uvm_fault(0xfffffd807f00cb40, 0x8f, 0, 1) -> e kernel: page fault trap, code=0 Stopped at wsmuxclose+0x75: cmpq %r12,0x90(%r15) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd807f00cb40, 0x8f, 0, 1) -> e wsmuxclose(4500,81,2000,ffff800020b42720) at wsmuxclose+0x75 wsmux_do_close sys/dev/wscons/wsmux.c:307 [inline] wsmuxclose(4500,81,2000,ffff800020b42720) at wsmuxclose+0x75 sys/dev/wscons/wsmux.c:277 end trace frame: 0xffff800020bf3710, count: 0 ddb{1}> trace wsmuxclose(4500,81,2000,ffff800020b42720) at wsmuxclose+0x75 wsmux_do_close sys/dev/wscons/wsmux.c:307 [inline] wsmuxclose(4500,81,2000,ffff800020b42720) at wsmuxclose+0x75 sys/dev/wscons/wsmux.c:277 spec_close(ffff800020bf3720) at spec_close+0x3a0 sys/kern/spec_vnops.c:553 VOP_CLOSE(fffffd80770e0a00,81,fffffd807f7c7b40,ffff800020b42720) at VOP_CLOSE+0x70 sys/kern/vfs_vops.c:174 vn_closefile(fffffd806fcad5f0,ffff800020b42720) at vn_closefile+0x160 vn_close sys/kern/vfs_vnops.c:289 [inline] vn_closefile(fffffd806fcad5f0,ffff800020b42720) at vn_closefile+0x160 sys/kern/vfs_vnops.c:575 fdrop(fffffd806fcad5f0,ffff800020b42720) at fdrop+0xe1 sys/kern/kern_descrip.c:1260 closef(fffffd806fcad5f0,ffff800020b42720) at closef+0x129 sys/kern/kern_descrip.c:1244 fdfree(ffff800020b42720) at fdfree+0xe8 sys/kern/kern_descrip.c:1176 exit1(ffff800020b42720,0,1) at exit1+0x2ee sys/kern/kern_exit.c:194 sys_exit(ffff800020b42720,ffff800020bf3a20,ffff800020bf3a10) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff800020bf3ac0) at syscall+0x5ac mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020bf3ac0) at syscall+0x5ac sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,1,0,1,0,7f7ffffc1274) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc1240, count: -11 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020bf36a0 rbx 0 rdx 0xffffffff81f72fba cy_pio_rec+0x1f030 rcx 0 rax 0 r8 0 r9 0x1 r10 0xffffffff r11 0xb17dc4d85c9ce1e8 r12 0xffff800000026d00 r13 0 r14 0xffff800000026d50 r15 0xffffffffffffffff rip 0xffffffff8161f9e5 wsmuxclose+0x75 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020bf3660 ss 0x10 wsmuxclose+0x75: cmpq %r12,0x90(%r15) ddb{1}> show proc PROC (syz-executor.1) pid=270074 stat=onproc flags process=1008 proc=2000 pri=0, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b24bc0,0xffff800020b439f0 process=0xffff800020b446a0 user=0xffff800020bee000, vmspace=0xfffffd807f00cb40 estcpu=36, cpticks=81, pctcpu=0.29 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 61766 153581 67121 0 7 0 syz-executor.0 61766 389930 67121 0 2 0x4000000 syz-executor.0 67121 247932 86697 0 3 0x82 nanosleep syz-executor.0 37223 355572 86697 0 3 0x82 nanosleep syz-executor.1 86697 423612 68142 0 3 0x82 thrsleep syz-fuzzer 86697 134668 68142 0 3 0x4000082 thrsleep syz-fuzzer 86697 239196 68142 0 3 0x4000082 thrsleep syz-fuzzer 86697 190629 68142 0 3 0x4000082 thrsleep syz-fuzzer 86697 400224 68142 0 3 0x4000082 thrsleep syz-fuzzer 86697 179084 68142 0 3 0x4000082 thrsleep syz-fuzzer 86697 397220 68142 0 3 0x4000082 thrsleep syz-fuzzer 86697 151033 68142 0 3 0x4000082 thrsleep syz-fuzzer 86697 72382 68142 0 3 0x4000082 kqread syz-fuzzer 86697 404790 68142 0 3 0x4000082 thrsleep syz-fuzzer 68142 241030 87248 0 3 0x10008a pause ksh 87248 227484 94544 0 3 0x92 select sshd 69887 383195 1 0 3 0x100083 ttyin getty 94544 352661 1 0 3 0x80 select sshd 78285 41326 30810 73 2 0x100090 syslogd 30810 450693 1 0 3 0x100082 netio syslogd 58929 164892 1 77 3 0x100090 poll dhclient 16318 471512 1 0 3 0x80 poll dhclient 47146 368884 0 0 3 0x14200 pgzero zerothread 26935 297764 0 0 3 0x14200 aiodoned aiodoned 19809 349878 0 0 3 0x14200 syncer update 14785 413152 0 0 3 0x14200 cleaner cleaner 98098 456376 0 0 3 0x14200 reaper reaper 47354 499768 0 0 3 0x14200 pgdaemon pagedaemon 22894 440481 0 0 3 0x14200 bored crynlk 45533 486447 0 0 3 0x14200 bored crypto 46258 148311 0 0 3 0x40014200 acpi0 acpi0 74654 503308 0 0 3 0x40014200 idle1 16575 357756 0 0 3 0x14200 bored softnet 99807 125777 0 0 3 0x14200 bored systqmp 72806 271765 0 0 3 0x14200 bored systq 96315 362020 0 0 3 0x40014200 bored softclock 258 13500 0 0 3 0x40014200 idle0 1 427907 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9479 6358K 6358K 78643K 10682 0 0 pcb 30 10K 10K 78643K 220 0 0 rtable 100 3K 4K 78643K 332 0 0 ifaddr 43 11K 12K 78643K 87 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 2K 78643K 23 0 0 iov 0 0K 12K 78643K 29 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1194 75K 75K 78643K 1455 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 4 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 31 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1792 194K 288K 78643K 12592 0 0 file desc 6 17K 25K 78643K 391 0 0 sigio 0 0K 0K 78643K 2 0 0 proc 42 38K 70K 78643K 364 0 0 subproc 64 65538K 67586K 78643K 204 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 54 0 0 in_multi 33 2K 2K 78643K 90 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 60 265K 265K 78643K 60 0 0 exec 0 0K 1K 78643K 216 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 94 21K 29K 78643K 2006 0 0 UVM aobj 18 2K 2K 78643K 18 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 15 0 0 NDP 7 0K 0K 78643K 28 0 0 temp 103 2354K 2994K 78643K 3979 0 0 kqueue 0 0K 0K 78643K 6 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> 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 280 210 0 202 1 0 1 1 0 8 0 plimitpl 152 29 0 22 1 0 1 1 0 8 0 plcache 128 20 0 0 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 76 0 72 1 0 1 1 0 8 0 nd6 48 12 0 8 1 0 1 1 0 8 0 ppxss 1128 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 350 0 164 12 0 12 12 0 8 0 art_table 32 351 0 164 2 0 2 2 0 8 0 art_node 16 76 0 42 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semapl 112 29 0 19 1 0 1 1 0 8 0 shmpl 112 16 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2088 0 683 46 0 46 46 0 8 0 ffsino 272 2088 0 683 95 0 95 95 0 8 0 nchpl 144 2856 0 1256 61 0 61 61 0 8 0 uvmvnodes 72 2210 0 0 41 0 41 41 0 8 0 vnodes 200 2210 0 0 117 0 117 117 0 8 0 namei 1024 7991 0 7991 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 7422 0 7422 9 8 1 5 0 8 1 sigapl 432 547 0 533 2 0 2 2 0 8 0 futexpl 56 3973 0 3973 1 0 1 1 0 8 1 knotepl 112 208 0 181 2 1 1 2 0 8 0 kqueuepl 104 119 0 116 1 0 1 1 0 8 0 pipepl 112 418 0 397 4 3 1 2 0 8 0 fdescpl 488 548 0 533 3 1 2 3 0 8 0 filepl 152 3252 0 3140 7 2 5 5 0 8 0 lockfpl 104 111 0 110 3 2 1 1 0 8 0 lockfspl 32 134 0 133 3 2 1 1 0 8 0 sessionpl 112 21 0 11 1 0 1 1 0 8 0 pgrppl 48 31 0 21 1 0 1 1 0 8 0 ucredpl 96 839 0 832 1 0 1 1 0 8 0 zombiepl 144 534 0 533 2 1 1 1 0 8 0 processpl 840 562 0 533 4 0 4 4 0 8 0 procpl 600 1348 0 1309 4 0 4 4 0 8 0 srpgc 64 24 0 24 1 1 0 1 0 8 0 sockpl 384 379 0 355 4 1 3 3 0 8 0 mcl64k 65536 511 0 0 64 4 60 64 0 8 1 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 113 0 0 14 1 13 14 0 8 1 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 620 0 0 38 0 38 38 0 8 0 bufpl 256 5798 0 1021 299 0 299 299 0 8 0 anonpl 16 66290 0 58768 58 17 41 47 0 125 10 amapchunkpl 152 3096 0 2977 11 6 5 10 0 158 0 amappl16 192 2683 0 2309 45 25 20 30 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 9 0 8 2 1 1 1 0 8 0 amappl13 168 155 0 150 1 0 1 1 0 8 0 amappl12 160 20 0 17 1 0 1 1 0 8 0 amappl11 152 421 0 410 1 0 1 1 0 8 0 amappl10 144 63 0 60 2 1 1 1 0 8 0 amappl9 136 579 0 574 1 0 1 1 0 8 0 amappl8 128 154 0 132 1 0 1 1 0 8 0 amappl7 120 164 0 155 1 0 1 1 0 8 0 amappl6 112 57 0 48 1 0 1 1 0 8 0 amappl5 104 134 0 123 1 0 1 1 0 8 0 amappl4 96 274 0 251 2 1 1 2 0 8 0 amappl3 88 140 0 135 1 0 1 1 0 8 0 amappl2 80 4085 0 4021 2 0 2 2 0 8 0 amappl1 72 20395 0 19958 24 14 10 19 0 8 0 amappl 72 1593 0 1549 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 17 0 0 1 0 1 1 0 8 0 uaddrrnd 24 548 0 533 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 548 0 533 1 0 1 1 0 8 0 vmmpekpl 168 8401 0 8378 2 0 2 2 0 8 0 vmmpepl 168 66651 0 65227 92 26 66 72 0 357 4 vmsppl 360 547 0 533 2 0 2 2 0 8 0 pdppl 4096 1103 0 1066 6 1 5 6 0 8 0 pvpl 32 208766 0 197708 143 26 117 123 0 265 27 pmappl 224 547 0 533 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 540 0 9 16 0 16 16 0 8 0