uvm_fault(0xfffffd806c089718, 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 *430038 93167 0 0 0x4000000 0 syz-executor ktrops(ffff800035d0f4b0,ffffffffffffffff,0,80000d30,fffffd805f32c1f0,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035d0f4b0,ffffffffffffffff,0,80000d30,fffffd805f32c1f0,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805f32c1f0,4,d30,0,ffff800035d0f4b0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805f32c1f0,4,d30,0,ffff800035d0f4b0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035d0f4b0,ffff80003c955410,ffff80003c955360) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c955410) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c955410) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3f74b478710, 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(0xfffffd806c089718, 0xf, 0, 1) -> e ddb> trace ktrops(ffff800035d0f4b0,ffffffffffffffff,0,80000d30,fffffd805f32c1f0,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035d0f4b0,ffffffffffffffff,0,80000d30,fffffd805f32c1f0,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805f32c1f0,4,d30,0,ffff800035d0f4b0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805f32c1f0,4,d30,0,ffff800035d0f4b0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035d0f4b0,ffff80003c955410,ffff80003c955360) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c955410) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c955410) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3f74b478710, count: -5 ddb> show registers rdi 0xffff80002b8f6000 rsi 0x1504 __ALIGN_SIZE+0x504 rbp 0xffff80003c955130 rbx 0xfffffd807f7d77b8 rdx 0xffff80002b8f6000 rcx 0x1503 __ALIGN_SIZE+0x503 rax 0xffffffff82d55573 ktrops+0x43 r8 0xfffffd805f32c1f0 r9 0xfffffd807f7d77b8 r10 0xec7c9819f7800170 r11 0x39c8105f5145d121 r12 0xffff800035d0f4b0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000d30 __kernel_virt_to_phys+0xd30 rip 0xffffffff82d55588 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9550b0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=430038 pid=93167 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c987738,0xffffffff83921fb8 process=0xffff800035d15e80 user=0xffff80003c950000, vmspace=0xfffffd806c089718 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 93167 134103 35939 0 2 0 syz-executor *93167 430038 35939 0 7 0x4000000 syz-executor 30682 339439 23895 0 3 0x80 nanoslp syz-executor 30682 140612 23895 0 3 0x4000080 fsleep syz-executor 98455 367093 67690 0 2 0 syz-executor 98455 519997 67690 0 3 0x4000080 netcon syz-executor 92609 31308 0 0 3 0x14200 bored sosplice 69012 374021 0 0 3 0x14200 acct acct 78436 86914 0 0 3 0x14280 nfsidl nfsio 46758 497360 0 0 3 0x14280 nfsidl nfsio 93804 405366 0 0 3 0x14280 nfsidl nfsio 24966 130592 0 0 3 0x14280 nfsidl nfsio 19930 146884 0 0 3 0x14280 nfsidl nfsio 94934 394567 0 0 3 0x14280 nfsidl nfsio 66260 219278 0 0 3 0x14280 nfsidl nfsio 27510 306725 0 0 3 0x14280 nfsidl nfsio 77266 257033 0 0 3 0x14280 nfsidl nfsio 14555 408484 0 0 3 0x14280 nfsidl nfsio 43984 302939 0 0 3 0x14280 nfsidl nfsio 47993 69578 0 0 3 0x14280 nfsidl nfsio 79565 422071 0 0 3 0x14280 nfsidl nfsio 68031 406959 0 0 3 0x14280 nfsidl nfsio 91777 489441 0 0 3 0x14280 nfsidl nfsio 83710 136107 0 0 3 0x14280 nfsidl nfsio 21531 184391 0 0 3 0x14280 nfsidl nfsio 20545 38711 0 0 3 0x14280 nfsidl nfsio 53134 344509 0 0 3 0x14280 nfsidl nfsio 17844 196527 0 0 3 0x14280 nfsidl nfsio 4249 353203 15096 0 2 0x10000082 syz-executor 53915 120783 15096 0 3 0x82 wait syz-executor 22600 319669 15096 0 2 0x2 syz-executor 94797 143286 15096 0 3 0x82 wait syz-executor 8210 33896 15096 0 2 0x482 syz-executor 23895 309354 15096 0 2 0x482 syz-executor 35939 224628 15096 0 3 0x82 nanoslp syz-executor 67690 158538 15096 0 2 0x482 syz-executor 15096 95903 84514 0 2 0x2 syz-executor 84514 291860 85804 0 3 0x10008a sigsusp ksh 85804 302411 16613 0 3 0x98 kqread sshd-session 16613 236845 27572 0 3 0x92 kqread sshd-session 1701 386218 1 0 3 0x100083 ttyin getty 27572 44226 1 0 3 0x88 kqread sshd 69726 487803 35681 73 3 0x1100090 kqread syslogd 35681 56797 1 0 3 0x100082 sbwait syslogd 17077 497112 1 0 3 0x100080 kqread resolvd 24374 24693 62961 77 3 0x100092 kqread dhcpleased 71710 406419 62961 77 3 0x100092 kqread dhcpleased 62961 303129 1 0 3 0x80 kqread dhcpleased 32449 374319 0 0 3 0x14200 bored smr 40882 16870 0 0 2 0x14200 zerothread 28704 161547 0 0 3 0x14200 aiodoned aiodoned 40383 30402 0 0 3 0x14200 syncer update 23350 287667 0 0 3 0x14200 cleaner cleaner 62263 102992 0 0 3 0x14200 reaper reaper 52771 454085 0 0 3 0x14200 pgdaemon pagedaemon 29825 281926 0 0 3 0x14200 bored viomb 41769 117927 0 0 3 0x40014200 acpi0 acpi0 10021 117769 0 0 3 0x14200 bored softnet3 47224 351057 0 0 3 0x14200 bored softnet2 41465 68705 0 0 3 0x14200 bored softnet1 5994 216117 0 0 2 0x14200 softnet0 87624 156398 0 0 3 0x14200 bored systqmp 26247 474735 0 0 3 0x14200 bored systq 36049 66280 0 0 3 0x40014200 tmoslp softclock 26037 418606 0 0 3 0x40014200 idle0 1 509505 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 10174 11043K 11529K 166960K 11595 0 pcb 18 12K 12K 166960K 69 0 rtable 259 10K 11K 166960K 421 0 pf 33 13K 18K 166960K 73 0 ifaddr 43 7K 8K 166960K 54 0 ifgroup 50 2K 2K 166960K 67 0 sysctl 1 1K 1K 166960K 1 0 counters 30 17K 17K 166960K 45 0 ioctlops 0 0K 4K 166960K 130 0 iov 0 0K 17K 166960K 19 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1340 84K 85K 166960K 1573 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 6K 10K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 16 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 97K 166960K 402 0 sigio 0 0K 0K 166960K 5 0 proc 60 59K 124K 166960K 491 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 45 0 in_multi 99 7K 7K 166960K 105 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 3 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 385 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 215 151K 165K 166960K 5039 0 UVM aobj 13 2K 2K 166960K 13 0 pinsyscall 37 74K 96K 166960K 1434 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 17 0 NDP 11 0K 2K 166960K 34 0 temp 43 8676K 8756K 166960K 12702 0 kqueue 13 20K 28K 166960K 58 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 57 0 54 1 0 1 1 0 8 0 rtentry 136 124 0 9 5 0 5 5 0 8 0 unpcb 144 391 0 376 8 0 8 8 0 8 7 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 139 0 134 8 0 8 8 0 8 7 arp 88 23 0 2 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 4 0 1 1 0 1 1 0 8 0 inpcb 344 415 0 402 8 0 8 8 0 8 6 nd6 104 25 0 0 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 14 0 14 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pfrktable 1344 4 0 4 1 0 1 1 0 8 1 pfanchor 1288 3 0 1 1 0 1 1 0 8 0 pftag 88 3 0 1 1 0 1 1 0 8 0 pfqueue 320 1 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 4 1 0 1 1 0 8 1 pfstate 344 2 0 2 1 0 1 1 0 8 1 pfrule 1344 4 0 4 1 0 1 1 0 8 1 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 461 0 3 29 0 29 29 0 8 0 art_table 32 462 0 3 4 0 4 4 0 8 0 art_node 16 122 0 20 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 112 11 0 1 1 0 1 1 0 8 0 shmpl 112 10 0 0 1 0 1 1 0 8 0 dirhash 1024 24 0 7 3 0 3 3 0 8 0 dino2pl 256 2058 0 562 95 0 95 95 0 8 0 ffsino 248 2058 0 562 95 0 95 95 0 8 0 nchpl 144 2613 0 928 63 0 63 63 0 8 0 rtmask 32 6 0 6 1 0 1 1 0 8 1 uvmvnodes 80 2262 0 0 47 0 47 47 0 8 0 vnodes 216 2262 0 0 126 0 126 126 0 8 0 namei 1024 8459 0 8459 2 0 2 2 0 8 2 pfiaddrpl 120 1 0 1 1 0 1 1 0 8 1 kstatmem 264 36 0 14 2 0 2 2 0 8 0 scxspl 216 8509 0 8509 8 0 8 8 1 8 8 plimitpl 152 52 0 36 1 0 1 1 0 8 0 sigapl 424 705 0 638 8 0 8 8 0 8 0 futexpl 64 4672 0 4671 1 0 1 1 0 8 0 knotepl 120 13283 0 13236 10 0 10 10 0 8 8 kqueuepl 184 90 0 81 1 0 1 1 0 8 0 pipepl 296 152 0 125 3 0 3 3 0 8 0 fdescpl 440 666 0 638 5 0 5 5 0 8 1 filepl 120 3427 0 3209 13 0 13 13 0 8 5 lockfpl 104 71 0 69 1 0 1 1 0 8 0 lockfspl 48 30 0 28 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 33 0 17 1 0 1 1 0 8 0 ucredpl 104 340 0 327 1 0 1 1 0 8 0 zombiepl 144 642 0 638 1 0 1 1 0 8 0 processpl 1112 705 0 638 5 0 5 5 0 8 0 procpl 656 1095 0 1025 7 0 7 7 0 8 0 sockpl 528 867 0 839 16 0 16 16 0 8 13 mcl64k 65536 10 0 10 1 0 1 1 0 8 1 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 2780 0 2730 14 0 14 14 0 8 7 mcl2k 2048 450 0 449 3 0 3 3 0 8 2 mtagpl 96 21 0 5 1 0 1 1 0 8 0 mbufpl 256 8173 0 7979 76 0 76 76 0 8 61 bufpl 280 2940 0 119 202 0 202 202 0 8 0 anonpl 24 83745 0 80673 45 0 45 45 0 187 23 amapchunkpl 152 14909 0 14469 28 0 28 28 0 158 8 amappl16 200 888 0 861 15 4 11 15 0 8 8 amappl15 192 22 0 22 1 0 1 1 0 8 1 amappl14 184 101 0 91 1 0 1 1 0 8 0 amappl13 176 3 0 3 1 0 1 1 0 8 1 amappl12 168 1281 0 1251 3 0 3 3 0 8 0 amappl11 160 42 0 32 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 0 1 1 0 8 1 amappl9 144 253 0 253 1 0 1 1 0 8 1 amappl8 136 15 0 14 1 0 1 1 0 8 0 amappl7 128 106 0 96 1 0 1 1 0 8 0 amappl6 120 166 0 163 1 0 1 1 0 8 0 amappl5 112 110 0 104 1 0 1 1 0 8 0 amappl4 104 282 0 266 1 0 1 1 0 8 0 amappl3 96 2935 0 2835 4 0 4 4 0 8 0 amappl2 88 612 0 551 2 0 2 2 0 8 0 amappl1 80 8927 0 8387 14 0 14 14 0 8 2 amappl 88 4334 0 4184 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 128 253 0 253 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 12 0 0 1 0 1 1 0 8 0 uaddrrnd 24 666 0 638 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 666 0 638 1 0 1 1 0 8 0 vmmpekpl 168 6728 0 6695 2 0 2 2 0 8 0 vmmpepl 168 45868 0 44088 93 0 93 93 0 357 10 vmsppl 360 665 0 638 4 0 4 4 0 8 1 rwobjpl 32 15634 0 12535 26 0 26 26 0 8 0 pdppl 4096 1338 0 1276 96 30 66 82 0 8 4 pvpl 32 266383 0 258020 113 0 113 113 0 265 36 pmappl 216 665 0 638 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 333 0 30 9 0 9 9 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800035d0f4b0,ffffffffffffffff,0,80000d30,fffffd805f32c1f0,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035d0f4b0,ffffffffffffffff,0,80000d30,fffffd805f32c1f0,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805f32c1f0,4,d30,0,ffff800035d0f4b0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805f32c1f0,4,d30,0,ffff800035d0f4b0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035d0f4b0,ffff80003c955410,ffff80003c955360) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c955410) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c955410) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3f74b478710, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800035d0f4b0,ffffffffffffffff,0,80000d30,fffffd805f32c1f0,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035d0f4b0,ffffffffffffffff,0,80000d30,fffffd805f32c1f0,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805f32c1f0,4,d30,0,ffff800035d0f4b0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805f32c1f0,4,d30,0,ffff800035d0f4b0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035d0f4b0,ffff80003c955410,ffff80003c955360) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c955410) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c955410) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3f74b478710, count: -5