uvm_fault(0xfffffd803f015d68, 0x28, 0, 2) -> e kernel: page fault trap, code=0 Stopped at wsmux_do_ioctl+0x6ce: movq %rax,0x10(%rdx,%r15,8) ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f015d68, 0x28, 0, 2) -> e wsmux_do_ioctl(77cf500080163083,80185760,fffffd80310597e0,3,fffffd803f7c7c00) at wsmux_do_ioctl+0x6ce sys/dev/wscons/wsmux.c:404 end trace frame: 0xffff800014a15270, count: 0 ddb> trace wsmux_do_ioctl(77cf500080163083,80185760,fffffd80310597e0,3,fffffd803f7c7c00) at wsmux_do_ioctl+0x6ce sys/dev/wscons/wsmux.c:404 VOP_IOCTL(a0bc9abbd35d6ff4,80185760,fffffd803c1fc620,ffff8000ffff9520,fffffd80310597e0,ffff8000ffff9520) at VOP_IOCTL+0x80 sys/kern/vfs_vops.c:290 vn_ioctl(5ef1fade0b5499dd,fffffd803c1fc620,ffff8000ffff9520,18) at vn_ioctl+0xc5 sys/kern/vfs_vnops.c:512 sys_ioctl(80acda5835ef7d9b,0,ffff8000ffff9520) at sys_ioctl+0x639 syscall(31bfb0d111ca59ef) at syscall+0x528 Xsyscall(6,0,ffffffffffffff8b,0,3,127b3335010) at Xsyscall+0x128 end of kernel end trace frame: 0x12a75d68430, count: -6 ddb> show registers rdi 0xff rsi 0x2 rbp 0xffff800014a151f0 rbx 0x2 rdx 0 rcx 0x1 rax 0 r8 0xffffffff81d09e11 wsmux_do_ioctl+0x1e1 r9 0x7 r10 0x1a0206d473712d68 r11 0xcae936e0ddf54ad6 r12 0xffff800000669150 r13 0 r14 0xffff800014a153a0 r15 0x3 rip 0xffffffff81d0a2fe wsmux_do_ioctl+0x6ce cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff800014a151a0 ss 0x10 wsmux_do_ioctl+0x6ce: movq %rax,0x10(%rdx,%r15,8) ddb> show proc PROC (syz-executor0) pid=443945 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff84b8,0xffff8000ffff8720 process=0xffff8000149d7088 user=0xffff800014a10000, vmspace=0xfffffd803f015d68 estcpu=36, cpticks=50, pctcpu=0.52 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 24713 203781 5191 0 2 0 syz-executor0 *24713 443945 5191 0 7 0x4000000 syz-executor0 24713 233110 5191 0 3 0x4000080 fsleep syz-executor0 24713 129110 5191 0 3 0x4000080 fsleep syz-executor0 5191 481806 90680 0 3 0x82 nanosleep syz-executor0 68847 164901 90680 0 3 0x82 piperd syz-executor1 69810 438999 1 0 3 0x100083 ttyin getty 63923 420449 0 0 3 0x14200 bored sosplice 90680 422106 78961 0 3 0x82 thrsleep syz-fuzzer 90680 251284 78961 0 3 0x4000082 thrsleep syz-fuzzer 90680 38005 78961 0 3 0x4000082 thrsleep syz-fuzzer 90680 84822 78961 0 3 0x4000082 thrsleep syz-fuzzer 90680 347521 78961 0 3 0x4000082 thrsleep syz-fuzzer 90680 355814 78961 0 3 0x4000082 thrsleep syz-fuzzer 90680 29806 78961 0 3 0x4000082 thrsleep syz-fuzzer 90680 18688 78961 0 3 0x4000082 kqread syz-fuzzer 78961 17992 49282 0 3 0x10008a pause ksh 49282 249930 15199 0 3 0x92 select sshd 15199 411779 1 0 3 0x80 select sshd 49388 116297 89186 73 2 0x100090 syslogd 89186 92259 1 0 3 0x100082 netio syslogd 48797 492019 1 77 3 0x100090 poll dhclient 68573 465789 1 0 3 0x80 poll dhclient 91717 450036 0 0 3 0x14200 pgzero zerothread 79908 474184 0 0 3 0x14200 aiodoned aiodoned 52353 355204 0 0 3 0x14200 syncer update 23608 400085 0 0 3 0x14200 cleaner cleaner 16937 37134 0 0 3 0x14200 reaper reaper 38121 349957 0 0 3 0x14200 pgdaemon pagedaemon 49432 328975 0 0 3 0x14200 bored crynlk 80250 435968 0 0 3 0x14200 bored crypto 30495 163212 0 0 3 0x40014200 acpi0 acpi0 39723 148432 0 0 3 0x14200 bored softnet 73931 459886 0 0 3 0x14200 bored systqmp 14873 448696 0 0 3 0x14200 bored systq 44032 340991 0 0 3 0x40014200 bored softclock 58421 206863 0 0 3 0x40014200 idle0 1 152824 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 Kern Lim devbuf 9530 8915K 8925K 78643K 11701 0 0 pcb 23 9K 11K 78643K 2382 0 0 rtable 100 3K 3K 78643K 766 0 0 ifaddr 65 15K 16K 78643K 365 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 51 0 0 iov 0 0K 32K 78643K 549 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1193 75K 76K 78643K 4333 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 88 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 435 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1777 193K 286K 78643K 12501 0 0 file desc 5 13K 25K 78643K 4887 0 0 sigio 0 0K 0K 78643K 84 0 0 proc 42 30K 54K 78643K 1093 0 0 subproc 64 65538K 67586K 78643K 256 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 695 0 0 in_multi 33 2K 2K 78643K 243 0 0 ether_multi 1 0K 0K 78643K 20 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 108 477K 477K 78643K 108 0 0 exec 0 0K 1K 78643K 531 0 0 pfkey data 0 0K 0K 78643K 2 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 91 21K 41K 78643K 12595 0 0 UVM aobj 130 6K 6K 78643K 165 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 154 0 0 NDP 14 0K 0K 78643K 105 0 0 temp 184 2347K 2423K 78643K 15918 0 0 kqueue 0 0K 0K 78643K 55 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 8 0 4 1 0 1 1 0 8 0 inpcbpl 280 2203 0 2196 1 0 1 1 0 8 0 plimitpl 152 67 0 60 1 0 1 1 0 8 0 rtentry 112 77 0 37 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 841 0 837 1 0 1 1 0 8 0 nd6 48 12 0 8 1 0 1 1 0 8 0 ppxss 1128 54 0 54 18 18 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 369 0 181 12 0 12 12 0 8 0 art_table 32 370 0 181 2 0 2 2 0 8 0 art_node 16 76 0 42 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 1 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 433 0 423 1 0 1 1 0 8 0 shmpl 112 163 0 35 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 10883 0 9424 48 0 48 48 0 8 0 ffsino 240 10883 0 9424 87 1 86 86 0 8 0 nchpl 144 18084 0 16520 60 0 60 60 0 8 0 uvmvnodes 72 6463 0 0 118 0 118 118 0 8 0 vnodes 200 6463 0 0 341 0 341 341 0 8 0 namei 1024 56546 0 56546 3 2 1 1 0 8 1 scsiplug 64 21 0 21 13 13 0 1 0 8 0 scxspl 192 62208 0 62208 25 24 1 6 0 8 1 sigapl 432 5044 0 5031 2 0 2 2 0 8 0 futexpl 56 77663 0 77661 5 4 1 1 0 8 0 knotepl 112 1452 0 1425 5 4 1 2 0 8 0 kqueuepl 104 1731 0 1728 1 0 1 1 0 8 0 pipepl 112 3206 0 3187 12 11 1 2 0 8 0 fdescpl 424 5045 0 5031 2 0 2 2 0 8 0 filepl 120 32029 0 31933 7 3 4 5 0 8 1 lockfpl 96 1721 0 1721 6 5 1 1 0 8 1 lockfspl 24 2864 0 2864 6 5 1 1 0 8 1 sessionpl 112 23 0 13 1 0 1 1 0 8 0 pgrppl 48 93 0 83 1 0 1 1 0 8 0 ucredpl 96 10648 0 10641 1 0 1 1 0 8 0 zombiepl 144 5031 0 5031 2 1 1 1 0 8 1 processpl 840 5059 0 5031 5 1 4 4 0 8 0 procpl 600 11740 0 11702 4 0 4 4 0 8 0 sosppl 128 122 0 122 24 23 1 1 0 8 1 sockpl 384 4454 0 4437 8 5 3 4 0 8 1 mcl64k 65536 2544 0 2543 231 230 1 33 0 8 0 mcl16k 16384 23 0 23 19 19 0 1 0 8 0 mcl12k 12288 91 0 91 19 18 1 1 0 8 1 mcl9k 9216 104 0 104 17 16 1 1 0 8 1 mcl8k 8192 105 0 105 24 24 0 1 0 8 0 mcl4k 4096 237 0 237 12 11 1 1 0 8 1 mcl2k2 2112 28 0 28 16 15 1 1 0 8 1 mcl2k 2048 47142 0 47109 10 5 5 8 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 102290 0 102228 134 126 8 22 0 8 0 bufpl 256 16116 0 9653 405 0 405 405 0 8 0 anonpl 16 513186 0 505620 231 184 47 50 0 62 12 amapchunkpl 152 35873 0 35790 308 213 95 96 0 158 91 amappl16 192 30693 0 30299 242 215 27 32 0 8 7 amappl15 184 2060 0 2058 1 0 1 1 0 8 0 amappl14 176 12 0 9 2 1 1 1 0 8 0 amappl13 168 30 0 27 1 0 1 1 0 8 0 amappl12 160 19 0 17 1 0 1 1 0 8 0 amappl11 152 1780 0 1769 1 0 1 1 0 8 0 amappl10 144 2457 0 2456 2 1 1 1 0 8 0 amappl9 136 1905 0 1903 1 0 1 1 0 8 0 amappl8 128 211 0 178 3 1 2 2 0 8 0 amappl7 120 47 0 37 1 0 1 1 0 8 0 amappl6 112 53 0 40 1 0 1 1 0 8 0 amappl5 104 194 0 183 1 0 1 1 0 8 0 amappl4 96 324 0 299 2 1 1 2 0 8 0 amappl3 88 345 0 340 1 0 1 1 0 8 0 amappl2 80 51263 0 51210 2 0 2 2 0 8 0 amappl1 72 97329 0 96909 24 14 10 18 0 8 0 amappl 72 12074 0 12041 1 0 1 1 0 75 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 164 0 35 3 0 3 3 0 8 0 uaddrrnd 24 5045 0 5031 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5045 0 5031 1 0 1 1 0 8 0 vmmpekpl 168 35700 0 35680 2 0 2 2 0 8 0 vmmpepl 168 527923 0 526570 238 165 73 79 0 357 9 vmsppl 264 5044 0 5031 4 3 1 2 0 8 0 pdppl 4096 10096 0 10062 6 1 5 6 0 8 0 pvpl 32 1526521 0 1515372 543 387 156 239 0 265 66 pmappl 192 5044 0 5031 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 950 0 421 19 2 17 17 0 8 0