uvm_fault(0xffffffff82805ac0, 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(0xffffffff82805ac0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f689190,0,ffff800020e1d4b8,0,0,ffff800020e1d3c4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f689190,0,ffff800020e1d4b8,0,0,ffff800020e1d3c4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d400, count: 0 ddb{0}> trace soreceive(fffffd806f689190,0,ffff800020e1d4b8,0,0,ffff800020e1d3c4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f689190,0,ffff800020e1d4b8,0,0,ffff800020e1d3c4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80761f6000,ffff800020e1d4b8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcc38,6,ffff800020e1d4b8,0,ffff800020e1d5a0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcc38,ffff800020e1d550,ffff800020e1d5a0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d620) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d620) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdcfb0, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d3a0 rbx 0xfffffd80664bfb00 rdx 0x5f492 acpi_pdirpa+0x4b2fa rcx 0 rax 0 r8 0xffffffff811fafd1 soreceive+0x5c1 r9 0x3 r10 0xc6caa0d3d9b16ee8 r11 0xa80cb4acd4b89909 r12 0x184 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f689190 rip 0xffffffff811fbb10 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d2b0 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=11541 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc758,0xffff800020ddceb8 process=0xffff800020df07c0 user=0xffff800020e18000, 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 93152 76990 96217 0 7 0 syz-executor.1 93152 382633 96217 0 3 0x4000080 fsleep syz-executor.1 5086 33947 0 0 3 0x14200 acct acct 76741 316440 0 0 3 0x14200 bored sosplice 96217 347959 94939 0 2 0x482 syz-executor.1 71190 399964 94939 0 3 0x82 piperd syz-executor.0 94939 292355 54554 0 3 0x82 thrsleep syz-fuzzer 94939 485621 54554 0 2 0x4000482 syz-fuzzer 94939 215127 54554 0 3 0x4000082 thrsleep syz-fuzzer 94939 81864 54554 0 3 0x4000082 thrsleep syz-fuzzer 94939 136413 54554 0 3 0x4000082 thrsleep syz-fuzzer 94939 270662 54554 0 3 0x4000082 kqread syz-fuzzer 94939 57235 54554 0 3 0x4000082 thrsleep syz-fuzzer 94939 196013 54554 0 3 0x4000082 thrsleep syz-fuzzer 94939 11938 54554 0 2 0x4000002 syz-fuzzer 94939 44594 54554 0 3 0x4000082 thrsleep syz-fuzzer 54554 91278 64994 0 3 0x10008a pause ksh 64994 156443 9525 0 3 0x92 select sshd 33277 444665 1 0 3 0x100083 ttyin getty 9525 262620 1 0 3 0x80 select sshd 94885 425973 67055 74 3 0x100092 bpf pflogd 67055 148310 1 0 3 0x80 netio pflogd 10058 55775 55272 73 3 0x100090 kqread syslogd 55272 312306 1 0 3 0x100082 netio syslogd 22085 509252 1 77 3 0x100090 poll dhclient *47918 11541 1 0 7 0 dhclient 46820 260311 0 0 3 0x14200 bored smr 8216 325176 0 0 2 0x14200 zerothread 12118 231636 0 0 3 0x14200 aiodoned aiodoned 86696 399096 0 0 3 0x14200 syncer update 58999 480071 0 0 3 0x14200 cleaner cleaner 31323 67614 0 0 3 0x14200 reaper reaper 69684 91791 0 0 3 0x14200 pgdaemon pagedaemon 30995 346079 0 0 3 0x14200 bored crynlk 80613 245112 0 0 3 0x14200 bored crypto 25850 132441 0 0 3 0x40014200 acpi0 acpi0 94359 110667 0 0 3 0x40014200 idle1 36965 399041 0 0 3 0x14200 bored softnet 93181 156399 0 0 3 0x14200 bored systqmp 31629 62133 0 0 3 0x14200 bored systq 86333 270761 0 0 2 0x40014200 softclock 47246 270357 0 0 3 0x40014200 idle0 1 470683 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 47918 (dhclient) thread 0xffff800020ddcc38 (11541) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82902548) #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9532 6438K 7338K 78643K 15159 0 pcb 13 8K 8K 78643K 797 0 rtable 109 6K 6K 78643K 356 0 ifaddr 78 15K 16K 78643K 151 0 counters 43 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 1534 0 iov 0 0K 12K 78643K 50 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 2468 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 112 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 946 0 sigio 0 0K 0K 78643K 22 0 proc 62 63K 95K 78643K 472 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 30 0 in_multi 48 2K 3K 78643K 104 0 ether_multi 1 0K 0K 78643K 5 0 mrt 0 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 239 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 126 71K 71K 78643K 3520 0 UVM aobj 29 2K 2K 78643K 29 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 486 0 NDP 13 0K 0K 78643K 33 0 temp 140 3874K 3938K 78643K 12279 0 kqueue 3 4K 8K 78643K 14 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 7 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 41 0 39 1 0 1 1 0 8 0 rtentry 112 62 0 23 2 0 2 2 0 8 0 unpcb 120 223 0 213 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpcb 544 96 0 92 1 0 1 1 0 8 0 inpcb 296 1058 0 1048 4 2 2 2 0 8 1 rttmr 72 2 0 2 1 0 1 1 0 8 1 nd6 48 15 0 10 1 0 1 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 5 0 1 1 0 1 1 0 8 0 pfstitem 24 23 0 15 1 0 1 1 0 8 0 pfstkey 112 23 0 15 1 0 1 1 0 8 0 pfstate 328 23 0 15 2 0 2 2 0 8 0 pfrule 1360 28 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 229 0 46 13 0 13 13 0 8 0 art_table 32 230 0 46 2 0 2 2 0 8 0 art_node 16 59 0 23 1 0 1 1 0 8 0 sysvmsgpl 40 72 0 43 1 0 1 1 0 8 0 semapl 112 109 0 99 1 0 1 1 0 8 0 shmpl 112 27 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2478 0 1073 89 0 89 89 0 8 0 ffsino 272 2478 0 1073 94 0 94 94 0 8 0 nchpl 144 3812 0 2202 60 0 60 60 0 8 0 uvmvnodes 72 3714 0 0 68 0 68 68 0 8 0 vnodes 208 3714 0 0 196 0 196 196 0 8 0 namei 1024 11758 0 11758 2 1 1 1 0 8 1 percpumem 16 43 0 11 1 0 1 1 0 8 0 vcpupl 1984 5 0 0 1 0 1 1 0 8 0 vmpool 560 7 0 2 2 1 1 1 0 8 0 pfiaddrpl 120 3 0 0 1 0 1 1 0 8 0 scxspl 192 11546 0 11546 10 7 3 7 0 8 3 plimitpl 152 25 0 17 1 0 1 1 0 8 0 sigapl 424 1163 0 1130 4 0 4 4 0 8 0 futexpl 56 12907 0 12906 2 1 1 1 0 8 0 knotepl 112 71 0 52 1 0 1 1 0 8 0 kqueuepl 144 58 0 54 1 0 1 1 0 8 0 pipepl 304 140 0 130 3 2 1 2 0 8 0 fdescpl 496 1146 0 1130 3 0 3 3 0 8 0 filepl 152 6526 0 6423 7 2 5 7 0 8 1 lockfpl 104 133 0 132 1 0 1 1 0 8 0 lockfspl 48 52 0 51 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 96 382 0 373 1 0 1 1 0 8 0 zombiepl 144 1130 0 1130 1 0 1 1 0 8 1 processpl 984 1163 0 1130 5 0 5 5 0 8 0 procpl 624 2762 0 2719 4 0 4 4 0 8 0 sosppl 128 1 0 1 1 1 0 1 0 8 0 sockpl 400 1326 0 1306 6 2 4 4 0 8 2 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 183 0 0 18 0 18 18 0 8 0 mtagpl 96 255 0 0 7 0 7 7 0 8 0 mbufpl 256 677 0 0 41 0 41 41 0 8 0 bufpl 280 5702 0 132 398 0 398 398 0 8 0 anonpl 16 99587 0 84217 84 16 68 76 0 124 6 amapchunkpl 152 5321 0 5185 13 2 11 11 0 158 5 amappl16 192 5183 0 4350 59 13 46 53 0 8 4 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 23 0 19 1 0 1 1 0 8 0 amappl13 168 214 0 210 1 0 1 1 0 8 0 amappl12 160 735 0 732 2 1 1 1 0 8 0 amappl11 152 65 0 49 1 0 1 1 0 8 0 amappl10 144 27 0 21 1 0 1 1 0 8 0 amappl9 136 382 0 380 1 0 1 1 0 8 0 amappl8 128 343 0 311 2 0 2 2 0 8 0 amappl7 120 116 0 104 1 0 1 1 0 8 0 amappl6 112 23 0 18 1 0 1 1 0 8 0 amappl5 104 1781 0 1764 1 0 1 1 0 8 0 amappl4 96 674 0 645 1 0 1 1 0 8 0 amappl3 88 121 0 115 1 0 1 1 0 8 0 amappl2 80 8189 0 8120 2 0 2 2 0 8 0 amappl1 72 31723 0 31288 23 13 10 18 0 8 0 amappl 80 2997 0 2950 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 28 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1153 0 1132 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1153 0 1132 1 0 1 1 0 8 0 vmmpekpl 168 11216 0 11182 2 0 2 2 0 8 0 vmmpepl 168 139559 0 137577 117 27 90 111 0 357 0 vmsppl 368 1152 0 1132 2 0 2 2 0 8 0 pdppl 4096 2313 0 2269 6 0 6 6 0 8 0 pvpl 32 307948 0 289369 200 33 167 182 0 265 17 pmappl 232 1152 0 1132 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 288 0 6 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f689190,0,ffff800020e1d4b8,0,0,ffff800020e1d3c4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f689190,0,ffff800020e1d4b8,0,0,ffff800020e1d3c4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80761f6000,ffff800020e1d4b8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcc38,6,ffff800020e1d4b8,0,ffff800020e1d5a0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcc38,ffff800020e1d550,ffff800020e1d5a0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d620) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d620) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdcfb0, 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(ffffffff82902340) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82902340) at __mp_lock+0x127 sys/kern/kern_lock.c:147 pageflttrap(ffff800023f29eb0,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff800023f29eb0) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffc4c10, count: -7