uvm_fault(0xfffffd806b6d9cc0, 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 *291836 28679 0 0 0x4000000 0 syz-executor ktrops(ffff80002a8e8538,ffffffffffffffff,0,c0000530,fffffd806b34b200,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8e8538,ffffffffffffffff,0,c0000530,fffffd806b34b200,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b34b200,4,40000530,0,ffff80002a8e8538) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b34b200,4,40000530,0,ffff80002a8e8538) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8e8538,ffff80003c940f60,ffff80003c940eb0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c940f60) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x522d964df60, 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(0xfffffd806b6d9cc0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a8e8538,ffffffffffffffff,0,c0000530,fffffd806b34b200,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8e8538,ffffffffffffffff,0,c0000530,fffffd806b34b200,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b34b200,4,40000530,0,ffff80002a8e8538) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b34b200,4,40000530,0,ffff80002a8e8538) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8e8538,ffff80003c940f60,ffff80003c940eb0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c940f60) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x522d964df60, count: -5 ddb> show registers rdi 0xffff80002a8e8538 rsi 0xffffffffffffffff rbp 0xffff80003c940c80 rbx 0xfffffd807f7d78f0 rdx 0 rcx 0xc0000530 rax 0xffff80002a8e8538 r8 0xfffffd806b34b200 r9 0xfffffd807f7d78f0 r10 0xc4859a5d81a6df09 r11 0xbcb20f884c126595 r12 0xffff80002a8e8538 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xc0000530 rip 0xffffffff82b2fac8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c940c00 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=291836 pid=28679 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002cd0d4b0,0xffff80002a8e94a8 process=0xffff8000ffff8470 user=0xffff80003c93c000, vmspace=0xfffffd806b6d9cc0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 32639 450468 44526 0 3 0x2 clonelk ifconfig 44526 164244 79826 0 3 0x10008a sigsusp sh 79826 449403 14603 0 3 0x82 wait syz-executor 63790 314444 10860 0 2 0 syz-executor 63790 138904 10860 0 3 0x4000080 fsleep syz-executor 90384 341452 52341 0 2 0 syz-executor 90384 123055 52341 0 3 0x4000080 netcon syz-executor 90384 92484 52341 0 2 0x4000000 syz-executor 28679 435880 55709 0 2 0 syz-executor 28679 348274 55709 0 3 0x4000080 fsleep syz-executor *28679 291836 55709 0 7 0x4000000 syz-executor 28679 393397 55709 0 3 0x4000080 fsleep syz-executor 64023 72644 17910 0 3 0x80 nanoslp syz-executor 64023 22238 17910 0 3 0x4000080 fsleep syz-executor 64023 390887 17910 0 2 0x4000000 syz-executor 16776 263388 0 0 3 0x14280 nfsidl nfsio 26315 491751 0 0 3 0x14280 nfsidl nfsio 93009 351429 0 0 3 0x14280 nfsidl nfsio 7235 322105 0 0 3 0x14280 nfsidl nfsio 21274 49277 0 0 3 0x14280 nfsidl nfsio 15332 330764 0 0 3 0x14280 nfsidl nfsio 40302 96388 0 0 3 0x14280 nfsidl nfsio 30382 518305 0 0 3 0x14280 nfsidl nfsio 97977 236316 0 0 3 0x14280 nfsidl nfsio 95645 343815 0 0 3 0x14280 nfsidl nfsio 56200 41912 0 0 3 0x14280 nfsidl nfsio 527 10521 0 0 3 0x14280 nfsidl nfsio 5885 145232 0 0 3 0x14280 nfsidl nfsio 63097 510100 0 0 3 0x14280 nfsidl nfsio 49561 271962 0 0 3 0x14280 nfsidl nfsio 91333 386524 0 0 3 0x14280 nfsidl nfsio 9883 288747 0 0 3 0x14280 nfsidl nfsio 64365 300931 0 0 3 0x14280 nfsidl nfsio 8382 234349 0 0 3 0x14280 nfsidl nfsio 64302 520591 0 0 3 0x14280 nfsidl nfsio 91841 483194 1 0 3 0x100083 ttyopn getty 72975 324894 0 0 3 0x14200 acct acct 54231 72451 0 0 3 0x14200 bored sosplice 52341 468058 14603 0 2 0x482 syz-executor 99418 466874 14603 0 2 0x2 syz-executor 10860 126531 14603 0 2 0x482 syz-executor 72312 60172 14603 0 2 0x2 syz-executor 17910 64853 14603 0 3 0x82 nanoslp syz-executor 55709 250794 14603 0 2 0x482 syz-executor 14603 339273 18468 0 3 0x82 wait syz-executor 18468 163726 99971 0 3 0x10008a sigsusp ksh 99971 34519 74904 0 3 0x98 kqread sshd-session 74904 65340 13848 0 3 0x92 kqread sshd-session 13848 27683 1 0 3 0x88 kqread sshd 19242 273233 57173 73 3 0x1100090 kqread syslogd 57173 49561 1 0 3 0x100082 sbwait syslogd 49890 364625 1 0 3 0x100080 kqread resolvd 49492 282172 24353 77 3 0x100092 kqread dhcpleased 12133 80749 24353 77 3 0x100092 kqread dhcpleased 24353 59870 1 0 3 0x80 kqread dhcpleased 41487 243026 0 0 3 0x14200 bored smr 51794 495841 0 0 2 0x14200 zerothread 39709 382466 0 0 3 0x14200 aiodoned aiodoned 39766 181075 0 0 3 0x14200 syncer update 89472 42472 0 0 3 0x14200 cleaner cleaner 91647 354466 0 0 3 0x14200 reaper reaper 34660 479295 0 0 3 0x14200 pgdaemon pagedaemon 24008 115721 0 0 3 0x14200 bored viomb 21605 452684 0 0 3 0x40014200 acpi0 acpi0 43841 126405 0 0 3 0x14200 bored softnet3 81567 66287 0 0 3 0x14200 bored softnet2 6102 31118 0 0 3 0x14200 bored softnet1 7778 175221 0 0 3 0x14200 bored softnet0 45395 437370 0 0 3 0x14200 bored systqmp 58124 414417 0 0 3 0x14200 bored systq 995 358926 0 0 3 0x40014200 tmoslp softclock 4971 496900 0 0 3 0x40014200 idle0 1 453224 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 10171 11111K 11400K 166960K 12134 0 pcb 17 14K 15K 166960K 93 0 rtable 140 6K 8K 166960K 981 0 pf 33 13K 14K 166960K 95 0 ifaddr 29 4K 7K 166960K 132 0 ifgroup 46 2K 2K 166960K 146 0 sysctl 4 1K 1K 166960K 6 0 counters 29 17K 17K 166960K 56 0 ioctlops 0 0K 4K 166960K 103 0 iov 0 0K 16K 166960K 60 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1403 88K 89K 166960K 2050 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 10 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 21 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 85K 166960K 845 0 sigio 0 0K 0K 166960K 83 0 proc 67 67K 100K 166960K 1074 0 subproc 72 4K 4K 166960K 252 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 55 0 in_multi 55 4K 7K 166960K 325 0 ether_multi 1 0K 0K 166960K 1 0 mrt 2 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 680 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 206 151K 166K 166960K 7893 0 UVM aobj 82 3K 3K 166960K 87 0 pinsyscall 37 74K 92K 166960K 2369 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 12 0K 2K 166960K 90 0 temp 45 8669K 8735K 166960K 12956 0 kqueue 13 20K 26K 166960K 74 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 99 0 96 1 0 1 1 0 8 0 rtentry 136 329 0 272 4 0 4 4 0 8 0 unpcb 144 481 0 464 7 1 6 6 0 8 5 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 182 0 177 7 6 1 7 0 8 0 arp 88 58 0 47 1 0 1 1 0 8 0 inpcb 344 789 0 779 8 6 2 7 0 8 1 nd6 104 84 0 72 1 0 1 1 0 8 0 pkpcb 40 3 0 3 2 1 1 1 0 8 1 kcovpl 48 28 0 20 1 0 1 1 0 8 0 ppxss 1072 5 0 5 1 1 0 1 0 8 0 pfstscr 40 3 0 3 1 1 0 1 0 8 0 pfstitem 24 1 0 0 1 0 1 1 0 8 0 pfstkey 128 6 0 5 1 0 1 1 0 8 0 pfstate 344 4 0 3 1 0 1 1 0 8 0 pfrule 1344 3 0 2 1 0 1 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1375 0 1136 29 8 21 29 0 8 2 art_table 32 1378 0 1136 4 0 4 4 0 8 0 art_node 16 328 0 277 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 5 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 17 0 7 1 0 1 1 0 8 0 shmpl 112 84 0 5 3 0 3 3 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2476 0 938 97 0 97 97 0 8 0 ffsino 248 2477 0 938 97 0 97 97 0 8 0 nchpl 144 3297 0 1560 65 0 65 65 0 8 0 uvmvnodes 80 2998 0 0 62 0 62 62 0 8 0 vnodes 216 2998 0 0 167 0 167 167 0 8 0 namei 1024 12707 0 12705 2 1 1 2 0 8 0 kstatmem 264 72 0 52 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 9779 0 9779 9 7 2 8 1 8 2 plimitpl 152 204 0 188 1 0 1 1 0 8 0 sigapl 424 1107 0 1041 8 0 8 8 0 8 0 futexpl 64 6719 0 6715 1 0 1 1 0 8 0 knotepl 120 16822 0 16775 10 8 2 10 0 8 0 kqueuepl 184 183 0 174 4 3 1 4 0 8 0 pipepl 296 195 0 168 3 0 3 3 0 8 0 fdescpl 440 1067 0 1039 4 0 4 4 0 8 0 filepl 120 5604 0 5387 16 5 11 12 0 8 4 lockfpl 104 140 0 137 1 0 1 1 0 8 0 lockfspl 48 53 0 50 1 0 1 1 0 8 0 sessionpl 144 42 0 34 1 0 1 1 0 8 0 pgrppl 48 75 0 59 1 0 1 1 0 8 0 ucredpl 104 920 0 907 1 0 1 1 0 8 0 zombiepl 144 1092 0 1091 2 1 1 1 0 8 0 processpl 1112 1107 0 1041 5 0 5 5 0 8 0 procpl 656 1784 0 1710 8 0 8 8 0 8 1 sosppl 168 4 0 4 1 1 0 1 0 8 0 sockpl 528 1386 0 1356 17 7 10 12 0 8 8 mcl64k 65536 12 0 12 2 1 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 6 0 6 1 1 0 1 0 8 0 mcl4k 4096 2984 0 2934 13 5 8 12 0 8 1 mcl2k 2048 945 0 942 2 0 2 2 0 8 1 mtagpl 96 84 0 70 2 0 2 2 0 8 1 mbufpl 256 10008 0 9870 21 6 15 21 0 8 1 bufpl 280 2997 0 119 206 0 206 206 0 8 0 anonpl 24 155185 0 151931 32 11 21 31 0 187 0 amapchunkpl 152 30781 0 30369 41 15 26 32 0 158 7 amappl16 200 2580 0 2536 6 3 3 5 0 8 0 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 141 0 131 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 1978 0 1950 3 1 2 3 0 8 0 amappl11 160 42 0 32 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 240 0 240 1 1 0 1 0 8 0 amappl8 136 33 0 32 1 0 1 1 0 8 0 amappl7 128 138 0 128 1 0 1 1 0 8 0 amappl6 120 363 0 357 1 0 1 1 0 8 0 amappl5 112 201 0 193 1 0 1 1 0 8 0 amappl4 104 336 0 319 1 0 1 1 0 8 0 amappl3 96 4655 0 4560 4 1 3 4 0 8 0 amappl2 88 885 0 824 2 0 2 2 0 8 0 amappl1 80 12101 0 11559 13 1 12 13 0 8 0 amappl 88 6850 0 6709 4 0 4 4 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 7 0 7 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 86 0 5 2 0 2 2 0 8 0 uaddrrnd 24 1067 0 1039 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1067 0 1039 1 0 1 1 0 8 0 vmmpekpl 168 9424 0 9377 3 0 3 3 0 8 0 vmmpepl 168 72119 0 70351 89 4 85 86 0 357 1 vmsppl 360 1066 0 1039 4 1 3 4 0 8 0 rwobjpl 32 24041 0 20100 32 0 32 32 0 8 0 pdppl 4096 2140 0 2078 114 46 68 76 0 8 6 pvpl 32 429188 0 421145 100 23 77 97 0 265 2 pmappl 216 1066 0 1039 2 0 2 2 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 299 0 77 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a8e8538,ffffffffffffffff,0,c0000530,fffffd806b34b200,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8e8538,ffffffffffffffff,0,c0000530,fffffd806b34b200,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b34b200,4,40000530,0,ffff80002a8e8538) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b34b200,4,40000530,0,ffff80002a8e8538) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8e8538,ffff80003c940f60,ffff80003c940eb0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c940f60) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x522d964df60, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a8e8538,ffffffffffffffff,0,c0000530,fffffd806b34b200,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8e8538,ffffffffffffffff,0,c0000530,fffffd806b34b200,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b34b200,4,40000530,0,ffff80002a8e8538) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b34b200,4,40000530,0,ffff80002a8e8538) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8e8538,ffff80003c940f60,ffff80003c940eb0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c940f60) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x522d964df60, count: -5