uvm_fault(0xffffffff82549818, 0xfffffd803d865460, 0, 4) -> e kernel: page fault trap, code=0 Stopped at 0xfffffd803d865460: addb %al,0(%rax) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff82549818, 0xfffffd803d865460, 0, 4) -> e fffffd803d865460(b,ffff800015950a98,83,ffff800015950b38,0,b) at 0xfffffd803d865460 end trace frame: 0xffff800015950b90, count: 0 ddb> trace fffffd803d865460(b,ffff800015950a98,83,ffff800015950b38,0,b) at 0xfffffd803d865460 rt_match(fffffd802d23bca0,0,1,0) at rt_match+0xbe rt_clone sys/net/route.c:266 [inline] rt_match(fffffd802d23bca0,0,1,0) at rt_match+0xbe sys/net/route.c:242 in_pcbselsrc(ffff800015950c10,fffffd803d052b20,fffffd802d23bc20) at in_pcbselsrc+0x219 sys/netinet/in_pcb.c:934 in_pcbconnect(fffffd802d23bc20,fffffd803d052b00) at in_pcbconnect+0x107 sys/netinet/in_pcb.c:492 udp_usrreq(fffffd802a2b41e0,4,0,fffffd803d052b00,0,ffff8000ffff3b40) at udp_usrreq+0x560 sys_connect(ffff8000ffff3b40,ffff800015950d98,ffff800015950de0) at sys_connect+0x3df sys/kern/uipc_syscalls.c:388 syscall(ffff800015950e60) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(0,0,fffffffffffffed2,0,3,c92bbc27010) at Xsyscall+0x128 end of kernel end trace frame: 0xc9525f407e0, count: -8 ddb> show registers rdi 0xffff800000ae2800 rsi 0xb rbp 0xffff800015950a80 rbx 0xfffffd803d354078 rdx 0xfffffd803d354078 rcx 0xffff800014931000 rax 0xffff800014931000 r8 0x100 r9 0x7 r10 0xed94d51cd842ea28 r11 0xfffffd803d865460 r12 0xfffffd803d354078 r13 0xffff800015950a98 r14 0xffff800015950b38 r15 0xffff80000005b770 rip 0xfffffd803d865460 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800015950988 ss 0x10 0xfffffd803d865460: addb %al,0(%rax) ddb> show proc PROC (syz-executor.1) pid=170659 stat=onproc flags process=0 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff38c8,0xffffffff8258d618 process=0xffff8000148a30f8 user=0xffff80001594b000, vmspace=0xfffffd803f013220 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 91601 321571 75475 0 2 0 syz-executor.1 *91601 170659 75475 0 7 0x4000000 syz-executor.1 75475 102597 93047 0 3 0x82 nanosleep syz-executor.1 12688 125787 93047 0 3 0x82 nanosleep syz-executor.0 52953 277276 0 0 3 0x14200 acct acct 52700 284204 0 0 3 0x14200 bored sosplice 93047 328684 81243 0 3 0x82 kqread syz-fuzzer 93047 178674 81243 0 3 0x4000082 thrsleep syz-fuzzer 93047 276406 81243 0 3 0x4000082 thrsleep syz-fuzzer 93047 60076 81243 0 3 0x4000082 thrsleep syz-fuzzer 93047 205310 81243 0 3 0x4000082 thrsleep syz-fuzzer 93047 77327 81243 0 3 0x4000082 thrsleep syz-fuzzer 93047 177358 81243 0 3 0x4000082 thrsleep syz-fuzzer 93047 395553 81243 0 3 0x4000082 thrsleep syz-fuzzer 81243 262709 30029 0 3 0x10008a pause ksh 30029 338755 70459 0 3 0x92 select sshd 11543 500037 1 0 3 0x100083 ttyin getty 70459 212138 1 0 3 0x80 select sshd 80567 110684 28703 73 3 0x100090 kqread syslogd 28703 80701 1 0 3 0x100082 netio syslogd 64547 438565 1 77 3 0x100090 poll dhclient 53552 441482 1 0 3 0x80 poll dhclient 42111 150742 0 0 2 0x14200 zerothread 44695 145128 0 0 3 0x14200 aiodoned aiodoned 61230 31802 0 0 3 0x14200 syncer update 32920 347351 0 0 3 0x14200 cleaner cleaner 44616 493786 0 0 3 0x14200 reaper reaper 46516 499992 0 0 3 0x14200 pgdaemon pagedaemon 61340 419323 0 0 3 0x14200 bored crynlk 97714 58711 0 0 3 0x14200 bored crypto 41600 339627 0 0 3 0x40014200 acpi0 acpi0 41609 336256 0 0 3 0x14200 bored softnet 9507 352520 0 0 3 0x14200 bored systqmp 97384 466106 0 0 3 0x14200 bored systq 90476 103045 0 0 3 0x40014200 bored softclock 29236 422829 0 0 3 0x40014200 idle0 91259 295636 0 0 3 0x14200 bored smr 1 120568 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 Kern Lim devbuf 9564 7007K 7633K 78643K 14532 0 0 pcb 13 13K 15K 78643K 407 0 0 rtable 119 5K 6K 78643K 1600 0 0 ifaddr 84 18K 18K 78643K 399 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 107 0 0 iov 0 0K 24K 78643K 684 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1220 77K 77K 78643K 3015 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 41 0 0 VM map 12 3K 3K 78643K 14 0 0 sem 12 0K 1K 78643K 374 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 1952 0 0 sigio 0 0K 0K 78643K 35 0 0 proc 50 46K 63K 78643K 1170 0 0 subproc 32 2K 2K 78643K 289 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 158 0 0 in_multi 33 2K 2K 78643K 319 0 0 ether_multi 1 0K 0K 78643K 19 0 0 mrt 0 0K 0K 78643K 15 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 96 424K 424K 78643K 96 0 0 exec 0 0K 1K 78643K 622 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 121 119K 124K 78643K 5837 0 0 UVM aobj 117 3K 3K 78643K 129 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 433 0 0 NDP 19 0K 0K 78643K 134 0 0 temp 219 3544K 4184K 78643K 47031 0 0 kqueue 0 0K 0K 78643K 20 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 66 0 60 1 0 1 1 0 8 0 rtpcb 80 247 0 245 1 0 1 1 0 8 0 rtentry 112 345 0 300 2 0 2 2 0 8 0 unpcb 120 1248 0 1233 2 1 1 2 0 8 0 syncache 264 16 0 16 6 5 1 1 0 8 1 sackhl 24 2 0 2 1 1 0 1 0 8 0 tcpqe 32 68 0 68 3 3 0 1 0 8 0 tcpcb 544 902 0 898 18 17 1 15 0 8 0 ipq 40 7 0 7 5 4 1 1 0 8 1 ipqe 40 100 0 100 5 4 1 1 0 8 1 inpcb 280 4141 0 4132 23 21 2 13 0 8 0 rttmr 72 4 0 4 2 2 0 1 0 8 0 nd6 48 46 0 43 2 1 1 1 0 8 0 pkpcb 40 4 0 4 2 2 0 1 0 8 0 swfcl 56 1 0 0 1 0 1 1 0 8 0 ppxss 1128 36 0 36 5 4 1 1 0 8 1 art_heap8 4096 14 0 13 4 3 1 3 0 8 0 art_heap4 256 1450 0 1236 27 13 14 17 0 8 0 art_table 32 1464 0 1249 3 1 2 3 0 8 0 art_node 16 343 0 301 1 0 1 1 0 8 0 sysvmsgpl 40 74 0 43 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 372 0 362 1 0 1 1 0 8 0 shmpl 112 127 0 12 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 4420 0 3021 46 0 46 46 0 8 0 ffsino 240 4420 0 3021 83 0 83 83 0 8 0 nchpl 144 7644 0 6032 60 0 60 60 0 8 0 uvmvnodes 72 5612 0 0 103 0 103 103 0 8 0 vnodes 208 5612 0 0 296 0 296 296 0 8 0 namei 1024 26644 0 26644 2 1 1 1 0 8 1 vcpupl 1984 10 0 0 2 0 2 2 0 8 0 vmpool 520 12 0 2 1 0 1 1 0 8 0 scsiplug 64 4 0 4 3 3 0 1 0 8 0 scxspl 192 25558 0 25558 18 17 1 7 0 8 1 plimitpl 152 145 0 138 1 0 1 1 0 8 0 sigapl 432 2078 0 2065 2 0 2 2 0 8 0 futexpl 56 58987 0 58987 1 0 1 1 0 8 1 knotepl 112 980 0 961 2 1 1 2 0 8 0 kqueuepl 104 1587 0 1585 5 4 1 4 0 8 0 pipepl 112 1268 0 1249 6 4 2 2 0 8 1 fdescpl 424 2079 0 2065 2 0 2 2 0 8 0 filepl 120 20346 0 20242 26 21 5 11 0 8 1 lockfpl 104 1164 0 1163 1 0 1 1 0 8 0 lockfspl 48 409 0 408 1 0 1 1 0 8 0 sessionpl 112 32 0 22 1 0 1 1 0 8 0 pgrppl 48 47 0 36 1 0 1 1 0 8 0 ucredpl 96 3993 0 3986 1 0 1 1 0 8 0 zombiepl 144 2065 0 2064 2 1 1 1 0 8 0 processpl 864 2095 0 2064 4 0 4 4 0 8 0 procpl 632 4399 0 4360 6 2 4 5 0 8 0 sosppl 128 19 0 19 6 6 0 1 0 8 0 sockpl 384 5684 0 5658 35 31 4 21 0 8 1 mcl64k 65536 472 0 472 35 34 1 33 0 8 1 mcl16k 16384 44 0 44 4 4 0 1 0 8 0 mcl12k 12288 80 0 80 3 2 1 1 0 8 1 mcl9k 9216 31 0 31 7 6 1 1 0 8 1 mcl8k 8192 135 0 135 2 1 1 1 0 8 1 mcl4k 4096 214 0 214 2 1 1 1 0 8 1 mcl2k2 2112 11 0 11 6 6 0 1 0 8 0 mcl2k 2048 70236 0 70193 19 12 7 12 0 8 1 mtagpl 80 95 0 91 5 4 1 1 0 8 0 mbufpl 256 133183 0 133084 41 29 12 20 0 8 2 bufpl 256 13524 0 8104 339 0 339 339 0 8 0 anonpl 16 286432 0 269519 140 60 80 95 0 62 5 amapchunkpl 152 11507 0 11396 32 23 9 15 0 158 4 amappl16 192 12724 0 11644 127 64 63 67 0 8 8 amappl15 184 272 0 270 1 0 1 1 0 8 0 amappl14 176 420 0 415 2 1 1 1 0 8 0 amappl13 168 649 0 648 4 3 1 1 0 8 0 amappl12 160 326 0 324 1 0 1 1 0 8 0 amappl11 152 317 0 306 1 0 1 1 0 8 0 amappl10 144 27 0 24 1 0 1 1 0 8 0 amappl9 136 781 0 773 1 0 1 1 0 8 0 amappl8 128 325 0 287 2 0 2 2 0 8 0 amappl7 120 116 0 107 1 0 1 1 0 8 0 amappl6 112 288 0 280 1 0 1 1 0 8 0 amappl5 104 688 0 679 1 0 1 1 0 8 0 amappl4 96 2257 0 2228 1 0 1 1 0 8 0 amappl3 88 678 0 671 1 0 1 1 0 8 0 amappl2 80 15488 0 15415 4 2 2 3 0 8 0 amappl1 72 48274 0 47867 28 19 9 20 0 8 0 amappl 80 4876 0 4832 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 17 0 17 1 1 0 1 0 8 0 aobjpl 64 128 0 12 2 0 2 2 0 8 0 uaddrrnd 24 2091 0 2065 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2091 0 2065 1 0 1 1 0 8 0 vmmpekpl 168 17169 0 17137 2 0 2 2 0 8 0 vmmpepl 168 264054 0 261873 206 70 136 140 0 357 33 vmsppl 272 2078 0 2065 4 3 1 2 0 8 0 pdppl 4096 4188 0 4144 7 1 6 6 0 8 0 pvpl 32 718848 0 699629 272 82 190 220 0 265 21 pmappl 200 2090 0 2067 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 592 0 121 14 0 14 14 0 8 0