uvm_fault(0xfffffd806c0b6448, 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 *283860 38337 0 0 0x4000000 0 syz-executor ktrops(ffff80002a813bf8,ffffffffffffffff,0,80000112,fffffd806b6df878,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a813bf8,ffffffffffffffff,0,80000112,fffffd806b6df878,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b6df878,4,112,0,ffff80002a813bf8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b6df878,4,112,0,ffff80002a813bf8) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a813bf8,ffff80003c997e40,ffff80003c997d90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c997e40) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc09af30e40, 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(0xfffffd806c0b6448, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a813bf8,ffffffffffffffff,0,80000112,fffffd806b6df878,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a813bf8,ffffffffffffffff,0,80000112,fffffd806b6df878,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b6df878,4,112,0,ffff80002a813bf8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b6df878,4,112,0,ffff80002a813bf8) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a813bf8,ffff80003c997e40,ffff80003c997d90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c997e40) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc09af30e40, count: -5 ddb> show registers rdi 0xffff80002b506000 rsi 0x806 rbp 0xffff80003c997b60 rbx 0xfffffd807f7d7750 rdx 0xffff80002b506000 rcx 0x805 rax 0xffffffff814e7c53 ktrops+0x43 r8 0xfffffd806b6df878 r9 0xfffffd807f7d7750 r10 0xe3deffd5316737b8 r11 0x7a0ae370108d5a80 r12 0xffff80002a813bf8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000112 __kernel_virt_to_phys+0x112 rip 0xffffffff814e7c68 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c997ae0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=283860 pid=38337 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=51, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a8136e8,0xffffffff83915368 process=0xffff800035d25e48 user=0xffff80003c992000, vmspace=0xfffffd806c0b6448 estcpu=1, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 38337 483221 70012 0 2 0 syz-executor *38337 283860 70012 0 7 0x4000000 syz-executor 22217 195791 78665 0 2 0 syz-executor 22217 421036 78665 0 3 0x4000080 fsleep syz-executor 21101 417169 50174 60929 2 0x10 syz-executor 21101 327369 50174 60929 2 0x4000010 syz-executor 34990 12610 53944 0 2 0 syz-executor 34990 186152 53944 0 3 0x4000080 fsleep syz-executor 34990 390929 53944 0 2 0x4000000 syz-executor 76586 144099 53369 0 3 0x80 nanoslp syz-executor 76586 436398 53369 0 3 0x4000080 fifow syz-executor 76586 15295 53369 0 3 0x4000080 fsleep syz-executor 76586 161955 53369 0 3 0x4000080 lockf syz-executor 76586 96700 53369 0 3 0x4000080 fsleep syz-executor 31298 350130 66129 0 2 0x2 syz-executor 74303 156042 66129 0 2 0x2 syz-executor 21726 43317 66129 0 3 0x82 nanoslp syz-executor 53369 308443 66129 0 3 0x82 nanoslp syz-executor 78665 148723 66129 0 3 0x82 nanoslp syz-executor 70012 437926 66129 0 3 0x82 nanoslp syz-executor 53944 121676 66129 0 3 0x82 nanoslp syz-executor 50174 310006 66129 0 3 0x82 nanoslp syz-executor 66129 514456 81824 0 3 0x82 kqread syz-executor 81824 455485 17176 0 3 0x10008a sigsusp ksh 17176 306756 83312 0 3 0x98 kqread sshd-session 83312 444198 49871 0 3 0x92 kqread sshd-session 68437 452329 1 0 3 0x100083 ttyin getty 49871 519376 1 0 3 0x88 kqread sshd 22205 93460 74614 73 3 0x1100090 kqread syslogd 74614 505794 1 0 3 0x100082 sbwait syslogd 29419 438383 1 0 3 0x100080 kqread resolvd 81413 49552 61775 77 3 0x100092 kqread dhcpleased 89102 298215 61775 77 3 0x100092 kqread dhcpleased 61775 199097 1 0 3 0x80 kqread dhcpleased 54402 213608 0 0 3 0x14200 bored smr 7461 29232 0 0 2 0x14200 zerothread 64999 480609 0 0 3 0x14200 aiodoned aiodoned 75273 458384 0 0 3 0x14200 syncer update 78771 267973 0 0 3 0x14200 cleaner cleaner 77659 128343 0 0 3 0x14200 reaper reaper 23718 346250 0 0 3 0x14200 pgdaemon pagedaemon 58891 323713 0 0 3 0x14200 bored viomb 91180 139585 0 0 3 0x40014200 acpi0 acpi0 44904 303494 0 0 3 0x14200 bored softnet3 33973 313577 0 0 3 0x14200 bored softnet2 38169 447975 0 0 3 0x14200 bored softnet1 17379 442774 0 0 3 0x14200 bored softnet0 6993 95064 0 0 3 0x14200 bored systqmp 21137 109829 0 0 3 0x14200 bored systq 84266 436064 0 0 3 0x40014200 tmoslp softclock 82613 450831 0 0 3 0x40014200 idle0 1 462767 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 10170 11048K 11195K 166960K 11282 0 pcb 17 12K 12K 166960K 24 0 rtable 237 8K 9K 166960K 362 0 pf 30 12K 12K 166960K 30 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 1K 166960K 1 0 counters 30 17K 17K 166960K 30 0 ioctlops 0 0K 2K 166960K 29 0 iov 0 0K 16K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1338 84K 84K 166960K 1363 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 97K 166960K 159 0 sigio 0 0K 0K 166960K 1 0 proc 59 59K 116K 166960K 477 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 4 0 in_multi 99 7K 7K 166960K 101 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 43 201K 201K 166960K 43 0 exec 0 0K 1K 166960K 346 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 205 71K 72K 166960K 2763 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 37 74K 96K 166960K 1181 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 11 0K 1K 166960K 27 0 temp 35 8622K 8686K 166960K 3738 0 kqueue 13 20K 22K 166960K 24 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 37 0 34 1 0 1 1 0 8 0 rtentry 112 111 0 1 4 0 4 4 0 8 0 unpcb 144 176 0 159 6 0 6 6 0 8 5 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 11 0 7 1 0 1 1 0 8 0 arp 88 18 0 0 1 0 1 1 0 8 0 inpcb 344 78 0 71 2 0 2 2 0 8 1 nd6 104 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 452 0 0 29 0 29 29 0 8 0 art_table 32 453 0 0 4 0 4 4 0 8 0 art_node 16 110 0 10 1 0 1 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1582 0 73 95 0 95 95 0 8 0 ffsino 248 1582 0 73 95 0 95 95 0 8 0 nchpl 144 1802 0 118 63 0 63 63 0 8 0 uvmvnodes 80 1672 0 0 35 0 35 35 0 8 0 vnodes 216 1672 0 0 93 0 93 93 0 8 0 namei 1024 5424 0 5420 2 0 2 2 0 8 1 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 5745 0 5745 2 0 2 2 1 8 2 plimitpl 152 27 0 11 1 0 1 1 0 8 0 sigapl 424 436 0 392 7 0 7 7 0 8 1 futexpl 64 354 0 350 1 0 1 1 0 8 0 knotepl 120 3338 0 3291 2 0 2 2 0 8 0 kqueuepl 184 21 0 12 1 0 1 1 0 8 0 pipepl 296 104 0 76 3 0 3 3 0 8 0 fdescpl 440 420 0 392 5 0 5 5 0 8 1 filepl 120 1677 0 1458 13 0 13 13 0 8 6 lockfpl 104 19 0 15 1 0 1 1 0 8 0 lockfspl 48 9 0 6 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 80 0 68 1 0 1 1 0 8 0 zombiepl 144 393 0 392 1 0 1 1 0 8 0 processpl 1104 436 0 392 4 0 4 4 0 8 0 procpl 648 482 0 429 5 0 5 5 0 8 0 sockpl 528 291 0 264 11 1 10 11 0 8 8 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 2434 0 2379 15 0 15 15 0 8 7 mcl2k 2048 142 0 142 1 0 1 1 0 8 1 mtagpl 96 7 0 6 1 0 1 1 0 8 0 mbufpl 256 4460 0 4302 22 1 21 22 0 8 8 bufpl 280 2269 0 124 154 0 154 154 0 8 0 anonpl 24 87372 0 84310 22 0 22 22 0 187 2 amapchunkpl 152 8314 0 7858 21 0 21 21 0 158 0 amappl16 200 1468 0 1447 5 0 5 5 0 8 3 amappl15 192 2 0 2 1 0 1 1 0 8 1 amappl14 184 101 0 91 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 0 1 1 0 8 1 amappl12 168 1027 0 999 3 0 3 3 0 8 1 amappl11 160 43 0 33 1 0 1 1 0 8 0 amappl10 152 4 0 3 1 0 1 1 0 8 0 amappl9 144 251 0 251 1 0 1 1 0 8 1 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 97 0 87 1 0 1 1 0 8 0 amappl6 120 174 0 171 1 0 1 1 0 8 0 amappl5 112 113 0 106 1 0 1 1 0 8 0 amappl4 104 276 0 262 1 0 1 1 0 8 0 amappl3 96 1334 0 1230 3 0 3 3 0 8 0 amappl2 88 604 0 551 2 0 2 2 0 8 0 amappl1 80 7471 0 6957 13 0 13 13 0 8 1 amappl 88 2429 0 2271 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 420 0 392 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 420 0 392 1 0 1 1 0 8 0 vmmpekpl 168 5026 0 4990 2 0 2 2 0 8 0 vmmpepl 168 31539 0 29879 78 0 78 78 0 357 0 vmsppl 360 419 0 392 4 0 4 4 0 8 1 rwobjpl 32 13465 0 10970 21 0 21 21 0 8 0 pdppl 4096 847 0 784 97 30 67 83 0 8 4 pvpl 32 201421 0 192389 76 0 76 76 0 265 0 pmappl 216 419 0 392 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 271 0 31 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a813bf8,ffffffffffffffff,0,80000112,fffffd806b6df878,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a813bf8,ffffffffffffffff,0,80000112,fffffd806b6df878,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b6df878,4,112,0,ffff80002a813bf8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b6df878,4,112,0,ffff80002a813bf8) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a813bf8,ffff80003c997e40,ffff80003c997d90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c997e40) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc09af30e40, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a813bf8,ffffffffffffffff,0,80000112,fffffd806b6df878,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a813bf8,ffffffffffffffff,0,80000112,fffffd806b6df878,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b6df878,4,112,0,ffff80002a813bf8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b6df878,4,112,0,ffff80002a813bf8) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a813bf8,ffff80003c997e40,ffff80003c997d90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c997e40) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc09af30e40, count: -5