VRKaA=6ZΠ䋄niߢ 5%fDF~tS?@O j.z_`bt`B G0`&#|OHVU8X;D\{dpْ+n!VRDvTmNA+panic: uvmspace_fork: no space in map for entry in empty map Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 227530 46288 0 0 0 0 syz-executor.1 * 15150 73839 0 0 0x4000000 1K syz-executor.0 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:207 uvm_mapent_clone(ffff800000abe800,1000,1000,0,7,7) at uvm_mapent_clone+0x1de sys/uvm/uvm_map.c:3708 uvm_share(ffff800000abe800,0,7,fffffd807f008b80,20002000,200000) at uvm_share+0x4b4 uvm_mapent_share sys/uvm/uvm_map.c:3767 [inline] uvm_share(ffff800000abe800,0,7,fffffd807f008b80,20002000,200000) at uvm_share+0x4b4 sys/uvm/uvm_map.c:3668 vm_impl_init_vmx(ffff800020abfc10,ffff800020acf178) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270 vm_create() at vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline] vm_create() at vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174 VOP_IOCTL(fffffd806e26c1a0,c5005601,ffff800000b52800,1,fffffd807f7c6960,ffff800020acf178) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd80620ecab0,c5005601,ffff800000b52800,ffff800020acf178) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff800020acf178,ffff80002336d098,ffff80002336d0e0) at sys_ioctl+0x5b9 syscall(ffff80002336d160) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff80002336d160) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9fa8c9b7730, count: 4 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic uvmspace_fork: no space in map for entry in empty map ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:207 uvm_mapent_clone(ffff800000abe800,1000,1000,0,7,7) at uvm_mapent_clone+0x1de sys/uvm/uvm_map.c:3708 uvm_share(ffff800000abe800,0,7,fffffd807f008b80,20002000,200000) at uvm_share+0x4b4 uvm_mapent_share sys/uvm/uvm_map.c:3767 [inline] uvm_share(ffff800000abe800,0,7,fffffd807f008b80,20002000,200000) at uvm_share+0x4b4 sys/uvm/uvm_map.c:3668 vm_impl_init_vmx(ffff800020abfc10,ffff800020acf178) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270 vm_create() at vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline] vm_create() at vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174 VOP_IOCTL(fffffd806e26c1a0,c5005601,ffff800000b52800,1,fffffd807f7c6960,ffff800020acf178) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd80620ecab0,c5005601,ffff800000b52800,ffff800020acf178) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff800020acf178,ffff80002336d098,ffff80002336d0e0) at sys_ioctl+0x5b9 syscall(ffff80002336d160) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff80002336d160) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9fa8c9b7730, count: -11 ddb{1}> show registers rdi 0xffffffff8211e9c7 db_enter+0x17 rsi 0x2417 __ALIGN_SIZE+0x1417 rbp 0xffff80002336cac0 rbx 0xffff80002336cb70 rdx 0x2418 __ALIGN_SIZE+0x1418 rcx 0xffff800023164000 rax 0xffff800023164000 r8 0xffffffff81aac14f kprintf+0x16f r9 0x1 r10 0x25 r11 0xc61008d1dd18a144 r12 0x3000000008 r13 0xffff80002336cad0 r14 0x100 r15 0x1 rip 0xffffffff8211e9c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002336cab0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=15150 stat=onproc flags process=0 proc=4000000 pri=77, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff800020ace030,0xffff800020acfb68 process=0xffff800020a8b510 user=0xffff800023368000, vmspace=0xfffffd807f008b80 estcpu=36, cpticks=3, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 46288 227530 53399 0 7 0 syz-executor.1 73839 170658 44265 0 2 0 syz-executor.0 *73839 15150 44265 0 7 0x4000000 syz-executor.0 53399 69513 48413 0 2 0x2 syz-executor.1 1935 381223 0 0 3 0x14200 acct acct 44265 495396 48413 0 3 0x82 nanosleep syz-executor.0 63828 114318 1 0 3 0x100083 ttyopn getty 72981 139608 0 0 3 0x14200 bored sosplice 48413 307056 94972 0 3 0x82 thrsleep syz-fuzzer 48413 336075 94972 0 3 0x4000082 nanosleep syz-fuzzer 48413 39342 94972 0 3 0x4000082 thrsleep syz-fuzzer 48413 154137 94972 0 3 0x4000082 nanosleep syz-fuzzer 48413 439479 94972 0 3 0x4000082 thrsleep syz-fuzzer 48413 340819 94972 0 3 0x4000082 kqread syz-fuzzer 48413 5743 94972 0 3 0x4000082 thrsleep syz-fuzzer 48413 122092 94972 0 3 0x4000082 thrsleep syz-fuzzer 48413 176491 94972 0 3 0x4000082 thrsleep syz-fuzzer 48413 335836 94972 0 3 0x4000082 thrsleep syz-fuzzer 94972 106364 38153 0 3 0x10008a pause ksh 38153 80740 46397 0 3 0x92 select sshd 46397 340607 1 0 3 0x80 select sshd 90848 233502 47858 74 3 0x100092 bpf pflogd 47858 224902 1 0 3 0x80 netio pflogd 66120 434505 17804 73 3 0x100090 kqread syslogd 17804 154794 1 0 3 0x100082 netio syslogd 99252 359114 1 77 3 0x100090 poll dhclient 59188 184551 1 0 3 0x80 poll dhclient 33690 296762 0 0 2 0x14200 zerothread 23067 331529 0 0 3 0x14200 aiodoned aiodoned 90106 261423 0 0 3 0x14200 syncer update 57728 191982 0 0 3 0x14200 cleaner cleaner 94625 298980 0 0 3 0x14200 reaper reaper 9211 19906 0 0 3 0x14200 pgdaemon pagedaemon 61077 363404 0 0 3 0x14200 bored crynlk 14917 61811 0 0 3 0x14200 bored crypto 12501 245822 0 0 3 0x40014200 acpi0 acpi0 15779 280429 0 0 3 0x40014200 idle1 41185 231815 0 0 3 0x14200 bored softnet 83096 60028 0 0 3 0x14200 bored systqmp 40123 353868 0 0 3 0x14200 bored systq 24015 306102 0 0 3 0x40014200 bored softclock 17025 499566 0 0 3 0x40014200 idle0 26932 507358 0 0 3 0x14200 bored smr 1 255284 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 73839 (syz-executor.0) thread 0xffff800020acf178 (15150) shared rwlock vmmaplk r = 0 (0xfffffd807f008b98) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 uvm_share+0xcf vm_map_lock_read_ln sys/uvm/uvm_map.c:5365 [inline] #1 uvm_share+0xcf sys/uvm/uvm_map.c:3627 #2 vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270 #3 vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline] #3 vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174 #4 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 #5 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 #6 sys_ioctl+0x5b9 #7 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #7 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #8 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xffff800000abe818) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 vm_map_lock_ln+0x10d sys/uvm/uvm_map.c:5343 #3 uvm_share+0xa7 vm_map_lock_read_ln sys/uvm/uvm_map.c:5364 [inline] #3 uvm_share+0xa7 sys/uvm/uvm_map.c:3627 #4 vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270 #5 vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline] #5 vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174 #6 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 #7 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 #8 sys_ioctl+0x5b9 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #10 Xsyscall+0x128 exclusive rwlock vmlistlock r = 0 (0xffff800000671478) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 vm_create+0x130 vm_impl_init sys/arch/amd64/amd64/vmm.c:1383 [inline] #1 vm_create+0x130 sys/arch/amd64/amd64/vmm.c:1174 #2 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 #3 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 #4 sys_ioctl+0x5b9 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8265dc90) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9601 6493K 8054K 78643K 22019 0 0 pcb 13 8K 9K 78643K 945 0 0 rtable 105 13K 14K 78643K 2533 0 0 ifaddr 257 31K 33K 78643K 1063 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 1 2K 4K 78643K 1758 0 0 iov 0 0K 32K 78643K 912 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1231 77K 78K 78643K 6026 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 75 0 0 VM map 30 15K 15K 78643K 40 0 0 sem 12 0K 1K 78643K 846 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1809 196K 290K 78643K 12766 0 0 file desc 6 17K 25K 78643K 5155 0 0 sigio 0 0K 0K 78643K 52 0 0 proc 62 63K 95K 78643K 1818 0 0 subproc 32 2K 2K 78643K 442 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 1K 78643K 401 0 0 in_multi 89 4K 5K 78643K 503 0 0 ether_multi 1 0K 0K 78643K 47 0 0 mrt 1 0K 0K 78643K 26 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 90 397K 397K 78643K 90 0 0 exec 0 0K 1K 78643K 1349 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 176 284K 284K 78643K 18211 0 0 UVM aobj 130 4K 4K 78643K 135 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 2K 78643K 1016 0 0 NDP 22 0K 1K 78643K 213 0 0 temp 177 3556K 4196K 78643K 118639 0 0 kqueue 0 0K 0K 78643K 38 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 114 0 110 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 360 0 358 1 0 1 1 0 8 0 rtentry 112 429 0 394 2 0 2 2 0 8 0 unpcb 120 3244 0 3232 2 1 1 2 0 8 0 syncache 264 28 0 28 12 11 1 1 0 8 1 tcpqe 32 158 0 158 6 5 1 1 0 8 1 tcpcb 544 1781 0 1776 10 8 2 2 0 8 1 inpcb 280 6407 0 6398 16 14 2 4 0 8 1 rttmr 72 10 0 9 5 4 1 1 0 8 0 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 48 52 0 50 1 0 1 1 0 8 0 pkpcb 40 24 0 24 6 6 0 1 0 8 0 ppxss 1128 95 0 95 12 11 1 1 0 8 1 pffrag 232 103 0 102 10 9 1 1 0 482 0 pffrnode 88 103 0 102 10 9 1 1 0 8 0 pffrent 40 3304 0 3303 10 9 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 360 0 290 1 0 1 1 0 8 0 pfstkey 112 360 0 290 3 0 3 3 0 8 0 pfstate 328 360 0 289 9 2 7 7 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 3 0 2 3 2 1 3 0 8 0 art_heap4 256 1662 0 1466 31 15 16 16 0 8 0 art_table 32 1665 0 1468 3 0 3 3 0 8 1 art_node 16 428 0 396 1 0 1 1 0 8 0 sysvmsgpl 40 60 0 53 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 844 0 834 1 0 1 1 0 8 0 shmpl 112 133 0 5 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 12096 0 10589 50 1 49 49 0 8 0 ffsino 272 12096 0 10589 101 0 101 101 0 8 0 nchpl 144 20869 0 20413 62 43 19 61 0 8 0 uvmvnodes 72 6782 0 0 124 0 124 124 0 8 0 vnodes 208 6782 0 0 357 0 357 357 0 8 0 namei 1024 73394 0 73394 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 27 0 0 4 0 4 4 0 8 0 vmpool 552 38 0 10 2 0 2 2 0 8 0 scsiplug 64 2 0 2 1 1 0 1 0 8 0 scxspl 192 73866 0 73866 34 31 3 7 0 8 3 plimitpl 152 333 0 325 1 0 1 1 0 8 0 sigapl 432 5285 0 5269 4 2 2 3 0 8 0 futexpl 56 115356 0 115356 1 0 1 1 0 8 1 knotepl 112 916 0 897 3 2 1 2 0 8 0 kqueuepl 104 1164 0 1161 3 2 1 2 0 8 0 pipepl 160 3310 0 3291 15 13 2 2 0 8 1 fdescpl 488 5286 0 5269 3 0 3 3 0 8 0 filepl 152 47944 0 47839 26 21 5 8 0 8 0 lockfpl 104 10896 0 10894 1 0 1 1 0 8 0 lockfspl 48 2849 0 2847 1 0 1 1 0 8 0 sessionpl 112 46 0 35 1 0 1 1 0 8 0 pgrppl 48 101 0 90 1 0 1 1 0 8 0 ucredpl 96 4142 0 4133 1 0 1 1 0 8 0 zombiepl 144 5275 0 5275 1 0 1 1 0 8 1 processpl 896 5309 0 5275 5 1 4 5 0 8 0 procpl 632 16141 0 16097 7 2 5 5 0 8 0 srpgc 64 43 0 43 12 11 1 1 0 8 1 sosppl 128 109 0 109 11 10 1 1 0 8 1 sockpl 384 10122 0 10098 29 25 4 7 0 8 1 mcl64k 65536 20 0 0 3 0 3 3 0 8 0 mcl16k 16384 25 0 0 4 1 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 18 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 16 0 0 2 0 2 2 0 8 0 mcl2k 2048 179 0 0 19 3 16 19 0 8 0 mtagpl 80 107 0 0 2 1 1 2 0 8 0 mbufpl 256 920 0 0 42 0 42 42 0 8 0 bufpl 256 27140 0 20082 442 0 442 442 0 8 0 anonpl 16 573973 0 550815 199 92 107 107 0 124 13 amapchunkpl 152 35908 0 35746 66 57 9 14 0 158 1 amappl16 192 25518 0 24200 169 96 73 77 0 8 7 amappl15 184 1825 0 1822 1 0 1 1 0 8 0 amappl14 176 1050 0 1044 1 0 1 1 0 8 0 amappl13 168 868 0 868 6 6 0 1 0 8 0 amappl12 160 253 0 251 2 1 1 1 0 8 0 amappl11 152 336 0 321 1 0 1 1 0 8 0 amappl10 144 386 0 381 1 0 1 1 0 8 0 amappl9 136 1828 0 1825 1 0 1 1 0 8 0 amappl8 128 1396 0 1353 2 0 2 2 0 8 0 amappl7 120 508 0 499 1 0 1 1 0 8 0 amappl6 112 309 0 295 1 0 1 1 0 8 0 amappl5 104 598 0 583 1 0 1 1 0 8 0 amappl4 96 5068 0 5037 1 0 1 1 0 8 0 amappl3 88 2020 0 2008 1 0 1 1 0 8 0 amappl2 80 41652 0 41575 3 1 2 3 0 8 0 amappl1 72 125619 0 125183 26 16 10 20 0 8 0 amappl 80 16846 0 16782 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 64 134 0 5 3 0 3 3 0 8 0 uaddrrnd 24 5324 0 5269 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5324 0 5269 1 0 1 1 0 8 0 vmmpekpl 168 44508 0 44467 4 2 2 3 0 8 0 vmmpepl 168 666803 0 664173 324 174 150 159 0 357 32 vmsppl 368 5285 0 5269 2 0 2 2 0 8 0 pdppl 4096 10655 0 10585 14 5 9 9 0 8 0 pvpl 32 1528880 0 1503214 415 177 238 242 0 265 31 pmappl 232 5323 0 5279 4 1 3 3 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 685 0 37 19 0 19 19 0 8 0