uvm_fault(0xffffffff827b2830, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff827b2830, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f688190,0,ffff800020e1e7d8,0,0,ffff800020e1e6e4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 end trace frame: 0xffff800020e1e720, count: 0 ddb{0}> trace soreceive(fffffd806f688190,0,ffff800020e1e7d8,0,0,ffff800020e1e6e4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd80785f6558,ffff800020e1e7d8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1e7d8,0,ffff800020e1e8c0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1e870,ffff800020e1e8c0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e940) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e940) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc2450, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1e6c0 rbx 0xfffffd80644c1d00 rdx 0x62012 acpi_pdirpa+0x4de7a rcx 0 rax 0xfffffd806f688190 r8 0xffffffff81483eb6 soreceive+0xbe6 r9 0x3 r10 0xec82d716d182a8b7 r11 0xf221c1d600221290 r12 0xfffffd0000000000 r13 0 r14 0x1 r15 0 rip 0xffffffff8148409d soreceive+0xdcd cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800020e1e5d0 ss 0x10 soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{0}> show proc PROC (dhclient) pid=471574 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddd118,0xffff800020ddcc48 process=0xffff800020df0bb0 user=0xffff800020e19000, vmspace=0xfffffd807efff2e0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 70641 186156 0 0 3 0x14200 bored sosplice 75669 430012 35 0 3 0x82 piperd syz-executor.1 35 175437 90555 0 3 0x82 thrsleep syz-fuzzer 35 492938 90555 0 2 0x4000482 syz-fuzzer 35 487045 90555 0 3 0x4000082 thrsleep syz-fuzzer 35 340511 90555 0 3 0x4000082 kqread syz-fuzzer 35 497194 90555 0 3 0x4000082 thrsleep syz-fuzzer 35 80137 90555 0 3 0x4000082 thrsleep syz-fuzzer 35 135323 90555 0 3 0x4000082 thrsleep syz-fuzzer 35 44471 90555 0 3 0x4000082 thrsleep syz-fuzzer 35 69104 90555 0 2 0x4000002 syz-fuzzer 35 102104 90555 0 2 0x4000002 syz-fuzzer 90555 500770 64479 0 3 0x10008a pause ksh 64479 273223 18021 0 3 0x92 select sshd 3756 504080 1 0 3 0x100083 ttyin getty 18021 11345 1 0 3 0x80 select sshd 9133 281456 54239 74 3 0x100092 bpf pflogd 54239 210996 1 0 3 0x80 netio pflogd 20277 158871 24409 73 3 0x100090 kqread syslogd 24409 524068 1 0 3 0x100082 netio syslogd 56810 494269 1 77 2 0x100010 dhclient *51148 471574 1 0 7 0 dhclient 60541 332947 0 0 3 0x14200 bored smr 35040 504396 0 0 2 0x14200 zerothread 52238 457497 0 0 3 0x14200 aiodoned aiodoned 26922 449089 0 0 3 0x14200 syncer update 98073 354312 0 0 3 0x14200 cleaner cleaner 24774 196566 0 0 7 0x14200 reaper 94543 360800 0 0 3 0x14200 pgdaemon pagedaemon 52553 18248 0 0 3 0x14200 bored crynlk 70257 32123 0 0 3 0x14200 bored crypto 37986 44676 0 0 3 0x40014200 acpi0 acpi0 31157 148600 0 0 3 0x40014200 idle1 71557 421674 0 0 2 0x14200 softnet 29391 344821 0 0 3 0x14200 bored systqmp 75078 352087 0 0 3 0x14200 bored systq 88983 97771 0 0 3 0x40014200 bored softclock 97040 183799 0 0 3 0x40014200 idle0 1 400277 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 51148 (dhclient) thread 0xffff800020ddc758 (471574) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff829013e0) #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 Process 71557 (softnet) thread 0xffff800020d88270 (421674) 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 9504 6424K 6693K 78643K 11010 0 pcb 13 8K 8K 78643K 85 0 rtable 97 6K 9K 78643K 395 0 ifaddr 58 12K 15K 78643K 131 0 sysctl 2 0K 0K 78643K 2 0 counters 41 33K 34K 78643K 51 0 ioctlops 0 0K 4K 78643K 1525 0 iov 0 0K 12K 78643K 532 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 77K 78643K 1376 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 60 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 3 5K 25K 78643K 359 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 95K 78643K 499 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 27 0 in_multi 46 2K 3K 78643K 145 0 ether_multi 1 0K 0K 78643K 10 0 mrt 0 0K 0K 78643K 2 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 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 121 23K 31K 78643K 2034 0 UVM aobj 5 2K 2K 78643K 7 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 52 0 NDP 9 0K 0K 78643K 30 0 temp 90 3860K 3928K 78643K 10614 0 kqueue 3 4K 8K 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 8 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 35 0 33 1 0 1 1 0 8 0 rtentry 112 78 0 45 2 0 2 2 0 8 0 unpcb 120 165 0 155 1 0 1 1 0 8 0 syncache 264 7 0 7 3 2 1 1 0 8 1 tcpqe 32 12 0 12 1 1 0 1 0 8 0 tcpcb 544 125 0 121 1 0 1 1 0 8 0 inpcb 296 449 0 442 4 2 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 23 0 20 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 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 36 0 31 2 1 1 1 0 8 0 pfstitem 24 14 0 5 1 0 1 1 0 8 0 pfstkey 112 14 0 5 1 0 1 1 0 8 0 pfstate 328 14 0 5 2 0 2 2 0 8 0 pfsrctr 152 37 0 31 1 0 1 1 0 8 0 pfrule 1360 35 0 22 4 2 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 256 0 112 12 0 12 12 0 8 0 art_table 32 257 0 112 2 0 2 2 0 8 0 art_node 16 77 0 47 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 10 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 56 0 46 1 0 1 1 0 8 0 shmpl 112 4 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1844 0 446 88 0 88 88 0 8 0 ffsino 272 1844 0 446 94 0 94 94 0 8 0 nchpl 144 2740 0 1152 60 0 60 60 0 8 0 uvmvnodes 72 2006 0 0 37 0 37 37 0 8 0 vnodes 208 2006 0 0 106 0 106 106 0 8 0 namei 1024 7534 0 7534 1 0 1 1 0 8 1 percpumem 16 36 0 5 1 0 1 1 0 8 0 vmpool 560 6 0 6 2 2 0 1 0 8 0 pfiaddrpl 120 14 0 8 2 1 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 7309 0 7309 8 7 1 7 0 8 1 plimitpl 152 41 0 33 1 0 1 1 0 8 0 sigapl 424 572 0 542 4 0 4 4 0 8 0 futexpl 56 6044 0 6044 1 0 1 1 0 8 1 knotepl 112 99 0 86 1 0 1 1 0 8 0 kqueuepl 144 63 0 61 1 0 1 1 0 8 0 pipepl 304 123 0 116 2 1 1 2 0 8 0 fdescpl 496 556 0 542 3 0 3 3 0 8 0 filepl 152 3444 0 3367 5 0 5 5 0 8 1 lockfpl 104 64 0 63 1 0 1 1 0 8 0 lockfspl 48 26 0 25 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 96 262 0 253 1 0 1 1 0 8 0 zombiepl 144 542 0 541 1 0 1 1 0 8 0 processpl 992 572 0 541 5 0 5 5 0 8 0 procpl 624 1217 0 1177 4 0 4 4 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 10 0 10 3 2 1 1 0 8 1 sockpl 400 653 0 634 3 0 3 3 0 8 1 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 163 0 0 20 0 20 20 0 8 0 mtagpl 96 20 0 0 1 0 1 1 0 8 0 mbufpl 256 214 0 0 12 0 12 12 0 8 0 bufpl 280 3885 0 133 268 0 268 268 0 8 0 anonpl 16 72503 0 56171 85 11 74 77 0 124 7 amapchunkpl 152 3189 0 3053 14 3 11 11 0 158 3 amappl16 192 2849 0 1943 56 10 46 55 0 8 0 amappl15 184 3 0 1 1 0 1 1 0 8 0 amappl14 176 32 0 27 1 0 1 1 0 8 0 amappl13 168 70 0 67 1 0 1 1 0 8 0 amappl12 160 42 0 38 1 0 1 1 0 8 0 amappl11 152 60 0 45 1 0 1 1 0 8 0 amappl10 144 25 0 18 1 0 1 1 0 8 0 amappl9 136 399 0 396 1 0 1 1 0 8 0 amappl8 128 380 0 345 2 0 2 2 0 8 0 amappl7 120 131 0 120 1 0 1 1 0 8 0 amappl6 112 25 0 19 1 0 1 1 0 8 0 amappl5 104 451 0 434 1 0 1 1 0 8 0 amappl4 96 497 0 469 1 0 1 1 0 8 0 amappl3 88 125 0 120 1 0 1 1 0 8 0 amappl2 80 3470 0 3402 2 0 2 2 0 8 0 amappl1 72 21941 0 21503 23 13 10 18 0 8 0 amappl 80 1481 0 1437 1 0 1 1 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 6 0 2 1 0 1 1 0 8 0 uaddrrnd 24 562 0 548 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 562 0 548 1 0 1 1 0 8 0 vmmpekpl 168 7854 0 7821 2 0 2 2 0 8 0 vmmpepl 168 75115 0 73131 124 31 93 121 0 357 2 vmsppl 368 561 0 547 2 0 2 2 0 8 0 pdppl 4096 1131 0 1094 7 2 5 6 0 8 0 pvpl 32 219683 0 200418 193 14 179 183 0 265 20 pmappl 232 561 0 547 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 258 0 6 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f688190,0,ffff800020e1e7d8,0,0,ffff800020e1e6e4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd80785f6558,ffff800020e1e7d8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1e7d8,0,ffff800020e1e8c0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1e870,ffff800020e1e8c0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e940) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e940) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc2450, 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(ffffffff829011d8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829011d8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcf790,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efff8a0) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efff8a0) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020ebb380) 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: -9