uvm_fault(0xfffffd806bb74460, 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 * 34559 44522 0 0x1000 0x4080000 0 syz-executor ktrops(ffff80002a7f54e0,ffffffffffffffff,0,80000538,fffffd806346f0d8,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f54e0,ffffffffffffffff,0,80000538,fffffd806346f0d8,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806346f0d8,4,538,0,ffff80002a7f54e0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806346f0d8,4,538,0,ffff80002a7f54e0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f54e0,ffff80003ca3b780,ffff80003ca3b6d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca3b780) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca3b780) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x89ee52a1770, 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(0xfffffd806bb74460, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7f54e0,ffffffffffffffff,0,80000538,fffffd806346f0d8,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f54e0,ffffffffffffffff,0,80000538,fffffd806346f0d8,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806346f0d8,4,538,0,ffff80002a7f54e0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806346f0d8,4,538,0,ffff80002a7f54e0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f54e0,ffff80003ca3b780,ffff80003ca3b6d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca3b780) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca3b780) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x89ee52a1770, count: -5 ddb> show registers rdi 0xffff80002a7f54e0 rsi 0xffffffffffffffff rbp 0xffff80003ca3b4a0 rbx 0xfffffd8007bfb888 rdx 0 rcx 0x80000538 __kernel_virt_to_phys+0x538 rax 0xffff80002a7f54e0 r8 0xfffffd806346f0d8 r9 0xfffffd8007bfb888 r10 0xcbac67b7ca29d2ee r11 0x4d925ca950199124 r12 0xffff80002a7f54e0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000538 __kernel_virt_to_phys+0x538 rip 0xffffffff824aa128 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003ca3b420 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=34559 pid=44522 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a7f5a10 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7f5a10,0xffff80003694c568 process=0xffff80003c978028 user=0xffff80003ca36000, vmspace=0xfffffd806bb74460 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 44522 37015 71446 0 3 0x3000 suspend syz-executor *44522 34559 71446 0 7 0x4081000 syz-executor 25868 499781 3384 0 3 0x80 fsleep syz-executor 25868 27489 3384 0 2 0x4000000 syz-executor 98454 95718 53738 0 3 0x80 fsleep syz-executor 98454 323634 53738 0 2 0x4000000 syz-executor 33419 223392 29077 0 2 0 syz-executor 33419 235331 29077 0 2 0x4000000 syz-executor 64065 6785 31059 0 3 0x80 fsleep syz-executor 64065 393855 31059 0 3 0x4000080 pipewr syz-executor 64065 304110 31059 0 3 0x4000080 pipewr syz-executor 72307 102886 68342 0 3 0x80 fsleep syz-executor 72307 1023 68342 0 3 0x4000080 kqsel syz-executor 80080 178138 0 0 3 0x14280 nfsidl nfsio 50680 51665 0 0 3 0x14280 nfsidl nfsio 47947 52840 0 0 3 0x14280 nfsidl nfsio 96944 35833 0 0 3 0x14280 nfsidl nfsio 14221 18883 0 0 3 0x14280 nfsidl nfsio 73785 482207 0 0 3 0x14280 nfsidl nfsio 20279 316105 0 0 3 0x14280 nfsidl nfsio 25914 208954 0 0 3 0x14280 nfsidl nfsio 38421 463673 0 0 3 0x14280 nfsidl nfsio 91271 389805 0 0 3 0x14280 nfsidl nfsio 76811 487644 0 0 3 0x14280 nfsidl nfsio 38843 46611 0 0 3 0x14280 nfsidl nfsio 94065 447635 0 0 3 0x14280 nfsidl nfsio 53870 380169 0 0 3 0x14280 nfsidl nfsio 15112 99579 0 0 3 0x14280 nfsidl nfsio 51635 128800 0 0 3 0x14280 nfsidl nfsio 57591 505419 0 0 3 0x14280 nfsidl nfsio 36442 65267 0 0 3 0x14280 nfsidl nfsio 75057 519706 0 0 3 0x14280 nfsidl nfsio 22149 458266 0 0 3 0x14280 nfsidl nfsio 84957 186465 0 0 3 0x14200 bored sosplice 71446 5406 25461 0 3 0x82 nanoslp syz-executor 53738 354689 25461 0 3 0x82 nanoslp syz-executor 89996 14532 25461 0 3 0x82 wait syz-executor 68342 151575 25461 0 3 0x82 nanoslp syz-executor 31059 471611 25461 0 3 0x82 nanoslp syz-executor 1431 116026 25461 0 3 0x82 nanoslp syz-executor 3384 90673 25461 0 3 0x82 nanoslp syz-executor 29077 78400 25461 0 3 0x82 nanoslp syz-executor 25461 81210 34382 0 3 0x82 kqread syz-executor 34382 13587 75213 0 3 0x10008a sigsusp ksh 75213 245225 4488 0 3 0x98 kqread sshd-session 4488 39627 56012 0 3 0x92 kqread sshd-session 41923 207315 1 0 3 0x100083 ttyin getty 56012 254991 1 0 3 0x88 kqread sshd 7591 85110 72599 73 3 0x1100090 kqread syslogd 72599 69847 1 0 3 0x100082 sbwait syslogd 46327 22330 1 0 3 0x100080 kqread resolvd 32356 10767 95006 77 3 0x100092 kqread dhcpleased 12093 190200 95006 77 3 0x100092 kqread dhcpleased 95006 171092 1 0 3 0x80 kqread dhcpleased 91694 197569 0 0 3 0x14200 bored smr 22454 399389 0 0 2 0x14200 zerothread 83707 440350 0 0 3 0x14200 aiodoned aiodoned 33525 381135 0 0 3 0x14200 syncer update 62799 242345 0 0 3 0x14200 cleaner cleaner 43272 18921 0 0 3 0x14200 reaper reaper 19438 270516 0 0 3 0x14200 pgdaemon pagedaemon 59853 151299 0 0 3 0x14200 bored viomb 76913 493079 0 0 3 0x40014200 acpi0 acpi0 48877 226031 0 0 3 0x14200 bored softnet7 56258 453424 0 0 3 0x14200 bored softnet6 41718 486245 0 0 3 0x14200 bored softnet5 60696 187124 0 0 3 0x14200 bored softnet4 3430 225209 0 0 3 0x14200 bored softnet3 7482 273783 0 0 3 0x14200 bored softnet2 91387 272972 0 0 3 0x14200 bored softnet1 20575 513544 0 0 3 0x14200 bored softnet0 68253 280463 0 0 3 0x14200 bored systqmp 72226 258156 0 0 3 0x14200 bored systq 7260 433297 0 0 3 0x40014200 tmoslp softclock 72 89660 0 0 3 0x40014200 idle0 1 127549 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10192 11079K 11356K 166960K 11798 0 pcb 18 15K 22K 166960K 248 0 rtable 221 8K 8K 166960K 382 0 pf 30 13K 15K 166960K 67 0 ifaddr 39 7K 8K 166960K 60 0 ifgroup 46 2K 2K 166960K 85 0 sysctl 4 1K 9K 166960K 11 0 counters 31 17K 18K 166960K 47 0 ioctlops 0 0K 4K 166960K 159 0 iov 0 0K 20K 166960K 59 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1337 84K 85K 166960K 1898 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 20 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 543 0 sigio 0 0K 0K 166960K 6 0 proc 60 59K 83K 166960K 506 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 57 0 in_multi 88 6K 7K 166960K 116 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 396 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 231 143K 165K 166960K 6615 0 UVM aobj 22 2K 2K 166960K 24 0 pinsyscall 39 78K 92K 166960K 1595 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 26 0 NDP 10 0K 2K 166960K 39 0 temp 54 8638K 8765K 166960K 15560 0 kqueue 13 20K 32K 166960K 104 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 120 139 0 136 3 0 3 3 0 8 2 rtentry 136 113 0 19 4 0 4 4 0 8 0 unpcb 144 366 0 351 4 0 4 4 0 8 3 syncache 336 8 0 8 1 0 1 1 0 8 1 tcpqe 32 4 0 4 1 0 1 1 0 8 1 tcpcb 736 203 0 195 2 0 2 2 0 8 1 arp 96 13 0 2 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 7 0 2 1 0 1 1 0 8 0 inpcb 328 752 0 706 7 0 7 7 0 8 3 ip6q 72 4 0 2 1 0 1 1 0 8 0 ip6af 40 7 0 4 1 0 1 1 0 8 0 nd6 104 19 0 3 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 12 0 12 1 0 1 1 0 8 1 pppxif 1384 1 0 1 1 0 1 1 0 8 1 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pfstitem 24 3 0 0 1 0 1 1 0 8 0 pfstkey 128 3 0 0 1 0 1 1 0 8 0 pfstate 384 2 0 0 1 0 1 1 0 8 0 pfrule 1344 2 0 2 1 0 1 1 0 8 1 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 495 0 89 30 0 30 30 0 8 2 art_table 40 499 0 89 5 0 5 5 0 8 0 art_node 32 110 0 28 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 7 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 18 0 8 1 0 1 1 0 8 0 shmpl 112 21 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2624 0 1126 95 0 95 95 0 8 0 ffsino 256 2624 0 1126 95 0 95 95 0 8 0 nchpl 144 3430 0 1748 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 2819 0 0 58 0 58 58 0 8 0 vnodes 216 2819 0 0 157 0 157 157 0 8 0 namei 1024 11727 0 11726 2 0 2 2 0 8 1 kstatmem 264 46 0 26 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 12701 0 12701 8 0 8 8 1 8 8 plimitpl 152 178 0 159 1 0 1 1 0 8 0 sigapl 424 853 0 782 9 0 9 9 0 8 0 knotepl 120 20818 0 20771 31 21 10 21 0 8 8 kqueuepl 184 256 0 246 4 0 4 4 0 8 3 pipepl 304 200 0 172 3 0 3 3 0 8 0 fdescpl 448 811 0 781 5 0 5 5 0 8 1 filepl 120 5808 0 5556 12 0 12 12 0 8 4 lockfpl 104 192 0 190 1 0 1 1 0 8 0 lockfspl 48 50 0 48 1 0 1 1 0 8 0 sessionpl 144 25 0 17 1 0 1 1 0 8 0 pgrppl 48 41 0 25 1 0 1 1 0 8 0 ucredpl 104 1415 0 1404 1 0 1 1 0 8 0 zombiepl 144 785 0 782 1 0 1 1 0 8 0 processpl 1152 853 0 782 6 0 6 6 0 8 0 procpl 664 1506 0 1428 8 0 8 8 0 8 1 sosppl 168 5 0 4 1 0 1 1 0 8 0 sockpl 552 1336 0 1271 12 1 11 12 0 8 6 mcl64k 65536 26 0 26 1 0 1 1 0 8 1 mcl16k 16384 3 0 3 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 12 0 12 1 0 1 1 0 8 1 mcl4k 4096 3025 0 2969 13 0 13 13 0 8 5 mcl2k 2048 747 0 742 2 0 2 2 0 8 0 mtagpl 96 7 0 4 1 0 1 1 0 8 0 mbufpl 256 10697 0 10510 21 0 21 21 0 8 7 bufpl 280 4778 0 117 333 0 333 333 0 8 0 anonpl 24 156970 0 149629 45 0 45 45 0 187 0 amapchunkpl 152 22479 0 21965 43 0 43 43 0 158 23 amappl16 200 3169 0 2896 23 8 15 15 0 8 0 amappl15 192 27 0 27 1 0 1 1 0 8 1 amappl14 184 114 0 104 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 0 1 1 0 8 1 amappl12 168 1425 0 1395 3 0 3 3 0 8 1 amappl11 160 50 0 39 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 0 1 1 0 8 1 amappl9 144 253 0 253 1 0 1 1 0 8 1 amappl8 136 50 0 49 1 0 1 1 0 8 0 amappl7 128 107 0 96 1 0 1 1 0 8 0 amappl6 120 174 0 171 1 0 1 1 0 8 0 amappl5 112 132 0 125 1 0 1 1 0 8 0 amappl4 104 317 0 302 1 0 1 1 0 8 0 amappl3 96 3505 0 3410 3 0 3 3 0 8 0 amappl2 88 1063 0 992 2 0 2 2 0 8 0 amappl1 80 10498 0 9949 14 0 14 14 0 8 0 amappl 88 5858 0 5689 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 254 0 254 1 0 1 1 0 8 1 dma64 64 7 0 7 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 23 0 2 1 0 1 1 0 8 0 uaddrrnd 24 811 0 781 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 811 0 781 1 0 1 1 0 8 0 vmmpekpl 168 8402 0 8373 2 0 2 2 0 8 0 vmmpepl 168 58460 0 56324 94 0 94 94 0 357 1 vmsppl 368 810 0 781 4 0 4 4 0 8 1 rwobjpl 40 21136 0 17202 40 0 40 40 0 8 0 pdppl 4096 1628 0 1562 106 40 66 78 0 8 0 pvpl 32 387063 0 373334 117 0 117 117 0 265 6 pmappl 216 810 0 781 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 389 0 40 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7f54e0,ffffffffffffffff,0,80000538,fffffd806346f0d8,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f54e0,ffffffffffffffff,0,80000538,fffffd806346f0d8,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806346f0d8,4,538,0,ffff80002a7f54e0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806346f0d8,4,538,0,ffff80002a7f54e0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f54e0,ffff80003ca3b780,ffff80003ca3b6d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca3b780) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca3b780) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x89ee52a1770, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7f54e0,ffffffffffffffff,0,80000538,fffffd806346f0d8,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f54e0,ffffffffffffffff,0,80000538,fffffd806346f0d8,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806346f0d8,4,538,0,ffff80002a7f54e0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806346f0d8,4,538,0,ffff80002a7f54e0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f54e0,ffff80003ca3b780,ffff80003ca3b6d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca3b780) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca3b780) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x89ee52a1770, count: -5