uvm_fault(0xfffffd806c204d88, 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 *157132 53423 0 0 0x4000000 0 syz-executor ktrops(ffff80002a4962a0,ffffffffffffffff,0,a0c7df9b,fffffd805a7d48b0,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4962a0,ffffffffffffffff,0,a0c7df9b,fffffd805a7d48b0,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd805a7d48b0,4,20c7df9b,0,ffff80002a4962a0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd805a7d48b0,4,20c7df9b,0,ffff80002a4962a0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4962a0,ffff80002a5330e0,ffff80002a533030) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a5330e0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x876f020ad40, 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(0xfffffd806c204d88, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a4962a0,ffffffffffffffff,0,a0c7df9b,fffffd805a7d48b0,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4962a0,ffffffffffffffff,0,a0c7df9b,fffffd805a7d48b0,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd805a7d48b0,4,20c7df9b,0,ffff80002a4962a0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd805a7d48b0,4,20c7df9b,0,ffff80002a4962a0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4962a0,ffff80002a5330e0,ffff80002a533030) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a5330e0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x876f020ad40, count: -5 ddb> show registers rdi 0xffff800035e12000 rsi 0x16e4 __ALIGN_SIZE+0x6e4 rbp 0xffff80002a532e00 rbx 0xfffffd807f7d7750 rdx 0xffff800035e12000 rcx 0x16e3 __ALIGN_SIZE+0x6e3 rax 0xffffffff8293f973 ktrops+0x43 r8 0xfffffd805a7d48b0 r9 0xfffffd807f7d7750 r10 0xf0ecae112d76bb7e r11 0x1427afe4013e86a6 r12 0xffff80002a4962a0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9b rip 0xffffffff8293f988 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a532d80 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=157132 pid=53423 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a497458,0xffff80003763bc10 process=0xffff80002a4659b8 user=0xffff80002a52e000, vmspace=0xfffffd806c204d88 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 53423 437779 30014 0 2 0 syz-executor *53423 157132 30014 0 7 0x4000000 syz-executor 26894 115863 24626 0 2 0 syz-executor 26894 458047 24626 0 3 0x4000080 fsleep syz-executor 26894 438219 24626 0 3 0x4000080 fsleep syz-executor 41681 500292 14153 0 2 0 syz-executor 41681 296184 14153 0 3 0x4000080 fsleep syz-executor 67715 400051 80900 0 3 0x80 nanoslp syz-executor 67715 207955 80900 0 3 0x4000080 ttyout syz-executor 54559 190978 97323 0 2 0 syz-executor 54559 472910 97323 0 3 0x4000080 lockf syz-executor 54559 103591 97323 0 3 0x4000080 fsleep syz-executor 30014 449508 75931 0 3 0x82 nanoslp syz-executor 2336 409530 75931 0 3 0x82 nanoslp syz-executor 24626 203690 75931 0 3 0x82 nanoslp syz-executor 97323 29727 75931 0 3 0x82 nanoslp syz-executor 28339 363264 75931 0 2 0x2 syz-executor 14153 399493 75931 0 3 0x82 nanoslp syz-executor 25437 31314 75931 0 2 0x2 syz-executor 80900 425854 75931 0 3 0x82 nanoslp syz-executor 73141 503556 0 0 3 0x14200 acct acct 54358 518322 1 0 3 0x100083 ttyopn getty 36391 10261 0 0 3 0x14200 bored sosplice 75931 470952 83593 0 3 0x82 kqread syz-executor 83593 30613 81553 0 3 0x10008a sigsusp ksh 81553 193172 39239 0 3 0x98 kqread sshd-session 39239 443410 14398 0 3 0x92 kqread sshd-session 14398 61284 1 0 3 0x88 kqread sshd 33528 313099 20721 73 2 0x1100010 syslogd 20721 355041 1 0 3 0x100082 sbwait syslogd 45373 125576 1 0 3 0x100080 kqread resolvd 74030 218259 44358 77 3 0x100092 kqread dhcpleased 19072 509426 44358 77 3 0x100092 kqread dhcpleased 44358 169507 1 0 3 0x80 kqread dhcpleased 22424 38971 0 0 3 0x14200 bored smr 3526 249556 0 0 2 0x14200 zerothread 42982 452038 0 0 3 0x14200 aiodoned aiodoned 80840 465979 0 0 3 0x14200 syncer update 81666 170295 0 0 3 0x14200 cleaner cleaner 38970 324170 0 0 3 0x14200 reaper reaper 39973 293523 0 0 3 0x14200 pgdaemon pagedaemon 18847 123885 0 0 3 0x14200 bored viomb 20068 482607 0 0 3 0x40014200 acpi0 acpi0 84519 97577 0 0 3 0x14200 bored softnet3 74632 172539 0 0 3 0x14200 bored softnet2 52830 402439 0 0 3 0x14200 bored softnet1 95984 18328 0 0 3 0x14200 bored softnet0 85267 258003 0 0 3 0x14200 bored systqmp 64344 170269 0 0 3 0x14200 bored systq 91879 16019 0 0 3 0x40014200 tmoslp softclock 48077 30531 0 0 3 0x40014200 idle0 1 63097 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 10200 10109K 10429K 166960K 13919 0 pcb 18 16K 18K 166960K 422 0 rtable 223 9K 9K 166960K 3161 0 pf 35 14K 21K 166960K 287 0 ifaddr 42 8K 9K 166960K 436 0 ifgroup 54 2K 2K 166960K 469 0 sysctl 4 1K 1K 166960K 9 0 counters 31 17K 17K 166960K 140 0 ioctlops 0 0K 4K 166960K 254 0 iov 0 0K 18K 166960K 169 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1492 94K 94K 166960K 3932 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 48 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 34 0 dirhash 15 2K 3K 166960K 42 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 16 57K 97K 166960K 2878 0 sigio 0 0K 0K 166960K 103 0 proc 60 59K 108K 166960K 3111 0 subproc 104 6K 6K 166960K 1263 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 330 0 in_multi 98 7K 7K 166960K 1135 0 ether_multi 1 0K 0K 166960K 17 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 2K 166960K 1716 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 215 72K 90K 166960K 22321 0 UVM aobj 123 3K 4K 166960K 132 0 pinsyscall 37 74K 100K 166960K 6217 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 140 0 NDP 12 0K 2K 166960K 318 0 temp 77 6816K 6939K 166960K 85405 0 kqueue 14 22K 30K 166960K 241 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 120 322 0 318 1 0 1 1 0 8 0 rtentry 112 1120 0 1020 4 0 4 4 0 8 1 unpcb 144 1649 0 1631 6 0 6 6 0 8 5 syncache 336 11 0 11 1 0 1 1 0 8 1 tcpqe 32 13 0 13 1 0 1 1 0 8 1 tcpcb 808 578 0 572 8 0 8 8 0 8 7 arp 88 201 0 183 1 0 1 1 0 8 0 inpcb 336 2930 0 2918 16 2 14 15 0 8 13 nd6 104 293 0 269 1 0 1 1 0 8 0 pkpcb 40 54 0 54 1 0 1 1 0 8 1 kcovpl 48 97 0 89 1 0 1 1 0 8 0 ppxss 1072 13 0 13 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pffrag 232 17 0 17 1 0 1 1 0 482 1 pffrnode 88 17 0 17 1 0 1 1 0 8 1 pffrent 40 149 0 149 1 0 1 1 0 8 1 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 8 0 4 1 0 1 1 0 8 0 pfstate 344 4 0 2 1 0 1 1 0 8 0 pfrule 1344 15 0 15 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 4517 0 4072 33 3 30 30 0 8 1 art_table 32 4520 0 4072 4 0 4 4 0 8 0 art_node 16 1117 0 1027 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 16 1 0 1 1 0 8 0 semapl 112 31 0 21 1 0 1 1 0 8 0 shmpl 112 129 0 9 4 0 4 4 0 8 0 dirhash 1024 38 0 19 3 0 3 3 0 8 0 dino2pl 256 4420 0 2748 105 0 105 105 0 8 0 ffsino 240 4420 0 2748 99 0 99 99 0 8 0 nchpl 144 6720 0 4917 67 0 67 67 0 8 0 uvmvnodes 80 6468 0 0 132 0 132 132 0 8 0 vnodes 216 6468 0 0 360 0 360 360 0 8 0 namei 1024 32195 0 32194 2 0 2 2 0 8 1 kstatmem 264 242 0 218 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 40943 0 40943 8 0 8 8 1 8 8 plimitpl 152 595 0 578 1 0 1 1 0 8 0 sigapl 424 2983 0 2937 7 0 7 7 0 8 1 futexpl 64 22555 0 22551 1 0 1 1 0 8 0 knotepl 120 53675 0 53627 10 0 10 10 0 8 8 kqueuepl 184 681 0 671 6 0 6 6 0 8 5 pipepl 288 597 0 570 7 0 7 7 0 8 4 fdescpl 432 2964 0 2936 5 0 5 5 0 8 1 filepl 120 16927 0 16668 17 1 16 16 0 8 7 lockfpl 104 924 0 917 2 0 2 2 0 8 1 lockfspl 48 309 0 303 1 0 1 1 0 8 0 sessionpl 144 113 0 105 1 0 1 1 0 8 0 pgrppl 48 298 0 282 1 0 1 1 0 8 0 ucredpl 104 2649 0 2638 1 0 1 1 0 8 0 zombiepl 144 2938 0 2937 1 0 1 1 0 8 0 processpl 1096 2983 0 2937 4 0 4 4 0 8 0 procpl 648 5168 0 5115 6 0 6 6 0 8 0 sosppl 168 8 0 8 1 0 1 1 0 8 1 sockpl 504 4985 0 4951 52 30 22 25 0 8 17 mcl64k 65536 10 0 10 1 0 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 mcl8k 8192 34 0 34 1 0 1 1 0 8 1 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k2 2112 3 0 3 1 0 1 1 0 8 1 mcl2k 2048 10815 0 10713 32 11 21 32 0 8 7 mtagpl 96 208 0 207 2 0 2 2 0 8 1 mbufpl 256 31075 0 30918 22 3 19 21 0 8 8 bufpl 280 12687 0 5209 535 0 535 535 0 8 0 anonpl 24 407726 0 404450 74 0 74 74 0 187 32 amapchunkpl 152 70951 0 70492 35 0 35 35 0 158 15 amappl16 200 7350 0 7328 79 65 14 23 0 8 11 amappl15 192 8 0 8 1 0 1 1 0 8 1 amappl14 184 290 0 280 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 0 1 1 0 8 1 amappl12 168 4982 0 4954 3 0 3 3 0 8 1 amappl11 160 69 0 58 1 0 1 1 0 8 0 amappl10 152 12 0 12 1 0 1 1 0 8 1 amappl9 144 142 0 141 1 0 1 1 0 8 0 amappl8 136 18 0 17 1 0 1 1 0 8 0 amappl7 128 273 0 263 1 0 1 1 0 8 0 amappl6 120 1050 0 1049 1 0 1 1 0 8 0 amappl5 112 556 0 547 1 0 1 1 0 8 0 amappl4 104 553 0 537 1 0 1 1 0 8 0 amappl3 96 13944 0 13838 4 0 4 4 0 8 1 amappl2 88 1904 0 1841 2 0 2 2 0 8 0 amappl1 80 20861 0 20356 14 0 14 14 0 8 2 amappl 88 21180 0 21019 5 0 5 5 0 92 0 dma8192 8192 1 0 1 1 0 1 1 0 8 1 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 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 72 131 0 9 3 0 3 3 0 8 0 uaddrrnd 24 2964 0 2936 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2964 0 2936 1 0 1 1 0 8 0 vmmpekpl 168 22991 0 22937 3 0 3 3 0 8 0 vmmpepl 168 182941 0 181271 89 0 89 89 0 357 10 vmsppl 344 2963 0 2936 4 0 4 4 0 8 1 rwobjpl 24 56689 0 49267 47 0 47 47 0 8 1 pdppl 4096 5934 0 5872 244 178 66 82 0 8 4 pvpl 32 1373698 0 1363592 259 0 259 259 0 265 149 pmappl 216 2963 0 2936 3 0 3 3 0 8 1 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 635 0 227 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a4962a0,ffffffffffffffff,0,a0c7df9b,fffffd805a7d48b0,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4962a0,ffffffffffffffff,0,a0c7df9b,fffffd805a7d48b0,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd805a7d48b0,4,20c7df9b,0,ffff80002a4962a0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd805a7d48b0,4,20c7df9b,0,ffff80002a4962a0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4962a0,ffff80002a5330e0,ffff80002a533030) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a5330e0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x876f020ad40, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a4962a0,ffffffffffffffff,0,a0c7df9b,fffffd805a7d48b0,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4962a0,ffffffffffffffff,0,a0c7df9b,fffffd805a7d48b0,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd805a7d48b0,4,20c7df9b,0,ffff80002a4962a0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd805a7d48b0,4,20c7df9b,0,ffff80002a4962a0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4962a0,ffff80002a5330e0,ffff80002a533030) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a5330e0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x876f020ad40, count: -5