uvm_fault(0xfffffd806aeaa780, 0x608, 0, 2) -> e kernel: page fault trap, code=0 Stopped at pppacopen+0x19f: movq %r13,0x608 TID PID UID PRFLAGS PFLAGS CPU COMMAND *214247 37573 0 0 0x4000000 0 syz-executor.1 pppacopen(86338,1,2000,ffff80002163fa40) at pppacopen+0x19f sys/net/if_pppx.c:1020 spec_open(ffff800027fe2bc8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd8064aa1d58,1,fffffd807f7d8900,ffff80002163fa40) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff800027fe2e18,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff80002163fa40,ffffff9c,20000200,0,0,ffff800027fe3000) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff800027fe3070) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f3f3162b10, 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(0xfffffd806aeaa780, 0x608, 0, 2) -> e ddb> trace pppacopen(86338,1,2000,ffff80002163fa40) at pppacopen+0x19f sys/net/if_pppx.c:1020 spec_open(ffff800027fe2bc8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd8064aa1d58,1,fffffd807f7d8900,ffff80002163fa40) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff800027fe2e18,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff80002163fa40,ffffff9c,20000200,0,0,ffff800027fe3000) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff800027fe3070) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f3f3162b10, count: -7 ddb> show registers rdi 0xffff800024b30000 rsi 0x412 rbp 0xffff800027fe2b40 rbx 0 rdx 0xffff800024b30000 rcx 0x411 rax 0xffffffff81540f4f pppacopen+0x19f r8 0x6b0 r9 0xfffffd807f7d8900 r10 0xf8509adfbc469f68 r11 0xcde9aba1855f4a13 r12 0xfffffd8064aa1d58 r13 0 r14 0x86338 acpi_pdirpa+0x721a0 r15 0xffff800027fe2bc8 rip 0xffffffff81540f4f pppacopen+0x19f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800027fe2af0 ss 0x10 pppacopen+0x19f: movq %r13,0x608 ddb> show proc PROC (syz-executor.1) pid=214247 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff80002163e000,0xffffffff828ce7e0 process=0xffff80002164c408 user=0xffff800027fde000, vmspace=0xfffffd806aeaa780 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 37573 158394 64453 0 2 0 syz-executor.1 *37573 214247 64453 0 7 0x4000000 syz-executor.1 82322 421352 6604 0 2 0 syz-executor.3 82322 340006 6604 0 3 0x4000080 fsleep syz-executor.3 46186 377565 88671 0 2 0x2 syz-executor.2 6604 270904 88671 0 3 0x82 nanoslp syz-executor.3 34635 322116 0 0 3 0x14200 bored sosplice 82812 54061 0 0 3 0x14280 nfsidl nfsio 40886 498639 0 0 3 0x14280 nfsidl nfsio 64256 249811 0 0 3 0x14280 nfsidl nfsio 87827 32340 0 0 3 0x14280 nfsidl nfsio 75463 70078 0 0 3 0x14280 nfsidl nfsio 22015 161720 0 0 3 0x14280 nfsidl nfsio 91434 242843 0 0 3 0x14280 nfsidl nfsio 15113 194618 0 0 3 0x14280 nfsidl nfsio 76303 207655 0 0 3 0x14280 nfsidl nfsio 94283 376300 0 0 3 0x14280 nfsidl nfsio 85589 443018 0 0 3 0x14280 nfsidl nfsio 84397 365487 0 0 3 0x14280 nfsidl nfsio 40085 48309 0 0 3 0x14280 nfsidl nfsio 58860 438306 0 0 3 0x14280 nfsidl nfsio 80015 108885 0 0 3 0x14280 nfsidl nfsio 99914 15089 0 0 3 0x14280 nfsidl nfsio 45878 54847 0 0 3 0x14280 nfsidl nfsio 10936 86442 0 0 3 0x14280 nfsidl nfsio 4567 373722 0 0 3 0x14280 nfsidl nfsio 67944 152411 0 0 3 0x14280 nfsidl nfsio 75642 225866 1 0 3 0x100083 ttyin getty 64453 7090 88671 0 3 0x82 nanoslp syz-executor.1 80203 471972 88671 0 3 0x82 nanoslp syz-executor.0 88671 434524 29934 0 3 0x82 kqread syz-fuzzer 88671 459735 29934 0 3 0x4000082 thrsleep syz-fuzzer 88671 446632 29934 0 3 0x4000082 thrsleep syz-fuzzer 88671 327990 29934 0 3 0x4000082 thrsleep syz-fuzzer 88671 262210 29934 0 3 0x4000082 thrsleep syz-fuzzer 88671 211522 29934 0 3 0x4000082 thrsleep syz-fuzzer 29934 106369 62926 0 3 0x10008a sigsusp ksh 62926 250117 61515 0 3 0x9a poll sshd 61515 17709 1 0 3 0x88 poll sshd 92397 415445 71059 73 3 0x100090 kqread syslogd 71059 502785 1 0 3 0x100082 netio syslogd 72721 320540 1 0 3 0x100080 kqread resolvd 50767 407769 34375 77 3 0x100092 kqread dhcpleased 39929 224665 34375 77 3 0x100092 kqread dhcpleased 34375 279794 1 0 3 0x80 kqread dhcpleased 98390 312253 0 0 3 0x14200 bored smr 55260 512873 0 0 2 0x14200 zerothread 9583 2238 0 0 3 0x14200 aiodoned aiodoned 336 221861 0 0 3 0x14200 syncer update 31098 507731 0 0 3 0x14200 cleaner cleaner 40534 13924 0 0 3 0x14200 reaper reaper 44926 468528 0 0 3 0x14200 pgdaemon pagedaemon 30046 377634 0 0 3 0x14200 bored viomb 38985 201128 0 0 3 0x40014200 acpi0 acpi0 97865 504576 0 0 3 0x14200 bored softnet 1010 157116 0 0 3 0x14200 bored systqmp 58436 105382 0 0 3 0x14200 bored systq 6232 854 0 0 3 0x40014200 bored softclock 17419 149333 0 0 3 0x40014200 idle0 1 434270 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 10146 6400K 6972K 78643K 12926 0 pcb 13 8K 8K 78643K 107 0 rtable 138 4K 8K 78643K 585 0 ifaddr 54 12K 14K 78643K 233 0 counters 23 16K 17K 78643K 43 0 ioctlops 0 0K 4K 78643K 224 0 iov 0 0K 36K 78643K 58 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1232 77K 78K 78643K 1907 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 138 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 8 25K 45K 78643K 1969 0 proc 59 55K 79K 78643K 496 0 subproc 52 3K 3K 78643K 78 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 90 0 in_multi 45 3K 4K 78643K 151 0 ether_multi 1 0K 0K 78643K 25 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 2K 78643K 569 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 208 108K 108K 78643K 24412 0 UVM aobj 4 4K 4K 78643K 4 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 130 0 NDP 7 0K 1K 78643K 43 0 temp 66 4184K 4249K 78643K 13705 0 kqueue 10 14K 26K 78643K 113 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 120 107 0 104 1 0 1 1 0 8 0 rtentry 112 98 0 39 2 0 2 2 0 8 0 unpcb 136 379 0 366 1 0 1 1 0 8 0 syncache 296 29 0 29 4 3 1 1 0 8 1 tcpcb 736 396 0 390 10 7 3 4 0 8 1 arp 88 15 0 5 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 44 0 44 1 1 0 1 0 8 0 inpcb 304 837 0 830 2 0 2 2 0 8 1 ip6q 72 1 0 0 1 0 1 1 0 8 0 nd6 48 22 0 13 1 0 1 1 0 8 0 kcovpl 48 6 0 2 1 0 1 1 0 8 0 pfstscr 40 4 0 3 1 0 1 1 0 8 0 pfrktable 1344 107 0 106 2 1 1 1 0 8 0 pftag 88 17 0 17 1 1 0 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 112 8 0 6 1 0 1 1 0 8 0 pfstate 320 4 0 3 1 0 1 1 0 8 0 pfrule 1360 129 0 113 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 372 0 134 18 3 15 18 0 8 0 art_table 32 373 0 134 3 0 3 3 0 8 0 art_node 16 97 0 43 1 0 1 1 0 8 0 sysvmsgpl 40 39 0 13 1 0 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 136 0 126 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3975 0 2571 89 0 89 89 0 8 0 ffsino 240 3975 0 2571 83 0 83 83 0 8 0 nchpl 144 6382 0 4787 61 0 61 61 0 8 0 uvmvnodes 80 4437 0 0 91 0 91 91 0 8 0 vnodes 224 4437 0 0 261 0 261 261 0 8 0 namei 1024 16421 0 16420 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 528 4 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 33 0 33 3 3 0 1 0 8 0 scsiplug 72 5 0 5 1 1 0 1 0 8 0 scxspl 216 22467 0 22467 9 8 1 8 0 8 1 plimitpl 152 133 0 123 1 0 1 1 0 8 0 sigapl 424 2206 0 2153 8 1 7 7 0 8 0 futexpl 64 12020 0 12019 1 0 1 1 0 8 0 knotepl 112 545 0 495 2 0 2 2 0 8 0 kqueuepl 184 231 0 225 1 0 1 1 0 8 0 pipepl 304 163 0 147 2 0 2 2 0 8 0 fdescpl 432 2172 0 2153 3 0 3 3 0 8 0 filepl 120 6646 0 6499 8 2 6 6 0 8 1 lockfpl 104 272 0 270 1 0 1 1 0 8 0 lockfspl 48 105 0 103 1 0 1 1 0 8 0 sessionpl 144 22 0 10 1 0 1 1 0 8 0 pgrppl 48 22 0 10 1 0 1 1 0 8 0 ucredpl 96 942 0 932 1 0 1 1 0 8 0 zombiepl 144 2153 0 2152 1 0 1 1 0 8 0 processpl 1000 2206 0 2152 7 0 7 7 0 8 0 procpl 672 4324 0 4263 7 1 6 6 0 8 0 sosppl 168 25 0 25 1 1 0 1 0 8 0 sockpl 448 1323 0 1300 7 3 4 4 0 8 1 mcl64k 65536 6 0 6 3 3 0 1 0 8 0 mcl12k 12288 20 0 20 1 1 0 1 0 8 0 mcl9k 9216 5 0 5 2 2 0 1 0 8 0 mcl8k 8192 35 0 35 2 2 0 1 0 8 0 mcl4k 4096 22 0 22 2 2 0 1 0 8 0 mcl2k 2048 17862 0 17825 8 2 6 7 0 8 0 mtagpl 96 200 0 80 5 1 4 4 0 8 0 mbufpl 256 52817 0 52305 49 11 38 46 0 8 0 bufpl 288 6791 0 374 459 0 459 459 0 8 0 anonpl 24 664812 0 657942 131 54 77 117 0 188 28 amapchunkpl 152 91633 0 91216 340 188 152 334 0 158 135 amappl16 200 11917 0 11764 111 102 9 46 0 8 0 amappl14 184 469 0 467 1 0 1 1 0 8 0 amappl13 176 498 0 497 1 0 1 1 0 8 0 amappl12 168 18 0 14 1 0 1 1 0 8 0 amappl11 160 44 0 33 1 0 1 1 0 8 0 amappl10 152 88 0 82 1 0 1 1 0 8 0 amappl9 144 925 0 921 1 0 1 1 0 8 0 amappl8 136 870 0 829 2 0 2 2 0 8 0 amappl7 128 547 0 539 1 0 1 1 0 8 0 amappl6 120 626 0 608 1 0 1 1 0 8 0 amappl5 112 2082 0 2065 1 0 1 1 0 8 0 amappl4 104 609 0 587 1 0 1 1 0 8 0 amappl3 96 193 0 177 1 0 1 1 0 8 0 amappl2 88 857 0 820 2 0 2 2 0 8 0 amappl1 80 38959 0 38503 12 1 11 12 0 8 0 amappl 88 23947 0 23800 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 2176 0 2153 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2176 0 2153 1 0 1 1 0 8 0 vmmpekpl 168 13624 0 13585 2 0 2 2 0 8 0 vmmpepl 168 204193 0 202720 109 36 73 103 0 357 1 vmsppl 272 2175 0 2153 3 1 2 2 0 8 0 rwobjpl 24 54870 0 49531 33 0 33 33 0 8 0 pdppl 4096 4358 0 4310 80 28 52 54 0 8 4 pvpl 32 1232541 0 1222154 213 60 153 198 0 265 60 pmappl 216 2175 0 2153 2 0 2 2 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 824 0 65 22 0 22 22 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pppacopen(86338,1,2000,ffff80002163fa40) at pppacopen+0x19f sys/net/if_pppx.c:1020 spec_open(ffff800027fe2bc8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd8064aa1d58,1,fffffd807f7d8900,ffff80002163fa40) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff800027fe2e18,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff80002163fa40,ffffff9c,20000200,0,0,ffff800027fe3000) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff800027fe3070) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f3f3162b10, count: -7 ddb> machine ddbcpu 1 No such command ddb> trace pppacopen(86338,1,2000,ffff80002163fa40) at pppacopen+0x19f sys/net/if_pppx.c:1020 spec_open(ffff800027fe2bc8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd8064aa1d58,1,fffffd807f7d8900,ffff80002163fa40) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff800027fe2e18,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff80002163fa40,ffffff9c,20000200,0,0,ffff800027fe3000) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff800027fe3070) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f3f3162b10, count: -7