uvm_fault(0xfffffd8057ed1778, 0x0, 0, 1) -> 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(0xfffffd8057ed1778, 0x0, 0, 1) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff80001e834230, count: 0 ddb> trace memcpy() at memcpy+0x15 bpf_mtap(ffff800000a02580,fffffd805c6c0500,2) at bpf_mtap+0x1fe sys/net/bpf.c:1306 tun_dev_read(5d01,ffff80001e834518,10) at tun_dev_read+0x10f spec_read(ffff80001e834360) at spec_read+0xe9 sys/kern/spec_vnops.c:222 VOP_READ(fffffd80686fa8f0,ffff80001e834518,10,fffffd806c3bfb40) at VOP_READ+0xbf sys/kern/vfs_vops.c:247 vn_read(fffffd8057ee7c40,ffff80001e834518,0) at vn_read+0x11f sys/kern/vfs_vnops.c:375 dofilereadv(ffff80001d7a7eb0,f0,ffff80001e834518,0,ffff80001e834600) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d7a7eb0,ffff80001e8345b0,ffff80001e834600) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001e834680) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6434adcedc0, count: -10 ddb> show registers rdi 0xffff800000a1c08c rsi 0 rbp 0xffff80001e8341a0 rbx 0x8 rdx 0x8 rcx 0x1 rax 0xffff800000a1c08c r8 0xffff80001e8341b0 r9 0x3 r10 0x3a83e2ed5eb3b01b r11 0xffff800000a1c08c r12 0x54 r13 0xfffffd805ce28a00 r14 0x8 r15 0xffff800000a1c08c rip 0xffffffff81874ab5 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80001e8340f8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (syz-executor.1) pid=118605 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff80001d739278,0xffffffff825ac930 process=0xffff8000ffffb938 user=0xffff80001e82f000, vmspace=0xfffffd8057ed1778 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 3493 189290 76773 0 2 0 syz-executor.1 * 3493 118605 76773 0 7 0x4000000 syz-executor.1 14273 358700 45756 0 2 0 syz-executor.0 14273 180843 45756 0 3 0x4000080 fsleep syz-executor.0 76085 210526 0 0 3 0x14200 acct acct 76773 377592 58945 0 3 0x82 nanosleep syz-executor.1 45756 27003 58945 0 3 0x82 nanosleep syz-executor.0 58945 132664 46713 0 3 0x82 thrsleep syz-fuzzer 58945 67209 46713 0 3 0x4000082 thrsleep syz-fuzzer 58945 300931 46713 0 3 0x4000082 thrsleep syz-fuzzer 58945 327489 46713 0 3 0x4000082 thrsleep syz-fuzzer 58945 342785 46713 0 3 0x4000082 thrsleep syz-fuzzer 58945 290261 46713 0 3 0x4000082 kqread syz-fuzzer 58945 364269 46713 0 3 0x4000082 thrsleep syz-fuzzer 58945 58273 46713 0 3 0x4000082 thrsleep syz-fuzzer 46713 20682 70086 0 3 0x10008a pause ksh 70086 234816 90826 0 3 0x92 select sshd 81442 489385 1 0 3 0x100083 ttyin getty 90826 277260 1 0 3 0x80 select sshd 16585 309515 21532 73 3 0x100090 kqread syslogd 21532 284067 1 0 3 0x100082 netio syslogd 21477 6875 1 77 3 0x100090 poll dhclient 26063 230092 1 0 3 0x80 poll dhclient 1768 76547 0 0 3 0x14200 bored smr 54268 512127 0 0 2 0x14200 zerothread 55422 446952 0 0 3 0x14200 aiodoned aiodoned 5031 22685 0 0 3 0x14200 syncer update 67970 505288 0 0 3 0x14200 cleaner cleaner 42367 458816 0 0 3 0x14200 reaper reaper 68613 476025 0 0 3 0x14200 pgdaemon pagedaemon 97345 60124 0 0 3 0x14200 bored crynlk 4490 329393 0 0 3 0x14200 bored crypto 64885 473727 0 0 3 0x40014200 acpi0 acpi0 64225 3492 0 0 3 0x14200 bored softnet 71013 368738 0 0 3 0x14200 bored systqmp 49653 143963 0 0 3 0x14200 bored systq 21671 492727 0 0 3 0x40014200 bored softclock 74622 507000 0 0 3 0x40014200 idle0 1 338180 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 9526 6731K 6920K 78643K 11091 0 pcb 14 8K 8K 78643K 117 0 rtable 114 3K 3K 78643K 272 0 ifaddr 71 14K 14K 78643K 102 0 counters 21 16K 17K 78643K 26 0 ioctlops 0 0K 2K 78643K 29 0 iov 0 0K 32K 78643K 25 0 mount 1 1K 1K 78643K 1 0 vnodes 1226 77K 77K 78643K 1350 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 0K 78643K 22 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1808 195K 288K 78643K 12860 0 file desc 6 17K 25K 78643K 146 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 ip_moptions 0 0K 0K 78643K 13 0 in_multi 40 2K 2K 78643K 51 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 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 124 55K 71K 78643K 1187 0 UVM aobj 12 2K 2K 78643K 18 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 20 0 NDP 12 0K 0K 78643K 21 0 temp 92 3033K 3097K 78643K 3825 0 kqueue 3 4K 9K 78643K 13 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 7 0 0 1 0 1 1 0 8 0 rtpcb 80 39 0 37 1 0 1 1 0 8 0 rtentry 112 49 0 2 2 0 2 2 0 8 0 unpcb 120 95 0 87 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 83 0 83 1 1 0 1 0 8 0 tcpcb 544 38 0 34 1 0 1 1 0 8 0 ipq 40 1 0 1 1 0 1 1 0 8 1 ipqe 40 2 0 2 1 0 1 1 0 8 1 inpcb 280 214 0 206 2 1 1 2 0 8 0 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 pkpcb 40 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 256 200 0 0 13 0 13 13 0 8 0 art_table 32 201 0 0 2 0 2 2 0 8 0 art_node 16 48 0 5 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 2 1 0 1 1 0 8 0 semapl 112 16 0 6 1 0 1 1 0 8 0 shmpl 112 16 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1603 0 201 89 0 89 89 0 8 0 ffsino 240 1603 0 201 83 0 83 83 0 8 0 nchpl 144 2001 0 410 60 0 60 60 0 8 0 uvmvnodes 72 1753 0 0 32 0 32 32 0 8 0 vnodes 208 1753 0 0 93 0 93 93 0 8 0 namei 1024 5150 0 5150 1 0 1 1 0 8 1 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 528 4 0 0 1 0 1 1 0 8 0 scxspl 192 5139 0 5139 1 0 1 1 0 8 1 plimitpl 152 38 0 31 1 0 1 1 0 8 0 sigapl 424 333 0 303 4 0 4 4 0 8 0 futexpl 56 2656 0 2655 1 0 1 1 0 8 0 knotepl 112 75 0 56 1 0 1 1 0 8 0 kqueuepl 144 22 0 20 1 0 1 1 0 8 0 pipelkpl 16 84 0 74 1 0 1 1 0 8 0 pipepl 120 168 0 149 1 0 1 1 0 8 0 fdescpl 432 318 0 303 2 0 2 2 0 8 0 filepl 120 1831 0 1729 4 0 4 4 0 8 0 lockfpl 104 27 0 26 1 0 1 1 0 8 0 lockfspl 48 10 0 9 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 96 181 0 174 1 0 1 1 0 8 0 zombiepl 144 303 0 303 1 0 1 1 0 8 1 processpl 920 333 0 303 4 0 4 4 0 8 0 procpl 624 481 0 442 4 0 4 4 0 8 1 sockpl 400 350 0 332 3 0 3 3 0 8 1 mcl64k 65536 270 0 270 33 9 24 33 0 8 24 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 3 0 3 2 1 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 2 0 2 2 1 1 1 0 8 1 mcl4k 4096 18 0 18 3 2 1 1 0 8 1 mcl2k 2048 64478 0 64421 18 10 8 15 0 8 0 mtagpl 80 8 0 2 2 1 1 1 0 8 0 mbufpl 256 103428 0 103315 26 6 20 23 0 8 8 bufpl 280 3437 0 126 237 0 237 237 0 8 0 anonpl 16 51680 0 38099 72 2 70 70 0 107 15 amapchunkpl 152 1977 0 1846 22 3 19 19 0 158 13 amappl16 192 1791 0 1053 48 4 44 48 0 8 7 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 78 0 71 1 0 1 1 0 8 0 amappl13 168 23 0 22 1 0 1 1 0 8 0 amappl12 160 12 0 7 1 0 1 1 0 8 0 amappl11 152 47 0 38 1 0 1 1 0 8 0 amappl10 144 10 0 7 1 0 1 1 0 8 0 amappl9 136 375 0 372 1 0 1 1 0 8 0 amappl8 128 314 0 277 2 0 2 2 0 8 0 amappl7 120 114 0 101 1 0 1 1 0 8 0 amappl6 112 25 0 20 1 0 1 1 0 8 0 amappl5 104 267 0 256 1 0 1 1 0 8 0 amappl4 96 417 0 392 1 0 1 1 0 8 0 amappl3 88 158 0 151 1 0 1 1 0 8 0 amappl2 80 1724 0 1648 2 0 2 2 0 8 0 amappl1 72 15460 0 15037 23 14 9 17 0 8 0 amappl 80 709 0 665 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 6 1 0 1 1 0 8 0 uaddrrnd 24 322 0 303 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 322 0 303 1 0 1 1 0 8 0 vmmpekpl 168 6109 0 6077 2 0 2 2 0 8 0 vmmpepl 168 44991 0 43068 106 12 94 101 0 357 10 vmsppl 272 321 0 303 2 0 2 2 0 8 0 pdppl 4096 650 0 610 7 1 6 6 0 8 0 pvpl 32 159561 0 142953 168 0 168 168 0 265 34 pmappl 200 321 0 303 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 292 0 31 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace memcpy() at memcpy+0x15 bpf_mtap(ffff800000a02580,fffffd805c6c0500,2) at bpf_mtap+0x1fe sys/net/bpf.c:1306 tun_dev_read(5d01,ffff80001e834518,10) at tun_dev_read+0x10f spec_read(ffff80001e834360) at spec_read+0xe9 sys/kern/spec_vnops.c:222 VOP_READ(fffffd80686fa8f0,ffff80001e834518,10,fffffd806c3bfb40) at VOP_READ+0xbf sys/kern/vfs_vops.c:247 vn_read(fffffd8057ee7c40,ffff80001e834518,0) at vn_read+0x11f sys/kern/vfs_vnops.c:375 dofilereadv(ffff80001d7a7eb0,f0,ffff80001e834518,0,ffff80001e834600) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d7a7eb0,ffff80001e8345b0,ffff80001e834600) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001e834680) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6434adcedc0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace memcpy() at memcpy+0x15 bpf_mtap(ffff800000a02580,fffffd805c6c0500,2) at bpf_mtap+0x1fe sys/net/bpf.c:1306 tun_dev_read(5d01,ffff80001e834518,10) at tun_dev_read+0x10f spec_read(ffff80001e834360) at spec_read+0xe9 sys/kern/spec_vnops.c:222 VOP_READ(fffffd80686fa8f0,ffff80001e834518,10,fffffd806c3bfb40) at VOP_READ+0xbf sys/kern/vfs_vops.c:247 vn_read(fffffd8057ee7c40,ffff80001e834518,0) at vn_read+0x11f sys/kern/vfs_vnops.c:375 dofilereadv(ffff80001d7a7eb0,f0,ffff80001e834518,0,ffff80001e834600) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d7a7eb0,ffff80001e8345b0,ffff80001e834600) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001e834680) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6434adcedc0, count: -10