uvm_fault(0xfffffd807f00d438, 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(0xfffffd807f00d438, 0x8f, 0, 1) -> e wsmuxclose(4500,1,2000,ffff800020b43530) at wsmuxclose+0x75 wsmux_do_close sys/dev/wscons/wsmux.c:307 [inline] wsmuxclose(4500,1,2000,ffff800020b43530) at wsmuxclose+0x75 sys/dev/wscons/wsmux.c:277 end trace frame: 0xffff800020c22c50, count: 0 ddb{1}> trace wsmuxclose(4500,1,2000,ffff800020b43530) at wsmuxclose+0x75 wsmux_do_close sys/dev/wscons/wsmux.c:307 [inline] wsmuxclose(4500,1,2000,ffff800020b43530) at wsmuxclose+0x75 sys/dev/wscons/wsmux.c:277 spec_close(ffff800020c22c60) at spec_close+0x3a0 sys/kern/spec_vnops.c:553 VOP_CLOSE(fffffd807ab88198,1,fffffd807f7c7b40,ffff800020b43530) at VOP_CLOSE+0x70 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80691e80b0,ffff800020b43530) at vn_closefile+0x160 vn_close sys/kern/vfs_vnops.c:289 [inline] vn_closefile(fffffd80691e80b0,ffff800020b43530) at vn_closefile+0x160 sys/kern/vfs_vnops.c:575 fdrop(fffffd80691e80b0,ffff800020b43530) at fdrop+0xe1 sys/kern/kern_descrip.c:1260 closef(fffffd80691e80b0,ffff800020b43530) at closef+0x129 sys/kern/kern_descrip.c:1244 fdfree(ffff800020b43530) at fdfree+0xe8 sys/kern/kern_descrip.c:1176 exit1(ffff800020b43530,0,1) at exit1+0x2ee sys/kern/kern_exit.c:194 sys_exit(ffff800020b43530,ffff800020c22f60,ffff800020c22f50) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff800020c23000) at syscall+0x5ac mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c23000) at syscall+0x5ac sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,1,0,1,0,7f7ffffdcd54) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdcd20, count: -11 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020c22be0 rbx 0 rdx 0xffffffff81f569b0 apollo_udma100_tim+0x13613 rcx 0 rax 0 r8 0xffffffff81009b65 setrunnable+0x95 r9 0x5 r10 0xeb69cc9d84985948 r11 0xb65845bccb4df51d r12 0xffff800000026d00 r13 0 r14 0xffff800000026d50 r15 0xffffffffffffffff rip 0xffffffff81ac9b35 wsmuxclose+0x75 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020c22ba0 ss 0x10 wsmuxclose+0x75: cmpq %r12,0x90(%r15) ddb{1}> show proc PROC (syz-executor.1) pid=132511 stat=onproc flags process=1008 proc=2000 pri=0, usrpri=64, nice=20 forw=0xffffffffffffffff, list=0xffff800020b42978,0xffff800020b424d8 process=0xffff800020b453c0 user=0xffff800020c1e000, vmspace=0xfffffd807f00d438 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20283 515701 65508 0 2 0 syz-executor.0 20283 175872 65508 0 7 0x4000000 syz-executor.0 81221 317889 0 0 3 0x14200 bored sosplice 59077 54944 5329 0 3 0x82 nanosleep syz-executor.1 65508 477669 5329 0 3 0x82 nanosleep syz-executor.0 5329 460371 50110 0 3 0x82 thrsleep syz-fuzzer 5329 495931 50110 0 3 0x4000082 thrsleep syz-fuzzer 5329 387351 50110 0 3 0x4000082 thrsleep syz-fuzzer 5329 90036 50110 0 3 0x4000082 thrsleep syz-fuzzer 5329 137327 50110 0 3 0x4000082 thrsleep syz-fuzzer 5329 224006 50110 0 3 0x4000082 thrsleep syz-fuzzer 5329 152887 50110 0 3 0x4000082 thrsleep syz-fuzzer 5329 497307 50110 0 3 0x4000082 thrsleep syz-fuzzer 5329 307298 50110 0 3 0x4000082 thrsleep syz-fuzzer 5329 363277 50110 0 3 0x4000082 kqread syz-fuzzer 5329 322472 50110 0 3 0x4000082 thrsleep syz-fuzzer 50110 390183 24061 0 3 0x10008a pause ksh 24061 142549 48200 0 3 0x92 select sshd 27651 449219 1 0 3 0x100083 ttyin getty 48200 437109 1 0 3 0x80 select sshd 67582 1350 66997 73 2 0x100090 syslogd 66997 154296 1 0 3 0x100082 netio syslogd 48989 178123 1 77 3 0x100090 poll dhclient 14491 179001 1 0 3 0x80 poll dhclient 6813 499612 0 0 2 0x14200 zerothread 4823 231892 0 0 3 0x14200 aiodoned aiodoned 54651 4929 0 0 3 0x14200 syncer update 63806 140845 0 0 3 0x14200 cleaner cleaner 25757 430624 0 0 3 0x14200 reaper reaper 16680 412942 0 0 3 0x14200 pgdaemon pagedaemon 2304 410777 0 0 3 0x14200 bored crynlk 41518 259054 0 0 3 0x14200 bored crypto 53525 288901 0 0 3 0x40014200 acpi0 acpi0 1495 419729 0 0 3 0x40014200 idle1 89417 78542 0 0 3 0x14200 bored softnet 43716 496360 0 0 3 0x14200 bored systqmp 88653 254763 0 0 3 0x14200 bored systq 79021 157864 0 0 3 0x40014200 bored softclock 40208 457612 0 0 3 0x40014200 idle0 1 319093 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 9497 6357K 6357K 78643K 10691 0 0 pcb 25 9K 10K 78643K 150 0 0 rtable 100 3K 4K 78643K 221 0 0 ifaddr 48 11K 12K 78643K 75 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 2K 78643K 24 0 0 iov 0 0K 16K 78643K 32 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1200 75K 76K 78643K 1388 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 9 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 36 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1792 194K 288K 78643K 12592 0 0 file desc 6 17K 25K 78643K 295 0 0 sigio 0 0K 0K 78643K 3 0 0 proc 41 38K 58K 78643K 292 0 0 subproc 64 65538K 67586K 78643K 68 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 14 0 0 in_multi 33 2K 2K 78643K 38 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 66 291K 291K 78643K 66 0 0 exec 0 0K 1K 78643K 186 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 84 20K 21K 78643K 1693 0 0 UVM aobj 28 2K 2K 78643K 30 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 12 0 0 NDP 9 0K 0K 78643K 20 0 0 temp 137 2360K 2426K 78643K 3568 0 0 kqueue 0 0K 0K 78643K 2 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 4 0 0 1 0 1 1 0 8 0 inpcbpl 280 138 0 131 1 0 1 1 0 8 0 plimitpl 152 15 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 41 0 1 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 44 0 40 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 6 0 6 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 185 0 0 12 0 12 12 0 8 0 art_table 32 186 0 0 2 0 2 2 0 8 0 art_node 16 40 0 6 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 32 0 22 1 0 1 1 0 8 0 shmpl 112 28 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1985 0 576 46 0 46 46 0 8 0 ffsino 272 1985 0 576 95 0 95 95 0 8 0 nchpl 144 2595 0 975 61 0 61 61 0 8 0 uvmvnodes 72 2056 0 0 38 0 38 38 0 8 0 vnodes 200 2056 0 0 109 0 109 109 0 8 0 namei 1024 6864 0 6864 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 6780 0 6780 9 8 1 6 0 8 1 sigapl 432 463 0 449 2 0 2 2 0 8 0 futexpl 56 3280 0 3280 1 0 1 1 0 8 1 knotepl 112 123 0 96 2 1 1 2 0 8 0 kqueuepl 104 78 0 76 1 0 1 1 0 8 0 pipepl 112 342 0 321 1 0 1 1 0 8 0 fdescpl 488 464 0 449 3 1 2 3 0 8 0 filepl 152 2635 0 2535 6 1 5 5 0 8 1 lockfpl 104 115 0 115 2 1 1 1 0 8 1 lockfspl 32 149 0 149 2 1 1 1 0 8 1 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 21 0 11 1 0 1 1 0 8 0 ucredpl 96 545 0 538 1 0 1 1 0 8 0 zombiepl 144 450 0 449 1 0 1 1 0 8 0 processpl 840 479 0 449 4 0 4 4 0 8 0 procpl 600 1109 0 1068 4 0 4 4 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 384 260 0 241 4 2 2 3 0 8 0 mcl64k 65536 229 0 0 29 0 29 29 0 8 0 mcl16k 16384 1 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 3 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 104 0 0 12 0 12 12 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 334 0 0 19 0 19 19 0 8 0 bufpl 256 5919 0 1013 307 0 307 307 0 8 0 anonpl 16 51502 0 43680 46 6 40 40 0 125 8 amapchunkpl 152 2414 0 2326 8 0 8 8 0 158 3 amappl16 192 1981 0 1563 29 4 25 25 0 8 4 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 3 0 3 2 2 0 1 0 8 0 amappl13 168 302 0 295 1 0 1 1 0 8 0 amappl12 160 4 0 4 1 1 0 1 0 8 0 amappl11 152 179 0 170 1 0 1 1 0 8 0 amappl10 144 61 0 58 1 0 1 1 0 8 0 amappl9 136 357 0 353 1 0 1 1 0 8 0 amappl8 128 140 0 123 1 0 1 1 0 8 0 amappl7 120 317 0 308 1 0 1 1 0 8 0 amappl6 112 63 0 51 1 0 1 1 0 8 0 amappl5 104 110 0 100 1 0 1 1 0 8 0 amappl4 96 272 0 249 2 1 1 2 0 8 0 amappl3 88 147 0 140 1 0 1 1 0 8 0 amappl2 80 3403 0 3343 2 0 2 2 0 8 0 amappl1 72 18174 0 17731 24 14 10 19 0 8 0 amappl 72 1321 0 1286 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 29 0 2 1 0 1 1 0 8 0 uaddrrnd 24 464 0 449 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 464 0 449 1 0 1 1 0 8 0 vmmpekpl 168 7629 0 7606 2 0 2 2 0 8 0 vmmpepl 168 55224 0 53765 84 17 67 72 0 357 3 vmsppl 360 463 0 449 2 0 2 2 0 8 0 pdppl 4096 935 0 898 6 1 5 6 0 8 0 pvpl 32 170902 0 160061 122 14 108 108 0 265 20 pmappl 224 463 0 449 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 491 0 3 14 0 14 14 0 8 0