uvm_fault(0xfffffd806c103a28, 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 * 71901 40002 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7e4d28,ffffffffffffffff,0,80000b1c,fffffd806e598468,fffffd8007bfb548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7e4d28,ffffffffffffffff,0,80000b1c,fffffd806e598468,fffffd8007bfb548) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806e598468,4,b1c,0,ffff80002a7e4d28) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806e598468,4,b1c,0,ffff80002a7e4d28) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7e4d28,ffff80003c971760,ffff80003c9716b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c971760) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c971760) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb233f9aa670, 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(0xfffffd806c103a28, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7e4d28,ffffffffffffffff,0,80000b1c,fffffd806e598468,fffffd8007bfb548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7e4d28,ffffffffffffffff,0,80000b1c,fffffd806e598468,fffffd8007bfb548) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806e598468,4,b1c,0,ffff80002a7e4d28) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806e598468,4,b1c,0,ffff80002a7e4d28) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7e4d28,ffff80003c971760,ffff80003c9716b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c971760) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c971760) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb233f9aa670, count: -5 ddb> show registers rdi 0xffff80002a7e4d28 rsi 0xffffffffffffffff rbp 0xffff80003c971480 rbx 0xfffffd8007bfb548 rdx 0 rcx 0x80000b1c __kernel_virt_to_phys+0xb1c rax 0xffff80002a7e4d28 r8 0xfffffd806e598468 r9 0xfffffd8007bfb548 r10 0x62c62d8a3713f8f3 r11 0xf4257ce212727e54 r12 0xffff80002a7e4d28 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000b1c __kernel_virt_to_phys+0xb1c rip 0xffffffff811c0fe8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c971400 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=71901 pid=40002 tcnt=3 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=0xffff80002a7e54f0,0xffff80002a7e4570 process=0xffff8000ffff9698 user=0xffff80003c96c000, vmspace=0xfffffd806c103a28 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 73528 334641 77274 -1 2 0x10 syz-executor 73528 231998 77274 -1 3 0x4000090 fsleep syz-executor 40002 469661 13147 0 2 0 syz-executor *40002 71901 13147 0 7 0x4000000 syz-executor 40002 32515 13147 0 3 0x4000080 fsleep syz-executor 89032 510332 77339 0 2 0 syz-executor 89032 494091 77339 0 3 0x4000080 fsleep syz-executor 20023 314025 62609 -1 2 0x10 syz-executor 20023 257982 62609 -1 3 0x4000090 fsleep syz-executor 20023 158852 62609 -1 3 0x4000090 fsleep syz-executor 20023 102021 62609 -1 3 0x4000090 fsleep syz-executor 5604 458917 5959 0 2 0 syz-executor 5604 108748 5959 0 3 0x4000080 fsleep syz-executor 5604 362569 5959 0 3 0x4000080 fsleep syz-executor 5604 297245 5959 0 3 0x4000080 fsleep syz-executor 13570 75302 0 0 3 0x14280 nfsidl nfsio 67715 279013 0 0 3 0x14280 nfsidl nfsio 79530 275524 0 0 3 0x14280 nfsidl nfsio 84784 198606 0 0 3 0x14280 nfsidl nfsio 69265 340815 0 0 3 0x14280 nfsidl nfsio 2848 370224 0 0 3 0x14280 nfsidl nfsio 23639 172233 0 0 3 0x14280 nfsidl nfsio 57365 231714 0 0 3 0x14280 nfsidl nfsio 86814 491432 0 0 3 0x14280 nfsidl nfsio 8746 185743 0 0 3 0x14280 nfsidl nfsio 33421 204762 0 0 3 0x14280 nfsidl nfsio 74565 187317 0 0 3 0x14280 nfsidl nfsio 17830 92909 0 0 3 0x14280 nfsidl nfsio 10021 313208 0 0 3 0x14280 nfsidl nfsio 77054 378617 0 0 3 0x14280 nfsidl nfsio 19426 276791 0 0 3 0x14280 nfsidl nfsio 69501 55407 0 0 3 0x14280 nfsidl nfsio 61765 362459 0 0 3 0x14280 nfsidl nfsio 97744 472275 0 0 3 0x14280 nfsidl nfsio 12849 49499 0 0 3 0x14280 nfsidl nfsio 7212 429546 0 0 3 0x14200 acct acct 45883 205053 1 0 3 0x100083 ttyin getty 77339 250852 35463 0 3 0x82 nanoslp syz-executor 85892 514858 0 0 3 0x14200 bored sosplice 5959 481855 35463 0 3 0x82 nanoslp syz-executor 77274 506644 35463 0 3 0x82 nanoslp syz-executor 13147 430866 35463 0 3 0x82 nanoslp syz-executor 68721 113221 35463 0 2 0x3 syz-executor 62609 440853 35463 0 3 0x82 nanoslp syz-executor 50665 290976 35463 0 2 0x2 syz-executor 67648 419273 35463 0 2 0x2 syz-executor 35463 157215 23484 0 2 0x2 syz-executor 23484 456443 99397 0 3 0x10008a sigsusp ksh 99397 461828 96090 0 3 0x98 kqread sshd-session 96090 325711 93938 0 3 0x92 kqread sshd-session 93938 32134 1 0 3 0x88 kqread sshd 36868 348907 47719 73 3 0x1100090 kqread syslogd 47719 126708 1 0 3 0x100082 sbwait syslogd 73421 299983 1 0 3 0x100080 kqread resolvd 30058 184334 47998 77 3 0x100092 kqread dhcpleased 89047 10501 47998 77 3 0x100092 kqread dhcpleased 47998 245007 1 0 3 0x80 kqread dhcpleased 54579 486304 0 0 3 0x14200 bored smr 47962 330472 0 0 2 0x14200 zerothread 49614 84051 0 0 3 0x14200 aiodoned aiodoned 8914 66932 0 0 3 0x14200 syncer update 77254 342116 0 0 3 0x14200 cleaner cleaner 45773 49722 0 0 3 0x14200 reaper reaper 57805 289457 0 0 3 0x14200 pgdaemon pagedaemon 75743 347592 0 0 3 0x14200 bored viomb 54177 262790 0 0 3 0x40014200 acpi0 acpi0 84205 340477 0 0 3 0x14200 bored softnet0 74838 495966 0 0 3 0x14200 bored systqmp 11047 505585 0 0 3 0x14200 bored systq 11200 395215 0 0 3 0x40014200 tmoslp softclock 61606 99193 0 0 3 0x40014200 idle0 1 415160 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 devbuf 10233 11213K 11379K 166960K 11822 0 pcb 19 18K 20K 166960K 251 0 rtable 200 7K 7K 166960K 493 0 pf 35 13K 20K 166960K 78 0 ifaddr 40 6K 7K 166960K 71 0 ifgroup 58 2K 2K 166960K 91 0 sysctl 3 1K 9K 166960K 16 0 counters 34 18K 18K 166960K 50 0 ioctlops 0 0K 4K 166960K 100 0 iov 0 0K 12K 166960K 23 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1372 86K 87K 166960K 1765 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 16 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 240K 166960K 571 0 sigio 0 0K 0K 166960K 111 0 proc 61 59K 83K 166960K 572 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 340 0 in_multi 78 5K 7K 166960K 144 0 ether_multi 1 0K 0K 166960K 6 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 253 1129K 1129K 166960K 253 0 exec 0 0K 1K 166960K 405 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 222 150K 168K 166960K 6845 0 UVM aobj 16 2K 2K 166960K 17 0 pinsyscall 36 72K 92K 166960K 1671 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 29 0 NDP 13 0K 2K 166960K 43 0 temp 52 8642K 8707K 166960K 22605 0 kqueue 13 20K 30K 166960K 102 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 120 126 0 123 3 0 3 3 0 8 2 rtentry 136 139 0 55 4 0 4 4 0 8 0 unpcb 144 346 0 331 4 0 4 4 0 8 3 syncache 336 6 0 6 1 1 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 246 0 241 8 6 2 7 0 8 1 arp 96 22 0 7 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 1 1 0 1 1 0 8 0 inpcb 328 830 0 819 25 18 7 20 0 8 5 ip6q 72 4 0 0 1 0 1 1 0 8 0 ip6af 40 3 0 0 1 0 1 1 0 8 0 nd6 112 30 0 10 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 12 0 12 2 1 1 1 0 8 1 pppxif 1384 2 0 2 1 1 0 1 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfrule 1344 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 608 0 239 32 2 30 32 0 8 3 art_table 40 610 0 239 6 0 6 6 0 8 1 art_node 32 139 0 66 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 4 1 0 1 1 0 8 0 semapl 112 14 0 4 1 0 1 1 0 8 0 shmpl 112 14 0 1 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2413 0 908 95 0 95 95 0 8 0 ffsino 256 2413 0 908 95 0 95 95 0 8 0 nchpl 144 3211 0 1515 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 vnodes 216 2701 0 0 151 0 151 151 0 8 0 namei 1024 11646 0 11644 3 2 1 2 0 8 0 kstatmem 264 50 0 24 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 12014 0 12014 9 1 8 8 1 8 8 plimitpl 152 160 0 144 1 0 1 1 0 8 0 sigapl 424 868 0 806 8 0 8 8 0 8 0 knotepl 120 19229 0 19182 24 15 9 17 0 8 6 kqueuepl 184 147 0 138 1 0 1 1 0 8 0 pipepl 304 232 0 205 8 0 8 8 0 8 5 fdescpl 448 833 0 806 5 1 4 5 0 8 0 filepl 120 5556 0 5341 20 7 13 15 0 8 5 lockfpl 104 143 0 141 1 0 1 1 0 8 0 lockfspl 48 61 0 59 1 0 1 1 0 8 0 sessionpl 144 26 0 18 1 0 1 1 0 8 0 pgrppl 48 110 0 94 1 0 1 1 0 8 0 ucredpl 104 818 0 805 1 0 1 1 0 8 0 zombiepl 144 936 0 936 1 0 1 1 0 8 1 processpl 1152 868 0 806 5 0 5 5 0 8 0 procpl 664 1561 0 1489 8 0 8 8 0 8 0 sosppl 168 2 0 2 1 1 0 1 0 8 0 sockpl 552 1396 0 1367 28 17 11 19 0 8 7 mcl64k 65536 37 0 36 1 0 1 1 0 8 0 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 10 0 10 2 1 1 1 0 8 1 mcl4k 4096 3011 0 2961 16 8 8 15 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 865 0 861 2 1 1 2 0 8 0 mtagpl 96 5 0 5 1 1 0 1 0 8 0 mbufpl 256 9073 0 8910 24 4 20 24 0 8 8 bufpl 280 4203 0 121 292 0 292 292 0 8 0 anonpl 24 151420 0 148441 54 9 45 45 0 187 18 amapchunkpl 152 21996 0 21548 35 4 31 31 0 158 9 amappl16 200 2705 0 2669 18 3 15 15 0 8 12 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 11 0 11 1 1 0 1 0 8 0 amappl13 176 419 0 418 1 0 1 1 0 8 0 amappl12 168 1199 0 1163 2 0 2 2 0 8 0 amappl11 160 17 0 17 1 1 0 1 0 8 0 amappl10 152 50 0 40 1 0 1 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 43 0 41 1 0 1 1 0 8 0 amappl7 128 88 0 87 1 0 1 1 0 8 0 amappl6 120 280 0 268 1 0 1 1 0 8 0 amappl5 112 73 0 66 1 0 1 1 0 8 0 amappl4 104 416 0 393 1 0 1 1 0 8 0 amappl3 96 3632 0 3549 3 0 3 3 0 8 0 amappl2 88 963 0 895 2 0 2 2 0 8 0 amappl1 80 11530 0 11000 15 2 13 15 0 8 0 amappl 88 6045 0 5891 5 0 5 5 0 92 0 uvmvnodes 80 2701 0 0 56 0 56 56 0 8 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 128 254 0 254 2 1 1 1 0 8 1 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 16 0 1 1 0 1 1 0 8 0 uaddrrnd 24 833 0 806 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 833 0 806 1 0 1 1 0 8 0 vmmpekpl 168 8852 0 8806 3 0 3 3 0 8 0 vmmpepl 168 60752 0 59068 101 9 92 92 0 357 9 vmsppl 368 832 0 806 4 1 3 4 0 8 0 rwobjpl 40 21742 0 18191 39 0 39 39 0 8 2 pdppl 4096 1673 0 1612 103 36 67 79 0 8 6 pvpl 32 387738 0 379825 125 7 118 118 0 265 29 pmappl 216 832 0 806 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 400 0 66 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7e4d28,ffffffffffffffff,0,80000b1c,fffffd806e598468,fffffd8007bfb548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7e4d28,ffffffffffffffff,0,80000b1c,fffffd806e598468,fffffd8007bfb548) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806e598468,4,b1c,0,ffff80002a7e4d28) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806e598468,4,b1c,0,ffff80002a7e4d28) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7e4d28,ffff80003c971760,ffff80003c9716b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c971760) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c971760) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb233f9aa670, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7e4d28,ffffffffffffffff,0,80000b1c,fffffd806e598468,fffffd8007bfb548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7e4d28,ffffffffffffffff,0,80000b1c,fffffd806e598468,fffffd8007bfb548) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806e598468,4,b1c,0,ffff80002a7e4d28) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806e598468,4,b1c,0,ffff80002a7e4d28) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7e4d28,ffff80003c971760,ffff80003c9716b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c971760) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c971760) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb233f9aa670, count: -5