uvm_fault(0xfffffd806c2a6448, 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 *144750 62652 0 0 0x4000000 0 syz-executor ktrops(ffff80003a537210,ffffffffffffffff,0,a0c7df9b,fffffd80692b1398,fffffd8007bfb9c0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003a537210,ffffffffffffffff,0,a0c7df9b,fffffd80692b1398,fffffd8007bfb9c0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80692b1398,4,20c7df9b,0,ffff80003a537210) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80692b1398,4,20c7df9b,0,ffff80003a537210) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003a537210,ffff80003c95fc30,ffff80003c95fb80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c95fc30) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c95fc30) at syscall+0x97e sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a420dda0d0, 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(0xfffffd806c2a6448, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003a537210,ffffffffffffffff,0,a0c7df9b,fffffd80692b1398,fffffd8007bfb9c0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003a537210,ffffffffffffffff,0,a0c7df9b,fffffd80692b1398,fffffd8007bfb9c0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80692b1398,4,20c7df9b,0,ffff80003a537210) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80692b1398,4,20c7df9b,0,ffff80003a537210) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003a537210,ffff80003c95fc30,ffff80003c95fb80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c95fc30) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c95fc30) at syscall+0x97e sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a420dda0d0, count: -5 ddb> show registers rdi 0xffff80003a537210 rsi 0xffffffffffffffff rbp 0xffff80003c95f950 rbx 0xfffffd8007bfb9c0 rdx 0 rcx 0xa0c7df9b rax 0xffff80003a537210 r8 0xfffffd80692b1398 r9 0xfffffd8007bfb9c0 r10 0x6d827615bf7ecbf0 r11 0x4dab3acbd47a05c5 r12 0xffff80003a537210 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9b rip 0xffffffff81c5bf38 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c95f8d0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=144750 pid=62652 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=0xffff80003a532a68,0xffff80003a537740 process=0xffff8000ffff44a0 user=0xffff80003c95a000, vmspace=0xfffffd806c2a6448 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 99367 522411 17070 0 2 0xc90 syz-executor 99367 53606 17070 0 3 0x4000090 fsleep syz-executor 27969 16302 90619 0 2 0 syz-executor 27969 209732 90619 0 3 0x4000080 ttyin syz-executor 27969 220905 90619 0 3 0x4000080 fsleep syz-executor 63430 335975 33195 0 2 0x2 ndp 33195 232254 93132 0 3 0x10008a sigsusp sh 98428 505199 45808 0 3 0x80 nanoslp syz-executor 98428 297386 45808 0 3 0x4000080 ttyout syz-executor 98428 417247 45808 0 3 0x4000080 fsleep syz-executor 93132 213439 35625 0 3 0x82 wait syz-executor 62652 423599 46138 0 2 0 syz-executor *62652 144750 46138 0 7 0x4000000 syz-executor 62652 247440 46138 0 3 0x4000080 fsleep syz-executor 33861 334585 0 0 3 0x14200 acct acct 85350 76414 0 0 3 0x14200 bored sosplice 45808 435840 35625 0 2 0xc82 syz-executor 17070 286818 35625 0 3 0x82 nanoslp syz-executor 24714 232718 35625 0 2 0x2 syz-executor 90619 516789 35625 0 3 0x82 nanoslp syz-executor 46138 231853 35625 0 3 0x82 nanoslp syz-executor 84505 165044 35625 0 2 0x2 syz-executor 12674 243759 35625 0 2 0x2 syz-executor 35625 48660 57909 0 3 0x82 kqread syz-executor 57909 342876 10858 0 3 0x10008a sigsusp ksh 10858 47700 81730 0 3 0x98 kqread sshd-session 81730 167434 75750 0 3 0x92 kqread sshd-session 50274 362177 1 0 3 0x100083 ttyin getty 75750 32666 1 0 3 0x88 kqread sshd 81818 163253 63455 73 3 0x1100090 kqread syslogd 63455 242659 1 0 3 0x100082 sbwait syslogd 53860 44269 1 0 3 0x100080 kqread resolvd 84219 366509 25555 77 3 0x100092 kqread dhcpleased 37228 89733 25555 77 3 0x100092 kqread dhcpleased 25555 465429 1 0 3 0x80 kqread dhcpleased 44074 250044 0 0 3 0x14200 bored smr 2857 190661 0 0 2 0x14200 zerothread 93185 72466 0 0 3 0x14200 aiodoned aiodoned 79045 184637 0 0 3 0x14200 syncer update 2027 9963 0 0 3 0x14200 cleaner cleaner 92349 209653 0 0 3 0x14200 reaper reaper 32031 407335 0 0 3 0x14200 pgdaemon pagedaemon 17386 79170 0 0 3 0x14200 bored viomb 8650 212442 0 0 3 0x40014200 acpi0 acpi0 7143 229619 0 0 3 0x14200 bored softnet3 29467 324567 0 0 3 0x14200 bored softnet2 36879 327160 0 0 3 0x14200 bored softnet1 59189 421383 0 0 3 0x14200 bored softnet0 51108 38497 0 0 3 0x14200 bored systqmp 62485 197056 0 0 3 0x14200 bored systq 65639 476145 0 0 2 0x40014200 softclock 54492 345912 0 0 3 0x40014200 idle0 1 195097 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 10175 11038K 11242K 166960K 11401 0 pcb 18 12K 12K 166960K 37 0 rtable 226 6K 6K 166960K 382 0 pf 30 12K 16K 166960K 48 0 ifaddr 42 7K 7K 166960K 50 0 ifgroup 50 2K 2K 166960K 56 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 17K 166960K 34 0 ioctlops 0 0K 4K 166960K 107 0 iov 0 0K 14K 166960K 40 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1345 85K 85K 166960K 1421 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 228 0 sigio 0 0K 0K 166960K 2 0 proc 60 59K 91K 166960K 514 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 98 7K 7K 166960K 110 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 368 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 200 143K 151K 166960K 3485 0 UVM aobj 6 2K 2K 166960K 6 0 pinsyscall 37 74K 96K 166960K 1285 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 7 0 NDP 13 0K 2K 166960K 31 0 temp 35 8674K 8740K 166960K 8511 0 kqueue 13 20K 26K 166960K 35 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 41 0 38 1 0 1 1 0 8 0 rtentry 136 124 0 18 4 0 4 4 0 8 0 unpcb 144 80 0 64 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 31 0 27 1 0 1 1 0 8 0 arp 88 20 0 4 1 0 1 1 0 8 0 inpcb 328 152 0 144 4 0 4 4 0 8 3 nd6 104 27 0 3 1 0 1 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 1 0 1 1 0 1 1 0 8 1 pfrule 1344 4 0 4 1 0 1 1 0 8 1 rttmr 136 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 529 0 79 31 0 31 31 0 8 0 art_table 32 530 0 79 4 0 4 4 0 8 0 art_node 16 123 0 27 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 5 0 1 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1679 0 172 95 0 95 95 0 8 0 ffsino 248 1679 0 172 95 0 95 95 0 8 0 nchpl 144 1986 0 302 63 0 63 63 0 8 0 uvmvnodes 80 1810 0 0 37 0 37 37 0 8 0 vnodes 216 1810 0 0 101 0 101 101 0 8 0 namei 1024 6149 0 6147 2 0 2 2 0 8 1 kstatmem 264 26 0 4 2 0 2 2 0 8 0 scxspl 216 6266 0 6266 3 0 3 3 1 8 3 plimitpl 152 36 0 18 1 0 1 1 0 8 0 sigapl 424 508 0 462 6 0 6 6 0 8 0 knotepl 120 6437 0 6390 17 6 11 17 0 8 8 kqueuepl 184 43 0 34 1 0 1 1 0 8 0 pipepl 296 113 0 86 3 0 3 3 0 8 0 fdescpl 440 490 0 462 5 0 5 5 0 8 1 filepl 120 1903 0 1686 8 0 8 8 0 8 0 lockfpl 104 38 0 36 1 0 1 1 0 8 0 lockfspl 48 20 0 18 1 0 1 1 0 8 0 sessionpl 144 22 0 14 1 0 1 1 0 8 0 pgrppl 48 32 0 16 1 0 1 1 0 8 0 ucredpl 104 161 0 149 1 0 1 1 0 8 0 zombiepl 144 462 0 462 1 0 1 1 0 8 1 processpl 1160 508 0 462 4 0 4 4 0 8 0 procpl 656 650 0 597 6 0 6 6 0 8 0 sockpl 528 277 0 250 5 0 5 5 0 8 3 mcl64k 65536 4 0 4 1 0 1 1 0 8 1 mcl16k 16384 6 0 6 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2522 0 2468 14 0 14 14 0 8 6 mcl2k 2048 310 0 307 1 0 1 1 0 8 0 mtagpl 96 9 0 6 1 0 1 1 0 8 0 mbufpl 256 4769 0 4607 11 0 11 11 0 8 0 bufpl 280 2401 0 116 164 0 164 164 0 8 0 anonpl 24 76926 0 73954 20 0 20 20 0 187 0 amapchunkpl 152 10043 0 9655 34 0 34 34 0 158 15 amappl16 200 856 0 836 4 0 4 4 0 8 2 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 105 0 95 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 0 1 1 0 8 1 amappl12 168 1113 0 1085 2 0 2 2 0 8 0 amappl11 160 58 0 48 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 0 1 1 0 8 1 amappl9 144 252 0 252 1 0 1 1 0 8 1 amappl8 136 19 0 17 1 0 1 1 0 8 0 amappl7 128 97 0 86 1 0 1 1 0 8 0 amappl6 120 178 0 174 1 0 1 1 0 8 0 amappl5 112 112 0 106 1 0 1 1 0 8 0 amappl4 104 286 0 269 1 0 1 1 0 8 0 amappl3 96 1719 0 1632 3 0 3 3 0 8 0 amappl2 88 618 0 560 2 0 2 2 0 8 0 amappl1 80 8245 0 7687 13 0 13 13 0 8 1 amappl 88 2816 0 2681 5 0 5 5 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 490 0 462 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 490 0 462 1 0 1 1 0 8 0 vmmpekpl 168 5511 0 5473 2 0 2 2 0 8 0 vmmpepl 168 36021 0 34309 83 0 83 83 0 357 3 vmsppl 360 489 0 462 4 0 4 4 0 8 1 rwobjpl 32 13602 0 10953 22 0 22 22 0 8 0 pdppl 4096 987 0 924 97 28 69 81 0 8 6 pvpl 32 209627 0 201877 79 0 79 79 0 265 1 pmappl 216 489 0 462 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 263 0 28 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003a537210,ffffffffffffffff,0,a0c7df9b,fffffd80692b1398,fffffd8007bfb9c0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003a537210,ffffffffffffffff,0,a0c7df9b,fffffd80692b1398,fffffd8007bfb9c0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80692b1398,4,20c7df9b,0,ffff80003a537210) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80692b1398,4,20c7df9b,0,ffff80003a537210) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003a537210,ffff80003c95fc30,ffff80003c95fb80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c95fc30) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c95fc30) at syscall+0x97e sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a420dda0d0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003a537210,ffffffffffffffff,0,a0c7df9b,fffffd80692b1398,fffffd8007bfb9c0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003a537210,ffffffffffffffff,0,a0c7df9b,fffffd80692b1398,fffffd8007bfb9c0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80692b1398,4,20c7df9b,0,ffff80003a537210) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80692b1398,4,20c7df9b,0,ffff80003a537210) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003a537210,ffff80003c95fc30,ffff80003c95fb80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c95fc30) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c95fc30) at syscall+0x97e sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a420dda0d0, count: -5