uvm_fault(0xfffffd806c0a2448, 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 *280838 37382 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7f0cf0,ffffffffffffffff,0,80000310,fffffd806717ba20,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f0cf0,ffffffffffffffff,0,80000310,fffffd806717ba20,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806717ba20,4,310,0,ffff80002a7f0cf0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806717ba20,4,310,0,ffff80002a7f0cf0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f0cf0,ffff80002ccfb2d0,ffff80002ccfb220) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002ccfb2d0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002ccfb2d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3a45375370, 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(0xfffffd806c0a2448, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7f0cf0,ffffffffffffffff,0,80000310,fffffd806717ba20,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f0cf0,ffffffffffffffff,0,80000310,fffffd806717ba20,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806717ba20,4,310,0,ffff80002a7f0cf0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806717ba20,4,310,0,ffff80002a7f0cf0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f0cf0,ffff80002ccfb2d0,ffff80002ccfb220) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002ccfb2d0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002ccfb2d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3a45375370, count: -5 ddb> show registers rdi 0xffff800031d02000 rsi 0x2b7b __ALIGN_SIZE+0x1b7b rbp 0xffff80002ccfaff0 rbx 0xfffffd807f7d77b8 rdx 0xffff800031d02000 rcx 0x2b7a __ALIGN_SIZE+0x1b7a rax 0xffffffff826848f3 ktrops+0x43 r8 0xfffffd806717ba20 r9 0xfffffd807f7d77b8 r10 0x58e82aada13ef39b r11 0xaada6b9e8165acdf r12 0xffff80002a7f0cf0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000310 __kernel_virt_to_phys+0x310 rip 0xffffffff82684908 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002ccfaf70 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=280838 pid=37382 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=83, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a8b82c0,0xffff80002a7f07e0 process=0xffff80002a89de88 user=0xffff80002ccf6000, vmspace=0xfffffd806c0a2448 estcpu=33, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 37382 64565 88928 0 2 0 syz-executor 37382 429199 88928 0 3 0x4000080 fsleep syz-executor *37382 280838 88928 0 7 0x4000000 syz-executor 9637 218095 9194 0 2 0 syz-executor 9637 171642 9194 0 2 0x4000000 syz-executor 32604 327147 57045 0 2 0 syz-executor 32604 35553 57045 0 3 0x4000080 fsleep syz-executor 32604 136233 57045 0 3 0x4000080 fsleep syz-executor 61862 39130 88191 0 2 0 syz-executor 61862 475135 88191 0 3 0x4000080 fsleep syz-executor 41510 303323 48561 -1 3 0x90 nanoslp syz-executor 41510 233606 48561 -1 3 0x4000090 fsleep syz-executor 41510 15965 48561 -1 3 0x4000090 fsleep syz-executor 16465 483244 40464 0 3 0x80 nanoslp syz-executor 16465 332359 40464 0 3 0x4000080 fsleep syz-executor 16465 187428 40464 0 2 0x4000000 syz-executor 16465 313085 40464 0 3 0x4000080 fsleep syz-executor 12478 425426 0 0 3 0x14280 nfsidl nfsio 92108 188185 0 0 3 0x14280 nfsidl nfsio 35032 400956 0 0 3 0x14280 nfsidl nfsio 58023 467359 0 0 3 0x14280 nfsidl nfsio 96805 258135 0 0 3 0x14280 nfsidl nfsio 72798 356692 0 0 3 0x14280 nfsidl nfsio 8274 359318 0 0 3 0x14280 nfsidl nfsio 37045 452522 0 0 3 0x14280 nfsidl nfsio 16134 48216 0 0 3 0x14280 nfsidl nfsio 1466 36151 0 0 3 0x14280 nfsidl nfsio 72703 2404 0 0 3 0x14280 nfsidl nfsio 68515 275641 0 0 3 0x14280 nfsidl nfsio 15689 456316 0 0 3 0x14280 nfsidl nfsio 41153 211477 0 0 3 0x14280 nfsidl nfsio 70957 225605 0 0 3 0x14280 nfsidl nfsio 24418 214789 0 0 3 0x14280 nfsidl nfsio 80789 374759 0 0 3 0x14280 nfsidl nfsio 2549 29249 0 0 3 0x14280 nfsidl nfsio 14150 335680 0 0 3 0x14280 nfsidl nfsio 80044 447000 0 0 3 0x14280 nfsidl nfsio 25536 145213 43459 0 2 0x2 syz-executor 40464 412337 43459 0 2 0x482 syz-executor 21263 342727 0 0 3 0x14200 bored sosplice 88191 293831 43459 0 3 0x82 nanoslp syz-executor 9194 269250 43459 0 3 0x82 nanoslp syz-executor 88928 348794 43459 0 3 0x82 nanoslp syz-executor 48561 13075 43459 0 3 0x82 nanoslp syz-executor 57045 519570 43459 0 3 0x82 nanoslp syz-executor 74197 300015 43459 0 2 0x2 syz-executor 43459 284230 36499 0 3 0x82 kqread syz-executor 36499 98877 6437 0 3 0x10008a sigsusp ksh 6437 455065 45441 0 3 0x98 kqread sshd-session 45441 17327 37856 0 3 0x92 kqread sshd-session 97763 190161 1 0 3 0x100083 ttyin getty 37856 30818 1 0 3 0x88 kqread sshd 15479 511967 76572 73 3 0x1100090 kqread syslogd 76572 467372 1 0 3 0x100082 sbwait syslogd 77755 519555 1 0 3 0x100080 kqread resolvd 77215 400999 86419 77 3 0x100092 kqread dhcpleased 89912 8613 86419 77 3 0x100092 kqread dhcpleased 86419 31914 1 0 3 0x80 kqread dhcpleased 80820 179427 0 0 3 0x14200 bored smr 26131 210770 0 0 2 0x14200 zerothread 74119 132577 0 0 3 0x14200 aiodoned aiodoned 38648 367726 0 0 3 0x14200 syncer update 11778 107451 0 0 3 0x14200 cleaner cleaner 83405 324304 0 0 3 0x14200 reaper reaper 51680 124559 0 0 3 0x14200 pgdaemon pagedaemon 74420 131328 0 0 3 0x14200 bored viomb 37092 476013 0 0 3 0x40014200 acpi0 acpi0 33751 129236 0 0 3 0x14200 bored softnet3 54594 342007 0 0 3 0x14200 bored softnet2 76961 177479 0 0 3 0x14200 bored softnet1 23185 195322 0 0 3 0x14200 bored softnet0 45426 275705 0 0 3 0x14200 bored systqmp 91294 503997 0 0 3 0x14200 bored systq 6947 186225 0 0 2 0x40014200 softclock 42622 401019 0 0 3 0x40014200 idle0 1 138342 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 10451 11313K 11510K 166960K 14408 0 pcb 17 18K 23K 166960K 444 0 rtable 167 9K 10K 166960K 613 0 pf 28 13K 17K 166960K 225 0 ifaddr 28 5K 8K 166960K 115 0 ifgroup 38 1K 2K 166960K 195 0 sysctl 4 1K 1K 166960K 8 0 counters 27 17K 18K 166960K 118 0 ioctlops 0 0K 4K 166960K 320 0 iov 0 0K 17K 166960K 151 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1464 92K 92K 166960K 2860 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 6K 166960K 24 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 99 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 97K 166960K 1296 0 sigio 0 0K 0K 166960K 25 0 proc 60 59K 116K 166960K 680 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 121 0 in_multi 59 4K 7K 166960K 155 0 ether_multi 1 0K 0K 166960K 5 0 mrt 0 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 525 0 fusefs mount 1 32K 32K 166960K 1 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 216 150K 179K 166960K 12900 0 UVM aobj 28 2K 2K 166960K 32 0 pinsyscall 37 74K 96K 166960K 2385 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 63 0 NDP 8 0K 2K 166960K 79 0 temp 73 8683K 8749K 166960K 31411 0 kqueue 15 24K 30K 166960K 212 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 120 193 0 190 3 0 3 3 0 8 2 rtentry 136 180 0 115 4 0 4 4 0 8 0 unpcb 144 932 0 916 9 5 4 6 0 8 3 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpqe 32 5 0 5 2 1 1 1 0 8 1 tcpcb 808 400 0 394 13 6 7 7 0 8 6 arp 88 29 0 17 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 1874 0 1864 23 14 9 16 0 8 7 nd6 104 38 0 22 1 0 1 1 0 8 0 pkpcb 40 44 0 44 2 1 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1072 70 0 70 2 1 1 1 0 8 1 pppxif 1384 11 0 11 2 1 1 1 0 8 1 pfstscr 40 5 0 4 1 0 1 1 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 5 0 0 1 0 1 1 0 8 0 pftag 88 3 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 0 1 1 0 8 1 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 2 1 0 1 1 0 8 0 pfstate 344 3 0 2 1 0 1 1 0 8 0 pfrule 1344 7 0 3 1 0 1 1 0 8 0 rttmr 136 4 0 4 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 813 0 514 31 5 26 31 0 8 4 art_table 32 815 0 514 4 0 4 4 0 8 0 art_node 16 175 0 116 1 0 1 1 0 8 0 sysvmsgpl 40 45 0 5 1 0 1 1 0 8 0 semapl 112 95 0 85 1 0 1 1 0 8 0 shmpl 112 29 0 4 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 3900 0 2409 95 0 95 95 0 8 0 ffsino 248 3901 0 2409 95 0 95 95 0 8 0 nchpl 144 5703 0 4019 63 0 63 63 0 8 0 rtmask 32 14 0 14 2 1 1 1 0 8 1 uvmvnodes 80 4938 0 0 101 0 101 101 0 8 0 vnodes 216 4938 0 0 275 0 275 275 0 8 0 namei 1024 19972 0 19970 3 2 1 2 0 8 0 kstatmem 264 116 0 100 3 1 2 3 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 7 0 7 2 1 1 1 0 8 1 scxspl 216 19451 0 19451 11 7 4 8 1 8 4 plimitpl 152 360 0 344 1 0 1 1 0 8 0 sigapl 424 1594 0 1529 9 1 8 8 0 8 0 futexpl 64 18641 0 18633 1 0 1 1 0 8 0 knotepl 120 49371 0 49318 25 13 12 17 0 8 8 kqueuepl 184 569 0 557 5 1 4 4 0 8 3 pipepl 296 284 0 257 8 5 3 8 0 8 0 fdescpl 440 1557 0 1529 5 1 4 5 0 8 0 filepl 120 11093 0 10870 19 5 14 14 0 8 4 lockfpl 104 552 0 546 2 0 2 2 0 8 1 lockfspl 48 159 0 153 1 0 1 1 0 8 0 sessionpl 144 24 0 16 1 0 1 1 0 8 0 pgrppl 48 121 0 105 1 0 1 1 0 8 0 ucredpl 104 1988 0 1976 1 0 1 1 0 8 0 zombiepl 144 1529 0 1529 1 0 1 1 0 8 1 processpl 1112 1594 0 1529 5 0 5 5 0 8 0 procpl 656 3309 0 3233 8 0 8 8 0 8 0 sosppl 168 10 0 10 2 1 1 1 0 8 1 sockpl 528 3135 0 3106 22 12 10 14 0 8 7 mcl64k 65536 37 0 37 2 1 1 1 0 8 1 mcl16k 16384 3 0 3 2 1 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 4 0 4 2 1 1 1 0 8 1 mcl8k 8192 19 0 19 2 1 1 1 0 8 1 mcl4k 4096 3996 0 3945 13 5 8 12 0 8 0 mcl2k 2048 1405 0 1401 4 1 3 3 0 8 2 mtagpl 96 165 0 69 3 0 3 3 0 8 0 mbufpl 256 17081 0 16823 48 29 19 48 0 8 0 bufpl 280 6601 0 374 446 0 446 446 0 8 0 anonpl 24 226783 0 223599 65 20 45 45 0 187 18 amapchunkpl 152 44567 0 44117 48 13 35 35 0 158 16 amappl16 200 4440 0 4406 36 25 11 15 0 8 8 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 152 0 142 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 2202 0 2174 3 1 2 3 0 8 0 amappl11 160 45 0 35 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 252 0 251 1 0 1 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 101 0 91 1 0 1 1 0 8 0 amappl6 120 191 0 187 1 0 1 1 0 8 0 amappl5 112 131 0 124 1 0 1 1 0 8 0 amappl4 104 301 0 285 1 0 1 1 0 8 0 amappl3 96 8774 0 8668 5 1 4 4 0 8 1 amappl2 88 652 0 596 2 0 2 2 0 8 0 amappl1 80 13036 0 12500 14 1 13 13 0 8 1 amappl 88 11939 0 11786 5 0 5 5 0 92 0 dma32768 32768 1 0 1 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 7 0 7 2 1 1 1 0 8 1 dma128 128 254 0 254 2 1 1 1 0 8 1 dma64 64 8 0 8 2 1 1 1 0 8 1 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 31 0 4 1 0 1 1 0 8 0 uaddrrnd 24 1557 0 1529 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1557 0 1529 1 0 1 1 0 8 0 vmmpekpl 168 13115 0 13073 3 0 3 3 0 8 0 vmmpepl 168 101551 0 99742 101 7 94 94 0 357 8 vmsppl 360 1556 0 1529 4 1 3 4 0 8 0 rwobjpl 32 31034 0 25230 48 1 47 47 0 8 0 pdppl 4096 3120 0 3058 104 38 66 82 0 8 4 pvpl 32 658007 0 649456 142 27 115 115 0 265 34 pmappl 216 1556 0 1529 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 329 0 92 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7f0cf0,ffffffffffffffff,0,80000310,fffffd806717ba20,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f0cf0,ffffffffffffffff,0,80000310,fffffd806717ba20,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806717ba20,4,310,0,ffff80002a7f0cf0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806717ba20,4,310,0,ffff80002a7f0cf0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f0cf0,ffff80002ccfb2d0,ffff80002ccfb220) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002ccfb2d0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002ccfb2d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3a45375370, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7f0cf0,ffffffffffffffff,0,80000310,fffffd806717ba20,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f0cf0,ffffffffffffffff,0,80000310,fffffd806717ba20,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806717ba20,4,310,0,ffff80002a7f0cf0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806717ba20,4,310,0,ffff80002a7f0cf0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f0cf0,ffff80002ccfb2d0,ffff80002ccfb220) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002ccfb2d0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002ccfb2d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3a45375370, count: -5