uvm_fault(0xffffffff8253e7b0, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0xdbd: movq %rbx,0x8(%r12) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff8253e7b0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd8068a844b0,0,ffff80001d762548,0,0,ffff80001d762454) at soreceive+0xdbd sys/kern/uipc_socket.c:979 end trace frame: 0xffff80001d762490, count: 0 ddb> trace soreceive(fffffd8068a844b0,0,ffff80001d762548,0,0,ffff80001d762454) at soreceive+0xdbd sys/kern/uipc_socket.c:979 soo_read(fffffd805eb14690,ffff80001d762548,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d729278,6,ffff80001d762548,0,ffff80001d762630) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d729278,ffff80001d7625e0,ffff80001d762630) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d7626b0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd47f0, count: -6 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001d762430 rbx 0xfffffd80583ed300 rdx 0xffff80001d7621e0 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd8068a844b0 r8 0xffffffff821472c6 soreceive+0xbe6 r9 0x3 r10 0xe9b8fc4ed8453524 r11 0x8b582d07d745959e r12 0xfffffd0000000000 r13 0 r14 0x1 r15 0 rip 0xffffffff8214749d soreceive+0xdbd cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff80001d762340 ss 0x10 soreceive+0xdbd: movq %rbx,0x8(%r12) ddb> show proc PROC (dhclient) pid=483967 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d729ea8,0xffff80001d7294f8 process=0xffff8000ffffa740 user=0xffff80001d75d000, vmspace=0xfffffd806bc0a880 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 38085 90955 7046 0 2 0 syz-executor.0 38085 282014 7046 0 2 0x4000000 syz-executor.0 38085 329939 7046 0 2 0x4000000 syz-executor.0 50852 502950 22508 0 2 0 syz-executor.1 50852 213758 22508 0 3 0x4000080 kqread syz-executor.1 50852 501553 22508 0 3 0x4000080 fsleep syz-executor.1 22508 442959 97698 0 3 0x82 nanosleep syz-executor.1 22527 472918 0 0 3 0x14200 bored sosplice 7046 399569 97698 0 3 0x82 nanosleep syz-executor.0 97698 497584 58632 0 3 0x82 thrsleep syz-fuzzer 97698 66193 58632 0 3 0x4000082 nanosleep syz-fuzzer 97698 133916 58632 0 3 0x4000082 kqread syz-fuzzer 97698 247716 58632 0 3 0x4000082 thrsleep syz-fuzzer 97698 403915 58632 0 3 0x4000082 thrsleep syz-fuzzer 97698 26832 58632 0 3 0x4000082 thrsleep syz-fuzzer 97698 479427 58632 0 3 0x4000082 thrsleep syz-fuzzer 97698 400865 58632 0 3 0x4000082 thrsleep syz-fuzzer 58632 400762 81666 0 3 0x10008a pause ksh 81666 231222 5488 0 3 0x92 select sshd 47149 426101 1 0 3 0x100083 ttyin getty 5488 403293 1 0 3 0x80 select sshd 81185 276368 91529 73 2 0x100010 syslogd 91529 405235 1 0 3 0x100082 netio syslogd 49556 195123 1 77 2 0x100010 dhclient *97420 483967 1 0 7 0 dhclient 53383 422697 0 0 3 0x14200 bored smr 87261 96386 0 0 2 0x14200 zerothread 45988 434022 0 0 3 0x14200 aiodoned aiodoned 35406 323395 0 0 3 0x14200 syncer update 62757 461308 0 0 3 0x14200 cleaner cleaner 12061 393175 0 0 3 0x14200 reaper reaper 77157 225497 0 0 3 0x14200 pgdaemon pagedaemon 17823 326906 0 0 3 0x14200 bored crynlk 21667 507137 0 0 3 0x14200 bored crypto 96639 337644 0 0 3 0x40014200 acpi0 acpi0 6792 264224 0 0 3 0x14200 bored softnet 22097 102014 0 0 3 0x14200 bored systqmp 35198 321894 0 0 3 0x14200 bored systq 3298 172825 0 0 3 0x40014200 bored softclock 9897 86352 0 0 3 0x40014200 idle0 1 380218 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 9513 6347K 6728K 78643K 10960 0 pcb 13 8K 8K 78643K 67 0 rtable 114 5K 8K 78643K 449 0 ifaddr 81 15K 15K 78643K 131 0 sysctl 3 1K 1K 78643K 3 0 counters 21 16K 16K 78643K 23 0 ioctlops 0 0K 4K 78643K 56 0 iov 0 0K 16K 78643K 48 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1356 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 60 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 6 17K 25K 78643K 295 0 sigio 0 0K 0K 78643K 2 0 proc 49 38K 55K 78643K 436 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 1 0K 0K 78643K 219 0 in_multi 61 3K 3K 78643K 92 0 ether_multi 1 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 233 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 127 55K 55K 78643K 1679 0 UVM aobj 12 4K 4K 78643K 12 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 56 0 NDP 13 0K 0K 78643K 22 0 temp 111 3034K 3104K 78643K 11642 0 kqueue 4 6K 14K 78643K 107 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 arp 64 15 0 9 1 0 1 1 0 8 0 rtpcb 80 29 0 27 1 0 1 1 0 8 0 rtentry 112 83 0 39 2 0 2 2 0 8 0 unpcb 120 151 0 143 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 tcpqe 32 313 0 313 1 1 0 1 0 8 0 tcpcb 544 277 0 272 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 1 1 0 1 1 0 8 0 inpcb 280 468 0 460 2 0 2 2 0 8 1 nd6 48 12 0 6 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfrke_plain 160 3 0 0 1 0 1 1 0 8 0 pfrktable 1344 54 0 52 1 0 1 1 0 8 0 pftag 88 6 0 6 2 1 1 1 0 8 1 pfrule 1360 24 0 20 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 340 0 147 14 0 14 14 0 8 1 art_table 32 341 0 147 2 0 2 2 0 8 0 art_node 16 82 0 42 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 14 2 1 1 1 0 8 0 semapl 112 52 0 42 1 0 1 1 0 8 0 shmpl 112 10 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1785 0 385 88 0 88 88 0 8 0 ffsino 240 1785 0 385 83 0 83 83 0 8 0 nchpl 144 2360 0 767 60 0 60 60 0 8 0 rtmask 32 2 0 1 1 0 1 1 0 8 0 uvmvnodes 72 1918 0 0 35 0 35 35 0 8 0 vnodes 208 1918 0 0 101 0 101 101 0 8 0 namei 1024 6483 0 6483 3 2 1 1 0 8 1 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 16 0 14 1 0 1 1 0 8 0 scxspl 192 6546 0 6546 1 0 1 1 0 8 1 plimitpl 152 45 0 38 1 0 1 1 0 8 0 sigapl 424 479 0 449 4 0 4 4 0 8 0 futexpl 56 5639 0 5638 2 1 1 1 0 8 0 knotepl 112 188 0 168 1 0 1 1 0 8 0 kqueuepl 144 176 0 172 1 0 1 1 0 8 0 pipelkpl 16 250 0 238 1 0 1 1 0 8 0 pipepl 120 500 0 477 2 1 1 2 0 8 0 fdescpl 432 464 0 449 2 0 2 2 0 8 0 filepl 120 3130 0 3026 4 0 4 4 0 8 0 lockfpl 104 69 0 68 1 0 1 1 0 8 0 lockfspl 48 27 0 26 1 0 1 1 0 8 0 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 28 0 18 1 0 1 1 0 8 0 ucredpl 96 317 0 310 1 0 1 1 0 8 0 zombiepl 144 449 0 449 2 1 1 1 0 8 1 processpl 920 479 0 449 4 0 4 4 0 8 0 procpl 624 921 0 880 4 0 4 4 0 8 0 sosppl 128 7 0 7 2 2 0 1 0 8 0 sockpl 400 650 0 632 3 0 3 3 0 8 1 mcl64k 65536 26 0 23 3 2 1 1 0 8 0 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 6 0 6 3 3 0 1 0 8 0 mcl9k 9216 4 0 4 3 3 0 1 0 8 0 mcl8k 8192 10 0 10 5 4 1 1 0 8 1 mcl4k 4096 27 0 27 4 3 1 1 0 8 1 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 72538 0 72475 20 11 9 18 0 8 0 mtagpl 80 41 0 27 2 1 1 1 0 8 0 mbufpl 256 117228 0 117084 16 3 13 13 0 8 0 bufpl 280 3919 0 126 271 0 271 271 0 8 0 anonpl 16 59126 0 47131 78 14 64 77 0 107 0 amapchunkpl 152 2462 0 2328 9 2 7 8 0 158 1 amappl16 192 2302 0 1426 57 12 45 56 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 27 0 22 1 0 1 1 0 8 0 amappl13 168 43 0 38 1 0 1 1 0 8 0 amappl12 160 13 0 12 1 0 1 1 0 8 0 amappl11 152 167 0 158 1 0 1 1 0 8 0 amappl10 144 145 0 137 1 0 1 1 0 8 0 amappl9 136 366 0 365 1 0 1 1 0 8 0 amappl8 128 336 0 300 2 0 2 2 0 8 0 amappl7 120 236 0 221 1 0 1 1 0 8 0 amappl6 112 139 0 132 1 0 1 1 0 8 0 amappl5 104 409 0 396 1 0 1 1 0 8 0 amappl4 96 443 0 415 1 0 1 1 0 8 0 amappl3 88 106 0 101 1 0 1 1 0 8 0 amappl2 80 2821 0 2748 2 0 2 2 0 8 0 amappl1 72 18437 0 18002 22 13 9 17 0 8 0 amappl 80 1174 0 1127 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 18 0 17 1 0 1 1 0 8 0 aobjpl 64 11 0 0 1 0 1 1 0 8 0 uaddrrnd 24 468 0 449 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 468 0 449 1 0 1 1 0 8 0 vmmpekpl 168 7815 0 7786 3 1 2 2 0 8 0 vmmpepl 168 63010 0 60933 156 37 119 119 0 357 28 vmsppl 272 467 0 449 3 1 2 2 0 8 0 pdppl 4096 942 0 902 7 1 6 6 0 8 0 pvpl 32 184792 0 169678 185 17 168 182 0 265 15 pmappl 200 467 0 449 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 262 0 29 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace soreceive(fffffd8068a844b0,0,ffff80001d762548,0,0,ffff80001d762454) at soreceive+0xdbd sys/kern/uipc_socket.c:979 soo_read(fffffd805eb14690,ffff80001d762548,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d729278,6,ffff80001d762548,0,ffff80001d762630) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d729278,ffff80001d7625e0,ffff80001d762630) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d7626b0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd47f0, count: -6 ddb> machine ddbcpu 1 No such command ddb> trace soreceive(fffffd8068a844b0,0,ffff80001d762548,0,0,ffff80001d762454) at soreceive+0xdbd sys/kern/uipc_socket.c:979 soo_read(fffffd805eb14690,ffff80001d762548,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d729278,6,ffff80001d762548,0,ffff80001d762630) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d729278,ffff80001d7625e0,ffff80001d762630) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d7626b0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd47f0, count: -6