uvm_fault(0xfffffd806bc09770, 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(0xfffffd806bc09770, 0x0, 0, 2) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff80001d723280, count: 0 ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da747d8,fffffd805da748d0,fffffd8059580300) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da747d8,9,fffffd8059580300,0,0,ffff80001d71d120) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da747d8,0,ffff80001d7234d8,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:555 dofilewritev(ffff80001d71d120,4,ffff80001d7234d8,0,ffff80001d7235c0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d71d120,ffff80001d723570,ffff80001d7235c0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d723640) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc2500, count: -8 ddb> show registers rdi 0 rsi 0xfffffd800607f000 rbp 0xffff80001d723220 rbx 0x1 rdx 0x1cc rcx 0x39 rax 0 r8 0xffffffff814d4794 sbappendstream+0x64 r9 0x5 r10 0x1e444ac8d39b0d43 r11 0 r12 0xfffffd8059580300 r13 0xfffffd8059580400 r14 0x1 r15 0xfffffd805da748d0 rip 0xffffffff81b139e5 memcpy+0x15 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80001d7231a8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (sshd) pid=446711 stat=onproc flags process=12 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff80001d71dae0,0xffff80001d71c9e0 process=0xffff80001d701238 user=0xffff80001d71e000, vmspace=0xfffffd806bc09770 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 67202 30884 44543 60928 3 0x90 nanosleep syz-executor.1 67202 485529 44543 60928 3 0x4000090 netio syz-executor.1 67202 230086 44543 60928 3 0x4000090 fsleep syz-executor.1 44543 138373 26157 0 3 0x82 nanosleep syz-executor.1 16827 361805 26157 0 2 0x2 syz-executor.0 26157 162045 32041 0 3 0x82 thrsleep syz-fuzzer 26157 122086 32041 0 2 0x4000002 syz-fuzzer 26157 351276 32041 0 3 0x4000082 thrsleep syz-fuzzer 26157 189168 32041 0 3 0x4000082 thrsleep syz-fuzzer 26157 450014 32041 0 3 0x4000082 thrsleep syz-fuzzer 26157 279778 32041 0 2 0x4000002 syz-fuzzer 26157 198653 32041 0 3 0x4000082 thrsleep syz-fuzzer 32041 268138 27248 0 3 0x10008a pause ksh *27248 446711 54824 0 7 0x12 sshd 71564 173098 1 0 3 0x100083 ttyin getty 54824 64474 1 0 3 0x80 select sshd 8676 420626 46647 73 3 0x100090 kqread syslogd 46647 90226 1 0 3 0x100082 netio syslogd 71012 45526 1 77 3 0x100090 poll dhclient 17423 219039 1 0 3 0x80 poll dhclient 7953 350031 0 0 3 0x14200 bored smr 8012 221260 0 0 3 0x14200 pgzero zerothread 67378 223042 0 0 3 0x14200 aiodoned aiodoned 61574 146365 0 0 3 0x14200 syncer update 40003 98434 0 0 3 0x14200 cleaner cleaner 24657 501763 0 0 3 0x14200 reaper reaper 17847 71840 0 0 3 0x14200 pgdaemon pagedaemon 14441 479803 0 0 3 0x14200 bored crynlk 2013 33196 0 0 3 0x14200 bored crypto 87230 513031 0 0 3 0x40014200 acpi0 acpi0 61941 472786 0 0 3 0x14200 bored softnet 23524 27563 0 0 3 0x14200 bored systqmp 31277 215002 0 0 3 0x14200 bored systq 13902 215756 0 0 3 0x40014200 bored softclock 44577 237785 0 0 3 0x40014200 idle0 1 292434 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 9464 6329K 6717K 78643K 10686 0 pcb 13 8K 8K 78643K 21 0 rtable 106 3K 4K 78643K 227 0 ifaddr 48 11K 11K 78643K 61 0 counters 21 16K 16K 78643K 23 0 ioctlops 0 0K 4K 78643K 19 0 iov 0 0K 12K 78643K 25 0 mount 1 1K 1K 78643K 1 0 vnodes 1229 77K 78K 78643K 1259 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 8 0K 0K 78643K 12 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 64 0 sigio 0 0K 0K 78643K 2 0 proc 48 38K 63K 78643K 362 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 33 2K 2K 78643K 33 0 ether_multi 1 0K 0K 78643K 1 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 181 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 128 23K 39K 78643K 1017 0 UVM aobj 5 2K 2K 78643K 5 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 7 0K 0K 78643K 13 0 temp 70 3847K 3912K 78643K 1885 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 29 0 27 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 31 0 21 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 1297 0 1297 1 0 1 1 0 8 1 tcpcb 544 12 0 8 1 0 1 1 0 8 0 inpcb 296 44 0 37 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 pfrktable 1344 6 0 6 1 0 1 1 0 8 1 pfrule 1360 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 256 189 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 44 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 6 0 0 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 1461 0 63 88 0 88 88 0 8 0 ffsino 240 1461 0 63 83 0 83 83 0 8 0 nchpl 144 1738 0 133 60 0 60 60 0 8 0 uvmvnodes 72 1536 0 0 28 0 28 28 0 8 0 vnodes 208 1536 0 0 81 0 81 81 0 8 0 namei 1024 4316 0 4316 2 1 1 1 0 8 1 pfiaddrpl 120 2 0 2 1 0 1 1 0 8 1 scxspl 192 5060 0 5060 1 0 1 1 0 8 1 plimitpl 152 14 0 7 1 0 1 1 0 8 0 sigapl 424 250 0 222 4 0 4 4 0 8 0 futexpl 56 646 0 645 1 0 1 1 0 8 0 knotepl 112 61 0 42 1 0 1 1 0 8 0 kqueuepl 144 6 0 4 1 0 1 1 0 8 0 pipepl 272 72 0 62 1 0 1 1 0 8 0 fdescpl 432 236 0 222 2 0 2 2 0 8 0 filepl 120 1180 0 1081 4 0 4 4 0 8 0 lockfpl 104 20 0 19 1 0 1 1 0 8 0 lockfspl 48 9 0 8 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 59 0 50 1 0 1 1 0 8 0 zombiepl 144 222 0 222 2 1 1 1 0 8 1 processpl 928 250 0 222 4 0 4 4 0 8 0 procpl 624 292 0 256 4 0 4 4 0 8 1 sockpl 400 104 0 85 3 0 3 3 0 8 0 mcl64k 65536 5 0 5 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 3 0 3 1 0 1 1 0 8 1 mcl8k 8192 2 0 2 1 0 1 1 0 8 1 mcl4k 4096 12 0 12 2 1 1 1 0 8 1 mcl2k 2048 89538 0 89467 35 18 17 26 0 8 8 mtagpl 96 10 0 2 2 1 1 1 0 8 0 mbufpl 256 142283 0 142180 15 1 14 15 0 8 2 bufpl 280 3375 0 126 233 0 233 233 0 8 0 anonpl 16 39792 0 24594 63 1 62 62 0 107 0 amapchunkpl 152 1435 0 1300 19 0 19 19 0 158 12 amappl16 192 1081 0 257 42 0 42 42 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 25 0 19 1 0 1 1 0 8 0 amappl13 168 57 0 51 1 0 1 1 0 8 0 amappl12 160 41 0 37 1 0 1 1 0 8 0 amappl11 152 48 0 38 1 0 1 1 0 8 0 amappl10 144 13 0 7 1 0 1 1 0 8 0 amappl9 136 377 0 375 1 0 1 1 0 8 0 amappl8 128 331 0 289 2 0 2 2 0 8 0 amappl7 120 105 0 94 1 0 1 1 0 8 0 amappl6 112 28 0 22 1 0 1 1 0 8 0 amappl5 104 152 0 141 1 0 1 1 0 8 0 amappl4 96 438 0 412 1 0 1 1 0 8 0 amappl3 88 123 0 115 1 0 1 1 0 8 0 amappl2 80 1073 0 1006 2 0 2 2 0 8 0 amappl1 72 14136 0 13716 23 10 13 17 0 8 3 amappl 80 539 0 496 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 236 0 222 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 236 0 222 1 0 1 1 0 8 0 vmmpekpl 168 5763 0 5737 3 1 2 2 0 8 0 vmmpepl 168 36390 0 34452 154 5 149 149 0 357 60 vmsppl 272 235 0 222 2 0 2 2 0 8 1 pdppl 4096 478 0 444 6 0 6 6 0 8 1 pvpl 32 132324 0 114161 148 0 148 148 0 265 1 pmappl 200 235 0 222 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 263 0 23 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da747d8,fffffd805da748d0,fffffd8059580300) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da747d8,9,fffffd8059580300,0,0,ffff80001d71d120) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da747d8,0,ffff80001d7234d8,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:555 dofilewritev(ffff80001d71d120,4,ffff80001d7234d8,0,ffff80001d7235c0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d71d120,ffff80001d723570,ffff80001d7235c0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d723640) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc2500, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805da747d8,fffffd805da748d0,fffffd8059580300) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805da747d8,9,fffffd8059580300,0,0,ffff80001d71d120) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805da747d8,0,ffff80001d7234d8,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:555 dofilewritev(ffff80001d71d120,4,ffff80001d7234d8,0,ffff80001d7235c0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80001d71d120,ffff80001d723570,ffff80001d7235c0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff80001d723640) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc2500, count: -8