uvm_fault(0xfffffd806d3e12f8, 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 *114852 92759 0 0 0x4000000 0 syz-executor ktrops(ffff80003c967788,ffffffffffffffff,0,a0c7df9f,fffffd8069abd2a8,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c967788,ffffffffffffffff,0,a0c7df9f,fffffd8069abd2a8,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8069abd2a8,4,20c7df9f,0,ffff80003c967788) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8069abd2a8,4,20c7df9f,0,ffff80003c967788) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c967788,ffff80002a8a9600,ffff80002a8a9550) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8a9600) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8a9600) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d28e6f2200, 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(0xfffffd806d3e12f8, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003c967788,ffffffffffffffff,0,a0c7df9f,fffffd8069abd2a8,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c967788,ffffffffffffffff,0,a0c7df9f,fffffd8069abd2a8,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8069abd2a8,4,20c7df9f,0,ffff80003c967788) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8069abd2a8,4,20c7df9f,0,ffff80003c967788) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c967788,ffff80002a8a9600,ffff80002a8a9550) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8a9600) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8a9600) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d28e6f2200, count: -5 ddb> show registers rdi 0xffff80002a8f4000 rsi 0x813 rbp 0xffff80002a8a9320 rbx 0xfffffd8007bfb618 rdx 0xffff80002a8f4000 rcx 0x812 rax 0xffffffff817639e3 ktrops+0x43 r8 0xfffffd8069abd2a8 r9 0xfffffd8007bfb618 r10 0xf5d4a33fea302200 r11 0x2195c428f597c874 r12 0xffff80003c967788 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff817639f8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a8a92a0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=114852 pid=92759 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=81, usrpri=81, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c966a90,0xffff800034119cd0 process=0xffff8000ffffb198 user=0xffff80002a8a4000, vmspace=0xfffffd806d3e12f8 estcpu=31, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 47945 196823 83370 0 2 0 syz-executor 47945 485849 83370 0 3 0x4000080 fsleep syz-executor 58883 222623 39549 0 2 0 syz-executor 58883 166831 39549 0 3 0x4000080 fsleep syz-executor 58883 283248 39549 0 3 0x4000080 fsleep syz-executor 80971 453174 0 0 3 0x14200 acct acct 28674 77480 55779 0 2 0 syz-executor 28674 202304 55779 0 2 0x4000000 syz-executor 60176 111259 98566 -1 2 0x10 syz-executor 60176 147800 98566 -1 2 0x4000010 syz-executor 92759 310139 47606 0 2 0 syz-executor *92759 114852 47606 0 7 0x4000000 syz-executor 92759 274567 47606 0 3 0x4000080 fsleep syz-executor 92759 433783 47606 0 2 0x4000000 syz-executor 19740 285825 64527 0 2 0x2 syz-executor 83370 383302 64527 0 3 0x82 nanoslp syz-executor 11239 320329 64527 0 2 0x2 syz-executor 39549 80664 64527 0 3 0x82 nanoslp syz-executor 40356 75893 0 0 3 0x14280 nfsidl nfsio 19884 401495 0 0 3 0x14280 nfsidl nfsio 61009 211371 0 0 3 0x14280 nfsidl nfsio 66426 276157 0 0 3 0x14280 nfsidl nfsio 74489 29653 0 0 3 0x14280 nfsidl nfsio 85889 175611 0 0 3 0x14280 nfsidl nfsio 64165 83153 0 0 3 0x14280 nfsidl nfsio 84403 357337 0 0 3 0x14280 nfsidl nfsio 66150 435793 0 0 3 0x14280 nfsidl nfsio 62462 279783 0 0 3 0x14280 nfsidl nfsio 84433 520552 0 0 3 0x14280 nfsidl nfsio 32537 356932 0 0 3 0x14280 nfsidl nfsio 35665 4654 0 0 3 0x14280 nfsidl nfsio 30137 20068 0 0 3 0x14280 nfsidl nfsio 3973 388065 0 0 3 0x14280 nfsidl nfsio 3060 430907 0 0 3 0x14280 nfsidl nfsio 56159 491240 0 0 3 0x14280 nfsidl nfsio 2213 444632 0 0 3 0x14280 nfsidl nfsio 71342 335094 0 0 3 0x14280 nfsidl nfsio 70557 471490 0 0 3 0x14280 nfsidl nfsio 24683 240372 1 0 3 0x100083 ttyopn getty 98566 238521 64527 0 3 0x82 nanoslp syz-executor 29363 197019 64527 0 2 0x2 syz-executor 55779 182907 64527 0 3 0x82 nanoslp syz-executor 47606 398313 64527 0 3 0x82 nanoslp syz-executor 64527 229885 91300 0 3 0x82 kqread syz-executor 91300 343717 43184 0 3 0x10008a sigsusp ksh 43184 392336 34346 0 3 0x98 kqread sshd-session 34346 100447 16179 0 3 0x92 kqread sshd-session 16179 319974 1 0 3 0x88 kqread sshd 40054 485419 96459 73 3 0x1100090 kqread syslogd 96459 302398 1 0 3 0x100082 sbwait syslogd 16215 405760 1 0 3 0x100080 kqread resolvd 15714 266216 13918 77 3 0x100092 kqread dhcpleased 25215 417519 13918 77 3 0x100092 kqread dhcpleased 13918 284751 1 0 3 0x80 kqread dhcpleased 70303 234452 0 0 3 0x14200 bored smr 45245 125134 0 0 2 0x14200 zerothread 9117 439744 0 0 3 0x14200 aiodoned aiodoned 54474 143913 0 0 3 0x14200 syncer update 95254 428331 0 0 3 0x14200 cleaner cleaner 47208 145194 0 0 3 0x14200 reaper reaper 28024 40480 0 0 3 0x14200 pgdaemon pagedaemon 76391 444993 0 0 3 0x14200 bored viomb 80287 20507 0 0 3 0x40014200 acpi0 acpi0 12170 62623 0 0 3 0x14200 bored softnet0 12276 24645 0 0 3 0x14200 bored systqmp 6838 431999 0 0 3 0x14200 bored systq 32494 166712 0 0 3 0x40014200 tmoslp softclock 19403 382046 0 0 3 0x40014200 idle0 1 499619 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 10210 11060K 11661K 166960K 13828 0 pcb 17 16K 18K 166960K 657 0 rtable 242 11K 11K 166960K 757 0 pf 32 13K 16K 166960K 194 0 ifaddr 39 7K 8K 166960K 154 0 ifgroup 55 2K 2K 166960K 265 0 sysctl 4 1K 9K 166960K 89 0 counters 32 17K 18K 166960K 133 0 ioctlops 0 0K 4K 166960K 433 0 iov 0 0K 28K 166960K 140 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1430 90K 90K 166960K 3040 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 34 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 116 0 dirhash 12 2K 2K 166960K 57 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 232K 166960K 2076 0 sigio 0 0K 0K 166960K 171 0 proc 61 59K 91K 166960K 789 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 352 0 in_multi 77 5K 7K 166960K 226 0 ether_multi 1 0K 0K 166960K 27 0 mrt 1 0K 0K 166960K 24 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 765 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 226 160K 179K 166960K 20491 0 UVM aobj 130 7K 7K 166960K 135 0 pinsyscall 36 72K 94K 166960K 3230 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 142 0 NDP 11 0K 2K 166960K 100 0 temp 80 8656K 8723K 166960K 97535 0 kqueue 15 22K 33K 166960K 415 0 SYN cache 2 8K 16K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 334 0 331 4 2 2 3 0 8 1 rtentry 136 223 0 133 4 0 4 4 0 8 0 unpcb 144 1470 0 1451 7 1 6 6 0 8 5 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 951 0 945 10 3 7 7 0 8 6 arp 96 34 0 14 1 0 1 1 0 8 0 ipq 40 9 0 7 1 0 1 1 0 8 0 ipqe 40 12 0 10 1 0 1 1 0 8 0 inpcb 328 2289 0 2277 16 6 10 12 0 8 8 ip6q 72 8 0 6 2 1 1 1 0 8 0 ip6af 40 12 0 11 2 1 1 1 0 8 0 nd6 112 40 0 21 1 0 1 1 0 8 0 pkpcb 40 17 0 17 2 1 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 72 0 72 1 0 1 1 0 8 1 pppxif 1384 14 0 14 1 0 1 1 0 8 1 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 rttmr 136 5 0 5 1 0 1 1 0 8 1 art_heap8 4096 6 0 1 5 0 5 5 0 8 0 art_heap4 256 1108 0 731 30 1 29 29 0 8 3 art_table 40 1114 0 732 5 0 5 5 0 8 0 art_node 32 217 0 139 1 0 1 1 0 8 0 sysvmsgpl 40 143 0 140 1 0 1 1 0 8 0 semupl 112 2 0 2 2 1 1 1 0 8 1 semapl 112 111 0 101 1 0 1 1 0 8 0 shmpl 112 132 0 5 4 0 4 4 0 8 0 dirhash 1024 48 0 31 3 0 3 3 0 8 0 dino2pl 256 5258 0 3760 95 0 95 95 0 8 0 ffsino 256 5258 0 3760 95 0 95 95 0 8 0 nchpl 144 8052 0 6349 64 0 64 64 0 8 0 rtmask 32 14 0 14 2 1 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 28426 0 28424 4 2 2 2 0 8 1 kstatmem 264 152 0 130 2 0 2 2 0 8 0 scsiplug 72 5 0 5 2 1 1 1 0 8 1 scxspl 216 23676 0 23676 10 2 8 8 1 8 8 plimitpl 152 570 0 554 1 0 1 1 0 8 0 sigapl 424 2362 0 2301 8 0 8 8 0 8 0 knotepl 120 374058 0 374008 48 36 12 17 0 8 8 kqueuepl 184 781 0 768 4 0 4 4 0 8 3 pipepl 304 418 0 391 8 0 8 8 0 8 5 fdescpl 448 2321 0 2294 5 1 4 5 0 8 0 filepl 120 15759 0 15542 13 1 12 12 0 8 4 lockfpl 104 1250 0 1247 2 0 2 2 0 8 1 lockfspl 48 390 0 387 1 0 1 1 0 8 0 sessionpl 144 27 0 19 1 0 1 1 0 8 0 pgrppl 48 86 0 70 1 0 1 1 0 8 0 ucredpl 104 3012 0 2999 1 0 1 1 0 8 0 zombiepl 144 3305 0 3305 1 0 1 1 0 8 1 processpl 1152 2362 0 2301 5 0 5 5 0 8 0 procpl 664 5472 0 5403 8 0 8 8 0 8 0 sosppl 176 11 0 11 2 1 1 1 0 8 1 sockpl 552 4237 0 4203 18 7 11 12 0 8 8 mcl64k 65536 285 0 285 4 1 3 3 0 8 3 mcl16k 16384 4 0 4 1 0 1 1 0 8 1 mcl12k 12288 4 0 4 1 0 1 1 0 8 1 mcl8k 8192 34 0 33 2 1 1 1 0 8 0 mcl4k 4096 5089 0 5036 14 6 8 14 0 8 0 mcl2k2 2112 5 0 5 1 0 1 1 0 8 1 mcl2k 2048 3228 0 3222 8 3 5 5 0 8 3 mtagpl 96 9 0 5 2 1 1 1 0 8 0 mbufpl 256 26292 0 26180 42 26 16 42 0 8 3 bufpl 280 6295 0 132 441 0 441 441 0 8 0 anonpl 24 304641 0 296275 89 11 78 78 0 187 0 amapchunkpl 152 69056 0 68533 42 4 38 38 0 158 13 amappl16 200 4981 0 4718 35 8 27 27 0 8 0 amappl15 192 78 0 77 1 0 1 1 0 8 0 amappl14 184 6 0 6 1 1 0 1 0 8 0 amappl13 176 451 0 450 1 0 1 1 0 8 0 amappl12 168 2702 0 2666 2 0 2 2 0 8 0 amappl11 160 42 0 42 1 1 0 1 0 8 0 amappl10 152 47 0 37 1 0 1 1 0 8 0 amappl9 144 271 0 271 1 1 0 1 0 8 0 amappl8 136 21 0 19 1 0 1 1 0 8 0 amappl7 128 97 0 95 1 0 1 1 0 8 0 amappl6 120 358 0 346 1 0 1 1 0 8 0 amappl5 112 68 0 60 1 0 1 1 0 8 0 amappl4 104 413 0 389 1 0 1 1 0 8 0 amappl3 96 12194 0 12118 3 0 3 3 0 8 0 amappl2 88 2428 0 2358 2 0 2 2 0 8 0 amappl1 80 17295 0 16766 13 1 12 13 0 8 0 amappl 88 19358 0 19203 6 1 5 5 0 92 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 dma32768 32768 2 0 2 1 1 0 1 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 7 0 7 2 1 1 1 0 8 1 dma128 128 253 0 253 1 1 0 1 0 8 0 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 72 134 0 5 3 0 3 3 0 8 0 uaddrrnd 24 2321 0 2294 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2321 0 2294 1 0 1 1 0 8 0 vmmpekpl 168 19154 0 19104 3 0 3 3 0 8 0 vmmpepl 168 147930 0 146015 105 3 102 102 0 357 2 vmsppl 368 2320 0 2294 4 1 3 4 0 8 0 rwobjpl 40 42528 0 35410 75 0 75 75 0 8 1 pdppl 4096 4648 0 4588 118 52 66 78 0 8 6 pvpl 32 937515 0 924112 168 8 160 160 0 265 8 pmappl 216 2320 0 2294 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 450 0 103 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003c967788,ffffffffffffffff,0,a0c7df9f,fffffd8069abd2a8,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c967788,ffffffffffffffff,0,a0c7df9f,fffffd8069abd2a8,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8069abd2a8,4,20c7df9f,0,ffff80003c967788) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8069abd2a8,4,20c7df9f,0,ffff80003c967788) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c967788,ffff80002a8a9600,ffff80002a8a9550) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8a9600) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8a9600) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d28e6f2200, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003c967788,ffffffffffffffff,0,a0c7df9f,fffffd8069abd2a8,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c967788,ffffffffffffffff,0,a0c7df9f,fffffd8069abd2a8,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8069abd2a8,4,20c7df9f,0,ffff80003c967788) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8069abd2a8,4,20c7df9f,0,ffff80003c967788) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c967788,ffff80002a8a9600,ffff80002a8a9550) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002a8a9600) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8a9600) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d28e6f2200, count: -5