uvm_fault(0xfffffd806bc0a220, 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(0xfffffd806bc0a220, 0x0, 0, 2) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff80001d6ca070, count: 0 ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da6a198,fffffd805da6a290,fffffd8057143d00) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da6a198,9,fffffd8057143d00,0,0,ffff80001d7179d0) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da6a198,0,ffff80001d6ca2c8,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:555 dofilewritev(ffff80001d7179d0,4,ffff80001d6ca2c8,0,ffff80001d6ca3b0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d7179d0,ffff80001d6ca360,ffff80001d6ca3b0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6ca430) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffece60, count: -8 ddb> show registers rdi 0 rsi 0xfffffd800601a000 rbp 0xffff80001d6ca010 rbx 0x1 rdx 0x18c rcx 0x31 rax 0 r8 0xffffffff821610a4 sbappendstream+0x64 r9 0x5 r10 0xf19e0e2199345796 r11 0 r12 0xfffffd8057143d00 r13 0xfffffd8057143900 r14 0x1 r15 0xfffffd805da6a290 rip 0xffffffff8139e605 memcpy+0x15 cs 0x8 rflags 0x10203 __ALIGN_SIZE+0xf203 rsp 0xffff80001d6c9f98 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (sshd) pid=404256 stat=onproc flags process=12 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d718390,0xffff80001d717500 process=0xffff8000ffff8e78 user=0xffff80001d6c5000, vmspace=0xfffffd806bc0a220 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 6748 112439 0 0 3 0x14200 bored sosplice 57122 238530 10308 0 2 0x2 syz-executor.1 78261 510470 10308 0 2 0x2 syz-executor.0 10308 77031 82932 0 3 0x82 thrsleep syz-fuzzer 10308 66040 82932 0 2 0x4000002 syz-fuzzer 10308 178944 82932 0 3 0x4000082 thrsleep syz-fuzzer 10308 130507 82932 0 3 0x4000082 thrsleep syz-fuzzer 10308 482439 82932 0 3 0x4000082 thrsleep syz-fuzzer 10308 35193 82932 0 2 0x4000002 syz-fuzzer 10308 503958 82932 0 3 0x4000082 thrsleep syz-fuzzer 10308 435934 82932 0 3 0x4000082 thrsleep syz-fuzzer 10308 8986 82932 0 3 0x4000082 thrsleep syz-fuzzer 82932 498870 68735 0 3 0x10008a pause ksh *68735 404256 77166 0 7 0x12 sshd 4178 287808 1 0 3 0x100083 ttyin getty 77166 301610 1 0 3 0x80 select sshd 62444 375670 8636 73 3 0x100090 kqread syslogd 8636 270889 1 0 3 0x100082 netio syslogd 19198 195507 1 77 3 0x100090 poll dhclient 36381 446243 1 0 3 0x80 poll dhclient 92846 68215 0 0 3 0x14200 bored smr 44019 41770 0 0 3 0x14200 pgzero zerothread 96382 201169 0 0 3 0x14200 aiodoned aiodoned 16812 4275 0 0 3 0x14200 syncer update 28990 41554 0 0 3 0x14200 cleaner cleaner 97608 275953 0 0 3 0x14200 reaper reaper 46944 190329 0 0 3 0x14200 pgdaemon pagedaemon 87541 59283 0 0 3 0x14200 bored crynlk 70747 249248 0 0 3 0x14200 bored crypto 53522 489931 0 0 3 0x40014200 acpi0 acpi0 68646 299168 0 0 3 0x14200 bored softnet 78164 197461 0 0 3 0x14200 bored systqmp 2412 506591 0 0 3 0x14200 bored systq 4560 216741 0 0 3 0x40014200 bored softclock 54463 493239 0 0 3 0x40014200 idle0 1 115338 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 9508 6486K 7005K 78643K 11573 0 pcb 13 8K 8K 78643K 95 0 rtable 112 5K 7K 78643K 333 0 ifaddr 75 16K 16K 78643K 141 0 counters 21 16K 16K 78643K 27 0 ioctlops 0 0K 4K 78643K 61 0 iov 0 0K 16K 78643K 39 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1500 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 84 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 4 9K 25K 78643K 314 0 sigio 0 0K 0K 78643K 4 0 proc 51 38K 55K 78643K 382 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 31 0 in_multi 73 3K 3K 78643K 144 0 ether_multi 1 0K 0K 78643K 13 0 mrt 0 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 216 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 131 39K 39K 78643K 1566 0 UVM aobj 15 2K 2K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 78 0 NDP 10 0K 0K 78643K 25 0 temp 89 3843K 3907K 78643K 11573 0 kqueue 3 4K 10K 78643K 18 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 7 0 0 1 0 1 1 0 8 0 rtpcb 80 37 0 35 1 0 1 1 0 8 0 rtentry 112 61 0 19 2 0 2 2 0 8 0 unpcb 120 135 0 127 1 0 1 1 0 8 0 syncache 264 12 0 12 2 1 1 1 0 8 1 tcpqe 32 115 0 115 2 2 0 1 0 8 0 tcpcb 544 182 0 178 1 0 1 1 0 8 0 inpcb 296 428 0 419 2 0 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 16 0 12 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 0 1 1 0 8 1 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 26 0 22 1 0 1 1 0 8 0 pftag 88 4 0 4 1 1 0 1 0 8 0 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 16 0 9 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 215 0 42 13 0 13 13 0 8 0 art_table 32 216 0 42 2 0 2 2 0 8 0 art_node 16 60 0 21 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 80 0 70 1 0 1 1 0 8 0 shmpl 112 14 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1862 0 466 88 0 88 88 0 8 0 ffsino 240 1862 0 466 83 0 83 83 0 8 0 nchpl 144 2537 0 948 60 0 60 60 0 8 0 uvmvnodes 72 2139 0 0 39 0 39 39 0 8 0 vnodes 208 2139 0 0 113 0 113 113 0 8 0 namei 1024 6804 0 6804 1 0 1 1 0 8 1 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 528 2 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 10 0 6 1 0 1 1 0 8 0 scxspl 192 7808 0 7808 1 0 1 1 0 8 1 plimitpl 152 31 0 24 1 0 1 1 0 8 0 sigapl 424 501 0 473 4 0 4 4 0 8 0 futexpl 56 6859 0 6859 1 0 1 1 0 8 1 knotepl 112 83 0 64 1 0 1 1 0 8 0 kqueuepl 144 44 0 40 1 0 1 1 0 8 0 pipelkpl 16 119 0 109 1 0 1 1 0 8 0 pipepl 120 238 0 219 1 0 1 1 0 8 0 fdescpl 432 486 0 473 2 0 2 2 0 8 0 filepl 120 3016 0 2921 4 0 4 4 0 8 1 lockfpl 104 63 0 62 1 0 1 1 0 8 0 lockfspl 48 23 0 22 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 241 0 234 1 0 1 1 0 8 0 zombiepl 144 473 0 473 1 0 1 1 0 8 1 processpl 920 501 0 473 4 0 4 4 0 8 0 procpl 624 858 0 822 4 0 4 4 0 8 1 sosppl 128 5 0 5 2 1 1 1 0 8 1 sockpl 400 605 0 588 5 1 4 4 0 8 2 mcl64k 65536 29 0 29 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 9 0 9 1 0 1 1 0 8 1 mcl9k 9216 5 0 5 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 54 0 54 2 1 1 1 0 8 1 mcl2k2 2112 2 0 2 1 0 1 1 0 8 1 mcl2k 2048 74183 0 74130 17 10 7 15 0 8 0 mtagpl 96 136 0 14 4 1 3 3 0 8 0 mbufpl 256 352541 0 352138 59 33 26 57 0 8 0 bufpl 280 4137 0 128 287 0 287 287 0 8 0 anonpl 16 65920 0 50418 83 2 81 81 0 107 8 amapchunkpl 152 1956 0 1825 8 1 7 7 0 158 1 amappl16 192 2785 0 1804 62 4 58 62 0 8 8 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 31 0 25 1 0 1 1 0 8 0 amappl13 168 27 0 23 1 0 1 1 0 8 0 amappl12 160 12 0 11 1 0 1 1 0 8 0 amappl11 152 51 0 41 1 0 1 1 0 8 0 amappl10 144 161 0 156 1 0 1 1 0 8 0 amappl9 136 509 0 507 1 0 1 1 0 8 0 amappl8 128 465 0 422 2 0 2 2 0 8 0 amappl7 120 252 0 239 1 0 1 1 0 8 0 amappl6 112 22 0 18 1 0 1 1 0 8 0 amappl5 104 434 0 424 1 0 1 1 0 8 0 amappl4 96 421 0 391 1 0 1 1 0 8 0 amappl3 88 111 0 106 1 0 1 1 0 8 0 amappl2 80 3072 0 3010 2 0 2 2 0 8 0 amappl1 72 17790 0 17392 24 15 9 17 0 8 0 amappl 80 1078 0 1038 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 15 0 1 1 0 1 1 0 8 0 uaddrrnd 24 488 0 474 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 488 0 474 1 0 1 1 0 8 0 vmmpekpl 168 7083 0 7057 2 0 2 2 0 8 0 vmmpepl 168 64369 0 62406 118 11 107 111 0 357 15 vmsppl 272 487 0 474 3 1 2 2 0 8 1 pdppl 4096 982 0 949 6 1 5 6 0 8 0 pvpl 32 195191 0 176772 187 0 187 187 0 265 19 pmappl 200 487 0 474 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 292 0 49 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da6a198,fffffd805da6a290,fffffd8057143d00) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da6a198,9,fffffd8057143d00,0,0,ffff80001d7179d0) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da6a198,0,ffff80001d6ca2c8,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:555 dofilewritev(ffff80001d7179d0,4,ffff80001d6ca2c8,0,ffff80001d6ca3b0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d7179d0,ffff80001d6ca360,ffff80001d6ca3b0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6ca430) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffece60, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da6a198,fffffd805da6a290,fffffd8057143d00) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da6a198,9,fffffd8057143d00,0,0,ffff80001d7179d0) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da6a198,0,ffff80001d6ca2c8,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:555 dofilewritev(ffff80001d7179d0,4,ffff80001d6ca2c8,0,ffff80001d6ca3b0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d7179d0,ffff80001d6ca360,ffff80001d6ca3b0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6ca430) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffece60, count: -8