uvm_fault(0xffffffff8254f790, 0xffff800000b15000, 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(0xffffffff8254f790, 0xffff800000b15000, 0, 1) -> e uvm_unmap_remove(ffff800000b14f00,0,80000000,ffff800014916738,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000b14f00,0,80000000,ffff800014916738,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 end trace frame: 0xffff800014916770, count: 0 ddb> trace uvm_unmap_remove(ffff800000b14f00,0,80000000,ffff800014916738,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000b14f00,0,80000000,ffff800014916738,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 uvm_map_deallocate(ffff800000b14f00) at uvm_map_deallocate+0x6e sys/uvm/uvm_map.c:4233 vm_impl_init_vmx(ffff800016967c70,ffff8000ffff3b40) at vm_impl_init_vmx+0x1e0 vm_create(ffff800000ac2800,ffff8000ffff3b40) at vm_create+0x182 vm_impl_init sys/arch/amd64/amd64/vmm.c:1375 [inline] vm_create(ffff800000ac2800,ffff8000ffff3b40) at vm_create+0x182 sys/arch/amd64/amd64/vmm.c:1164 VOP_IOCTL(fffffd80361e9270,c5005601,ffff800000ac2800,1,fffffd803f7c6900,ffff8000ffff3b40) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd8038bfcc30,c5005601,ffff800000ac2800,ffff8000ffff3b40) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff8000ffff3b40,ffff800014916b18,ffff800014916b60) at sys_ioctl+0x5b9 syscall(ffff800014916be0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff59,0,3,1d5c5c2010) at Xsyscall+0x128 end of kernel end trace frame: 0x2000709730, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff800014916720 rbx 0 rdx 0x175d __ALIGN_SIZE+0x75d rcx 0xffff800017b4b000 rax 0xffff800000b14f00 r8 0x1 r9 0 r10 0x3f0f49daf1209ac7 r11 0x265e9b843db0ba16 r12 0 r13 0xfffffd802ee3ce88 r14 0 r15 0xffff800000b14f00 rip 0xffffffff815451bb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800014916670 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=372628 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2290,0xffffffff8258e3e0 process=0xffff8000ffff7b10 user=0xffff800014911000, vmspace=0xfffffd803f013110 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 94186 367743 62991 0 2 0 syz-executor.1 *94186 372628 62991 0 7 0x4000000 syz-executor.1 62991 456900 4594 0 3 0x82 nanosleep syz-executor.1 36625 177384 0 0 3 0x14200 bored sosplice 40319 373803 4594 0 2 0x2 syz-executor.0 4594 394423 222 0 3 0x82 thrsleep syz-fuzzer 4594 419021 222 0 3 0x4000082 nanosleep syz-fuzzer 4594 8896 222 0 3 0x4000082 kqread syz-fuzzer 4594 210753 222 0 3 0x4000082 thrsleep syz-fuzzer 4594 32007 222 0 3 0x4000082 thrsleep syz-fuzzer 4594 39638 222 0 3 0x4000082 thrsleep syz-fuzzer 4594 314966 222 0 3 0x4000082 thrsleep syz-fuzzer 4594 89999 222 0 3 0x4000082 thrsleep syz-fuzzer 222 169084 70896 0 3 0x10008a pause ksh 70896 407087 24404 0 3 0x92 select sshd 90514 355102 1 0 3 0x100083 ttyin getty 24404 216827 1 0 3 0x80 select sshd 62041 62731 57689 73 2 0x100090 syslogd 57689 2692 1 0 3 0x100082 netio syslogd 91401 221807 1 77 3 0x100090 poll dhclient 81919 487431 1 0 3 0x80 poll dhclient 75389 392316 0 0 2 0x14200 zerothread 33135 120014 0 0 3 0x14200 aiodoned aiodoned 75672 369700 0 0 3 0x14200 syncer update 36968 506805 0 0 3 0x14200 cleaner cleaner 71712 112133 0 0 3 0x14200 reaper reaper 70872 379829 0 0 3 0x14200 pgdaemon pagedaemon 51332 277552 0 0 3 0x14200 bored crynlk 55543 37870 0 0 3 0x14200 bored crypto 89581 512414 0 0 3 0x40014200 acpi0 acpi0 50339 311920 0 0 3 0x14200 bored softnet 89717 182803 0 0 3 0x14200 bored systqmp 69543 454037 0 0 3 0x14200 bored systq 72731 398102 0 0 3 0x40014200 bored softclock 11432 223743 0 0 3 0x40014200 idle0 7053 496590 0 0 3 0x14200 bored smr 1 300423 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 9515 6469K 6975K 78643K 13426 0 0 pcb 13 8K 8K 78643K 197 0 0 rtable 99 11K 12K 78643K 492 0 0 ifaddr 57 13K 14K 78643K 161 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 1 2K 2K 78643K 83 0 0 iov 0 0K 32K 78643K 2100 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1216 76K 77K 78643K 2222 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 16 0 0 VM map 3 0K 0K 78643K 4 0 0 sem 12 0K 0K 78643K 170 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 1210 0 0 sigio 0 0K 0K 78643K 11 0 0 proc 49 38K 63K 78643K 520 0 0 subproc 32 2K 2K 78643K 72 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 130 0 0 in_multi 23 1K 2K 78643K 106 0 0 ether_multi 1 0K 0K 78643K 7 0 0 mrt 0 0K 0K 78643K 4 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 84 371K 371K 78643K 84 0 0 exec 0 0K 1K 78643K 340 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 98 21K 27K 78643K 3673 0 0 UVM aobj 40 2K 2K 78643K 42 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 172 0 0 NDP 12 0K 0K 78643K 45 0 0 temp 170 3531K 3599K 78643K 28694 0 0 kqueue 0 0K 0K 78643K 10 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 9 0 5 1 0 1 1 0 8 0 rtpcb 80 89 0 87 1 0 1 1 0 8 0 rtentry 112 73 0 39 2 0 2 2 0 8 0 unpcb 120 547 0 537 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 5959 0 5959 1 1 0 1 0 8 0 tcpcb 544 260 0 256 1 0 1 1 0 8 0 ipq 40 2 0 2 1 0 1 1 0 8 1 ipqe 40 4 0 4 1 0 1 1 0 8 1 inpcb 280 854 0 847 3 1 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 8 0 6 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 2 0 1 0 8 0 ppxss 1128 19 0 19 4 3 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 338 0 167 18 5 13 16 0 8 2 art_table 32 339 0 167 3 0 3 3 0 8 0 art_node 16 68 0 37 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 168 0 158 1 0 1 1 0 8 0 shmpl 112 40 0 2 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3186 0 1795 46 0 46 46 0 8 0 ffsino 240 3186 0 1795 83 0 83 83 0 8 0 nchpl 144 5066 0 3458 61 0 61 61 0 8 0 uvmvnodes 72 3949 0 0 72 0 72 72 0 8 0 vnodes 208 3949 0 0 208 0 208 208 0 8 0 namei 1024 17187 0 17187 3 2 1 1 0 8 1 vmpool 520 2 0 1 1 0 1 1 0 8 0 scxspl 192 15051 0 15051 12 11 1 7 0 8 1 plimitpl 152 109 0 102 1 0 1 1 0 8 0 sigapl 432 1375 0 1362 2 0 2 2 0 8 0 futexpl 56 26818 0 26818 1 0 1 1 0 8 1 knotepl 112 315 0 296 1 0 1 1 0 8 0 kqueuepl 104 331 0 329 1 0 1 1 0 8 0 pipepl 112 866 0 847 4 2 2 2 0 8 1 fdescpl 424 1376 0 1362 2 0 2 2 0 8 0 filepl 120 10566 0 10469 7 1 6 6 0 8 3 lockfpl 104 402 0 401 1 0 1 1 0 8 0 lockfspl 48 134 0 133 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 33 0 23 1 0 1 1 0 8 0 ucredpl 96 1453 0 1446 1 0 1 1 0 8 0 zombiepl 144 1363 0 1363 3 2 1 1 0 8 1 processpl 864 1392 0 1363 4 0 4 4 0 8 0 procpl 632 2887 0 2850 4 0 4 4 0 8 0 sosppl 128 14 0 14 2 1 1 1 0 8 1 sockpl 384 1508 0 1489 5 1 4 4 0 8 1 mcl64k 65536 33 0 33 5 4 1 1 0 8 1 mcl16k 16384 6 0 6 5 4 1 1 0 8 1 mcl12k 12288 25 0 25 2 1 1 1 0 8 1 mcl9k 9216 10 0 10 6 5 1 1 0 8 1 mcl8k 8192 34 0 34 2 1 1 1 0 8 1 mcl4k 4096 115 0 115 2 1 1 1 0 8 1 mcl2k2 2112 17 0 17 2 2 0 1 0 8 0 mcl2k 2048 58732 0 58692 17 10 7 14 0 8 1 mtagpl 80 35 0 29 2 1 1 1 0 8 0 mbufpl 256 101673 0 101586 17 9 8 10 0 8 1 bufpl 256 9784 0 3683 382 0 382 382 0 8 0 anonpl 16 131255 0 117302 102 33 69 74 0 62 10 amapchunkpl 152 6169 0 6065 36 27 9 29 0 158 3 amappl16 192 6771 0 5961 67 18 49 53 0 8 8 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 426 0 422 2 1 1 1 0 8 0 amappl13 168 761 0 760 1 0 1 1 0 8 0 amappl12 160 9 0 6 2 1 1 1 0 8 0 amappl11 152 50 0 39 1 0 1 1 0 8 0 amappl10 144 13 0 12 1 0 1 1 0 8 0 amappl9 136 605 0 598 1 0 1 1 0 8 0 amappl8 128 176 0 152 1 0 1 1 0 8 0 amappl7 120 43 0 38 1 0 1 1 0 8 0 amappl6 112 69 0 60 1 0 1 1 0 8 0 amappl5 104 180 0 168 1 0 1 1 0 8 0 amappl4 96 1453 0 1426 1 0 1 1 0 8 0 amappl3 88 855 0 849 1 0 1 1 0 8 0 amappl2 80 10692 0 10626 4 2 2 3 0 8 0 amappl1 72 33162 0 32756 28 19 9 20 0 8 0 amappl 80 3137 0 3102 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 41 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1378 0 1362 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1378 0 1362 1 0 1 1 0 8 0 vmmpekpl 168 11736 0 11711 2 0 2 2 0 8 0 vmmpepl 168 166934 0 165089 163 52 111 111 0 357 28 vmsppl 272 1375 0 1362 2 1 1 2 0 8 0 pdppl 4096 2762 0 2726 6 1 5 6 0 8 0 pvpl 32 413313 0 396263 253 71 182 236 0 265 40 pmappl 200 1377 0 1363 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 549 0 40 15 0 15 15 0 8 0