uvm_fault(0xffffffff82542bb0, 0xffff800000ba1000, 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(0xffffffff82542bb0, 0xffff800000ba1000, 0, 1) -> e uvm_unmap_remove(ffff800000ba0f00,0,80000000,ffff80001595be58,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000ba0f00,0,80000000,ffff80001595be58,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 end trace frame: 0xffff80001595be90, count: 0 ddb> trace uvm_unmap_remove(ffff800000ba0f00,0,80000000,ffff80001595be58,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000ba0f00,0,80000000,ffff80001595be58,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 uvm_map_deallocate(ffff800000ba0f00) at uvm_map_deallocate+0x6e sys/uvm/uvm_map.c:4233 vm_impl_init_vmx(ffff8000148fdc70,ffff8000159333d8) at vm_impl_init_vmx+0x1e0 vm_create(ffff800000a91000,ffff8000159333d8) at vm_create+0x182 vm_impl_init sys/arch/amd64/amd64/vmm.c:1376 [inline] vm_create(ffff800000a91000,ffff8000159333d8) at vm_create+0x182 sys/arch/amd64/amd64/vmm.c:1164 VOP_IOCTL(fffffd803a37b750,c5005601,ffff800000a91000,1,fffffd803f7c6ae0,ffff8000159333d8) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802ed90010,c5005601,ffff800000a91000,ffff8000159333d8) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff8000159333d8,ffff80001595c238,ffff80001595c280) at sys_ioctl+0x5b9 syscall(ffff80001595c300) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff59,0,3,1739ed3b010) at Xsyscall+0x128 end of kernel end trace frame: 0x176433c1420, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001595be40 rbx 0 rdx 0x19cd __ALIGN_SIZE+0x9cd rcx 0xffff800017b3f000 rax 0xffff800000ba0f00 r8 0x1 r9 0 r10 0xf68e7dcf89abf812 r11 0xc9d7409195cf60ed r12 0 r13 0xfffffd8030c02578 r14 0 r15 0xffff800000ba0f00 rip 0xffffffff813897cb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001595bd90 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=150221 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000159338c8,0xffffffff825545b0 process=0xffff8000ffff6a30 user=0xffff800015957000, vmspace=0xfffffd803f013bb0 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 55023 221843 49339 0 2 0 syz-executor.1 *55023 150221 49339 0 7 0x4000000 syz-executor.1 89329 381258 0 0 3 0x14200 acct acct 49339 299030 82238 0 2 0x482 syz-executor.1 52681 103224 0 0 3 0x14200 bored sosplice 10303 239539 82238 0 2 0x2 syz-executor.0 82238 215037 19234 0 3 0x82 thrsleep syz-fuzzer 82238 128717 19234 0 2 0x4000482 syz-fuzzer 82238 60262 19234 0 3 0x4000082 thrsleep syz-fuzzer 82238 374229 19234 0 3 0x4000082 thrsleep syz-fuzzer 82238 54537 19234 0 3 0x4000082 thrsleep syz-fuzzer 82238 256102 19234 0 3 0x4000082 kqread syz-fuzzer 82238 507768 19234 0 3 0x4000082 thrsleep syz-fuzzer 19234 402504 25804 0 3 0x10008a pause ksh 25804 240511 71011 0 3 0x92 select sshd 58671 59946 1 0 3 0x100083 ttyin getty 71011 70700 1 0 3 0x80 select sshd 15586 231393 72290 73 2 0x100090 syslogd 72290 254051 1 0 3 0x100082 netio syslogd 7792 130839 1 77 3 0x100090 poll dhclient 4446 173832 1 0 3 0x80 poll dhclient 43295 300033 0 0 2 0x14200 zerothread 79447 196756 0 0 3 0x14200 aiodoned aiodoned 24757 28857 0 0 3 0x14200 syncer update 64485 421918 0 0 3 0x14200 cleaner cleaner 17231 16047 0 0 3 0x14200 reaper reaper 9440 496441 0 0 3 0x14200 pgdaemon pagedaemon 36324 102559 0 0 3 0x14200 bored crynlk 4941 394081 0 0 3 0x14200 bored crypto 67151 135211 0 0 3 0x40014200 acpi0 acpi0 12342 103090 0 0 3 0x14200 bored softnet 37190 357150 0 0 3 0x14200 bored systqmp 41292 502745 0 0 3 0x14200 bored systq 65956 335468 0 0 3 0x40014200 bored softclock 45882 238249 0 0 3 0x40014200 idle0 28542 511299 0 0 3 0x14200 bored smr 1 61319 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 Kern Lim devbuf 9510 6348K 7378K 78643K 14330 0 0 pcb 13 8K 8K 78643K 132 0 0 rtable 117 12K 12K 78643K 472 0 0 ifaddr 55 13K 13K 78643K 167 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 1 2K 2K 78643K 51 0 0 iov 0 0K 16K 78643K 120 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1217 76K 77K 78643K 2577 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 18 0 0 VM map 3 0K 0K 78643K 3 0 0 sem 12 0K 1K 78643K 143 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 938 0 0 sigio 0 0K 0K 78643K 12 0 0 proc 48 38K 63K 78643K 476 0 0 subproc 32 2K 2K 78643K 53 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 1920 0 0 in_multi 33 2K 2K 78643K 137 0 0 ether_multi 1 0K 0K 78643K 7 0 0 mrt 0 0K 0K 78643K 9 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 78 344K 344K 78643K 78 0 0 exec 0 0K 1K 78643K 279 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 99 21K 30K 78643K 3017 0 0 UVM aobj 49 2K 2K 78643K 54 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 104 0 0 NDP 11 0K 0K 78643K 47 0 0 temp 163 3535K 3604K 78643K 7995 0 0 kqueue 0 0K 0K 78643K 14 0 0 SYN cache 2 16K 16K 78643K 2 0 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 52 0 50 1 0 1 1 0 8 0 rtentry 112 59 0 14 2 0 2 2 0 8 0 unpcb 120 1794 0 1780 2 1 1 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 6781 0 6781 1 1 0 1 0 8 0 tcpcb 544 1191 0 1187 5 4 1 2 0 8 0 inpcb 280 1632 0 1625 3 1 2 3 0 8 1 rttmr 72 2 0 2 2 2 0 1 0 8 0 nd6 48 6 0 2 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 2 0 1 0 8 0 ppxss 1128 21 0 21 6 5 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 280 0 65 15 1 14 15 0 8 0 art_table 32 281 0 65 2 0 2 2 0 8 0 art_node 16 57 0 17 1 0 1 1 0 8 0 sysvmsgpl 40 22 0 10 1 0 1 1 0 8 0 semapl 112 141 0 131 1 0 1 1 0 8 0 shmpl 112 52 0 5 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2918 0 1521 46 0 46 46 0 8 0 ffsino 240 2918 0 1521 83 0 83 83 0 8 0 nchpl 144 4449 0 2861 60 0 60 60 0 8 0 uvmvnodes 72 4022 0 0 74 0 74 74 0 8 0 vnodes 208 4022 0 0 212 0 212 212 0 8 0 namei 1024 14369 0 14368 3 2 1 1 0 8 0 vmpool 520 1 0 0 1 0 1 1 0 8 0 scsiplug 64 3 0 3 1 0 1 1 0 8 1 scxspl 192 13567 0 13567 13 12 1 7 0 8 1 plimitpl 152 98 0 91 1 0 1 1 0 8 0 sigapl 432 1106 0 1093 2 0 2 2 0 8 0 futexpl 56 22616 0 22616 1 0 1 1 0 8 1 knotepl 112 235 0 216 1 0 1 1 0 8 0 kqueuepl 104 288 0 286 1 0 1 1 0 8 0 pipepl 112 498 0 479 4 3 1 2 0 8 0 fdescpl 424 1107 0 1093 2 0 2 2 0 8 0 filepl 120 9781 0 9682 8 3 5 6 0 8 2 lockfpl 104 402 0 401 1 0 1 1 0 8 0 lockfspl 48 131 0 130 1 0 1 1 0 8 0 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 28 0 18 1 0 1 1 0 8 0 ucredpl 96 1387 0 1379 1 0 1 1 0 8 0 zombiepl 144 1093 0 1093 3 2 1 1 0 8 1 processpl 864 1123 0 1093 4 0 4 4 0 8 0 procpl 632 2281 0 2244 4 0 4 4 0 8 0 sosppl 128 13 0 13 4 4 0 1 0 8 0 sockpl 384 3501 0 3478 10 5 5 6 0 8 2 mcl64k 65536 43 0 43 2 2 0 1 0 8 0 mcl16k 16384 3 0 3 3 3 0 1 0 8 0 mcl12k 12288 19 0 19 3 3 0 1 0 8 0 mcl9k 9216 11 0 11 3 3 0 1 0 8 0 mcl8k 8192 22 0 22 3 2 1 1 0 8 1 mcl4k 4096 89 0 89 2 1 1 1 0 8 1 mcl2k2 2112 5 0 5 2 2 0 1 0 8 0 mcl2k 2048 53852 0 53808 27 20 7 18 0 8 1 mtagpl 80 38 0 8 2 1 1 1 0 8 0 mbufpl 256 94934 0 94798 21 11 10 11 0 8 0 bufpl 256 9052 0 3957 319 0 319 319 0 8 0 anonpl 16 103643 0 89977 95 39 56 72 0 62 0 amapchunkpl 152 4535 0 4429 13 8 5 9 0 158 0 amappl16 192 5262 0 4496 59 20 39 51 0 8 0 amappl14 176 36 0 32 2 1 1 1 0 8 0 amappl13 168 8 0 7 1 0 1 1 0 8 0 amappl12 160 301 0 295 1 0 1 1 0 8 0 amappl11 152 44 0 33 1 0 1 1 0 8 0 amappl10 144 185 0 184 1 0 1 1 0 8 0 amappl9 136 1020 0 1013 1 0 1 1 0 8 0 amappl8 128 594 0 570 1 0 1 1 0 8 0 amappl7 120 211 0 207 1 0 1 1 0 8 0 amappl6 112 69 0 59 1 0 1 1 0 8 0 amappl5 104 437 0 425 1 0 1 1 0 8 0 amappl4 96 1037 0 1013 1 0 1 1 0 8 0 amappl3 88 442 0 436 1 0 1 1 0 8 0 amappl2 80 7993 0 7928 4 2 2 3 0 8 0 amappl1 72 28675 0 28271 28 19 9 20 0 8 0 amappl 80 2512 0 2475 1 0 1 1 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 53 0 5 1 0 1 1 0 8 0 uaddrrnd 24 1108 0 1093 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1108 0 1093 1 0 1 1 0 8 0 vmmpekpl 168 11258 0 11233 2 0 2 2 0 8 0 vmmpepl 168 135338 0 133526 152 67 85 106 0 357 5 vmsppl 272 1106 0 1093 2 1 1 2 0 8 0 pdppl 4096 2222 0 2186 6 1 5 6 0 8 0 pvpl 32 308925 0 292284 223 68 155 172 0 265 18 pmappl 200 1107 0 1093 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 497 0 50 13 0 13 13 0 8 0