uvm_fault(0xffffffff827b26d8, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff827b26d8, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f682640,0,ffff800020e1eda8,0,0,ffff800020e1ecb4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 end trace frame: 0xffff800020e1ecf0, count: 0 ddb{0}> trace soreceive(fffffd806f682640,0,ffff800020e1eda8,0,0,ffff800020e1ecb4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd8075df6098,ffff800020e1eda8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1eda8,0,ffff800020e1ee90) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1ee40,ffff800020e1ee90) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ef10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ef10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1cf0, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1ec90 rbx 0xfffffd806f73b900 rdx 0x6fb74 acpi_pdirpa+0x5b9dc rcx 0 rax 0xfffffd806f682640 r8 0xffffffff81a9bf46 soreceive+0xbe6 r9 0x3 r10 0x645e47d5c22bafa6 r11 0x5311982afa61735f r12 0xfffffd0000000000 r13 0 r14 0x1 r15 0 rip 0xffffffff81a9c12d soreceive+0xdcd cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800020e1eba0 ss 0x10 soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{0}> show proc PROC (dhclient) pid=501247 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc9c8,0xffff800020ddd128 process=0xffff800020df0bb0 user=0xffff800020e19000, vmspace=0xfffffd807efff450 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 3810 338783 0 0 3 0x14280 nfsidl nfsio 80374 93755 0 0 3 0x14280 nfsidl nfsio 69310 154059 0 0 3 0x14280 nfsidl nfsio 82718 187358 0 0 3 0x14280 nfsidl nfsio 47809 111360 0 0 3 0x14280 nfsidl nfsio 18509 221412 0 0 3 0x14280 nfsidl nfsio 90284 275102 0 0 3 0x14280 nfsidl nfsio 92935 208079 0 0 3 0x14280 nfsidl nfsio 74890 215988 0 0 3 0x14280 nfsidl nfsio 17215 152398 0 0 3 0x14280 nfsidl nfsio 77235 489492 0 0 3 0x14280 nfsidl nfsio 2214 158489 0 0 3 0x14280 nfsidl nfsio 26389 18979 0 0 3 0x14280 nfsidl nfsio 24515 130206 0 0 3 0x14280 nfsidl nfsio 77581 124707 0 0 3 0x14280 nfsidl nfsio 90946 317541 0 0 3 0x14280 nfsidl nfsio 62583 254907 0 0 3 0x14280 nfsidl nfsio 51178 517921 0 0 3 0x14280 nfsidl nfsio 98542 332899 0 0 3 0x14280 nfsidl nfsio 3090 20496 0 0 3 0x14280 nfsidl nfsio 85027 465152 1 0 3 0x100083 ttyin getty 2154 345846 0 0 3 0x14200 bored sosplice 65738 342193 71069 0 3 0x82 piperd syz-executor.0 71069 54 65920 0 2 0x2 syz-fuzzer 71069 327051 65920 0 2 0x4000482 syz-fuzzer 71069 303993 65920 0 3 0x4000082 thrsleep syz-fuzzer 71069 15571 65920 0 3 0x4000082 thrsleep syz-fuzzer 71069 137037 65920 0 3 0x4000082 thrsleep syz-fuzzer 71069 141878 65920 0 3 0x4000082 thrsleep syz-fuzzer 71069 203802 65920 0 3 0x4000082 thrsleep syz-fuzzer 71069 386961 65920 0 3 0x4000082 thrsleep syz-fuzzer 71069 365935 65920 0 3 0x4000082 thrsleep syz-fuzzer 71069 77726 65920 0 7 0x4000002 syz-fuzzer 65920 360808 12126 0 3 0x10008a pause ksh 12126 446819 42585 0 3 0x92 select sshd 42585 426899 1 0 3 0x80 select sshd 63497 268426 35493 74 3 0x100092 bpf pflogd 35493 506876 1 0 3 0x80 netio pflogd 89608 477463 52889 73 3 0x100090 kqread syslogd 52889 208558 1 0 3 0x100082 netio syslogd 96589 67962 1 77 3 0x100090 poll dhclient *66472 501247 1 0 7 0 dhclient 81695 426214 0 0 3 0x14200 bored smr 66096 270846 0 0 2 0x14200 zerothread 56911 486534 0 0 3 0x14200 aiodoned aiodoned 26517 280253 0 0 3 0x14200 syncer update 18452 338558 0 0 3 0x14200 cleaner cleaner 33227 229771 0 0 3 0x14200 reaper reaper 6354 399631 0 0 3 0x14200 pgdaemon pagedaemon 90579 378218 0 0 3 0x14200 bored crynlk 94873 156502 0 0 3 0x14200 bored crypto 69438 509952 0 0 3 0x40014200 acpi0 acpi0 11054 82364 0 0 3 0x40014200 idle1 31305 222512 0 0 3 0x14200 bored softnet 6661 517389 0 0 3 0x14200 bored systqmp 20144 458129 0 0 3 0x14200 bored systq 17681 245536 0 0 3 0x40014200 bored softclock 95607 241486 0 0 3 0x40014200 idle0 1 126615 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 66472 (dhclient) thread 0xffff800020ddcea8 (501247) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9522 6417K 7314K 78643K 12688 0 pcb 13 8K 8K 78643K 59 0 rtable 89 4K 5K 78643K 331 0 ifaddr 69 13K 16K 78643K 114 0 sysctl 2 0K 0K 78643K 2 0 counters 41 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1546 0 iov 0 0K 18K 78643K 356 0 mount 1 1K 1K 78643K 1 0 vnodes 1226 77K 77K 78643K 1714 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 126 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 3 5K 25K 78643K 490 0 sigio 0 0K 0K 78643K 12 0 proc 61 63K 95K 78643K 482 0 subproc 16 1K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 30 0 in_multi 41 2K 3K 78643K 101 0 ether_multi 1 0K 0K 78643K 8 0 mrt 0 0K 0K 78643K 14 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 246 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 132 80K 88K 78643K 2464 0 UVM aobj 22 4K 4K 78643K 27 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 54 0 NDP 12 0K 0K 78643K 26 0 temp 119 3869K 3969K 78643K 5750 0 kqueue 3 4K 21K 78643K 37 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 7 0 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 45 0 43 1 0 1 1 0 8 0 rtentry 112 73 0 40 2 0 2 2 0 8 0 unpcb 120 237 0 227 1 0 1 1 0 8 0 syncache 264 8 0 8 3 2 1 1 0 8 1 tcpqe 32 61 0 61 1 1 0 1 0 8 0 tcpcb 544 138 0 134 1 0 1 1 0 8 0 inpcb 296 441 0 434 3 1 2 2 0 8 1 rttmr 72 6 0 6 2 2 0 1 0 8 0 nd6 48 19 0 16 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1136 2 0 2 1 1 0 1 0 8 0 pffrag 232 6 0 6 3 2 1 1 0 482 1 pffrnode 88 6 0 6 3 2 1 1 0 8 1 pffrent 40 227 0 227 3 2 1 1 0 8 1 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 59 0 24 1 0 1 1 0 8 0 pfstkey 112 59 0 24 2 0 2 2 0 8 0 pfstate 328 59 0 24 4 0 4 4 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 256 288 0 144 14 1 13 14 0 8 1 art_table 32 289 0 144 2 0 2 2 0 8 0 art_node 16 72 0 42 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 6 1 0 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 118 0 108 1 0 1 1 0 8 0 shmpl 112 24 0 5 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2005 0 604 89 1 88 89 0 8 0 ffsino 272 2005 0 604 94 0 94 94 0 8 0 nchpl 144 3035 0 1447 60 0 60 60 0 8 0 uvmvnodes 72 2488 0 0 46 0 46 46 0 8 0 vnodes 208 2488 0 0 131 0 131 131 0 8 0 namei 1024 8517 0 8517 1 0 1 1 0 8 1 percpumem 16 37 0 6 1 0 1 1 0 8 0 vcpupl 1984 7 0 0 1 0 1 1 0 8 0 vmpool 560 13 0 6 1 0 1 1 0 8 0 scxspl 192 8527 0 8527 8 7 1 7 0 8 1 plimitpl 152 32 0 25 1 0 1 1 0 8 0 sigapl 424 727 0 677 6 0 6 6 0 8 0 futexpl 56 8114 0 8114 1 0 1 1 0 8 1 knotepl 112 122 0 109 2 1 1 2 0 8 0 kqueuepl 144 95 0 91 1 0 1 1 0 8 0 pipepl 304 179 0 172 5 4 1 3 0 8 0 fdescpl 496 691 0 677 3 0 3 3 0 8 0 filepl 152 4242 0 4165 7 2 5 7 0 8 0 lockfpl 104 64 0 63 1 0 1 1 0 8 0 lockfspl 48 27 0 26 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 21 0 11 1 0 1 1 0 8 0 ucredpl 96 487 0 478 1 0 1 1 0 8 0 zombiepl 144 677 0 677 1 0 1 1 0 8 1 processpl 992 727 0 677 7 0 7 7 0 8 0 procpl 624 1688 0 1629 5 0 5 5 0 8 0 sosppl 128 11 0 11 4 3 1 1 0 8 1 sockpl 400 725 0 705 5 1 4 4 0 8 1 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 198 0 0 24 0 24 24 0 8 0 mtagpl 96 37 0 0 1 0 1 1 0 8 0 mbufpl 256 401 0 0 23 0 23 23 0 8 0 bufpl 280 4145 0 133 287 0 287 287 0 8 0 anonpl 16 79956 0 62540 88 17 71 87 0 124 0 amapchunkpl 152 3549 0 3392 14 7 7 12 0 158 0 amappl16 192 3220 0 2286 59 11 48 59 0 8 0 amappl15 184 106 0 104 2 1 1 1 0 8 0 amappl14 176 27 0 20 1 0 1 1 0 8 0 amappl13 168 385 0 383 1 0 1 1 0 8 0 amappl12 160 5 0 5 1 1 0 1 0 8 0 amappl11 152 56 0 40 1 0 1 1 0 8 0 amappl10 144 27 0 24 1 0 1 1 0 8 0 amappl9 136 390 0 388 1 0 1 1 0 8 0 amappl8 128 364 0 324 2 0 2 2 0 8 0 amappl7 120 118 0 106 1 0 1 1 0 8 0 amappl6 112 24 0 21 1 0 1 1 0 8 0 amappl5 104 595 0 579 1 0 1 1 0 8 0 amappl4 96 850 0 822 1 0 1 1 0 8 0 amappl3 88 113 0 108 1 0 1 1 0 8 0 amappl2 80 4704 0 4643 2 0 2 2 0 8 0 amappl1 72 29088 0 28664 22 11 11 18 0 8 0 amappl 80 1926 0 1880 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 26 0 5 1 0 1 1 0 8 0 uaddrrnd 24 704 0 683 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 704 0 683 1 0 1 1 0 8 0 vmmpekpl 168 9061 0 9020 3 0 3 3 0 8 0 vmmpepl 168 94384 0 92424 124 29 95 120 0 357 0 vmsppl 368 703 0 683 3 0 3 3 0 8 1 pdppl 4096 1415 0 1373 6 0 6 6 0 8 0 pvpl 32 252844 0 232553 201 32 169 201 0 265 3 pmappl 232 703 0 683 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 277 0 6 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f682640,0,ffff800020e1eda8,0,0,ffff800020e1ecb4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd8075df6098,ffff800020e1eda8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1eda8,0,ffff800020e1ee90) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1ee40,ffff800020e1ee90) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ef10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ef10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1cf0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d70ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4f kd_curproc sys/dev/kcov.c:416 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4f sys/dev/kcov.c:79 syscall(ffff800020e9ea50) at syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff800020e9ea50) at syscall+0x400 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc0003abef8, count: -6