uvm_fault(0xffffffff82851588, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff82851588, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68b320,0,ffff800020e1d358,0,0,ffff800020e1d264) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68b320,0,ffff800020e1d358,0,0,ffff800020e1d264) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d2a0, count: 0 ddb{0}> trace soreceive(fffffd806f68b320,0,ffff800020e1d358,0,0,ffff800020e1d264) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68b320,0,ffff800020e1d358,0,0,ffff800020e1d264) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8076ff7000,ffff800020e1d358,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1d358,0,ffff800020e1d440) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1d3f0,ffff800020e1d440) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d4c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d4c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc7d30, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d240 rbx 0xfffffd807720db00 rdx 0x59046 acpi_pdirpa+0x44eae rcx 0 rax 0 r8 0xffffffff81628ea1 soreceive+0x5c1 r9 0x3 r10 0x6841e010355a6704 r11 0x5ec1b8a74cf734f4 r12 0x4d2 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f68b320 rip 0xffffffff816299e0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d150 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=316864 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc9c8,0xffff800020ddd398 process=0xffff800020df0f70 user=0xffff800020e18000, vmspace=0xfffffd807f0002e0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 58819 37373 0 0 3 0x14280 nfsidl nfsio 36088 432304 0 0 3 0x14280 nfsidl nfsio 51922 77227 0 0 3 0x14280 nfsidl nfsio 51425 126394 0 0 3 0x14280 nfsidl nfsio 24200 32165 0 0 3 0x14280 nfsidl nfsio 2438 75166 0 0 3 0x14280 nfsidl nfsio 54646 477451 0 0 3 0x14280 nfsidl nfsio 57442 424301 0 0 3 0x14280 nfsidl nfsio 47549 152622 0 0 3 0x14280 nfsidl nfsio 48582 458210 0 0 3 0x14280 nfsidl nfsio 65789 297764 0 0 3 0x14280 nfsidl nfsio 65888 350149 0 0 3 0x14280 nfsidl nfsio 15736 70791 0 0 3 0x14280 nfsidl nfsio 83951 181063 0 0 3 0x14280 nfsidl nfsio 34772 436407 0 0 3 0x14280 nfsidl nfsio 81104 52191 0 0 3 0x14280 nfsidl nfsio 8784 372740 0 0 3 0x14280 nfsidl nfsio 80532 349024 0 0 3 0x14280 nfsidl nfsio 32819 379841 0 0 3 0x14280 nfsidl nfsio 27551 81206 0 0 3 0x14280 nfsidl nfsio 86992 325569 0 0 3 0x14200 bored sosplice 36612 475361 1 0 3 0x100083 ttyin getty 94600 405314 0 0 3 0x14200 acct acct 62968 261366 13421 0 3 0x82 piperd syz-executor.1 13421 469916 67694 0 2 0x2 syz-fuzzer 13421 179541 67694 0 3 0x4000082 nanosleep syz-fuzzer 13421 128949 67694 0 3 0x4000082 thrsleep syz-fuzzer 13421 414323 67694 0 3 0x4000082 thrsleep syz-fuzzer 13421 227309 67694 0 3 0x4000082 thrsleep syz-fuzzer 13421 197552 67694 0 3 0x4000082 thrsleep syz-fuzzer 13421 132804 67694 0 3 0x4000082 thrsleep syz-fuzzer 13421 191404 67694 0 3 0x4000082 thrsleep syz-fuzzer 13421 489199 67694 0 2 0x4000002 syz-fuzzer 13421 23938 67694 0 3 0x4000082 thrsleep syz-fuzzer 67694 80932 34581 0 3 0x10008a pause ksh 34581 417951 66444 0 3 0x92 select sshd 66444 130305 1 0 3 0x80 select sshd 14995 46073 85022 74 3 0x100092 bpf pflogd 85022 252032 1 0 3 0x80 netio pflogd 11648 153061 76594 73 3 0x100090 kqread syslogd 76594 493186 1 0 3 0x100082 netio syslogd 737 116854 1 77 2 0x100010 dhclient * 4086 316864 1 0 7 0 dhclient 63454 127478 0 0 3 0x14200 bored smr 48553 465158 0 0 2 0x14200 zerothread 14704 250513 0 0 3 0x14200 aiodoned aiodoned 35996 328159 0 0 3 0x14200 syncer update 95871 448363 0 0 3 0x14200 cleaner cleaner 53486 425424 0 0 3 0x14200 reaper reaper 2282 152012 0 0 3 0x14200 pgdaemon pagedaemon 9627 196859 0 0 3 0x14200 bored crynlk 94034 85209 0 0 3 0x14200 bored crypto 9011 304627 0 0 3 0x40014200 acpi0 acpi0 44692 397928 0 0 7 0x40014200 idle1 78548 1438 0 0 2 0x14200 softnet 66373 521833 0 0 2 0x14200 systqmp 25850 463047 0 0 3 0x14200 bored systq 31463 50164 0 0 3 0x40014200 bored softclock 14858 235382 0 0 3 0x40014200 idle0 1 277518 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 4086 (dhclient) thread 0xffff800020ddcea8 (316864) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828c2b40) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x66 sys/kern/uipc_socket2.c:292 #2 soreceive+0x114 sys/kern/uipc_socket.c:737 #3 soo_read+0x53 sys/kern/sys_socket.c:70 #4 dofilereadv+0x1a1 sys/kern/sys_generic.c:237 #5 sys_read+0x83 sys/kern/sys_generic.c:157 #6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9509 6413K 6789K 78643K 10940 0 pcb 13 8K 8K 78643K 47 0 rtable 91 5K 8K 78643K 343 0 ifaddr 61 12K 14K 78643K 113 0 counters 41 33K 34K 78643K 51 0 ioctlops 0 0K 4K 78643K 1499 0 iov 0 0K 16K 78643K 30 0 mount 1 1K 1K 78643K 1 0 vnodes 1227 77K 77K 78643K 1330 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 48 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 234 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 83K 78643K 499 0 subproc 23 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 453 0 in_multi 43 2K 2K 78643K 123 0 ether_multi 1 0K 0K 78643K 5 0 mrt 0 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 230 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 109 38K 54K 78643K 1477 0 UVM aobj 6 2K 2K 78643K 6 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 32 0 NDP 10 0K 0K 78643K 27 0 temp 87 3859K 3923K 78643K 3511 0 kqueue 3 4K 9K 78643K 13 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 6 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 35 0 33 1 0 1 1 0 8 0 rtentry 112 68 0 38 2 0 2 2 0 8 0 unpcb 120 153 0 143 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 48 0 48 1 1 0 1 0 8 0 tcpcb 544 330 0 326 1 0 1 1 0 8 0 inpcb 296 508 0 501 2 0 2 2 0 8 1 rttmr 72 3 0 3 1 1 0 1 0 8 0 nd6 48 14 0 13 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 ppxss 1128 2 0 2 1 0 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 pfrktable 1344 20 0 16 1 0 1 1 0 8 0 pfstitem 24 12 0 3 1 0 1 1 0 8 0 pfstkey 112 12 0 3 1 0 1 1 0 8 0 pfstate 328 12 0 3 1 0 1 1 0 8 0 pfrule 1360 29 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 284 0 128 13 0 13 13 0 8 0 art_table 32 285 0 128 2 0 2 2 0 8 0 art_node 16 67 0 31 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 42 0 32 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1704 0 300 89 0 89 89 0 8 0 ffsino 272 1704 0 300 95 0 95 95 0 8 0 nchpl 144 2279 0 691 60 0 60 60 0 8 0 uvmvnodes 72 1829 0 0 34 0 34 34 0 8 0 vnodes 208 1829 0 0 97 0 97 97 0 8 0 namei 1024 6268 0 6268 1 0 1 1 0 8 1 percpumem 16 36 0 5 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 2 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 8 0 4 1 0 1 1 0 8 0 scxspl 192 6635 0 6635 8 5 3 7 0 8 3 plimitpl 152 32 0 24 1 0 1 1 0 8 0 sigapl 424 472 0 420 7 0 7 7 0 8 1 futexpl 56 4682 0 4682 1 0 1 1 0 8 1 knotepl 112 71 0 58 1 0 1 1 0 8 0 kqueuepl 144 28 0 26 1 0 1 1 0 8 0 pipelkpl 48 101 0 94 1 0 1 1 0 8 0 pipepl 120 202 0 189 1 0 1 1 0 8 0 fdescpl 496 435 0 420 3 0 3 3 0 8 0 filepl 152 2685 0 2600 6 0 6 6 0 8 1 lockfpl 104 47 0 46 1 0 1 1 0 8 0 lockfspl 48 17 0 16 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 31 0 20 1 0 1 1 0 8 0 ucredpl 96 224 0 215 1 0 1 1 0 8 0 zombiepl 144 421 0 420 1 0 1 1 0 8 0 processpl 984 472 0 420 7 0 7 7 0 8 0 procpl 624 722 0 661 6 0 6 6 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 400 703 0 684 5 0 5 5 0 8 3 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 167 0 0 20 0 20 20 0 8 0 mtagpl 96 18 0 0 1 0 1 1 0 8 0 mbufpl 256 219 0 0 13 0 13 13 0 8 0 bufpl 280 3796 0 133 262 0 262 262 0 8 0 anonpl 16 58864 0 43322 88 3 85 87 0 124 11 amapchunkpl 152 2496 0 2346 20 0 20 20 0 158 13 amappl16 192 2051 0 1070 56 2 54 56 0 8 4 amappl15 184 93 0 92 2 1 1 1 0 8 0 amappl14 176 133 0 127 1 0 1 1 0 8 0 amappl13 168 30 0 26 1 0 1 1 0 8 0 amappl12 160 117 0 116 2 1 1 1 0 8 0 amappl11 152 155 0 139 1 0 1 1 0 8 0 amappl10 144 24 0 16 1 0 1 1 0 8 0 amappl9 136 386 0 385 1 0 1 1 0 8 0 amappl8 128 344 0 314 2 0 2 2 0 8 0 amappl7 120 121 0 109 1 0 1 1 0 8 0 amappl6 112 25 0 22 1 0 1 1 0 8 0 amappl5 104 232 0 215 1 0 1 1 0 8 0 amappl4 96 603 0 574 1 0 1 1 0 8 0 amappl3 88 229 0 222 1 0 1 1 0 8 0 amappl2 80 2615 0 2547 2 0 2 2 0 8 0 amappl1 72 18445 0 18012 24 14 10 18 0 8 0 amappl 80 958 0 914 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 437 0 420 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 437 0 420 1 0 1 1 0 8 0 vmmpekpl 168 6728 0 6684 3 0 3 3 0 8 0 vmmpepl 168 58428 0 56371 117 16 101 109 0 357 8 vmsppl 368 436 0 420 2 0 2 2 0 8 0 pdppl 4096 881 0 842 6 0 6 6 0 8 0 pvpl 32 184586 0 165878 209 2 207 209 0 265 33 pmappl 232 436 0 420 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 263 0 3 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f68b320,0,ffff800020e1d358,0,0,ffff800020e1d264) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68b320,0,ffff800020e1d358,0,0,ffff800020e1d264) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8076ff7000,ffff800020e1d358,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1d358,0,ffff800020e1d440) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1d3f0,ffff800020e1d440) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d4c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d4c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc7d30, 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 acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187 sched_idle(ffff800020d70ff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5