uvm_fault(0xfffffd806bc09aa0, 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(0xfffffd806bc09aa0, 0x0, 0, 2) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff80001d75aa80, count: 0 ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805dac57d8,fffffd805dac58d0,fffffd8069f19300) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805dac57d8,9,fffffd8069f19300,0,0,ffff80001d7a7010) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805dac57d8,0,ffff80001d75acd8,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:549 dofilewritev(ffff80001d7a7010,4,ffff80001d75acd8,0,ffff80001d75adc0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d7a7010,ffff80001d75ad70,ffff80001d75adc0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d75ae40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe0cc0, count: -8 ddb> show registers rdi 0 rsi 0xfffffd8069f19370 rbp 0xffff80001d75aa20 rbx 0x1 rdx 0x90 rcx 0x12 rax 0 r8 0 r9 0x5 r10 0x36c9cadda64cdb62 r11 0 r12 0xfffffd8069f19300 r13 0xfffffd8069f19400 r14 0x1 r15 0xfffffd805dac58d0 rip 0xffffffff81f70e15 memcpy+0x15 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80001d75a9a8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (sshd) pid=135326 stat=onproc flags process=12 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d7a8600,0xffff80001d7a7770 process=0xffff8000ffff8ae0 user=0xffff80001d755000, vmspace=0xfffffd806bc09aa0 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 39372 22103 0 0 3 0x14200 bored sosplice 90181 323163 9234 0 2 0x2 syz-executor.1 1348 127276 9234 0 2 0x2 syz-executor.0 9234 119136 49397 0 3 0x82 thrsleep syz-fuzzer 9234 48785 49397 0 3 0x4000082 nanosleep syz-fuzzer 9234 406942 49397 0 2 0x4000002 syz-fuzzer 9234 412705 49397 0 3 0x4000082 thrsleep syz-fuzzer 9234 492863 49397 0 3 0x4000082 thrsleep syz-fuzzer 9234 463688 49397 0 3 0x4000082 thrsleep syz-fuzzer 9234 420279 49397 0 3 0x4000082 thrsleep syz-fuzzer 9234 511771 49397 0 3 0x4000082 thrsleep syz-fuzzer 49397 301199 3605 0 3 0x10008a pause ksh * 3605 135326 29806 0 7 0x12 sshd 42011 227190 1 0 3 0x100083 ttyin getty 29806 25529 1 0 3 0x80 select sshd 31321 239074 92919 73 3 0x100090 kqread syslogd 92919 23974 1 0 3 0x100082 netio syslogd 63101 391252 1 77 3 0x100090 poll dhclient 30069 45484 1 0 3 0x80 poll dhclient 3339 398722 0 0 3 0x14200 bored smr 73981 119578 0 0 3 0x14200 pgzero zerothread 55856 524268 0 0 3 0x14200 aiodoned aiodoned 89423 334043 0 0 3 0x14200 syncer update 36812 182173 0 0 3 0x14200 cleaner cleaner 45919 167919 0 0 3 0x14200 reaper reaper 36761 395892 0 0 3 0x14200 pgdaemon pagedaemon 61429 328578 0 0 3 0x14200 bored crynlk 7697 479346 0 0 3 0x14200 bored crypto 38512 350039 0 0 3 0x40014200 acpi0 acpi0 38183 474532 0 0 3 0x14200 bored softnet 24676 175762 0 0 3 0x14200 bored systqmp 85938 371600 0 0 3 0x14200 bored systq 61351 485122 0 0 3 0x40014200 bored softclock 26250 371233 0 0 3 0x40014200 idle0 1 79229 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 9487 6338K 6720K 78643K 10899 0 pcb 13 8K 8K 78643K 55 0 rtable 107 3K 3K 78643K 209 0 ifaddr 62 12K 13K 78643K 73 0 counters 21 16K 16K 78643K 21 0 ioctlops 0 0K 2K 78643K 25 0 iov 0 0K 12K 78643K 29 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1351 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 26 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 4 9K 25K 78643K 210 0 proc 48 38K 63K 78643K 388 0 subproc 32 2K 2K 78643K 38 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 8 0 in_multi 40 2K 2K 78643K 49 0 ether_multi 1 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 201 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 117 55K 55K 78643K 1319 0 UVM aobj 15 3K 4K 78643K 18 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 32 0 NDP 10 0K 0K 78643K 14 0 temp 99 3036K 3106K 78643K 3966 0 kqueue 3 4K 9K 78643K 12 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 29 0 27 1 0 1 1 0 8 0 rtentry 112 46 0 1 2 0 2 2 0 8 0 unpcb 120 655 0 647 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 237 0 237 1 1 0 1 0 8 0 tcpcb 544 68 0 64 2 1 1 2 0 8 0 inpcb 280 214 0 207 2 1 1 2 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 194 0 0 13 0 13 13 0 8 0 art_table 32 196 0 0 2 0 2 2 0 8 0 art_node 16 45 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 5 1 0 1 1 0 8 0 semupl 112 3 0 3 2 1 1 1 0 8 1 semapl 112 22 0 12 1 0 1 1 0 8 0 shmpl 112 16 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1672 0 277 88 0 88 88 0 8 0 ffsino 240 1672 0 277 83 0 83 83 0 8 0 nchpl 144 2211 0 612 60 0 60 60 0 8 0 uvmvnodes 72 1806 0 0 33 0 33 33 0 8 0 vnodes 208 1806 0 0 96 0 96 96 0 8 0 namei 1024 5610 0 5609 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 528 5 0 2 1 0 1 1 0 8 0 scxspl 192 5551 0 5551 1 0 1 1 0 8 1 plimitpl 152 40 0 33 1 0 1 1 0 8 0 sigapl 424 397 0 369 4 0 4 4 0 8 0 futexpl 56 3805 0 3805 2 1 1 1 0 8 1 knotepl 112 74 0 55 1 0 1 1 0 8 0 kqueuepl 144 22 0 20 1 0 1 1 0 8 0 pipelkpl 16 104 0 94 1 0 1 1 0 8 0 pipepl 120 208 0 189 1 0 1 1 0 8 0 fdescpl 432 382 0 369 2 0 2 2 0 8 0 filepl 120 2575 0 2480 5 1 4 4 0 8 1 lockfpl 104 36 0 35 1 0 1 1 0 8 0 lockfspl 48 14 0 13 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 96 231 0 223 1 0 1 1 0 8 0 zombiepl 144 369 0 369 1 0 1 1 0 8 1 processpl 920 397 0 369 4 0 4 4 0 8 0 procpl 624 618 0 583 5 1 4 4 0 8 1 sockpl 400 898 0 881 6 2 4 4 0 8 2 mcl64k 65536 20 0 20 1 0 1 1 0 8 1 mcl12k 12288 6 0 6 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 2 0 2 2 2 0 1 0 8 0 mcl4k 4096 21 0 21 3 2 1 1 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 61493 0 61442 23 16 7 20 0 8 0 mtagpl 80 27 0 2 2 1 1 1 0 8 0 mbufpl 256 98096 0 97949 12 2 10 11 0 8 0 bufpl 280 3499 0 126 241 0 241 241 0 8 0 anonpl 16 55762 0 40548 81 8 73 76 0 107 11 amapchunkpl 152 1763 0 1640 9 3 6 9 0 158 1 amappl16 192 2028 0 1200 52 6 46 52 0 8 4 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 120 0 112 1 0 1 1 0 8 0 amappl13 168 119 0 116 1 0 1 1 0 8 0 amappl12 160 12 0 7 1 0 1 1 0 8 0 amappl11 152 44 0 35 1 0 1 1 0 8 0 amappl10 144 104 0 97 1 0 1 1 0 8 0 amappl9 136 346 0 345 1 0 1 1 0 8 0 amappl8 128 316 0 279 2 0 2 2 0 8 0 amappl7 120 193 0 181 1 0 1 1 0 8 0 amappl6 112 26 0 21 1 0 1 1 0 8 0 amappl5 104 284 0 273 1 0 1 1 0 8 0 amappl4 96 506 0 479 1 0 1 1 0 8 0 amappl3 88 195 0 187 1 0 1 1 0 8 0 amappl2 80 2237 0 2181 2 0 2 2 0 8 0 amappl1 72 16205 0 15806 23 14 9 17 0 8 0 amappl 80 847 0 807 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 17 0 3 1 0 1 1 0 8 0 uaddrrnd 24 387 0 371 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 387 0 371 1 0 1 1 0 8 0 vmmpekpl 168 6428 0 6399 2 0 2 2 0 8 0 vmmpepl 168 52346 0 50539 112 22 90 107 0 357 4 vmsppl 272 386 0 371 3 1 2 2 0 8 0 pdppl 4096 780 0 745 6 1 5 6 0 8 0 pvpl 32 168095 0 149987 184 7 177 180 0 265 30 pmappl 200 386 0 371 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 255 0 30 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805dac57d8,fffffd805dac58d0,fffffd8069f19300) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805dac57d8,9,fffffd8069f19300,0,0,ffff80001d7a7010) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805dac57d8,0,ffff80001d75acd8,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:549 dofilewritev(ffff80001d7a7010,4,ffff80001d75acd8,0,ffff80001d75adc0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d7a7010,ffff80001d75ad70,ffff80001d75adc0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d75ae40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe0cc0, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805dac57d8,fffffd805dac58d0,fffffd8069f19300) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805dac57d8,9,fffffd8069f19300,0,0,ffff80001d7a7010) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805dac57d8,0,ffff80001d75acd8,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:549 dofilewritev(ffff80001d7a7010,4,ffff80001d75acd8,0,ffff80001d75adc0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d7a7010,ffff80001d75ad70,ffff80001d75adc0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d75ae40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe0cc0, count: -8