uvm_fault(0xffffffff82542bb0, 0xffff800000ad5000, 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, 0xffff800000ad5000, 0, 1) -> e uvm_unmap_remove(ffff800000ad4f00,0,80000000,ffff80001594d378,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000ad4f00,0,80000000,ffff80001594d378,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 end trace frame: 0xffff80001594d3b0, count: 0 ddb> trace uvm_unmap_remove(ffff800000ad4f00,0,80000000,ffff80001594d378,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000ad4f00,0,80000000,ffff80001594d378,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 uvm_map_deallocate(ffff800000ad4f00) at uvm_map_deallocate+0x6e sys/uvm/uvm_map.c:4233 vm_impl_init_vmx(ffff800015941c70,ffff8000ffff2290) at vm_impl_init_vmx+0x1e0 vm_create(ffff800000ac4800,ffff8000ffff2290) at vm_create+0x182 vm_impl_init sys/arch/amd64/amd64/vmm.c:1376 [inline] vm_create(ffff800000ac4800,ffff8000ffff2290) at vm_create+0x182 sys/arch/amd64/amd64/vmm.c:1164 VOP_IOCTL(fffffd803653a4e0,c5005601,ffff800000ac4800,1,fffffd803f7c6900,ffff8000ffff2290) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd803474ada8,c5005601,ffff800000ac4800,ffff8000ffff2290) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff8000ffff2290,ffff80001594d758,ffff80001594d7a0) at sys_ioctl+0x5b9 syscall(ffff80001594d820) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff59,0,3,3e318899010) at Xsyscall+0x128 end of kernel end trace frame: 0x3e5fc8d96b0, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001594d360 rbx 0 rdx 0x173d __ALIGN_SIZE+0x73d rcx 0xffff800016b45000 rax 0xffff800000ad4f00 r8 0x1 r9 0 r10 0xcae257fe9ca1cc94 r11 0xcdfaa18bfc0ac2fe r12 0 r13 0xfffffd8032580060 r14 0 r15 0xffff800000ad4f00 rip 0xffffffff813897cb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001594d2b0 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.0) pid=114402 stat=onproc flags process=0 proc=4000000 pri=70, usrpri=70, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8280,0xffffffff825545b0 process=0xffff8000ffff66d0 user=0xffff800015948000, vmspace=0xfffffd803f013990 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 99759 399609 32411 0 2 0 syz-executor.0 *99759 114402 32411 0 7 0x4000000 syz-executor.0 32411 191530 47828 0 2 0x482 syz-executor.0 11878 318217 47828 0 2 0x482 syz-executor.1 47828 491904 53615 0 3 0x82 thrsleep syz-fuzzer 47828 439938 53615 0 3 0x4000082 thrsleep syz-fuzzer 47828 198806 53615 0 3 0x4000082 kqread syz-fuzzer 47828 167237 53615 0 3 0x4000082 thrsleep syz-fuzzer 47828 396132 53615 0 3 0x4000082 thrsleep syz-fuzzer 47828 329039 53615 0 3 0x4000082 thrsleep syz-fuzzer 47828 204569 53615 0 3 0x4000082 thrsleep syz-fuzzer 53615 421676 72153 0 3 0x10008a pause ksh 72153 171637 25735 0 3 0x92 select sshd 79106 50011 1 0 3 0x100083 ttyin getty 25735 499467 1 0 3 0x80 select sshd 41725 477735 72250 73 2 0x100010 syslogd 72250 419709 1 0 3 0x100082 netio syslogd 40182 189198 1 77 3 0x100090 poll dhclient 65026 229393 1 0 3 0x80 poll dhclient 28908 178518 0 0 2 0x14200 zerothread 42006 146547 0 0 3 0x14200 aiodoned aiodoned 23215 57564 0 0 3 0x14200 syncer update 66238 513902 0 0 3 0x14200 cleaner cleaner 13750 207207 0 0 3 0x14200 reaper reaper 86225 205885 0 0 3 0x14200 pgdaemon pagedaemon 6668 334431 0 0 3 0x14200 bored crynlk 28618 337361 0 0 3 0x14200 bored crypto 39567 368903 0 0 3 0x40014200 acpi0 acpi0 76418 62650 0 0 3 0x14200 bored softnet 35085 479453 0 0 3 0x14200 bored systqmp 51600 66855 0 0 3 0x14200 bored systq 59712 348216 0 0 3 0x40014200 bored softclock 45288 215153 0 0 3 0x40014200 idle0 86743 517260 0 0 3 0x14200 bored smr 1 418970 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 9443 6312K 6827K 78643K 10861 0 0 pcb 13 8K 8K 78643K 68 0 0 rtable 108 3K 3K 78643K 207 0 0 ifaddr 34 9K 9K 78643K 34 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 1 2K 2K 78643K 21 0 0 iov 0 0K 8K 78643K 74 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1215 76K 77K 78643K 1684 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 69 0 0 VM map 3 0K 0K 78643K 8 0 0 sem 10 1K 1K 78643K 10 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 416 0 0 proc 48 38K 63K 78643K 348 0 0 subproc 32 2K 2K 78643K 34 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 8 0 0 in_multi 33 2K 2K 78643K 33 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 48 212K 212K 78643K 48 0 0 exec 0 0K 1K 78643K 258 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 78 20K 20K 78643K 1744 0 0 UVM aobj 78 3K 3K 78643K 78 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 62 0 0 NDP 5 0K 0K 78643K 9 0 0 temp 120 3530K 3594K 78643K 4074 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 6 0 0 1 0 1 1 0 8 0 rtpcb 80 24 0 22 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 187 0 179 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 sackhl 24 2 0 2 1 1 0 1 0 8 0 tcpcb 544 197 0 193 1 0 1 1 0 8 0 inpcb 280 496 0 489 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 212 0 0 14 0 14 14 0 8 0 art_table 32 213 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 semupl 112 7 0 7 1 1 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 76 0 0 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2271 0 872 46 0 46 46 0 8 0 ffsino 240 2271 0 872 83 0 83 83 0 8 0 nchpl 144 3064 0 1452 60 0 60 60 0 8 0 uvmvnodes 72 2443 0 0 45 0 45 45 0 8 0 vnodes 208 2443 0 0 129 0 129 129 0 8 0 namei 1024 8182 0 8182 2 1 1 1 0 8 1 vmpool 520 6 0 5 1 0 1 1 0 8 0 scxspl 192 7365 0 7365 8 7 1 7 0 8 1 plimitpl 152 14 0 7 1 0 1 1 0 8 0 sigapl 432 587 0 574 2 0 2 2 0 8 0 futexpl 56 7624 0 7624 1 0 1 1 0 8 1 knotepl 112 53 0 34 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 112 282 0 263 2 1 1 1 0 8 0 fdescpl 424 588 0 574 2 0 2 2 0 8 0 filepl 120 3693 0 3597 4 0 4 4 0 8 1 lockfpl 104 116 0 115 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 17 0 7 1 0 1 1 0 8 0 ucredpl 96 982 0 975 1 0 1 1 0 8 0 zombiepl 144 574 0 573 2 1 1 1 0 8 0 processpl 864 602 0 573 4 0 4 4 0 8 0 procpl 632 1096 0 1060 4 0 4 4 0 8 0 sockpl 384 707 0 690 3 0 3 3 0 8 1 mcl12k 12288 67 0 67 1 1 0 1 0 8 0 mcl4k 4096 81 0 81 2 1 1 1 0 8 1 mcl2k 2048 11613 0 11580 12 5 7 9 0 8 2 mtagpl 80 26 0 2 2 1 1 1 0 8 0 mbufpl 256 26037 0 25852 16 3 13 13 0 8 0 bufpl 256 6662 0 1824 303 0 303 303 0 8 0 anonpl 16 45093 0 42103 17 4 13 13 0 62 0 amapchunkpl 152 2232 0 2153 6 2 4 6 0 158 0 amappl16 192 1761 0 1652 6 0 6 6 0 8 0 amappl15 184 9 0 7 1 0 1 1 0 8 0 amappl14 176 31 0 26 2 1 1 1 0 8 0 amappl12 160 202 0 198 1 0 1 1 0 8 0 amappl11 152 43 0 32 1 0 1 1 0 8 0 amappl10 144 201 0 198 1 0 1 1 0 8 0 amappl9 136 238 0 232 1 0 1 1 0 8 0 amappl8 128 134 0 117 1 0 1 1 0 8 0 amappl7 120 221 0 216 1 0 1 1 0 8 0 amappl6 112 66 0 59 1 0 1 1 0 8 0 amappl5 104 1012 0 1002 1 0 1 1 0 8 0 amappl4 96 792 0 770 1 0 1 1 0 8 0 amappl3 88 178 0 171 1 0 1 1 0 8 0 amappl2 80 3909 0 3844 3 1 2 3 0 8 0 amappl1 72 19950 0 19547 25 14 11 20 0 8 0 amappl 80 1307 0 1275 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 77 0 0 2 0 2 2 0 8 0 uaddrrnd 24 594 0 574 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 594 0 574 1 0 1 1 0 8 0 vmmpekpl 168 7333 0 7309 2 0 2 2 0 8 0 vmmpepl 168 73220 0 72091 88 33 55 76 0 357 1 vmsppl 272 587 0 574 3 2 1 2 0 8 0 pdppl 4096 1194 0 1158 6 1 5 6 0 8 0 pvpl 32 178602 0 172682 119 43 76 114 0 265 27 pmappl 200 593 0 579 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 448 0 15 13 0 13 13 0 8 0