a] {6?8QB``7.b\L]:*.[ԾeJ*h]P|0͞6wm|ŽFFDctA%u a] {6?8QB``7.b\L]:*.[ԾeJ*h]P|0͞6wm|ŽFFDctA%u panic: uvm_fault: fault on non-pageable map (0xffffffff82550fa0, 0xffff800000a90000) Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *168116 96523 0 0 0x4000000 0 syz-executor.1 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_fault(ffffffff825510a0,ffff800000a90000,1,4) at uvm_fault+0x2148 uvmfault_amapcopy sys/uvm/uvm_fault.c:463 [inline] uvm_fault(ffffffff825510a0,ffff800000a90000,1,4) at uvm_fault+0x2148 sys/uvm/uvm_fault.c:559 pageflttrap() at pageflttrap+0x239 sys/arch/amd64/amd64/trap.c:199 kerntrap(ffff80001777d0b0) at kerntrap+0xdb sys/arch/amd64/amd64/trap.c:287 alltraps_kern_meltdown(6,ffff800017b45000,fffffd802edcc698,11,ffff80000005bfc0,ffff80001777d318) at alltraps_kern_meltdown+0x7b ffff800000a90800(b,ffff80001777d278,83,ffff80001777d318,0,b) at 0xffff800000a90800 rt_match(fffffd803c0495f8,0,1,0) at rt_match+0xbe rt_clone sys/net/route.c:266 [inline] rt_match(fffffd803c0495f8,0,1,0) at rt_match+0xbe sys/net/route.c:242 in_pcbselsrc(ffff80001777d3f0,fffffd8036f2b620,fffffd803c049578) at in_pcbselsrc+0x219 sys/netinet/in_pcb.c:934 in_pcbconnect(fffffd803c049578,fffffd8036f2b600) at in_pcbconnect+0x107 sys/netinet/in_pcb.c:492 udp_usrreq(fffffd802caa3c10,4,0,fffffd8036f2b600,0,ffff8000ffff2508) at udp_usrreq+0x560 sys_connect(ffff8000ffff2508,ffff80001777d578,ffff80001777d5c0) at sys_connect+0x3df sys/kern/uipc_syscalls.c:388 syscall(ffff80001777d640) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,fffffffffffffed2,0,3,d567358f010) at Xsyscall+0x128 end of kernel end trace frame: 0xd58c14ed8e0, count: 1 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic uvm_fault: fault on non-pageable map (0xffffffff82550fa0, 0xffff800000a90000) ddb> 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_fault(ffffffff825510a0,ffff800000a90000,1,4) at uvm_fault+0x2148 uvmfault_amapcopy sys/uvm/uvm_fault.c:463 [inline] uvm_fault(ffffffff825510a0,ffff800000a90000,1,4) at uvm_fault+0x2148 sys/uvm/uvm_fault.c:559 pageflttrap() at pageflttrap+0x239 sys/arch/amd64/amd64/trap.c:199 kerntrap(ffff80001777d0b0) at kerntrap+0xdb sys/arch/amd64/amd64/trap.c:287 alltraps_kern_meltdown(6,ffff800017b45000,fffffd802edcc698,11,ffff80000005bfc0,ffff80001777d318) at alltraps_kern_meltdown+0x7b ffff800000a90800(b,ffff80001777d278,83,ffff80001777d318,0,b) at 0xffff800000a90800 rt_match(fffffd803c0495f8,0,1,0) at rt_match+0xbe rt_clone sys/net/route.c:266 [inline] rt_match(fffffd803c0495f8,0,1,0) at rt_match+0xbe sys/net/route.c:242 in_pcbselsrc(ffff80001777d3f0,fffffd8036f2b620,fffffd803c049578) at in_pcbselsrc+0x219 sys/netinet/in_pcb.c:934 in_pcbconnect(fffffd803c049578,fffffd8036f2b600) at in_pcbconnect+0x107 sys/netinet/in_pcb.c:492 udp_usrreq(fffffd802caa3c10,4,0,fffffd8036f2b600,0,ffff8000ffff2508) at udp_usrreq+0x560 sys_connect(ffff8000ffff2508,ffff80001777d578,ffff80001777d5c0) at sys_connect+0x3df sys/kern/uipc_syscalls.c:388 syscall(ffff80001777d640) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,fffffffffffffed2,0,3,d567358f010) at Xsyscall+0x128 end of kernel end trace frame: 0xd58c14ed8e0, count: -14 ddb> show registers rdi 0xffffffff81ff91f7 db_enter+0x17 rsi 0x2f9c __ALIGN_SIZE+0x1f9c rbp 0xffff80001777cce0 rbx 0xffff80001777cd90 rdx 0x2f9d __ALIGN_SIZE+0x1f9d rcx 0xffff800017b45000 rax 0xffff800017b45000 r8 0xffff80001777cca0 r9 0x1 r10 0xffff800000aa9940 r11 0x96b317386df08257 r12 0x3000000008 r13 0xffff80001777ccf0 r14 0x100 r15 0x1 rip 0xffffffff81ff91f8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001777ccd0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.1) pid=168116 stat=onproc flags process=0 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff3160,0xffffffff8255a180 process=0xffff8000148950f8 user=0xffff800017778000, vmspace=0xfffffd803f013000 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 96523 401272 23606 0 2 0 syz-executor.1 *96523 168116 23606 0 7 0x4000000 syz-executor.1 64243 324292 52542 0 3 0x82 nanosleep syz-executor.0 32381 196894 1 0 3 0x100083 ttyin getty 23606 372192 52542 0 3 0x82 nanosleep syz-executor.1 37784 199418 0 0 3 0x14200 acct acct 83909 312058 0 0 3 0x14200 bored sosplice 52542 410293 17233 0 3 0x82 thrsleep syz-fuzzer 52542 333545 17233 0 3 0x4000082 thrsleep syz-fuzzer 52542 72481 17233 0 3 0x4000082 thrsleep syz-fuzzer 52542 235616 17233 0 3 0x4000082 thrsleep syz-fuzzer 52542 335440 17233 0 3 0x4000082 thrsleep syz-fuzzer 52542 352665 17233 0 3 0x4000082 kqread syz-fuzzer 52542 244094 17233 0 3 0x4000082 thrsleep syz-fuzzer 17233 177641 61904 0 3 0x10008a pause ksh 61904 348983 90916 0 3 0x92 select sshd 90916 465496 1 0 3 0x80 select sshd 16798 150593 61434 73 3 0x100090 kqread syslogd 61434 385521 1 0 3 0x100082 netio syslogd 40583 419019 1 77 3 0x100090 poll dhclient 51283 105779 1 0 3 0x80 poll dhclient 47278 518906 0 0 2 0x14200 zerothread 84292 506289 0 0 3 0x14200 aiodoned aiodoned 79280 404504 0 0 3 0x14200 syncer update 78035 138944 0 0 3 0x14200 cleaner cleaner 65220 355501 0 0 3 0x14200 reaper reaper 19561 160562 0 0 3 0x14200 pgdaemon pagedaemon 7774 121324 0 0 3 0x14200 bored crynlk 7665 50490 0 0 3 0x14200 bored crypto 77889 230472 0 0 3 0x40014200 acpi0 acpi0 4552 404739 0 0 3 0x14200 bored softnet 48587 183035 0 0 3 0x14200 bored systqmp 8465 427209 0 0 3 0x14200 bored systq 95004 484426 0 0 3 0x40014200 bored softclock 32771 52644 0 0 3 0x40014200 idle0 87558 488365 0 0 3 0x14200 bored smr 1 453937 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 9534 6366K 7129K 78643K 17975 0 0 pcb 13 8K 8K 78643K 285 0 0 rtable 124 8K 8K 78643K 758 0 0 ifaddr 70 16K 16K 78643K 263 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 132 0 0 iov 0 0K 20K 78643K 208 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1218 77K 77K 78643K 3633 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 50 0 0 VM map 2 0K 0K 78643K 4 0 0 sem 12 0K 0K 78643K 339 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 2416 0 0 sigio 0 0K 0K 78643K 34 0 0 proc 49 38K 63K 78643K 689 0 0 subproc 32 2K 2K 78643K 119 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 250 0 0 in_multi 35 2K 2K 78643K 153 0 0 ether_multi 1 0K 0K 78643K 6 0 0 mrt 0 0K 0K 78643K 12 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 424 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 102 21K 30K 78643K 6530 0 0 UVM aobj 103 3K 3K 78643K 124 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 264 0 0 NDP 15 0K 0K 78643K 77 0 0 temp 191 3536K 3606K 78643K 69975 0 0 kqueue 0 0K 0K 78643K 8 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 14 0 7 1 0 1 1 0 8 0 rtpcb 80 164 0 162 1 0 1 1 0 8 0 rtentry 112 101 0 53 2 0 2 2 0 8 0 unpcb 120 856 0 845 1 0 1 1 0 8 0 syncache 264 5 0 5 2 2 0 1 0 8 0 tcpqe 32 5097 0 5097 1 1 0 1 0 8 0 tcpcb 544 505 0 501 1 0 1 1 0 8 0 inpcb 280 1501 0 1493 1 0 1 1 0 8 0 rttmr 72 3 0 3 3 3 0 1 0 8 0 nd6 48 13 0 9 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 ppxss 1128 25 0 25 9 8 1 1 0 8 1 art_heap8 4096 4 0 2 2 0 2 2 0 8 0 art_heap4 256 529 0 280 20 4 16 17 0 8 0 art_table 32 533 0 282 4 1 3 3 0 8 0 art_node 16 97 0 54 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 16 1 0 1 1 0 8 0 semapl 112 335 0 325 1 0 1 1 0 8 0 shmpl 112 122 0 21 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5704 0 4290 46 0 46 46 0 8 0 ffsino 240 5704 0 4290 84 0 84 84 0 8 0 nchpl 144 9742 0 8130 60 0 60 60 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 208 5926 0 0 312 0 312 312 0 8 0 namei 1024 32287 0 32287 3 2 1 1 0 8 1 vmpool 520 2 0 2 1 1 0 1 0 8 0 scsiplug 64 8 0 8 4 3 1 1 0 8 1 scxspl 192 30630 0 30630 18 16 2 7 0 8 2 plimitpl 152 192 0 184 1 0 1 1 0 8 0 sigapl 432 2573 0 2560 2 0 2 2 0 8 0 futexpl 56 51837 0 51837 1 0 1 1 0 8 1 knotepl 112 482 0 463 2 1 1 2 0 8 0 kqueuepl 104 519 0 517 1 0 1 1 0 8 0 pipepl 112 1214 0 1195 5 3 2 2 0 8 1 fdescpl 424 2574 0 2560 2 0 2 2 0 8 0 filepl 120 19270 0 19171 10 5 5 5 0 8 2 lockfpl 104 7339 0 7338 2 1 1 2 0 8 0 lockfspl 48 1177 0 1176 1 0 1 1 0 8 0 sessionpl 112 23 0 13 1 0 1 1 0 8 0 pgrppl 48 34 0 24 1 0 1 1 0 8 0 ucredpl 96 2602 0 2593 1 0 1 1 0 8 0 zombiepl 144 2560 0 2559 3 2 1 1 0 8 0 processpl 864 2590 0 2559 4 0 4 4 0 8 0 procpl 632 5597 0 5559 4 0 4 4 0 8 0 sosppl 128 17 0 17 6 5 1 1 0 8 1 sockpl 384 2558 0 2537 6 3 3 4 0 8 0 mcl64k 65536 44 0 44 11 10 1 1 0 8 1 mcl16k 16384 13 0 13 8 7 1 1 0 8 1 mcl12k 12288 44 0 44 5 4 1 1 0 8 1 mcl9k 9216 25 0 25 8 8 0 1 0 8 0 mcl8k 8192 58 0 58 4 3 1 1 0 8 1 mcl4k 4096 152 0 152 4 3 1 1 0 8 1 mcl2k2 2112 17 0 17 7 6 1 1 0 8 1 mcl2k 2048 57018 0 56975 19 12 7 13 0 8 1 mtagpl 80 151 0 94 3 1 2 2 0 8 0 mbufpl 256 104631 0 104418 22 7 15 16 0 8 0 bufpl 256 14968 0 9372 350 0 350 350 0 8 0 anonpl 16 217885 0 206059 125 63 62 76 0 62 1 amapchunkpl 152 11018 0 10887 29 22 7 11 0 158 1 amappl16 192 12297 0 11485 76 33 43 53 0 8 2 amappl15 184 193 0 192 2 1 1 1 0 8 0 amappl14 176 1706 0 1699 2 1 1 1 0 8 0 amappl13 168 1 0 1 1 1 0 1 0 8 0 amappl12 160 7 0 6 1 0 1 1 0 8 0 amappl11 152 83 0 72 1 0 1 1 0 8 0 amappl10 144 8 0 7 2 1 1 1 0 8 0 amappl9 136 638 0 632 1 0 1 1 0 8 0 amappl8 128 213 0 186 1 0 1 1 0 8 0 amappl7 120 65 0 59 1 0 1 1 0 8 0 amappl6 112 113 0 103 1 0 1 1 0 8 0 amappl5 104 190 0 179 1 0 1 1 0 8 0 amappl4 96 1958 0 1932 1 0 1 1 0 8 0 amappl3 88 1898 0 1891 1 0 1 1 0 8 0 amappl2 80 19648 0 19583 4 2 2 3 0 8 0 amappl1 72 54643 0 54236 26 16 10 20 0 8 0 amappl 80 5896 0 5854 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 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 64 123 0 21 2 0 2 2 0 8 0 uaddrrnd 24 2576 0 2560 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2576 0 2560 1 0 1 1 0 8 0 vmmpekpl 168 17794 0 17765 2 0 2 2 0 8 0 vmmpepl 168 300692 0 298833 218 106 112 112 0 357 26 vmsppl 272 2573 0 2560 2 1 1 2 0 8 0 pdppl 4096 5158 0 5124 6 1 5 6 0 8 0 pvpl 32 617807 0 602934 273 110 163 190 0 265 17 pmappl 200 2575 0 2562 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 541 0 52 15 1 14 14 0 8 0