uvm_fault(0xfffffd806ec13cf8, 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 *342595 63724 0 0 0x4000000 0 syz-executor ktrops(ffff80002a786538,ffffffffffffffff,0,a0c7df9f,fffffd806623ae90,fffffd8007bfb548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a786538,ffffffffffffffff,0,a0c7df9f,fffffd806623ae90,fffffd8007bfb548) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806623ae90,4,20c7df9f,0,ffff80002a786538) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806623ae90,4,20c7df9f,0,ffff80002a786538) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a786538,ffff80003c9ab070,ffff80003c9aafc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9ab070) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9ab070) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb8e17c4dd70, 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(0xfffffd806ec13cf8, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a786538,ffffffffffffffff,0,a0c7df9f,fffffd806623ae90,fffffd8007bfb548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a786538,ffffffffffffffff,0,a0c7df9f,fffffd806623ae90,fffffd8007bfb548) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806623ae90,4,20c7df9f,0,ffff80002a786538) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806623ae90,4,20c7df9f,0,ffff80002a786538) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a786538,ffff80003c9ab070,ffff80003c9aafc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9ab070) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9ab070) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb8e17c4dd70, count: -5 ddb> show registers rdi 0xffff80002a786538 rsi 0xffffffffffffffff rbp 0xffff80003c9aad90 rbx 0xfffffd8007bfb548 rdx 0 rcx 0xa0c7df9f rax 0xffff80002a786538 r8 0xfffffd806623ae90 r9 0xfffffd8007bfb548 r10 0xd714346c3bed1b8b r11 0xd4e905e64ff84faa r12 0xffff80002a786538 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff82ce8008 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9aad10 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=342595 pid=63724 tcnt=3 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=0xffff80002a7862a0,0xffff80002a7cca90 process=0xffff80003a92ba98 user=0xffff80003c9a6000, vmspace=0xfffffd806ec13cf8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 63724 447054 10357 0 2 0 syz-executor *63724 342595 10357 0 7 0x4000000 syz-executor 63724 326149 10357 0 3 0x4000080 fsleep syz-executor 49723 57085 97971 0 2 0 syz-executor 49723 76623 97971 0 3 0x4000080 ttyout syz-executor 68233 233538 50180 -1 2 0x4000010 syz-executor 68233 280499 50180 -1 3 0x4000090 fifor syz-executor 24472 508813 47897 0 2 0 syz-executor 24472 365962 47897 0 3 0x4000080 fsleep syz-executor 62025 493604 84257 0 2 0 syz-executor 62025 247206 84257 0 3 0x4000080 fsleep syz-executor 62025 69266 84257 0 3 0x4000080 fsleep syz-executor 62025 448620 84257 0 3 0x4000080 fsleep syz-executor 38106 379493 25761 0 3 0x80 nanoslp syz-executor 38106 30401 25761 0 3 0x4000080 kqsel syz-executor 38106 441594 25761 0 3 0x4000080 kqsel syz-executor 38106 461706 25761 0 3 0x4000080 fsleep syz-executor 43295 198924 96460 0 2 0xc80 syz-executor 43295 102432 96460 0 3 0x4000080 kqread syz-executor 43295 245291 96460 0 3 0x4000080 fsleep syz-executor 96460 92523 52573 0 3 0x82 nanoslp syz-executor 59809 100485 0 0 3 0x14200 bored sosplice 97971 345516 52573 0 3 0x82 nanoslp syz-executor 84257 6957 52573 0 2 0xc82 syz-executor 25761 453603 52573 0 2 0xc82 syz-executor 50180 398746 52573 0 2 0xc82 syz-executor 10357 317219 52573 0 3 0x82 nanoslp syz-executor 47897 353825 52573 0 3 0x82 nanoslp syz-executor 52716 209956 52573 0 2 0xc82 syz-executor 52573 416550 3436 0 3 0x82 kqread syz-executor 3436 460244 1 0 3 0x100002 biowait ksh 74215 366676 1 0 3 0 biowait sshd 86403 168591 29617 73 3 0x1100090 sbwait syslogd 29617 126106 1 0 2 0x100002 syslogd 46349 338491 1 0 3 0x100080 kqread resolvd 75870 456262 66690 77 3 0x100092 kqread dhcpleased 97920 388709 66690 77 3 0x100092 kqread dhcpleased 66690 258870 1 0 3 0x80 kqread dhcpleased 98346 443609 0 0 3 0x14200 bored smr 60775 72137 0 0 2 0x14200 zerothread 44844 296756 0 0 3 0x14200 aiodoned aiodoned 84088 471617 0 0 3 0x14200 syncer update 49026 30125 0 0 3 0x14200 cleaner cleaner 28955 411887 0 0 3 0x14200 reaper reaper 26952 324522 0 0 3 0x14200 pgdaemon pagedaemon 75897 1238 0 0 3 0x14200 bored viomb 53852 294075 0 0 3 0x40014200 acpi0 acpi0 94581 243266 0 0 3 0x14200 bored softnet0 15646 511677 0 0 3 0x14200 bored systqmp 77289 8677 0 0 3 0x14200 bored systq 65176 180550 0 0 3 0x40014200 tmoslp softclock 99635 115222 0 0 3 0x40014200 idle0 1 49789 0 0 3 0x80002 inode 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 10218 11181K 11409K 166960K 13231 0 pcb 18 18K 20K 166960K 354 0 rtable 239 11K 12K 166960K 546 0 pf 37 14K 17K 166960K 138 0 ifaddr 38 6K 7K 166960K 95 0 ifgroup 50 2K 2K 166960K 160 0 sysctl 4 1K 9K 166960K 13 0 counters 32 17K 18K 166960K 154 0 ioctlops 0 0K 4K 166960K 475 0 iov 0 0K 18K 166960K 42 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1431 90K 90K 166960K 2718 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 17 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 18 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 98K 166960K 1000 0 sigio 0 0K 0K 166960K 28 0 proc 51 50K 124K 166960K 620 0 subproc 72 4K 4K 166960K 83 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 239 0 in_multi 87 6K 7K 166960K 147 0 ether_multi 1 0K 0K 166960K 15 0 mrt 2 0K 0K 166960K 11 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 619 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 229 138K 170K 166960K 10661 0 UVM aobj 23 4K 4K 166960K 26 0 pinsyscall 33 66K 96K 166960K 2141 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 61 0 NDP 11 0K 2K 166960K 64 0 temp 79 8648K 8720K 166960K 27572 0 kqueue 12 18K 35K 166960K 278 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 120 162 0 158 1 0 1 1 0 8 0 rtentry 136 160 0 67 4 0 4 4 0 8 0 unpcb 144 843 0 826 5 0 5 5 0 8 4 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpqe 32 7 0 7 1 0 1 1 0 8 1 tcpcb 736 361 0 359 10 1 9 10 0 8 8 arp 96 24 0 8 1 0 1 1 0 8 0 ipq 40 4 0 0 1 0 1 1 0 8 0 ipqe 40 4 0 0 1 0 1 1 0 8 0 inpcb 328 1151 0 1144 11 2 9 10 0 8 7 ip6q 72 4 0 3 1 0 1 1 0 8 0 ip6af 40 8 0 6 1 0 1 1 0 8 0 nd6 112 35 0 10 1 0 1 1 0 8 0 pkpcb 40 39 0 39 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 0 1 1 0 8 1 ppxss 1072 107 0 107 1 0 1 1 0 8 1 pppxif 1384 7 0 7 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pfrktable 1344 4 0 1 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 134 0 131 1 0 1 1 0 8 0 pfstate 384 67 0 65 1 0 1 1 0 8 0 pfrule 1344 39 0 38 1 0 1 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 650 0 240 29 0 29 29 0 8 2 art_table 40 653 0 240 5 0 5 5 0 8 0 art_node 32 158 0 74 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 5 1 0 1 1 0 8 0 semapl 112 16 0 8 1 0 1 1 0 8 0 shmpl 112 23 0 3 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 3538 0 2041 95 0 95 95 0 8 0 ffsino 256 3538 0 2041 95 0 95 95 0 8 0 nchpl 144 4916 0 3207 64 0 64 64 0 8 0 rtmask 32 9 0 9 1 0 1 1 0 8 1 vnodes 216 4339 0 0 242 0 242 242 0 8 0 namei 1024 17137 0 17136 3 2 1 2 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 92 0 70 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 17 0 17 2 1 1 1 0 8 1 scxspl 216 17756 0 17754 10 2 8 8 1 8 7 plimitpl 152 318 0 303 1 0 1 1 0 8 0 sigapl 424 1302 0 1261 7 1 6 6 0 8 0 knotepl 120 50265 0 50225 10 0 10 10 0 8 8 kqueuepl 184 450 0 437 3 0 3 3 0 8 2 pipepl 304 239 0 212 5 0 5 5 0 8 2 fdescpl 448 1283 0 1256 5 1 4 5 0 8 0 filepl 120 9277 0 9063 14 0 14 14 0 8 5 lockfpl 104 515 0 510 2 0 2 2 0 8 1 lockfspl 48 179 0 175 1 0 1 1 0 8 0 sessionpl 144 24 0 18 1 0 1 1 0 8 0 pgrppl 48 53 0 39 1 0 1 1 0 8 0 ucredpl 104 2150 0 2139 1 0 1 1 0 8 0 zombiepl 144 1262 0 1261 1 0 1 1 0 8 0 processpl 1152 1302 0 1261 4 0 4 4 0 8 0 procpl 664 2602 0 2548 6 0 6 6 0 8 1 sosppl 168 3 0 3 1 0 1 1 0 8 1 sockpl 552 2286 0 2257 13 3 10 13 0 8 7 mcl64k 65536 199 0 199 2 1 1 1 0 8 1 mcl16k 16384 4 0 4 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 21 0 21 2 1 1 1 0 8 1 mcl4k 4096 3644 0 3594 16 8 8 15 0 8 0 mcl2k2 2112 3 0 3 1 0 1 1 0 8 1 mcl2k 2048 1325 0 1320 4 0 4 4 0 8 3 mtagpl 96 6 0 4 2 1 1 1 0 8 0 mbufpl 256 14696 0 14527 76 53 23 75 0 8 8 bufpl 280 6440 0 218 445 0 445 445 0 8 0 anonpl 24 189172 0 185296 52 4 48 48 0 187 16 amapchunkpl 152 34506 0 33967 33 1 32 32 0 158 9 amappl16 200 3481 0 3408 22 11 11 15 0 8 7 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 23 0 23 1 1 0 1 0 8 0 amappl13 176 435 0 434 1 0 1 1 0 8 0 amappl12 168 1642 0 1609 2 0 2 2 0 8 0 amappl11 160 6 0 6 1 1 0 1 0 8 0 amappl10 152 47 0 37 1 0 1 1 0 8 0 amappl9 144 346 0 345 1 0 1 1 0 8 0 amappl8 136 23 0 21 1 0 1 1 0 8 0 amappl7 128 102 0 101 1 0 1 1 0 8 0 amappl6 120 320 0 311 1 0 1 1 0 8 0 amappl5 112 90 0 84 1 0 1 1 0 8 0 amappl4 104 391 0 370 1 0 1 1 0 8 0 amappl3 96 6143 0 6045 3 0 3 3 0 8 0 amappl2 88 1406 0 1347 2 0 2 2 0 8 0 amappl1 80 12511 0 12145 13 0 13 13 0 8 1 amappl 88 9777 0 9603 5 0 5 5 0 92 0 uvmvnodes 80 4339 0 0 89 0 89 89 0 8 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 128 260 0 260 2 1 1 1 0 8 1 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 25 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1283 0 1256 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1283 0 1256 1 0 1 1 0 8 0 vmmpekpl 168 11318 0 11276 3 0 3 3 0 8 0 vmmpepl 168 85119 0 83553 93 0 93 93 0 357 9 vmsppl 368 1282 0 1256 4 1 3 4 0 8 0 rwobjpl 40 27680 0 22558 54 0 54 54 0 8 0 pdppl 4096 2573 0 2512 109 38 71 83 0 8 10 pvpl 32 546885 0 538781 127 0 127 127 0 265 41 pmappl 216 1282 0 1256 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 462 0 109 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb>