b+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣuvm_fault(0xfffffd807a2db180, 0x668, 0, 2) -> e kernel: page fault trap, code=0 Stopped at pppacopen+0x1b5: movq %r13,0x668 TID PID UID PRFLAGS PFLAGS CPU COMMAND *284746 52693 0 0 0x4000000 0 syz-executor.2 369754 60481 0 0x2 0 1 syz-executor.1 pppacopen(86353,1,2000,ffff8000ffff5508) at pppacopen+0x1b5 sys/net/if_pppx.c:1020 spec_open(ffff80002167fb48) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd80696da5e0,1,fffffd807f7d76c0,ffff8000ffff5508) at VOP_OPEN+0x75 sys/kern/vfs_vops.c:138 vn_open(ffff80002167fd98,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff8000ffff5508,ffffff9c,20000780,0,0,ffff80002167ff80) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff80002167fff0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002167fff0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd8643774d60, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd807a2db180, 0x668, 0, 2) -> e ddb{0}> trace pppacopen(86353,1,2000,ffff8000ffff5508) at pppacopen+0x1b5 sys/net/if_pppx.c:1020 spec_open(ffff80002167fb48) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd80696da5e0,1,fffffd807f7d76c0,ffff8000ffff5508) at VOP_OPEN+0x75 sys/kern/vfs_vops.c:138 vn_open(ffff80002167fd98,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff8000ffff5508,ffffff9c,20000780,0,0,ffff80002167ff80) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff80002167fff0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002167fff0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd8643774d60, count: -7 ddb{0}> show registers rdi 0xffff800022cdf000 rsi 0x96e rbp 0xffff80002167fac0 rbx 0 rdx 0xffff800022cdf000 rcx 0x96d rax 0xffffffff81c79ee5 pppacopen+0x1b5 r8 0x770 r9 0xfffffd807f7d76c0 r10 0xe1b79734a83bccf3 r11 0x7a378a7f15b72cc0 r12 0xfffffd80696da5e0 r13 0 r14 0x86353 acpi_pdirpa+0x721bb r15 0xffff80002167fb48 rip 0xffffffff81c79ee5 pppacopen+0x1b5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002167fa70 ss 0x10 pppacopen+0x1b5: movq %r13,0x668 ddb{0}> show proc PROC (syz-executor.2) pid=284746 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff4008,0xffffffff8293ceb0 process=0xffff8000ffffb610 user=0xffff80002167b000, vmspace=0xfffffd807a2db180 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 52693 8914 53359 0 2 0 syz-executor.2 *52693 284746 53359 0 7 0x4000000 syz-executor.2 23067 424964 60481 0 2 0 syz-executor.1 23067 294237 60481 0 3 0x4000080 ttyin syz-executor.1 17275 317557 93161 0 2 0 syz-executor.0 17275 34450 93161 0 3 0x4000080 fsleep syz-executor.0 31311 146840 64969 0 2 0x2 syz-executor.3 24679 292697 0 0 3 0x14200 bored sosplice 60481 369754 64969 0 7 0x2 syz-executor.1 53359 43977 64969 0 2 0x482 syz-executor.2 93161 382251 64969 0 3 0x82 nanoslp syz-executor.0 64969 134714 42859 0 3 0x82 thrsleep syz-fuzzer 64969 247666 42859 0 3 0x4000082 nanoslp syz-fuzzer 64969 352113 42859 0 3 0x4000082 thrsleep syz-fuzzer 64969 230156 42859 0 3 0x4000082 thrsleep syz-fuzzer 64969 139347 42859 0 3 0x4000082 thrsleep syz-fuzzer 64969 44138 42859 0 3 0x4000082 thrsleep syz-fuzzer 64969 183236 42859 0 3 0x4000082 thrsleep syz-fuzzer 64969 191916 42859 0 3 0x4000082 kqread syz-fuzzer 42859 326264 31517 0 3 0x10008a sigsusp ksh 31517 128498 55656 0 3 0x9a poll sshd 62706 144731 1 0 3 0x100083 ttyin getty 55656 448872 1 0 3 0x88 poll sshd 24765 179621 2077 74 3 0x100092 bpf pflogd 2077 27305 1 0 3 0x80 netio pflogd 44498 395521 4712 73 3 0x100090 kqread syslogd 4712 237037 1 0 3 0x100082 netio syslogd 79686 93557 1 0 3 0x100080 kqread resolvd 64591 392283 73927 77 3 0x100092 kqread dhcpleased 1309 84641 73927 77 3 0x100092 kqread dhcpleased 73927 294273 1 0 3 0x80 kqread dhcpleased 36400 372887 0 0 3 0x14200 bored smr 10773 86832 0 0 2 0x14200 zerothread 6610 365826 0 0 3 0x14200 aiodoned aiodoned 47605 192248 0 0 3 0x14200 syncer update 96531 497089 0 0 3 0x14200 cleaner cleaner 9853 151118 0 0 3 0x14200 reaper reaper 53685 44830 0 0 3 0x14200 pgdaemon pagedaemon 20273 149378 0 0 3 0x14200 bored viomb 19012 161227 0 0 3 0x40014200 acpi0 acpi0 54768 314033 0 0 3 0x40014200 idle1 8228 405709 0 0 3 0x14200 bored softnet 49339 373611 0 0 3 0x14200 bored systqmp 14976 15920 0 0 3 0x14200 bored systq 58748 311505 0 0 2 0x40014200 softclock 61450 277701 0 0 3 0x40014200 idle0 1 470522 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 52693 (syz-executor.2) thread 0xffff8000ffff5508 (284746) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828f9c10) #0 witness_lock+0x44d #1 syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10165 6475K 6852K 78643K 12341 0 pcb 13 8K 8K 78643K 104 0 rtable 156 5K 6K 78643K 524 0 ifaddr 58 13K 14K 78643K 106 0 sysctl 2 0K 0K 78643K 2 0 counters 48 34K 34K 78643K 66 0 ioctlops 0 0K 4K 78643K 1563 0 iov 0 0K 16K 78643K 24 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1236 78K 78K 78643K 1613 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 12 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 20 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 9 29K 45K 78643K 1354 0 proc 70 87K 111K 78643K 483 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 150 0 in_multi 55 3K 3K 78643K 141 0 ether_multi 1 0K 0K 78643K 17 0 mrt 0 0K 0K 78643K 68 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 2K 78643K 511 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 249 110K 110K 78643K 17349 0 UVM aobj 64 2K 2K 78643K 64 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 81 0 NDP 8 0K 1K 78643K 27 0 temp 98 4199K 4327K 78643K 15936 0 kqueue 10 14K 16K 78643K 37 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 101 0 98 1 0 1 1 0 8 0 rtentry 112 161 0 94 2 0 2 2 0 8 0 unpcb 136 345 0 330 1 0 1 1 0 8 0 syncache 296 20 0 20 4 4 0 1 0 8 0 tcpqe 32 223 0 223 3 3 0 1 0 8 0 tcpcb 736 237 0 223 7 5 2 4 0 8 0 arp 120 29 0 19 1 0 1 1 0 8 0 inpcb 304 647 0 638 3 2 1 2 0 8 0 rttmr 72 30 0 30 2 2 0 1 0 8 0 nd6 48 15 0 3 1 0 1 1 0 8 0 pkpcb 40 8 0 8 2 1 1 1 0 8 1 kcovpl 48 5 0 1 1 0 1 1 0 8 0 pffrag 232 2 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 1 1 0 1 1 0 8 0 pffrent 40 5 0 4 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 6 0 6 2 2 0 1 0 8 0 pfstitem 24 40 0 18 1 0 1 1 0 8 0 pfstkey 112 40 0 18 1 0 1 1 0 8 0 pfstate 320 40 0 18 2 0 2 2 0 8 0 pfrule 1360 53 0 44 2 0 2 2 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 366 0 90 18 0 18 18 0 8 0 art_table 32 367 0 90 3 0 3 3 0 8 0 art_node 16 160 0 104 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semupl 112 9 0 9 2 2 0 1 0 8 0 semapl 112 13 0 3 1 0 1 1 0 8 0 shmpl 112 61 0 0 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3146 0 1732 90 1 89 90 0 8 0 ffsino 272 3146 0 1732 95 0 95 95 0 8 0 nchpl 144 4863 0 3258 61 0 61 61 0 8 0 uvmvnodes 80 3472 0 0 71 0 71 71 0 8 0 vnodes 224 3472 0 0 205 0 205 205 0 8 0 namei 1024 13198 0 13198 2 1 1 1 0 8 1 percpumem 16 45 0 9 1 0 1 1 0 8 0 vcpupl 2048 4 0 0 1 0 1 1 0 8 0 vmpool 560 11 0 7 2 1 1 1 0 8 0 scxspl 216 15166 0 15166 9 8 1 7 0 8 1 plimitpl 152 94 0 83 1 0 1 1 0 8 0 sigapl 424 1590 0 1553 5 0 5 5 0 8 0 futexpl 64 8288 0 8287 2 1 1 1 0 8 0 knotepl 112 70 0 0 3 1 2 3 0 8 0 kqueuepl 216 107 0 101 1 0 1 1 0 8 0 pipepl 336 118 0 102 2 0 2 2 0 8 0 fdescpl 496 1575 0 1553 4 1 3 4 0 8 0 filepl 152 5324 0 5171 9 2 7 7 0 8 1 lockfpl 104 127 0 125 1 0 1 1 0 8 0 lockfspl 48 60 0 58 1 0 1 1 0 8 0 sessionpl 144 21 0 8 1 0 1 1 0 8 0 pgrppl 48 43 0 30 1 0 1 1 0 8 0 ucredpl 96 808 0 796 1 0 1 1 0 8 0 zombiepl 144 1553 0 1553 2 1 1 1 0 8 1 processpl 1064 1590 0 1553 3 0 3 3 0 8 0 procpl 672 3019 0 2972 5 0 5 5 0 8 0 sosppl 168 16 0 15 2 1 1 1 0 8 0 sockpl 480 1101 0 1074 9 4 5 5 0 8 1 mcl64k 65536 24 0 0 3 1 2 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 172 0 0 20 0 20 20 0 8 0 mtagpl 96 106 0 0 3 0 3 3 0 8 0 mbufpl 256 1072 0 0 66 0 66 66 0 8 0 bufpl 288 5523 0 145 385 0 385 385 0 8 0 anonpl 24 373006 0 362457 69 4 65 65 0 186 0 amapchunkpl 152 42010 0 41450 38 15 23 37 0 158 0 amappl16 200 3121 0 2849 16 1 15 16 0 8 0 amappl15 192 2 0 0 1 0 1 1 0 8 0 amappl14 184 2 0 1 1 0 1 1 0 8 0 amappl13 176 579 0 577 1 0 1 1 0 8 0 amappl12 168 20 0 18 1 0 1 1 0 8 0 amappl11 160 513 0 495 1 0 1 1 0 8 0 amappl10 152 47 0 40 1 0 1 1 0 8 0 amappl9 144 372 0 370 1 0 1 1 0 8 0 amappl8 136 717 0 670 2 0 2 2 0 8 0 amappl7 128 380 0 368 1 0 1 1 0 8 0 amappl6 120 159 0 143 1 0 1 1 0 8 0 amappl5 112 1005 0 986 1 0 1 1 0 8 0 amappl4 104 1531 0 1504 1 0 1 1 0 8 0 amappl3 96 367 0 351 1 0 1 1 0 8 0 amappl2 88 912 0 871 2 1 1 2 0 8 0 amappl1 80 29651 0 29156 13 2 11 13 0 8 0 amappl 88 16964 0 16780 5 0 5 5 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 63 0 0 2 0 2 2 0 8 0 uaddrrnd 24 1586 0 1560 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1586 0 1560 1 0 1 1 0 8 0 vmmpekpl 168 12132 0 12096 2 0 2 2 0 8 0 vmmpepl 168 141240 0 139457 92 10 82 84 0 357 1 vmsppl 368 1585 0 1560 3 0 3 3 0 8 0 rwobjpl 56 35808 0 31173 66 0 66 66 0 8 0 pdppl 4096 3180 0 3124 80 22 58 60 0 8 2 pvpl 32 794786 0 780532 159 40 119 141 0 265 0 pmappl 248 1585 0 1560 2 0 2 2 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 784 0 32 22 0 22 22 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pppacopen(86353,1,2000,ffff8000ffff5508) at pppacopen+0x1b5 sys/net/if_pppx.c:1020 spec_open(ffff80002167fb48) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd80696da5e0,1,fffffd807f7d76c0,ffff8000ffff5508) at VOP_OPEN+0x75 sys/kern/vfs_vops.c:138 vn_open(ffff80002167fd98,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff8000ffff5508,ffffff9c,20000780,0,0,ffff80002167ff80) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff80002167fff0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002167fff0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd8643774d60, count: -7 ddb{0}> machine ddbcpu 1