uvm_fault(0xfffffd806e7a2178, 0x0, 0, 2) -> e kernel: page fault trap, code=0 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd806e7a2178, 0x0, 0, 2) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff800020ac0e00, count: 0 ddb{0}> trace memcpy() at memcpy+0x15 sbappendstream(fffffd806e960908,fffffd806e9609f8,fffffd8063b74000) at sbappendstream+0x123 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd806e960908,9,fffffd8063b74000,0,0,ffff800020aa78c0) at tcp_usrreq+0x227 sys/netinet/tcp_usrreq.c:323 sosend(fffffd806e960908,0,ffff800020ac1068,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:524 dofilewritev(ffff800020aa78c0,4,ffff800020ac1068,0,ffff800020ac1150) at dofilewritev+0x1b7 sys/kern/sys_generic.c:364 sys_write(ffff800020aa78c0,ffff800020ac1100,ffff800020ac1150) at sys_write+0x83 sys/kern/sys_generic.c:284 syscall(ffff800020ac11d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800020ac11d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb99b0, count: -8 ddb{0}> show registers rdi 0 rsi 0xfffffd8068ffd800 rbp 0xffff800020ac0da0 rbx 0x1 rdx 0x19c rcx 0x33 rax 0xffffffff8143d4be sbcompress+0x1ae r8 0xffffffff8143d794 sbappendstream+0x64 r9 0x5 r10 0x9c041e1a7d83917c r11 0 r12 0xfffffd8063b74000 r13 0xfffffd8063b74100 r14 0x1 r15 0xfffffd806e9609f8 rip 0xffffffff817a7d95 memcpy+0x15 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff800020ac0d28 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (sshd) pid=248813 stat=onproc flags process=12 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020aa6288,0xffff800020aa7b48 process=0xffff800020aa3548 user=0xffff800020abc000, vmspace=0xfffffd806e7a2178 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 12038 171360 26490 0 2 0 syz-executor.1 77346 458277 18175 0 7 0x2 syz-executor.0 97563 68353 0 0 3 0x14200 bored sosplice 26490 454199 18175 0 3 0x82 nanosleep syz-executor.1 18175 383867 1084 0 3 0x82 thrsleep syz-fuzzer 18175 329633 1084 0 3 0x4000082 nanosleep syz-fuzzer 18175 193762 1084 0 3 0x4000082 thrsleep syz-fuzzer 18175 100612 1084 0 3 0x4000082 thrsleep syz-fuzzer 18175 151304 1084 0 2 0x4000002 syz-fuzzer 18175 110378 1084 0 3 0x4000082 thrsleep syz-fuzzer 18175 58047 1084 0 3 0x4000082 thrsleep syz-fuzzer 18175 52748 1084 0 3 0x4000082 thrsleep syz-fuzzer 18175 267975 1084 0 3 0x4000082 thrsleep syz-fuzzer 18175 110856 1084 0 3 0x4000082 thrsleep syz-fuzzer 1084 128300 15814 0 3 0x10008a pause ksh *15814 248813 83078 0 7 0x12 sshd 17692 276079 1 0 3 0x100083 ttyopn getty 83078 370656 1 0 3 0x80 select sshd 73887 129997 24126 74 3 0x100092 bpf pflogd 24126 239849 1 0 3 0x80 netio pflogd 28421 447322 31444 73 3 0x100090 kqread syslogd 31444 310078 1 0 3 0x100082 netio syslogd 51235 165006 1 77 3 0x100090 poll dhclient 56723 512377 1 0 3 0x80 poll dhclient 81096 189317 0 0 2 0x14200 zerothread 73556 215076 0 0 3 0x14200 aiodoned aiodoned 45224 372618 0 0 3 0x14200 syncer update 35960 355525 0 0 3 0x14200 cleaner cleaner 59467 134278 0 0 3 0x14200 reaper reaper 96392 230024 0 0 3 0x14200 pgdaemon pagedaemon 26497 498380 0 0 3 0x14200 bored crynlk 53744 179069 0 0 3 0x14200 bored crypto 42895 467769 0 0 3 0x14200 bored viomb 93364 377239 0 0 3 0x40014200 acpi0 acpi0 41 392327 0 0 3 0x40014200 idle1 10908 367551 0 0 3 0x14200 bored softnet 77469 427937 0 0 3 0x14200 bored systqmp 8298 265427 0 0 3 0x14200 bored systq 91964 343489 0 0 3 0x40014200 bored softclock 74055 41193 0 0 3 0x40014200 idle0 79458 421348 0 0 3 0x14200 bored smr 1 199699 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 15814 (sshd) thread 0xffff800020aa78c0 (248813) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8265cfc8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 pageflttrap+0x6f sys/arch/amd64/amd64/trap.c:162 #2 kerntrap+0xec sys/arch/amd64/amd64/trap.c:287 #3 alltraps_kern_meltdown+0x7b #4 memcpy+0x15 #5 sbappendstream+0x123 sys/kern/uipc_socket2.c:665 #6 tcp_usrreq+0x227 sys/netinet/tcp_usrreq.c:323 #7 sosend+0x671 sys/kern/uipc_socket.c:524 #8 dofilewritev+0x1b7 sys/kern/sys_generic.c:364 #9 sys_write+0x83 sys/kern/sys_generic.c:284 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #11 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff82478d78) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sosend+0x559 sys/kern/uipc_socket.c:512 #3 dofilewritev+0x1b7 sys/kern/sys_generic.c:364 #4 sys_write+0x83 sys/kern/sys_generic.c:284 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9578 6639K 6964K 78643K 11954 0 pcb 13 8K 8K 78643K 125 0 rtable 115 12K 12K 78643K 395 0 ifaddr 90 16K 16K 78643K 143 0 counters 39 33K 33K 78643K 39 0 ioctlops 0 0K 4K 78643K 1480 0 iov 0 0K 16K 78643K 78 0 mount 1 1K 1K 78643K 1 0 vnodes 1232 77K 78K 78643K 1903 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 14 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 188 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1810 197K 290K 78643K 12817 0 file desc 5 13K 25K 78643K 405 0 sigio 0 0K 0K 78643K 24 0 proc 60 63K 103K 78643K 571 0 subproc 32 2K 2K 78643K 68 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 56 0 in_multi 66 3K 3K 78643K 107 0 ether_multi 1 0K 0K 78643K 2 0 mrt 0 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 84 371K 371K 78643K 84 0 exec 0 0K 1K 78643K 259 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 116 22K 27K 78643K 2373 0 UVM aobj 35 4K 4K 78643K 35 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 82 0 NDP 16 0K 0K 78643K 32 0 temp 152 3031K 3103K 78643K 19701 0 kqueue 0 0K 0K 78643K 4 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 15 0 7 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 37 0 35 1 0 1 1 0 8 0 rtentry 112 84 0 38 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 36 0 36 2 2 0 1 0 8 0 tcpcb 544 158 0 154 1 0 1 1 0 8 0 inpcb 280 750 0 742 3 1 2 2 0 8 1 rttmr 72 2 0 2 1 0 1 1 0 8 1 nd6 48 9 0 6 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 ppxss 1128 2 0 2 1 1 0 1 0 8 0 pffrag 232 13 0 13 2 1 1 1 0 482 1 pffrnode 88 13 0 13 2 1 1 1 0 8 1 pffrent 40 329 0 329 2 1 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 58 0 7 1 0 1 1 0 8 0 pfstkey 112 58 0 7 2 0 2 2 0 8 0 pfstate 328 58 0 7 5 0 5 5 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 256 363 0 138 15 0 15 15 0 8 0 art_table 32 364 0 138 2 0 2 2 0 8 0 art_node 16 83 0 40 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 2 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 186 0 176 1 0 1 1 0 8 0 shmpl 112 33 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2028 0 627 46 0 46 46 0 8 0 ffsino 272 2028 0 627 95 0 95 95 0 8 0 nchpl 144 2869 0 2412 61 34 27 61 0 8 7 uvmvnodes 72 2672 0 0 49 0 49 49 0 8 0 vnodes 208 2672 0 0 141 0 141 141 0 8 0 namei 1024 8988 0 8988 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 8120 0 8120 8 7 1 7 0 8 1 plimitpl 152 56 0 48 1 0 1 1 0 8 0 sigapl 432 598 0 583 3 1 2 3 0 8 0 futexpl 56 10434 0 10434 1 0 1 1 0 8 1 knotepl 112 132 0 113 1 0 1 1 0 8 0 kqueuepl 104 136 0 134 1 0 1 1 0 8 0 pipepl 160 540 0 521 3 1 2 2 0 8 1 fdescpl 488 599 0 583 3 0 3 3 0 8 0 filepl 152 5156 0 5055 8 2 6 7 0 8 2 lockfpl 104 180 0 179 1 0 1 1 0 8 0 lockfspl 48 63 0 62 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 46 0 35 1 0 1 1 0 8 0 ucredpl 96 470 0 461 1 0 1 1 0 8 0 zombiepl 144 583 0 583 1 0 1 1 0 8 1 processpl 904 616 0 583 4 0 4 4 0 8 0 procpl 632 1474 0 1432 5 0 5 5 0 8 1 srpgc 64 4 0 4 2 2 0 1 0 8 0 sosppl 128 47 0 47 1 0 1 1 0 8 1 sockpl 384 1067 0 1048 6 1 5 5 0 8 3 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 12 0 0 2 0 2 2 0 8 0 mcl4k 4096 13 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 294 0 0 36 0 36 36 0 8 0 mtagpl 80 31 0 0 1 0 1 1 0 8 0 mbufpl 256 433 0 0 25 0 25 25 0 8 0 bufpl 280 7125 0 1340 414 0 414 414 0 8 0 anonpl 16 80620 0 61176 97 6 91 95 0 125 11 amapchunkpl 152 3563 0 3412 11 1 10 11 0 158 3 amappl16 192 2967 0 1909 68 10 58 66 0 8 4 amappl15 184 122 0 118 1 0 1 1 0 8 0 amappl14 176 324 0 321 1 0 1 1 0 8 0 amappl13 168 2 0 2 1 1 0 1 0 8 0 amappl12 160 9 0 6 2 1 1 1 0 8 0 amappl11 152 63 0 48 1 0 1 1 0 8 0 amappl10 144 15 0 10 1 0 1 1 0 8 0 amappl9 136 629 0 626 1 0 1 1 0 8 0 amappl8 128 157 0 127 2 0 2 2 0 8 0 amappl7 120 128 0 113 1 0 1 1 0 8 0 amappl6 112 56 0 50 1 0 1 1 0 8 0 amappl5 104 154 0 139 1 0 1 1 0 8 0 amappl4 96 859 0 826 1 0 1 1 0 8 0 amappl3 88 186 0 178 1 0 1 1 0 8 0 amappl2 80 3838 0 3770 3 1 2 3 0 8 0 amappl1 72 23736 0 23289 27 17 10 21 0 8 0 amappl 80 1771 0 1726 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 34 0 0 1 0 1 1 0 8 0 uaddrrnd 24 599 0 583 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 599 0 583 1 0 1 1 0 8 0 vmmpekpl 168 8962 0 8931 2 0 2 2 0 8 0 vmmpepl 168 82277 0 80058 167 28 139 141 0 357 37 vmsppl 368 598 0 583 2 0 2 2 0 8 0 pdppl 4096 1205 0 1166 6 0 6 6 0 8 0 pvpl 32 246703 0 224078 227 6 221 225 0 265 34 pmappl 232 598 0 583 2 1 1 2 0 8 0 extentpl 40 50 0 32 1 0 1 1 0 8 0 phpool 112 201 0 3 6 0 6 6 0 8 0