login: uvm_fault(0xffffffff824e95e8, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0x10e0: movq %rbx,0x8(%r13) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff824e95e8, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd805e4da300,0,ffff80001d376588,0,0,ffff80001d376494) at soreceive+0x10e0 sbsync sys/kern/uipc_socket.c:630 [inline] soreceive(fffffd805e4da300,0,ffff80001d376588,0,0,ffff80001d376494) at soreceive+0x10e0 sys/kern/uipc_socket.c:824 end trace frame: 0xffff80001d3764d0, count: 0 ddb> trace soreceive(fffffd805e4da300,0,ffff80001d376588,0,0,ffff80001d376494) at soreceive+0x10e0 sbsync sys/kern/uipc_socket.c:630 [inline] soreceive(fffffd805e4da300,0,ffff80001d376588,0,0,ffff80001d376494) at soreceive+0x10e0 sys/kern/uipc_socket.c:824 soo_read(fffffd805fee6780,ffff80001d376588,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff8000ffff9150,6,ffff80001d376588,0,ffff80001d376670) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236 sys_read(ffff8000ffff9150,ffff80001d376620,ffff80001d376670) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff80001d3766f0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff7750, count: -6 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001d376470 rbx 0xfffffd805f042400 rdx 0xffff80001d376220 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd0000000000 r8 0 r9 0x3 r10 0xeec7e4ed81867a8d r11 0xc17bda99977e8d22 r12 0xb66 r13 0xfffffd0000000000 r14 0 r15 0xfffffd805e4da300 rip 0xffffffff81d96b30 soreceive+0x10e0 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001d376380 ss 0x10 soreceive+0x10e0: movq %rbx,0x8(%r13) ddb> show proc PROC (dhclient) pid=254891 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8280,0xffff8000ffff93d8 process=0xffff8000ffff7118 user=0xffff80001d371000, vmspace=0xfffffd806bc12110 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 57337 155903 27911 0 3 0x82 thrsleep syz-execprog 57337 78518 27911 0 3 0x4000082 nanosleep syz-execprog 57337 244662 27911 0 3 0x4000082 thrsleep syz-execprog 57337 215532 27911 0 3 0x4000082 thrsleep syz-execprog 57337 72244 27911 0 3 0x4000082 wait syz-execprog 57337 79061 27911 0 3 0x4000082 thrsleep syz-execprog 57337 22691 27911 0 3 0x4000082 thrsleep syz-execprog 27911 71863 58159 0 3 0x10008a pause ksh 58159 427941 38811 0 3 0x92 select sshd 81128 405715 1 0 3 0x100083 ttyin getty 38811 127127 1 0 3 0x80 select sshd 12627 195855 6169 73 3 0x100090 kqread syslogd 6169 25838 1 0 3 0x100082 netio syslogd 15724 83479 1 77 2 0x100010 dhclient *96456 254891 1 0 7 0 dhclient 57244 406976 0 0 3 0x14200 pgzero zerothread 8168 462069 0 0 3 0x14200 aiodoned aiodoned 32479 522255 0 0 3 0x14200 syncer update 98416 159201 0 0 3 0x14200 cleaner cleaner 4570 343253 0 0 3 0x14200 reaper reaper 90919 14770 0 0 3 0x14200 pgdaemon pagedaemon 46362 77914 0 0 3 0x14200 bored crynlk 54666 268898 0 0 3 0x14200 bored crypto 32506 413174 0 0 3 0x40014200 acpi0 acpi0 98886 516119 0 0 2 0x14200 softnet 1793 71278 0 0 2 0x14200 systqmp 72215 7068 0 0 3 0x14200 bored systq 86017 401863 0 0 3 0x40014200 bored softclock 23297 160794 0 0 3 0x40014200 idle0 88037 11413 0 0 3 0x14200 bored smr 1 188820 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 9440 6321K 6321K 78643K 10539 0 pcb 13 8K 8K 78643K 13 0 rtable 63 1K 2K 78643K 157 0 ifaddr 24 7K 9K 78643K 33 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1180 74K 74K 78643K 1185 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 18 79K 79K 78643K 18 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 72 11K 12K 78643K 856 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 22 3017K 3081K 78643K 3059 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 11 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 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 166 0 0 11 0 11 11 0 8 0 art_table 32 167 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 1415 0 20 46 0 46 46 0 8 1 ffsino 240 1415 0 20 83 0 83 83 0 8 0 nchpl 144 1640 0 38 60 0 60 60 0 8 0 uvmvnodes 72 1424 0 0 26 0 26 26 0 8 0 vnodes 208 1424 0 0 75 0 75 75 0 8 0 namei 1024 3864 0 3864 1 0 1 1 0 8 1 scxspl 192 4021 0 4021 1 0 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 197 0 186 2 0 2 2 0 8 0 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 128 134 0 122 1 0 1 1 0 8 0 fdescpl 424 198 0 186 2 0 2 2 0 8 0 filepl 120 998 0 946 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 872 212 0 186 4 0 4 4 0 8 0 procpl 632 218 0 186 3 0 3 3 0 8 0 sockpl 384 71 0 55 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5481 0 5452 6 2 4 6 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9591 0 9511 7 0 7 7 0 8 0 bufpl 280 5846 0 1326 323 0 323 323 0 8 0 anonpl 16 20318 0 18840 14 1 13 13 0 107 6 amapchunkpl 152 770 0 711 5 0 5 5 0 158 2 amappl16 192 72 0 48 2 0 2 2 0 8 0 amappl15 184 50 0 46 1 0 1 1 0 8 0 amappl14 176 22 0 19 1 0 1 1 0 8 0 amappl12 160 6 0 5 1 0 1 1 0 8 0 amappl11 152 56 0 42 1 0 1 1 0 8 0 amappl10 144 12 0 11 1 0 1 1 0 8 0 amappl9 136 385 0 383 1 0 1 1 0 8 0 amappl8 128 85 0 75 1 0 1 1 0 8 0 amappl7 120 86 0 77 1 0 1 1 0 8 0 amappl6 112 57 0 54 1 0 1 1 0 8 0 amappl5 104 149 0 140 1 0 1 1 0 8 0 amappl4 96 431 0 403 1 0 1 1 0 8 0 amappl3 88 123 0 115 1 0 1 1 0 8 0 amappl2 80 834 0 776 3 0 3 3 0 8 1 amappl1 72 13746 0 13351 26 9 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 6058 0 6043 1 0 1 1 0 8 0 vmmpepl 168 29477 0 28609 83 5 78 78 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 103739 0 100008 114 0 114 114 0 265 82 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 112 122 0 4 4 0 4 4 0 8 0 ddb>