uvm_fault(0xfffffd803f015738, 0x10, 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(0xfffffd803f015738, 0x10, 0, 2) -> e wsmux_do_ioctl(89063e48e5d6e261,80185760,fffffd8037e760b0,3,fffffd803f7c77e0) at wsmux_do_ioctl+0x6ce sys/dev/wscons/wsmux.c:404 end trace frame: 0xffff800014a38430, count: 0 ddb> trace wsmux_do_ioctl(89063e48e5d6e261,80185760,fffffd8037e760b0,3,fffffd803f7c77e0) at wsmux_do_ioctl+0x6ce sys/dev/wscons/wsmux.c:404 VOP_IOCTL(312c608220ae305b,80185760,fffffd8030794f10,ffff8000ffff8008,fffffd8037e760b0,ffff8000ffff8008) at VOP_IOCTL+0x80 sys/kern/vfs_vops.c:290 vn_ioctl(d39b910065049c7f,fffffd8030794f10,ffff8000ffff8008,18) at vn_ioctl+0xc5 sys/kern/vfs_vnops.c:512 sys_ioctl(929bbd9c89191901,0,ffff8000ffff8008) at sys_ioctl+0x639 syscall(f6675b67fc023366) at syscall+0x528 Xsyscall(6,0,ffffffffffffff89,0,3,ac85f849010) at Xsyscall+0x128 end of kernel end trace frame: 0xacac4955b70, count: -6 ddb> show registers rdi 0xff rsi 0x1 rbp 0xffff800014a383b0 rbx 0x1 rdx 0 rcx 0 rax 0 r8 0xffffffff81d09e11 wsmux_do_ioctl+0x1e1 r9 0x7 r10 0x295371b3f8608861 r11 0xc6289eb06760f04b r12 0xffff800000669150 r13 0 r14 0xffff800014a38560 r15 0 rip 0xffffffff81d0a2fe wsmux_do_ioctl+0x6ce cs 0x8 rflags 0x10293 __ALIGN_SIZE+0xf293 rsp 0xffff800014a38360 ss 0x10 wsmux_do_ioctl+0x6ce: movq %rax,0x10(%rdx,%r15,8) ddb> show proc PROC (syz-executor0) pid=131207 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8e18,0xffff80001496c4d0 process=0xffff8000149b2020 user=0xffff800014a33000, vmspace=0xfffffd803f015738 estcpu=36, cpticks=17, pctcpu=0.85 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 4590 423578 25031 0 2 0 syz-executor0 * 4590 131207 25031 0 7 0x4000000 syz-executor0 4590 265079 25031 0 3 0x4000080 fsleep syz-executor0 91550 138462 83288 0 3 0x82 nanosleep syz-executor1 25031 155477 83288 0 3 0x82 nanosleep syz-executor0 65437 377054 0 0 3 0x14200 bored sosplice 83288 488286 31561 0 3 0x82 thrsleep syz-fuzzer 83288 170258 31561 0 3 0x4000082 thrsleep syz-fuzzer 83288 47257 31561 0 3 0x4000082 thrsleep syz-fuzzer 83288 218182 31561 0 3 0x4000082 kqread syz-fuzzer 83288 24297 31561 0 3 0x4000082 thrsleep syz-fuzzer 83288 7891 31561 0 3 0x4000082 thrsleep syz-fuzzer 83288 475670 31561 0 3 0x4000082 thrsleep syz-fuzzer 83288 148136 31561 0 3 0x4000082 thrsleep syz-fuzzer 31561 263897 94719 0 3 0x10008a pause ksh 94719 271874 22515 0 3 0x92 select sshd 98846 182001 1 0 3 0x100083 ttyin getty 22515 401187 1 0 3 0x80 select sshd 50790 347042 34746 73 2 0x100090 syslogd 34746 374431 1 0 3 0x100082 netio syslogd 99149 295030 1 77 3 0x100090 poll dhclient 22614 365548 1 0 3 0x80 poll dhclient 54836 447922 0 0 2 0x14200 zerothread 37655 143226 0 0 3 0x14200 aiodoned aiodoned 26571 10089 0 0 3 0x14200 syncer update 11698 146066 0 0 3 0x14200 cleaner cleaner 33554 223969 0 0 3 0x14200 reaper reaper 17116 410319 0 0 3 0x14200 pgdaemon pagedaemon 78605 384068 0 0 3 0x14200 bored crynlk 40580 108133 0 0 3 0x14200 bored crypto 32508 240463 0 0 3 0x40014200 acpi0 acpi0 99569 99711 0 0 3 0x14200 bored softnet 43097 354810 0 0 3 0x14200 bored systqmp 17103 194658 0 0 3 0x14200 bored systq 80937 119723 0 0 3 0x40014200 bored softclock 57896 406018 0 0 3 0x40014200 idle0 1 26043 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 9524 6360K 6370K 78643K 12136 0 0 pcb 23 9K 11K 78643K 3127 0 0 rtable 100 3K 3K 78643K 1130 0 0 ifaddr 59 16K 19K 78643K 562 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 60 0 0 iov 0 0K 32K 78643K 738 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1177 74K 76K 78643K 5183 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 91 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 465 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1777 193K 286K 78643K 12501 0 0 file desc 5 13K 25K 78643K 6267 0 0 sigio 0 0K 0K 78643K 160 0 0 proc 42 30K 55K 78643K 1267 0 0 subproc 64 65538K 67586K 78643K 284 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 806 0 0 in_multi 33 2K 2K 78643K 327 0 0 ether_multi 1 0K 0K 78643K 40 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 138 609K 609K 78643K 138 0 0 exec 0 0K 1K 78643K 660 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 113 22K 40K 78643K 15803 0 0 UVM aobj 130 8K 8K 78643K 136 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 203 0 0 NDP 12 0K 0K 78643K 162 0 0 temp 170 2347K 2419K 78643K 19696 0 0 kqueue 0 0K 0K 78643K 79 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 10 0 6 1 0 1 1 0 8 0 inpcbpl 280 2634 0 2627 1 0 1 1 0 8 0 plimitpl 152 89 0 82 1 0 1 1 0 8 0 rtentry 112 95 0 55 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 916 0 912 1 0 1 1 0 8 0 nd6 48 16 0 12 1 0 1 1 0 8 0 swfcl 56 1 0 0 1 0 1 1 0 8 0 ppxss 1128 104 0 104 32 31 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 459 0 272 12 0 12 12 0 8 0 art_table 32 460 0 272 2 0 2 2 0 8 0 art_node 16 94 0 60 1 0 1 1 0 8 0 sysvmsgpl 40 22 0 8 1 0 1 1 0 8 0 semapl 112 461 0 451 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 13657 0 12156 50 1 49 49 0 8 0 ffsino 240 13657 0 12156 89 0 89 89 0 8 0 nchpl 144 22852 0 21273 59 0 59 59 0 8 0 uvmvnodes 72 6449 0 0 118 0 118 118 0 8 0 vnodes 200 6449 0 0 340 0 340 340 0 8 0 namei 1024 72375 0 72375 5 4 1 1 0 8 1 scsiplug 64 10 0 10 7 6 1 1 0 8 1 scxspl 192 73552 0 73552 35 32 3 6 0 8 3 sigapl 432 6416 0 6403 2 0 2 2 0 8 0 futexpl 56 99004 0 99003 6 5 1 1 0 8 0 knotepl 112 1755 0 1728 6 5 1 2 0 8 0 kqueuepl 104 2139 0 2137 1 0 1 1 0 8 0 pipepl 112 4024 0 4005 17 16 1 2 0 8 0 fdescpl 424 6417 0 6403 2 0 2 2 0 8 0 filepl 120 40946 0 40851 12 8 4 5 0 8 1 lockfpl 96 2026 0 2026 11 10 1 1 0 8 1 lockfspl 24 3618 0 3618 10 9 1 1 0 8 1 sessionpl 112 23 0 13 1 0 1 1 0 8 0 pgrppl 48 107 0 97 1 0 1 1 0 8 0 ucredpl 96 13748 0 13741 1 0 1 1 0 8 0 zombiepl 144 6403 0 6402 2 1 1 1 0 8 0 processpl 840 6431 0 6402 5 1 4 4 0 8 0 procpl 600 14878 0 14840 9 5 4 4 0 8 1 sosppl 128 107 0 107 26 25 1 1 0 8 1 sockpl 384 5573 0 5556 12 9 3 4 0 8 1 mcl64k 65536 3459 0 3459 319 318 1 64 0 8 1 mcl16k 16384 21 0 21 13 13 0 1 0 8 0 mcl12k 12288 122 0 122 23 22 1 1 0 8 1 mcl9k 9216 107 0 107 29 28 1 1 0 8 1 mcl8k 8192 139 0 139 25 25 0 1 0 8 0 mcl4k 4096 296 0 296 13 12 1 1 0 8 1 mcl2k2 2112 48 0 48 20 20 0 1 0 8 0 mcl2k 2048 49039 0 49009 11 6 5 8 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 113118 0 113044 160 152 8 37 0 8 0 bufpl 256 17615 0 11144 405 0 405 405 0 8 0 anonpl 16 635572 0 627969 293 255 38 50 0 62 2 amapchunkpl 152 27495 0 27414 84 80 4 14 0 158 0 amappl16 192 37469 0 37065 346 323 23 34 0 8 2 amappl15 184 1425 0 1424 1 0 1 1 0 8 0 amappl14 176 266 0 266 2 2 0 1 0 8 0 amappl13 168 583 0 576 1 0 1 1 0 8 0 amappl12 160 3738 0 3738 3 3 0 1 0 8 0 amappl11 152 215 0 206 1 0 1 1 0 8 0 amappl10 144 559 0 557 1 0 1 1 0 8 0 amappl9 136 316 0 314 1 0 1 1 0 8 0 amappl8 128 3978 0 3927 2 0 2 2 0 8 0 amappl7 120 596 0 585 1 0 1 1 0 8 0 amappl6 112 315 0 306 1 0 1 1 0 8 0 amappl5 104 1680 0 1669 1 0 1 1 0 8 0 amappl4 96 323 0 299 2 1 1 2 0 8 0 amappl3 88 585 0 579 1 0 1 1 0 8 0 amappl2 80 63009 0 62958 2 0 2 2 0 8 0 amappl1 72 120722 0 120300 28 19 9 19 0 8 0 amappl 72 15194 0 15162 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 64 135 0 6 3 0 3 3 0 8 0 uaddrrnd 24 6417 0 6403 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6417 0 6403 1 0 1 1 0 8 0 vmmpekpl 168 43697 0 43674 2 0 2 2 0 8 0 vmmpepl 168 656367 0 655000 317 251 66 76 0 357 2 vmsppl 264 6416 0 6403 4 3 1 2 0 8 0 pdppl 4096 12840 0 12806 8 3 5 6 0 8 0 pvpl 32 1960748 0 1949565 701 542 159 232 0 265 68 pmappl 192 6416 0 6403 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 1067 0 535 19 1 18 18 0 8 0