uvm_fault(0xfffffd806bc09550, 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(0xfffffd806bc09550, 0x0, 0, 2) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff80001d6ca210, count: 0 ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da71328,fffffd805da71420,fffffd806bc21600) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da71328,9,fffffd806bc21600,0,0,ffff80001d717010) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da71328,0,ffff80001d6ca468,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:555 dofilewritev(ffff80001d717010,4,ffff80001d6ca468,0,ffff80001d6ca550) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d717010,ffff80001d6ca500,ffff80001d6ca550) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6ca5d0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb80f0, count: -8 ddb> show registers rdi 0 rsi 0xfffffd8006054800 rbp 0xffff80001d6ca1b0 rbx 0x1 rdx 0x1dc rcx 0x3b rax 0 r8 0xffffffff820e3ff4 sbappendstream+0x64 r9 0x5 r10 0xe96eef25296c2101 r11 0 r12 0xfffffd806bc21600 r13 0xfffffd806bc21700 r14 0x1 r15 0xfffffd805da71420 rip 0xffffffff81628c05 memcpy+0x15 cs 0x8 rflags 0x10203 __ALIGN_SIZE+0xf203 rsp 0xffff80001d6ca138 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (sshd) pid=408461 stat=onproc flags process=12 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d718870,0xffff80001d717500 process=0xffff8000ffff8018 user=0xffff80001d6c5000, vmspace=0xfffffd806bc09550 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 99200 505146 26639 0 3 0x80 nanosleep syz-executor.0 99200 420330 26639 0 3 0x4000080 fifor syz-executor.0 99200 403875 26639 0 3 0x4000080 fifor syz-executor.0 99200 111482 26639 0 3 0x4000080 fsleep syz-executor.0 82955 482456 8873 0 2 0x2 syz-executor.1 26639 499862 8873 0 3 0x82 nanosleep syz-executor.0 8873 7710 16331 0 3 0x82 thrsleep syz-fuzzer 8873 81579 16331 0 2 0x4000002 syz-fuzzer 8873 471902 16331 0 3 0x4000082 thrsleep syz-fuzzer 8873 56340 16331 0 3 0x4000082 thrsleep syz-fuzzer 8873 270553 16331 0 3 0x4000082 thrsleep syz-fuzzer 8873 114529 16331 0 2 0x4000002 syz-fuzzer 8873 472757 16331 0 3 0x4000082 thrsleep syz-fuzzer 8873 493901 16331 0 3 0x4000082 thrsleep syz-fuzzer 16331 329868 10151 0 3 0x10008a pause ksh *10151 408461 79656 0 7 0x12 sshd 78176 336017 1 0 3 0x100083 ttyin getty 79656 375911 1 0 3 0x80 select sshd 84435 137098 71598 73 3 0x100090 kqread syslogd 71598 232166 1 0 3 0x100082 netio syslogd 8687 305973 1 77 3 0x100090 poll dhclient 3071 479570 1 0 3 0x80 poll dhclient 6678 352242 0 0 3 0x14200 bored smr 76280 332660 0 0 3 0x14200 pgzero zerothread 49545 513597 0 0 3 0x14200 aiodoned aiodoned 30589 492125 0 0 3 0x14200 syncer update 8996 165636 0 0 3 0x14200 cleaner cleaner 1549 475740 0 0 3 0x14200 reaper reaper 21938 350377 0 0 3 0x14200 pgdaemon pagedaemon 97619 20378 0 0 3 0x14200 bored crynlk 7506 254599 0 0 3 0x14200 bored crypto 27854 491080 0 0 3 0x40014200 acpi0 acpi0 94467 455406 0 0 3 0x14200 bored softnet 31667 55205 0 0 3 0x14200 bored systqmp 21481 10759 0 0 3 0x14200 bored systq 46658 441289 0 0 3 0x40014200 bored softclock 69748 404942 0 0 3 0x40014200 idle0 1 475323 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 9450 6324K 6840K 78643K 10629 0 pcb 13 8K 8K 78643K 39 0 rtable 98 3K 7K 78643K 297 0 ifaddr 43 11K 12K 78643K 75 0 counters 21 16K 16K 78643K 21 0 ioctlops 0 0K 4K 78643K 25 0 iov 0 0K 12K 78643K 40 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1251 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 0K 78643K 17 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 108 0 sigio 0 0K 0K 78643K 2 0 proc 48 38K 54K 78643K 361 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 7 0 in_multi 47 2K 3K 78643K 73 0 ether_multi 1 0K 0K 78643K 5 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 31 148K 148K 78643K 31 0 exec 0 0K 1K 78643K 188 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 119 22K 23K 78643K 1082 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 16 0 NDP 5 0K 0K 78643K 11 0 temp 67 3859K 3935K 78643K 2197 0 kqueue 3 4K 10K 78643K 10 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 2 1 0 1 1 0 8 0 rtpcb 80 23 0 21 1 0 1 1 0 8 0 rtentry 112 56 0 16 2 0 2 2 0 8 0 unpcb 120 195 0 182 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 121 0 121 1 1 0 1 0 8 0 tcpcb 544 42 0 38 1 0 1 1 0 8 0 ipq 40 2 0 2 1 1 0 1 0 8 0 ipqe 40 4 0 4 1 1 0 1 0 8 0 inpcb 296 144 0 137 3 1 2 2 0 8 1 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 10 0 4 1 0 1 1 0 8 0 pfrktable 1344 40 0 40 2 1 1 1 0 8 1 pftag 88 6 0 6 2 1 1 1 0 8 1 pfrule 1360 6 0 4 2 1 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 200 0 10 13 0 13 13 0 8 0 art_table 32 201 0 10 2 0 2 2 0 8 0 art_node 16 53 0 17 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 11 0 1 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 1540 0 143 88 0 88 88 0 8 0 ffsino 240 1540 0 143 83 0 83 83 0 8 0 nchpl 144 1915 0 309 60 0 60 60 0 8 0 uvmvnodes 72 1603 0 0 30 0 30 30 0 8 0 vnodes 208 1603 0 0 85 0 85 85 0 8 0 namei 1024 4746 0 4746 3 2 1 1 0 8 1 pfiaddrpl 120 12 0 12 2 1 1 1 0 8 1 scxspl 192 5481 0 5481 1 0 1 1 0 8 1 plimitpl 152 18 0 11 1 0 1 1 0 8 0 sigapl 424 294 0 266 4 0 4 4 0 8 0 futexpl 56 1835 0 1834 2 1 1 1 0 8 0 knotepl 112 68 0 49 1 0 1 1 0 8 0 kqueuepl 144 13 0 11 1 0 1 1 0 8 0 pipelkpl 16 85 0 75 1 0 1 1 0 8 0 pipepl 120 170 0 151 1 0 1 1 0 8 0 fdescpl 432 280 0 266 2 0 2 2 0 8 0 filepl 120 1589 0 1491 4 0 4 4 0 8 0 lockfpl 104 33 0 32 1 0 1 1 0 8 0 lockfspl 48 12 0 11 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 76 0 69 1 0 1 1 0 8 0 zombiepl 144 266 0 266 2 1 1 1 0 8 1 processpl 920 294 0 266 4 0 4 4 0 8 0 procpl 624 391 0 353 4 0 4 4 0 8 0 sockpl 400 362 0 340 3 0 3 3 0 8 0 mcl64k 65536 3 0 3 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl12k 12288 4 0 4 2 1 1 1 0 8 1 mcl9k 9216 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 3 0 3 1 1 0 1 0 8 0 mcl4k 4096 15 0 15 3 2 1 1 0 8 1 mcl2k 2048 76481 0 76430 20 13 7 18 0 8 0 mtagpl 96 6 0 2 2 1 1 1 0 8 0 mbufpl 256 121708 0 121570 13 2 11 12 0 8 0 bufpl 280 5578 0 226 383 0 383 383 0 8 0 anonpl 16 46762 0 30498 84 2 82 82 0 107 15 amapchunkpl 152 1257 0 1126 8 2 6 8 0 158 0 amappl16 192 1572 0 675 58 1 57 57 0 8 12 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 63 0 57 1 0 1 1 0 8 0 amappl13 168 26 0 23 1 0 1 1 0 8 0 amappl12 160 18 0 16 1 0 1 1 0 8 0 amappl11 152 84 0 73 1 0 1 1 0 8 0 amappl10 144 15 0 12 1 0 1 1 0 8 0 amappl9 136 378 0 375 1 0 1 1 0 8 0 amappl8 128 313 0 277 2 0 2 2 0 8 0 amappl7 120 107 0 94 1 0 1 1 0 8 0 amappl6 112 61 0 54 1 0 1 1 0 8 0 amappl5 104 226 0 215 1 0 1 1 0 8 0 amappl4 96 417 0 392 1 0 1 1 0 8 0 amappl3 88 140 0 135 1 0 1 1 0 8 0 amappl2 80 1414 0 1349 2 0 2 2 0 8 0 amappl1 72 14546 0 14127 24 15 9 17 0 8 0 amappl 80 610 0 569 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 24 280 0 266 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 280 0 266 1 0 1 1 0 8 0 vmmpekpl 168 6046 0 6020 2 0 2 2 0 8 0 vmmpepl 168 41167 0 39184 116 13 103 109 0 357 16 vmsppl 272 279 0 266 2 1 1 2 0 8 0 pdppl 4096 566 0 532 6 1 5 6 0 8 0 pvpl 32 146692 0 127447 195 2 193 193 0 265 36 pmappl 200 279 0 266 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 250 0 26 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da71328,fffffd805da71420,fffffd806bc21600) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da71328,9,fffffd806bc21600,0,0,ffff80001d717010) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da71328,0,ffff80001d6ca468,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:555 dofilewritev(ffff80001d717010,4,ffff80001d6ca468,0,ffff80001d6ca550) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d717010,ffff80001d6ca500,ffff80001d6ca550) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6ca5d0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb80f0, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da71328,fffffd805da71420,fffffd806bc21600) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da71328,9,fffffd806bc21600,0,0,ffff80001d717010) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da71328,0,ffff80001d6ca468,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:555 dofilewritev(ffff80001d717010,4,ffff80001d6ca468,0,ffff80001d6ca550) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d717010,ffff80001d6ca500,ffff80001d6ca550) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d6ca5d0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb80f0, count: -8