uvm_fault(0xffffffff82516880, 0xffff800000acc000, 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(0xffffffff82516880, 0xffff800000acc000, 0, 1) -> e uvm_unmap_remove(ffff800000acbf00,0,80000000,ffff80001593aad8,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:496 [inline] uvm_unmap_remove(ffff800000acbf00,0,80000000,ffff80001593aad8,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2215 end trace frame: 0xffff80001593ab10, count: 0 ddb> trace uvm_unmap_remove(ffff800000acbf00,0,80000000,ffff80001593aad8,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:496 [inline] uvm_unmap_remove(ffff800000acbf00,0,80000000,ffff80001593aad8,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2215 uvm_map_deallocate(ffff800000acbf00) at uvm_map_deallocate+0x6e sys/uvm/uvm_map.c:4231 vm_impl_init_vmx(ffff80001488d868,ffff800015929160) at vm_impl_init_vmx+0x1e0 vm_create(ffff800000aa3800,ffff800015929160) at vm_create+0x182 vm_impl_init sys/arch/amd64/amd64/vmm.c:1376 [inline] vm_create(ffff800000aa3800,ffff800015929160) at vm_create+0x182 sys/arch/amd64/amd64/vmm.c:1164 VOP_IOCTL(fffffd8036648270,c5005601,ffff800000aa3800,1,fffffd803f7c6720,ffff800015929160) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802b145350,c5005601,ffff800000aa3800,ffff800015929160) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff800015929160,ffff80001593aeb8,ffff80001593af00) at sys_ioctl+0x5b9 syscall(ffff80001593af80) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff59,0,3,2b2de169010) at Xsyscall+0x128 end of kernel end trace frame: 0x2b4e1aba5f0, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001593aac0 rbx 0 rdx 0x169a __ALIGN_SIZE+0x69a rcx 0xffff800014921000 rax 0xffff800000acbf00 r8 0x1 r9 0 r10 0x3c8d6579af9f1ecf r11 0xde5f12a8eab6ac56 r12 0 r13 0xfffffd80051654c8 r14 0 r15 0xffff800000acbf00 rip 0xffffffff81dfd0bb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001593aa10 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=413223 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800015928c70,0xffff800015928ef8 process=0xffff8000ffff6d90 user=0xffff800015936000, vmspace=0xfffffd803f013330 estcpu=36, cpticks=3, pctcpu=0.0 user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 3121 58032 28545 0 2 0 syz-executor.1 * 3121 413223 28545 0 7 0x4000000 syz-executor.1 3121 266764 28545 0 3 0x4000080 fsleep syz-executor.1 75485 198245 80071 0 2 0 syz-executor.0 75485 24655 80071 0 3 0x4000080 ttyin syz-executor.0 75485 389457 80071 0 3 0x4000080 fsleep syz-executor.0 51460 251750 0 0 3 0x14200 acct acct 15138 311103 0 0 3 0x14200 bored sosplice 80071 477387 90446 0 2 0x482 syz-executor.0 28545 419775 90446 0 2 0x482 syz-executor.1 90446 73530 25676 0 3 0x82 thrsleep syz-fuzzer 90446 222767 25676 0 3 0x4000082 thrsleep syz-fuzzer 90446 285657 25676 0 3 0x4000082 kqread syz-fuzzer 90446 229131 25676 0 3 0x4000082 thrsleep syz-fuzzer 90446 516723 25676 0 3 0x4000082 thrsleep syz-fuzzer 90446 218627 25676 0 3 0x4000082 thrsleep syz-fuzzer 90446 72129 25676 0 3 0x4000082 thrsleep syz-fuzzer 25676 435471 46229 0 3 0x10008a pause ksh 46229 371098 35080 0 3 0x92 select sshd 1208 401322 1 0 3 0x100083 ttyin getty 35080 458948 1 0 3 0x80 select sshd 22924 276240 33487 73 2 0x100090 syslogd 33487 132891 1 0 3 0x100082 netio syslogd 14614 297316 1 77 3 0x100090 poll dhclient 17296 80517 1 0 3 0x80 poll dhclient 84791 147124 0 0 2 0x14200 zerothread 88201 24190 0 0 3 0x14200 aiodoned aiodoned 55095 469914 0 0 3 0x14200 syncer update 52731 124772 0 0 3 0x14200 cleaner cleaner 37981 421291 0 0 3 0x14200 reaper reaper 72394 307992 0 0 3 0x14200 pgdaemon pagedaemon 95800 502579 0 0 3 0x14200 bored crynlk 88252 287179 0 0 3 0x14200 bored crypto 26238 251063 0 0 3 0x40014200 acpi0 acpi0 59220 422208 0 0 3 0x14200 bored softnet 1751 464156 0 0 3 0x14200 bored systqmp 31185 198588 0 0 3 0x14200 bored systq 41198 114424 0 0 3 0x40014200 bored softclock 90710 489839 0 0 3 0x40014200 idle0 45714 80545 0 0 3 0x14200 bored smr 1 64987 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 9481 6332K 6848K 78643K 11636 0 0 pcb 13 8K 8K 78643K 74 0 0 rtable 113 4K 4K 78643K 270 0 0 ifaddr 48 11K 12K 78643K 74 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 1 2K 2K 78643K 41 0 0 iov 0 0K 28K 78643K 60 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1218 77K 77K 78643K 1595 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 6 0 0 VM map 3 0K 0K 78643K 6 0 0 sem 12 1K 1K 78643K 28 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 423 0 0 sigio 0 0K 0K 78643K 6 0 0 proc 48 38K 63K 78643K 383 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 66 0 0 in_multi 33 2K 2K 78643K 51 0 0 ether_multi 1 0K 0K 78643K 3 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 60 265K 265K 78643K 60 0 0 exec 0 0K 1K 78643K 209 0 0 pfkey data 0 0K 0K 78643K 2 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 93 21K 23K 78643K 1936 0 0 UVM aobj 38 2K 2K 78643K 40 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 33 0 0 NDP 9 0K 0K 78643K 20 0 0 temp 135 3527K 3595K 78643K 30278 0 0 kqueue 0 0K 0K 78643K 6 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 7 0 0 1 0 1 1 0 8 0 rtpcb 80 37 0 35 1 0 1 1 0 8 0 rtentry 112 46 0 1 2 0 2 2 0 8 0 unpcb 120 199 0 190 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 6522 0 6522 1 1 0 1 0 8 0 tcpcb 544 98 0 94 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 0 1 0 1 1 0 8 0 inpcb 280 295 0 286 4 2 2 2 0 8 1 nd6 48 4 0 0 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 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 256 213 0 0 14 0 14 14 0 8 0 art_table 32 214 0 0 2 0 2 2 0 8 0 art_node 16 45 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 5 1 0 1 1 0 8 0 semapl 112 26 0 16 1 0 1 1 0 8 0 shmpl 112 38 0 2 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2176 0 781 46 0 46 46 0 8 0 ffsino 240 2176 0 781 83 0 83 83 0 8 0 nchpl 144 3073 0 1457 61 0 61 61 0 8 0 uvmvnodes 72 2493 0 0 46 0 46 46 0 8 0 vnodes 208 2493 0 0 132 0 132 132 0 8 0 namei 1024 8975 0 8975 3 2 1 1 0 8 1 vmpool 520 4 0 3 2 1 1 1 0 8 0 scxspl 192 9155 0 9155 11 10 1 7 0 8 1 plimitpl 152 75 0 68 1 0 1 1 0 8 0 sigapl 432 594 0 580 2 0 2 2 0 8 0 futexpl 56 10325 0 10323 1 0 1 1 0 8 0 knotepl 112 136 0 117 1 0 1 1 0 8 0 kqueuepl 104 260 0 258 1 0 1 1 0 8 0 pipepl 112 414 0 395 3 1 2 2 0 8 1 fdescpl 424 595 0 580 2 0 2 2 0 8 0 filepl 120 4594 0 4489 7 2 5 5 0 8 1 lockfpl 104 1518 0 1513 1 0 1 1 0 8 0 lockfspl 48 221 0 219 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 96 553 0 546 1 0 1 1 0 8 0 zombiepl 144 580 0 580 3 2 1 1 0 8 1 processpl 864 611 0 580 4 0 4 4 0 8 0 procpl 632 1250 0 1209 4 0 4 4 0 8 0 sosppl 128 13 0 13 3 2 1 1 0 8 1 sockpl 384 540 0 522 5 1 4 4 0 8 1 mcl64k 65536 242 0 242 30 29 1 29 0 8 1 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl12k 12288 12 0 12 2 1 1 1 0 8 1 mcl9k 9216 3 0 3 2 2 0 1 0 8 0 mcl8k 8192 11 0 11 2 1 1 1 0 8 1 mcl4k 4096 43 0 43 2 1 1 1 0 8 1 mcl2k2 2112 7 0 7 2 1 1 1 0 8 1 mcl2k 2048 50710 0 50662 22 15 7 16 0 8 0 mtagpl 80 16 0 7 2 1 1 1 0 8 0 mbufpl 256 85505 0 85402 23 15 8 19 0 8 0 bufpl 256 8292 0 2267 377 0 377 377 0 8 0 anonpl 16 69220 0 55226 83 17 66 72 0 62 9 amapchunkpl 152 3096 0 2985 20 12 8 14 0 158 2 amappl16 192 2944 0 2161 50 10 40 49 0 8 0 amappl15 184 9 0 8 1 0 1 1 0 8 0 amappl14 176 228 0 223 2 1 1 1 0 8 0 amappl13 168 1 0 1 1 1 0 1 0 8 0 amappl12 160 10 0 7 1 0 1 1 0 8 0 amappl11 152 48 0 37 1 0 1 1 0 8 0 amappl10 144 198 0 195 1 0 1 1 0 8 0 amappl9 136 578 0 572 1 0 1 1 0 8 0 amappl8 128 140 0 119 1 0 1 1 0 8 0 amappl7 120 225 0 218 1 0 1 1 0 8 0 amappl6 112 65 0 58 1 0 1 1 0 8 0 amappl5 104 134 0 124 1 0 1 1 0 8 0 amappl4 96 606 0 580 1 0 1 1 0 8 0 amappl3 88 530 0 519 1 0 1 1 0 8 0 amappl2 80 3984 0 3910 4 2 2 3 0 8 0 amappl1 72 20195 0 19768 28 19 9 20 0 8 0 amappl 80 1483 0 1444 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 39 0 2 1 0 1 1 0 8 0 uaddrrnd 24 599 0 580 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 599 0 580 1 0 1 1 0 8 0 vmmpekpl 168 8018 0 7990 2 0 2 2 0 8 0 vmmpepl 168 76857 0 74927 135 50 85 102 0 357 1 vmsppl 272 594 0 580 2 1 1 2 0 8 0 pdppl 4096 1204 0 1166 6 1 5 6 0 8 0 pvpl 32 233015 0 215865 257 36 221 227 0 265 82 pmappl 200 598 0 583 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 572 0 68 15 0 15 15 0 8 0