login: uvm_fault(0xfffffd806e813710, 0x28, 0, 2) -> e kernel: page fault trap, code=0 Stopped at wsmux_do_ioctl+0x736: movq %rax,0x10(%rdx,%r15,8) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd806e813710, 0x28, 0, 2) -> e wsmux_do_ioctl(ffff800000992a00,80185760,ffff800020bc9c50,f,ffff800020b84718) at wsmux_do_ioctl+0x736 sys/dev/wscons/wsmux.c:426 end trace frame: 0xffff800020bc9b30, count: 0 ddb{0}> trace wsmux_do_ioctl(ffff800000992a00,80185760,ffff800020bc9c50,f,ffff800020b84718) at wsmux_do_ioctl+0x736 sys/dev/wscons/wsmux.c:426 VOP_IOCTL(fffffd806dd63e18,80185760,ffff800020bc9c50,f,fffffd807f7c6a20,ffff800020b84718) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290 vn_ioctl(fffffd807060a260,80185760,ffff800020bc9c50,ffff800020b84718) at vn_ioctl+0xb6 sys/kern/vfs_vnops.c:512 sys_ioctl(ffff800020b84718,ffff800020bc9d78,ffff800020bc9de0) at sys_ioctl+0x5b8 syscall(ffff800020bc9e50) at syscall+0x552 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020bc9e50) at syscall+0x552 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,d6111b8e0f0,0,d6111b8e0d0,d6111b8e0c8) at Xsyscall+0x128 end of kernel end trace frame: 0xd6345628200, count: -6 ddb{0}> show registers rdi 0xff rsi 0x2 rbp 0xffff800020bc9a80 rbx 0x2 rdx 0 rcx 0x7 rax 0x3 r8 0xffffffff81979171 wsmux_do_ioctl+0x201 r9 0x7 r10 0x2fb0b98c8f01f8f9 r11 0x2fb0b98c8f01f8f9 r12 0xffff800000992a50 r13 0 r14 0xffff800020bc9c50 r15 0x3 rip 0xffffffff819796a6 wsmux_do_ioctl+0x736 cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff800020bc9a00 ss 0x10 wsmux_do_ioctl+0x736: movq %rax,0x10(%rdx,%r15,8) ddb{0}> show proc PROC (syz-executor6354) pid=32589 stat=onproc flags process=2 proc=4000000 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020b852d0,0xffffffff8234cb80 process=0xffff800020b3a9e8 user=0xffff800020bc4000, vmspace=0xfffffd806e813710 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 24508 215682 35806 0 2 0x2 syz-executor6354 24508 408664 35806 0 2 0x4000002 syz-executor6354 *24508 32589 35806 0 7 0x4000002 syz-executor6354 35806 298500 9999 0 3 0x10008a pause ksh 9999 69146 23351 0 3 0x92 select sshd 18165 53610 1 0 3 0x100083 ttyin getty 23351 224816 1 0 3 0x80 select sshd 68193 484510 13284 74 3 0x100092 bpf pflogd 13284 379448 1 0 3 0x80 netio pflogd 77699 160857 82947 73 7 0x100090 syslogd 82947 330506 1 0 3 0x100082 netio syslogd 55070 440467 1 77 3 0x100090 poll dhclient 26035 217244 1 0 3 0x80 poll dhclient 65545 381487 0 0 3 0x14200 pgzero zerothread 79270 488104 0 0 3 0x14200 aiodoned aiodoned 36420 109677 0 0 3 0x14200 syncer update 85873 393036 0 0 3 0x14200 cleaner cleaner 89703 498244 0 0 3 0x14200 reaper reaper 66249 289612 0 0 3 0x14200 pgdaemon pagedaemon 67740 282609 0 0 3 0x14200 bored crynlk 96724 57019 0 0 3 0x14200 bored crypto 4327 252697 0 0 3 0x40014200 acpi0 acpi0 87185 18435 0 0 3 0x40014200 idle1 55671 201811 0 0 3 0x14200 bored softnet 14497 34778 0 0 3 0x14200 bored systqmp 46546 36674 0 0 3 0x14200 bored systq 65205 399964 0 0 3 0x40014200 bored softclock 88544 419445 0 0 3 0x40014200 idle0 36065 4001 0 0 3 0x14200 bored smr 1 378194 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 24508 (syz-executor6354) thread 0xffff800020b84718 (32589) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8236ed40) #0 witness_lock+0x52e sys/kern/subr_witness.c:1161 #1 syscall+0x43a mi_syscall sys/sys/syscall_mi.h:91 [inline] #1 syscall+0x43a sys/arch/amd64/amd64/trap.c:574 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9451 6382K 6390K 78643K 10540 0 0 pcb 25 9K 9K 78643K 57 0 0 rtable 61 2K 2K 78643K 125 0 0 ifaddr 25 7K 7K 78643K 26 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1467 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1176 74K 74K 78643K 1181 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 1 0K 0K 78643K 1 0 0 proc 52 50K 58K 78643K 279 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 11 0K 0K 78643K 11 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 179 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 56 3K 3K 78643K 767 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 4 0K 0K 78643K 4 0 0 temp 39 2712K 2776K 78643K 1985 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 2 0 0 1 0 1 1 0 8 0 inpcbpl 280 29 0 23 1 0 1 1 0 8 0 plimitpl 152 14 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 syncache 264 5 0 5 1 0 1 1 0 8 1 tcpcb 544 8 0 5 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 8 0 0 1 0 1 1 0 8 0 pfstkey 112 8 0 0 1 0 1 1 0 8 0 pfstate 328 8 0 0 1 0 1 1 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 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1396 0 18 45 0 45 45 0 8 0 ffsino 272 1396 0 18 92 0 92 92 0 8 0 nchpl 144 1568 0 32 57 0 57 57 0 8 0 uvmvnodes 72 1406 0 0 26 0 26 26 0 8 0 vnodes 200 1406 0 0 74 0 74 74 0 8 0 namei 1024 3560 0 3560 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 2321 0 2321 2 1 1 2 0 8 1 sigapl 432 205 0 193 2 0 2 2 0 8 0 futexpl 56 1 0 1 1 0 1 1 0 8 1 knotepl 112 5 0 0 1 0 1 1 0 8 0 kqueuepl 104 1 0 0 1 0 1 1 0 8 0 pipepl 112 134 0 127 2 1 1 1 0 8 0 fdescpl 488 206 0 193 3 0 3 3 0 8 0 filepl 152 962 0 914 2 0 2 2 0 8 0 lockfpl 104 8 0 8 2 1 1 1 0 8 1 lockfspl 48 4 0 4 2 1 1 1 0 8 1 sessionpl 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 52 0 43 1 0 1 1 0 8 0 zombiepl 144 193 0 193 2 1 1 1 0 8 1 processpl 840 221 0 193 4 0 4 4 0 8 0 procpl 600 223 0 193 3 0 3 3 0 8 0 sockpl 384 73 0 55 2 0 2 2 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 72 0 0 9 0 9 9 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 98 0 0 6 0 6 6 0 8 0 bufpl 256 2138 0 263 118 0 118 118 0 8 0 anonpl 16 19293 0 18043 8 2 6 7 0 125 0 amapchunkpl 152 556 0 515 2 0 2 2 0 158 0 amappl16 192 82 0 77 1 0 1 1 0 8 0 amappl14 176 37 0 34 1 0 1 1 0 8 0 amappl12 160 8 0 8 1 0 1 1 0 8 1 amappl11 152 29 0 14 1 0 1 1 0 8 0 amappl10 144 60 0 58 1 0 1 1 0 8 0 amappl9 136 422 0 421 1 0 1 1 0 8 0 amappl8 128 101 0 96 1 0 1 1 0 8 0 amappl7 120 20 0 18 1 0 1 1 0 8 0 amappl6 112 46 0 42 1 0 1 1 0 8 0 amappl5 104 120 0 107 1 0 1 1 0 8 0 amappl4 96 437 0 414 1 0 1 1 0 8 0 amappl3 88 104 0 98 1 0 1 1 0 8 0 amappl2 80 652 0 606 1 0 1 1 0 8 0 amappl1 72 13333 0 12898 16 6 10 16 0 8 0 amappl 80 428 0 405 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 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 206 0 193 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 206 0 193 1 0 1 1 0 8 0 vmmpekpl 168 5583 0 5562 2 0 2 2 0 8 1 vmmpepl 168 27254 0 26445 50 14 36 50 0 357 0 vmsppl 360 205 0 193 2 0 2 2 0 8 0 pdppl 4096 420 0 386 6 0 6 6 0 8 0 pvpl 32 80248 0 77231 32 4 28 28 0 265 3 pmappl 232 205 0 193 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 249 0 4 7 0 7 7 0 8 0 ddb{0}>