uvm_fault(0xffffffff8252ad50, 0xfffffd0000000008, 0, 1) -> e kernel: page fault trap, code=0 Stopped at soreceive+0x10f0: cmpq $0,0x8(%rbx) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff8252ad50, 0xfffffd0000000008, 0, 1) -> e soreceive(fffffd805e562190,0,ffff80001d3728c8,0,0,ffff80001d3727d4) at soreceive+0x10f0 sbsync sys/kern/uipc_socket.c:669 [inline] soreceive(fffffd805e562190,0,ffff80001d3728c8,0,0,ffff80001d3727d4) at soreceive+0x10f0 sys/kern/uipc_socket.c:849 end trace frame: 0xffff80001d372810, count: 0 ddb> trace soreceive(fffffd805e562190,0,ffff80001d3728c8,0,0,ffff80001d3727d4) at soreceive+0x10f0 sbsync sys/kern/uipc_socket.c:669 [inline] soreceive(fffffd805e562190,0,ffff80001d3728c8,0,0,ffff80001d3727d4) at soreceive+0x10f0 sys/kern/uipc_socket.c:849 soo_read(fffffd805f5f2168,ffff80001d3728c8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d339ea8,6,ffff80001d3728c8,0,ffff80001d3729b0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d339ea8,ffff80001d372960,ffff80001d3729b0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d372a30) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe4e00, count: -6 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001d3727b0 rbx 0xfffffd0000000000 rdx 0xffff80001d372560 rcx 0x1000 __ALIGN_SIZE rax 0 r8 0 r9 0x3 r10 0x9f26f05c06f082e6 r11 0x489151950fb94b5b r12 0xb5e r13 0 r14 0 r15 0xfffffd805e562190 rip 0xffffffff821557a0 soreceive+0x10f0 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff80001d3726c0 ss 0x10 soreceive+0x10f0: cmpq $0,0x8(%rbx) ddb> show proc PROC (dhclient) pid=160304 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d3394e8,0xffff80001d33a398 process=0xffff8000ffffaa90 user=0xffff80001d36d000, vmspace=0xfffffd806bc0a220 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 87477 199651 93288 0 3 0x82 wait syz-execprog 87477 238261 93288 0 3 0x4000082 thrsleep syz-execprog 87477 408071 93288 0 3 0x4000082 thrsleep syz-execprog 87477 489946 93288 0 3 0x4000082 thrsleep syz-execprog 87477 165265 93288 0 3 0x4000082 thrsleep syz-execprog 87477 362894 93288 0 3 0x4000082 kqread syz-execprog 87477 50875 93288 0 3 0x4000082 thrsleep syz-execprog 93288 311411 64707 0 3 0x10008a pause ksh 64707 128125 2304 0 3 0x92 select sshd 90583 501159 1 0 3 0x100083 ttyin getty 2304 67138 1 0 3 0x80 select sshd 91 446692 73804 73 3 0x100090 kqread syslogd 73804 146945 1 0 3 0x100082 netio syslogd 89327 292949 1 77 2 0x100010 dhclient *29784 160304 1 0 7 0 dhclient 6415 396048 0 0 3 0x14200 bored smr 12622 100676 0 0 3 0x14200 pgzero zerothread 13720 273465 0 0 3 0x14200 aiodoned aiodoned 43201 173034 0 0 3 0x14200 syncer update 96080 429561 0 0 3 0x14200 cleaner cleaner 84119 402936 0 0 3 0x14200 reaper reaper 37604 75966 0 0 3 0x14200 pgdaemon pagedaemon 34820 45621 0 0 3 0x14200 bored crynlk 69464 436425 0 0 3 0x14200 bored crypto 78980 300312 0 0 3 0x40014200 acpi0 acpi0 71916 213110 0 0 2 0x14200 softnet 93303 422762 0 0 2 0x14200 systqmp 69430 73466 0 0 3 0x14200 bored systq 7259 278643 0 0 3 0x40014200 bored softclock 30069 117694 0 0 3 0x40014200 idle0 1 476280 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 9441 6321K 6321K 78643K 10540 0 pcb 13 8K 8K 78643K 13 0 rtable 61 1K 2K 78643K 155 0 ifaddr 24 7K 9K 78643K 33 0 counters 19 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1182 74K 74K 78643K 1187 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 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 2 4K 12K 78643K 18 0 proc 47 38K 54K 78643K 318 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 1K 78643K 22 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 1K 78643K 171 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 67 11K 12K 78643K 838 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 3 0K 0K 78643K 6 0 temp 18 3005K 3069K 78643K 1666 0 kqueue 3 4K 4K 78643K 3 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 4 0 2 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 12 1 0 1 1 0 8 0 unpcb 120 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 0 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 27 0 21 1 0 1 1 0 8 0 nd6 48 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 144 0 0 9 0 9 9 0 8 0 art_table 32 145 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1414 0 20 45 0 45 45 0 8 0 ffsino 240 1414 0 20 83 0 83 83 0 8 1 nchpl 144 1639 0 38 60 0 60 60 0 8 0 uvmvnodes 72 1423 0 0 26 0 26 26 0 8 0 vnodes 208 1423 0 0 75 0 75 75 0 8 0 namei 1024 3833 0 3833 1 0 1 1 0 8 1 scxspl 192 4347 0 4347 1 0 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 212 0 186 4 0 4 4 0 8 0 knotepl 112 39 0 30 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipelkpl 16 67 0 61 1 0 1 1 0 8 0 pipepl 120 134 0 123 1 0 1 1 0 8 0 fdescpl 432 198 0 186 2 0 2 2 0 8 0 filepl 120 964 0 913 2 0 2 2 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 187 0 186 1 0 1 1 0 8 0 processpl 896 212 0 186 4 0 4 4 0 8 0 procpl 624 218 0 186 3 0 3 3 0 8 0 sockpl 400 71 0 55 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5509 0 5481 6 1 5 6 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9559 0 9481 8 1 7 7 0 8 0 bufpl 280 3649 0 161 250 0 250 250 0 8 0 anonpl 16 20372 0 18928 15 2 13 13 0 107 6 amapchunkpl 152 725 0 664 5 0 5 5 0 158 2 amappl16 192 118 0 93 2 0 2 2 0 8 0 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 2 0 1 2 1 1 1 0 8 0 amappl13 168 18 0 17 1 0 1 1 0 8 0 amappl12 160 15 0 10 1 0 1 1 0 8 0 amappl11 152 68 0 55 1 0 1 1 0 8 0 amappl10 144 11 0 8 1 0 1 1 0 8 0 amappl9 136 216 0 214 1 0 1 1 0 8 0 amappl8 128 230 0 223 1 0 1 1 0 8 0 amappl7 120 103 0 93 1 0 1 1 0 8 0 amappl6 112 20 0 18 1 0 1 1 0 8 0 amappl5 104 154 0 144 1 0 1 1 0 8 0 amappl4 96 448 0 420 1 0 1 1 0 8 0 amappl3 88 112 0 107 1 0 1 1 0 8 0 amappl2 80 830 0 777 3 0 3 3 0 8 1 amappl1 72 13388 0 13008 27 10 17 20 0 8 8 amappl 80 418 0 393 1 0 1 1 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 198 0 186 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 198 0 186 1 0 1 1 0 8 0 vmmpekpl 168 6038 0 6018 1 0 1 1 0 8 0 vmmpepl 168 29124 0 28300 84 8 76 76 0 357 39 vmsppl 272 197 0 186 1 0 1 1 0 8 0 pdppl 4096 402 0 372 5 0 5 5 0 8 0 pvpl 32 103223 0 99543 113 0 113 113 0 265 81 pmappl 200 197 0 186 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 126 0 4 4 0 4 4 0 8 0 ddb>