uvm_fault(0xffffffff827c3dc8, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff827c3dc8, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f684640,0,ffff800020e1ece8,0,0,ffff800020e1ebf4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 end trace frame: 0xffff800020e1ec30, count: 0 ddb{1}> trace soreceive(fffffd806f684640,0,ffff800020e1ece8,0,0,ffff800020e1ebf4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd806fc37390,ffff800020e1ece8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc9c8,6,ffff800020e1ece8,0,ffff800020e1edd0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc9c8,ffff800020e1ed80,ffff800020e1edd0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ee50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ee50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdb5d0, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1ebd0 rbx 0xfffffd8064744e00 rdx 0x473b6 acpi_pdirpa+0x3321e rcx 0 rax 0xfffffd806f684640 r8 0xffffffff816aa636 soreceive+0xbe6 r9 0x3 r10 0x109ecb6f52001b8a r11 0x3f49696d955159aa r12 0xfffffd0000000000 r13 0 r14 0x1 r15 0 rip 0xffffffff816aa81d soreceive+0xdcd cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800020e1eae0 ss 0x10 soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{1}> show proc PROC (dhclient) pid=209273 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcc38,0xffff800020ddd608 process=0xffff800020df07d0 user=0xffff800020e19000, vmspace=0xfffffd807efff730 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 31903 417811 75773 0 7 0 syz-executor.0 31903 212876 75773 0 2 0x4000000 syz-executor.0 97764 169565 15658 0 2 0 syz-executor.1 97764 499991 15658 0 3 0x4000080 fsleep syz-executor.1 97764 460721 15658 0 3 0x4000080 fsleep syz-executor.1 97764 157593 15658 0 3 0x4000080 fsleep syz-executor.1 75773 211710 71956 0 3 0x82 nanosleep syz-executor.0 31656 126310 0 0 3 0x14200 bored sosplice 15658 380436 71956 0 3 0x82 nanosleep syz-executor.1 71956 262313 30316 0 3 0x82 thrsleep syz-fuzzer 71956 102163 30316 0 3 0x4000082 thrsleep syz-fuzzer 71956 351544 30316 0 3 0x4000082 kqread syz-fuzzer 71956 422082 30316 0 3 0x4000082 thrsleep syz-fuzzer 71956 269853 30316 0 3 0x4000082 thrsleep syz-fuzzer 71956 421766 30316 0 3 0x4000082 thrsleep syz-fuzzer 71956 509184 30316 0 3 0x4000082 thrsleep syz-fuzzer 71956 208606 30316 0 3 0x4000082 thrsleep syz-fuzzer 71956 318659 30316 0 3 0x4000082 thrsleep syz-fuzzer 71956 421835 30316 0 3 0x4000082 thrsleep syz-fuzzer 30316 421708 50816 0 3 0x10008a pause ksh 50816 20476 15202 0 3 0x92 select sshd 91866 120933 1 0 3 0x100083 ttyin getty 15202 428152 1 0 3 0x80 select sshd 4999 329974 99823 74 3 0x100092 bpf pflogd 99823 340296 1 0 3 0x80 netio pflogd 24101 131766 87684 73 3 0x100090 kqread syslogd 87684 362129 1 0 3 0x100082 netio syslogd 92589 427928 1 77 3 0x100090 poll dhclient *18597 209273 1 0 7 0 dhclient 6702 41644 0 0 3 0x14200 bored smr 54147 160203 0 0 2 0x14200 zerothread 66789 278510 0 0 3 0x14200 aiodoned aiodoned 85572 86996 0 0 3 0x14200 syncer update 9977 19107 0 0 3 0x14200 cleaner cleaner 20874 72339 0 0 3 0x14200 reaper reaper 66350 444663 0 0 3 0x14200 pgdaemon pagedaemon 69728 157676 0 0 3 0x14200 bored crynlk 87704 512863 0 0 3 0x14200 bored crypto 15191 181778 0 0 3 0x40014200 acpi0 acpi0 24407 230196 0 0 3 0x40014200 idle1 63750 189914 0 0 3 0x14200 bored softnet 40831 460843 0 0 3 0x14200 bored systqmp 17872 454070 0 0 3 0x14200 bored systq 47912 41423 0 0 3 0x40014200 bored softclock 86068 94512 0 0 3 0x40014200 idle0 1 421042 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 18597 (dhclient) thread 0xffff800020ddc9c8 (209273) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8291af60) #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9531 6418K 7189K 78643K 13037 0 pcb 13 8K 8K 78643K 97 0 rtable 70 4K 6K 78643K 457 0 ifaddr 87 16K 17K 78643K 168 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1558 0 iov 0 0K 32K 78643K 61 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1848 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 14 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 157 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 872 0 sigio 0 0K 0K 78643K 50 0 proc 61 63K 83K 78643K 511 0 subproc 32 2K 2K 78643K 54 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 39 0 in_multi 52 2K 2K 78643K 135 0 ether_multi 1 0K 0K 78643K 13 0 mrt 0 0K 0K 78643K 1 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 133 71K 72K 78643K 3628 0 UVM aobj 34 6K 6K 78643K 48 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 71 0 NDP 14 0K 0K 78643K 35 0 temp 140 3870K 3937K 78643K 12006 0 kqueue 3 4K 8K 78643K 14 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 9 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 41 0 39 1 0 1 1 0 8 0 rtentry 112 88 0 67 2 0 2 2 0 8 0 unpcb 120 448 0 438 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 96 0 96 1 1 0 1 0 8 0 tcpcb 544 609 0 604 2 1 1 2 0 8 0 inpcb 296 1379 0 1369 5 3 2 2 0 8 1 ip6q 72 2 0 2 1 0 1 1 0 8 1 ip6af 40 6 0 6 1 0 1 1 0 8 1 nd6 48 16 0 15 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 1 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 22 0 20 2 1 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 24 0 13 1 0 1 1 0 8 0 pfstkey 112 26 0 15 1 0 1 1 0 8 0 pfstate 328 24 0 13 2 0 2 2 0 8 0 pfrule 1360 37 0 21 3 1 2 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 550 0 410 19 6 13 16 0 8 2 art_table 32 553 0 410 2 0 2 2 0 8 0 art_node 16 87 0 71 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 12 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 155 0 145 1 0 1 1 0 8 0 shmpl 112 45 0 14 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2663 0 1258 90 1 89 89 0 8 0 ffsino 272 2663 0 1258 95 0 95 95 0 8 0 nchpl 144 4397 0 2800 60 0 60 60 0 8 0 uvmvnodes 72 3263 0 0 60 0 60 60 0 8 0 vnodes 208 3263 0 0 172 0 172 172 0 8 0 namei 1024 11637 0 11637 1 0 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 vcpupl 1984 5 0 0 1 0 1 1 0 8 0 vmpool 560 5 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 6 0 6 2 1 1 1 0 8 1 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 12024 0 12024 10 7 3 7 0 8 3 plimitpl 152 36 0 28 1 0 1 1 0 8 0 sigapl 424 1085 0 1052 4 0 4 4 0 8 0 futexpl 56 13104 0 13101 1 0 1 1 0 8 0 knotepl 112 85 0 66 1 0 1 1 0 8 0 kqueuepl 144 76 0 72 1 0 1 1 0 8 0 pipepl 304 171 0 160 4 3 1 2 0 8 0 fdescpl 496 1069 0 1052 3 0 3 3 0 8 0 filepl 152 6455 0 6348 5 0 5 5 0 8 0 lockfpl 104 107 0 106 1 0 1 1 0 8 0 lockfspl 48 43 0 42 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 27 0 16 1 0 1 1 0 8 0 ucredpl 96 527 0 518 1 0 1 1 0 8 0 zombiepl 144 1052 0 1052 1 0 1 1 0 8 1 processpl 992 1085 0 1052 5 0 5 5 0 8 0 procpl 624 2798 0 2752 4 0 4 4 0 8 0 srpgc 64 4 0 4 1 1 0 1 0 8 0 sosppl 128 13 0 13 3 3 0 1 0 8 0 sockpl 400 1873 0 1851 7 3 4 5 0 8 1 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 13 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 191 0 0 23 0 23 23 0 8 0 mtagpl 96 212 0 0 6 0 6 6 0 8 0 mbufpl 256 573 0 0 35 0 35 35 0 8 0 bufpl 280 5031 0 135 350 0 350 350 0 8 0 anonpl 16 109598 0 93505 89 16 73 88 0 124 0 amapchunkpl 152 5731 0 5559 12 1 11 11 0 158 3 amappl16 192 5203 0 4253 60 12 48 60 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 28 0 19 1 0 1 1 0 8 0 amappl13 168 55 0 50 1 0 1 1 0 8 0 amappl12 160 14 0 12 2 1 1 1 0 8 0 amappl11 152 433 0 418 1 0 1 1 0 8 0 amappl10 144 29 0 23 1 0 1 1 0 8 0 amappl9 136 391 0 390 1 0 1 1 0 8 0 amappl8 128 373 0 342 2 0 2 2 0 8 0 amappl7 120 136 0 121 1 0 1 1 0 8 0 amappl6 112 397 0 393 1 0 1 1 0 8 0 amappl5 104 960 0 943 1 0 1 1 0 8 0 amappl4 96 523 0 493 1 0 1 1 0 8 0 amappl3 88 127 0 121 1 0 1 1 0 8 0 amappl2 80 7547 0 7468 2 0 2 2 0 8 0 amappl1 72 41129 0 40668 23 13 10 18 0 8 0 amappl 80 3065 0 3012 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 47 0 14 1 0 1 1 0 8 0 uaddrrnd 24 1074 0 1052 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1074 0 1052 1 0 1 1 0 8 0 vmmpekpl 168 11583 0 11546 2 0 2 2 0 8 0 vmmpepl 168 143422 0 141174 158 28 130 130 0 357 32 vmsppl 368 1073 0 1052 2 0 2 2 0 8 0 pdppl 4096 2155 0 2109 6 0 6 6 0 8 0 pvpl 32 346181 0 326769 208 16 192 208 0 265 21 pmappl 232 1073 0 1052 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 300 0 14 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8270fff0) 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_cmp4(ffffffff8291ad58,ffffffff8291ad58) at __sanitizer_cov_trace_cmp4 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f pvclock_get_timecount(ffffffff82731b58) at pvclock_get_timecount+0x125 sys/dev/pv/pvclock.c:243 nanouptime(ffff800021ed0868) at nanouptime+0x6a tc_delta sys/kern/kern_tc.c:131 [inline] nanouptime(ffff800021ed0868) at nanouptime+0x6a binuptime sys/kern/kern_tc.c:185 [inline] nanouptime(ffff800021ed0868) at nanouptime+0x6a sys/kern/kern_tc.c:195 clock_gettime(ffff800020e37288,3,ffff800021ed0868) at clock_gettime+0x88 sys/kern/kern_time.c:123 sys_clock_gettime(ffff800020e37288,ffff800021ed08d0,ffff800021ed0920) at sys_clock_gettime+0x4c sys/kern/kern_time.c:165 syscall(ffff800021ed09a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021ed09a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd46f0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{1}> trace soreceive(fffffd806f684640,0,ffff800020e1ece8,0,0,ffff800020e1ebf4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd806fc37390,ffff800020e1ece8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc9c8,6,ffff800020e1ece8,0,ffff800020e1edd0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc9c8,ffff800020e1ed80,ffff800020e1edd0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ee50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ee50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdb5d0, count: -6