uvm_fault(0xfffffd806cd5d460, 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 * 42990 78130 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7f87e8,ffffffffffffffff,0,80000512,fffffd806d4d20d8,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f87e8,ffffffffffffffff,0,80000512,fffffd806d4d20d8,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806d4d20d8,4,512,ffffffff,ffff80002a7f87e8) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806d4d20d8,4,512,ffffffff,ffff80002a7f87e8) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff80002a7f87e8,ffff800035d49040,ffff800035d48f90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800035d49040) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035d49040) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1a9c426cd30, 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(0xfffffd806cd5d460, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7f87e8,ffffffffffffffff,0,80000512,fffffd806d4d20d8,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f87e8,ffffffffffffffff,0,80000512,fffffd806d4d20d8,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806d4d20d8,4,512,ffffffff,ffff80002a7f87e8) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806d4d20d8,4,512,ffffffff,ffff80002a7f87e8) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff80002a7f87e8,ffff800035d49040,ffff800035d48f90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800035d49040) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035d49040) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1a9c426cd30, count: -5 ddb> show registers rdi 0xffff80002f138000 rsi 0x71e rbp 0xffff800035d48d60 rbx 0xfffffd8007bfb888 rdx 0xffff80002f138000 rcx 0x71d rax 0xffffffff82fb0823 ktrops+0x43 r8 0xfffffd806d4d20d8 r9 0xfffffd8007bfb888 r10 0x1a778ae67a7d7c68 r11 0xc1129cd9fcf2b35c r12 0xffff80002a7f87e8 r13 0x1 r14 0xffffffffffffffff r15 0x80000512 __kernel_virt_to_phys+0x512 rip 0xffffffff82fb0838 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800035d48ce0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=42990 pid=78130 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=60, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7f82b8,0xffff80002a7f8d28 process=0xffff80003c988930 user=0xffff800035d44000, vmspace=0xfffffd806cd5d460 estcpu=10, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 93403 131043 86901 0 2 0 syz-executor 3023 3862 5157 0 2 0 syz-executor 3023 172400 5157 0 3 0x4000080 fsleep syz-executor 17214 502565 15908 0 2 0x10 syz-executor 17214 18953 15908 0 3 0x4000090 fsleep syz-executor 39994 301196 48006 0 2 0 syz-executor 39994 462411 48006 0 2 0x4000000 syz-executor 18143 507931 0 0 3 0x14200 bored sosplice 78130 189789 12887 0 2 0 syz-executor *78130 42990 12887 0 7 0x4000000 syz-executor 63206 439385 69704 0 2 0xc80 syz-executor 63206 321256 69704 0 3 0x4000080 kqsel syz-executor 63206 482847 69704 0 3 0x4000080 fsleep syz-executor 15908 261683 31254 0 3 0x82 nanoslp syz-executor 86901 375137 31254 0 3 0x82 nanoslp syz-executor 46053 214159 31254 0 2 0x2 syz-executor 69704 119470 31254 0 2 0xc82 syz-executor 5157 137967 31254 0 3 0x82 nanoslp syz-executor 12887 148008 31254 0 2 0xc82 syz-executor 48006 319399 31254 0 3 0x82 nanoslp syz-executor 18649 309260 31254 0 2 0x2 syz-executor 31254 51044 89448 0 3 0x82 kqread syz-executor 89448 166120 75968 0 3 0x10008a sigsusp ksh 75968 208924 35416 0 3 0x98 kqread sshd-session 35416 499770 27066 0 3 0x92 kqread sshd-session 14864 109958 1 0 3 0x100083 ttyin getty 27066 62231 1 0 3 0x88 kqread sshd 99202 420961 33010 73 3 0x1100090 kqread syslogd 33010 240662 1 0 3 0x100082 sbwait syslogd 91142 514157 1 0 3 0x100080 kqread resolvd 13936 37980 12763 77 3 0x100092 kqread dhcpleased 27125 312917 12763 77 3 0x100092 kqread dhcpleased 12763 246560 1 0 3 0x80 kqread dhcpleased 97747 170725 0 0 3 0x14200 bored smr 75518 87501 0 0 2 0x14200 zerothread 47884 324698 0 0 3 0x14200 aiodoned aiodoned 92323 508229 0 0 3 0x14200 syncer update 40525 5740 0 0 3 0x14200 cleaner cleaner 34732 447019 0 0 3 0x14200 reaper reaper 65902 313348 0 0 3 0x14200 pgdaemon pagedaemon 16020 450122 0 0 3 0x14200 bored viomb 21572 263200 0 0 3 0x40014200 acpi0 acpi0 83161 54298 0 0 3 0x14200 bored softnet7 64834 95647 0 0 3 0x14200 bored softnet6 58776 388813 0 0 3 0x14200 bored softnet5 98206 126851 0 0 3 0x14200 bored softnet4 83085 294477 0 0 3 0x14200 bored softnet3 21776 17351 0 0 3 0x14200 bored softnet2 47392 492230 0 0 3 0x14200 bored softnet1 54217 273945 0 0 3 0x14200 bored softnet0 24367 348540 0 0 3 0x14200 smrbar systqmp 73172 320953 0 0 3 0x14200 bored systq 39582 478634 0 0 3 0x40014200 tmoslp softclock 67383 383606 0 0 3 0x40014200 idle0 1 181128 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 10176 11113K 11170K 166960K 11264 0 pcb 18 12K 12K 166960K 21 0 rtable 205 5K 5K 166960K 258 0 pf 30 12K 12K 166960K 30 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 17K 166960K 32 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 2K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1336 84K 84K 166960K 1358 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 97K 166960K 147 0 sigio 1 0K 0K 166960K 1 0 proc 57 58K 124K 166960K 472 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 37 175K 175K 166960K 37 0 exec 0 0K 1K 166960K 351 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 206 158K 173K 166960K 2798 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 37 74K 96K 166960K 1179 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 27 2K 2K 166960K 27 0 temp 35 8630K 8694K 166960K 3737 0 kqueue 14 22K 22K 166960K 23 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 38 0 34 1 0 1 1 0 8 0 rtentry 136 95 0 1 4 0 4 4 0 8 0 unpcb 144 42 0 25 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 10 0 4 1 0 1 1 0 8 0 arp 88 10 0 0 1 0 1 1 0 8 0 inpcb 328 65 0 54 2 0 2 2 0 8 1 nd6 104 16 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 436 0 0 28 0 28 28 0 8 0 art_table 40 437 0 0 5 0 5 5 0 8 0 art_node 32 95 0 10 1 0 1 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1565 0 59 95 0 95 95 0 8 0 ffsino 256 1565 0 59 95 0 95 95 0 8 0 nchpl 144 1763 0 80 63 0 63 63 0 8 0 uvmvnodes 80 1650 0 0 34 0 34 34 0 8 0 vnodes 216 1650 0 0 92 0 92 92 0 8 0 namei 1024 5158 0 5155 2 0 2 2 0 8 1 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6240 0 6240 8 0 8 8 1 8 8 plimitpl 152 31 0 13 1 0 1 1 0 8 0 sigapl 424 431 0 382 7 0 7 7 0 8 1 knotepl 120 3291 0 3241 2 0 2 2 0 8 0 kqueuepl 184 21 0 9 1 0 1 1 0 8 0 pipepl 304 101 0 72 3 0 3 3 0 8 0 fdescpl 448 410 0 382 5 0 5 5 0 8 1 filepl 120 1355 0 1128 7 0 7 7 0 8 0 lockfpl 104 9 0 6 1 0 1 1 0 8 0 lockfspl 48 6 0 3 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 31 0 15 1 0 1 1 0 8 0 ucredpl 104 77 0 65 1 0 1 1 0 8 0 zombiepl 144 382 0 382 1 0 1 1 0 8 1 processpl 1168 431 0 382 5 0 5 5 0 8 1 procpl 664 451 0 396 6 0 6 6 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 552 145 0 113 3 0 3 3 0 8 0 mcl64k 65536 3 0 3 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 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2475 0 2422 15 0 15 15 0 8 6 mcl2k 2048 164 0 163 1 0 1 1 0 8 0 mtagpl 96 5 0 4 1 0 1 1 0 8 0 mbufpl 256 3962 0 3829 10 0 10 10 0 8 0 bufpl 280 2839 0 117 195 0 195 195 0 8 0 anonpl 24 90410 0 87531 23 0 23 23 0 187 3 amapchunkpl 152 8007 0 7590 19 0 19 19 0 158 0 amappl16 200 1497 0 1481 5 0 5 5 0 8 4 amappl15 192 24 0 24 1 0 1 1 0 8 1 amappl14 184 109 0 99 1 0 1 1 0 8 0 amappl13 176 30 0 30 1 0 1 1 0 8 1 amappl12 168 1018 0 991 3 0 3 3 0 8 1 amappl11 160 44 0 34 1 0 1 1 0 8 0 amappl10 152 20 0 20 1 0 1 1 0 8 1 amappl9 144 254 0 254 1 0 1 1 0 8 1 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 99 0 89 1 0 1 1 0 8 0 amappl6 120 190 0 187 1 0 1 1 0 8 0 amappl5 112 125 0 119 1 0 1 1 0 8 0 amappl4 104 281 0 265 1 0 1 1 0 8 0 amappl3 96 1254 0 1160 3 0 3 3 0 8 0 amappl2 88 619 0 567 2 0 2 2 0 8 0 amappl1 80 8502 0 7961 14 0 14 14 0 8 0 amappl 88 2154 0 2011 4 0 4 4 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 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 410 0 382 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 410 0 382 1 0 1 1 0 8 0 vmmpekpl 168 5036 0 5009 2 0 2 2 0 8 0 vmmpepl 168 33418 0 31699 81 0 81 81 0 357 2 vmsppl 368 409 0 382 4 0 4 4 0 8 1 rwobjpl 40 13734 0 11279 26 0 26 26 0 8 0 pdppl 4096 826 0 764 94 12 82 82 0 8 20 pvpl 32 203667 0 195874 70 0 70 70 0 265 0 pmappl 216 409 0 382 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 366 0 12 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7f87e8,ffffffffffffffff,0,80000512,fffffd806d4d20d8,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f87e8,ffffffffffffffff,0,80000512,fffffd806d4d20d8,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806d4d20d8,4,512,ffffffff,ffff80002a7f87e8) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806d4d20d8,4,512,ffffffff,ffff80002a7f87e8) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff80002a7f87e8,ffff800035d49040,ffff800035d48f90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800035d49040) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035d49040) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1a9c426cd30, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7f87e8,ffffffffffffffff,0,80000512,fffffd806d4d20d8,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f87e8,ffffffffffffffff,0,80000512,fffffd806d4d20d8,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806d4d20d8,4,512,ffffffff,ffff80002a7f87e8) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806d4d20d8,4,512,ffffffff,ffff80002a7f87e8) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff80002a7f87e8,ffff800035d49040,ffff800035d48f90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800035d49040) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035d49040) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1a9c426cd30, count: -5