?          ./file0./file0./file0./file0./file0./file1./file0./file./file./file./file./file0uvm_fault(0xfffffd806bc09220, 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(0xfffffd806bc09220, 0x0, 0, 2) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff80001d6c9e00, count: 0 ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da6e648,fffffd805da6e740,fffffd805e5f1a00) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da6e648,9,fffffd805e5f1a00,0,0,ffff80001d718600) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da6e648,0,ffff80001d6ca058,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:549 dofilewritev(ffff80001d718600,4,ffff80001d6ca058,0,ffff80001d6ca140) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d718600,ffff80001d6ca0f0,ffff80001d6ca140) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6ca1c0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce1a0, count: -8 ddb> show registers rdi 0 rsi 0xfffffd805e5f1a70 rbp 0xffff80001d6c9da0 rbx 0x1 rdx 0x90 rcx 0x12 rax 0 r8 0xffffffff814b7524 sbappendstream+0x64 r9 0x5 r10 0xc64b89157eb655e7 r11 0 r12 0xfffffd805e5f1a00 r13 0xfffffd805e5f1b00 r14 0x1 r15 0xfffffd805da6e740 rip 0xffffffff8155b095 memcpy+0x15 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80001d6c9d28 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (sshd) pid=308080 stat=onproc flags process=12 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d718870,0xffff80001d7183a0 process=0xffff8000ffff95a8 user=0xffff80001d6c5000, vmspace=0xfffffd806bc09220 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 38051 45855 73153 0 2 0 syz-executor.1 38051 328242 73153 0 2 0x4000000 syz-executor.1 76239 274699 0 0 3 0x14200 acct acct 38619 11565 0 0 3 0x14200 bored sosplice 64068 73316 90288 0 2 0x2 syz-executor.0 73153 92237 90288 0 3 0x82 nanosleep syz-executor.1 90288 518732 94046 0 3 0x82 thrsleep syz-fuzzer 90288 353056 94046 0 2 0x4000002 syz-fuzzer 90288 204735 94046 0 3 0x4000082 thrsleep syz-fuzzer 90288 369972 94046 0 3 0x4000082 thrsleep syz-fuzzer 90288 483359 94046 0 2 0x4000002 syz-fuzzer 90288 276186 94046 0 3 0x4000082 thrsleep syz-fuzzer 90288 27205 94046 0 3 0x4000082 thrsleep syz-fuzzer 94046 290545 75467 0 3 0x10008a pause ksh *75467 308080 66444 0 7 0x12 sshd 2986 319393 1 0 3 0x100083 ttyin getty 66444 17037 1 0 3 0x80 select sshd 45302 491505 3282 73 3 0x100090 kqread syslogd 3282 70077 1 0 3 0x100082 netio syslogd 94651 216653 1 77 3 0x100090 poll dhclient 82929 190098 1 0 3 0x80 poll dhclient 89542 243486 0 0 3 0x14200 bored smr 37358 285638 0 0 2 0x14200 zerothread 62973 375145 0 0 3 0x14200 aiodoned aiodoned 68945 222786 0 0 3 0x14200 syncer update 98482 310040 0 0 3 0x14200 cleaner cleaner 75895 5166 0 0 3 0x14200 reaper reaper 30795 385272 0 0 3 0x14200 pgdaemon pagedaemon 68810 220562 0 0 3 0x14200 bored crynlk 45638 120583 0 0 3 0x14200 bored crypto 83771 472517 0 0 3 0x40014200 acpi0 acpi0 147 341608 0 0 3 0x14200 bored softnet 14495 72112 0 0 3 0x14200 bored systqmp 66119 248888 0 0 3 0x14200 bored systq 75485 273833 0 0 3 0x40014200 bored softclock 97628 97814 0 0 3 0x40014200 idle0 1 9859 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 9479 6335K 6846K 78643K 10636 0 pcb 13 8K 8K 78643K 19 0 rtable 105 3K 3K 78643K 197 0 ifaddr 56 11K 12K 78643K 61 0 counters 21 16K 16K 78643K 21 0 ioctlops 0 0K 2K 78643K 17 0 iov 0 0K 14K 78643K 22 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1241 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 0K 0K 78643K 2 0 sem 8 0K 0K 78643K 10 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 66 0 proc 48 38K 54K 78643K 359 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 3 0 in_multi 33 2K 2K 78643K 36 0 ether_multi 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 31 148K 148K 78643K 31 0 exec 0 0K 1K 78643K 187 0 pfkey data 0 0K 1K 78643K 2 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 127 23K 23K 78643K 1006 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 4 0 NDP 9 0K 0K 78643K 13 0 temp 79 3840K 3904K 78643K 3121 0 kqueue 3 4K 4K 78643K 3 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 21 0 19 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 67 0 59 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 110 0 110 1 0 1 1 0 8 1 tcpcb 544 22 0 18 1 0 1 1 0 8 0 inpcb 280 74 0 67 2 0 2 2 0 8 1 nd6 48 6 0 0 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semapl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1473 0 74 88 0 88 88 0 8 0 ffsino 240 1473 0 74 83 0 83 83 0 8 0 nchpl 144 1739 0 137 60 0 60 60 0 8 0 uvmvnodes 72 1529 0 0 28 0 28 28 0 8 0 vnodes 208 1529 0 0 81 0 81 81 0 8 0 namei 1024 4305 0 4305 1 0 1 1 0 8 1 scxspl 192 5008 0 5008 1 0 1 1 0 8 1 plimitpl 152 14 0 7 1 0 1 1 0 8 0 sigapl 424 254 0 224 4 0 4 4 0 8 0 futexpl 56 891 0 891 1 0 1 1 0 8 1 knotepl 112 61 0 42 1 0 1 1 0 8 0 kqueuepl 144 6 0 4 1 0 1 1 0 8 0 pipelkpl 16 70 0 60 1 0 1 1 0 8 0 pipepl 120 140 0 121 1 0 1 1 0 8 0 fdescpl 432 238 0 224 2 0 2 2 0 8 0 filepl 120 1228 0 1133 4 0 4 4 0 8 1 lockfpl 104 23 0 22 1 0 1 1 0 8 0 lockfspl 48 8 0 7 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 73 0 66 1 0 1 1 0 8 0 zombiepl 144 224 0 224 1 0 1 1 0 8 1 processpl 920 254 0 224 4 0 4 4 0 8 0 procpl 624 310 0 273 4 0 4 4 0 8 0 sockpl 400 164 0 147 3 0 3 3 0 8 1 mcl64k 65536 4 0 4 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 mcl4k 4096 14 0 14 2 1 1 1 0 8 1 mcl2k 2048 76437 0 76391 15 2 13 13 0 8 6 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 121148 0 121079 9 0 9 9 0 8 0 bufpl 280 3382 0 126 233 0 233 233 0 8 0 anonpl 16 39154 0 23615 67 2 65 65 0 107 0 amapchunkpl 152 1150 0 1008 8 0 8 8 0 158 1 amappl16 192 1112 0 239 44 0 44 44 0 8 0 amappl15 184 17 0 15 1 0 1 1 0 8 0 amappl14 176 22 0 18 1 0 1 1 0 8 0 amappl13 168 43 0 38 1 0 1 1 0 8 0 amappl12 160 8 0 6 1 0 1 1 0 8 0 amappl11 152 63 0 53 1 0 1 1 0 8 0 amappl10 144 22 0 16 1 0 1 1 0 8 0 amappl9 136 356 0 354 1 0 1 1 0 8 0 amappl8 128 315 0 279 2 0 2 2 0 8 0 amappl7 120 109 0 96 1 0 1 1 0 8 0 amappl6 112 26 0 20 1 0 1 1 0 8 0 amappl5 104 210 0 199 1 0 1 1 0 8 0 amappl4 96 437 0 409 1 0 1 1 0 8 0 amappl3 88 106 0 98 1 0 1 1 0 8 0 amappl2 80 1099 0 1033 2 0 2 2 0 8 0 amappl1 72 14076 0 13662 22 5 17 17 0 8 7 amappl 80 530 0 488 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 238 0 224 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 238 0 224 1 0 1 1 0 8 0 vmmpekpl 168 5825 0 5799 2 0 2 2 0 8 0 vmmpepl 168 36031 0 34078 112 4 108 108 0 357 22 vmsppl 272 237 0 224 2 0 2 2 0 8 1 pdppl 4096 482 0 448 6 0 6 6 0 8 1 pvpl 32 132055 0 113574 154 0 154 154 0 265 0 pmappl 200 237 0 224 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 233 0 5 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da6e648,fffffd805da6e740,fffffd805e5f1a00) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da6e648,9,fffffd805e5f1a00,0,0,ffff80001d718600) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da6e648,0,ffff80001d6ca058,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:549 dofilewritev(ffff80001d718600,4,ffff80001d6ca058,0,ffff80001d6ca140) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d718600,ffff80001d6ca0f0,ffff80001d6ca140) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6ca1c0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce1a0, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da6e648,fffffd805da6e740,fffffd805e5f1a00) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da6e648,9,fffffd805e5f1a00,0,0,ffff80001d718600) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da6e648,0,ffff80001d6ca058,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:549 dofilewritev(ffff80001d718600,4,ffff80001d6ca058,0,ffff80001d6ca140) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d718600,ffff80001d6ca0f0,ffff80001d6ca140) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6ca1c0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce1a0, count: -8