uvm_fault(0xfffffd806c960b98, 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 *321448 74961 0 0 0x4000000 0 syz-executor ktrops(ffff8000314b02b0,ffffffffffffffff,0,a0c7df9f,fffffd806caa25f0,fffffd8007ffd750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff8000314b02b0,ffffffffffffffff,0,a0c7df9f,fffffd806caa25f0,fffffd8007ffd750) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd806caa25f0,4,20c7df9f,0,ffff8000314b02b0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd806caa25f0,4,20c7df9f,0,ffff8000314b02b0) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff8000314b02b0,ffff80003a4d4fb0,ffff80003a4d4f00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003a4d4fb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a4d4fb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9a6020d29b0, 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(0xfffffd806c960b98, 0xf, 0, 1) -> e ddb> trace ktrops(ffff8000314b02b0,ffffffffffffffff,0,a0c7df9f,fffffd806caa25f0,fffffd8007ffd750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff8000314b02b0,ffffffffffffffff,0,a0c7df9f,fffffd806caa25f0,fffffd8007ffd750) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd806caa25f0,4,20c7df9f,0,ffff8000314b02b0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd806caa25f0,4,20c7df9f,0,ffff8000314b02b0) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff8000314b02b0,ffff80003a4d4fb0,ffff80003a4d4f00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003a4d4fb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a4d4fb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9a6020d29b0, count: -5 ddb> show registers rdi 0xffff8000384ca000 rsi 0x6bb rbp 0xffff80003a4d4cd0 rbx 0xfffffd8007ffd750 rdx 0xffff8000384ca000 rcx 0x6ba rax 0xffffffff830a3213 ktrops+0x43 r8 0xfffffd806caa25f0 r9 0xfffffd8007ffd750 r10 0x56e1c49118e3c937 r11 0xc9228888a6b8c043 r12 0xffff8000314b02b0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff830a3228 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003a4d4c50 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=321448 pid=74961 tcnt=3 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=0xffff8000314b1ca0,0xffff80003c8fb4f0 process=0xffff8000ffff8918 user=0xffff80003a4d0000, vmspace=0xfffffd806c960b98 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 87498 92673 37393 0 2 0 syz-executor 87498 370235 37393 0 3 0x4000080 fsleep syz-executor 49734 403030 63213 0 2 0 syz-executor 49734 292600 63213 0 3 0x4000080 sbwait syz-executor 74961 486301 91586 0 2 0 syz-executor 74961 500743 91586 0 3 0x4000080 sbwait syz-executor *74961 321448 91586 0 7 0x4000000 syz-executor 7802 387610 30127 0 2 0 syz-executor 7802 187862 30127 0 2 0x4000000 syz-executor 3265 305240 11795 0 3 0x80 nanoslp syz-executor 3265 164871 11795 0 3 0x4000080 ttyretype syz-executor 91586 290028 18600 0 2 0xc82 syz-executor 37393 17308 18600 0 2 0xc82 syz-executor 30127 150553 18600 0 2 0xc82 syz-executor 11795 20105 18600 0 2 0xc82 syz-executor 63213 226890 18600 0 3 0x82 nanoslp syz-executor 7317 131964 18600 0 3 0x82 nanoslp syz-executor 76387 46210 18600 0 2 0x2 syz-executor 86754 445746 18600 0 2 0x2 syz-executor 18600 84269 61756 0 3 0x82 kqread syz-executor 61756 4517 91239 0 3 0x10008a sigsusp ksh 91239 44545 55794 0 3 0x98 kqread sshd-session 55794 228446 12438 0 3 0x92 kqread sshd-session 46485 13488 1 0 3 0x100083 ttyin getty 12438 217709 1 0 3 0x88 kqread sshd 75456 64 26933 73 3 0x1100090 kqread syslogd 26933 333340 1 0 3 0x100082 sbwait syslogd 66777 91587 1 0 3 0x100080 kqread resolvd 37074 286327 32189 77 3 0x100092 kqread dhcpleased 25326 321833 32189 77 3 0x100092 kqread dhcpleased 32189 45829 1 0 3 0x80 kqread dhcpleased 35862 11007 0 0 3 0x14200 bored smr 69824 294686 0 0 2 0x14200 zerothread 53336 253128 0 0 3 0x14200 aiodoned aiodoned 80740 83637 0 0 3 0x14200 syncer update 85405 181458 0 0 3 0x14200 cleaner cleaner 94698 432265 0 0 3 0x14200 reaper reaper 1927 143728 0 0 3 0x14200 pgdaemon pagedaemon 38214 368934 0 0 3 0x14200 bored viomb 38683 188690 0 0 3 0x40014200 acpi0 acpi0 68108 40776 0 0 3 0x14200 bored softnet0 84549 428456 0 0 3 0x14200 smrbar systqmp 66331 423644 0 0 3 0x14200 bored systq 46444 145136 0 0 3 0x40014200 tmoslp softclock 23132 478319 0 0 3 0x40014200 idle0 1 2098 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 11034 12103K 12119K 166960K 12129 0 pcb 17 12K 12K 166960K 21 0 rtable 215 5K 6K 166960K 353 0 pf 30 12K 13K 166960K 34 0 ifaddr 39 6K 7K 166960K 46 0 ifgroup 50 2K 2K 166960K 56 0 sysctl 1 1K 9K 166960K 6 0 counters 33 17K 17K 166960K 35 0 ioctlops 0 0K 2K 166960K 32 0 iov 0 0K 2K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1288 81K 81K 166960K 1371 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 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 97K 166960K 162 0 proc 57 58K 124K 166960K 498 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 6 0 in_multi 88 6K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 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 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 366 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 217 150K 159K 166960K 3118 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 37 74K 96K 166960K 1262 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 25 1K 2K 166960K 29 0 temp 35 9102K 9174K 166960K 3798 0 kqueue 14 22K 24K 166960K 29 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 40 0 37 1 0 1 1 0 8 0 rtentry 136 111 0 12 4 0 4 4 0 8 0 unpcb 144 47 0 28 1 0 1 1 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 10 0 6 1 0 1 1 0 8 0 arp 96 18 0 2 1 0 1 1 0 8 0 inpcb 328 75 0 63 2 0 2 2 0 8 0 nd6 112 24 0 3 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 453 0 0 29 0 29 29 0 8 0 art_table 40 454 0 0 5 0 5 5 0 8 0 art_node 32 111 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semapl 72 1 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1611 0 149 92 0 92 92 0 8 0 ffsino 256 1611 0 149 92 0 92 92 0 8 0 nchpl 144 1831 0 134 63 0 63 63 0 8 0 vnodes 216 1695 0 0 95 0 95 95 0 8 0 namei 1024 5561 0 5560 2 1 1 2 0 8 0 kstatmem 264 27 0 4 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 6089 0 6089 3 2 1 3 1 8 1 plimitpl 152 34 0 15 1 0 1 1 0 8 0 sigapl 424 457 0 416 6 1 5 6 0 8 0 knotepl 120 3802 0 3521 9 0 9 9 0 8 0 kqueuepl 184 28 0 17 1 0 1 1 0 8 0 pipepl 304 125 0 97 3 0 3 3 0 8 0 fdescpl 448 444 0 416 5 1 4 5 0 8 0 filepl 120 1560 0 1330 8 1 7 8 0 8 0 lockfpl 104 11 0 8 1 0 1 1 0 8 0 lockfspl 48 7 0 4 1 0 1 1 0 8 0 sessionpl 144 25 0 17 1 0 1 1 0 8 0 pgrppl 48 33 0 17 1 0 1 1 0 8 0 ucredpl 104 116 0 105 1 0 1 1 0 8 0 zombiepl 144 417 0 416 1 0 1 1 0 8 0 processpl 1152 457 0 416 4 0 4 4 0 8 0 procpl 664 502 0 455 5 0 5 5 0 8 0 sockpl 552 162 0 128 3 0 3 3 0 8 0 mcl8k 8192 4 0 4 1 1 0 1 0 8 0 mcl4k 4096 2528 0 2478 14 7 7 14 0 8 0 mcl2k 2048 129 0 128 3 2 1 3 0 8 0 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 4548 0 4370 18 2 16 18 0 8 0 bufpl 280 2258 0 102 154 0 154 154 0 8 0 anonpl 24 79663 0 76607 26 6 20 26 0 186 0 amapchunkpl 152 8388 0 7928 23 3 20 23 0 158 1 amappl16 200 1058 0 1040 5 3 2 4 0 8 0 amappl14 184 411 0 409 1 0 1 1 0 8 0 amappl13 176 119 0 109 1 0 1 1 0 8 0 amappl12 168 681 0 654 2 0 2 2 0 8 0 amappl11 160 24 0 24 1 1 0 1 0 8 0 amappl10 152 56 0 46 1 0 1 1 0 8 0 amappl9 144 272 0 272 1 1 0 1 0 8 0 amappl8 136 98 0 97 1 0 1 1 0 8 0 amappl7 128 142 0 131 1 0 1 1 0 8 0 amappl6 120 149 0 148 1 0 1 1 0 8 0 amappl5 112 92 0 85 1 0 1 1 0 8 0 amappl4 104 289 0 274 1 0 1 1 0 8 0 amappl3 96 1547 0 1441 3 0 3 3 0 8 0 amappl2 88 515 0 463 2 0 2 2 0 8 0 amappl1 80 10111 0 9564 13 0 13 13 0 8 0 amappl 88 2424 0 2269 4 0 4 4 0 92 0 uvmvnodes 80 98 0 0 2 0 2 2 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 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 128 253 0 253 1 1 0 1 0 8 0 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 444 0 416 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 444 0 416 1 0 1 1 0 8 0 vmmpekpl 168 5569 0 5534 2 0 2 2 0 8 0 vmmpepl 168 37132 0 35425 80 1 79 80 0 357 1 vmsppl 368 443 0 416 4 1 3 4 0 8 0 rwobjpl 40 13519 0 12594 11 1 10 11 0 8 0 pdppl 4096 894 0 832 98 32 66 82 0 8 4 pvpl 32 204838 0 196399 79 7 72 79 0 265 0 pmappl 216 443 0 416 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 368 0 51 11 1 10 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff8000314b02b0,ffffffffffffffff,0,a0c7df9f,fffffd806caa25f0,fffffd8007ffd750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff8000314b02b0,ffffffffffffffff,0,a0c7df9f,fffffd806caa25f0,fffffd8007ffd750) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd806caa25f0,4,20c7df9f,0,ffff8000314b02b0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd806caa25f0,4,20c7df9f,0,ffff8000314b02b0) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff8000314b02b0,ffff80003a4d4fb0,ffff80003a4d4f00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003a4d4fb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a4d4fb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9a6020d29b0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff8000314b02b0,ffffffffffffffff,0,a0c7df9f,fffffd806caa25f0,fffffd8007ffd750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff8000314b02b0,ffffffffffffffff,0,a0c7df9f,fffffd806caa25f0,fffffd8007ffd750) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd806caa25f0,4,20c7df9f,0,ffff8000314b02b0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd806caa25f0,4,20c7df9f,0,ffff8000314b02b0) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff8000314b02b0,ffff80003a4d4fb0,ffff80003a4d4f00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003a4d4fb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a4d4fb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9a6020d29b0, count: -5