uvm_fault(0xfffffd8007c1a6b8, 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 *193366 54713 0 0 0x4000000 0 syz-executor ktrops(ffff80002a4c31d0,ffffffffffffffff,0,a0c7df9b,fffffd8061a7c9a0,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4c31d0,ffffffffffffffff,0,a0c7df9b,fffffd8061a7c9a0,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8061a7c9a0,4,20c7df9b,0,ffff80002a4c31d0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061a7c9a0,4,20c7df9b,0,ffff80002a4c31d0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4c31d0,ffff800037449e70,ffff800037449dc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037449e70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8a84459000, 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(0xfffffd8007c1a6b8, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a4c31d0,ffffffffffffffff,0,a0c7df9b,fffffd8061a7c9a0,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4c31d0,ffffffffffffffff,0,a0c7df9b,fffffd8061a7c9a0,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8061a7c9a0,4,20c7df9b,0,ffff80002a4c31d0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061a7c9a0,4,20c7df9b,0,ffff80002a4c31d0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4c31d0,ffff800037449e70,ffff800037449dc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037449e70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8a84459000, count: -5 ddb> show registers rdi 0xffff80002f1d4000 rsi 0xc88 rbp 0xffff800037449b90 rbx 0xfffffd807f7d7750 rdx 0xffff80002f1d4000 rcx 0xc87 rax 0xffffffff817f94c3 ktrops+0x43 r8 0xfffffd8061a7c9a0 r9 0xfffffd807f7d7750 r10 0x5422bababc5f0bba r11 0xf9fc9dfff8b7a61a r12 0xffff80002a4c31d0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9b rip 0xffffffff817f94d8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800037449b10 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=193366 pid=54713 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a4c2528,0xffff80002a4f5708 process=0xffff80002a5d0470 user=0xffff800037444000, vmspace=0xfffffd8007c1a6b8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 16362 469917 39938 0 2 0x10 syz-executor 16362 471224 39938 0 3 0x4000090 fsleep syz-executor 98406 365803 64196 0 2 0 syz-executor 98406 90966 64196 0 2 0x4000000 syz-executor 79706 320207 88631 0 2 0x82000 syz-executor 79706 132176 88631 0 3 0x4002000 suspend syz-executor 64655 393334 40109 0 2 0x2 ifconfig 40109 50115 68765 0 3 0x10008a sigsusp sh 17164 264070 58157 0 2 0 syz-executor 17164 129787 58157 0 3 0x4000080 fsleep syz-executor 65794 255871 96860 0 2 0 syz-executor 65794 99789 96860 0 3 0x4000080 fsleep syz-executor 54713 370521 34317 0 2 0 syz-executor *54713 193366 34317 0 7 0x4000000 syz-executor 99010 129993 86425 0 2 0x2 syz-executor 68765 415796 86425 0 3 0x82 wait syz-executor 64196 448483 86425 0 3 0x82 nanoslp syz-executor 88631 99539 86425 0 3 0x82 nanoslp syz-executor 34317 388092 86425 0 3 0x82 nanoslp syz-executor 96860 381397 86425 0 3 0x82 nanoslp syz-executor 58157 459307 86425 0 3 0x82 nanoslp syz-executor 39938 184770 86425 0 3 0x82 nanoslp syz-executor 8992 203715 0 0 3 0x14280 nfsidl nfsio 52371 379867 0 0 3 0x14280 nfsidl nfsio 17785 287877 0 0 3 0x14280 nfsidl nfsio 63345 406100 0 0 3 0x14280 nfsidl nfsio 76697 283351 0 0 3 0x14280 nfsidl nfsio 44999 140161 0 0 3 0x14280 nfsidl nfsio 59839 396337 0 0 3 0x14280 nfsidl nfsio 40604 63382 0 0 3 0x14280 nfsidl nfsio 81344 241298 0 0 3 0x14280 nfsidl nfsio 46031 206817 0 0 3 0x14280 nfsidl nfsio 87053 107479 0 0 3 0x14280 nfsidl nfsio 53490 147460 0 0 3 0x14280 nfsidl nfsio 15943 112064 0 0 3 0x14280 nfsidl nfsio 44740 168126 0 0 3 0x14280 nfsidl nfsio 15670 467268 0 0 3 0x14280 nfsidl nfsio 7076 194138 0 0 3 0x14280 nfsidl nfsio 42538 291688 0 0 3 0x14280 nfsidl nfsio 46925 472308 0 0 3 0x14280 nfsidl nfsio 57863 65563 0 0 3 0x14280 nfsidl nfsio 76480 312917 0 0 3 0x14280 nfsidl nfsio 44963 119753 0 0 3 0x14200 bored sosplice 86425 63909 41340 0 3 0x82 kqread syz-executor 41340 1212 66931 0 3 0x10008a sigsusp ksh 66931 446539 25256 0 3 0x98 kqread sshd-session 25256 434162 36189 0 3 0x92 kqread sshd-session 47446 165236 1 0 3 0x100083 ttyin getty 36189 9127 1 0 3 0x88 kqread sshd 55519 338821 34521 73 2 0x1100010 syslogd 34521 34503 1 0 3 0x100082 sbwait syslogd 41824 338338 1 0 3 0x100080 kqread resolvd 20183 442407 58107 77 3 0x100092 kqread dhcpleased 93125 64890 58107 77 3 0x100092 kqread dhcpleased 58107 139036 1 0 3 0x80 kqread dhcpleased 8234 415637 0 0 3 0x14200 bored smr 52205 494189 0 0 2 0x14200 zerothread 45143 375729 0 0 3 0x14200 aiodoned aiodoned 28979 146920 0 0 3 0x14200 syncer update 87811 204212 0 0 3 0x14200 cleaner cleaner 73025 171358 0 0 3 0x14200 reaper reaper 62551 428366 0 0 3 0x14200 pgdaemon pagedaemon 82843 267277 0 0 3 0x14200 bored viomb 3421 228980 0 0 3 0x40014200 acpi0 acpi0 57738 148321 0 0 3 0x14200 bored softnet3 25397 511654 0 0 3 0x14200 bored softnet2 87531 373916 0 0 3 0x14200 bored softnet1 16889 460067 0 0 3 0x14200 bored softnet0 22038 9158 0 0 3 0x14200 bored systqmp 4813 182980 0 0 3 0x14200 bored systq 20739 199383 0 0 2 0x40014200 softclock 5617 292338 0 0 3 0x40014200 idle0 1 312719 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 10207 14183K 14440K 166960K 12266 0 pcb 18 14K 16K 166960K 254 0 rtable 205 6K 7K 166960K 1446 0 pf 31 13K 15K 166960K 169 0 ifaddr 39 7K 7K 166960K 191 0 ifgroup 50 2K 2K 166960K 201 0 sysctl 3 0K 0K 166960K 3 0 counters 30 17K 17K 166960K 71 0 ioctlops 0 0K 4K 166960K 194 0 iov 0 0K 16K 166960K 127 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1457 92K 92K 166960K 2537 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 86 0 dirhash 12 2K 3K 166960K 33 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 18 65K 97K 166960K 1340 0 sigio 0 0K 0K 166960K 56 0 proc 67 67K 116K 166960K 1466 0 subproc 104 6K 6K 166960K 534 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 118 0 in_multi 88 6K 7K 166960K 484 0 ether_multi 1 0K 0K 166960K 5 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 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 939 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 211 72K 90K 166960K 12247 0 UVM aobj 95 3K 3K 166960K 100 0 pinsyscall 39 78K 98K 166960K 3246 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 41 0 NDP 16 0K 2K 166960K 135 0 temp 54 6809K 6877K 166960K 26679 0 kqueue 14 22K 34K 166960K 159 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 120 198 0 194 2 0 2 2 0 8 1 rtentry 112 494 0 400 4 0 4 4 0 8 0 unpcb 144 1147 0 1130 10 1 9 9 0 8 8 syncache 336 12 0 12 2 1 1 1 0 8 1 tcpqe 32 8 0 8 1 0 1 1 0 8 1 tcpcb 808 459 0 452 17 8 9 11 0 8 8 arp 88 88 0 70 1 0 1 1 0 8 0 ipq 40 10 0 8 1 0 1 1 0 8 0 ipqe 40 102 0 100 1 0 1 1 0 8 0 inpcb 336 1443 0 1430 26 17 9 26 0 8 7 nd6 104 124 0 104 1 0 1 1 0 8 0 pkpcb 40 7 0 7 2 1 1 1 0 8 1 kcovpl 48 41 0 33 1 0 1 1 0 8 0 ppxss 1072 7 0 7 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 1942 0 1557 29 0 29 29 0 8 4 art_table 32 1944 0 1557 4 0 4 4 0 8 0 art_node 16 489 0 403 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 2 1 1 1 0 8 0 semapl 112 84 0 74 1 0 1 1 0 8 0 shmpl 112 97 0 5 3 0 3 3 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 3025 0 1468 98 0 98 98 0 8 0 ffsino 240 3025 0 1468 92 0 92 92 0 8 0 nchpl 144 4266 0 2549 64 0 64 64 0 8 0 uvmvnodes 80 3962 0 0 81 0 81 81 0 8 0 vnodes 216 3962 0 0 221 0 221 221 0 8 0 namei 1024 17862 0 17860 4 2 2 2 0 8 1 kstatmem 264 104 0 82 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 27733 0 27733 10 2 8 8 1 8 8 plimitpl 152 510 0 494 1 0 1 1 0 8 0 sigapl 424 1582 0 1515 8 0 8 8 0 8 0 futexpl 64 11833 0 11830 1 0 1 1 0 8 0 knotepl 120 28303 0 28255 22 13 9 14 0 8 7 kqueuepl 184 351 0 341 5 2 3 3 0 8 2 pipepl 288 372 0 345 7 0 7 7 0 8 4 fdescpl 432 1544 0 1514 5 1 4 5 0 8 0 filepl 120 9513 0 9258 31 15 16 28 0 8 8 lockfpl 104 510 0 507 2 1 1 2 0 8 0 lockfspl 48 116 0 113 1 0 1 1 0 8 0 sessionpl 144 60 0 52 1 0 1 1 0 8 0 pgrppl 48 111 0 95 1 0 1 1 0 8 0 ucredpl 104 1509 0 1496 1 0 1 1 0 8 0 zombiepl 144 1902 0 1902 2 1 1 1 0 8 1 processpl 1096 1583 0 1515 6 0 6 6 0 8 0 procpl 648 2842 0 2768 8 0 8 8 0 8 1 sosppl 168 8 0 8 2 1 1 1 0 8 1 sockpl 504 2811 0 2777 70 57 13 59 0 8 8 mcl64k 65536 17 0 17 2 1 1 1 0 8 1 mcl16k 16384 4 0 4 2 1 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 61 0 61 2 1 1 1 0 8 1 mcl4k 4096 6 0 6 2 1 1 1 0 8 1 mcl2k2 2112 2 0 2 2 1 1 1 0 8 1 mcl2k 2048 7482 0 7388 26 11 15 25 0 8 2 mtagpl 96 16 0 15 2 1 1 1 0 8 0 mbufpl 256 17806 0 17605 39 19 20 27 0 8 7 bufpl 280 6832 0 585 447 0 447 447 0 8 0 anonpl 24 252936 0 249722 78 27 51 51 0 187 21 amapchunkpl 152 39550 0 39104 48 15 33 35 0 158 15 amappl16 200 5088 0 5075 34 26 8 15 0 8 7 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 226 0 216 1 0 1 1 0 8 0 amappl13 176 49 0 49 2 1 1 1 0 8 1 amappl12 168 2683 0 2651 3 1 2 3 0 8 0 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 134 0 134 1 1 0 1 0 8 0 amappl8 136 21 0 20 1 0 1 1 0 8 0 amappl7 128 169 0 159 1 0 1 1 0 8 0 amappl6 120 495 0 491 1 0 1 1 0 8 0 amappl5 112 258 0 248 1 0 1 1 0 8 0 amappl4 104 398 0 382 1 0 1 1 0 8 0 amappl3 96 7795 0 7692 4 0 4 4 0 8 1 amappl2 88 1155 0 1090 2 0 2 2 0 8 0 amappl1 80 13613 0 13090 13 1 12 13 0 8 0 amappl 88 11550 0 11392 6 1 5 5 0 92 0 dma4096 4096 1 0 1 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 128 253 0 253 1 1 0 1 0 8 0 dma64 64 7 0 7 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 99 0 5 2 0 2 2 0 8 0 uaddrrnd 24 1544 0 1514 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1544 0 1514 1 0 1 1 0 8 0 vmmpekpl 168 13509 0 13447 3 0 3 3 0 8 0 vmmpepl 168 101220 0 99527 100 11 89 89 0 357 13 vmsppl 344 1543 0 1514 4 1 3 4 0 8 0 rwobjpl 24 34679 0 29774 30 0 30 30 0 8 0 pdppl 4096 3094 0 3028 150 78 72 82 0 8 6 pvpl 32 737519 0 727674 357 136 221 221 0 265 135 pmappl 216 1543 0 1514 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 576 0 199 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a4c31d0,ffffffffffffffff,0,a0c7df9b,fffffd8061a7c9a0,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4c31d0,ffffffffffffffff,0,a0c7df9b,fffffd8061a7c9a0,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8061a7c9a0,4,20c7df9b,0,ffff80002a4c31d0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061a7c9a0,4,20c7df9b,0,ffff80002a4c31d0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4c31d0,ffff800037449e70,ffff800037449dc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037449e70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8a84459000, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a4c31d0,ffffffffffffffff,0,a0c7df9b,fffffd8061a7c9a0,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4c31d0,ffffffffffffffff,0,a0c7df9b,fffffd8061a7c9a0,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8061a7c9a0,4,20c7df9b,0,ffff80002a4c31d0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061a7c9a0,4,20c7df9b,0,ffff80002a4c31d0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4c31d0,ffff800037449e70,ffff800037449dc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037449e70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8a84459000, count: -5