uvm_fault(0xfffffd806c210590, 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 *122772 62820 0 0 0x4000000 0 syz-executor ktrops(ffff800030df42a8,ffffffffffffffff,0,c0000d06,fffffd8063b98e90,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800030df42a8,ffffffffffffffff,0,c0000d06,fffffd8063b98e90,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8063b98e90,4,40000d06,0,ffff800030df42a8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8063b98e90,4,40000d06,0,ffff800030df42a8) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff800030df42a8,ffff800037632f70,ffff800037632ec0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037632f70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x30e58269270, 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(0xfffffd806c210590, 0xf, 0, 1) -> e ddb> trace ktrops(ffff800030df42a8,ffffffffffffffff,0,c0000d06,fffffd8063b98e90,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800030df42a8,ffffffffffffffff,0,c0000d06,fffffd8063b98e90,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8063b98e90,4,40000d06,0,ffff800030df42a8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8063b98e90,4,40000d06,0,ffff800030df42a8) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff800030df42a8,ffff800037632f70,ffff800037632ec0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037632f70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x30e58269270, count: -5 ddb> show registers rdi 0xffff800031ff8000 rsi 0xac4 rbp 0xffff800037632c90 rbx 0xfffffd807f7d7548 rdx 0xffff800031ff8000 rcx 0xac3 rax 0xffffffff81077613 ktrops+0x43 r8 0xfffffd8063b98e90 r9 0xfffffd807f7d7548 r10 0xf4aaf6d99bc17ccd r11 0xfda3a05af163b3b8 r12 0xffff800030df42a8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xc0000d06 rip 0xffffffff81077628 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800037632c10 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=122772 pid=62820 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=80, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800030df4020,0xffff800030df4f60 process=0xffff8000ffff5e10 user=0xffff80003762e000, vmspace=0xfffffd806c210590 estcpu=30, cpticks=0, pctcpu=0.1, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 38347 466169 98006 0 2 0 syz-executor 38347 53352 98006 0 3 0x4000080 kqsel syz-executor 70842 138033 70202 0 2 0 syz-executor 70842 212825 70202 0 2 0x4000000 syz-executor 50778 523575 94615 0 2 0 syz-executor 50778 513731 94615 0 2 0x4000000 syz-executor 36770 173665 43890 0 2 0 syz-executor 36770 391974 43890 0 2 0x4000000 syz-executor 36770 109120 43890 0 3 0x4000080 fsleep syz-executor 98386 472700 53891 0 2 0x10 syz-executor 98386 509798 53891 0 3 0x4000090 fsleep syz-executor 29852 478922 26390 0 2 0 syz-executor 29852 414909 26390 0 3 0x4000080 kqpoll syz-executor 29852 129493 26390 0 3 0x4000080 fsleep syz-executor 62820 287732 1569 0 2 0 syz-executor *62820 122772 1569 0 7 0x4000000 syz-executor 370 216482 49843 0 2 0 syz-executor 370 470542 49843 0 3 0x4000080 fsleep syz-executor 14320 355300 1 0 3 0x100083 ttyin getty 3834 203148 0 0 3 0x14200 bored sosplice 49843 501374 19551 0 3 0x82 nanoslp syz-executor 43890 465917 19551 0 3 0x82 nanoslp syz-executor 1569 253285 19551 0 3 0x82 nanoslp syz-executor 53891 497675 19551 0 3 0x82 nanoslp syz-executor 70202 154185 19551 0 3 0x82 nanoslp syz-executor 98006 372896 19551 0 3 0x82 nanoslp syz-executor 94615 11442 19551 0 3 0x82 nanoslp syz-executor 26390 167435 19551 0 3 0x82 nanoslp syz-executor 19551 514579 23311 0 3 0x82 kqread syz-executor 23311 176434 20650 0 3 0x10008a sigsusp ksh 20650 183777 5100 0 3 0x98 kqread sshd-session 5100 484594 15428 0 3 0x92 kqread sshd-session 15428 331311 1 0 3 0x88 kqread sshd 1005 161123 25790 73 3 0x1100090 kqread syslogd 25790 94072 1 0 3 0x100082 sbwait syslogd 42520 9773 1 0 3 0x100080 kqread resolvd 72044 477914 59559 77 3 0x100092 kqread dhcpleased 74459 230741 59559 77 3 0x100092 kqread dhcpleased 59559 432646 1 0 3 0x80 kqread dhcpleased 38797 262217 0 0 3 0x14200 bored smr 67092 153106 0 0 2 0x14200 zerothread 81513 436631 0 0 3 0x14200 aiodoned aiodoned 94411 318221 0 0 3 0x14200 syncer update 54135 382021 0 0 3 0x14200 cleaner cleaner 72188 94579 0 0 3 0x14200 reaper reaper 18698 320592 0 0 3 0x14200 pgdaemon pagedaemon 1221 85755 0 0 3 0x14200 bored viomb 45642 338361 0 0 3 0x40014200 acpi0 acpi0 62920 244093 0 0 3 0x14200 bored softnet3 7553 521421 0 0 3 0x14200 bored softnet2 78809 398454 0 0 3 0x14200 bored softnet1 39733 14594 0 0 3 0x14200 bored softnet0 83472 359673 0 0 3 0x14200 bored systqmp 68088 430034 0 0 3 0x14200 bored systq 2623 116322 0 0 3 0x40014200 tmoslp softclock 40104 48340 0 0 3 0x40014200 idle0 1 421875 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 10215 11129K 11540K 166960K 12214 0 pcb 17 16K 21K 166960K 271 0 rtable 186 8K 9K 166960K 477 0 pf 34 13K 269K 166960K 82 0 ifaddr 35 5K 7K 166960K 69 0 ifgroup 50 2K 2K 166960K 105 0 sysctl 3 0K 2K 166960K 4 0 counters 30 17K 18K 166960K 45 0 ioctlops 0 0K 4K 166960K 83 0 iov 0 0K 16K 166960K 51 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1491 94K 94K 166960K 2172 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 16 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 33 0 dirhash 12 2K 2K 166960K 39 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 93K 166960K 770 0 sigio 0 0K 0K 166960K 18 0 proc 60 59K 91K 166960K 536 0 subproc 104 6K 6K 166960K 105 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 114 0 in_multi 73 5K 7K 166960K 157 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 507 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 228 72K 88K 166960K 8556 0 UVM aobj 58 4K 4K 166960K 62 0 pinsyscall 39 78K 96K 166960K 1802 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 36 0 NDP 11 0K 2K 166960K 48 0 temp 77 6820K 6948K 166960K 31373 0 kqueue 13 20K 36K 166960K 161 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 120 116 0 112 2 0 2 2 0 8 1 rtentry 112 144 0 64 4 0 4 4 0 8 0 unpcb 144 603 0 580 2 0 2 2 0 8 1 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 424 0 418 14 5 9 14 0 8 8 arp 88 23 0 8 1 0 1 1 0 8 0 ipq 40 3 0 1 1 0 1 1 0 8 0 ipqe 40 5 0 3 1 0 1 1 0 8 0 inpcb 336 1257 0 1244 15 5 10 15 0 8 8 nd6 104 33 0 14 1 0 1 1 0 8 0 pkpcb 40 5 0 4 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 6 0 6 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 3 0 0 1 0 1 1 0 8 0 pfstkey 128 6 0 3 1 0 1 1 0 8 0 pfstate 344 5 0 3 1 0 1 1 0 8 0 pfrule 1344 5 0 4 1 0 1 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 615 0 260 31 0 31 31 0 8 6 art_table 32 619 0 260 4 0 4 4 0 8 0 art_node 16 138 0 66 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 29 0 19 1 0 1 1 0 8 0 shmpl 112 59 0 4 2 0 2 2 0 8 0 dirhash 1024 36 0 19 3 0 3 3 0 8 0 dino2pl 256 2861 0 1367 95 0 95 95 0 8 0 ffsino 240 2862 0 1367 89 0 89 89 0 8 0 nchpl 144 3986 0 2306 63 0 63 63 0 8 0 uvmvnodes 80 3443 0 0 71 0 71 71 0 8 0 vnodes 216 3443 0 0 192 0 192 192 0 8 0 namei 1024 14312 0 14311 3 2 1 2 0 8 0 kstatmem 264 52 0 30 3 0 3 3 0 8 1 scsiplug 72 6 0 6 1 0 1 1 0 8 1 scxspl 216 11451 0 11451 10 2 8 8 1 8 8 plimitpl 152 287 0 270 1 0 1 1 0 8 0 sigapl 424 1055 0 1008 6 0 6 6 0 8 0 futexpl 64 10305 0 10301 1 0 1 1 0 8 0 knotepl 120 29439 0 29391 18 7 11 16 0 8 8 kqueuepl 184 307 0 296 4 0 4 4 0 8 3 pipepl 288 160 0 132 3 0 3 3 0 8 1 fdescpl 432 1036 0 1006 5 1 4 5 0 8 0 filepl 120 7709 0 7446 18 0 18 18 0 8 7 lockfpl 104 214 0 211 1 0 1 1 0 8 0 lockfspl 48 81 0 78 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 37 0 21 1 0 1 1 0 8 0 ucredpl 104 1563 0 1551 1 0 1 1 0 8 0 zombiepl 144 1008 0 1008 1 0 1 1 0 8 1 processpl 1096 1055 0 1008 4 0 4 4 0 8 0 procpl 648 2046 0 1989 6 0 6 6 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 504 1996 0 1956 38 23 15 25 0 8 9 mcl64k 65536 8 0 8 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 26 0 26 2 1 1 1 0 8 1 mcl4k 4096 3519 0 3467 15 6 9 15 0 8 2 mcl2k2 2112 4 0 4 1 0 1 1 0 8 1 mcl2k 2048 788 0 784 2 0 2 2 0 8 1 mtagpl 96 42 0 5 2 1 1 1 0 8 0 mbufpl 256 11447 0 11258 17 0 17 17 0 8 1 bufpl 280 3699 0 104 257 0 257 257 0 8 0 anonpl 24 216382 0 212819 62 4 58 58 0 187 34 amapchunkpl 152 28493 0 27992 36 0 36 36 0 158 16 amappl16 200 5641 0 5594 23 12 11 15 0 8 8 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 111 0 101 1 0 1 1 0 8 0 amappl13 176 8 0 8 2 1 1 1 0 8 1 amappl12 168 1656 0 1626 2 0 2 2 0 8 0 amappl11 160 49 0 39 1 0 1 1 0 8 0 amappl10 152 13 0 13 2 1 1 1 0 8 1 amappl9 144 140 0 140 1 1 0 1 0 8 0 amappl8 136 20 0 18 1 0 1 1 0 8 0 amappl7 128 99 0 88 1 0 1 1 0 8 0 amappl6 120 181 0 180 1 0 1 1 0 8 0 amappl5 112 151 0 142 1 0 1 1 0 8 0 amappl4 104 285 0 271 1 0 1 1 0 8 0 amappl3 96 5188 0 5091 3 0 3 3 0 8 0 amappl2 88 1335 0 1255 2 0 2 2 0 8 0 amappl1 80 9265 0 8747 14 2 12 13 0 8 0 amappl 88 8142 0 7968 5 0 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 128 258 0 258 2 1 1 1 0 8 1 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 9 0 9 2 1 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 61 0 4 2 0 2 2 0 8 0 uaddrrnd 24 1036 0 1006 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1036 0 1006 1 0 1 1 0 8 0 vmmpekpl 168 9078 0 9042 2 0 2 2 0 8 0 vmmpepl 168 70508 0 68700 89 0 89 89 0 357 10 vmsppl 352 1035 0 1006 4 1 3 4 0 8 0 rwobjpl 24 25650 0 21277 27 0 27 27 0 8 0 pdppl 4096 2078 0 2012 96 28 68 80 0 8 2 pvpl 32 497086 0 487227 141 0 141 141 0 265 58 pmappl 216 1035 0 1006 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 434 0 73 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800030df42a8,ffffffffffffffff,0,c0000d06,fffffd8063b98e90,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800030df42a8,ffffffffffffffff,0,c0000d06,fffffd8063b98e90,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8063b98e90,4,40000d06,0,ffff800030df42a8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8063b98e90,4,40000d06,0,ffff800030df42a8) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff800030df42a8,ffff800037632f70,ffff800037632ec0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037632f70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x30e58269270, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800030df42a8,ffffffffffffffff,0,c0000d06,fffffd8063b98e90,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800030df42a8,ffffffffffffffff,0,c0000d06,fffffd8063b98e90,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8063b98e90,4,40000d06,0,ffff800030df42a8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8063b98e90,4,40000d06,0,ffff800030df42a8) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff800030df42a8,ffff800037632f70,ffff800037632ec0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037632f70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x30e58269270, count: -5