uvm_fault(0xffffffff82874878, 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(0xffffffff82874878, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68b000,0,ffff800020e1da08,0,0,ffff800020e1d914) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68b000,0,ffff800020e1da08,0,0,ffff800020e1d914) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d950, count: 0 ddb{1}> trace soreceive(fffffd806f68b000,0,ffff800020e1da08,0,0,ffff800020e1d914) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68b000,0,ffff800020e1da08,0,0,ffff800020e1d914) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80788f82f8,ffff800020e1da08,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1da08,0,ffff800020e1daf0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1daa0,ffff800020e1daf0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1db70) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1db70) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe96b0, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d8f0 rbx 0xfffffd806d4cd200 rdx 0x32f08 acpi_pdirpa+0x1ed70 rcx 0 rax 0 r8 0xffffffff8233b511 soreceive+0x5c1 r9 0x3 r10 0xb40ef442f4ea30ba r11 0x52bc440512bd047d r12 0x938 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f68b000 rip 0xffffffff8233c050 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d800 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=482295 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc4e8,0xffff800020ddd398 process=0xffff800020df07c0 user=0xffff800020e18000, vmspace=0xfffffd807f000000 estcpu=0, cpticks=1, pctcpu=0.47 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91653 197927 83628 0 3 0x80 nanosleep syz-executor.1 91653 420475 83628 0 2 0x4000080 syz-executor.1 91653 417185 83628 0 3 0x4000080 fsleep syz-executor.1 83628 307330 84943 0 3 0x82 nanosleep syz-executor.1 84140 245769 0 0 3 0x14200 bored sosplice 84943 334652 77372 0 3 0x82 thrsleep syz-fuzzer 84943 403 77372 0 3 0x4000082 nanosleep syz-fuzzer 84943 514240 77372 0 3 0x4000082 nanosleep syz-fuzzer 84943 481284 77372 0 3 0x4000082 thrsleep syz-fuzzer 84943 58776 77372 0 2 0x4000002 syz-fuzzer 84943 288193 77372 0 3 0x4000082 thrsleep syz-fuzzer 84943 496631 77372 0 3 0x4000082 thrsleep syz-fuzzer 84943 132459 77372 0 3 0x4000082 thrsleep syz-fuzzer 84943 340074 77372 0 3 0x4000082 thrsleep syz-fuzzer 84943 438171 77372 0 3 0x4000082 thrsleep syz-fuzzer 77372 12034 35408 0 3 0x10008a pause ksh 35408 465331 14986 0 3 0x92 select sshd 55260 409961 1 0 3 0x100083 ttyin getty 14986 21173 1 0 3 0x80 select sshd 42812 126224 27511 74 3 0x100092 bpf pflogd 27511 50721 1 0 3 0x80 netio pflogd 99435 500315 23766 73 3 0x100090 kqread syslogd 23766 59642 1 0 3 0x100082 netio syslogd 29241 54892 1 77 3 0x100090 poll dhclient *39010 482295 1 0 7 0 dhclient 87215 24539 0 0 3 0x14200 bored smr 19157 413362 0 0 2 0x14200 zerothread 6272 334747 0 0 3 0x14200 aiodoned aiodoned 1177 409494 0 0 3 0x14200 syncer update 94894 317856 0 0 3 0x14200 cleaner cleaner 49476 436017 0 0 7 0x14200 reaper 19747 110209 0 0 3 0x14200 pgdaemon pagedaemon 10299 356957 0 0 3 0x14200 bored crynlk 13179 502443 0 0 3 0x14200 bored crypto 2289 199883 0 0 3 0x40014200 acpi0 acpi0 56256 238626 0 0 3 0x40014200 idle1 32316 36736 0 0 3 0x14200 bored softnet 64010 347793 0 0 3 0x14200 bored systqmp 70196 300373 0 0 3 0x14200 bored systq 77072 206664 0 0 3 0x40014200 bored softclock 75511 504146 0 0 3 0x40014200 idle0 1 394086 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 39010 (dhclient) thread 0xffff800020ddcea8 (482295) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828cb930) #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 9518 6416K 7064K 78643K 11178 0 pcb 13 8K 8K 78643K 43 0 rtable 86 3K 4K 78643K 293 0 ifaddr 66 13K 16K 78643K 107 0 counters 41 33K 34K 78643K 51 0 ioctlops 0 0K 4K 78643K 1490 0 iov 0 0K 16K 78643K 41 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1401 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 0K 0K 78643K 24 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 213 0 sigio 0 0K 0K 78643K 3 0 proc 61 63K 95K 78643K 490 0 subproc 16 1K 2K 78643K 53 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 101 0 ether_multi 1 0K 0K 78643K 5 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 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 238 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 130 88K 88K 78643K 1644 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 14 0 NDP 13 0K 0K 78643K 27 0 temp 100 3854K 3920K 78643K 11030 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 8 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 30 0 28 1 0 1 1 0 8 0 rtentry 112 65 0 32 2 0 2 2 0 8 0 unpcb 120 133 0 123 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 216 0 216 1 1 0 1 0 8 0 tcpcb 544 160 0 155 1 0 1 1 0 8 0 inpcb 296 297 0 289 2 0 2 2 0 8 1 nd6 48 15 0 12 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 swfcl 56 1 0 0 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 0 1 1 0 8 1 pfstscr 40 4 0 2 1 0 1 1 0 8 0 pffrag 232 1 0 1 1 0 1 1 0 482 1 pffrnode 88 1 0 1 1 0 1 1 0 8 1 pffrent 40 45 0 45 1 0 1 1 0 8 1 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 33 0 4 1 0 1 1 0 8 0 pfstkey 112 35 0 6 1 0 1 1 0 8 0 pfstate 328 33 0 5 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 257 0 112 12 0 12 12 0 8 2 art_table 32 258 0 112 2 0 2 2 0 8 0 art_node 16 64 0 34 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 1 0 1 1 0 8 1 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 22 0 12 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 1678 0 271 89 0 89 89 0 8 0 ffsino 272 1678 0 271 95 0 95 95 0 8 0 nchpl 144 2137 0 541 60 0 60 60 0 8 0 uvmvnodes 72 1870 0 0 34 0 34 34 0 8 0 vnodes 208 1870 0 0 99 0 99 99 0 8 0 namei 1024 5968 0 5968 1 0 1 1 0 8 1 percpumem 16 36 0 5 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 scxspl 192 6966 0 6966 8 4 4 7 0 8 4 plimitpl 152 24 0 16 1 0 1 1 0 8 0 sigapl 424 426 0 395 4 0 4 4 0 8 0 futexpl 56 2737 0 2736 1 0 1 1 0 8 0 knotepl 112 82 0 65 1 0 1 1 0 8 0 kqueuepl 144 22 0 18 1 0 1 1 0 8 0 pipelkpl 48 104 0 95 1 0 1 1 0 8 0 pipepl 120 208 0 193 1 0 1 1 0 8 0 fdescpl 496 410 0 395 3 0 3 3 0 8 0 filepl 152 2289 0 2207 5 0 5 5 0 8 0 lockfpl 104 68 0 67 1 0 1 1 0 8 0 lockfspl 48 21 0 20 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 223 0 214 1 0 1 1 0 8 0 zombiepl 144 395 0 394 1 0 1 1 0 8 0 processpl 984 426 0 394 5 0 5 5 0 8 0 procpl 624 815 0 772 4 0 4 4 0 8 0 sosppl 128 1 0 1 1 0 1 1 0 8 1 sockpl 400 462 0 442 4 0 4 4 0 8 2 mcl64k 65536 267 0 0 34 0 34 34 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 179 0 0 22 0 22 22 0 8 0 mtagpl 96 68 0 0 2 0 2 2 0 8 0 mbufpl 256 461 0 0 28 0 28 28 0 8 0 bufpl 280 4119 0 132 285 0 285 285 0 8 0 anonpl 16 59832 0 42515 83 1 82 82 0 124 12 amapchunkpl 152 2338 0 2166 9 1 8 9 0 158 0 amappl16 192 2170 0 1075 59 4 55 55 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 33 0 28 1 0 1 1 0 8 0 amappl13 168 37 0 34 1 0 1 1 0 8 0 amappl12 160 95 0 88 1 0 1 1 0 8 0 amappl11 152 72 0 56 1 0 1 1 0 8 0 amappl10 144 23 0 15 1 0 1 1 0 8 0 amappl9 136 464 0 461 1 0 1 1 0 8 0 amappl8 128 458 0 422 2 0 2 2 0 8 0 amappl7 120 124 0 111 1 0 1 1 0 8 0 amappl6 112 29 0 24 1 0 1 1 0 8 0 amappl5 104 399 0 382 1 0 1 1 0 8 0 amappl4 96 507 0 476 1 0 1 1 0 8 0 amappl3 88 113 0 108 1 0 1 1 0 8 0 amappl2 80 2259 0 2191 2 0 2 2 0 8 0 amappl1 72 19178 0 18732 23 13 10 18 0 8 0 amappl 80 1092 0 1042 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 24 417 0 395 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 417 0 395 1 0 1 1 0 8 0 vmmpekpl 168 6978 0 6941 2 0 2 2 0 8 0 vmmpepl 168 57897 0 55630 135 13 122 122 0 357 22 vmsppl 368 416 0 394 3 0 3 3 0 8 0 pdppl 4096 841 0 795 8 1 7 7 0 8 0 pvpl 32 188496 0 168487 194 0 194 194 0 265 31 pmappl 232 416 0 394 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 312 0 4 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(ffffffff826eeff0) 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(ffffffff828cb728) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828cb728) 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(ffffffff828cb728) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828cb728) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcfaf0,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807f000cf0) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807f000cf0) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020df0f70) 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: -12 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f68b000,0,ffff800020e1da08,0,0,ffff800020e1d914) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68b000,0,ffff800020e1da08,0,0,ffff800020e1d914) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80788f82f8,ffff800020e1da08,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1da08,0,ffff800020e1daf0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1daa0,ffff800020e1daf0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1db70) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1db70) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe96b0, count: -6