uvm_fault(0xffffffff828a5880, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff828a5880, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f67f320,0,ffff800020e1d5f8,0,0,ffff800020e1d504) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f67f320,0,ffff800020e1d5f8,0,0,ffff800020e1d504) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d540, count: 0 ddb{1}> trace soreceive(fffffd806f67f320,0,ffff800020e1d5f8,0,0,ffff800020e1d504) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f67f320,0,ffff800020e1d5f8,0,0,ffff800020e1d504) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80779f7260,ffff800020e1d5f8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc278,6,ffff800020e1d5f8,0,ffff800020e1d6e0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc278,ffff800020e1d690,ffff800020e1d6e0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d760) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d760) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffede30, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d4e0 rbx 0xfffffd806a883e00 rdx 0x366b0 acpi_pdirpa+0x22518 rcx 0 rax 0 r8 0xffffffff8104b9a1 soreceive+0x5c1 r9 0x3 r10 0x4d6c46aa4447fb0a r11 0xcf2f93b71cfcdbe3 r12 0xf0a r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f67f320 rip 0xffffffff8104c4e0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d3f0 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=410755 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcc38,0xffff800020ddceb8 process=0xffff800020df07c0 user=0xffff800020e18000, vmspace=0xfffffd807f000170 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 50232 62837 57268 0 2 0 syz-executor.0 50232 504524 57268 0 2 0x4000000 syz-executor.0 51618 491983 0 0 3 0x14200 bored sosplice 61337 21018 0 0 3 0x14200 acct acct 26436 232859 11151 0 7 0x2 syz-executor.1 57268 426445 11151 0 3 0x82 nanosleep syz-executor.0 11151 329987 28181 0 3 0x82 thrsleep syz-fuzzer 11151 485705 28181 0 3 0x4000082 nanosleep syz-fuzzer 11151 113317 28181 0 3 0x4000082 thrsleep syz-fuzzer 11151 117903 28181 0 3 0x4000082 kqread syz-fuzzer 11151 463653 28181 0 3 0x4000082 nanosleep syz-fuzzer 11151 17379 28181 0 3 0x4000082 thrsleep syz-fuzzer 11151 135224 28181 0 3 0x4000082 thrsleep syz-fuzzer 11151 486675 28181 0 3 0x4000082 thrsleep syz-fuzzer 11151 401547 28181 0 3 0x4000082 thrsleep syz-fuzzer 11151 48572 28181 0 3 0x4000082 thrsleep syz-fuzzer 28181 363818 40796 0 3 0x10008a pause ksh 40796 174941 69285 0 3 0x92 select sshd 32910 41582 1 0 3 0x100083 ttyin getty 69285 241886 1 0 3 0x80 select sshd 24626 428373 5968 74 3 0x100092 bpf pflogd 5968 300185 1 0 3 0x80 netio pflogd 65776 261308 6513 73 3 0x100090 kqread syslogd 6513 334248 1 0 3 0x100082 netio syslogd 35030 156627 1 77 3 0x100090 poll dhclient *31298 410755 1 0 7 0 dhclient 75683 90772 0 0 3 0x14200 bored smr 67490 428177 0 0 3 0x14200 pgzero zerothread 88975 400628 0 0 3 0x14200 aiodoned aiodoned 38803 94331 0 0 3 0x14200 syncer update 6106 183723 0 0 3 0x14200 cleaner cleaner 37346 149795 0 0 3 0x14200 reaper reaper 62630 74881 0 0 3 0x14200 pgdaemon pagedaemon 72104 85676 0 0 3 0x14200 bored crynlk 89133 113439 0 0 3 0x14200 bored crypto 37033 28341 0 0 3 0x40014200 acpi0 acpi0 68577 85640 0 0 3 0x40014200 idle1 3273 295688 0 0 3 0x14200 bored softnet 90979 410117 0 0 3 0x14200 bored systqmp 14753 38377 0 0 3 0x14200 bored systq 41487 19859 0 0 3 0x40014200 bored softclock 10994 114414 0 0 3 0x40014200 idle0 1 387212 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 31298 (dhclient) thread 0xffff800020ddc278 (410755) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828adde8) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9516 6416K 6666K 78643K 10823 0 pcb 13 8K 8K 78643K 67 0 rtable 109 8K 8K 78643K 291 0 ifaddr 74 14K 16K 78643K 101 0 counters 43 33K 34K 78643K 45 0 ioctlops 0 0K 4K 78643K 1610 0 iov 0 0K 12K 78643K 22 0 mount 1 1K 1K 78643K 1 0 vnodes 1226 77K 77K 78643K 1308 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 44 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 206 0 proc 63 63K 83K 78643K 445 0 subproc 32 2K 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 10 0 in_multi 50 2K 3K 78643K 115 0 ether_multi 1 0K 0K 78643K 5 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 220 0 pfkey data 0 0K 0K 78643K 2 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 125 39K 55K 78643K 1697 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 38 0 NDP 12 0K 0K 78643K 25 0 temp 107 3861K 3929K 78643K 7918 0 kqueue 5 8K 8K 78643K 19 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 7 0 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 23 0 21 1 0 1 1 0 8 0 rtentry 112 58 0 23 2 0 2 2 0 8 0 unpcb 120 90 0 80 1 0 1 1 0 8 0 syncache 264 10 0 10 2 1 1 1 0 8 1 tcpqe 32 135 0 135 1 1 0 1 0 8 0 tcpcb 544 92 0 88 1 0 1 1 0 8 0 inpcb 296 425 0 415 3 1 2 2 0 8 0 nd6 48 18 0 15 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 2 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfstscr 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 17 0 9 2 1 1 1 0 8 0 pfstitem 24 26 0 10 1 0 1 1 0 8 0 pfstkey 112 27 0 11 1 0 1 1 0 8 0 pfstate 328 27 0 11 2 0 2 2 0 8 0 pfrule 1360 29 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 189 0 45 12 0 12 12 0 8 2 art_table 32 190 0 45 2 0 2 2 0 8 0 art_node 16 57 0 27 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 4 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 30 0 20 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 1675 0 271 89 0 89 89 0 8 0 ffsino 272 1675 0 271 96 1 95 95 0 8 0 nchpl 144 2147 0 549 60 0 60 60 0 8 0 uvmvnodes 72 1779 0 0 33 0 33 33 0 8 0 vnodes 208 1779 0 0 94 0 94 94 0 8 0 namei 1024 5983 0 5983 3 2 1 1 0 8 1 percpumem 16 33 0 1 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 5 1 0 1 1 0 8 0 pfiaddrpl 120 8 0 2 2 1 1 1 0 8 0 scxspl 192 6465 0 6465 11 10 1 7 0 8 1 plimitpl 152 23 0 15 1 0 1 1 0 8 0 sigapl 424 423 0 390 4 0 4 4 0 8 0 futexpl 56 2927 0 2927 2 1 1 1 0 8 1 knotepl 112 81 0 62 1 0 1 1 0 8 0 kqueuepl 144 103 0 98 1 0 1 1 0 8 0 pipelkpl 48 97 0 87 1 0 1 1 0 8 0 pipepl 120 194 0 175 1 0 1 1 0 8 0 fdescpl 496 406 0 390 3 0 3 3 0 8 0 filepl 152 2552 0 2448 6 1 5 5 0 8 1 lockfpl 104 43 0 42 1 0 1 1 0 8 0 lockfspl 48 12 0 11 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 383 0 374 1 0 1 1 0 8 0 zombiepl 144 390 0 390 2 1 1 1 0 8 1 processpl 984 423 0 390 6 1 5 5 0 8 0 procpl 624 921 0 878 5 0 5 5 0 8 1 srpgc 64 2 0 0 1 0 1 1 0 8 0 sockpl 400 542 0 520 4 1 3 3 0 8 0 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 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 231 0 0 28 0 28 28 0 8 0 mtagpl 96 24 0 0 1 0 1 1 0 8 0 mbufpl 256 242 0 0 15 0 15 15 0 8 0 bufpl 280 3866 0 133 267 0 267 267 0 8 0 anonpl 16 51664 0 35464 69 1 68 68 0 124 0 amapchunkpl 152 2241 0 2089 8 1 7 8 0 158 0 amappl16 192 1611 0 713 46 0 46 46 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 195 0 189 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 191 0 182 1 0 1 1 0 8 0 amappl11 152 58 0 43 1 0 1 1 0 8 0 amappl10 144 17 0 12 1 0 1 1 0 8 0 amappl9 136 383 0 381 1 0 1 1 0 8 0 amappl8 128 356 0 320 2 0 2 2 0 8 0 amappl7 120 117 0 105 1 0 1 1 0 8 0 amappl6 112 23 0 19 1 0 1 1 0 8 0 amappl5 104 229 0 212 1 0 1 1 0 8 0 amappl4 96 579 0 545 1 0 1 1 0 8 0 amappl3 88 198 0 190 1 0 1 1 0 8 0 amappl2 80 2387 0 2314 2 0 2 2 0 8 0 amappl1 72 18994 0 18559 23 13 10 18 0 8 0 amappl 80 1172 0 1126 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 412 0 395 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 412 0 395 1 0 1 1 0 8 0 vmmpekpl 168 7223 0 7188 2 0 2 2 0 8 0 vmmpepl 168 56628 0 54566 122 25 97 115 0 357 4 vmsppl 368 411 0 395 2 0 2 2 0 8 0 pdppl 4096 831 0 791 7 1 6 6 0 8 0 pvpl 32 174104 0 154776 168 5 163 166 0 265 2 pmappl 232 411 0 395 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 273 0 8 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82764ff0) 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(ffffffff828adbe0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828adbe0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff828adbe0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828adbe0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 syscall(ffff800023101c40) at syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff800023101c40) at syscall+0x400 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe04e0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f67f320,0,ffff800020e1d5f8,0,0,ffff800020e1d504) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f67f320,0,ffff800020e1d5f8,0,0,ffff800020e1d504) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80779f7260,ffff800020e1d5f8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc278,6,ffff800020e1d5f8,0,ffff800020e1d6e0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc278,ffff800020e1d690,ffff800020e1d6e0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d760) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d760) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffede30, count: -6