uvm_fault(0xfffffd806c08c010, 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 * 67241 23345 0 0x1000 0x4080000 0 syz-executor ktrops(ffff80002a812d08,ffffffffffffffff,0,80000106,fffffd800ab12d00,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a812d08,ffffffffffffffff,0,80000106,fffffd800ab12d00,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd800ab12d00,4,106,0,ffff80002a812d08) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd800ab12d00,4,106,0,ffff80002a812d08) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a812d08,ffff80002ccfb730,ffff80002ccfb680) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002ccfb730) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002ccfb730) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x112dfae0f70, 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(0xfffffd806c08c010, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a812d08,ffffffffffffffff,0,80000106,fffffd800ab12d00,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a812d08,ffffffffffffffff,0,80000106,fffffd800ab12d00,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd800ab12d00,4,106,0,ffff80002a812d08) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd800ab12d00,4,106,0,ffff80002a812d08) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a812d08,ffff80002ccfb730,ffff80002ccfb680) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002ccfb730) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002ccfb730) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x112dfae0f70, count: -5 ddb> show registers rdi 0xffff80002a812d08 rsi 0xffffffffffffffff rbp 0xffff80002ccfb450 rbx 0xfffffd807f7d78f0 rdx 0 rcx 0x80000106 __kernel_virt_to_phys+0x106 rax 0xffff80002a812d08 r8 0xfffffd800ab12d00 r9 0xfffffd807f7d78f0 r10 0x94c35cfea61ebefd r11 0xd1d1bb36d7defce8 r12 0xffff80002a812d08 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000106 __kernel_virt_to_phys+0x106 rip 0xffffffff81429248 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002ccfb3d0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=67241 pid=23345 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=17, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a8127e8 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a8127e8,0xffffffff8398e790 process=0xffff80002a7b7440 user=0xffff80002ccf6000, vmspace=0xfffffd806c08c010 estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 23345 147268 78188 0 3 0x3000 suspend syz-executor *23345 67241 78188 0 7 0x4081000 syz-executor 11438 79578 98451 0 2 0 syz-executor 11438 157936 98451 0 3 0x4000080 fsleep syz-executor 2976 205366 71852 0 3 0x80 nanoslp syz-executor 2976 40357 71852 0 3 0x4000080 fsleep syz-executor 88591 221232 9395 60928 2 0x10 syz-executor 88591 245688 9395 60928 3 0x4000090 fsleep syz-executor 30584 29182 15204 0 2 0 syz-executor 30584 227603 15204 0 3 0x4000080 fsleep syz-executor 30584 301928 15204 0 3 0x4000080 fsleep syz-executor 627 368876 0 0 3 0x14200 acct acct 71852 250050 68734 0 3 0x82 nanoslp syz-executor 91629 420744 68734 0 2 0x2 syz-executor 9395 410562 68734 0 3 0x82 nanoslp syz-executor 95657 69152 0 0 3 0x14280 nfsidl nfsio 28188 387224 0 0 3 0x14280 nfsidl nfsio 10505 401724 0 0 3 0x14280 nfsidl nfsio 68787 392051 0 0 3 0x14280 nfsidl nfsio 54775 199991 0 0 3 0x14280 nfsidl nfsio 3988 356924 0 0 3 0x14280 nfsidl nfsio 60503 126246 0 0 3 0x14280 nfsidl nfsio 77781 191756 0 0 3 0x14280 nfsidl nfsio 5012 157921 0 0 3 0x14280 nfsidl nfsio 99024 347047 0 0 3 0x14280 nfsidl nfsio 17711 391420 0 0 3 0x14280 nfsidl nfsio 60541 197104 0 0 3 0x14280 nfsidl nfsio 21566 251157 0 0 3 0x14280 nfsidl nfsio 98398 483004 0 0 3 0x14280 nfsidl nfsio 56158 130259 0 0 3 0x14280 nfsidl nfsio 84628 33191 0 0 3 0x14280 nfsidl nfsio 11735 170921 0 0 3 0x14280 nfsidl nfsio 13491 512583 0 0 3 0x14280 nfsidl nfsio 17412 137878 0 0 3 0x14280 nfsidl nfsio 84008 158515 0 0 3 0x14280 nfsidl nfsio 65901 318435 1 0 3 0x100083 ttyin getty 87553 446134 0 0 3 0x14200 bored sosplice 98451 81005 68734 0 3 0x82 nanoslp syz-executor 45625 182037 68734 0 2 0x2 syz-executor 78188 427651 68734 0 3 0x82 nanoslp syz-executor 15204 415537 68734 0 3 0x82 nanoslp syz-executor 68734 194857 7625 0 3 0x82 wait syz-executor 7625 119423 1735 0 3 0x10008a sigsusp ksh 1735 78226 6901 0 3 0x98 kqread sshd-session 6901 518438 29933 0 3 0x92 kqread sshd-session 29933 327849 1 0 3 0x88 kqread sshd 80248 314041 87667 73 3 0x1100090 kqread syslogd 87667 430522 1 0 3 0x100082 sbwait syslogd 57916 323306 1 0 3 0x100080 kqread resolvd 34625 118939 54582 77 3 0x100092 kqread dhcpleased 10950 368046 54582 77 3 0x100092 kqread dhcpleased 54582 99810 1 0 3 0x80 kqread dhcpleased 70351 40245 0 0 3 0x14200 bored smr 54635 70829 0 0 2 0x14200 zerothread 85795 129666 0 0 3 0x14200 aiodoned aiodoned 90299 415887 0 0 3 0x14200 syncer update 28969 41725 0 0 3 0x14200 cleaner cleaner 16048 200061 0 0 3 0x14200 reaper reaper 61392 194452 0 0 3 0x14200 pgdaemon pagedaemon 95184 513584 0 0 3 0x14200 bored viomb 16303 111687 0 0 3 0x40014200 acpi0 acpi0 42365 122547 0 0 3 0x14200 bored softnet3 27878 156351 0 0 3 0x14200 bored softnet2 65448 452726 0 0 3 0x14200 bored softnet1 17140 444210 0 0 2 0x14200 softnet0 68823 3305 0 0 3 0x14200 bored systqmp 35369 237924 0 0 3 0x14200 bored systq 21648 1741 0 0 3 0x40014200 tmoslp softclock 23715 157665 0 0 3 0x40014200 idle0 1 100934 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 10183 11184K 11622K 166960K 14398 0 pcb 17 15K 16K 166960K 397 0 rtable 219 11K 11K 166960K 1037 0 pf 30 13K 21K 166960K 182 0 ifaddr 39 7K 8K 166960K 140 0 ifgroup 46 2K 2K 166960K 242 0 sysctl 4 1K 2K 166960K 9 0 counters 29 17K 18K 166960K 279 0 ioctlops 0 0K 4K 166960K 723 0 iov 0 0K 17K 166960K 180 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1422 89K 90K 166960K 3162 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 44 0 VM map 2 1K 1K 166960K 2 0 sem 30 10K 11K 166960K 172 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 14 49K 97K 166960K 1875 0 sigio 0 0K 0K 166960K 69 0 proc 60 59K 124K 166960K 763 0 subproc 63 3K 4K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 247 0 in_multi 77 5K 7K 166960K 200 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 676 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 203 159K 176K 166960K 18177 0 UVM aobj 62 14K 14K 166960K 70 0 pinsyscall 36 72K 96K 166960K 3076 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 135 0 NDP 10 0K 2K 166960K 97 0 temp 74 8684K 8764K 166960K 47826 0 kqueue 14 22K 30K 166960K 291 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 120 432 0 429 4 3 1 3 0 8 0 rtentry 136 350 0 259 5 0 5 5 0 8 0 unpcb 144 1668 0 1651 11 7 4 6 0 8 3 syncache 336 10 0 10 4 3 1 1 0 8 1 tcpqe 32 7 0 7 3 2 1 1 0 8 1 tcpcb 808 602 0 597 13 5 8 8 0 8 7 arp 88 98 0 79 1 0 1 1 0 8 0 ipq 40 3 0 3 1 0 1 1 0 8 1 ipqe 40 5 0 5 1 0 1 1 0 8 1 inpcb 344 2180 0 2171 32 23 9 14 0 8 8 nd6 104 47 0 27 1 0 1 1 0 8 0 pkpcb 40 16 0 16 4 3 1 1 0 8 1 kcovpl 48 13 0 6 1 0 1 1 0 8 0 ppxss 1072 223 0 223 4 3 1 1 0 8 1 pppxif 1384 9 0 9 4 3 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfstkey 128 1 0 1 1 1 0 1 0 8 0 pfstate 344 1 0 1 1 1 0 1 0 8 0 pfrule 1344 4 0 4 1 1 0 1 0 8 0 rttmr 136 3 0 3 2 2 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1024 0 648 37 11 26 31 0 8 2 art_table 32 1027 0 648 4 0 4 4 0 8 0 art_node 16 341 0 263 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 2 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 130 0 102 1 0 1 1 0 8 0 shmpl 112 67 0 8 2 0 2 2 0 8 0 dirhash 1024 45 0 28 3 0 3 3 0 8 0 dino2pl 256 4853 0 3353 95 0 95 95 0 8 0 ffsino 248 4853 0 3353 95 0 95 95 0 8 0 nchpl 144 7504 0 6968 64 42 22 64 0 8 0 rtmask 32 11 0 11 4 3 1 1 0 8 1 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 27971 0 27970 4 3 1 2 0 8 0 kstatmem 264 140 0 120 3 1 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 10 0 10 4 3 1 1 0 8 1 scxspl 216 23850 0 23850 11 9 2 8 1 8 2 plimitpl 152 410 0 394 1 0 1 1 0 8 0 sigapl 424 2183 0 2118 8 0 8 8 0 8 0 futexpl 64 27971 0 27966 1 0 1 1 0 8 0 knotepl 120 84136 0 83870 47 38 9 16 0 8 0 kqueuepl 184 532 0 522 4 1 3 3 0 8 2 pipepl 296 315 0 286 4 1 3 4 0 8 0 fdescpl 440 2137 0 2110 5 1 4 5 0 8 0 filepl 120 15818 0 15602 20 8 12 14 0 8 3 lockfpl 104 869 0 866 3 1 2 2 0 8 1 lockfspl 48 217 0 214 1 0 1 1 0 8 0 sessionpl 144 34 0 26 1 0 1 1 0 8 0 pgrppl 48 145 0 129 1 0 1 1 0 8 0 ucredpl 104 2536 0 2524 1 0 1 1 0 8 0 zombiepl 144 2293 0 2291 2 1 1 1 0 8 0 processpl 1112 2183 0 2118 5 0 5 5 0 8 0 procpl 656 4744 0 4673 8 0 8 8 0 8 0 sosppl 168 12 0 12 4 3 1 1 0 8 1 sockpl 528 4396 0 4367 36 25 11 17 0 8 8 mcl64k 65536 190 0 190 2 1 1 1 0 8 1 mcl16k 16384 8 0 8 1 1 0 1 0 8 0 mcl12k 12288 5 0 5 1 1 0 1 0 8 0 mcl9k 9216 39 0 39 4 3 1 1 0 8 1 mcl8k 8192 22 0 22 3 3 0 1 0 8 0 mcl4k 4096 4844 0 4791 15 8 7 14 0 8 0 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 2232 0 2226 9 7 2 6 0 8 0 mtagpl 96 123 0 54 3 0 3 3 0 8 0 mbufpl 256 29476 0 29193 333 298 35 215 0 8 0 bufpl 280 7343 0 1116 445 0 445 445 0 8 0 anonpl 24 275475 0 272452 74 25 49 49 0 187 18 amapchunkpl 152 61773 0 61382 54 28 26 35 0 158 5 amappl16 200 4799 0 4765 40 27 13 16 0 8 8 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 131 0 121 1 0 1 1 0 8 0 amappl13 176 40 0 39 1 0 1 1 0 8 0 amappl12 168 2831 0 2804 3 1 2 3 0 8 0 amappl11 160 43 0 33 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 242 0 242 1 1 0 1 0 8 0 amappl8 136 27 0 25 1 0 1 1 0 8 0 amappl7 128 124 0 113 1 0 1 1 0 8 0 amappl6 120 240 0 236 1 0 1 1 0 8 0 amappl5 112 136 0 129 1 0 1 1 0 8 0 amappl4 104 313 0 298 1 0 1 1 0 8 0 amappl3 96 12493 0 12403 4 0 4 4 0 8 0 amappl2 88 808 0 750 2 0 2 2 0 8 0 amappl1 80 15806 0 15268 14 1 13 13 0 8 0 amappl 88 16984 0 16846 6 1 5 5 0 92 0 dma8192 8192 2 0 2 1 0 1 1 0 8 1 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 128 254 0 254 2 2 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 69 0 8 2 0 2 2 0 8 0 uaddrrnd 24 2137 0 2110 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2137 0 2110 1 0 1 1 0 8 0 vmmpekpl 168 16262 0 16213 3 0 3 3 0 8 0 vmmpepl 168 135390 0 133640 105 11 94 95 0 357 7 vmsppl 360 2136 0 2110 4 1 3 4 0 8 0 rwobjpl 32 38953 0 32142 56 0 56 56 0 8 0 pdppl 4096 4281 0 4220 139 72 67 83 0 8 6 pvpl 32 867595 0 859386 163 43 120 120 0 265 25 pmappl 216 2136 0 2110 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 665 0 414 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a812d08,ffffffffffffffff,0,80000106,fffffd800ab12d00,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a812d08,ffffffffffffffff,0,80000106,fffffd800ab12d00,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd800ab12d00,4,106,0,ffff80002a812d08) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd800ab12d00,4,106,0,ffff80002a812d08) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a812d08,ffff80002ccfb730,ffff80002ccfb680) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002ccfb730) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002ccfb730) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x112dfae0f70, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a812d08,ffffffffffffffff,0,80000106,fffffd800ab12d00,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a812d08,ffffffffffffffff,0,80000106,fffffd800ab12d00,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd800ab12d00,4,106,0,ffff80002a812d08) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd800ab12d00,4,106,0,ffff80002a812d08) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a812d08,ffff80002ccfb730,ffff80002ccfb680) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002ccfb730) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002ccfb730) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x112dfae0f70, count: -5