uvm_fault(0xfffffd806c0b5178, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND * 70757 11446 0 0x1000 0x4080000 0 syz-executor ktrops(ffff80002a8887c8,ffffffffffffffff,0,80000112,fffffd8064732cb0,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8887c8,ffffffffffffffff,0,80000112,fffffd8064732cb0,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8064732cb0,4,112,0,ffff80002a8887c8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8064732cb0,4,112,0,ffff80002a8887c8) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8887c8,ffff80002a8f5360,ffff80002a8f52b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8f5360) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf31c8a21870, count: 10 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 *cpu0: uvm_fault(0xfffffd806c0b5178, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a8887c8,ffffffffffffffff,0,80000112,fffffd8064732cb0,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8887c8,ffffffffffffffff,0,80000112,fffffd8064732cb0,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8064732cb0,4,112,0,ffff80002a8887c8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8064732cb0,4,112,0,ffff80002a8887c8) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8887c8,ffff80002a8f5360,ffff80002a8f52b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8f5360) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf31c8a21870, count: -5 ddb> show registers rdi 0xffff80002a8887c8 rsi 0xffffffffffffffff rbp 0xffff80002a8f5080 rbx 0xfffffd807f7d78f0 rdx 0 rcx 0x80000112 __kernel_virt_to_phys+0x112 rax 0xffff80002a8887c8 r8 0xfffffd8064732cb0 r9 0xfffffd807f7d78f0 r10 0x81967a0a0071c587 r11 0x9bb6abfee7853fe1 r12 0xffff80002a8887c8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000112 __kernel_virt_to_phys+0x112 rip 0xffffffff8237b328 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a8f5000 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=70757 pid=11446 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=17, usrpri=74, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a8e51d0 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff800038947bf8,0xffffffff838579d0 process=0xffff8000ffff73d8 user=0xffff80002a8f0000, vmspace=0xfffffd806c0b5178 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 62271 384795 83713 0 2 0 syz-executor 62271 104703 83713 0 2 0x4000000 syz-executor 11446 313410 98532 0 3 0x3000 suspend syz-executor *11446 70757 98532 0 7 0x4081000 syz-executor 54364 307593 2993 0 2 0 syz-executor 54364 425822 2993 0 3 0x4000080 fsleep syz-executor 72510 293675 0 0 3 0x14280 nfsidl nfsio 67264 321017 0 0 3 0x14280 nfsidl nfsio 6627 74273 0 0 3 0x14280 nfsidl nfsio 26404 249656 0 0 3 0x14280 nfsidl nfsio 24897 125486 0 0 3 0x14280 nfsidl nfsio 19597 100624 0 0 3 0x14280 nfsidl nfsio 87966 193011 0 0 3 0x14280 nfsidl nfsio 51979 55602 0 0 3 0x14280 nfsidl nfsio 15736 386954 0 0 3 0x14280 nfsidl nfsio 94706 683 0 0 3 0x14280 nfsidl nfsio 14555 275849 0 0 3 0x14280 nfsidl nfsio 25583 426969 0 0 3 0x14280 nfsidl nfsio 58442 467066 0 0 3 0x14280 nfsidl nfsio 23999 119292 0 0 3 0x14280 nfsidl nfsio 8060 177777 0 0 3 0x14280 nfsidl nfsio 8914 299558 0 0 3 0x14280 nfsidl nfsio 63298 252245 0 0 3 0x14280 nfsidl nfsio 1334 470875 0 0 3 0x14280 nfsidl nfsio 48230 497842 0 0 3 0x14280 nfsidl nfsio 57161 192218 0 0 3 0x14280 nfsidl nfsio 83713 164096 3410 0 2 0x482 syz-executor 97620 132733 3410 0 2 0x2 syz-executor 54334 409281 1 0 3 0x100083 ttyin getty 25327 218121 0 0 3 0x14200 bored sosplice 54957 74506 3410 0 2 0x2 syz-executor 28576 344534 3410 0 2 0x2 syz-executor 98532 2999 3410 0 2 0x482 syz-executor 2993 12771 3410 0 3 0x82 nanoslp syz-executor 89123 182505 3410 0 2 0x2 syz-executor 51455 287976 3410 0 2 0x2 syz-executor 3410 181896 17996 0 3 0x82 kqread syz-executor 17996 16834 43336 0 3 0x10008a sigsusp ksh 43336 500811 18559 0 3 0x98 kqread sshd-session 18559 455398 78369 0 3 0x92 kqread sshd-session 78369 424851 1 0 3 0x88 kqread sshd 21410 388509 60855 73 3 0x1100090 kqread syslogd 60855 61713 1 0 3 0x100082 sbwait syslogd 22745 252785 1 0 3 0x100080 kqread resolvd 12422 61661 93014 77 3 0x100092 kqread dhcpleased 62879 201393 93014 77 3 0x100092 kqread dhcpleased 93014 383301 1 0 3 0x80 kqread dhcpleased 42020 161569 0 0 3 0x14200 bored smr 25328 270681 0 0 2 0x14200 zerothread 64074 239037 0 0 3 0x14200 aiodoned aiodoned 72543 225918 0 0 3 0x14200 syncer update 13148 438720 0 0 3 0x14200 cleaner cleaner 50451 464551 0 0 3 0x14200 reaper reaper 9396 227508 0 0 3 0x14200 pgdaemon pagedaemon 26544 391336 0 0 3 0x14200 bored viomb 77033 368245 0 0 3 0x40014200 acpi0 acpi0 18379 287114 0 0 3 0x14200 bored softnet3 86831 68224 0 0 3 0x14200 bored softnet2 76873 100853 0 0 3 0x14200 bored softnet1 32198 6622 0 0 3 0x14200 bored softnet0 74933 245956 0 0 3 0x14200 bored systqmp 708 27744 0 0 3 0x14200 bored systq 56217 272108 0 0 2 0x40014200 softclock 8898 493069 0 0 3 0x40014200 idle0 1 434318 0 0 3 0x80082 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 devbuf 10250 11136K 11695K 166960K 15151 0 pcb 17 20K 21K 166960K 423 0 rtable 191 9K 10K 166960K 645 0 pf 31 13K 269K 166960K 152 0 ifaddr 37 6K 8K 166960K 100 0 ifgroup 46 2K 2K 166960K 143 0 sysctl 4 1K 1K 166960K 4 0 counters 29 17K 17K 166960K 68 0 ioctlops 0 0K 4K 166960K 348 0 iov 0 0K 32K 166960K 261 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1519 95K 96K 166960K 3337 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 36 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 162 0 dirhash 12 2K 2K 166960K 42 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 13 45K 97K 166960K 2059 0 sigio 0 0K 0K 166960K 32 0 proc 60 59K 124K 166960K 726 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 257 0 in_multi 78 5K 7K 166960K 212 0 ether_multi 1 0K 0K 166960K 23 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 921 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 187 72K 89K 166960K 19924 0 UVM aobj 50 6K 6K 166960K 55 0 pinsyscall 34 68K 96K 166960K 3152 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 145 0 NDP 10 0K 2K 166960K 66 0 temp 75 8636K 8764K 166960K 86866 0 kqueue 13 20K 34K 166960K 388 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 288 0 285 4 1 3 3 0 8 2 rtentry 112 191 0 111 4 0 4 4 0 8 0 unpcb 144 2126 0 2110 11 10 1 6 0 8 0 syncache 336 7 0 7 2 2 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 5 0 5 2 2 0 1 0 8 0 tcpcb 808 672 0 665 15 7 8 8 0 8 5 arp 88 29 0 16 1 0 1 1 0 8 0 ipq 40 5 0 4 1 0 1 1 0 8 0 ipqe 40 55 0 53 1 0 1 1 0 8 0 inpcb 344 2702 0 2692 27 19 8 11 0 8 4 nd6 104 42 0 20 1 0 1 1 0 8 0 pkpcb 40 14 0 14 4 3 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1072 26 0 26 3 2 1 1 0 8 1 pppxif 1376 2 0 2 2 1 1 1 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 6 0 2 1 0 1 1 0 8 0 pfstate 344 3 0 1 1 0 1 1 0 8 0 pfrule 1344 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 839 0 493 32 4 28 29 0 8 3 art_table 32 841 0 493 4 0 4 4 0 8 0 art_node 16 184 0 116 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 11 2 1 1 1 0 8 0 semapl 112 159 0 149 1 0 1 1 0 8 0 shmpl 112 52 0 5 2 0 2 2 0 8 0 dirhash 1024 37 0 20 3 0 3 3 0 8 0 dino2pl 256 5099 0 3605 95 0 95 95 0 8 0 ffsino 248 5100 0 3605 95 0 95 95 0 8 0 nchpl 144 8161 0 7628 63 41 22 63 0 8 0 rtmask 32 4 0 4 3 2 1 1 0 8 1 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 29726 0 29722 4 3 1 2 0 8 0 kstatmem 264 84 0 64 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 9 0 9 3 2 1 1 0 8 1 scxspl 216 25888 0 25888 16 14 2 8 1 8 2 plimitpl 152 447 0 431 1 0 1 1 0 8 0 sigapl 424 2365 0 2303 9 1 8 8 0 8 0 futexpl 64 31583 0 31582 1 0 1 1 0 8 0 knotepl 120 672302 0 672255 78 68 10 17 0 8 8 kqueuepl 184 900 0 891 8 6 2 4 0 8 1 pipepl 296 502 0 475 13 5 8 8 0 8 5 fdescpl 440 2321 0 2296 5 1 4 5 0 8 0 filepl 120 17412 0 17204 23 12 11 15 0 8 2 lockfpl 104 1120 0 1118 5 1 4 4 0 8 3 lockfspl 48 302 0 300 1 0 1 1 0 8 0 sessionpl 144 25 0 17 1 0 1 1 0 8 0 pgrppl 48 54 0 38 1 0 1 1 0 8 0 ucredpl 104 2934 0 2923 1 0 1 1 0 8 0 zombiepl 144 2304 0 2303 1 0 1 1 0 8 0 processpl 1104 2365 0 2303 5 0 5 5 0 8 0 procpl 648 5227 0 5162 7 0 7 7 0 8 0 sosppl 168 12 0 12 3 3 0 1 0 8 0 sockpl 528 5234 0 5205 30 23 7 12 0 8 2 mcl64k 65536 26 0 26 3 2 1 1 0 8 1 mcl16k 16384 2 0 2 2 2 0 1 0 8 0 mcl12k 12288 1 0 1 1 1 0 1 0 8 0 mcl9k 9216 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 34 0 34 3 2 1 1 0 8 1 mcl4k 4096 5023 0 4973 17 9 8 14 0 8 0 mcl2k 2048 2276 0 2267 10 8 2 10 0 8 0 mtagpl 96 295 0 77 6 0 6 6 0 8 0 mbufpl 256 28067 0 27717 131 108 23 79 0 8 0 bufpl 280 10126 0 3898 446 1 445 446 0 8 0 anonpl 24 323875 0 311816 126 25 101 125 0 187 1 amapchunkpl 152 67687 0 67201 61 32 29 38 0 158 4 amappl16 200 7557 0 7072 60 19 41 52 0 8 1 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 142 0 132 1 0 1 1 0 8 0 amappl13 176 37 0 36 1 0 1 1 0 8 0 amappl12 168 2976 0 2951 3 1 2 3 0 8 0 amappl11 160 68 0 58 1 0 1 1 0 8 0 amappl10 152 7 0 7 2 1 1 1 0 8 1 amappl9 144 275 0 275 1 1 0 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 128 0 118 1 0 1 1 0 8 0 amappl6 120 199 0 195 1 0 1 1 0 8 0 amappl5 112 124 0 117 1 0 1 1 0 8 0 amappl4 104 312 0 296 1 0 1 1 0 8 0 amappl3 96 13749 0 13665 4 0 4 4 0 8 0 amappl2 88 667 0 611 2 0 2 2 0 8 0 amappl1 80 13719 0 13216 13 1 12 13 0 8 0 amappl 88 19401 0 19262 5 0 5 5 0 92 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 256 0 256 2 2 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 72 54 0 5 1 0 1 1 0 8 0 uaddrrnd 24 2321 0 2296 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2321 0 2296 1 0 1 1 0 8 0 vmmpekpl 168 18124 0 18070 3 0 3 3 0 8 0 vmmpepl 168 143961 0 141979 121 11 110 120 0 357 0 vmsppl 360 2320 0 2296 4 1 3 4 0 8 0 rwobjpl 32 42722 0 35477 63 1 62 62 0 8 2 pdppl 4096 4648 0 4592 116 52 64 82 0 8 8 pvpl 32 972076 0 955459 259 73 186 226 0 265 16 pmappl 216 2320 0 2296 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 439 0 202 9 0 9 9 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a8887c8,ffffffffffffffff,0,80000112,fffffd8064732cb0,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8887c8,ffffffffffffffff,0,80000112,fffffd8064732cb0,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8064732cb0,4,112,0,ffff80002a8887c8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8064732cb0,4,112,0,ffff80002a8887c8) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8887c8,ffff80002a8f5360,ffff80002a8f52b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8f5360) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf31c8a21870, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a8887c8,ffffffffffffffff,0,80000112,fffffd8064732cb0,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8887c8,ffffffffffffffff,0,80000112,fffffd8064732cb0,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8064732cb0,4,112,0,ffff80002a8887c8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8064732cb0,4,112,0,ffff80002a8887c8) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8887c8,ffff80002a8f5360,ffff80002a8f52b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8f5360) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf31c8a21870, count: -5