uvm_fault(0xfffffd806bc13990, 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(0xfffffd806bc13990, 0x0, 0, 2) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff80001d360300, count: 0 ddb> trace memcpy() at memcpy+0x15 sbappendstream(fffffd805d903908,fffffd805d9039f8,fffffd805b7d4d00) at sbappendstream+0x105 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd805d903908,9,fffffd805b7d4d00,0,0,ffff8000ffff4ee0) at tcp_usrreq+0x225 sys/netinet/tcp_usrreq.c:323 sosend(fffffd805d903908,0,ffff80001d360558,0,0,80) at sosend+0x669 sys/kern/uipc_socket.c:524 dofilewritev(ffff8000ffff4ee0,4,ffff80001d360558,0,ffff80001d360640) at dofilewritev+0x1ac sys/kern/sys_generic.c:364 sys_write(ffff8000ffff4ee0,ffff80001d3605f0,ffff80001d360640) at sys_write+0x83 sys/kern/sys_generic.c:284 syscall(ffff80001d3606c0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc8250, count: -8 ddb> show registers rdi 0 rsi 0xfffffd805b8b1000 rbp 0xffff80001d3602a0 rbx 0x1 rdx 0x194 rcx 0x32 rax 0 r8 0 r9 0x5 r10 0x6c2e713f0ba71658 r11 0 r12 0xfffffd805b7d4d00 r13 0xfffffd805b7d4e00 r14 0x1 r15 0xfffffd805d9039f8 rip 0xffffffff817cd505 memcpy+0x15 cs 0x8 rflags 0x10203 __ALIGN_SIZE+0xf203 rsp 0xffff80001d360228 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (sshd) pid=436511 stat=onproc flags process=12 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff58c0,0xffff8000ffff4298 process=0xffff80001d3937f0 user=0xffff80001d35b000, vmspace=0xfffffd806bc13990 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 5872 517647 42995 0 3 0x80 nanosleep syz-executor.1 5872 281336 42995 0 3 0x4000080 ttyout syz-executor.1 5872 511216 42995 0 3 0x4000000 fdlock syz-executor.1 5872 116847 42995 0 3 0x4000080 fsleep syz-executor.1 42995 137509 48635 0 3 0x82 nanosleep syz-executor.1 65109 59390 48635 0 2 0x2 syz-executor.0 48635 85389 42125 0 2 0x2 syz-fuzzer 48635 82290 42125 0 2 0x4000002 syz-fuzzer 48635 347057 42125 0 3 0x4000082 thrsleep syz-fuzzer 48635 207979 42125 0 3 0x4000082 thrsleep syz-fuzzer 48635 138341 42125 0 3 0x4000082 thrsleep syz-fuzzer 48635 424899 42125 0 3 0x4000082 thrsleep syz-fuzzer 48635 282840 42125 0 3 0x4000082 thrsleep syz-fuzzer 48635 96182 42125 0 3 0x4000082 thrsleep syz-fuzzer 42125 144725 28348 0 3 0x10008a pause ksh *28348 436511 10480 0 7 0x12 sshd 31695 394662 1 0 3 0x100083 ttyin getty 10480 82485 1 0 3 0x80 select sshd 95563 48367 60176 73 3 0x100090 kqread syslogd 60176 452075 1 0 3 0x100082 netio syslogd 15661 47025 1 77 3 0x100090 poll dhclient 44711 435579 1 0 3 0x80 poll dhclient 14344 264992 0 0 3 0x14200 pgzero zerothread 64323 361298 0 0 3 0x14200 aiodoned aiodoned 31905 519701 0 0 3 0x14200 syncer update 58000 468667 0 0 3 0x14200 cleaner cleaner 59113 58150 0 0 3 0x14200 reaper reaper 97542 178600 0 0 3 0x14200 pgdaemon pagedaemon 52940 59691 0 0 3 0x14200 bored crynlk 69773 449153 0 0 3 0x14200 bored crypto 46760 509464 0 0 3 0x40014200 acpi0 acpi0 93349 90308 0 0 3 0x14200 bored softnet 22260 159341 0 0 3 0x14200 bored systqmp 35574 496721 0 0 3 0x14200 bored systq 18901 400587 0 0 3 0x40014200 bored softclock 52652 258429 0 0 3 0x40014200 idle0 35325 153675 0 0 3 0x14200 bored smr 1 190397 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 9460 6452K 6452K 78643K 10585 0 pcb 13 8K 8K 78643K 23 0 rtable 106 3K 3K 78643K 194 0 ifaddr 39 10K 10K 78643K 43 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 15 0 iov 0 0K 4K 78643K 2 0 mount 1 1K 1K 78643K 1 0 vnodes 1214 76K 76K 78643K 1235 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 4 0K 0K 78643K 4 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 57 0 proc 47 38K 63K 78643K 358 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 42 185K 185K 78643K 42 0 exec 0 0K 1K 78643K 183 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 115 22K 22K 78643K 1011 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 2 0 NDP 5 0K 0K 78643K 9 0 temp 67 3016K 3082K 78643K 3293 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 19 0 17 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 66 0 55 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 0 1 1 0 8 1 tcpcb 544 27 0 23 2 0 2 2 0 8 1 inpcb 280 68 0 60 2 0 2 2 0 8 1 nd6 48 4 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 213 0 0 14 0 14 14 0 8 0 art_table 32 214 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 6 1 0 1 1 0 8 0 semapl 112 2 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 dino1pl 128 1450 0 50 46 0 46 46 0 8 0 ffsino 240 1450 0 50 83 0 83 83 0 8 0 nchpl 144 1704 0 94 60 0 60 60 0 8 0 uvmvnodes 72 1503 0 0 28 0 28 28 0 8 0 vnodes 208 1503 0 0 80 0 80 80 0 8 0 namei 1024 4213 0 4213 1 0 1 1 0 8 1 scxspl 192 4642 0 4642 1 0 1 1 0 8 1 plimitpl 152 16 0 9 1 0 1 1 0 8 0 sigapl 432 228 0 215 2 0 2 2 0 8 0 futexpl 56 581 0 580 1 0 1 1 0 8 0 knotepl 112 56 0 37 1 0 1 1 0 8 0 kqueuepl 104 14 0 12 1 0 1 1 0 8 0 pipepl 128 146 0 127 1 0 1 1 0 8 0 fdescpl 424 229 0 215 2 0 2 2 0 8 0 filepl 120 1296 0 1195 4 0 4 4 0 8 0 lockfpl 104 9 0 8 1 0 1 1 0 8 0 lockfspl 48 5 0 4 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 96 103 0 96 1 0 1 1 0 8 0 zombiepl 144 215 0 215 1 0 1 1 0 8 1 processpl 872 243 0 215 4 0 4 4 0 8 0 procpl 632 319 0 281 5 0 5 5 0 8 1 sockpl 384 153 0 132 5 0 5 5 0 8 2 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 1 0 1 1 0 1 1 0 8 1 mcl4k 4096 9 0 9 2 1 1 1 0 8 1 mcl2k 2048 68852 0 68798 21 7 14 17 0 8 7 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 108946 0 108804 14 4 10 10 0 8 0 bufpl 280 6184 0 1326 347 0 347 347 0 8 0 anonpl 16 39664 0 21945 74 2 72 72 0 107 0 amapchunkpl 152 1066 0 929 8 0 8 8 0 158 1 amappl16 192 1128 0 149 50 0 50 50 0 8 1 amappl15 184 73 0 65 1 0 1 1 0 8 0 amappl14 176 24 0 23 1 0 1 1 0 8 0 amappl13 168 1 0 1 1 1 0 1 0 8 0 amappl12 160 2 0 1 1 0 1 1 0 8 0 amappl11 152 64 0 51 1 0 1 1 0 8 0 amappl10 144 11 0 10 1 0 1 1 0 8 0 amappl9 136 561 0 558 1 0 1 1 0 8 0 amappl8 128 123 0 95 1 0 1 1 0 8 0 amappl7 120 89 0 79 1 0 1 1 0 8 0 amappl6 112 73 0 65 1 0 1 1 0 8 0 amappl5 104 131 0 122 1 0 1 1 0 8 0 amappl4 96 444 0 415 1 0 1 1 0 8 0 amappl3 88 116 0 109 1 0 1 1 0 8 0 amappl2 80 1028 0 957 3 1 2 3 0 8 0 amappl1 72 13926 0 13493 27 16 11 20 0 8 2 amappl 80 539 0 496 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 229 0 215 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 229 0 215 1 0 1 1 0 8 0 vmmpekpl 168 5807 0 5783 2 0 2 2 0 8 0 vmmpepl 168 35958 0 33868 136 7 129 129 0 357 37 vmsppl 272 228 0 215 2 0 2 2 0 8 1 pdppl 4096 464 0 430 6 0 6 6 0 8 1 pvpl 32 128953 0 108250 173 0 173 173 0 265 5 pmappl 200 228 0 215 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 153 0 14 4 0 4 4 0 8 0