uvm_fault(0xffffffff8280d460, 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(0xffffffff8280d460, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f681000,0,ffff800020e1d858,0,0,ffff800020e1d764) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f681000,0,ffff800020e1d858,0,0,ffff800020e1d764) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d7a0, count: 0 ddb{0}> trace soreceive(fffffd806f681000,0,ffff800020e1d858,0,0,ffff800020e1d764) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f681000,0,ffff800020e1d858,0,0,ffff800020e1d764) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8075df62f8,ffff800020e1d858,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcc38,6,ffff800020e1d858,0,ffff800020e1d940) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcc38,ffff800020e1d8f0,ffff800020e1d940) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d9c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d9c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff1060, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d740 rbx 0xfffffd807afa0500 rdx 0x5ccaa acpi_pdirpa+0x48b12 rcx 0 rax 0 r8 0xffffffff81182291 soreceive+0x5c1 r9 0x3 r10 0x2c4b1b7e6b2f761 r11 0x4159fcbf11e2d5b4 r12 0x91e r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f681000 rip 0xffffffff81182dd0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d650 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=11507 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc9c8,0xffff800020ddd398 process=0xffff800020df03e8 user=0xffff800020e18000, 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 54623 427936 61166 0 2 0 syz-executor.1 54623 340506 61166 0 2 0x4000080 syz-executor.1 54623 306508 61166 0 3 0x4000080 lockf syz-executor.1 54623 448891 61166 0 2 0x4000000 syz-executor.1 61166 332520 43659 0 7 0x482 syz-executor.1 86093 310524 0 0 3 0x14200 acct acct 39949 354516 0 0 3 0x14200 bored sosplice 61183 321332 0 0 3 0x14280 nfsidl nfsio 49892 13702 0 0 3 0x14280 nfsidl nfsio 9852 488493 0 0 3 0x14280 nfsidl nfsio 23442 381357 0 0 3 0x14280 nfsidl nfsio 84948 422993 0 0 3 0x14280 nfsidl nfsio 18421 519245 0 0 3 0x14280 nfsidl nfsio 27344 264581 0 0 3 0x14280 nfsidl nfsio 36730 295980 0 0 3 0x14280 nfsidl nfsio 43335 212947 0 0 3 0x14280 nfsidl nfsio 25456 174392 0 0 3 0x14280 nfsidl nfsio 35192 139564 0 0 3 0x14280 nfsidl nfsio 50721 475409 0 0 3 0x14280 nfsidl nfsio 95143 182461 0 0 3 0x14280 nfsidl nfsio 19368 383942 0 0 3 0x14280 nfsidl nfsio 39138 42502 0 0 3 0x14280 nfsidl nfsio 65323 192308 0 0 3 0x14280 nfsidl nfsio 39393 52741 0 0 3 0x14280 nfsidl nfsio 61292 516979 0 0 3 0x14280 nfsidl nfsio 43280 129126 0 0 3 0x14280 nfsidl nfsio 32528 325494 0 0 3 0x14280 nfsidl nfsio 43659 401120 49477 0 3 0x82 thrsleep syz-fuzzer 43659 325538 49477 0 3 0x4000082 thrsleep syz-fuzzer 43659 509283 49477 0 3 0x4000082 thrsleep syz-fuzzer 43659 273492 49477 0 3 0x4000082 kqread syz-fuzzer 43659 405738 49477 0 3 0x4000082 thrsleep syz-fuzzer 43659 269442 49477 0 3 0x4000082 thrsleep syz-fuzzer 43659 91150 49477 0 3 0x4000082 thrsleep syz-fuzzer 43659 185692 49477 0 3 0x4000082 thrsleep syz-fuzzer 43659 521777 49477 0 3 0x4000082 thrsleep syz-fuzzer 43659 492086 49477 0 3 0x4000082 thrsleep syz-fuzzer 49477 442314 79725 0 3 0x10008a pause ksh 79725 144832 94182 0 3 0x92 select sshd 87921 27884 1 0 3 0x100083 ttyin getty 94182 156847 1 0 3 0x80 select sshd 41074 38027 13408 74 3 0x100092 bpf pflogd 13408 17276 1 0 3 0x80 netio pflogd 97089 74908 87167 73 3 0x100090 kqread syslogd 87167 444561 1 0 3 0x100082 netio syslogd 41159 335629 1 77 3 0x100090 poll dhclient *70483 11507 1 0 7 0 dhclient 18647 478803 0 0 3 0x14200 bored smr 99725 493118 0 0 2 0x14200 zerothread 51828 285519 0 0 3 0x14200 aiodoned aiodoned 73928 470710 0 0 3 0x14200 syncer update 53723 328782 0 0 3 0x14200 cleaner cleaner 54962 43344 0 0 3 0x14200 reaper reaper 490 164296 0 0 3 0x14200 pgdaemon pagedaemon 69278 470833 0 0 3 0x14200 bored crynlk 96996 53500 0 0 3 0x14200 bored crypto 99885 445331 0 0 3 0x40014200 acpi0 acpi0 42223 49910 0 0 3 0x40014200 idle1 98245 158504 0 0 3 0x14200 tqbarend softnet 50770 464398 0 0 3 0x14200 bored systqmp 28319 312529 0 0 3 0x14200 bored systq 35273 461997 0 0 3 0x40014200 bored softclock 33479 226704 0 0 3 0x40014200 idle0 1 164585 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 70483 (dhclient) thread 0xffff800020ddcc38 (11507) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828e2dd8) #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 Process 98245 (softnet) thread 0xffff800020d884e0 (158504) 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 9533 6422K 6941K 78643K 11530 0 pcb 13 8K 9K 78643K 489 0 rtable 91 5K 10K 78643K 440 0 ifaddr 73 13K 18K 78643K 157 0 counters 41 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1544 0 iov 0 0K 28K 78643K 63 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1484 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 84 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 450 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 83K 78643K 553 0 subproc 23 1K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 32 0 in_multi 40 2K 3K 78643K 168 0 ether_multi 1 0K 0K 78643K 10 0 mrt 0 0K 0K 78643K 8 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 245 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 142 88K 88K 78643K 2428 0 UVM aobj 17 4K 4K 78643K 19 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 83 0 NDP 13 0K 0K 78643K 36 0 temp 120 3868K 3934K 78643K 7519 0 kqueue 3 4K 9K 78643K 29 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 9 0 5 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 29 0 27 1 0 1 1 0 8 0 rtentry 112 92 0 62 2 0 2 2 0 8 0 unpcb 120 197 0 187 1 0 1 1 0 8 0 syncache 264 6 0 6 3 2 1 1 0 8 1 tcpqe 32 594 0 594 2 1 1 1 0 8 1 tcpcb 544 170 0 166 2 1 1 2 0 8 0 inpcb 296 893 0 885 3 1 2 2 0 8 1 rttmr 72 4 0 4 1 1 0 1 0 8 0 nd6 48 30 0 29 1 0 1 1 0 8 0 pkpcb 40 10 0 10 2 2 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 3 0 2 1 0 1 1 0 482 0 pffrnode 88 3 0 2 1 0 1 1 0 8 0 pffrent 40 48 0 47 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 pfrktable 1344 40 0 35 2 0 2 2 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 12 0 6 1 0 1 1 0 8 0 pfstkey 112 12 0 6 1 0 1 1 0 8 0 pfstate 328 12 0 6 1 0 1 1 0 8 0 pfsrctr 152 2 0 2 1 1 0 1 0 8 0 pfrule 1360 35 0 23 4 2 2 2 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 284 0 156 13 1 12 13 0 8 2 art_table 32 285 0 156 2 0 2 2 0 8 0 art_node 16 91 0 63 1 0 1 1 0 8 0 sysvmsgpl 40 28 0 21 1 0 1 1 0 8 0 semapl 112 80 0 70 1 0 1 1 0 8 0 shmpl 112 17 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1995 0 587 89 0 89 89 0 8 0 ffsino 272 1995 0 587 95 0 95 95 0 8 0 nchpl 144 2816 0 1231 60 0 60 60 0 8 0 uvmvnodes 72 2239 0 0 41 0 41 41 0 8 0 vnodes 208 2239 0 0 118 0 118 118 0 8 0 namei 1024 8213 0 8213 2 1 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 8 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 12 0 8 1 0 1 1 0 8 0 scxspl 192 8541 0 8541 10 7 3 7 0 8 3 plimitpl 152 47 0 39 1 0 1 1 0 8 0 sigapl 424 684 0 631 8 1 7 7 0 8 1 futexpl 56 6990 0 6990 2 1 1 1 0 8 1 knotepl 112 111 0 94 1 0 1 1 0 8 0 kqueuepl 144 62 0 59 1 0 1 1 0 8 0 pipepl 304 133 0 124 1 0 1 1 0 8 0 fdescpl 496 647 0 631 3 0 3 3 0 8 0 filepl 152 4104 0 4013 5 0 5 5 0 8 1 lockfpl 104 106 0 103 1 0 1 1 0 8 0 lockfspl 48 38 0 36 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 23 0 12 1 0 1 1 0 8 0 ucredpl 96 433 0 423 1 0 1 1 0 8 0 zombiepl 144 632 0 631 1 0 1 1 0 8 0 processpl 984 684 0 631 7 0 7 7 0 8 0 procpl 624 1613 0 1548 6 0 6 6 0 8 0 sosppl 128 8 0 8 2 1 1 1 0 8 1 sockpl 400 1133 0 1114 6 2 4 4 0 8 2 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 161 0 0 20 0 20 20 0 8 0 mtagpl 96 64 0 0 2 0 2 2 0 8 0 mbufpl 256 376 0 0 22 0 22 22 0 8 0 bufpl 280 4238 0 132 294 0 294 294 0 8 0 anonpl 16 74293 0 58028 73 5 68 71 0 124 0 amapchunkpl 152 4067 0 3908 21 14 7 21 0 158 0 amappl16 192 2648 0 1748 48 1 47 47 0 8 1 amappl15 184 91 0 89 1 0 1 1 0 8 0 amappl14 176 25 0 21 1 0 1 1 0 8 0 amappl13 168 238 0 234 1 0 1 1 0 8 0 amappl12 160 213 0 211 2 1 1 1 0 8 0 amappl11 152 61 0 46 1 0 1 1 0 8 0 amappl10 144 18 0 13 1 0 1 1 0 8 0 amappl9 136 509 0 505 1 0 1 1 0 8 0 amappl8 128 508 0 468 2 0 2 2 0 8 0 amappl7 120 124 0 111 1 0 1 1 0 8 0 amappl6 112 23 0 20 1 0 1 1 0 8 0 amappl5 104 540 0 523 1 0 1 1 0 8 0 amappl4 96 514 0 484 1 0 1 1 0 8 0 amappl3 88 115 0 109 1 0 1 1 0 8 0 amappl2 80 4457 0 4384 2 0 2 2 0 8 0 amappl1 72 23815 0 23369 23 13 10 18 0 8 0 amappl 80 1863 0 1814 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 18 0 2 1 0 1 1 0 8 0 uaddrrnd 24 655 0 632 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 655 0 632 1 0 1 1 0 8 0 vmmpekpl 168 8921 0 8884 2 0 2 2 0 8 0 vmmpepl 168 85622 0 83555 140 29 111 131 0 357 15 vmsppl 368 654 0 632 3 0 3 3 0 8 1 pdppl 4096 1317 0 1271 8 1 7 7 0 8 1 pvpl 32 239319 0 219793 178 13 165 174 0 265 3 pmappl 232 654 0 632 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 281 0 10 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f681000,0,ffff800020e1d858,0,0,ffff800020e1d764) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f681000,0,ffff800020e1d858,0,0,ffff800020e1d764) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8075df62f8,ffff800020e1d858,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcc38,6,ffff800020e1d858,0,ffff800020e1d940) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcc38,ffff800020e1d8f0,ffff800020e1d940) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d9c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d9c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff1060, 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(ffffffff828e2bd0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828e2bd0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff828e2bd0,1) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff8000230eb800,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff8000230eb800,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff8000230eb800,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff8280d2f0,120,ffffffff823f4c33,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020e04298,ffff8000230eb930,ffff8000230eb980) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff8000230eba00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230eba00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe25c0, count: -12