14200 zerothread 97263 244644 0 0 3 0x14200 aiodoned aiodoned 15098 57058 0 0 3 0x14200 syncer update 93467 340164 0 0 3 0x14200 cleaner cleaner 54976 414242 0 0 3 0x14200 reaper reaper 72086 146496 0 0 3 0x14200 pgdaemon pagedaemon 32659 407345 0 0 3 0x14200 bored crynlk 38989 395274 0 0 3 0x14200 bored crypto 31881 173238 0 0 3 0x40014200 acpi0 acpi0 75495 297028 0 0 3 0x14200 bored softnet 61834 121735 0 0 3 0x14200 bored systqmp 16640 323153 0 0 3 0x14200 bored systq 60920 453100 0 0 3 0x40014200 bored softclock 52173 446687 0 0 3 0x40014200 idle0 94614 198009 0 0 3 0x14200 bored smr 1 322218 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 9471 6394K 6780K 78643K 12245 0 pcb 13 8K 8K 78643K 77 0 rtable 108 3K 4K 78643K 245 0 ifaddr 52 12K 12K 78643K 81 0 counters 19 16K 16K 78643K 19 0 ioctlops 1 2K 2K 78643K 46 0 iov 0 0K 16K 78643K 1234 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 2130 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 5 1K 1K 78643K 5 0 sem 12 0K 0K 78643K 512 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 787 0 sigio 0 0K 0K 78643K 4 0 proc 48 38K 63K 78643K 398 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 563 0 in_multi 46 2K 2K 78643K 77 0 ether_multi 1 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 60 265K 265K 78643K 60 0 exec 0 0K 1K 78643K 199 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 120 38K 39K 78643K 2576 0 UVM aobj 18 2K 2K 78643K 20 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 60 0 NDP 7 0K 0K 78643K 17 0 temp 113 3014K 3078K 78643K 6747 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 6 0 0 1 0 1 1 0 8 0 rtpcb 80 41 0 39 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 1799 0 1790 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 332 0 332 1 1 0 1 0 8 0 tcpcb 544 398 0 394 2 0 2 2 0 8 1 ipq 40 2 0 2 1 1 0 1 0 8 0 ipqe 40 4 0 4 1 1 0 1 0 8 0 inpcb 280 620 0 613 5 1 4 4 0 8 3 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 211 0 0 14 0 14 14 0 8 0 art_table 32 212 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 54 0 35 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 510 0 500 1 0 1 1 0 8 0 shmpl 112 18 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3082 0 1680 46 0 46 46 0 8 0 ffsino 240 3082 0 1680 83 0 83 83 0 8 0 nchpl 144 4701 0 3084 61 0 61 61 0 8 0 uvmvnodes 72 3593 0 0 66 0 66 66 0 8 0 vnodes 208 3593 0 0 190 0 190 190 0 8 0 namei 1024 15127 0 15126 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 520 3 0 0 1 0 1 1 0 8 0 scxspl 192 11426 0 11426 9 7 2 7 0 8 2 plimitpl 152 36 0 29 1 0 1 1 0 8 0 sigapl 432 958 0 945 2 0 2 2 0 8 0 futexpl 56 25455 0 25455 1 0 1 1 0 8 1 knotepl 112 84 0 65 1 0 1 1 0 8 0 kqueuepl 104 54 0 51 1 0 1 1 0 8 0 pipepl 128 478 0 459 3 1 2 2 0 8 1 fdescpl 424 959 0 945 2 0 2 2 0 8 0 filepl 120 9842 0 9745 5 0 5 5 0 8 1 lockfpl 104 87 0 86 1 0 1 1 0 8 0 lockfspl 48 36 0 35 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 21 0 11 1 0 1 1 0 8 0 ucredpl 96 698 0 690 1 0 1 1 0 8 0 zombiepl 144 945 0 945 1 0 1 1 0 8 1 processpl 864 974 0 945 4 0 4 4 0 8 0 procpl 632 1842 0 1805 4 0 4 4 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 384 2464 0 2446 6 0 6 6 0 8 3 mcl64k 65536 40 0 40 5 4 1 4 0 8 1 mcl16k 16384 4 0 4 2 1 1 1 0 8 1 mcl12k 12288 12 0 12 2 1 1 1 0 8 1 mcl9k 9216 5 0 5 3 2 1 1 0 8 1 mcl8k 8192 17 0 15 2 1 1 1 0 8 0 mcl4k 4096 445 0 445 2 1 1 1 0 8 1 mcl2k2 2112 2 0 2 2 2 0 1 0 8 0 mcl2k 2048 68293 0 68235 21 13 8 17 0 8 0 mtagpl 80 5 0 2 2 1 1 1 0 8 0 mbufpl 256 114312 0 114175 16 6 10 11 0 8 0 bufpl 280 7530 0 2569 355 0 355 355 0 8 0 anonpl 16 91345 0 67312 99 2 97 97 0 62 0 amapchunkpl 152 3739 0 3572 11 4 7 11 0 158 0 amappl16 192 5057 0 3714 68 0 68 68 0 8 0 amappl15 184 50 0 46 1 0 1 1 0 8 0 amappl14 176 24 0 23 1 0 1 1 0 8 0 amappl13 168 9 0 8 2 1 1 1 0 8 0 amappl12 160 12 0 9 1 0 1 1 0 8 0 amappl11 152 51 0 38 1 0 1 1 0 8 0 amappl10 144 9 0 8 1 0 1 1 0 8 0 amappl9 136 958 0 954 1 0 1 1 0 8 0 amappl8 128 527 0 499 1 0 1 1 0 8 0 amappl7 120 90 0 80 1 0 1 1 0 8 0 amappl6 112 66 0 54 1 0 1 1 0 8 0 amappl5 104 146 0 134 1 0 1 1 0 8 0 amappl4 96 1167 0 1138 1 0 1 1 0 8 0 amappl3 88 130 0 123 1 0 1 1 0 8 0 amappl2 80 6852 0 6785 3 1 2 3 0 8 0 amappl1 72 25109 0 24692 27 18 9 20 0 8 0 amappl 80 2093 0 2047 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 19 0 2 1 0 1 1 0 8 0 uaddrrnd 24 962 0 945 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 962 0 945 1 0 1 1 0 8 0 vmmpekpl 168 9548 0 9523 2 0 2 2 0 8 0 vmmpepl 168 116705 0 114220 151 39 112 135 0 357 0 vmsppl 272 958 0 945 2 1 1 2 0 8 0 pdppl 4096 1930 0 1892 6 1 5 6 0 8 0 pvpl 32 267995 0 240401 225 2 223 223 0 265 0 pmappl 200 961 0 945 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 162 0 30 5 1 4 5 0 8 0