uvm_fault(0xfffffd806c06ccb8, 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 *341293 64219 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7bcf78,ffffffffffffffff,0,80000106,fffffd805ffec980,fffffd807f7d76e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7bcf78,ffffffffffffffff,0,80000106,fffffd805ffec980,fffffd807f7d76e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805ffec980,4,106,0,ffff80002a7bcf78) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805ffec980,4,106,0,ffff80002a7bcf78) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7bcf78,ffff800038923160,ffff8000389230b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800038923160) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038923160) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc4df2fbc20, 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(0xfffffd806c06ccb8, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7bcf78,ffffffffffffffff,0,80000106,fffffd805ffec980,fffffd807f7d76e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7bcf78,ffffffffffffffff,0,80000106,fffffd805ffec980,fffffd807f7d76e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805ffec980,4,106,0,ffff80002a7bcf78) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805ffec980,4,106,0,ffff80002a7bcf78) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7bcf78,ffff800038923160,ffff8000389230b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800038923160) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038923160) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc4df2fbc20, count: -5 ddb> show registers rdi 0xffff80002ccfc000 rsi 0x1ebf __ALIGN_SIZE+0xebf rbp 0xffff800038922e80 rbx 0xfffffd807f7d76e8 rdx 0xffff80002ccfc000 rcx 0x1ebe __ALIGN_SIZE+0xebe rax 0xffffffff81693753 ktrops+0x43 r8 0xfffffd805ffec980 r9 0xfffffd807f7d76e8 r10 0xe0a2f694d3312f80 r11 0x9ee6bf264a18c326 r12 0xffff80002a7bcf78 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000106 __kernel_virt_to_phys+0x106 rip 0xffffffff81693768 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800038922e00 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=341293 pid=64219 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7bd9b8,0xffffffff838dc768 process=0xffff800035d15a28 user=0xffff80003891e000, vmspace=0xfffffd806c06ccb8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 64219 218360 20110 0 2 0 syz-executor *64219 341293 20110 0 7 0x4000000 syz-executor 69466 377748 91201 0 3 0x80 nanoslp syz-executor 69466 131259 91201 0 3 0x4000080 msgwait syz-executor 69466 290955 91201 0 3 0x4000080 fsleep syz-executor 93721 231017 87731 0 3 0x80 nanoslp syz-executor 93721 308950 87731 0 3 0x4000080 lockf syz-executor 93721 250550 87731 0 3 0x4000080 fsleep syz-executor 93579 40367 0 0 3 0x14200 bored sosplice 33868 354202 59779 0 3 0x90 nanoslp syz-executor 33868 229966 59779 0 3 0x4000090 kqread syz-executor 33868 390155 59779 0 3 0x4000090 fsleep syz-executor 51238 324529 13564 0 3 0x80 nanoslp syz-executor 51238 297217 13564 0 3 0x4000080 kqsel syz-executor 51238 103055 13564 0 3 0x4000080 fsleep syz-executor 51238 169644 13564 0 3 0x4000080 fsleep syz-executor 15164 272094 33497 0 3 0x80 nanoslp syz-executor 15164 462436 33497 0 3 0x4000080 sbwait syz-executor 15164 145769 33497 0 3 0x4000080 fsleep syz-executor 72503 419700 0 0 3 0x14280 nfsidl nfsio 57074 492911 0 0 3 0x14280 nfsidl nfsio 18367 119216 0 0 3 0x14280 nfsidl nfsio 78545 5399 0 0 3 0x14280 nfsidl nfsio 26524 178193 0 0 3 0x14280 nfsidl nfsio 79022 299918 0 0 3 0x14280 nfsidl nfsio 17512 309749 0 0 3 0x14280 nfsidl nfsio 98764 77707 0 0 3 0x14280 nfsidl nfsio 84286 312613 0 0 3 0x14280 nfsidl nfsio 45278 394387 0 0 3 0x14280 nfsidl nfsio 41008 445569 0 0 3 0x14280 nfsidl nfsio 83929 80278 0 0 3 0x14280 nfsidl nfsio 75115 373459 0 0 3 0x14280 nfsidl nfsio 92483 255789 0 0 3 0x14280 nfsidl nfsio 95027 29551 0 0 3 0x14280 nfsidl nfsio 76079 34209 0 0 3 0x14280 nfsidl nfsio 24945 358746 0 0 3 0x14280 nfsidl nfsio 12440 237662 0 0 3 0x14280 nfsidl nfsio 21875 33203 0 0 3 0x14280 nfsidl nfsio 12831 493095 0 0 3 0x14280 nfsidl nfsio 87731 306047 40231 0 3 0x82 nanoslp syz-executor 13564 240621 40231 0 2 0x482 syz-executor 34319 4931 40231 0 2 0x2 syz-executor 59779 167673 40231 0 2 0x482 syz-executor 91201 428512 40231 0 2 0x482 syz-executor 33497 250584 40231 0 3 0x82 nanoslp syz-executor 20110 66861 40231 0 2 0x482 syz-executor 85528 330879 40231 0 2 0x2 syz-executor 40231 155043 38670 0 2 0x82 syz-executor 38670 188824 45059 0 3 0x10008a sigsusp ksh 45059 185487 17196 0 3 0x98 kqread sshd-session 17196 66750 89558 0 3 0x92 kqread sshd-session 67148 179708 1 0 3 0x100083 ttyin getty 89558 145160 1 0 3 0x88 kqread sshd 55569 21481 37121 73 3 0x1100090 kqread syslogd 37121 182366 1 0 3 0x100082 sbwait syslogd 65766 44958 1 0 3 0x100080 kqread resolvd 25970 435859 92162 77 3 0x100092 kqread dhcpleased 82010 331020 92162 77 3 0x100092 kqread dhcpleased 92162 171459 1 0 3 0x80 kqread dhcpleased 43458 365169 0 0 3 0x14200 bored smr 31108 107593 0 0 2 0x14200 zerothread 73055 355189 0 0 3 0x14200 aiodoned aiodoned 12754 99420 0 0 3 0x14200 syncer update 75673 333248 0 0 3 0x14200 cleaner cleaner 59188 447704 0 0 3 0x14200 reaper reaper 29320 343130 0 0 3 0x14200 pgdaemon pagedaemon 74988 235221 0 0 3 0x14200 bored viomb 53069 208110 0 0 3 0x40014200 acpi0 acpi0 20393 489329 0 0 3 0x14200 bored softnet3 72463 391053 0 0 3 0x14200 bored softnet2 34869 291094 0 0 3 0x14200 bored softnet1 4565 379310 0 0 2 0x14200 softnet0 45542 389874 0 0 3 0x14200 bored systqmp 99470 150287 0 0 3 0x14200 bored systq 16172 459856 0 0 3 0x40014200 tmoslp softclock 19566 222926 0 0 3 0x40014200 idle0 1 321590 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 10179 11044K 11518K 166960K 11442 0 pcb 18 12K 12K 166960K 47 0 rtable 238 8K 9K 166960K 395 0 pf 35 13K 21K 166960K 51 0 ifaddr 44 7K 8K 166960K 59 0 ifgroup 59 2K 2K 166960K 77 0 sysctl 1 1K 1K 166960K 1 0 counters 34 17K 18K 166960K 48 0 ioctlops 0 0K 4K 166960K 59 0 iov 0 0K 17K 166960K 9 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1402 88K 88K 166960K 1518 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 4 0K 0K 166960K 6 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 97K 166960K 257 0 sigio 0 0K 0K 166960K 5 0 proc 61 59K 124K 166960K 481 0 subproc 72 4K 4K 166960K 73 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 18 0 in_multi 96 7K 7K 166960K 113 0 ether_multi 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 364 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 220 151K 165K 166960K 3842 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 37 74K 96K 166960K 1289 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 9 0 NDP 14 0K 1K 166960K 36 0 temp 41 8667K 8731K 166960K 5295 0 kqueue 13 20K 26K 166960K 47 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 42 0 39 1 0 1 1 0 8 0 rtentry 136 124 0 15 4 0 4 4 0 8 0 unpcb 144 103 0 87 2 0 2 2 0 8 1 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 37 0 32 2 0 2 2 0 8 1 arp 88 19 0 1 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 0 1 0 1 1 0 8 0 inpcb 344 240 0 229 8 0 8 8 0 8 6 nd6 104 27 0 4 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 13 0 11 1 0 1 1 0 8 0 pppxif 1384 6 0 4 1 0 1 1 0 8 0 pfrule 1344 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 493 0 44 30 0 30 30 0 8 1 art_table 32 495 0 44 4 0 4 4 0 8 0 art_node 16 120 0 21 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 3 0 1 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1808 0 309 95 0 95 95 0 8 0 ffsino 248 1808 0 309 95 0 95 95 0 8 0 nchpl 144 2183 0 501 63 0 63 63 0 8 0 uvmvnodes 80 2003 0 0 41 0 41 41 0 8 0 vnodes 216 2003 0 0 112 0 112 112 0 8 0 namei 1024 6437 0 6436 2 0 2 2 0 8 1 kstatmem 264 38 0 12 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 6764 0 6764 2 0 2 2 1 8 2 plimitpl 152 44 0 28 1 0 1 1 0 8 0 sigapl 424 558 0 493 8 0 8 8 0 8 0 futexpl 64 2338 0 2332 1 0 1 1 0 8 0 knotepl 120 7358 0 7311 2 0 2 2 0 8 0 kqueuepl 184 68 0 57 1 0 1 1 0 8 0 pipepl 296 115 0 88 3 0 3 3 0 8 0 fdescpl 440 521 0 493 5 0 5 5 0 8 1 filepl 120 2149 0 1928 10 0 10 10 0 8 2 lockfpl 104 57 0 52 1 0 1 1 0 8 0 lockfspl 48 20 0 16 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 33 0 17 1 0 1 1 0 8 0 ucredpl 104 182 0 170 1 0 1 1 0 8 0 zombiepl 144 493 0 493 1 0 1 1 0 8 1 processpl 1112 558 0 493 5 0 5 5 0 8 0 procpl 656 735 0 658 8 0 8 8 0 8 1 sockpl 528 394 0 364 8 0 8 8 0 8 5 mcl64k 65536 7 0 6 1 0 1 1 0 8 0 mcl16k 16384 8 0 8 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2576 0 2523 14 0 14 14 0 8 7 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 240 0 238 2 0 2 2 0 8 1 mtagpl 96 12 0 5 1 0 1 1 0 8 0 mbufpl 256 5288 0 5099 14 0 14 14 0 8 0 bufpl 280 2481 0 117 169 0 169 169 0 8 0 anonpl 24 85781 0 82680 33 0 33 33 0 187 12 amapchunkpl 152 11120 0 10672 26 0 26 26 0 158 6 amappl16 200 1085 0 1055 4 0 4 4 0 8 1 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 102 0 92 1 0 1 1 0 8 0 amappl13 176 3 0 3 1 0 1 1 0 8 1 amappl12 168 1190 0 1162 3 0 3 3 0 8 1 amappl11 160 57 0 47 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 0 1 1 0 8 1 amappl9 144 266 0 266 1 0 1 1 0 8 1 amappl8 136 18 0 17 1 0 1 1 0 8 0 amappl7 128 110 0 100 1 0 1 1 0 8 0 amappl6 120 172 0 169 1 0 1 1 0 8 0 amappl5 112 110 0 104 1 0 1 1 0 8 0 amappl4 104 282 0 265 1 0 1 1 0 8 0 amappl3 96 1930 0 1830 3 0 3 3 0 8 0 amappl2 88 604 0 551 2 0 2 2 0 8 0 amappl1 80 8316 0 7767 14 0 14 14 0 8 2 amappl 88 3177 0 3021 5 0 5 5 0 92 1 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 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 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 521 0 493 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 521 0 493 1 0 1 1 0 8 0 vmmpekpl 168 5711 0 5680 2 0 2 2 0 8 0 vmmpepl 168 38285 0 36498 84 0 84 84 0 357 1 vmsppl 360 520 0 493 4 0 4 4 0 8 1 rwobjpl 32 14235 0 11389 24 0 24 24 0 8 0 pdppl 4096 1049 0 986 97 30 67 83 0 8 4 pvpl 32 230650 0 222143 100 0 100 100 0 265 24 pmappl 216 520 0 493 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 269 0 30 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7bcf78,ffffffffffffffff,0,80000106,fffffd805ffec980,fffffd807f7d76e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7bcf78,ffffffffffffffff,0,80000106,fffffd805ffec980,fffffd807f7d76e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805ffec980,4,106,0,ffff80002a7bcf78) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805ffec980,4,106,0,ffff80002a7bcf78) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7bcf78,ffff800038923160,ffff8000389230b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800038923160) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038923160) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc4df2fbc20, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7bcf78,ffffffffffffffff,0,80000106,fffffd805ffec980,fffffd807f7d76e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7bcf78,ffffffffffffffff,0,80000106,fffffd805ffec980,fffffd807f7d76e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805ffec980,4,106,0,ffff80002a7bcf78) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805ffec980,4,106,0,ffff80002a7bcf78) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7bcf78,ffff800038923160,ffff8000389230b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800038923160) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038923160) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc4df2fbc20, count: -5