uvm_fault(0xfffffd80781ca010, 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 *288151 13004 0 0 0x4000000 0 syz-executor ktrops(ffff800039161a18,ffffffffffffffff,0,a0c7df9b,fffffd80770e7ce0,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800039161a18,ffffffffffffffff,0,a0c7df9b,fffffd80770e7ce0,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80770e7ce0,4,20c7df9b,0,ffff800039161a18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80770e7ce0,4,20c7df9b,0,ffff800039161a18) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800039161a18,ffff80003c9a9150,ffff80003c9a90a0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9a9150) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9a9150) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xba1b303aa50, 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(0xfffffd80781ca010, 0xf, 0, 1) -> e ddb> trace ktrops(ffff800039161a18,ffffffffffffffff,0,a0c7df9b,fffffd80770e7ce0,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800039161a18,ffffffffffffffff,0,a0c7df9b,fffffd80770e7ce0,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80770e7ce0,4,20c7df9b,0,ffff800039161a18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80770e7ce0,4,20c7df9b,0,ffff800039161a18) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800039161a18,ffff80003c9a9150,ffff80003c9a90a0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9a9150) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9a9150) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xba1b303aa50, count: -5 ddb> show registers rdi 0xffff800039161a18 rsi 0xffffffffffffffff rbp 0xffff80003c9a8e70 rbx 0xfffffd8007bfb6e8 rdx 0 rcx 0xa0c7df9b rax 0xffff800039161a18 r8 0xfffffd80770e7ce0 r9 0xfffffd8007bfb6e8 r10 0xc161e8fe44b0a688 r11 0x9c8bc3a389b42e73 r12 0xffff800039161a18 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9b rip 0xffffffff82f08788 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9a8df0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=288151 pid=13004 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800039160028,0xffff80003c9e5798 process=0xffff80002cd2e938 user=0xffff80003c9a4000, vmspace=0xfffffd80781ca010 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 86036 139063 69086 0 2 0 syz-executor 86036 244955 69086 0 3 0x4000080 fsleep syz-executor 13004 348024 79283 0 2 0x1 syz-executor *13004 288151 79283 0 7 0x4000000 syz-executor 62664 133151 85634 0 3 0x80 nanoslp syz-executor 62664 297815 85634 0 3 0x4000080 kqread syz-executor 62664 63622 85634 0 3 0x4000080 fsleep syz-executor 80687 434042 48202 0 3 0x80 nanoslp syz-executor 80687 28025 48202 0 3 0x4000080 fsleep syz-executor 80687 370160 48202 0 3 0x4000080 fsleep syz-executor 69149 410192 0 0 3 0x14200 bored sosplice 79283 409837 8304 0 3 0x82 nanoslp syz-executor 48202 244297 8304 0 3 0x82 nanoslp syz-executor 98886 82880 8304 0 2 0x2 syz-executor 97955 294635 8304 0 2 0x2 syz-executor 69086 193788 8304 0 3 0x82 nanoslp syz-executor 76615 287686 8304 0 2 0x2 syz-executor 85634 123157 8304 0 3 0x82 nanoslp syz-executor 78790 177443 8304 0 2 0x2 syz-executor 8304 196879 63459 0 2 0x2 syz-executor 63459 61293 56758 0 3 0x10008a sigsusp ksh 56758 78653 10180 0 3 0x98 kqread sshd-session 10180 19012 80353 0 3 0x92 kqread sshd-session 29092 104768 1 0 3 0x100083 ttyin getty 80353 414072 1 0 3 0x88 kqread sshd 31770 492889 90239 73 3 0x1100090 kqread syslogd 90239 422677 1 0 3 0x100082 sbwait syslogd 60005 451299 1 0 3 0x100080 kqread resolvd 26701 500131 87284 77 3 0x100092 kqread dhcpleased 50014 402298 87284 77 3 0x100092 kqread dhcpleased 87284 420903 1 0 3 0x80 kqread dhcpleased 47196 391447 0 0 3 0x14200 bored smr 60599 348411 0 0 2 0x14200 zerothread 89962 114848 0 0 3 0x14200 aiodoned aiodoned 84275 478426 0 0 3 0x14200 syncer update 45698 370101 0 0 3 0x14200 cleaner cleaner 64111 176741 0 0 3 0x14200 reaper reaper 15766 222618 0 0 3 0x14200 pgdaemon pagedaemon 8469 63702 0 0 3 0x14200 bored viomb 4578 390864 0 0 3 0x40014200 acpi0 acpi0 49034 433154 0 0 3 0x14200 bored softnet7 41560 268121 0 0 3 0x14200 bored softnet6 34957 496810 0 0 3 0x14200 bored softnet5 74481 387170 0 0 3 0x14200 bored softnet4 58134 60096 0 0 3 0x14200 bored softnet3 96683 260262 0 0 3 0x14200 bored softnet2 3045 151422 0 0 3 0x14200 bored softnet1 83154 287397 0 0 2 0x14200 softnet0 95930 83552 0 0 3 0x14200 bored systqmp 61587 344823 0 0 3 0x14200 bored systq 92206 506237 0 0 3 0x40014200 tmoslp softclock 63657 146299 0 0 3 0x40014200 idle0 1 371406 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 10179 11042K 11317K 166960K 11458 0 pcb 17 13K 14K 166960K 89 0 rtable 180 8K 8K 166960K 304 0 pf 32 13K 16K 166960K 61 0 ifaddr 35 6K 7K 166960K 58 0 ifgroup 47 2K 2K 166960K 76 0 sysctl 1 1K 9K 166960K 5 0 counters 31 17K 18K 166960K 47 0 ioctlops 0 0K 4K 166960K 127 0 iov 0 0K 12K 166960K 11 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1338 84K 85K 166960K 1490 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 41 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 14 49K 240K 166960K 326 0 sigio 0 0K 0K 166960K 36 0 proc 60 59K 91K 166960K 490 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 1 0K 0K 166960K 35 0 in_multi 77 5K 7K 166960K 104 0 ether_multi 1 0K 0K 166960K 2 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 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 489 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 199 150K 164K 166960K 4315 0 UVM aobj 9 2K 4K 166960K 11 0 pinsyscall 35 70K 96K 166960K 1322 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 4 0 NDP 10 0K 2K 166960K 37 0 temp 43 8635K 8700K 166960K 9969 0 kqueue 14 22K 30K 166960K 51 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 56 0 53 1 0 1 1 0 8 0 rtentry 136 101 0 27 4 0 4 4 0 8 0 unpcb 144 167 0 152 2 1 1 2 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 91 0 87 5 0 5 5 0 8 4 arp 88 12 0 3 1 0 1 1 0 8 0 inpcb 328 320 0 311 7 2 5 7 0 8 4 nd6 104 17 0 5 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 13 0 13 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pffrag 232 4 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 4 0 0 1 0 1 1 0 8 0 pfrktable 1344 3 0 1 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 3 0 1 1 0 1 1 0 8 0 pfstate 384 2 0 1 1 0 1 1 0 8 0 pfrule 1344 1 0 0 1 0 1 1 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 477 0 126 28 3 25 28 0 8 0 art_table 40 479 0 126 5 0 5 5 0 8 0 art_node 32 101 0 35 1 0 1 1 0 8 0 sysvmsgpl 40 35 0 2 1 0 1 1 0 8 0 semapl 112 38 0 33 1 0 1 1 0 8 0 shmpl 112 8 0 2 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1868 0 369 95 0 95 95 0 8 0 ffsino 256 1868 0 369 95 0 95 95 0 8 0 nchpl 144 2280 0 602 63 0 63 63 0 8 0 rtmask 32 5 0 5 2 1 1 1 0 8 1 uvmvnodes 80 2023 0 0 42 0 42 42 0 8 0 vnodes 216 2023 0 0 113 0 113 113 0 8 0 namei 1024 7555 0 7553 3 2 1 2 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 42 0 22 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 7632 0 7632 8 7 1 8 1 8 1 plimitpl 152 154 0 138 1 0 1 1 0 8 0 sigapl 424 583 0 536 7 1 6 7 0 8 0 knotepl 120 10231 0 10182 22 13 9 16 0 8 7 kqueuepl 184 83 0 72 1 0 1 1 0 8 0 pipepl 304 182 0 155 8 5 3 8 0 8 0 fdescpl 448 561 0 535 5 1 4 5 0 8 0 filepl 120 2941 0 2730 12 2 10 12 0 8 3 lockfpl 104 91 0 89 1 0 1 1 0 8 0 lockfspl 48 41 0 39 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 104 331 0 320 1 0 1 1 0 8 0 zombiepl 144 564 0 564 2 1 1 1 0 8 1 processpl 1168 583 0 536 5 1 4 5 0 8 0 procpl 664 877 0 824 7 0 7 7 0 8 1 sosppl 168 2 0 2 1 1 0 1 0 8 0 sockpl 552 553 0 526 8 2 6 8 0 8 3 mcl64k 65536 7 0 7 2 1 1 1 0 8 1 mcl16k 16384 2 0 2 1 1 0 1 0 8 0 mcl8k 8192 37 0 37 1 1 0 1 0 8 0 mcl4k 4096 2679 0 2626 15 8 7 15 0 8 0 mcl2k 2048 544 0 539 3 1 2 2 0 8 1 mtagpl 96 5 0 4 1 0 1 1 0 8 0 mbufpl 256 6258 0 6064 19 1 18 18 0 8 4 bufpl 280 3096 0 118 213 0 213 213 0 8 0 anonpl 24 121626 0 118711 45 22 23 45 0 187 1 amapchunkpl 152 13482 0 13086 26 3 23 26 0 158 3 amappl16 200 2259 0 2235 11 9 2 11 0 8 0 amappl15 192 12 0 12 1 1 0 1 0 8 0 amappl14 184 104 0 94 1 0 1 1 0 8 0 amappl13 176 31 0 31 1 1 0 1 0 8 0 amappl12 168 1169 0 1143 2 0 2 2 0 8 0 amappl11 160 119 0 109 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 242 0 242 1 1 0 1 0 8 0 amappl8 136 25 0 24 1 0 1 1 0 8 0 amappl7 128 98 0 88 1 0 1 1 0 8 0 amappl6 120 171 0 167 1 0 1 1 0 8 0 amappl5 112 133 0 127 1 0 1 1 0 8 0 amappl4 104 270 0 253 1 0 1 1 0 8 0 amappl3 96 2319 0 2230 4 0 4 4 0 8 1 amappl2 88 602 0 547 2 0 2 2 0 8 0 amappl1 80 8546 0 8019 13 1 12 13 0 8 0 amappl 88 3658 0 3522 5 0 5 5 0 92 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 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 1 1 0 1 0 8 0 dma64 64 6 0 6 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 10 0 2 1 0 1 1 0 8 0 uaddrrnd 24 561 0 535 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 561 0 535 1 0 1 1 0 8 0 vmmpekpl 168 6078 0 6041 2 0 2 2 0 8 0 vmmpepl 168 41887 0 40227 91 6 85 91 0 357 3 vmsppl 368 560 0 535 4 1 3 4 0 8 0 rwobjpl 40 16112 0 13276 31 1 30 31 0 8 0 pdppl 4096 1128 0 1070 96 30 66 82 0 8 8 pvpl 32 271575 0 264033 112 38 74 112 0 265 1 pmappl 216 560 0 535 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 387 0 54 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800039161a18,ffffffffffffffff,0,a0c7df9b,fffffd80770e7ce0,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800039161a18,ffffffffffffffff,0,a0c7df9b,fffffd80770e7ce0,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80770e7ce0,4,20c7df9b,0,ffff800039161a18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80770e7ce0,4,20c7df9b,0,ffff800039161a18) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800039161a18,ffff80003c9a9150,ffff80003c9a90a0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9a9150) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9a9150) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xba1b303aa50, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800039161a18,ffffffffffffffff,0,a0c7df9b,fffffd80770e7ce0,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800039161a18,ffffffffffffffff,0,a0c7df9b,fffffd80770e7ce0,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80770e7ce0,4,20c7df9b,0,ffff800039161a18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80770e7ce0,4,20c7df9b,0,ffff800039161a18) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800039161a18,ffff80003c9a9150,ffff80003c9a90a0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9a9150) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9a9150) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xba1b303aa50, count: -5