uvm_fault(0xfffffd807f00c9d8, 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(0xfffffd807f00c9d8, 0x8f, 0, 1) -> e wsmuxclose(4500,41,2000,ffff800020b424c8) at wsmuxclose+0x75 wsmux_do_close sys/dev/wscons/wsmux.c:307 [inline] wsmuxclose(4500,41,2000,ffff800020b424c8) at wsmuxclose+0x75 sys/dev/wscons/wsmux.c:277 end trace frame: 0xffff800020c318b0, count: 0 ddb{1}> trace wsmuxclose(4500,41,2000,ffff800020b424c8) at wsmuxclose+0x75 wsmux_do_close sys/dev/wscons/wsmux.c:307 [inline] wsmuxclose(4500,41,2000,ffff800020b424c8) at wsmuxclose+0x75 sys/dev/wscons/wsmux.c:277 spec_close(ffff800020c318c0) at spec_close+0x3a0 sys/kern/spec_vnops.c:553 VOP_CLOSE(fffffd8064f452d8,41,fffffd807f7c7720,ffff800020b424c8) at VOP_CLOSE+0x70 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8068248ef8,ffff800020b424c8) at vn_closefile+0x160 vn_close sys/kern/vfs_vnops.c:289 [inline] vn_closefile(fffffd8068248ef8,ffff800020b424c8) at vn_closefile+0x160 sys/kern/vfs_vnops.c:575 fdrop(fffffd8068248ef8,ffff800020b424c8) at fdrop+0xe1 sys/kern/kern_descrip.c:1260 closef(fffffd8068248ef8,ffff800020b424c8) at closef+0x129 sys/kern/kern_descrip.c:1244 fdfree(ffff800020b424c8) at fdfree+0xe8 sys/kern/kern_descrip.c:1176 exit1(ffff800020b424c8,0,1) at exit1+0x2ee sys/kern/kern_exit.c:194 sys_exit(ffff800020b424c8,ffff800020c31bc0,ffff800020c31bb0) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff800020c31c60) at syscall+0x5ac mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c31c60) at syscall+0x5ac sys/arch/amd64/amd64/trap.c:574 Xsyscall(0,1,0,1,0,7f7fffff0574) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff0540, count: -11 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020c31840 rbx 0 rdx 0xffffffff81f72517 apollo_udma133_tim+0x13c2 rcx 0 rax 0 r8 0 r9 0x1 r10 0x3 r11 0x20aeebe4f137b601 r12 0xffff800000026d00 r13 0 r14 0xffff800000026d50 r15 0xffffffffffffffff rip 0xffffffff81e364d5 wsmuxclose+0x75 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020c31800 ss 0x10 wsmuxclose+0x75: cmpq %r12,0x90(%r15) ddb{1}> show proc PROC (syz-executor.1) pid=50208 stat=onproc flags process=1008 proc=2000 pri=0, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b42bd0,0xffff800020b43798 process=0xffff800020b44358 user=0xffff800020c2c000, vmspace=0xfffffd807f00c9d8 estcpu=36, cpticks=27, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 99376 47269 36653 0 7 0 syz-executor.0 99376 216014 36653 0 2 0x4000080 syz-executor.0 82362 287499 0 0 3 0x14200 bored sosplice 93049 236051 62496 0 3 0x82 nanosleep syz-executor.1 36653 273537 62496 0 3 0x82 nanosleep syz-executor.0 62496 123755 13894 0 3 0x82 kqread syz-fuzzer 62496 312447 13894 0 3 0x4000082 thrsleep syz-fuzzer 62496 7726 13894 0 3 0x4000082 thrsleep syz-fuzzer 62496 152225 13894 0 3 0x4000082 thrsleep syz-fuzzer 62496 199392 13894 0 3 0x4000082 thrsleep syz-fuzzer 62496 247582 13894 0 3 0x4000082 thrsleep syz-fuzzer 62496 289811 13894 0 3 0x4000082 thrsleep syz-fuzzer 62496 243912 13894 0 3 0x4000082 thrsleep syz-fuzzer 62496 386074 13894 0 3 0x4000082 thrsleep syz-fuzzer 62496 17554 13894 0 3 0x4000082 thrsleep syz-fuzzer 13894 279672 40200 0 3 0x10008a pause ksh 40200 15697 78278 0 3 0x92 select sshd 84207 104012 1 0 3 0x100083 ttyin getty 78278 77229 1 0 3 0x80 select sshd 22304 178024 68769 73 2 0x100090 syslogd 68769 424714 1 0 3 0x100082 netio syslogd 95 375586 1 77 3 0x100090 poll dhclient 51759 410638 1 0 3 0x80 poll dhclient 63578 344419 0 0 3 0x14200 pgzero zerothread 85136 323217 0 0 3 0x14200 aiodoned aiodoned 71168 172884 0 0 3 0x14200 syncer update 39515 406660 0 0 3 0x14200 cleaner cleaner 47911 147965 0 0 3 0x14200 reaper reaper 20142 331583 0 0 3 0x14200 pgdaemon pagedaemon 33863 100994 0 0 3 0x14200 bored crynlk 43689 32228 0 0 3 0x14200 bored crypto 67059 48440 0 0 3 0x40014200 acpi0 acpi0 6772 8564 0 0 3 0x40014200 idle1 73938 462132 0 0 3 0x14200 bored softnet 65173 269155 0 0 3 0x14200 bored systqmp 93827 464782 0 0 3 0x14200 bored systq 11661 115246 0 0 3 0x40014200 bored softclock 10567 391104 0 0 3 0x40014200 idle0 1 306871 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 9488 6361K 6369K 78643K 10668 0 0 pcb 23 9K 10K 78643K 211 0 0 rtable 100 3K 4K 78643K 349 0 0 ifaddr 46 11K 11K 78643K 85 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 2K 78643K 22 0 0 iov 0 0K 16K 78643K 27 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1203 75K 76K 78643K 1481 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 12 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 1K 1K 78643K 38 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1792 194K 288K 78643K 12592 0 0 file desc 6 17K 25K 78643K 347 0 0 sigio 0 0K 0K 78643K 7 0 0 proc 41 38K 58K 78643K 371 0 0 subproc 64 65538K 67586K 78643K 244 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 47 0 0 in_multi 33 2K 2K 78643K 104 0 0 ether_multi 1 0K 0K 78643K 3 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 208 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 86 20K 29K 78643K 1832 0 0 UVM aobj 24 2K 2K 78643K 24 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 6 0 0 NDP 8 0K 0K 78643K 29 0 0 temp 113 2359K 2425K 78643K 3917 0 0 kqueue 0 0K 0K 78643K 7 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 9 0 5 1 0 1 1 0 8 0 inpcbpl 280 197 0 190 1 0 1 1 0 8 0 plimitpl 152 25 0 18 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 86 0 46 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 10 0 10 1 1 0 1 0 8 0 tcpcb 544 71 0 67 1 0 1 1 0 8 0 nd6 48 14 0 10 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 390 0 205 12 0 12 12 0 8 0 art_table 32 391 0 205 2 0 2 2 0 8 0 art_node 16 85 0 51 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 7 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 36 0 26 1 0 1 1 0 8 0 shmpl 112 22 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1986 0 586 46 0 46 46 0 8 0 ffsino 272 1986 0 586 94 0 94 94 0 8 0 nchpl 144 2636 0 1029 61 0 61 61 0 8 0 uvmvnodes 72 2148 0 0 40 0 40 40 0 8 0 vnodes 200 2148 0 0 114 0 114 114 0 8 0 namei 1024 7313 0 7313 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 7006 0 7006 6 5 1 5 0 8 1 sigapl 432 500 0 486 2 0 2 2 0 8 0 futexpl 56 3318 0 3318 1 0 1 1 0 8 1 knotepl 112 221 0 194 2 1 1 2 0 8 0 kqueuepl 104 108 0 106 1 0 1 1 0 8 0 pipepl 112 356 0 337 2 1 1 1 0 8 0 fdescpl 488 501 0 486 3 1 2 3 0 8 0 filepl 152 2981 0 2878 6 1 5 5 0 8 0 lockfpl 104 87 0 87 3 2 1 1 0 8 1 lockfspl 32 86 0 86 3 2 1 1 0 8 1 sessionpl 112 22 0 12 1 0 1 1 0 8 0 pgrppl 48 32 0 22 1 0 1 1 0 8 0 ucredpl 96 673 0 666 1 0 1 1 0 8 0 zombiepl 144 487 0 486 2 1 1 1 0 8 0 processpl 840 516 0 486 4 0 4 4 0 8 0 procpl 600 1168 0 1128 4 0 4 4 0 8 0 srpgc 64 30 0 30 1 1 0 1 0 8 0 sosppl 128 2 0 2 2 2 0 1 0 8 0 sockpl 384 363 0 346 3 0 3 3 0 8 1 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 110 0 0 13 0 13 13 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 138 0 0 8 0 8 8 0 8 0 bufpl 256 5741 0 1017 296 0 296 296 0 8 0 anonpl 16 59579 0 51830 52 9 43 43 0 125 11 amapchunkpl 152 2674 0 2578 9 4 5 9 0 158 0 amappl16 192 2345 0 1936 40 12 28 31 0 8 7 amappl15 184 7 0 6 1 0 1 1 0 8 0 amappl14 176 158 0 155 2 1 1 1 0 8 0 amappl13 168 165 0 160 1 0 1 1 0 8 0 amappl12 160 16 0 14 2 1 1 1 0 8 0 amappl11 152 205 0 195 1 0 1 1 0 8 0 amappl10 144 64 0 62 2 1 1 1 0 8 0 amappl9 136 366 0 361 1 0 1 1 0 8 0 amappl8 128 168 0 149 1 0 1 1 0 8 0 amappl7 120 50 0 43 1 0 1 1 0 8 0 amappl6 112 205 0 197 1 0 1 1 0 8 0 amappl5 104 132 0 120 1 0 1 1 0 8 0 amappl4 96 405 0 379 2 1 1 2 0 8 0 amappl3 88 148 0 141 1 0 1 1 0 8 0 amappl2 80 3571 0 3510 2 0 2 2 0 8 0 amappl1 72 18962 0 18546 23 13 10 19 0 8 0 amappl 72 1408 0 1370 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 23 0 0 1 0 1 1 0 8 0 uaddrrnd 24 501 0 486 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 501 0 486 1 0 1 1 0 8 0 vmmpekpl 168 7756 0 7734 2 0 2 2 0 8 0 vmmpepl 168 61716 0 60295 87 16 71 71 0 357 8 vmsppl 360 500 0 486 2 0 2 2 0 8 0 pdppl 4096 1009 0 972 6 1 5 6 0 8 0 pvpl 32 194264 0 183443 125 11 114 114 0 265 26 pmappl 224 500 0 486 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 440 0 3 13 0 13 13 0 8 0