uvm_fault(0xfffffd806bb8ae70, 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 *120662 17925 0 0 0x4000000 0 syz-executor ktrops(ffff80002a81e2b0,ffffffffffffffff,0,a0c7df9f,fffffd807111b370,fffffd8007bfb680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a81e2b0,ffffffffffffffff,0,a0c7df9f,fffffd807111b370,fffffd8007bfb680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807111b370,4,20c7df9f,0,ffff80002a81e2b0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807111b370,4,20c7df9f,0,ffff80002a81e2b0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a81e2b0,ffff80003894d410,ffff80003894d360) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003894d410) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003894d410) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeabee32f9d0, 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(0xfffffd806bb8ae70, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a81e2b0,ffffffffffffffff,0,a0c7df9f,fffffd807111b370,fffffd8007bfb680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a81e2b0,ffffffffffffffff,0,a0c7df9f,fffffd807111b370,fffffd8007bfb680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807111b370,4,20c7df9f,0,ffff80002a81e2b0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807111b370,4,20c7df9f,0,ffff80002a81e2b0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a81e2b0,ffff80003894d410,ffff80003894d360) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003894d410) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003894d410) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeabee32f9d0, count: -5 ddb> show registers rdi 0xffff80002a81e2b0 rsi 0xffffffffffffffff rbp 0xffff80003894d130 rbx 0xfffffd8007bfb680 rdx 0 rcx 0xa0c7df9f rax 0xffff80002a81e2b0 r8 0xfffffd807111b370 r9 0xfffffd8007bfb680 r10 0x42300f0671fb82e9 r11 0x2947262d7a3afe6b r12 0xffff80002a81e2b0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff8123d678 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003894d0b0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=120662 pid=17925 tcnt=3 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=0xffff80002a81ea78,0xffff80002a81f780 process=0xffff8000ffff31a8 user=0xffff800038948000, vmspace=0xfffffd806bb8ae70 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 40152 292653 82854 0 2 0 syz-executor 40152 368861 82854 0 3 0x4000080 fsleep syz-executor 75110 481207 15009 0 2 0 syz-executor 75110 387291 15009 0 3 0x4000080 fsleep syz-executor 17925 257263 5119 0 2 0 syz-executor *17925 120662 5119 0 7 0x4000000 syz-executor 17925 339659 5119 0 3 0x4000080 fsleep syz-executor 67731 453246 48118 0 2 0xc80 syz-executor 67731 255852 48118 0 3 0x4000080 kqread syz-executor 67731 408296 48118 0 3 0x4000080 fsleep syz-executor 45060 398247 43183 0 2 0xc80 syz-executor 45060 19069 43183 0 3 0x4000080 kqsel syz-executor 45060 388277 43183 0 3 0x4000080 fsleep syz-executor 45060 452123 43183 0 3 0x4000080 fsleep syz-executor 90554 26222 0 0 3 0x14280 nfsidl nfsio 43873 21179 0 0 3 0x14280 nfsidl nfsio 66110 255245 0 0 3 0x14280 nfsidl nfsio 81611 420155 0 0 3 0x14280 nfsidl nfsio 92819 116429 0 0 3 0x14280 nfsidl nfsio 46019 283247 0 0 3 0x14280 nfsidl nfsio 6885 53696 0 0 3 0x14280 nfsidl nfsio 31401 36919 0 0 3 0x14280 nfsidl nfsio 43637 427245 0 0 3 0x14280 nfsidl nfsio 30589 296748 0 0 3 0x14280 nfsidl nfsio 31685 264069 0 0 3 0x14280 nfsidl nfsio 50187 149371 0 0 3 0x14280 nfsidl nfsio 33609 444805 0 0 3 0x14280 nfsidl nfsio 76140 358747 0 0 3 0x14280 nfsidl nfsio 8816 189915 0 0 3 0x14280 nfsidl nfsio 8498 451770 0 0 3 0x14280 nfsidl nfsio 18385 284253 0 0 3 0x14280 nfsidl nfsio 59137 473612 0 0 3 0x14280 nfsidl nfsio 88216 140130 0 0 3 0x14280 nfsidl nfsio 8370 382685 0 0 3 0x14280 nfsidl nfsio 68661 112503 0 0 3 0x14200 bored sosplice 9077 132710 0 0 3 0x14200 acct acct 59683 520623 39692 0 2 0xc82 syz-executor 19670 461084 39692 0 2 0x2 syz-executor 60821 181728 39692 0 2 0xc82 syz-executor 43183 61585 39692 0 2 0xc82 syz-executor 5119 20891 39692 0 2 0xc82 syz-executor 15009 122331 39692 0 2 0xc82 syz-executor 82854 462648 39692 0 2 0xc82 syz-executor 48118 487089 39692 0 2 0xc82 syz-executor 39692 373680 18840 0 2 0x2 syz-executor 18840 303214 34292 0 3 0x10008a sigsusp ksh 34292 375344 30939 0 3 0x98 kqread sshd-session 30939 235882 31792 0 3 0x92 kqread sshd-session 10668 359879 1 0 3 0x100083 ttyopn getty 31792 394735 1 0 3 0x88 kqread sshd 91754 326192 37843 73 3 0x1100090 kqread syslogd 37843 194581 1 0 3 0x100082 sbwait syslogd 10903 297546 1 0 3 0x100080 kqread resolvd 85179 25703 68969 77 3 0x100092 kqread dhcpleased 30877 96898 68969 77 3 0x100092 kqread dhcpleased 68969 184469 1 0 3 0x80 kqread dhcpleased 80308 366247 0 0 3 0x14200 bored smr 31771 189658 0 0 2 0x14200 zerothread 37706 235722 0 0 3 0x14200 aiodoned aiodoned 45116 106304 0 0 3 0x14200 syncer update 27690 125407 0 0 3 0x14200 cleaner cleaner 94397 412861 0 0 3 0x14200 reaper reaper 55224 5542 0 0 3 0x14200 pgdaemon pagedaemon 25512 473825 0 0 3 0x14200 bored viomb 63134 167172 0 0 3 0x40014200 acpi0 acpi0 31068 21395 0 0 3 0x14200 bored softnet7 67723 72970 0 0 3 0x14200 bored softnet6 77131 195245 0 0 3 0x14200 bored softnet5 63557 515266 0 0 3 0x14200 bored softnet4 29963 15908 0 0 3 0x14200 bored softnet3 63057 412454 0 0 3 0x14200 bored softnet2 64069 365079 0 0 3 0x14200 bored softnet1 21998 82976 0 0 3 0x14200 bored softnet0 83917 260951 0 0 3 0x14200 bored systqmp 90287 281820 0 0 3 0x14200 bored systq 511 223883 0 0 3 0x40014200 tmoslp softclock 232 494629 0 0 3 0x40014200 idle0 1 119198 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 10185 11108K 11350K 166960K 11790 0 pcb 82 16K 16K 166960K 145 0 rtable 214 6K 6K 166960K 361 0 pf 30 12K 14K 166960K 50 0 ifaddr 41 7K 7K 166960K 56 0 ifgroup 50 2K 2K 166960K 70 0 sysctl 3 1K 9K 166960K 11 0 counters 32 17K 18K 166960K 44 0 ioctlops 0 0K 4K 166960K 48 0 iov 0 0K 28K 166960K 9 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1339 84K 85K 166960K 1549 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 12 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 335 0 proc 61 59K 124K 166960K 489 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 34 0 in_multi 95 7K 7K 166960K 111 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 384 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 232 151K 160K 166960K 4570 0 UVM aobj 8 2K 2K 166960K 8 0 pinsyscall 38 76K 96K 166960K 1367 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 11 0 NDP 11 0K 2K 166960K 37 0 temp 47 8636K 8700K 166960K 6408 0 kqueue 14 22K 34K 166960K 69 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 120 120 0 117 3 0 3 3 0 8 2 rtentry 136 99 0 5 4 0 4 4 0 8 0 unpcb 144 138 0 122 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 70 0 66 2 0 2 2 0 8 1 arp 96 11 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 0 1 0 1 1 0 8 0 inpcb 328 325 0 253 7 0 7 7 0 8 0 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 104 16 0 1 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 12 0 12 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 438 0 15 28 0 28 28 0 8 0 art_table 40 440 0 15 5 0 5 5 0 8 0 art_node 32 99 0 14 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 2 1 0 1 1 0 8 0 semapl 112 9 0 1 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1973 0 476 95 0 95 95 0 8 0 ffsino 256 1973 0 476 95 0 95 95 0 8 0 nchpl 144 2416 0 735 63 0 63 63 0 8 0 uvmvnodes 80 2157 0 0 45 0 45 45 0 8 0 vnodes 216 2157 0 0 120 0 120 120 0 8 0 namei 1024 7928 0 7928 2 0 2 2 0 8 2 kstatmem 264 42 0 20 2 0 2 2 0 8 0 scxspl 216 9879 0 9879 8 0 8 8 1 8 8 plimitpl 152 229 0 212 1 0 1 1 0 8 0 sigapl 424 642 0 571 9 0 9 9 0 8 0 knotepl 120 15028 0 14980 29 19 10 24 0 8 8 kqueuepl 184 90 0 79 1 0 1 1 0 8 0 pipepl 304 113 0 86 3 0 3 3 0 8 0 fdescpl 448 599 0 570 5 0 5 5 0 8 1 filepl 120 2810 0 2529 10 0 10 10 0 8 0 lockfpl 104 77 0 73 1 0 1 1 0 8 0 lockfspl 48 38 0 35 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 272 0 259 1 0 1 1 0 8 0 zombiepl 144 573 0 571 1 0 1 1 0 8 0 processpl 1152 642 0 571 6 0 6 6 0 8 0 procpl 664 966 0 886 8 0 8 8 0 8 0 sockpl 552 654 0 563 8 0 8 8 0 8 1 mcl64k 65536 85 0 84 1 0 1 1 0 8 0 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 10 0 10 1 0 1 1 0 8 1 mcl8k 8192 6 0 6 1 0 1 1 0 8 1 mcl4k 4096 2687 0 2636 13 0 13 13 0 8 6 mcl2k 2048 549 0 548 5 0 5 5 0 8 4 mtagpl 96 10 0 8 1 0 1 1 0 8 0 mbufpl 256 13848 0 13667 478 457 21 425 0 8 8 bufpl 280 4375 0 118 305 0 305 305 0 8 0 anonpl 24 113126 0 109902 44 0 44 44 0 187 18 amapchunkpl 152 13937 0 13434 26 0 26 26 0 158 5 amappl16 200 1987 0 1957 15 4 11 14 0 8 8 amappl15 192 21 0 21 1 0 1 1 0 8 1 amappl14 184 102 0 92 1 0 1 1 0 8 0 amappl13 176 33 0 33 1 0 1 1 0 8 1 amappl12 168 1208 0 1179 3 0 3 3 0 8 1 amappl11 160 49 0 39 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 0 1 1 0 8 1 amappl9 144 265 0 265 1 0 1 1 0 8 1 amappl8 136 20 0 19 1 0 1 1 0 8 0 amappl7 128 95 0 85 1 0 1 1 0 8 0 amappl6 120 168 0 165 1 0 1 1 0 8 0 amappl5 112 114 0 108 1 0 1 1 0 8 0 amappl4 104 263 0 247 1 0 1 1 0 8 0 amappl3 96 2308 0 2210 3 0 3 3 0 8 0 amappl2 88 826 0 754 2 0 2 2 0 8 0 amappl1 80 8613 0 8065 13 0 13 13 0 8 1 amappl 88 3881 0 3713 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 7 0 7 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 599 0 570 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 599 0 570 1 0 1 1 0 8 0 vmmpekpl 168 6326 0 6300 2 0 2 2 0 8 0 vmmpepl 168 43554 0 41699 90 0 90 90 0 357 5 vmsppl 368 598 0 570 4 0 4 4 0 8 1 rwobjpl 40 16188 0 13165 31 0 31 31 0 8 0 pdppl 4096 1204 0 1140 96 30 66 82 0 8 2 pvpl 32 280735 0 271575 116 0 116 116 0 265 35 pmappl 216 598 0 570 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 835 0 487 22 0 22 22 0 8 7 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a81e2b0,ffffffffffffffff,0,a0c7df9f,fffffd807111b370,fffffd8007bfb680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a81e2b0,ffffffffffffffff,0,a0c7df9f,fffffd807111b370,fffffd8007bfb680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807111b370,4,20c7df9f,0,ffff80002a81e2b0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807111b370,4,20c7df9f,0,ffff80002a81e2b0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a81e2b0,ffff80003894d410,ffff80003894d360) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003894d410) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003894d410) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeabee32f9d0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a81e2b0,ffffffffffffffff,0,a0c7df9f,fffffd807111b370,fffffd8007bfb680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a81e2b0,ffffffffffffffff,0,a0c7df9f,fffffd807111b370,fffffd8007bfb680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807111b370,4,20c7df9f,0,ffff80002a81e2b0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807111b370,4,20c7df9f,0,ffff80002a81e2b0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a81e2b0,ffff80003894d410,ffff80003894d360) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003894d410) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003894d410) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeabee32f9d0, count: -5