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(fffffd806f683000,0,ffff800020e1d698,0,0,ffff800020e1d5a4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f683000,0,ffff800020e1d698,0,0,ffff800020e1d5a4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d5e0, count: 0 ddb{0}> trace soreceive(fffffd806f683000,0,ffff800020e1d698,0,0,ffff800020e1d5a4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f683000,0,ffff800020e1d698,0,0,ffff800020e1d5a4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80774571c8,ffff800020e1d698,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc9c8,6,ffff800020e1d698,0,ffff800020e1d780) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc9c8,ffff800020e1d730,ffff800020e1d780) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d800) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d800) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce2e0, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d580 rbx 0xfffffd80641af000 rdx 0x59e48 acpi_pdirpa+0x45cb0 rcx 0 rax 0 r8 0xffffffff81628ea1 soreceive+0x5c1 r9 0x3 r10 0x46ef8a5c2eecfcbe r11 0x47e9da916584a22b r12 0x752 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f683000 rip 0xffffffff816299e0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d490 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=361173 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcea8,0xffff800020ddcc48 process=0xffff800020df1348 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 70309 406153 0 0 3 0x14280 nfsidl nfsio 9502 27732 0 0 3 0x14280 nfsidl nfsio 68390 271747 0 0 3 0x14280 nfsidl nfsio 2619 216046 0 0 3 0x14280 nfsidl nfsio 58081 136696 0 0 3 0x14280 nfsidl nfsio 21533 218045 0 0 3 0x14280 nfsidl nfsio 64014 97595 0 0 3 0x14280 nfsidl nfsio 11290 446017 0 0 3 0x14280 nfsidl nfsio 86064 232325 0 0 3 0x14280 nfsidl nfsio 14652 295424 0 0 3 0x14280 nfsidl nfsio 53828 393402 0 0 3 0x14280 nfsidl nfsio 1744 323490 0 0 3 0x14280 nfsidl nfsio 97619 517951 0 0 3 0x14280 nfsidl nfsio 58290 451981 0 0 3 0x14280 nfsidl nfsio 49609 103958 0 0 3 0x14280 nfsidl nfsio 27992 522429 0 0 3 0x14280 nfsidl nfsio 57877 309992 0 0 3 0x14280 nfsidl nfsio 15441 10878 0 0 3 0x14280 nfsidl nfsio 81662 447770 0 0 3 0x14280 nfsidl nfsio 35177 116476 0 0 3 0x14280 nfsidl nfsio 72195 106418 0 0 3 0x14200 acct acct 55060 178315 0 0 3 0x14200 bored sosplice 29002 439980 25837 0 2 0x482 syz-executor.0 25837 106885 68489 0 3 0x82 thrsleep syz-fuzzer 25837 241360 68489 0 3 0x4000082 thrsleep syz-fuzzer 25837 75539 68489 0 3 0x4000082 thrsleep syz-fuzzer 25837 493176 68489 0 3 0x4000082 thrsleep syz-fuzzer 25837 383747 68489 0 3 0x4000082 thrsleep syz-fuzzer 25837 338002 68489 0 3 0x4000082 thrsleep syz-fuzzer 25837 418345 68489 0 3 0x4000082 thrsleep syz-fuzzer 25837 524045 68489 0 3 0x4000082 thrsleep syz-fuzzer 25837 181582 68489 0 3 0x4000082 thrsleep syz-fuzzer 25837 284139 68489 0 2 0x4000082 syz-fuzzer 68489 442789 37240 0 3 0x10008a pause ksh 37240 346184 10397 0 3 0x92 select sshd 75298 116854 1 0 3 0x100083 ttyin getty 10397 401575 1 0 3 0x80 select sshd 75891 521065 70818 74 3 0x100092 bpf pflogd 70818 156653 1 0 3 0x80 netio pflogd 85355 231245 44371 73 3 0x100090 kqread syslogd 44371 437310 1 0 3 0x100082 netio syslogd 35910 490197 1 77 3 0x100090 poll dhclient *74141 361173 1 0 7 0 dhclient 55401 269988 0 0 3 0x14200 bored smr 45400 334271 0 0 2 0x14200 zerothread 28374 308087 0 0 3 0x14200 aiodoned aiodoned 65577 489670 0 0 3 0x14200 syncer update 9485 244717 0 0 3 0x14200 cleaner cleaner 62010 294378 0 0 7 0x14200 reaper 1235 381952 0 0 3 0x14200 pgdaemon pagedaemon 78115 283129 0 0 3 0x14200 bored crynlk 75670 193618 0 0 3 0x14200 bored crypto 56289 437281 0 0 3 0x40014200 acpi0 acpi0 37536 204501 0 0 3 0x40014200 idle1 2945 415087 0 0 2 0x14200 softnet 33394 81947 0 0 3 0x14200 bored systqmp 64440 407952 0 0 3 0x14200 bored systq 36315 481128 0 0 3 0x40014200 bored softclock 60045 255587 0 0 3 0x40014200 idle0 1 237640 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 74141 (dhclient) thread 0xffff800020ddc9c8 (361173) 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 Process 2945 (softnet) thread 0xffff800020d88270 (415087) 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 9522 6417K 6680K 78643K 11072 0 pcb 13 8K 8K 78643K 68 0 rtable 91 4K 5K 78643K 350 0 ifaddr 77 15K 18K 78643K 135 0 counters 41 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1507 0 iov 0 0K 16K 78643K 39 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1373 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 9 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 58 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 3 5K 25K 78643K 350 0 sigio 0 0K 0K 78643K 7 0 proc 62 63K 95K 78643K 507 0 subproc 16 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 22 0 in_multi 50 2K 3K 78643K 111 0 ether_multi 1 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 244 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 88K 88K 78643K 2106 0 UVM aobj 26 2K 2K 78643K 28 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 24 0 NDP 12 0K 0K 78643K 27 0 temp 124 3866K 3930K 78643K 9633 0 kqueue 3 4K 12K 78643K 20 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 10 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 33 0 31 1 0 1 1 0 8 0 rtentry 112 62 0 29 2 0 2 2 0 8 0 unpcb 120 260 0 250 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 1763 0 1763 1 1 0 1 0 8 0 tcpcb 544 120 0 116 1 0 1 1 0 8 0 inpcb 296 342 0 335 4 2 2 2 0 8 1 nd6 48 11 0 8 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 4 0 3 1 0 1 1 0 482 0 pffrnode 88 4 0 3 1 0 1 1 0 8 0 pffrent 40 139 0 138 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 18 0 15 2 1 1 1 0 8 0 pfstitem 24 39 0 5 1 0 1 1 0 8 0 pfstkey 112 40 0 6 1 0 1 1 0 8 0 pfstate 328 40 0 6 3 0 3 3 0 8 0 pfsrctr 152 11 0 8 1 0 1 1 0 8 0 pfrule 1360 28 0 21 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 238 0 91 12 0 12 12 0 8 0 art_table 32 239 0 91 2 0 2 2 0 8 0 art_node 16 61 0 31 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 10 1 0 1 1 0 8 0 semupl 112 7 0 7 1 1 0 1 0 8 0 semapl 112 56 0 46 1 0 1 1 0 8 0 shmpl 112 26 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1846 0 436 89 0 89 89 0 8 0 ffsino 272 1846 0 436 96 1 95 95 0 8 0 nchpl 144 2736 0 1131 60 0 60 60 0 8 0 uvmvnodes 72 2004 0 0 37 0 37 37 0 8 0 vnodes 208 2004 0 0 106 0 106 106 0 8 0 namei 1024 7361 0 7361 3 2 1 1 0 8 1 percpumem 16 38 0 7 1 0 1 1 0 8 0 vcpupl 1984 7 0 0 1 0 1 1 0 8 0 vmpool 560 7 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 7 0 5 2 1 1 1 0 8 0 scxspl 192 7654 0 7654 10 9 1 7 0 8 1 plimitpl 152 35 0 27 1 0 1 1 0 8 0 sigapl 424 584 0 533 8 1 7 7 0 8 1 futexpl 56 4523 0 4523 3 2 1 1 0 8 1 knotepl 112 98 0 81 1 0 1 1 0 8 0 kqueuepl 144 42 0 40 1 0 1 1 0 8 0 pipelkpl 48 126 0 117 1 0 1 1 0 8 0 pipepl 120 252 0 237 1 0 1 1 0 8 0 fdescpl 496 547 0 533 3 0 3 3 0 8 0 filepl 152 3254 0 3175 7 2 5 5 0 8 1 lockfpl 104 94 0 93 1 0 1 1 0 8 0 lockfspl 48 33 0 32 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 96 242 0 233 1 0 1 1 0 8 0 zombiepl 144 533 0 531 3 2 1 1 0 8 0 processpl 984 584 0 531 8 1 7 7 0 8 0 procpl 624 1286 0 1224 6 0 6 6 0 8 0 sockpl 400 642 0 623 9 5 4 4 0 8 2 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 11 0 0 2 0 2 2 0 8 0 mcl2k 2048 204 0 0 25 0 25 25 0 8 0 mtagpl 96 40 0 0 1 0 1 1 0 8 0 mbufpl 256 562 0 0 34 0 34 34 0 8 0 bufpl 280 4110 0 136 284 0 284 284 0 8 0 anonpl 16 65503 0 49052 76 8 68 68 0 124 0 amapchunkpl 152 3127 0 2982 10 2 8 10 0 158 0 amappl16 192 2367 0 1492 51 6 45 46 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 161 0 154 1 0 1 1 0 8 0 amappl13 168 67 0 64 1 0 1 1 0 8 0 amappl12 160 143 0 138 2 1 1 1 0 8 0 amappl11 152 210 0 194 1 0 1 1 0 8 0 amappl10 144 31 0 19 1 0 1 1 0 8 0 amappl9 136 384 0 383 1 0 1 1 0 8 0 amappl8 128 387 0 343 2 0 2 2 0 8 0 amappl7 120 128 0 115 1 0 1 1 0 8 0 amappl6 112 181 0 175 1 0 1 1 0 8 0 amappl5 104 429 0 412 1 0 1 1 0 8 0 amappl4 96 514 0 488 1 0 1 1 0 8 0 amappl3 88 137 0 132 1 0 1 1 0 8 0 amappl2 80 3501 0 3440 2 0 2 2 0 8 0 amappl1 72 22115 0 21688 23 13 10 18 0 8 0 amappl 80 1540 0 1494 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 27 0 2 1 0 1 1 0 8 0 uaddrrnd 24 554 0 533 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 554 0 533 1 0 1 1 0 8 0 vmmpekpl 168 8373 0 8333 2 0 2 2 0 8 0 vmmpepl 168 73852 0 71909 123 26 97 113 0 357 4 vmsppl 368 553 0 532 3 0 3 3 0 8 1 pdppl 4096 1115 0 1071 9 2 7 7 0 8 1 pvpl 32 209048 0 189514 177 12 165 167 0 265 3 pmappl 232 553 0 532 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 301 0 13 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f683000,0,ffff800020e1d698,0,0,ffff800020e1d5a4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f683000,0,ffff800020e1d698,0,0,ffff800020e1d5a4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80774571c8,ffff800020e1d698,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc9c8,6,ffff800020e1d698,0,ffff800020e1d780) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc9c8,ffff800020e1d730,ffff800020e1d780) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d800) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d800) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce2e0, 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(ffffffff828c2938) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c2938) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcf5f0,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807f000000) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807f000000) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020e23738) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89380) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -9