login: uvm_fault(0xfffffd8064dcc210, 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 *296212 34839 0 0 0x4000000 0K syz-executor ktrops(ffff8000ffff07d0,ffffffffffffffff,0,a0c7df9f,fffffd805d3547d8,fffffd80097fb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000ffff07d0,ffffffffffffffff,0,a0c7df9f,fffffd805d3547d8,fffffd80097fb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805d3547d8,4,20c7df9f,0,ffff8000ffff07d0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805d3547d8,4,20c7df9f,0,ffff8000ffff07d0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000ffff07d0,ffff80003c40e5e0,ffff80003c40e530) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c40e5e0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40e5e0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x41edb145400, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd8064dcc210, 0xf, 0, 1) -> e ddb{0}> trace ktrops(ffff8000ffff07d0,ffffffffffffffff,0,a0c7df9f,fffffd805d3547d8,fffffd80097fb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000ffff07d0,ffffffffffffffff,0,a0c7df9f,fffffd805d3547d8,fffffd80097fb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805d3547d8,4,20c7df9f,0,ffff8000ffff07d0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805d3547d8,4,20c7df9f,0,ffff8000ffff07d0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000ffff07d0,ffff80003c40e5e0,ffff80003c40e530) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c40e5e0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40e5e0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x41edb145400, count: -5 ddb{0}> show registers rdi 0xffff80002efd9000 rsi 0x3240 __ALIGN_SIZE+0x2240 rbp 0xffff80003c40e300 rbx 0xfffffd80097fb618 rdx 0xffff80002efd9000 rcx 0x323f __ALIGN_SIZE+0x223f rax 0xffffffff823b91a3 ktrops+0x43 r8 0xfffffd805d3547d8 r9 0xfffffd80097fb618 r10 0x5dac605b01f8c69b r11 0x1b74bf3ea37eb454 r12 0xffff8000ffff07d0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff823b91b8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c40e280 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb{0}> show proc PROC (syz-executor) tid=296212 pid=34839 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=0xffff8000fffe8f98,0xffff8000ffff02c0 process=0xffff8000fffeebb0 user=0xffff80003c409000, vmspace=0xfffffd8064dcc210 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 34839 264514 14975 0 2 0 syz-executor *34839 296212 14975 0 7 0x4000000 syz-executor 72685 75103 26102 0 2 0 syz-executor 72685 154094 26102 0 2 0x4000000 syz-executor 66101 507554 65685 0 2 0 syz-executor 66101 184339 65685 0 3 0x4000080 fsleep syz-executor 66101 417620 65685 0 3 0x4000080 fsleep syz-executor 66101 214109 65685 0 3 0x4000080 fsleep syz-executor 51248 148674 19743 0 2 0 syz-executor 51248 245100 19743 0 3 0x4000080 fsleep syz-executor 24069 125826 1 0 3 0x100083 ttyin getty 32845 54933 68627 0 2 0x2 syz-executor 19743 462455 68627 0 3 0x82 nanoslp syz-executor 77819 256884 0 0 3 0x14200 acct acct 27089 194127 68627 0 2 0x2 syz-executor 47122 231495 0 0 3 0x14200 bored sosplice 14975 372738 68627 0 3 0x82 nanoslp syz-executor 10513 459013 68627 0 3 0x82 nanoslp syz-executor 68160 106978 68627 0 3 0x82 wait syz-executor 26102 381001 68627 0 3 0x82 nanoslp syz-executor 65685 480355 68627 0 3 0x82 nanoslp syz-executor 68627 460714 17086 0 2 0x82 syz-executor 17086 465757 14077 0 3 0x10008a sigsusp ksh 14077 466646 67806 0 3 0x98 kqread sshd-session 67806 324448 8204 0 3 0x92 kqread sshd-session 8204 464432 1 0 3 0x88 kqread sshd 50447 400223 6740 74 3 0x1100092 bpf pflogd 6740 5196 1 0 3 0x80 sbwait pflogd 53981 122675 24800 73 3 0x1100090 kqread syslogd 24800 373970 1 0 3 0x100082 sbwait syslogd 93638 237099 1 0 3 0x100080 kqread resolvd 47913 198559 3890 77 3 0x100092 kqread dhcpleased 85120 179164 3890 77 3 0x100092 kqread dhcpleased 3890 273959 1 0 3 0x80 kqread dhcpleased 69497 510771 0 0 3 0x14200 bored smr 89146 403474 0 0 2 0x14200 zerothread 87762 270409 0 0 3 0x14200 aiodoned aiodoned 6341 187826 0 0 3 0x14200 syncer update 26127 258700 0 0 3 0x14200 cleaner cleaner 36043 186451 0 0 3 0x14200 reaper reaper 9968 128631 0 0 3 0x14200 pgdaemon pagedaemon 44690 275283 0 0 3 0x14200 bored viomb 35987 584 0 0 3 0x40014200 acpi0 acpi0 68866 16259 0 0 7 0x40014200 idle1 92863 492614 0 0 3 0x14200 bored softnet3 98375 257197 0 0 3 0x14200 bored softnet2 11915 375990 0 0 3 0x14200 bored softnet1 99474 47650 0 0 2 0x14200 softnet0 42444 135608 0 0 3 0x14200 bored systqmp 36455 489677 0 0 3 0x14200 bored systq 30285 233405 0 0 3 0x14200 tmoslp softclockmp 94180 326446 0 0 2 0x40014200 softclock 75797 401060 0 0 3 0x40014200 idle0 1 500558 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 34839 (syz-executor) thread 0xffff8000ffff07d0 (296212) Process 32845 (syz-executor) thread 0xffff80003c4459d0 (54933) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10256 11305K 12656K 166960K 15188 0 pcb 19 14K 15K 166960K 400 0 rtable 200 8K 8K 166960K 532 0 pf 35 17K 67485K 166960K 182 0 ifaddr 41 7K 8K 166960K 132 0 ifgroup 55 2K 2K 166960K 211 0 sysctl 4 1K 9K 166960K 21 0 counters 68 36K 37K 166960K 328 0 ioctlops 0 0K 6K 166960K 1922 0 iov 0 0K 28K 166960K 101 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1500 94K 95K 166960K 3410 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 24 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 72 0 dirhash 12 2K 3K 166960K 69 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 2012 0 sigio 0 0K 0K 166960K 75 0 proc 73 91K 140K 166960K 935 0 subproc 72 4K 4K 166960K 111 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 222 0 in_multi 94 6K 7K 166960K 234 0 ether_multi 1 0K 0K 166960K 21 0 mrt 1 0K 0K 166960K 21 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 754 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 233 160K 182K 166960K 19763 0 UVM aobj 89 8K 8K 166960K 95 0 pinsyscall 41 82K 106K 166960K 3176 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 114 0 NDP 12 0K 2K 166960K 88 0 temp 80 8684K 8792K 166960K 93885 0 kqueue 13 20K 32K 166960K 407 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 137 0 133 1 0 1 1 0 8 0 rtentry 176 201 0 117 5 0 5 5 0 8 0 unpcb 144 1641 0 1623 10 6 4 6 0 8 3 syncache 336 6 0 6 3 3 0 1 0 8 0 tcpcb 736 899 0 893 21 14 7 9 0 8 6 arp 128 22 0 11 1 0 1 1 0 8 0 inpcb 328 2359 0 2348 24 17 7 10 0 8 5 nd6 144 37 0 21 1 0 1 1 0 8 0 pkpcb 40 21 0 21 3 2 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1192 109 0 109 4 3 1 1 0 8 1 pppxif 1504 8 0 8 5 4 1 1 0 8 1 pffrag 232 48 0 42 1 0 1 1 0 482 0 pffrnode 88 48 0 42 1 0 1 1 0 8 0 pffrent 40 91 0 85 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfanchor 1288 1 0 1 1 1 0 1 0 8 0 pfstitem 24 133 0 43 1 0 1 1 0 8 0 pfstkey 128 133 0 43 3 0 3 3 0 8 0 pfstate 384 133 0 43 10 0 10 10 0 8 0 pfrule 1344 28 0 21 2 1 1 2 0 8 0 rttmr 136 5 0 5 3 3 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 919 0 523 34 7 27 30 0 8 0 art_table 40 921 0 523 5 0 5 5 0 8 0 art_node 32 200 0 126 1 0 1 1 0 8 0 sysvmsgpl 40 26 0 18 1 0 1 1 0 8 0 semupl 112 4 0 4 3 3 0 1 0 8 0 semapl 112 69 0 59 1 0 1 1 0 8 0 shmpl 112 92 0 6 3 0 3 3 0 8 0 dirhash 1024 56 0 39 3 0 3 3 0 8 0 dino2pl 256 5043 0 3517 97 1 96 96 0 8 0 ffsino 288 5043 0 3517 110 0 110 110 0 8 0 nchpl 144 7802 0 6093 64 0 64 64 0 8 0 rtmask 32 8 0 8 3 2 1 1 0 8 1 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 28207 0 28206 5 4 1 2 0 8 0 percpumem 16 179 0 130 1 0 1 1 0 8 0 kstatmem 264 128 0 102 5 2 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 5 0 5 2 2 0 1 0 8 0 scxspl 216 52700 0 52700 12 11 1 8 1 8 1 plimitpl 152 529 0 512 1 0 1 1 0 8 0 sigapl 424 2293 0 2243 10 3 7 9 0 8 0 knotepl 120 788 0 0 23 0 23 23 0 8 0 kqueuepl 224 820 0 810 8 6 2 5 0 8 1 pipepl 336 717 0 690 23 15 8 11 0 8 5 fdescpl 520 2249 0 2219 3 0 3 3 0 8 0 filepl 160 16365 0 16140 42 23 19 21 0 8 8 lockfpl 104 1329 0 1324 3 2 1 2 0 8 0 lockfspl 48 608 0 603 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 142 0 125 1 0 1 1 0 8 0 ucredpl 104 2575 0 2561 1 0 1 1 0 8 0 zombiepl 144 2245 0 2243 1 0 1 1 0 8 0 processpl 1240 2293 0 2243 6 0 6 6 0 8 0 procpl 656 5409 0 5353 8 1 7 8 0 8 0 sosppl 168 14 0 14 3 2 1 1 0 8 1 sockpl 728 4221 0 4188 36 25 11 16 0 8 7 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k 2048 58 0 0 6 0 6 6 0 8 0 mtagpl 96 109 0 0 3 0 3 3 0 8 0 mbufpl 256 2465 0 0 152 0 152 152 0 8 0 bufpl 280 21153 0 15011 440 1 439 440 0 8 0 anonpl 32 13513 0 0 109 0 109 109 0 246 0 amapchunkpl 152 67471 0 66878 49 20 29 36 0 158 3 amappl16 200 7951 0 7915 47 31 16 29 0 8 4 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 125 0 113 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 2955 0 2925 3 1 2 2 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 56 0 55 1 0 1 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 24 0 21 1 0 1 1 0 8 0 amappl7 128 124 0 111 1 0 1 1 0 8 0 amappl6 120 223 0 219 1 0 1 1 0 8 0 amappl5 112 150 0 140 1 0 1 1 0 8 0 amappl4 104 316 0 296 1 0 1 1 0 8 0 amappl3 96 13649 0 13542 5 1 4 4 0 8 0 amappl2 88 730 0 666 2 0 2 2 0 8 0 amappl1 80 16613 0 16018 17 2 15 15 0 8 0 amappl 88 18702 0 18542 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 2 0 2 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 128 256 0 256 4 4 0 1 0 8 0 dma64 64 10 0 10 5 4 1 1 0 8 1 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 94 0 6 2 0 2 2 0 8 0 uaddrrnd 24 2249 0 2219 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2249 0 2219 1 0 1 1 0 8 0 vmmpekpl 168 20343 0 20291 4 1 3 3 0 8 0 vmmpepl 168 145727 0 143767 120 17 103 112 0 357 4 vmsppl 480 2248 0 2219 7 2 5 5 0 8 0 rwobjpl 72 44465 0 37521 133 1 132 132 0 8 3 pdppl 4096 4506 0 4438 114 42 72 86 0 8 4 pvpl 32 20835 0 0 169 1 168 168 0 265 0 pmappl 256 2248 0 2219 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 596 0 89 15 0 15 15 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ktrops(ffff8000ffff07d0,ffffffffffffffff,0,a0c7df9f,fffffd805d3547d8,fffffd80097fb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000ffff07d0,ffffffffffffffff,0,a0c7df9f,fffffd805d3547d8,fffffd80097fb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805d3547d8,4,20c7df9f,0,ffff8000ffff07d0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805d3547d8,4,20c7df9f,0,ffff8000ffff07d0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000ffff07d0,ffff80003c40e5e0,ffff80003c40e530) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c40e5e0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40e5e0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x41edb145400, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu_x86.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x4d8 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu_x86.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x4d8 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5