uvm_fault(0xfffffd806e951cf8, 0x0, 0, 2) -> e kernel: page fault trap, code=0 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd806e951cf8, 0x0, 0, 2) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff800020efef80, count: 0 ddb{0}> trace memcpy() at memcpy+0x15 sbappendstream(fffffd806eb3baf8,fffffd806eb3bbf0,fffffd8063cdd900) at sbappendstream+0x123 sys/kern/uipc_socket2.c:665 tcp_usrreq(fffffd806eb3baf8,9,fffffd8063cdd900,0,0,ffff800020ed1d50) at tcp_usrreq+0x227 sys/netinet/tcp_usrreq.c:323 sosend(fffffd806eb3baf8,0,ffff800020eff1e8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020ed1d50,4,ffff800020eff1e8,0,ffff800020eff2d0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020ed1d50,ffff800020eff280,ffff800020eff2d0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020eff350) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020eff350) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd9fe0, count: -8 ddb{0}> show registers rdi 0 rsi 0xfffffd8063cdd970 rbp 0xffff800020efef20 rbx 0x1 rdx 0x90 rcx 0x12 rax 0xffffffff8190ce9e sbcompress+0x1ae r8 0xffffffff8190d174 sbappendstream+0x64 r9 0x5 r10 0xefa1922e7fe218e0 r11 0 r12 0xfffffd8063cdd900 r13 0xfffffd8063cddd00 r14 0x1 r15 0xfffffd806eb3bbf0 rip 0xffffffff81f13c35 memcpy+0x15 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800020efeea8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (sshd) pid=175549 stat=onproc flags process=12 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ed0280,0xffff800020ed1130 process=0xffff800020ec8ba0 user=0xffff800020efa000, vmspace=0xfffffd806e951cf8 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 4961 315664 0 0 3 0x14200 bored sosplice 37658 101198 61586 0 2 0x2 syz-executor.1 17870 363503 61586 0 2 0x2 syz-executor.0 61586 202121 4600 0 3 0x82 thrsleep syz-fuzzer 61586 413343 4600 0 3 0x4000082 nanosleep syz-fuzzer 61586 18083 4600 0 3 0x4000082 thrsleep syz-fuzzer 61586 395287 4600 0 3 0x4000082 thrsleep syz-fuzzer 61586 341442 4600 0 2 0x4000002 syz-fuzzer 61586 218853 4600 0 3 0x4000082 thrsleep syz-fuzzer 61586 303396 4600 0 7 0x4000002 syz-fuzzer 61586 317064 4600 0 3 0x4000082 thrsleep syz-fuzzer 61586 233992 4600 0 2 0x4000482 syz-fuzzer 61586 265871 4600 0 3 0x4000082 thrsleep syz-fuzzer 4600 441914 83184 0 3 0x10008a pause ksh *83184 175549 53078 0 7 0x12 sshd 73544 467362 1 0 3 0x100083 ttyin getty 53078 62077 1 0 3 0x80 select sshd 84488 236123 23702 74 3 0x100092 bpf pflogd 23702 431186 1 0 3 0x80 netio pflogd 97979 7132 66846 73 3 0x100090 kqread syslogd 66846 192276 1 0 3 0x100082 netio syslogd 54130 459748 1 77 3 0x100090 poll dhclient 16587 102977 1 0 3 0x80 poll dhclient 99031 288901 0 0 3 0x14200 bored smr 87417 207601 0 0 3 0x14200 pgzero zerothread 3277 42555 0 0 3 0x14200 aiodoned aiodoned 45734 461153 0 0 3 0x14200 syncer update 54847 238256 0 0 3 0x14200 cleaner cleaner 97436 176421 0 0 3 0x14200 reaper reaper 63158 463667 0 0 3 0x14200 pgdaemon pagedaemon 90816 60848 0 0 3 0x14200 bored crynlk 57677 254286 0 0 3 0x14200 bored crypto 79620 371973 0 0 3 0x40014200 acpi0 acpi0 6941 281830 0 0 3 0x40014200 idle1 86634 402977 0 0 3 0x14200 bored softnet 15048 49857 0 0 3 0x14200 bored systqmp 60632 252977 0 0 3 0x14200 bored systq 49052 1291 0 0 3 0x40014200 bored softclock 85889 155298 0 0 3 0x40014200 idle0 1 515994 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 83184 (sshd) thread 0xffff800020ed1d50 (175549) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82683fc8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 #2 kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 #3 alltraps_kern_meltdown+0x7b #4 memcpy+0x15 #5 sbappendstream+0x123 sys/kern/uipc_socket2.c:665 #6 tcp_usrreq+0x227 sys/netinet/tcp_usrreq.c:323 #7 sosend+0x671 sys/kern/uipc_socket.c:549 #8 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #9 sys_write+0x83 sys/kern/sys_generic.c:285 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff8250b0f8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sosend+0x559 sys/kern/uipc_socket.c:537 #3 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #4 sys_write+0x83 sys/kern/sys_generic.c:285 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9496 6407K 6721K 78643K 10789 0 pcb 13 8K 8K 78643K 41 0 rtable 105 3K 3K 78643K 205 0 ifaddr 59 12K 12K 78643K 65 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 4K 78643K 1477 0 iov 0 0K 14K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1286 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 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 20 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 4 9K 25K 78643K 97 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 95K 78643K 464 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 10 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 211 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 95 21K 22K 78643K 1217 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 24 0 NDP 9 0K 0K 78643K 13 0 temp 79 3036K 3100K 78643K 3397 0 kqueue 3 4K 4K 78643K 3 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> 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 plcache 128 20 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 78 0 68 1 0 1 1 0 8 0 syncache 264 5 0 5 2 2 0 1 0 8 0 tcpcb 544 83 0 79 3 1 2 2 0 8 1 inpcb 280 278 0 271 3 1 2 2 0 8 1 nd6 48 6 0 0 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 21 0 0 1 0 1 1 0 8 0 pfstkey 112 21 0 0 1 0 1 1 0 8 0 pfstate 328 21 0 0 2 0 2 2 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 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 semapl 112 18 0 8 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1518 0 110 89 0 89 89 0 8 0 ffsino 272 1518 0 110 95 1 94 95 0 8 0 nchpl 144 1850 0 233 61 0 61 61 0 8 0 uvmvnodes 72 1612 0 0 30 0 30 30 0 8 0 vnodes 208 1612 0 0 85 0 85 85 0 8 0 namei 1024 4898 0 4898 2 1 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 192 5754 0 5754 6 3 3 5 0 8 3 plimitpl 152 15 0 7 1 0 1 1 0 8 0 sigapl 424 313 0 282 4 0 4 4 0 8 0 futexpl 56 1332 0 1332 1 0 1 1 0 8 1 knotepl 112 53 0 34 1 0 1 1 0 8 0 kqueuepl 144 10 0 8 1 0 1 1 0 8 0 pipelkpl 48 84 0 74 1 0 1 1 0 8 0 pipepl 120 168 0 149 1 0 1 1 0 8 0 fdescpl 496 297 0 282 4 1 3 3 0 8 1 filepl 152 1769 0 1668 7 1 6 6 0 8 2 lockfpl 104 19 0 18 1 0 1 1 0 8 0 lockfspl 48 7 0 6 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 151 0 142 1 0 1 1 0 8 0 zombiepl 144 282 0 282 1 0 1 1 0 8 1 processpl 984 313 0 282 5 0 5 5 0 8 0 procpl 624 474 0 434 4 0 4 4 0 8 0 sosppl 128 23 0 23 1 0 1 1 0 8 1 sockpl 400 377 0 358 6 1 5 5 0 8 3 mcl64k 65536 260 0 0 33 0 33 33 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 181 0 0 22 0 22 22 0 8 0 mtagpl 80 2 0 0 1 0 1 1 0 8 0 mbufpl 256 559 0 0 34 0 34 34 0 8 0 bufpl 280 4408 0 192 302 0 302 302 0 8 0 anonpl 16 46133 0 31258 78 2 76 77 0 124 15 amapchunkpl 152 1432 0 1300 8 1 7 8 0 158 0 amappl16 192 1464 0 659 53 4 49 53 0 8 8 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 21 0 18 1 0 1 1 0 8 0 amappl13 168 27 0 25 1 0 1 1 0 8 0 amappl12 160 50 0 45 2 1 1 1 0 8 0 amappl11 152 99 0 80 1 0 1 1 0 8 0 amappl10 144 23 0 17 1 0 1 1 0 8 0 amappl9 136 385 0 384 1 0 1 1 0 8 0 amappl8 128 300 0 286 1 0 1 1 0 8 0 amappl7 120 117 0 105 1 0 1 1 0 8 0 amappl6 112 54 0 49 2 1 1 1 0 8 0 amappl5 104 237 0 223 1 0 1 1 0 8 0 amappl4 96 491 0 461 1 0 1 1 0 8 0 amappl3 88 109 0 104 1 0 1 1 0 8 0 amappl2 80 1448 0 1388 3 1 2 3 0 8 0 amappl1 72 16906 0 16483 25 11 14 20 0 8 3 amappl 80 719 0 679 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 297 0 282 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 297 0 282 1 0 1 1 0 8 0 vmmpekpl 168 6342 0 6310 2 0 2 2 0 8 0 vmmpepl 168 43492 0 41667 115 8 107 109 0 357 23 vmsppl 368 296 0 282 2 0 2 2 0 8 0 pdppl 4096 602 0 564 7 1 6 6 0 8 1 pvpl 32 151809 0 133873 183 0 183 183 0 265 35 pmappl 232 296 0 282 2 1 1 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 320 0 8 9 0 9 9 0 8 0