uvm_fault(0xfffffd806c22e590, 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 *366403 72276 0 0 0x4000000 0 syz-executor ktrops(ffff800037642538,ffffffffffffffff,0,c0000d06,fffffd807ca08708,fffffd807f7d7618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800037642538,ffffffffffffffff,0,c0000d06,fffffd807ca08708,fffffd807f7d7618) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807ca08708,4,40000d06,0,ffff800037642538) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807ca08708,4,40000d06,0,ffff800037642538) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff800037642538,ffff800037655580,ffff8000376554d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037655580) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x11795a63e90, 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(0xfffffd806c22e590, 0xf, 0, 1) -> e ddb> trace ktrops(ffff800037642538,ffffffffffffffff,0,c0000d06,fffffd807ca08708,fffffd807f7d7618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800037642538,ffffffffffffffff,0,c0000d06,fffffd807ca08708,fffffd807f7d7618) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807ca08708,4,40000d06,0,ffff800037642538) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807ca08708,4,40000d06,0,ffff800037642538) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff800037642538,ffff800037655580,ffff8000376554d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037655580) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x11795a63e90, count: -5 ddb> show registers rdi 0xffff8000315f0000 rsi 0x1692 __ALIGN_SIZE+0x692 rbp 0xffff8000376552a0 rbx 0xfffffd807f7d7618 rdx 0xffff8000315f0000 rcx 0x1691 __ALIGN_SIZE+0x691 rax 0xffffffff8298bca3 ktrops+0x43 r8 0xfffffd807ca08708 r9 0xfffffd807f7d7618 r10 0xa7e224295800e101 r11 0x85ecd4bd956c4c3d r12 0xffff800037642538 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xc0000d06 rip 0xffffffff8298bcb8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800037655220 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=366403 pid=72276 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=81, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a48ccc0,0xffff800037642038 process=0xffff8000ffff59c8 user=0xffff800037650000, vmspace=0xfffffd806c22e590 estcpu=31, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 3079 85185 41935 0 3 0x3000 suspend syz-executor 3079 56089 41935 0 2 0x4081000 syz-executor 4677 482315 47114 0 3 0x80 fsleep syz-executor 4677 270242 47114 0 3 0x4000080 sbwait syz-executor 72276 448430 98050 0 3 0x80 fsleep syz-executor *72276 366403 98050 0 7 0x4000000 syz-executor 67548 39128 58210 0 3 0x80 fsleep syz-executor 67548 104481 58210 0 3 0x4000080 msgwait syz-executor 79102 472517 0 0 3 0x14280 nfsidl nfsio 72351 215060 0 0 3 0x14280 nfsidl nfsio 93755 132714 0 0 3 0x14280 nfsidl nfsio 67140 399298 0 0 3 0x14280 nfsidl nfsio 42877 42014 0 0 3 0x14280 nfsidl nfsio 38197 161519 0 0 3 0x14280 nfsidl nfsio 61061 75967 0 0 3 0x14280 nfsidl nfsio 93778 367884 0 0 3 0x14280 nfsidl nfsio 2298 75321 0 0 3 0x14280 nfsidl nfsio 17351 388139 0 0 3 0x14280 nfsidl nfsio 213 74316 0 0 3 0x14280 nfsidl nfsio 34947 242758 0 0 3 0x14280 nfsidl nfsio 76723 364959 0 0 3 0x14280 nfsidl nfsio 73136 440299 0 0 3 0x14280 nfsidl nfsio 16435 488348 0 0 3 0x14280 nfsidl nfsio 21362 204298 0 0 3 0x14280 nfsidl nfsio 98519 415016 0 0 3 0x14280 nfsidl nfsio 98291 119098 0 0 3 0x14280 nfsidl nfsio 87872 45509 0 0 3 0x14280 nfsidl nfsio 793 506914 0 0 3 0x14280 nfsidl nfsio 42112 31341 1 0 3 0x100083 ttyin getty 97608 347057 0 0 3 0x14200 bored sosplice 41935 288176 54910 0 3 0x82 nanoslp syz-executor 58210 491901 54910 0 2 0x482 syz-executor 98050 45900 54910 0 2 0x482 syz-executor 47114 24435 54910 0 2 0x482 syz-executor 42293 309518 54910 0 2 0x2 syz-executor 84472 409256 54910 0 2 0x2 syz-executor 54189 502113 54910 0 2 0x2 syz-executor 54910 14910 3382 0 3 0x82 nanoslp syz-executor 3382 428694 24999 0 3 0x10008a sigsusp ksh 24999 7322 85745 0 3 0x98 kqread sshd-session 85745 199578 95700 0 3 0x92 kqread sshd-session 95700 406546 1 0 3 0x88 kqread sshd 5534 345196 46570 73 3 0x1100090 kqread syslogd 46570 23594 1 0 3 0x100082 sbwait syslogd 61099 38846 1 0 3 0x100080 kqread resolvd 43121 109075 20567 77 3 0x100092 kqread dhcpleased 48885 391882 20567 77 3 0x100092 kqread dhcpleased 20567 35085 1 0 3 0x80 kqread dhcpleased 81821 305459 0 0 3 0x14200 bored smr 25153 353587 0 0 2 0x14200 zerothread 80386 398092 0 0 3 0x14200 aiodoned aiodoned 16280 501042 0 0 3 0x14200 syncer update 15170 442366 0 0 3 0x14200 cleaner cleaner 6400 72028 0 0 3 0x14200 reaper reaper 31547 398937 0 0 3 0x14200 pgdaemon pagedaemon 61782 135426 0 0 3 0x14200 bored viomb 8841 516523 0 0 3 0x40014200 acpi0 acpi0 67959 249285 0 0 3 0x14200 bored softnet3 31114 24454 0 0 3 0x14200 bored softnet2 55649 46883 0 0 3 0x14200 bored softnet1 16717 429674 0 0 3 0x14200 bored softnet0 88412 165593 0 0 3 0x14200 bored systqmp 31312 483087 0 0 3 0x14200 bored systq 11239 330133 0 0 3 0x40014200 tmoslp softclock 23747 431906 0 0 3 0x40014200 idle0 1 224006 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 10172 11041K 11434K 166960K 11959 0 pcb 17 12K 12K 166960K 74 0 rtable 166 6K 8K 166960K 496 0 pf 28 12K 13K 166960K 41 0 ifaddr 34 5K 7K 166960K 56 0 ifgroup 46 2K 2K 166960K 67 0 counters 29 17K 17K 166960K 35 0 ioctlops 0 0K 4K 166960K 157 0 iov 0 0K 16K 166960K 27 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1428 90K 90K 166960K 1923 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 21 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 13 45K 97K 166960K 537 0 sigio 0 0K 0K 166960K 7 0 proc 60 59K 100K 166960K 527 0 subproc 91 5K 6K 166960K 273 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 95 0 in_multi 75 5K 7K 166960K 134 0 ether_multi 1 0K 0K 166960K 6 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 604 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 196 64K 88K 166960K 6147 0 UVM aobj 19 2K 2K 166960K 20 0 pinsyscall 34 68K 100K 166960K 1595 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 24 0 NDP 10 0K 2K 166960K 35 0 temp 40 6812K 6879K 166960K 18091 0 kqueue 13 20K 30K 166960K 83 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 72 0 69 1 0 1 1 0 8 0 rtentry 112 130 0 57 4 0 4 4 0 8 0 unpcb 144 506 0 488 10 1 9 10 0 8 8 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 172 0 166 8 0 8 8 0 8 7 arp 88 22 0 10 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 0 1 0 1 1 0 8 0 inpcb 336 583 0 573 7 0 7 7 0 8 6 nd6 104 28 0 10 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 21 0 14 1 0 1 1 0 8 0 ppxss 1072 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 540 0 190 29 0 29 29 0 8 2 art_table 32 542 0 190 4 0 4 4 0 8 0 art_node 16 128 0 64 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 18 0 8 1 0 1 1 0 8 0 shmpl 112 17 0 1 1 0 1 1 0 8 0 dirhash 1024 26 0 9 3 0 3 3 0 8 0 dino2pl 256 2247 0 736 95 0 95 95 0 8 0 ffsino 240 2247 0 736 90 0 90 90 0 8 0 nchpl 144 2948 0 1255 63 0 63 63 0 8 0 uvmvnodes 80 2747 0 0 57 0 57 57 0 8 0 vnodes 216 2747 0 0 153 0 153 153 0 8 0 namei 1024 9724 0 9720 2 0 2 2 0 8 1 kstatmem 264 32 0 12 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 12679 0 12679 8 0 8 8 1 8 8 plimitpl 152 164 0 149 1 0 1 1 0 8 0 sigapl 424 814 0 752 8 0 8 8 0 8 0 futexpl 64 6047 0 6044 1 0 1 1 0 8 0 knotepl 120 41123 0 41076 16 5 11 16 0 8 8 kqueuepl 184 116 0 107 1 0 1 1 0 8 0 pipepl 288 203 0 176 3 0 3 3 0 8 0 fdescpl 432 777 0 752 5 0 5 5 0 8 1 filepl 120 4464 0 4240 15 0 15 15 0 8 7 lockfpl 104 187 0 185 1 0 1 1 0 8 0 lockfspl 48 83 0 81 1 0 1 1 0 8 0 sessionpl 144 36 0 28 1 0 1 1 0 8 0 pgrppl 48 62 0 47 1 0 1 1 0 8 0 ucredpl 104 682 0 671 1 0 1 1 0 8 0 zombiepl 144 753 0 752 1 0 1 1 0 8 0 processpl 1096 814 0 752 5 0 5 5 0 8 0 procpl 648 1380 0 1314 8 0 8 8 0 8 1 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 504 1171 0 1140 35 23 12 34 0 8 7 mcl64k 65536 7 0 7 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 11 0 11 1 0 1 1 0 8 1 mcl4k 4096 3063 0 3007 14 0 14 14 0 8 6 mcl2k2 2112 2 0 2 1 0 1 1 0 8 1 mcl2k 2048 517 0 514 3 0 3 3 0 8 2 mtagpl 96 11 0 5 1 0 1 1 0 8 0 mbufpl 256 8428 0 8277 26 4 22 26 0 8 8 bufpl 280 5365 0 95 377 0 377 377 0 8 0 anonpl 24 175774 0 171957 51 0 51 51 0 187 22 amapchunkpl 152 20981 0 20529 34 0 34 34 0 158 13 amappl16 200 4213 0 4185 16 5 11 15 0 8 8 amappl15 192 37 0 36 1 0 1 1 0 8 0 amappl14 184 111 0 101 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 0 1 1 0 8 1 amappl12 168 1450 0 1424 3 0 3 3 0 8 1 amappl11 160 50 0 40 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 0 1 1 0 8 1 amappl9 144 152 0 152 1 0 1 1 0 8 1 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 100 0 89 1 0 1 1 0 8 0 amappl6 120 174 0 173 1 0 1 1 0 8 0 amappl5 112 128 0 119 1 0 1 1 0 8 0 amappl4 104 294 0 278 1 0 1 1 0 8 0 amappl3 96 3679 0 3605 3 0 3 3 0 8 0 amappl2 88 1056 0 983 2 0 2 2 0 8 0 amappl1 80 8710 0 8211 13 0 13 13 0 8 1 amappl 88 5730 0 5587 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 128 254 0 254 1 0 1 1 0 8 1 dma64 64 8 0 8 1 0 1 1 0 8 1 dma32 32 8 0 8 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 19 0 1 1 0 1 1 0 8 0 uaddrrnd 24 777 0 752 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 777 0 752 1 0 1 1 0 8 0 vmmpekpl 168 7845 0 7801 3 0 3 3 0 8 0 vmmpepl 168 55288 0 53740 88 0 88 88 0 357 11 vmsppl 352 776 0 752 4 0 4 4 0 8 1 rwobjpl 24 21289 0 17717 23 0 23 23 0 8 0 pdppl 4096 1560 0 1504 104 40 64 82 0 8 8 pvpl 32 398857 0 390145 224 0 224 224 0 265 135 pmappl 216 776 0 752 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 428 0 67 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800037642538,ffffffffffffffff,0,c0000d06,fffffd807ca08708,fffffd807f7d7618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800037642538,ffffffffffffffff,0,c0000d06,fffffd807ca08708,fffffd807f7d7618) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807ca08708,4,40000d06,0,ffff800037642538) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807ca08708,4,40000d06,0,ffff800037642538) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff800037642538,ffff800037655580,ffff8000376554d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037655580) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x11795a63e90, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800037642538,ffffffffffffffff,0,c0000d06,fffffd807ca08708,fffffd807f7d7618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800037642538,ffffffffffffffff,0,c0000d06,fffffd807ca08708,fffffd807f7d7618) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807ca08708,4,40000d06,0,ffff800037642538) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807ca08708,4,40000d06,0,ffff800037642538) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff800037642538,ffff800037655580,ffff8000376554d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037655580) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x11795a63e90, count: -5