login: uvm_fault(0xfffffd806aeb1560, 0x608, 0, 2) -> e kernel: page fault trap, code=0 Stopped at pppacopen+0x19f: movq %r13,0x608 TID PID UID PRFLAGS PFLAGS CPU COMMAND * 31743 15731 0 0 0x4000000 0 syz-executor.3 pppacopen(86353,1,2000,ffff80002166ea80) at pppacopen+0x19f sys/net/if_pppx.c:1020 spec_open(ffff800026552ea8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd807e4944e0,1,fffffd807f7d86c0,ffff80002166ea80) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff8000265530f8,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff80002166ea80,ffffff9c,20000780,0,0,ffff8000265532e0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff800026553350) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78465822930, count: 8 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(0xfffffd806aeb1560, 0x608, 0, 2) -> e ddb> trace pppacopen(86353,1,2000,ffff80002166ea80) at pppacopen+0x19f sys/net/if_pppx.c:1020 spec_open(ffff800026552ea8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd807e4944e0,1,fffffd807f7d86c0,ffff80002166ea80) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff8000265530f8,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff80002166ea80,ffffff9c,20000780,0,0,ffff8000265532e0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff800026553350) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78465822930, count: -7 ddb> show registers rdi 0xffff800023132000 rsi 0x417 rbp 0xffff800026552e20 rbx 0 rdx 0xffff800023132000 rcx 0x416 rax 0xffffffff81540f4f pppacopen+0x19f r8 0x6b0 r9 0xfffffd807f7d86c0 r10 0xe2378c3ec19c899c r11 0x9a6f245dedf33e08 r12 0xfffffd807e4944e0 r13 0 r14 0x86353 acpi_pdirpa+0x721bb r15 0xffff800026552ea8 rip 0xffffffff81540f4f pppacopen+0x19f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800026552dd0 ss 0x10 pppacopen+0x19f: movq %r13,0x608 ddb> show proc PROC (syz-executor.3) pid=31743 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80002166e2a0,0xffffffff828ce7e0 process=0xffff80002594db78 user=0xffff80002654e000, vmspace=0xfffffd806aeb1560 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 15731 195033 41722 0 2 0 syz-executor.3 *15731 31743 41722 0 7 0x4000000 syz-executor.3 41722 451877 71192 0 3 0x82 nanoslp syz-executor.3 50394 391012 0 0 3 0x14200 bored sosplice 3472 374785 71192 0 2 0x482 syz-executor.2 29528 508756 71192 0 2 0x482 syz-executor.1 15437 512443 71192 0 2 0x2 syz-executor.0 71192 269127 12898 0 3 0x82 thrsleep syz-fuzzer 71192 170605 12898 0 2 0x4000482 syz-fuzzer 71192 351505 12898 0 3 0x4000082 thrsleep syz-fuzzer 71192 149757 12898 0 3 0x4000082 thrsleep syz-fuzzer 71192 443071 12898 0 3 0x4000082 thrsleep syz-fuzzer 71192 124058 12898 0 3 0x4000082 kqread syz-fuzzer 12898 151373 95752 0 3 0x10008a sigsusp ksh 95752 17946 51276 0 3 0x9a poll sshd 42717 218360 1 0 3 0x100083 ttyin getty 51276 60835 1 0 3 0x88 poll sshd 78507 149099 80491 73 3 0x100090 kqread syslogd 80491 523241 1 0 3 0x100082 netio syslogd 19115 89834 1 0 3 0x100080 kqread resolvd 94257 11560 73340 77 3 0x100092 kqread dhcpleased 62125 59732 73340 77 3 0x100092 kqread dhcpleased 73340 309776 1 0 3 0x80 kqread dhcpleased 18063 13063 0 0 3 0x14200 bored smr 83295 329561 0 0 2 0x14200 zerothread 65904 157368 0 0 3 0x14200 aiodoned aiodoned 16602 182951 0 0 3 0x14200 syncer update 20244 172543 0 0 3 0x14200 cleaner cleaner 13150 155099 0 0 3 0x14200 reaper reaper 81804 40624 0 0 3 0x14200 pgdaemon pagedaemon 89598 355722 0 0 3 0x14200 bored viomb 95057 278226 0 0 3 0x40014200 acpi0 acpi0 66976 288346 0 0 3 0x14200 bored softnet 56663 366003 0 0 3 0x14200 bored systqmp 94966 21446 0 0 3 0x14200 bored systq 56345 52215 0 0 3 0x40014200 bored softclock 8743 35539 0 0 3 0x40014200 idle0 1 238448 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10172 6716K 7552K 78643K 11840 0 pcb 13 8K 8K 78643K 148 0 rtable 151 4K 7K 78643K 645 0 ifaddr 53 12K 13K 78643K 197 0 counters 23 16K 17K 78643K 28 0 ioctlops 0 0K 4K 78643K 106 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1238 78K 78K 78643K 1540 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 61 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 7 21K 49K 78643K 712 0 proc 57 55K 79K 78643K 418 0 subproc 52 3K 3K 78643K 65 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 113 0 in_multi 55 3K 3K 78643K 185 0 ether_multi 1 0K 0K 78643K 31 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 2K 78643K 467 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 167 40K 46K 78643K 9496 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 90 0 NDP 7 0K 1K 78643K 22 0 temp 52 4179K 4243K 78643K 8819 0 kqueue 10 14K 22K 78643K 72 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 81 0 78 1 0 1 1 0 8 0 rtentry 112 78 0 12 2 0 2 2 0 8 0 unpcb 136 164 0 151 1 0 1 1 0 8 0 syncache 296 17 0 17 1 1 0 1 0 8 0 tcpcb 736 169 0 165 7 4 3 7 0 8 2 arp 88 12 0 2 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 4 0 3 1 0 1 1 0 8 0 inpcb 304 487 0 480 2 0 2 2 0 8 1 nd6 48 15 0 3 1 0 1 1 0 8 0 kcovpl 48 5 0 1 1 0 1 1 0 8 0 pfrktable 1344 168 0 168 1 0 1 1 0 8 1 pfrule 1360 61 0 61 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 319 0 44 18 0 18 18 0 8 0 art_table 32 320 0 44 3 0 3 3 0 8 0 art_node 16 77 0 17 1 0 1 1 0 8 0 semupl 112 10 0 10 1 1 0 1 0 8 0 semapl 112 59 0 49 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2431 0 1022 89 0 89 89 0 8 0 ffsino 240 2431 0 1022 84 0 84 84 0 8 0 nchpl 144 3436 0 1841 61 0 61 61 0 8 0 uvmvnodes 80 2633 0 0 54 0 54 54 0 8 0 vnodes 224 2633 0 0 155 0 155 155 0 8 0 namei 1024 9067 0 9066 1 0 1 1 0 8 0 pfiaddrpl 120 48 0 48 1 0 1 1 0 8 1 scxspl 216 13000 0 13000 2 1 1 2 0 8 1 plimitpl 152 33 0 23 1 0 1 1 0 8 0 sigapl 424 928 0 896 5 1 4 5 0 8 0 futexpl 64 5508 0 5508 1 0 1 1 0 8 1 knotepl 112 396 0 346 2 0 2 2 0 8 0 kqueuepl 184 141 0 135 1 0 1 1 0 8 0 pipepl 304 88 0 72 2 0 2 2 0 8 0 fdescpl 432 914 0 896 3 0 3 3 0 8 0 filepl 120 3529 0 3383 6 1 5 6 0 8 0 lockfpl 104 56 0 54 1 0 1 1 0 8 0 lockfspl 48 29 0 27 1 0 1 1 0 8 0 sessionpl 144 20 0 8 1 0 1 1 0 8 0 pgrppl 48 20 0 8 1 0 1 1 0 8 0 ucredpl 96 453 0 443 1 0 1 1 0 8 0 zombiepl 144 896 0 894 1 0 1 1 0 8 0 processpl 1000 928 0 894 5 0 5 5 0 8 0 procpl 672 1616 0 1576 5 1 4 5 0 8 0 sosppl 168 13 0 13 1 1 0 1 0 8 0 sockpl 448 732 0 709 5 1 4 5 0 8 1 mcl12k 12288 13 0 13 1 0 1 1 0 8 1 mcl8k 8192 36 0 36 2 1 1 1 0 8 1 mcl4k 4096 17 0 17 1 0 1 1 0 8 1 mcl2k 2048 9448 0 9411 8 1 7 7 0 8 1 mtagpl 96 103 0 22 3 1 2 2 0 8 0 mbufpl 256 26199 0 25821 26 0 26 26 0 8 1 bufpl 288 7722 0 1305 459 0 459 459 0 8 0 anonpl 24 220444 0 214803 45 1 44 44 0 188 3 amapchunkpl 152 27009 0 26636 38 1 37 37 0 158 21 amappl16 200 1801 0 1684 10 2 8 10 0 8 1 amappl15 192 318 0 316 1 0 1 1 0 8 0 amappl14 184 332 0 328 1 0 1 1 0 8 0 amappl13 176 49 0 47 1 0 1 1 0 8 0 amappl12 168 14 0 11 1 0 1 1 0 8 0 amappl11 160 42 0 31 1 0 1 1 0 8 0 amappl10 152 110 0 103 1 0 1 1 0 8 0 amappl9 144 633 0 629 1 0 1 1 0 8 0 amappl8 136 440 0 416 1 0 1 1 0 8 0 amappl7 128 163 0 157 1 0 1 1 0 8 0 amappl6 120 306 0 292 1 0 1 1 0 8 0 amappl5 112 571 0 557 1 0 1 1 0 8 0 amappl4 104 888 0 866 1 0 1 1 0 8 0 amappl3 96 171 0 153 1 0 1 1 0 8 0 amappl2 88 385 0 348 2 0 2 2 0 8 0 amappl1 80 18599 0 18164 12 2 10 12 0 8 0 amappl 88 9141 0 9015 4 0 4 4 0 92 0 dma4096 4096 1 0 1 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 128 253 0 253 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 914 0 896 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 914 0 896 1 0 1 1 0 8 0 vmmpekpl 168 8465 0 8440 2 0 2 2 0 8 0 vmmpepl 168 82609 0 81286 73 2 71 73 0 357 5 vmsppl 272 913 0 896 3 1 2 2 0 8 0 rwobjpl 24 23028 0 19572 21 0 21 21 0 8 0 pdppl 4096 1834 0 1792 74 26 48 56 0 8 6 pvpl 32 514625 0 505690 137 6 131 137 0 265 47 pmappl 216 913 0 896 2 0 2 2 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 785 0 36 22 0 22 22 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pppacopen(86353,1,2000,ffff80002166ea80) at pppacopen+0x19f sys/net/if_pppx.c:1020 spec_open(ffff800026552ea8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd807e4944e0,1,fffffd807f7d86c0,ffff80002166ea80) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff8000265530f8,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff80002166ea80,ffffff9c,20000780,0,0,ffff8000265532e0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff800026553350) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78465822930, count: -7 ddb> machine ddbcpu 1 No such command ddb> trace pppacopen(86353,1,2000,ffff80002166ea80) at pppacopen+0x19f sys/net/if_pppx.c:1020 spec_open(ffff800026552ea8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd807e4944e0,1,fffffd807f7d86c0,ffff80002166ea80) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff8000265530f8,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff80002166ea80,ffffff9c,20000780,0,0,ffff8000265532e0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff800026553350) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78465822930, count: -7