uvm_fault(0xfffffd806c0cab50, 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 *467457 80531 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7f39c0,ffffffffffffffff,0,80001b08,fffffd8067c1aaf8,fffffd807f7d7958) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f39c0,ffffffffffffffff,0,80001b08,fffffd8067c1aaf8,fffffd807f7d7958) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8067c1aaf8,4,1b08,0,ffff80002a7f39c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8067c1aaf8,4,1b08,0,ffff80002a7f39c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f39c0,ffff80002a8a5a20,ffff80002a8a5970) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8a5a20) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8485628bfd0, 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(0xfffffd806c0cab50, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7f39c0,ffffffffffffffff,0,80001b08,fffffd8067c1aaf8,fffffd807f7d7958) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f39c0,ffffffffffffffff,0,80001b08,fffffd8067c1aaf8,fffffd807f7d7958) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8067c1aaf8,4,1b08,0,ffff80002a7f39c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8067c1aaf8,4,1b08,0,ffff80002a7f39c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f39c0,ffff80002a8a5a20,ffff80002a8a5970) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8a5a20) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8485628bfd0, count: -5 ddb> show registers rdi 0xffff80002f114000 rsi 0x1ad0 __ALIGN_SIZE+0xad0 rbp 0xffff80002a8a5740 rbx 0xfffffd807f7d7958 rdx 0xffff80002f114000 rcx 0x1acf __ALIGN_SIZE+0xacf rax 0xffffffff8246b803 ktrops+0x43 r8 0xfffffd8067c1aaf8 r9 0xfffffd807f7d7958 r10 0x62d196e4dab9c91d r11 0xccfdafa4f0807154 r12 0xffff80002a7f39c0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80001b08 __kernel_virt_to_phys+0x1b08 rip 0xffffffff8246b818 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a8a56c0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=467457 pid=80531 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7bc7c8,0xffff80002a907248 process=0xffff8000ffff9e40 user=0xffff80002a8a0000, vmspace=0xfffffd806c0cab50 estcpu=34, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 3264 417367 9967 0 3 0x80 nanoslp syz-executor 3264 251774 9967 0 3 0x4000080 lockf syz-executor 3264 252130 9967 0 3 0x4000080 fsleep syz-executor 3264 144532 9967 0 3 0x4000080 fsleep syz-executor 34990 445958 61587 60928 3 0x90 nanoslp syz-executor 34990 242018 61587 60928 3 0x4000090 fsleep syz-executor 10139 417260 53258 0 2 0x10 syz-executor 10139 503873 53258 0 3 0x4000090 fsleep syz-executor 86351 411243 60476 0 2 0 syz-executor 86351 261836 60476 0 3 0x4000080 pipewr syz-executor 78723 202849 69545 0 2 0 syz-executor 78723 216955 69545 0 3 0x4000080 fsleep syz-executor 80531 243360 95476 0 2 0 syz-executor *80531 467457 95476 0 7 0x4000000 syz-executor 80531 148653 95476 0 3 0x4000080 fsleep syz-executor 21817 333198 0 0 3 0x14200 acct acct 20759 284623 10525 0 2 0x2 syz-executor 17245 154252 10525 0 2 0x2 syz-executor 53258 263668 10525 0 3 0x82 nanoslp syz-executor 9967 403326 10525 0 3 0x82 nanoslp syz-executor 12385 285864 1 0 3 0x100083 ttyin getty 42367 497221 0 0 3 0x14280 nfsidl nfsio 72066 233422 0 0 3 0x14280 nfsidl nfsio 29810 237977 0 0 3 0x14280 nfsidl nfsio 65375 75229 0 0 3 0x14280 nfsidl nfsio 84435 174756 0 0 3 0x14280 nfsidl nfsio 69317 272602 0 0 3 0x14280 nfsidl nfsio 33609 21188 0 0 3 0x14280 nfsidl nfsio 82692 421198 0 0 3 0x14280 nfsidl nfsio 90110 239036 0 0 3 0x14280 nfsidl nfsio 58296 357504 0 0 3 0x14280 nfsidl nfsio 19415 138134 0 0 3 0x14280 nfsidl nfsio 78081 324460 0 0 3 0x14280 nfsidl nfsio 77259 302791 0 0 3 0x14280 nfsidl nfsio 1419 222122 0 0 3 0x14280 nfsidl nfsio 91519 364538 0 0 3 0x14280 nfsidl nfsio 69047 286216 0 0 3 0x14280 nfsidl nfsio 74075 340379 0 0 3 0x14280 nfsidl nfsio 10933 332373 0 0 3 0x14280 nfsidl nfsio 65783 509872 0 0 3 0x14280 nfsidl nfsio 23588 290147 0 0 3 0x14280 nfsidl nfsio 75677 63189 0 0 3 0x14200 bored sosplice 69545 18133 10525 0 3 0x82 nanoslp syz-executor 60476 39129 10525 0 3 0x82 nanoslp syz-executor 95476 517780 10525 0 3 0x82 nanoslp syz-executor 61587 370199 10525 0 3 0x82 nanoslp syz-executor 10525 166914 23820 0 3 0x82 kqread syz-executor 23820 436257 5651 0 3 0x10008a sigsusp ksh 5651 334476 44726 0 3 0x98 kqread sshd-session 44726 255822 14803 0 3 0x92 kqread sshd-session 14803 447168 1 0 3 0x88 kqread sshd 82878 177611 2713 73 3 0x1100090 kqread syslogd 2713 376551 1 0 3 0x100082 sbwait syslogd 47464 517221 1 0 3 0x100080 kqread resolvd 8349 260254 32754 77 3 0x100092 kqread dhcpleased 55430 192914 32754 77 3 0x100092 kqread dhcpleased 32754 502125 1 0 3 0x80 kqread dhcpleased 51384 320357 0 0 3 0x14200 bored smr 35838 159801 0 0 2 0x14200 zerothread 6841 23230 0 0 3 0x14200 aiodoned aiodoned 17427 220658 0 0 3 0x14200 syncer update 58270 248658 0 0 3 0x14200 cleaner cleaner 36664 232488 0 0 3 0x14200 reaper reaper 72459 321690 0 0 3 0x14200 pgdaemon pagedaemon 17621 315067 0 0 3 0x14200 bored viomb 50800 406154 0 0 3 0x40014200 acpi0 acpi0 27259 283991 0 0 3 0x14200 bored softnet3 53675 6682 0 0 3 0x14200 bored softnet2 92686 154873 0 0 3 0x14200 bored softnet1 1916 15262 0 0 3 0x14200 bored softnet0 85175 32645 0 0 3 0x14200 bored systqmp 57555 299069 0 0 3 0x14200 bored systq 80448 4922 0 0 3 0x40014200 tmoslp softclock 83954 459587 0 0 3 0x40014200 idle0 1 225574 0 0 3 0x80082 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 10224 11211K 11465K 166960K 16743 0 pcb 17 22K 27K 166960K 740 0 rtable 141 8K 11K 166960K 1006 0 pf 36 14K 270K 166960K 276 0 ifaddr 30 5K 7K 166960K 158 0 ifgroup 53 2K 2K 166960K 272 0 sysctl 4 1K 5K 166960K 15 0 counters 30 17K 17K 166960K 105 0 ioctlops 0 0K 4K 166960K 623 0 iov 0 0K 24K 166960K 764 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1452 91K 92K 166960K 4849 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 9K 166960K 61 0 VM map 2 1K 1K 166960K 2 0 sem 26 33K 38K 166960K 38 0 dirhash 12 2K 3K 166960K 81 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 97K 166960K 3302 0 sigio 0 0K 0K 166960K 75 0 proc 61 59K 124K 166960K 983 0 subproc 72 4K 4K 166960K 136 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 4 0K 0K 166960K 629 0 in_multi 48 3K 7K 166960K 315 0 ether_multi 1 0K 0K 166960K 19 0 mrt 1 0K 0K 166960K 11 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 1207 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 219 73K 89K 166960K 31378 0 UVM aobj 74 5K 5K 166960K 79 0 pinsyscall 37 74K 96K 166960K 4510 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 299 0 NDP 11 0K 2K 166960K 110 0 temp 77 8636K 8764K 166960K 137796 0 kqueue 13 20K 32K 166960K 585 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 120 370 0 367 3 0 3 3 0 8 2 rtentry 112 274 0 221 4 0 4 4 0 8 0 unpcb 144 3053 0 3036 15 9 6 6 0 8 5 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 808 1389 0 1384 30 21 9 11 0 8 8 arp 88 46 0 35 1 0 1 1 0 8 0 ipq 40 39 0 39 1 0 1 1 0 8 1 ipqe 40 122 0 122 1 0 1 1 0 8 1 inpcb 344 4658 0 4647 43 34 9 13 0 8 7 ip6q 72 3 0 3 2 1 1 1 0 8 1 ip6af 40 6 0 6 2 1 1 1 0 8 1 nd6 104 55 0 44 1 0 1 1 0 8 0 pkpcb 40 17 0 17 6 5 1 1 0 8 1 kcovpl 48 15 0 7 1 0 1 1 0 8 0 ppxss 1072 42 0 42 4 3 1 1 0 8 1 pppxif 1376 10 0 10 3 2 1 1 0 8 1 pfrktable 1344 5 0 2 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfqueue 320 2 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 6 0 4 2 1 1 1 0 8 0 pfstate 344 4 0 3 2 1 1 1 0 8 0 pfrule 1344 22 0 20 1 0 1 1 0 8 0 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 1171 0 930 31 7 24 30 0 8 1 art_table 32 1176 0 930 4 0 4 4 0 8 0 art_node 16 262 0 220 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 30 0 6 1 0 1 1 0 8 0 shmpl 112 76 0 5 3 0 3 3 0 8 0 dirhash 1024 63 0 46 3 0 3 3 0 8 0 dino2pl 256 7785 0 6278 95 0 95 95 0 8 0 ffsino 248 7785 0 6278 95 0 95 95 0 8 0 nchpl 144 12543 0 11941 63 32 31 63 0 8 8 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 46743 0 46742 7 6 1 2 0 8 0 pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0 kstatmem 264 148 0 126 2 0 2 2 0 8 0 scsiplug 72 12 0 12 5 4 1 1 0 8 1 scxspl 216 36108 0 36108 14 12 2 8 1 8 2 plimitpl 152 846 0 829 1 0 1 1 0 8 0 sigapl 424 3592 0 3526 9 1 8 8 0 8 0 futexpl 64 49859 0 49853 1 0 1 1 0 8 0 knotepl 120 871926 0 871879 62 51 11 17 0 8 8 kqueuepl 184 1346 0 1337 12 8 4 4 0 8 3 pipepl 296 567 0 538 10 5 5 8 0 8 2 fdescpl 440 3550 0 3522 5 1 4 5 0 8 0 filepl 120 28913 0 28689 25 11 14 14 0 8 5 lockfpl 104 1280 0 1274 1 0 1 1 0 8 0 lockfspl 48 381 0 377 1 0 1 1 0 8 0 sessionpl 144 29 0 21 1 0 1 1 0 8 0 pgrppl 48 81 0 65 1 0 1 1 0 8 0 ucredpl 104 5497 0 5482 1 0 1 1 0 8 0 zombiepl 144 3721 0 3721 3 2 1 1 0 8 1 processpl 1104 3592 0 3526 5 0 5 5 0 8 0 procpl 656 8351 0 8276 10 2 8 8 0 8 0 sosppl 168 15 0 15 2 1 1 1 0 8 1 sockpl 528 8175 0 8145 42 32 10 14 0 8 7 mcl64k 65536 68 0 68 6 5 1 1 0 8 1 mcl16k 16384 5 0 5 3 2 1 1 0 8 1 mcl12k 12288 2 0 2 2 1 1 1 0 8 1 mcl9k 9216 5 0 5 2 1 1 1 0 8 1 mcl8k 8192 108 0 108 5 4 1 1 0 8 1 mcl4k 4096 6816 0 6761 14 5 9 12 0 8 1 mcl2k 2048 3685 0 3682 7 1 6 6 0 8 4 mtagpl 96 210 0 186 3 0 3 3 0 8 1 mbufpl 256 42864 0 42726 57 34 23 42 0 8 7 bufpl 280 8763 0 2535 446 0 446 446 0 8 0 anonpl 24 441714 0 426990 198 59 139 139 0 187 24 amapchunkpl 152 106428 0 105840 71 33 38 39 0 158 12 amappl16 200 8633 0 7995 85 31 54 59 0 8 7 amappl15 192 9 0 8 1 0 1 1 0 8 0 amappl14 184 122 0 112 1 0 1 1 0 8 0 amappl13 176 3 0 3 3 2 1 1 0 8 1 amappl12 168 4263 0 4235 3 1 2 3 0 8 0 amappl11 160 61 0 50 1 0 1 1 0 8 0 amappl10 152 10 0 10 2 1 1 1 0 8 1 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 111 0 100 1 0 1 1 0 8 0 amappl6 120 258 0 253 1 0 1 1 0 8 0 amappl5 112 142 0 135 1 0 1 1 0 8 0 amappl4 104 312 0 296 1 0 1 1 0 8 0 amappl3 96 21698 0 21589 5 1 4 4 0 8 0 amappl2 88 734 0 676 2 0 2 2 0 8 0 amappl1 80 17338 0 16818 13 1 12 13 0 8 0 amappl 88 30731 0 30560 6 1 5 5 0 92 0 dma16384 16384 1 0 1 1 0 1 1 0 8 1 dma8192 8192 2 0 2 2 1 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 2 0 2 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 1 0 1 0 8 0 dma128 128 260 0 260 4 3 1 1 0 8 1 dma64 64 7 0 7 2 1 1 1 0 8 1 dma32 32 9 0 9 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 78 0 5 2 0 2 2 0 8 0 uaddrrnd 24 3550 0 3522 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3550 0 3522 1 0 1 1 0 8 0 vmmpekpl 168 26437 0 26376 3 0 3 3 0 8 0 vmmpepl 168 217608 0 215285 150 21 129 129 0 357 11 vmsppl 360 3549 0 3522 4 1 3 4 0 8 0 rwobjpl 32 56256 0 48780 64 0 64 64 0 8 1 pdppl 4096 7107 0 7044 157 90 67 83 0 8 4 pvpl 32 1434854 0 1414768 339 98 241 241 0 265 51 pmappl 216 3549 0 3522 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 429 0 180 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7f39c0,ffffffffffffffff,0,80001b08,fffffd8067c1aaf8,fffffd807f7d7958) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f39c0,ffffffffffffffff,0,80001b08,fffffd8067c1aaf8,fffffd807f7d7958) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8067c1aaf8,4,1b08,0,ffff80002a7f39c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8067c1aaf8,4,1b08,0,ffff80002a7f39c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f39c0,ffff80002a8a5a20,ffff80002a8a5970) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8a5a20) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8485628bfd0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7f39c0,ffffffffffffffff,0,80001b08,fffffd8067c1aaf8,fffffd807f7d7958) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f39c0,ffffffffffffffff,0,80001b08,fffffd8067c1aaf8,fffffd807f7d7958) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8067c1aaf8,4,1b08,0,ffff80002a7f39c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8067c1aaf8,4,1b08,0,ffff80002a7f39c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f39c0,ffff80002a8a5a20,ffff80002a8a5970) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8a5a20) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8485628bfd0, count: -5