uvm_fault(0xfffffd806c98dd00, 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 *429525 40411 0 0 0x4000000 0 syz-executor ktrops(ffff80002f0fd788,ffffffffffffffff,0,a0c7df9f,fffffd806a598d80,fffffd8007bfd680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002f0fd788,ffffffffffffffff,0,a0c7df9f,fffffd806a598d80,fffffd8007bfd680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a598d80,4,20c7df9f,0,ffff80002f0fd788) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a598d80,4,20c7df9f,0,ffff80002f0fd788) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002f0fd788,ffff80002f0f7890,ffff80002f0f77e0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f0f7890) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f0f7890) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57556741640, 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(0xfffffd806c98dd00, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002f0fd788,ffffffffffffffff,0,a0c7df9f,fffffd806a598d80,fffffd8007bfd680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002f0fd788,ffffffffffffffff,0,a0c7df9f,fffffd806a598d80,fffffd8007bfd680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a598d80,4,20c7df9f,0,ffff80002f0fd788) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a598d80,4,20c7df9f,0,ffff80002f0fd788) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002f0fd788,ffff80002f0f7890,ffff80002f0f77e0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f0f7890) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f0f7890) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57556741640, count: -5 ddb> show registers rdi 0xffff80002a8e6000 rsi 0x873 rbp 0xffff80002f0f75b0 rbx 0xfffffd8007bfd680 rdx 0xffff80002a8e6000 rcx 0x872 rax 0xffffffff8196acb3 ktrops+0x43 r8 0xfffffd806a598d80 r9 0xfffffd8007bfd680 r10 0xea6d153dda448d4b r11 0x75d0463e0914745 r12 0xffff80002f0fd788 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff8196acc8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002f0f7530 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=429525 pid=40411 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=0xffff80002a7bd240,0xffff80002f0fc040 process=0xffff8000ffff8018 user=0xffff80002f0f2000, vmspace=0xfffffd806c98dd00 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 10943 461827 0 0 3 0x14200 acct acct 40411 495788 80180 0 2 0 syz-executor *40411 429525 80180 0 7 0x4000000 syz-executor 15618 121668 44197 0 2 0 syz-executor 15618 287832 44197 0 2 0x4000000 syz-executor 25675 350157 0 0 3 0x14280 nfsidl nfsio 12518 439237 0 0 3 0x14280 nfsidl nfsio 11326 266362 0 0 3 0x14280 nfsidl nfsio 2428 484170 0 0 3 0x14280 nfsidl nfsio 5296 99645 0 0 3 0x14280 nfsidl nfsio 28491 259599 0 0 3 0x14280 nfsidl nfsio 86452 142949 0 0 3 0x14280 nfsidl nfsio 9524 383133 0 0 3 0x14280 nfsidl nfsio 23122 192041 0 0 3 0x14280 nfsidl nfsio 42174 221720 0 0 3 0x14280 nfsidl nfsio 97905 109112 0 0 3 0x14280 nfsidl nfsio 80310 488433 0 0 3 0x14280 nfsidl nfsio 73081 329074 0 0 3 0x14280 nfsidl nfsio 79685 266430 0 0 3 0x14280 nfsidl nfsio 91604 244886 0 0 3 0x14280 nfsidl nfsio 13898 332509 0 0 3 0x14280 nfsidl nfsio 97128 293 0 0 3 0x14280 nfsidl nfsio 43820 216395 0 0 3 0x14280 nfsidl nfsio 47198 438886 0 0 3 0x14280 nfsidl nfsio 52999 210153 0 0 3 0x14280 nfsidl nfsio 33271 138411 1 0 3 0x100083 ttyin getty 65817 104331 3671 0 2 0x2 syz-executor 34746 360952 3671 0 2 0x2 syz-executor 87404 327012 3671 0 2 0x2 syz-executor 44197 519230 3671 0 3 0x82 nanoslp syz-executor 85007 99638 3671 0 3 0x82 nanoslp syz-executor 62662 397690 3671 0 2 0x2 syz-executor 5833 301938 3671 0 2 0x2 syz-executor 80180 186665 3671 0 2 0xc82 syz-executor 3671 176153 2601 0 3 0x82 kqread syz-executor 2601 326476 42211 0 3 0x10008a sigsusp ksh 42211 504812 25888 0 3 0x98 kqread sshd-session 25888 521210 35362 0 3 0x92 kqread sshd-session 35362 3244 1 0 3 0x88 kqread sshd 74293 229007 80726 73 3 0x1100090 kqread syslogd 80726 134269 1 0 3 0x100082 sbwait syslogd 30437 126677 1 0 3 0x100080 kqread resolvd 24222 175004 69127 77 3 0x100092 kqread dhcpleased 18893 230869 69127 77 3 0x100092 kqread dhcpleased 69127 513721 1 0 3 0x80 kqread dhcpleased 57316 417507 0 0 3 0x14200 bored smr 32558 209320 0 0 2 0x14200 zerothread 36421 422025 0 0 3 0x14200 aiodoned aiodoned 96772 452187 0 0 3 0x14200 syncer update 7859 282494 0 0 3 0x14200 cleaner cleaner 92933 422196 0 0 3 0x14200 reaper reaper 81140 361515 0 0 3 0x14200 pgdaemon pagedaemon 65443 204380 0 0 3 0x14200 bored viomb 94688 36085 0 0 3 0x40014200 acpi0 acpi0 22741 273740 0 0 2 0x14200 softnet0 29397 65563 0 0 3 0x14200 bored systqmp 44632 408385 0 0 3 0x14200 bored systq 18671 55707 0 0 3 0x40014200 tmoslp softclock 7443 53729 0 0 3 0x40014200 idle0 1 493753 0 0 3 0x80082 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 11069 12233K 12726K 166960K 13382 0 pcb 20 14K 22K 166960K 296 0 rtable 243 10K 10K 166960K 510 0 pf 32 13K 15K 166960K 67 0 ifaddr 42 7K 8K 166960K 62 0 ifgroup 53 2K 2K 166960K 85 0 sysctl 2 1K 9K 166960K 10 0 counters 33 17K 18K 166960K 57 0 ioctlops 0 0K 4K 166960K 149 0 iov 0 0K 16K 166960K 39 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1460 92K 93K 166960K 2072 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 29 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 13 45K 93K 166960K 718 0 sigio 0 0K 0K 166960K 9 0 proc 60 59K 100K 166960K 567 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 78 0 in_multi 98 7K 7K 166960K 128 0 ether_multi 1 0K 0K 166960K 7 0 mrt 0 0K 0K 166960K 11 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 440 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 194 150K 164K 166960K 8312 0 UVM aobj 25 10K 12K 166960K 28 0 pinsyscall 34 68K 93K 166960K 1820 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 51 0 NDP 11 0K 2K 166960K 39 0 temp 79 8672K 8742K 166960K 26819 0 kqueue 13 20K 28K 166960K 133 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 120 190 0 187 4 3 1 3 0 8 0 rtentry 136 130 0 28 4 0 4 4 0 8 0 unpcb 144 461 0 446 5 3 2 4 0 8 1 syncache 336 8 0 8 2 2 0 1 0 8 0 tcpqe 32 12 0 12 2 2 0 1 0 8 0 tcpcb 736 399 0 392 19 12 7 7 0 8 6 arp 96 19 0 2 1 0 1 1 0 8 0 ipq 40 5 0 1 1 0 1 1 0 8 0 ipqe 40 7 0 3 1 0 1 1 0 8 0 inpcb 328 987 0 970 22 14 8 10 0 8 6 ip6q 72 5 0 2 2 1 1 1 0 8 0 ip6af 40 7 0 4 2 1 1 1 0 8 0 nd6 112 26 0 1 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 21 0 21 2 1 1 1 0 8 1 pppxif 1384 2 0 2 1 1 0 1 0 8 0 pfstscr 40 3 0 2 2 1 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 2 2 1 1 1 0 8 0 pfstate 384 2 0 1 2 1 1 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 256 583 0 141 33 4 29 31 0 8 0 art_table 40 586 0 141 5 0 5 5 0 8 0 art_node 32 127 0 37 1 0 1 1 0 8 0 semapl 112 25 0 15 1 0 1 1 0 8 0 shmpl 112 22 0 2 1 0 1 1 0 8 0 dirhash 1024 32 0 15 3 0 3 3 0 8 0 dino2pl 256 2801 0 1305 95 0 95 95 0 8 0 ffsino 256 2803 0 1305 95 0 95 95 0 8 0 nchpl 144 3789 0 2102 64 0 64 64 0 8 0 rtmask 32 6 0 6 2 1 1 1 0 8 1 vnodes 216 3298 0 0 184 0 184 184 0 8 0 namei 1024 12926 0 12921 4 3 1 2 0 8 0 vcpupl 3904 2 0 0 1 0 1 1 0 8 0 vmpool 808 3 0 1 1 0 1 1 0 8 0 kstatmem 264 46 0 24 2 0 2 2 0 8 0 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 15217 0 15217 9 8 1 8 1 8 1 plimitpl 152 231 0 215 1 0 1 1 0 8 0 sigapl 424 1036 0 977 8 0 8 8 0 8 0 knotepl 120 27635 0 27588 30 19 11 18 0 8 8 kqueuepl 184 249 0 240 3 2 1 3 0 8 0 pipepl 304 202 0 175 5 2 3 5 0 8 0 fdescpl 448 1000 0 975 5 1 4 5 0 8 0 filepl 120 6791 0 6579 20 5 15 15 0 8 6 lockfpl 104 272 0 270 1 0 1 1 0 8 0 lockfspl 48 88 0 86 1 0 1 1 0 8 0 sessionpl 144 24 0 16 1 0 1 1 0 8 0 pgrppl 48 39 0 23 1 0 1 1 0 8 0 ucredpl 104 1082 0 1071 1 0 1 1 0 8 0 zombiepl 144 1106 0 1105 1 0 1 1 0 8 0 processpl 1152 1036 0 977 5 0 5 5 0 8 0 procpl 664 1967 0 1906 7 0 7 7 0 8 0 sosppl 176 3 0 3 1 1 0 1 0 8 0 sockpl 552 1739 0 1704 26 14 12 13 0 8 8 mcl64k 65536 35 0 34 2 1 1 1 0 8 0 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 15 0 15 3 2 1 1 0 8 1 mcl4k 4096 3237 0 3183 16 8 8 14 0 8 1 mcl2k 2048 1230 0 1227 4 3 1 3 0 8 0 mtagpl 96 24 0 6 1 0 1 1 0 8 0 mbufpl 256 10356 0 10149 17 2 15 16 0 8 0 bufpl 280 5873 0 123 411 0 411 411 0 8 0 anonpl 24 156169 0 153340 74 38 36 61 0 187 2 amapchunkpl 152 26212 0 25858 40 14 26 29 0 158 7 amappl16 200 2900 0 2871 33 28 5 23 0 8 1 amappl15 192 44 0 44 1 1 0 1 0 8 0 amappl14 184 3 0 3 1 1 0 1 0 8 0 amappl13 176 411 0 410 1 0 1 1 0 8 0 amappl12 168 1348 0 1314 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 41 0 31 1 0 1 1 0 8 0 amappl9 144 272 0 272 1 1 0 1 0 8 0 amappl8 136 18 0 17 1 0 1 1 0 8 0 amappl7 128 81 0 80 1 0 1 1 0 8 0 amappl6 120 306 0 295 1 0 1 1 0 8 0 amappl5 112 67 0 58 1 0 1 1 0 8 0 amappl4 104 395 0 370 1 0 1 1 0 8 0 amappl3 96 4583 0 4517 3 0 3 3 0 8 0 amappl2 88 1128 0 1063 2 0 2 2 0 8 0 amappl1 80 11672 0 11154 14 2 12 13 0 8 0 amappl 88 7479 0 7353 5 0 5 5 0 92 0 uvmvnodes 80 114 0 0 3 0 3 3 0 8 0 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 128 255 0 255 2 1 1 1 0 8 1 dma64 64 7 0 7 1 1 0 1 0 8 0 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 27 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1000 0 975 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1000 0 975 1 0 1 1 0 8 0 vmmpekpl 168 9501 0 9467 2 0 2 2 0 8 0 vmmpepl 168 69290 0 67736 105 16 89 98 0 357 2 vmsppl 368 999 0 975 4 1 3 4 0 8 0 rwobjpl 40 20483 0 19550 15 2 13 14 0 8 0 pdppl 4096 2013 0 1954 106 37 69 81 0 8 10 pvpl 32 436601 0 429076 164 61 103 144 0 265 6 pmappl 216 1002 0 976 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 416 0 78 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002f0fd788,ffffffffffffffff,0,a0c7df9f,fffffd806a598d80,fffffd8007bfd680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002f0fd788,ffffffffffffffff,0,a0c7df9f,fffffd806a598d80,fffffd8007bfd680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a598d80,4,20c7df9f,0,ffff80002f0fd788) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a598d80,4,20c7df9f,0,ffff80002f0fd788) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002f0fd788,ffff80002f0f7890,ffff80002f0f77e0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f0f7890) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f0f7890) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57556741640, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002f0fd788,ffffffffffffffff,0,a0c7df9f,fffffd806a598d80,fffffd8007bfd680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002f0fd788,ffffffffffffffff,0,a0c7df9f,fffffd806a598d80,fffffd8007bfd680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a598d80,4,20c7df9f,0,ffff80002f0fd788) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a598d80,4,20c7df9f,0,ffff80002f0fd788) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002f0fd788,ffff80002f0f7890,ffff80002f0f77e0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f0f7890) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f0f7890) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57556741640, count: -5