uvm_fault(0xffffffff827bc940, 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(0xffffffff827bc940, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68e000,0,ffff800020e1e718,0,0,ffff800020e1e624) at soreceive+0xdcd sys/kern/uipc_socket.c:985 end trace frame: 0xffff800020e1e660, count: 0 ddb{0}> trace soreceive(fffffd806f68e000,0,ffff800020e1e718,0,0,ffff800020e1e624) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd80793f7130,ffff800020e1e718,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddd118,6,ffff800020e1e718,0,ffff800020e1e800) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddd118,ffff800020e1e7b0,ffff800020e1e800) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e880) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e880) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffddcb0, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1e600 rbx 0xfffffd806f15ae00 rdx 0x747e2 acpi_pdirpa+0x6064a rcx 0 rax 0xfffffd806f68e000 r8 0xffffffff81648926 soreceive+0xbe6 r9 0x3 r10 0xb94a64f47f078c86 r11 0x7dcd63e32bd8c0b3 r12 0xfffffd0000000000 r13 0 r14 0x1 r15 0 rip 0xffffffff81648b0d soreceive+0xdcd cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800020e1e510 ss 0x10 soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{0}> show proc PROC (dhclient) pid=236008 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc278,0xffff800020ddd398 process=0xffff800020df0010 user=0xffff800020e19000, vmspace=0xfffffd807efff170 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 80216 70534 12633 0 2 0 syz-executor.0 80216 504407 12633 0 3 0x4000080 fsleep syz-executor.0 45809 379104 0 0 3 0x14280 nfsidl nfsio 36351 24580 0 0 3 0x14280 nfsidl nfsio 7725 361871 0 0 3 0x14280 nfsidl nfsio 72082 157385 0 0 3 0x14280 nfsidl nfsio 8819 259542 0 0 3 0x14280 nfsidl nfsio 80666 101356 0 0 3 0x14280 nfsidl nfsio 35088 168465 0 0 3 0x14280 nfsidl nfsio 5572 260063 0 0 3 0x14280 nfsidl nfsio 4113 188035 0 0 3 0x14280 nfsidl nfsio 53879 213694 0 0 3 0x14280 nfsidl nfsio 57965 155144 0 0 3 0x14280 nfsidl nfsio 57899 11220 0 0 3 0x14280 nfsidl nfsio 31994 142095 0 0 3 0x14280 nfsidl nfsio 16915 445369 0 0 3 0x14280 nfsidl nfsio 99208 404839 0 0 3 0x14280 nfsidl nfsio 39753 121381 0 0 3 0x14280 nfsidl nfsio 5982 139572 0 0 3 0x14280 nfsidl nfsio 68338 214122 0 0 3 0x14280 nfsidl nfsio 98315 266969 0 0 3 0x14280 nfsidl nfsio 89016 379866 0 0 3 0x14280 nfsidl nfsio 7879 213108 0 0 3 0x14200 acct acct 17260 164858 0 0 3 0x14200 bored sosplice 12633 88240 78625 0 2 0x2 syz-executor.0 78625 45287 98283 0 3 0x82 thrsleep syz-fuzzer 78625 377338 98283 0 3 0x4000082 thrsleep syz-fuzzer 78625 432946 98283 0 3 0x4000082 thrsleep syz-fuzzer 78625 189573 98283 0 3 0x4000082 thrsleep syz-fuzzer 78625 387910 98283 0 2 0x4000082 syz-fuzzer 78625 180831 98283 0 3 0x4000082 thrsleep syz-fuzzer 78625 473866 98283 0 3 0x4000082 thrsleep syz-fuzzer 78625 135004 98283 0 3 0x4000082 thrsleep syz-fuzzer 78625 198414 98283 0 3 0x4000082 thrsleep syz-fuzzer 78625 157187 98283 0 3 0x4000082 thrsleep syz-fuzzer 98283 175830 80785 0 3 0x10008a pause ksh 80785 414518 57665 0 3 0x92 select sshd 41358 257253 1 0 3 0x100083 ttyin getty 57665 65675 1 0 3 0x80 select sshd 65231 260878 38294 74 2 0x100492 pflogd 38294 33841 1 0 3 0x80 netio pflogd 10376 347176 46061 73 3 0x100090 kqread syslogd 46061 84937 1 0 3 0x100082 netio syslogd 84379 30530 1 77 2 0x100010 dhclient *65967 236008 1 0 7 0 dhclient 50938 176462 0 0 3 0x14200 bored smr 82069 442534 0 0 2 0x14200 zerothread 78474 493022 0 0 3 0x14200 aiodoned aiodoned 92869 252306 0 0 3 0x14200 syncer update 80849 404822 0 0 3 0x14200 cleaner cleaner 99522 2374 0 0 7 0x14200 reaper 86445 159127 0 0 3 0x14200 pgdaemon pagedaemon 14151 405821 0 0 3 0x14200 bored crynlk 56436 120629 0 0 3 0x14200 bored crypto 60654 215262 0 0 3 0x40014200 acpi0 acpi0 66307 316620 0 0 3 0x40014200 idle1 44151 481411 0 0 2 0x14200 softnet 26228 114076 0 0 2 0x14200 systqmp 72237 251591 0 0 3 0x14200 bored systq 9956 430224 0 0 3 0x40014200 bored softclock 58215 308561 0 0 3 0x40014200 idle0 1 22364 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 65967 (dhclient) thread 0xffff800020ddd118 (236008) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82919f20) #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+0xb3a sys/kern/uipc_socket.c:956 #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 Process 44151 (softnet) thread 0xffff800020d88000 (481411) shared rwlock softnet r = 0 (0xffff80000002c070) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 taskq_thread+0xdf sys/kern/kern_task.c:436 #2 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9525 6435K 6744K 78643K 11327 0 pcb 13 8K 8K 78643K 84 0 rtable 97 7K 10K 78643K 699 0 ifaddr 74 14K 18K 78643K 208 0 sysctl 2 0K 0K 78643K 2 0 counters 41 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 1540 0 iov 0 0K 16K 78643K 72 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1458 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 11 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 131 0 dirhash 9 1K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 844 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 95K 78643K 486 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 22 0 in_multi 52 2K 3K 78643K 238 0 ether_multi 1 0K 0K 78643K 7 0 mrt 0 0K 0K 78643K 10 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 244 0 pfkey data 0 0K 0K 78643K 8 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 129 71K 71K 78643K 3511 0 UVM aobj 30 4K 4K 78643K 35 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 13 0K 0K 78643K 62 0 temp 138 3868K 3935K 78643K 15649 0 kqueue 3 4K 22K 78643K 36 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 8 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 56 0 54 1 0 1 1 0 8 0 rtentry 112 161 0 132 2 0 2 2 0 8 0 unpcb 120 535 0 525 1 0 1 1 0 8 0 syncache 264 7 0 7 3 3 0 1 0 8 0 tcpqe 32 219 0 219 2 2 0 1 0 8 0 tcpcb 544 158 0 152 1 0 1 1 0 8 0 inpcb 296 708 0 697 3 1 2 2 0 8 0 rttmr 72 5 0 5 2 2 0 1 0 8 0 nd6 48 45 0 44 1 0 1 1 0 8 0 pkpcb 40 14 0 14 4 3 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 5 0 3 1 0 1 1 0 482 0 pffrnode 88 5 0 3 1 0 1 1 0 8 0 pffrent 40 53 0 51 1 0 1 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 pfrke_plain 160 23 0 21 1 0 1 1 0 8 0 pfrktable 1344 72 0 64 2 1 1 2 0 8 0 pftag 88 4 0 4 1 1 0 1 0 8 0 pfstitem 24 43 0 14 1 0 1 1 0 8 0 pfstkey 112 47 0 18 2 0 2 2 0 8 0 pfstate 328 45 0 16 4 0 4 4 0 8 0 pfrule 1360 34 0 26 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 706 0 573 13 0 13 13 0 8 3 art_table 32 707 0 573 2 0 2 2 0 8 0 art_node 16 159 0 133 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 8 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 114 0 104 1 0 1 1 0 8 0 shmpl 112 32 0 5 1 0 1 1 0 8 0 dirhash 1024 17 0 10 3 1 2 3 0 8 0 dino2pl 256 2432 0 1029 89 0 89 89 0 8 0 ffsino 272 2432 0 1029 95 1 94 95 0 8 0 nchpl 144 4402 0 2803 60 0 60 60 0 8 0 rtmask 32 42 0 41 1 0 1 1 0 8 0 uvmvnodes 72 2630 0 0 48 0 48 48 0 8 0 vnodes 208 2630 0 0 139 0 139 139 0 8 0 namei 1024 11917 0 11917 1 0 1 1 0 8 1 percpumem 16 43 0 12 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 2 2 1 1 1 0 8 0 pfiaddrpl 120 12 0 5 1 0 1 1 0 8 0 scxspl 192 11206 0 11206 10 9 1 7 0 8 1 plimitpl 152 41 0 33 1 0 1 1 0 8 0 sigapl 424 1081 0 1029 7 0 7 7 0 8 1 futexpl 56 10563 0 10562 1 0 1 1 0 8 0 knotepl 112 150 0 133 2 1 1 2 0 8 0 kqueuepl 144 170 0 165 1 0 1 1 0 8 0 pipepl 304 167 0 158 3 2 1 2 0 8 0 fdescpl 496 1044 0 1029 3 0 3 3 0 8 0 filepl 152 6587 0 6505 5 0 5 5 0 8 1 lockfpl 104 134 0 133 1 0 1 1 0 8 0 lockfspl 48 47 0 46 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 72 0 61 1 0 1 1 0 8 0 ucredpl 96 943 0 934 1 0 1 1 0 8 0 zombiepl 144 1029 0 1028 1 0 1 1 0 8 0 processpl 992 1081 0 1028 7 0 7 7 0 8 0 procpl 624 2728 0 2665 6 0 6 6 0 8 1 sosppl 128 4 0 4 2 2 0 1 0 8 0 sockpl 400 1314 0 1291 5 2 3 4 0 8 0 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 13 0 0 2 0 2 2 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 182 0 0 22 0 22 22 0 8 0 mtagpl 96 26 0 0 1 0 1 1 0 8 0 mbufpl 256 295 0 0 15 0 15 15 0 8 0 bufpl 280 5632 0 135 393 0 393 393 0 8 0 anonpl 16 101814 0 85420 73 5 68 72 0 124 0 amapchunkpl 152 6124 0 5981 21 14 7 20 0 158 0 amappl16 192 4698 0 3772 50 3 47 49 0 8 0 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 22 0 19 1 0 1 1 0 8 0 amappl13 168 427 0 423 1 0 1 1 0 8 0 amappl12 160 409 0 407 2 1 1 1 0 8 0 amappl11 152 55 0 38 1 0 1 1 0 8 0 amappl10 144 19 0 14 1 0 1 1 0 8 0 amappl9 136 389 0 388 1 0 1 1 0 8 0 amappl8 128 367 0 330 2 0 2 2 0 8 0 amappl7 120 124 0 111 1 0 1 1 0 8 0 amappl6 112 30 0 24 2 1 1 1 0 8 0 amappl5 104 946 0 928 1 0 1 1 0 8 0 amappl4 96 487 0 461 1 0 1 1 0 8 0 amappl3 88 132 0 126 1 0 1 1 0 8 0 amappl2 80 7819 0 7749 2 0 2 2 0 8 0 amappl1 72 39122 0 38674 23 13 10 18 0 8 0 amappl 80 2973 0 2927 3 1 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 34 0 5 1 0 1 1 0 8 0 uaddrrnd 24 1052 0 1031 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1052 0 1031 1 0 1 1 0 8 0 vmmpekpl 168 11244 0 11199 3 0 3 3 0 8 0 vmmpepl 168 138317 0 136220 118 19 99 110 0 357 4 vmsppl 368 1051 0 1030 3 0 3 3 0 8 1 pdppl 4096 2111 0 2066 6 0 6 6 0 8 0 pvpl 32 340036 0 320537 176 12 164 176 0 265 0 pmappl 232 1051 0 1030 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 270 0 7 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f68e000,0,ffff800020e1e718,0,0,ffff800020e1e624) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd80793f7130,ffff800020e1e718,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddd118,6,ffff800020e1e718,0,ffff800020e1e800) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddd118,ffff800020e1e7b0,ffff800020e1e800) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e880) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e880) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffddcb0, 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 __mp_lock(ffffffff82919d18) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82919d18) at __mp_lock+0x12e sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcf2c0,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efff5c0) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efff5c0) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020df1750) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89ad0) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -9