Warning: Permanently added '10.128.0.202' (ECDSA) to the list of known hosts. 2020/12/02 16:17:13 fuzzer started 2020/12/02 16:17:17 connecting to host at 10.128.15.235:32079 2020/12/02 16:17:17 checking machine... 2020/12/02 16:17:17 checking revisions... 2020/12/02 16:17:17 testing simple program... login: uvm_fault(0xfffffd806bc01220, 0x6f1af5b0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at spllower+0x27: movq cpu_info_full_primary+0x25b0(,%rax,8),%r13 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd806bc01220, 0x6f1af5b0, 0, 1) -> e spllower(ffff80001d94e000) at spllower+0x27 end trace frame: 0xffff80001e9537b0, count: 0 ddb> trace spllower(ffff80001d94e000) at spllower+0x27 single_thread_check_locked(ffff8000ffff8298,0) at single_thread_check_locked+0x16a userret(ffff8000ffff8298) at userret+0x2d5 syscall(ffff80001e9538e0) at syscall+0x429 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x97534c3fa90, count: -5 ddb> show registers rdi 0xffff80001d94e000 rsi 0x40e rbp 0xffff80001e953750 rbx 0x1000 __ALIGN_SIZE rdx 0xffff80001d94e000 rcx 0x40d rax 0x1d94e000 r8 0xffffffff81d7fd16 setrunnable+0x76 r9 0x5 r10 0x22f4d4d14dd28cf3 r11 0xd85dc4d2bca4b654 r12 0xffff80001d8b1c38 r13 0x1 r14 0xffff80001d8b1b30 r15 0x1d94e000 rip 0xffffffff81902ce7 spllower+0x27 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001e953710 ss 0x10 spllower+0x27: movq cpu_info_full_primary+0x25b0(,%rax,8),%r13 ddb> show proc PROC (syz-executor.0) pid=172876 stat=onproc flags process=1000 proc=4080000 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff87b8,0xffffffff82824790 process=0xffff80001d8b1b30 user=0xffff80001e94e000, vmspace=0xfffffd806bc01220 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 61404 445273 68666 0 2 0x3000 syz-executor.0 *61404 172876 68666 0 7 0x4081000 syz-executor.0 68666 106215 94534 0 3 0x82 nanosleep syz-executor.0 94534 501854 25051 0 3 0x82 thrsleep syz-fuzzer 94534 11708 25051 0 3 0x4000082 thrsleep syz-fuzzer 94534 99470 25051 0 3 0x4000082 thrsleep syz-fuzzer 94534 430158 25051 0 3 0x4000082 kqread syz-fuzzer 94534 253365 25051 0 3 0x4000082 thrsleep syz-fuzzer 25051 7139 27350 0 3 0x10008a pause ksh 27350 461960 85445 0 3 0x92 select sshd 65818 207075 1 0 3 0x100083 ttyin getty 85445 24278 1 0 3 0x80 select sshd 28325 102673 89933 73 3 0x100090 kqread syslogd 89933 311135 1 0 3 0x100082 netio syslogd 77782 118313 1 77 3 0x100090 poll dhclient 82169 383609 1 0 3 0x80 poll dhclient 24648 215932 0 0 3 0x14200 bored smr 25649 324707 0 0 2 0x14200 zerothread 80585 236156 0 0 3 0x14200 aiodoned aiodoned 61599 337111 0 0 3 0x14200 syncer update 23257 478861 0 0 3 0x14200 cleaner cleaner 97788 416374 0 0 3 0x14200 reaper reaper 86073 483019 0 0 3 0x14200 pgdaemon pagedaemon 41251 346397 0 0 3 0x14200 bored crynlk 97000 323303 0 0 3 0x14200 bored crypto 49312 37072 0 0 3 0x40014200 acpi0 acpi0 50552 508933 0 0 3 0x14200 bored softnet 54840 186738 0 0 3 0x14200 bored systqmp 40475 92758 0 0 3 0x14200 bored systq 85963 379219 0 0 3 0x40014200 bored softclock 73261 229278 0 0 3 0x40014200 idle0 1 159300 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 9443 6321K 6321K 78643K 10540 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 32 8K 8K 78643K 32 0 counters 20 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1199 75K 75K 78643K 1204 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 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 3 8K 12K 78643K 18 0 proc 47 38K 54K 78643K 324 0 subproc 16 1K 1K 78643K 17 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 22 1K 1K 78643K 22 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 19 95K 95K 78643K 19 0 exec 0 0K 2K 78643K 295 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 49 10K 11K 78643K 597 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 6 0 temp 40 3950K 4013K 78643K 1663 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 4 0 0 1 0 1 1 0 8 0 rtpcb 120 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 1 1 0 1 1 0 8 0 unpcb 120 23 0 15 1 0 1 1 0 8 0 syncache 296 4 0 4 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 10 0 3 1 0 1 1 0 8 0 inpcb 296 28 0 21 1 0 1 1 0 8 0 nd6 48 3 0 0 1 0 1 1 0 8 0 kcovpl 48 1 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 144 0 0 9 0 9 9 0 8 0 art_table 32 145 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1412 0 21 87 0 87 87 0 8 0 ffsino 240 1412 0 21 82 0 82 82 0 8 0 nchpl 144 1627 0 36 59 0 59 59 0 8 0 uvmvnodes 72 1438 0 0 27 0 27 27 0 8 0 vnodes 208 1438 0 0 76 0 76 76 0 8 0 namei 1024 3827 0 3827 1 0 1 1 0 8 1 scxspl 216 4652 0 4652 1 0 1 1 0 8 1 plimitpl 152 13 0 7 1 0 1 1 0 8 0 sigapl 424 209 0 182 4 0 4 4 0 8 0 futexpl 56 3 0 3 1 0 1 1 0 8 1 knotepl 112 62 0 50 1 0 1 1 0 8 0 kqueuepl 152 2 0 0 1 0 1 1 0 8 0 pipepl 272 69 0 61 1 0 1 1 0 8 0 fdescpl 432 195 0 182 2 0 2 2 0 8 0 filepl 120 920 0 849 3 0 3 3 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 144 16 0 7 1 0 1 1 0 8 0 pgrppl 48 16 0 7 1 0 1 1 0 8 0 ucredpl 96 48 0 41 1 0 1 1 0 8 0 zombiepl 144 182 0 182 1 0 1 1 0 8 1 processpl 992 209 0 182 4 0 4 4 0 8 0 procpl 656 214 0 182 3 0 3 3 0 8 0 sockpl 400 68 0 51 2 0 2 2 0 8 0 mcl4k 4096 8 0 8 1 0 1 1 0 8 1 mcl2k 2048 9252 0 9224 6 2 4 6 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 15601 0 15532 5 0 5 5 0 8 0 bufpl 280 3440 0 169 234 0 234 234 0 8 0 anonpl 16 22188 0 20125 16 2 14 14 0 107 3 amapchunkpl 152 779 0 710 5 0 5 5 0 158 1 amappl16 192 154 0 97 3 0 3 3 0 8 0 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 24 0 19 1 0 1 1 0 8 0 amappl13 168 18 0 16 1 0 1 1 0 8 0 amappl12 160 7 0 6 2 1 1 1 0 8 0 amappl11 152 42 0 33 1 0 1 1 0 8 0 amappl10 144 12 0 7 1 0 1 1 0 8 0 amappl9 136 358 0 358 1 0 1 1 0 8 1 amappl8 128 78 0 66 1 0 1 1 0 8 0 amappl7 120 202 0 197 1 0 1 1 0 8 0 amappl6 112 55 0 45 1 0 1 1 0 8 0 amappl5 104 375 0 361 1 0 1 1 0 8 0 amappl4 96 242 0 218 1 0 1 1 0 8 0 amappl3 88 101 0 94 1 0 1 1 0 8 0 amappl2 80 783 0 724 2 0 2 2 0 8 0 amappl1 72 13478 0 13051 23 5 18 18 0 8 9 amappl 80 406 0 379 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 195 0 182 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 195 0 182 1 0 1 1 0 8 0 vmmpekpl 168 5642 0 5625 1 0 1 1 0 8 0 vmmpepl 168 29743 0 28715 76 3 73 73 0 357 28 vmsppl 272 194 0 182 1 0 1 1 0 8 0 pdppl 4096 396 0 364 45 9 36 36 0 8 4 pvpl 32 108347 0 103522 116 0 116 116 0 265 75 pmappl 200 194 0 182 1 0 1 1 0 8 0 extentpl 40 54 0 37 1 0 1 1 0 8 0 phpool 112 247 0 13 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace spllower(ffff80001d94e000) at spllower+0x27 single_thread_check_locked(ffff8000ffff8298,0) at single_thread_check_locked+0x16a userret(ffff8000ffff8298) at userret+0x2d5 syscall(ffff80001e9538e0) at syscall+0x429 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x97534c3fa90, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace spllower(ffff80001d94e000) at spllower+0x27 single_thread_check_locked(ffff8000ffff8298,0) at single_thread_check_locked+0x16a userret(ffff8000ffff8298) at userret+0x2d5 syscall(ffff80001e9538e0) at syscall+0x429 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x97534c3fa90, count: -5