uvm_fault(0xffffffff828b8cf0, 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(0xffffffff828b8cf0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f683320,0,ffff800020e1ec28,0,0,ffff800020e1eb34) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f683320,0,ffff800020e1ec28,0,0,ffff800020e1eb34) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1eb70, count: 0 ddb{0}> trace soreceive(fffffd806f683320,0,ffff800020e1ec28,0,0,ffff800020e1eb34) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f683320,0,ffff800020e1ec28,0,0,ffff800020e1eb34) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80731f84c0,ffff800020e1ec28,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc278,6,ffff800020e1ec28,0,ffff800020e1ed10) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc278,ffff800020e1ecc0,ffff800020e1ed10) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ed90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ed90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd3380, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1eb10 rbx 0xfffffd806d404200 rdx 0x7ebe4 acpi_pdirpa+0x6aa4c rcx 0 rax 0 r8 0xffffffff81971eb1 soreceive+0x5c1 r9 0x3 r10 0xd4faa4d2d85435c r11 0xf5399a977afec754 r12 0x1382 __ALIGN_SIZE+0x382 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f683320 rip 0xffffffff819729f0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1ea20 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=464182 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddd118,0xffff800020ddc9d8 process=0xffff800020df0010 user=0xffff800020e19000, vmspace=0xfffffd807efff5c0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 81397 436441 56721 0 2 0 syz-executor.0 81397 458852 56721 0 3 0x4000080 fsleep syz-executor.0 72666 244202 0 0 3 0x14200 acct acct 12087 275083 0 0 3 0x14200 bored sosplice 56721 417362 55455 0 2 0x482 syz-executor.0 55455 289585 55026 0 3 0x82 thrsleep syz-fuzzer 55455 167716 55026 0 2 0x4000002 syz-fuzzer 55455 455650 55026 0 3 0x4000082 thrsleep syz-fuzzer 55455 487305 55026 0 3 0x4000082 thrsleep syz-fuzzer 55455 195070 55026 0 3 0x4000082 thrsleep syz-fuzzer 55455 384328 55026 0 3 0x4000082 thrsleep syz-fuzzer 55455 123740 55026 0 3 0x4000082 thrsleep syz-fuzzer 55455 444058 55026 0 3 0x4000082 thrsleep syz-fuzzer 55455 475866 55026 0 2 0x4000082 syz-fuzzer 55455 208986 55026 0 3 0x4000082 thrsleep syz-fuzzer 55026 199074 33943 0 3 0x10008a pause ksh 33943 192251 77467 0 3 0x92 select sshd 67745 130722 1 0 3 0x100083 ttyin getty 77467 200074 1 0 3 0x80 select sshd 91064 85771 69765 74 3 0x100092 bpf pflogd 69765 146869 1 0 3 0x80 netio pflogd 60566 205265 56405 73 3 0x100090 kqread syslogd 56405 98372 1 0 3 0x100082 netio syslogd 70245 223595 1 77 2 0x100010 dhclient *33122 464182 1 0 7 0 dhclient 52754 198858 0 0 3 0x14200 bored smr 60654 330713 0 0 2 0x14200 zerothread 78701 54746 0 0 3 0x14200 aiodoned aiodoned 59038 116515 0 0 3 0x14200 syncer update 27988 58934 0 0 3 0x14200 cleaner cleaner 41981 69238 0 0 7 0x14200 reaper 14055 63102 0 0 3 0x14200 pgdaemon pagedaemon 55426 498670 0 0 3 0x14200 bored crynlk 23986 91574 0 0 3 0x14200 bored crypto 51780 203015 0 0 3 0x40014200 acpi0 acpi0 15734 133463 0 0 3 0x40014200 idle1 5944 223311 0 0 2 0x14200 softnet 58305 88711 0 0 3 0x14200 bored systqmp 72694 212007 0 0 3 0x14200 bored systq 19254 464406 0 0 3 0x40014200 bored softclock 72543 262897 0 0 3 0x40014200 idle0 1 1304 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 33122 (dhclient) thread 0xffff800020ddc278 (464182) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8292f068) #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 5944 (softnet) thread 0xffff800020d88270 (223311) 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 9511 6412K 7248K 78643K 11684 0 pcb 13 8K 8K 78643K 53 0 rtable 89 11K 13K 78643K 329 0 ifaddr 65 13K 14K 78643K 116 0 counters 41 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1499 0 iov 0 0K 24K 78643K 23 0 mount 1 1K 1K 78643K 1 0 vnodes 1227 77K 77K 78643K 1491 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 80 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 338 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 83K 78643K 479 0 subproc 16 1K 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 35 0 in_multi 38 2K 3K 78643K 118 0 ether_multi 1 0K 0K 78643K 5 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 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 220 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 71K 72K 78643K 2048 0 UVM aobj 13 2K 2K 78643K 14 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 32 0 NDP 11 0K 0K 78643K 29 0 temp 108 3857K 3930K 78643K 7819 0 kqueue 3 4K 19K 78643K 24 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 3 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 72 0 39 2 0 2 2 0 8 0 unpcb 120 179 0 169 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 64 0 64 1 1 0 1 0 8 0 tcpcb 544 277 0 257 3 1 2 3 0 8 0 inpcb 296 474 0 467 2 0 2 2 0 8 1 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 19 0 16 1 0 1 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 2 0 1 2 1 1 1 0 482 0 pffrnode 88 2 0 1 2 1 1 1 0 8 0 pffrent 40 47 0 46 2 1 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 1 0 1 1 0 1 1 0 8 1 pfstitem 24 42 0 8 1 0 1 1 0 8 0 pfstkey 112 43 0 9 2 0 2 2 0 8 0 pfstate 328 43 0 9 3 0 3 3 0 8 0 pfrule 1360 24 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 290 0 141 15 2 13 14 0 8 1 art_table 32 291 0 141 2 0 2 2 0 8 0 art_node 16 71 0 42 1 0 1 1 0 8 0 sysvmsgpl 40 25 0 13 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 72 0 62 1 0 1 1 0 8 0 shmpl 112 11 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1812 0 407 89 0 89 89 0 8 0 ffsino 272 1812 0 407 95 0 95 95 0 8 1 nchpl 144 2486 0 878 60 0 60 60 0 8 0 uvmvnodes 72 2097 0 0 39 0 39 39 0 8 0 vnodes 208 2097 0 0 111 0 111 111 0 8 0 namei 1024 6890 0 6890 1 0 1 1 0 8 1 percpumem 16 37 0 6 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 0 1 0 1 1 0 8 0 scxspl 192 7325 0 7325 10 7 3 7 0 8 3 plimitpl 152 33 0 25 1 0 1 1 0 8 0 sigapl 424 555 0 523 4 0 4 4 0 8 0 futexpl 56 5339 0 5338 1 0 1 1 0 8 0 knotepl 112 85 0 68 1 0 1 1 0 8 0 kqueuepl 144 174 0 172 1 0 1 1 0 8 0 pipepl 304 135 0 126 2 1 1 2 0 8 0 fdescpl 496 538 0 523 3 0 3 3 0 8 0 filepl 152 3239 0 3158 7 1 6 6 0 8 2 lockfpl 104 91 0 90 1 0 1 1 0 8 0 lockfspl 48 30 0 29 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 304 0 295 1 0 1 1 0 8 0 zombiepl 144 523 0 522 1 0 1 1 0 8 0 processpl 992 555 0 522 5 0 5 5 0 8 0 procpl 624 1262 0 1219 4 0 4 4 0 8 0 sockpl 400 685 0 666 5 0 5 5 0 8 3 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 180 0 0 22 0 22 22 0 8 0 mtagpl 96 16 0 0 1 0 1 1 0 8 0 mbufpl 256 312 0 0 18 0 18 18 0 8 0 bufpl 280 3963 0 133 274 0 274 274 0 8 0 anonpl 16 65961 0 48827 79 1 78 78 0 124 7 amapchunkpl 152 3516 0 3367 20 8 12 20 0 158 5 amappl16 192 2352 0 1433 48 0 48 48 0 8 2 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 26 0 22 1 0 1 1 0 8 0 amappl13 168 29 0 25 1 0 1 1 0 8 0 amappl12 160 322 0 315 1 0 1 1 0 8 0 amappl11 152 74 0 57 1 0 1 1 0 8 0 amappl10 144 19 0 14 1 0 1 1 0 8 0 amappl9 136 390 0 388 1 0 1 1 0 8 0 amappl8 128 362 0 323 2 0 2 2 0 8 0 amappl7 120 119 0 106 1 0 1 1 0 8 0 amappl6 112 25 0 22 2 1 1 1 0 8 0 amappl5 104 737 0 720 1 0 1 1 0 8 0 amappl4 96 496 0 467 1 0 1 1 0 8 0 amappl3 88 107 0 101 1 0 1 1 0 8 0 amappl2 80 3360 0 3288 2 0 2 2 0 8 0 amappl1 72 24667 0 24226 23 13 10 18 0 8 0 amappl 80 1521 0 1473 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 13 0 1 1 0 1 1 0 8 0 uaddrrnd 24 544 0 523 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 544 0 523 1 0 1 1 0 8 0 vmmpekpl 168 8294 0 8257 2 0 2 2 0 8 0 vmmpepl 168 75774 0 73682 127 21 106 121 0 357 9 vmsppl 368 543 0 522 3 0 3 3 0 8 1 pdppl 4096 1095 0 1050 6 0 6 6 0 8 0 pvpl 32 215226 0 195028 187 1 186 186 0 265 20 pmappl 232 543 0 522 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 274 0 6 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f683320,0,ffff800020e1ec28,0,0,ffff800020e1eb34) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f683320,0,ffff800020e1ec28,0,0,ffff800020e1eb34) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80731f84c0,ffff800020e1ec28,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc278,6,ffff800020e1ec28,0,ffff800020e1ed10) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc278,ffff800020e1ecc0,ffff800020e1ed10) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ed90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ed90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd3380, 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 __sanitizer_cov_trace_cmp4(ac3df,ac3e0) at __sanitizer_cov_trace_cmp4+0x5d kd_curproc sys/dev/kcov.c:416 [inline] __sanitizer_cov_trace_cmp4(ac3df,ac3e0) at __sanitizer_cov_trace_cmp4+0x5d trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(ac3df,ac3e0) at __sanitizer_cov_trace_cmp4+0x5d sys/dev/kcov.c:135 __mp_lock(ffffffff8292ee60) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292ee60) at __mp_lock+0x139 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcf180,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efff2e0) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efff2e0) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff8000fffff758) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89860) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -10