uvm_fault(0xfffffd806bc09880, 0x0, 0, 2) -> e kernel: page fault trap, code=0 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd806bc09880, 0x0, 0, 2) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff80001d6ca9d0, count: 0 ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da714b8,fffffd805da715b0,fffffd8059538800) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da714b8,9,fffffd8059538800,0,0,ffff80001d718600) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da714b8,0,ffff80001d6cac28,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:549 dofilewritev(ffff80001d718600,4,ffff80001d6cac28,0,ffff80001d6cad10) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d718600,ffff80001d6cacc0,ffff80001d6cad10) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6cad90) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdbc70, count: -8 ddb> show registers rdi 0 rsi 0xfffffd8059538870 rbp 0xffff80001d6ca970 rbx 0x1 rdx 0x90 rcx 0x12 rax 0 r8 0xffffffff813651b4 sbappendstream+0x64 r9 0x5 r10 0xd29374c19090e2db r11 0 r12 0xfffffd8059538800 r13 0xfffffd8059538900 r14 0x1 r15 0xfffffd805da715b0 rip 0xffffffff815b7665 memcpy+0x15 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80001d6ca8f8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (sshd) pid=412872 stat=onproc flags process=12 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d718870,0xffff80001d718130 process=0xffff8000ffff95a8 user=0xffff80001d6c5000, vmspace=0xfffffd806bc09880 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 3359 312703 0 0 3 0x14200 bored sosplice 3016 185832 15378 0 2 0x2 syz-executor.0 85124 134603 15378 0 2 0x2 syz-executor.1 15378 184310 88424 0 3 0x82 thrsleep syz-fuzzer 15378 212108 88424 0 2 0x4000002 syz-fuzzer 15378 4620 88424 0 3 0x4000082 thrsleep syz-fuzzer 15378 201987 88424 0 3 0x4000082 thrsleep syz-fuzzer 15378 165901 88424 0 3 0x4000082 thrsleep syz-fuzzer 15378 205872 88424 0 2 0x4000002 syz-fuzzer 15378 172089 88424 0 3 0x4000082 thrsleep syz-fuzzer 88424 49971 86739 0 3 0x10008a pause ksh *86739 412872 99184 0 7 0x12 sshd 96911 39757 1 0 3 0x100083 ttyin getty 99184 430054 1 0 3 0x80 select sshd 76759 499157 30419 73 3 0x100090 kqread syslogd 30419 209638 1 0 3 0x100082 netio syslogd 74789 415876 1 77 3 0x100090 poll dhclient 67363 475201 1 0 3 0x80 poll dhclient 81186 160745 0 0 3 0x14200 bored smr 49846 84421 0 0 3 0x14200 pgzero zerothread 26293 161156 0 0 3 0x14200 aiodoned aiodoned 92282 422636 0 0 3 0x14200 syncer update 27720 128821 0 0 3 0x14200 cleaner cleaner 72000 279433 0 0 3 0x14200 reaper reaper 74133 156283 0 0 3 0x14200 pgdaemon pagedaemon 18209 478867 0 0 3 0x14200 bored crynlk 85381 119185 0 0 3 0x14200 bored crypto 15628 173003 0 0 3 0x40014200 acpi0 acpi0 90191 161842 0 0 3 0x14200 bored softnet 98078 470535 0 0 3 0x14200 bored systqmp 85476 299449 0 0 3 0x14200 bored systq 37449 447599 0 0 3 0x40014200 bored softclock 24919 72093 0 0 3 0x40014200 idle0 1 356111 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9483 6336K 6724K 78643K 10678 0 pcb 13 8K 8K 78643K 33 0 rtable 106 3K 6K 78643K 234 0 ifaddr 57 12K 12K 78643K 68 0 counters 21 16K 16K 78643K 21 0 ioctlops 0 0K 4K 78643K 25 0 iov 0 0K 12K 78643K 15 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1271 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 16 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 4 9K 25K 78643K 84 0 sigio 0 0K 0K 78643K 4 0 proc 47 38K 54K 78643K 358 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 12 0 in_multi 33 2K 2K 78643K 42 0 ether_multi 1 0K 0K 78643K 4 0 mrt 0 0K 0K 78643K 3 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 183 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 112 22K 38K 78643K 1033 0 UVM aobj 4 2K 2K 78643K 4 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 9 0K 0K 78643K 13 0 temp 78 3842K 3906K 78643K 2227 0 kqueue 3 4K 8K 78643K 6 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 0 1 0 1 1 0 8 0 rtpcb 80 23 0 21 1 0 1 1 0 8 0 rtentry 112 46 0 2 2 0 2 2 0 8 0 unpcb 120 33 0 25 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 641 0 641 1 0 1 1 0 8 1 tcpcb 544 86 0 82 1 0 1 1 0 8 0 inpcb 280 162 0 155 2 0 2 2 0 8 1 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 6 0 0 1 0 1 1 0 8 0 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 16 0 16 1 0 1 1 0 8 1 pftag 88 4 0 4 1 0 1 1 0 8 1 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 112 2 0 0 1 0 1 1 0 8 0 pfstate 328 1 0 0 1 0 1 1 0 8 0 pfrule 1360 3 0 2 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 189 0 0 12 0 12 12 0 8 0 art_table 32 190 0 0 2 0 2 2 0 8 0 art_node 16 45 0 5 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 12 0 2 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1504 0 106 88 0 88 88 0 8 0 ffsino 240 1504 0 106 83 0 83 83 0 8 0 nchpl 144 1791 0 190 60 0 60 60 0 8 0 uvmvnodes 72 1570 0 0 29 0 29 29 0 8 0 vnodes 208 1570 0 0 83 0 83 83 0 8 0 namei 1024 4510 0 4510 2 1 1 1 0 8 1 pfiaddrpl 120 4 0 4 1 0 1 1 0 8 1 scxspl 192 5097 0 5097 1 0 1 1 0 8 1 plimitpl 152 16 0 9 1 0 1 1 0 8 0 sigapl 424 271 0 243 4 0 4 4 0 8 0 futexpl 56 1302 0 1302 1 0 1 1 0 8 1 knotepl 112 64 0 45 1 0 1 1 0 8 0 kqueuepl 144 10 0 8 1 0 1 1 0 8 0 pipelkpl 16 76 0 66 1 0 1 1 0 8 0 pipepl 120 152 0 133 1 0 1 1 0 8 0 fdescpl 432 256 0 243 2 0 2 2 0 8 0 filepl 120 1452 0 1357 4 0 4 4 0 8 1 lockfpl 104 23 0 22 1 0 1 1 0 8 0 lockfspl 48 10 0 9 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 180 0 173 1 0 1 1 0 8 0 zombiepl 144 243 0 243 2 1 1 1 0 8 1 processpl 920 271 0 243 4 0 4 4 0 8 0 procpl 624 339 0 305 4 0 4 4 0 8 1 sockpl 400 218 0 201 3 0 3 3 0 8 1 mcl64k 65536 8 0 8 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 2 0 2 1 0 1 1 0 8 1 mcl4k 4096 23 0 23 2 1 1 1 0 8 1 mcl2k 2048 73248 0 73190 22 6 16 18 0 8 8 mtagpl 80 10 0 2 2 1 1 1 0 8 0 mbufpl 256 116625 0 116538 13 2 11 12 0 8 4 bufpl 280 3331 0 126 229 0 229 229 0 8 0 anonpl 16 39582 0 24198 64 1 63 63 0 107 0 amapchunkpl 152 1482 0 1356 19 0 19 19 0 158 13 amappl16 192 1152 0 305 43 0 43 43 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 51 0 44 1 0 1 1 0 8 0 amappl13 168 51 0 47 1 0 1 1 0 8 0 amappl12 160 9 0 7 1 0 1 1 0 8 0 amappl11 152 46 0 37 1 0 1 1 0 8 0 amappl10 144 23 0 18 1 0 1 1 0 8 0 amappl9 136 376 0 374 1 0 1 1 0 8 0 amappl8 128 305 0 273 2 0 2 2 0 8 0 amappl7 120 107 0 95 1 0 1 1 0 8 0 amappl6 112 22 0 19 1 0 1 1 0 8 0 amappl5 104 199 0 189 1 0 1 1 0 8 0 amappl4 96 445 0 419 1 0 1 1 0 8 0 amappl3 88 127 0 121 1 0 1 1 0 8 0 amappl2 80 1210 0 1154 2 0 2 2 0 8 0 amappl1 72 14419 0 14022 22 11 11 17 0 8 2 amappl 80 569 0 530 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 256 0 243 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 256 0 243 1 0 1 1 0 8 0 vmmpekpl 168 5925 0 5897 2 0 2 2 0 8 0 vmmpepl 168 38013 0 36206 111 6 105 105 0 357 22 vmsppl 272 255 0 243 2 0 2 2 0 8 1 pdppl 4096 518 0 486 6 0 6 6 0 8 1 pvpl 32 134491 0 116212 152 0 152 152 0 265 3 pmappl 200 255 0 243 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 248 0 12 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da714b8,fffffd805da715b0,fffffd8059538800) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da714b8,9,fffffd8059538800,0,0,ffff80001d718600) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da714b8,0,ffff80001d6cac28,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:549 dofilewritev(ffff80001d718600,4,ffff80001d6cac28,0,ffff80001d6cad10) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d718600,ffff80001d6cacc0,ffff80001d6cad10) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6cad90) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdbc70, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da714b8,fffffd805da715b0,fffffd8059538800) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da714b8,9,fffffd8059538800,0,0,ffff80001d718600) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da714b8,0,ffff80001d6cac28,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:549 dofilewritev(ffff80001d718600,4,ffff80001d6cac28,0,ffff80001d6cad10) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d718600,ffff80001d6cacc0,ffff80001d6cad10) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6cad90) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdbc70, count: -8