uvm_fault(0xffffffff82622db0, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff82622db0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f6cc180,0,ffff800020aa5d38,0,0,ffff800020aa5c44) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:630 [inline] soreceive(fffffd806f6cc180,0,ffff800020aa5d38,0,0,ffff800020aa5c44) at soreceive+0x1100 sys/kern/uipc_socket.c:824 end trace frame: 0xffff800020aa5c80, count: 0 ddb{1}> trace soreceive(fffffd806f6cc180,0,ffff800020aa5d38,0,0,ffff800020aa5c44) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:630 [inline] soreceive(fffffd806f6cc180,0,ffff800020aa5d38,0,0,ffff800020aa5c44) at soreceive+0x1100 sys/kern/uipc_socket.c:824 soo_read(fffffd806fc0c428,ffff800020aa5d38,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020a5eed8,6,ffff800020aa5d38,0,ffff800020aa5e20) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236 sys_read(ffff800020a5eed8,ffff800020aa5dd0,ffff800020aa5e20) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff800020aa5ea0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800020aa5ea0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,3,7f7ffffbfe28,3,c4e63b78,1f3998e84000) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbfb60, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020aa5c20 rbx 0xfffffd806f212300 rdx 0x2d1ce acpi_pdirpa+0x19036 rcx 0 rax 0 r8 0xffffffff819f2631 soreceive+0x5c1 r9 0x3 r10 0x9242326d6b87005b r11 0xbb1111e0358738d8 r12 0x2fd r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f6cc180 rip 0xffffffff819f3170 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020aa5b30 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=498990 stat=onproc flags process=0 proc=0 pri=51, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020a5e4f8,0xffff800020a5f650 process=0xffff800020a8a710 user=0xffff800020aa0000, vmspace=0xfffffd807f00a000 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 86176 500500 27279 0 2 0 syz-executor.0 24668 416092 9478 0 2 0 syz-executor.1 24668 45615 9478 0 7 0x4000080 syz-executor.1 4752 426729 0 0 3 0x14200 bored sosplice 9478 46330 20147 0 3 0x82 nanosleep syz-executor.1 27279 261422 20147 0 3 0x82 nanosleep syz-executor.0 20147 146626 20725 0 3 0x82 thrsleep syz-fuzzer 20147 98361 20725 0 3 0x4000082 nanosleep syz-fuzzer 20147 230798 20725 0 3 0x4000082 thrsleep syz-fuzzer 20147 319107 20725 0 3 0x4000082 thrsleep syz-fuzzer 20147 524048 20725 0 3 0x4000082 thrsleep syz-fuzzer 20147 24309 20725 0 3 0x4000082 nanosleep syz-fuzzer 20147 133326 20725 0 3 0x4000082 thrsleep syz-fuzzer 20147 26136 20725 0 3 0x4000082 thrsleep syz-fuzzer 20147 387638 20725 0 3 0x4000082 kqread syz-fuzzer 20147 345853 20725 0 3 0x4000082 thrsleep syz-fuzzer 20725 485319 70228 0 3 0x10008a pause ksh 70228 95652 77467 0 3 0x92 select sshd 78037 45141 1 0 3 0x100083 ttyin getty 77467 256270 1 0 3 0x80 select sshd 48138 41837 32981 74 3 0x100092 bpf pflogd 32981 388944 1 0 3 0x80 netio pflogd 21044 347495 84489 73 3 0x100090 kqread syslogd 84489 215549 1 0 3 0x100082 netio syslogd 40536 407530 1 77 3 0x100090 poll dhclient *47875 498990 1 0 7 0 dhclient 68160 83169 0 0 2 0x14200 zerothread 10783 340182 0 0 3 0x14200 aiodoned aiodoned 24662 143133 0 0 3 0x14200 syncer update 96856 298992 0 0 3 0x14200 cleaner cleaner 96649 359594 0 0 3 0x14200 reaper reaper 7066 461210 0 0 3 0x14200 pgdaemon pagedaemon 31200 85413 0 0 3 0x14200 bored crynlk 22581 453953 0 0 3 0x14200 bored crypto 81925 238912 0 0 3 0x40014200 acpi0 acpi0 66056 288498 0 0 3 0x40014200 idle1 1625 518967 0 0 3 0x14200 bored softnet 56965 83814 0 0 3 0x14200 bored systqmp 65103 220293 0 0 3 0x14200 bored systq 79163 192063 0 0 3 0x40014200 bored softclock 34768 329545 0 0 3 0x40014200 idle0 82617 440947 0 0 3 0x14200 bored smr 1 356432 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 47875 (dhclient) thread 0xffff800020a5eed8 (498990) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82669b48) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 solock+0x66 sys/kern/uipc_socket2.c:292 #2 soreceive+0x114 sys/kern/uipc_socket.c:706 #3 soo_read+0x53 sys/kern/sys_socket.c:70 #4 dofilereadv+0x1a2 sys/kern/sys_generic.c:236 #5 sys_read+0x83 sys/kern/sys_generic.c:156 #6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9526 6536K 6855K 78643K 11033 0 0 pcb 13 8K 8K 78643K 57 0 0 rtable 93 4K 4K 78643K 306 0 0 ifaddr 59 12K 12K 78643K 86 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1473 0 0 iov 0 0K 12K 78643K 34 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1229 77K 77K 78643K 1344 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 4 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 75 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 164 0 0 sigio 0 0K 0K 78643K 9 0 0 proc 61 63K 95K 78643K 447 0 0 subproc 32 2K 2K 78643K 34 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 25 0 0 in_multi 22 1K 2K 78643K 47 0 0 ether_multi 1 0K 0K 78643K 4 0 0 mrt 0 0K 0K 78643K 2 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 42 185K 185K 78643K 42 0 0 exec 0 0K 1K 78643K 216 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 114 22K 31K 78643K 1509 0 0 UVM aobj 23 4K 4K 78643K 23 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 33 0 0 NDP 13 0K 0K 78643K 22 0 0 temp 179 3559K 3626K 78643K 4985 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 11 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 43 0 41 1 0 1 1 0 8 0 rtentry 112 55 0 20 2 0 2 2 0 8 0 unpcb 120 135 0 125 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpqe 32 72 0 72 1 1 0 1 0 8 0 tcpcb 544 76 0 72 2 0 2 2 0 8 1 inpcb 280 429 0 422 4 0 4 4 0 8 3 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 4 0 2 1 0 1 1 0 8 0 ppxss 1128 5 0 4 1 0 1 1 0 8 0 pffrag 232 4 0 4 1 1 0 1 0 482 0 pffrnode 88 4 0 4 1 1 0 1 0 8 0 pffrent 40 152 0 152 1 1 0 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 33 0 2 1 0 1 1 0 8 0 pfstkey 112 33 0 2 1 0 1 1 0 8 0 pfstate 328 33 0 2 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 230 0 54 14 0 14 14 0 8 0 art_table 32 231 0 54 2 0 2 2 0 8 0 art_node 16 54 0 22 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 11 1 0 1 1 0 8 0 semapl 112 69 0 59 1 0 1 1 0 8 0 shmpl 112 21 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1659 0 248 46 0 46 46 0 8 0 ffsino 272 1659 0 248 95 0 95 95 0 8 0 nchpl 144 2113 0 505 61 0 61 61 0 8 0 uvmvnodes 72 1797 0 0 33 0 33 33 0 8 0 vnodes 208 1797 0 0 95 0 95 95 0 8 0 namei 1024 5803 0 5803 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 6159 0 6159 8 5 3 7 0 8 3 plimitpl 152 27 0 19 1 0 1 1 0 8 0 sigapl 432 362 0 346 3 1 2 3 0 8 0 futexpl 56 4194 0 4194 1 0 1 1 0 8 1 knotepl 112 60 0 41 1 0 1 1 0 8 0 kqueuepl 104 36 0 34 1 0 1 1 0 8 0 pipepl 112 248 0 229 2 0 2 2 0 8 1 fdescpl 488 363 0 346 3 0 3 3 0 8 0 filepl 152 2606 0 2505 7 0 7 7 0 8 3 lockfpl 104 45 0 44 1 0 1 1 0 8 0 lockfspl 48 17 0 16 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 26 0 15 1 0 1 1 0 8 0 ucredpl 96 216 0 206 1 0 1 1 0 8 0 zombiepl 144 346 0 346 1 0 1 1 0 8 1 processpl 896 379 0 346 4 0 4 4 0 8 0 procpl 632 723 0 680 5 0 5 5 0 8 1 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 22 0 22 1 0 1 1 0 8 1 sockpl 384 610 0 591 8 0 8 8 0 8 6 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 202 0 0 25 0 25 25 0 8 0 mtagpl 80 25 0 0 1 0 1 1 0 8 0 mbufpl 256 241 0 0 15 0 15 15 0 8 0 bufpl 256 6782 0 1312 342 0 342 342 0 8 0 anonpl 16 53949 0 34438 84 2 82 83 0 124 3 amapchunkpl 152 2438 0 2276 16 2 14 14 0 158 6 amappl16 192 1792 0 720 54 0 54 54 0 8 0 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 115 0 107 1 0 1 1 0 8 0 amappl13 168 4 0 3 1 0 1 1 0 8 0 amappl12 160 71 0 67 1 0 1 1 0 8 0 amappl11 152 56 0 40 1 0 1 1 0 8 0 amappl10 144 22 0 16 1 0 1 1 0 8 0 amappl9 136 601 0 598 1 0 1 1 0 8 0 amappl8 128 174 0 148 1 0 1 1 0 8 0 amappl7 120 37 0 33 1 0 1 1 0 8 0 amappl6 112 59 0 51 1 0 1 1 0 8 0 amappl5 104 202 0 187 1 0 1 1 0 8 0 amappl4 96 630 0 598 1 0 1 1 0 8 0 amappl3 88 191 0 184 1 0 1 1 0 8 0 amappl2 80 2019 0 1945 3 1 2 3 0 8 0 amappl1 72 17789 0 17349 25 15 10 20 0 8 0 amappl 80 994 0 945 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 22 0 0 1 0 1 1 0 8 0 uaddrrnd 24 363 0 346 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 363 0 346 1 0 1 1 0 8 0 vmmpekpl 168 7139 0 7106 2 0 2 2 0 8 0 vmmpepl 168 52217 0 49932 136 11 125 130 0 357 25 vmsppl 368 362 0 346 2 0 2 2 0 8 0 pdppl 4096 733 0 692 6 0 6 6 0 8 0 pvpl 32 174457 0 151666 197 1 196 197 0 265 9 pmappl 232 362 0 346 2 1 1 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 515 0 3 15 0 15 15 0 8 0