uvm_fault(0xfffffd806ef03008, 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 221588 27842 0 0 0 0 syz-executor * 10964 40301 0 0 0x4000000 1K syz-executor ktrops(ffff80002a2979c0,ffffffffffffffff,0,e0c7df9f,fffffd807a6c9b08,fffffd80097fb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a2979c0,ffffffffffffffff,0,e0c7df9f,fffffd807a6c9b08,fffffd80097fb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807a6c9b08,4,60c7df9f,0,ffff80002a2979c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807a6c9b08,4,60c7df9f,0,ffff80002a2979c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a2979c0,ffff80003ac0f8e0,ffff80003ac0f830) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ac0f8e0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac0f8e0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x58d993f5540, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806ef03008, 0xf, 0, 1) -> e ddb{1}> trace ktrops(ffff80002a2979c0,ffffffffffffffff,0,e0c7df9f,fffffd807a6c9b08,fffffd80097fb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a2979c0,ffffffffffffffff,0,e0c7df9f,fffffd807a6c9b08,fffffd80097fb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807a6c9b08,4,60c7df9f,0,ffff80002a2979c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807a6c9b08,4,60c7df9f,0,ffff80002a2979c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a2979c0,ffff80003ac0f8e0,ffff80003ac0f830) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ac0f8e0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac0f8e0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x58d993f5540, count: -5 ddb{1}> show registers rdi 0xffff80002ffde000 rsi 0x7153 __ALIGN_SIZE+0x6153 rbp 0xffff80003ac0f600 rbx 0xfffffd80097fb4e0 rdx 0xffff80002ffde000 rcx 0x7152 __ALIGN_SIZE+0x6152 rax 0xffffffff827727a3 ktrops+0x43 r8 0xfffffd807a6c9b08 r9 0xfffffd80097fb4e0 r10 0xdae271907affcb33 r11 0xf0b3989afab945bf r12 0xffff80002a2979c0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xe0c7df9f rip 0xffffffff827727b8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003ac0f580 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb{1}> show proc PROC (syz-executor) tid=10964 pid=40301 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=0xffff80002a297210,0xffff80002a2962c0 process=0xffff80002a39b088 user=0xffff80003ac0a000, vmspace=0xfffffd806ef03008 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 27842 221588 22572 0 7 0 syz-executor 27842 388566 22572 0 3 0x4000000 biowait syz-executor 90911 265101 47020 0 2 0 syz-executor 90911 449258 47020 0 3 0x4000080 sbwait syz-executor 40301 465359 78076 0 2 0 syz-executor *40301 10964 78076 0 7 0x4000000 syz-executor 35536 510362 63356 0 2 0 syz-executor 35536 331341 63356 0 3 0x4000080 fsleep syz-executor 4309 96492 42008 0 3 0x80 nanoslp syz-executor 4309 307265 42008 0 3 0x4000080 fifow syz-executor 4309 256824 42008 0 3 0x4000080 fsleep syz-executor 67526 438769 0 0 3 0x14200 acct acct 78113 159352 1 0 3 0x100083 ttyin getty 33284 369919 33281 0 3 0x2 biowait syz-executor 22572 232772 33281 0 3 0x82 nanoslp syz-executor 78076 358077 33281 0 3 0x82 nanoslp syz-executor 27219 112531 33281 0 2 0x2 syz-executor 42008 25891 33281 0 3 0x82 nanoslp syz-executor 85885 165190 0 0 3 0x14200 bored sosplice 84969 377349 33281 0 2 0x2 syz-executor 47020 517174 33281 0 3 0x82 nanoslp syz-executor 63356 105161 33281 0 3 0x82 nanoslp syz-executor 33281 337082 48694 0 2 0x2 syz-executor 48694 14771 13483 0 3 0x10008a sigsusp ksh 13483 21480 48512 0 3 0x98 kqread sshd-session 48512 239064 52909 0 3 0x92 kqread sshd-session 52909 410114 1 0 3 0x88 kqread sshd 33340 417324 38794 74 3 0x1100092 bpf pflogd 38794 421955 1 0 3 0x80 sbwait pflogd 74278 122963 60402 73 3 0x1100090 kqread syslogd 60402 23732 1 0 3 0x100082 sbwait syslogd 11456 132500 1 0 3 0x100080 kqread resolvd 28318 222026 58222 77 3 0x100092 kqread dhcpleased 91757 186203 58222 77 3 0x100092 kqread dhcpleased 58222 211193 1 0 3 0x80 kqread dhcpleased 63077 344088 0 0 3 0x14200 bored smr 59793 522067 0 0 2 0x14200 zerothread 85122 273656 0 0 3 0x14200 aiodoned aiodoned 44044 202292 0 0 3 0x14200 syncer update 36285 340619 0 0 3 0x14200 cleaner cleaner 24015 313757 0 0 3 0x14200 reaper reaper 14845 414558 0 0 3 0x14200 pgdaemon pagedaemon 49488 447197 0 0 3 0x14200 bored viomb 93266 94164 0 0 3 0x40014200 acpi0 acpi0 35070 93922 0 0 3 0x40014200 idle1 991 252745 0 0 3 0x14200 bored softnet3 43886 157978 0 0 3 0x14200 bored softnet2 11418 301440 0 0 3 0x14200 bored softnet1 93608 77967 0 0 3 0x14200 bored softnet0 95675 497750 0 0 3 0x14200 bored systqmp 63966 68228 0 0 3 0x14200 bored systq 30035 224429 0 0 3 0x14200 tmoslp softclockmp 73589 352826 0 0 3 0x40014200 tmoslp softclock 48048 383926 0 0 3 0x40014200 idle0 1 115790 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 27842 (syz-executor) thread 0xffff80002a296a60 (388566) Process 40301 (syz-executor) thread 0xffff80002a2979c0 (10964) Process 33284 (syz-executor) thread 0xffff80003c410cf8 (369919) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10246 11127K 11904K 166960K 16882 0 pcb 49 15K 31K 166960K 980 0 rtable 172 11K 11K 166960K 1042 0 pf 40 18K 21K 166960K 288 0 ifaddr 31 5K 7K 166960K 211 0 ifgroup 62 2K 3K 166960K 350 0 sysctl 4 1K 9K 166960K 37 0 counters 70 37K 38K 166960K 384 0 ioctlops 0 0K 4K 166960K 2262 0 iov 0 0K 24K 166960K 500 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1448 91K 92K 166960K 4777 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 71 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 102 0 dirhash 12 2K 3K 166960K 99 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 3490 0 sigio 0 0K 0K 166960K 61 0 proc 72 91K 128K 166960K 1164 0 subproc 72 4K 4K 166960K 145 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 551 0 in_multi 45 3K 7K 166960K 354 0 ether_multi 1 0K 0K 166960K 29 0 mrt 1 0K 0K 166960K 23 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 1066 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 7 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 246 177K 195K 166960K 32497 0 UVM aobj 131 4K 4K 166960K 135 0 pinsyscall 41 82K 104K 166960K 4799 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 234 0 NDP 13 0K 2K 166960K 145 0 temp 79 8688K 8807K 166960K 179402 0 kqueue 14 22K 32K 166960K 688 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 120 280 0 277 2 1 1 2 0 8 0 rtentry 176 325 0 270 6 0 6 6 0 8 0 unpcb 144 2592 0 2569 15 12 3 6 0 8 2 syncache 336 14 0 14 5 4 1 1 0 8 1 tcpqe 32 3 0 3 3 2 1 1 0 8 1 tcpcb 736 1082 0 1073 20 18 2 7 0 8 1 arp 128 46 0 35 1 0 1 1 0 8 0 inpcb 328 3714 0 3669 27 22 5 9 0 8 0 nd6 144 58 0 48 2 0 2 2 0 8 0 pkpcb 40 24 0 24 6 5 1 1 0 8 1 kcovpl 48 16 0 8 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 1 0 1 0 8 0 ppxss 1192 121 0 121 3 2 1 1 0 8 1 pppxif 1504 16 0 16 6 5 1 1 0 8 1 pfstscr 40 3 0 3 2 2 0 1 0 8 0 pffrag 232 40 0 30 1 0 1 1 0 482 0 pffrnode 88 32 0 23 1 0 1 1 0 8 0 pffrent 40 82 0 72 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 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pfstitem 24 191 0 94 1 0 1 1 0 8 0 pfstkey 128 195 0 98 4 0 4 4 0 8 0 pfstate 384 193 0 96 11 0 11 11 0 8 0 pfrule 1344 23 0 18 2 1 1 2 0 8 0 rttmr 136 4 0 4 3 3 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 1500 0 1227 32 10 22 29 0 8 1 art_table 32 1504 0 1227 4 0 4 4 0 8 0 art_node 16 284 0 238 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 10 1 0 1 1 0 8 0 semupl 112 4 0 4 2 2 0 1 0 8 0 semapl 112 96 0 86 1 0 1 1 0 8 0 shmpl 112 132 0 4 4 0 4 4 0 8 0 dirhash 1024 75 0 58 3 0 3 3 0 8 0 dino2pl 256 8018 0 6501 96 0 96 96 0 8 0 ffsino 288 8018 0 6501 110 0 110 110 0 8 0 nchpl 144 12751 0 11032 64 0 64 64 0 8 0 rtmask 32 20 0 20 6 5 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 45976 0 45974 5 4 1 2 0 8 0 percpumem 16 207 0 157 1 0 1 1 0 8 0 kstatmem 264 228 0 196 4 1 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 17 0 17 5 5 0 1 0 8 0 scxspl 216 74875 0 74873 16 14 2 8 1 8 1 plimitpl 152 1057 0 1040 1 0 1 1 0 8 0 sigapl 424 3773 0 3723 10 3 7 9 0 8 0 knotepl 120 618 0 0 18 0 18 18 0 8 0 kqueuepl 224 1716 0 1705 20 18 2 7 0 8 1 pipepl 336 692 0 665 18 13 5 13 0 8 2 fdescpl 520 3722 0 3692 3 0 3 3 0 8 0 filepl 160 27695 0 27437 30 15 15 20 0 8 1 lockfpl 104 1823 0 1819 3 2 1 2 0 8 0 lockfspl 48 719 0 715 1 0 1 1 0 8 0 sessionpl 144 45 0 36 1 0 1 1 0 8 0 pgrppl 48 133 0 116 1 0 1 1 0 8 0 ucredpl 104 4899 0 4886 1 0 1 1 0 8 0 zombiepl 144 3813 0 3812 1 0 1 1 0 8 0 processpl 1240 3773 0 3723 6 1 5 6 0 8 0 procpl 656 9424 0 9368 8 1 7 8 0 8 0 srpgc 96 24 0 24 7 6 1 1 0 8 1 sosppl 168 27 0 27 5 4 1 1 0 8 1 sockpl 728 6823 0 6752 54 45 9 18 0 8 1 mcl64k 65536 7 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 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 129 0 0 16 0 16 16 0 8 0 mcl2k 2048 65 0 0 8 1 7 8 0 8 0 mtagpl 96 154 0 0 4 0 4 4 0 8 0 mbufpl 256 1326 0 0 79 0 79 79 0 8 0 bufpl 280 28510 0 22368 439 0 439 439 0 8 0 anonpl 32 16302 0 0 131 0 131 131 0 246 0 amapchunkpl 152 114278 0 113688 54 18 36 36 0 158 8 amappl16 200 13001 0 12907 99 81 18 37 0 8 6 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 149 0 137 1 0 1 1 0 8 0 amappl13 176 1 0 1 1 1 0 1 0 8 0 amappl12 168 4506 0 4476 3 1 2 2 0 8 0 amappl11 160 50 0 35 1 0 1 1 0 8 0 amappl10 152 78 0 77 2 1 1 1 0 8 0 amappl9 144 255 0 254 2 1 1 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 140 0 127 1 0 1 1 0 8 0 amappl6 120 282 0 278 1 0 1 1 0 8 0 amappl5 112 172 0 162 1 0 1 1 0 8 0 amappl4 104 396 0 373 1 0 1 1 0 8 0 amappl3 96 23410 0 23300 5 1 4 4 0 8 0 amappl2 88 858 0 794 2 0 2 2 0 8 0 amappl1 80 24862 0 24264 16 1 15 15 0 8 0 amappl 88 30989 0 30818 5 0 5 5 0 92 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 3 0 3 3 3 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 10 0 10 4 4 0 1 0 8 0 dma128 128 259 0 259 4 4 0 1 0 8 0 dma64 64 8 0 8 3 2 1 1 0 8 1 dma32 32 9 0 9 2 2 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 134 0 4 3 0 3 3 0 8 0 uaddrrnd 24 3722 0 3692 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3722 0 3692 1 0 1 1 0 8 0 vmmpekpl 168 29520 0 29466 3 0 3 3 0 8 0 vmmpepl 168 238716 0 236682 143 38 105 121 0 357 0 vmsppl 480 3721 0 3692 7 2 5 5 0 8 0 rwobjpl 72 66835 0 59764 143 8 135 140 0 8 1 pdppl 4096 7451 0 7384 125 54 71 85 0 8 4 pvpl 32 23613 0 0 191 1 190 190 0 265 0 pmappl 256 3721 0 3692 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 538 0 114 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8382cff0) 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 __mp_lock(ffffffff83991c98) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83991c98) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff800030be3870,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x74cea2686ad0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff8382cff0) 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 __mp_lock(ffffffff83991c98) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83991c98) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff800030be3870,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x74cea2686ad0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 ktrops(ffff80002a2979c0,ffffffffffffffff,0,e0c7df9f,fffffd807a6c9b08,fffffd80097fb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a2979c0,ffffffffffffffff,0,e0c7df9f,fffffd807a6c9b08,fffffd80097fb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807a6c9b08,4,60c7df9f,0,ffff80002a2979c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807a6c9b08,4,60c7df9f,0,ffff80002a2979c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a2979c0,ffff80003ac0f8e0,ffff80003ac0f830) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ac0f8e0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac0f8e0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x58d993f5540, count: 10 ddb{1}> trace ktrops(ffff80002a2979c0,ffffffffffffffff,0,e0c7df9f,fffffd807a6c9b08,fffffd80097fb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a2979c0,ffffffffffffffff,0,e0c7df9f,fffffd807a6c9b08,fffffd80097fb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807a6c9b08,4,60c7df9f,0,ffff80002a2979c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807a6c9b08,4,60c7df9f,0,ffff80002a2979c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a2979c0,ffff80003ac0f8e0,ffff80003ac0f830) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ac0f8e0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac0f8e0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x58d993f5540, count: -5