uvm_fault(0xfffffd807f00d708, 0x8f, 0, 1) -> e kernel: page fault trap, code=0 Stopped at wsmuxclose+0x75: cmpq %r12,0x90(%r15) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f00d708, 0x8f, 0, 1) -> e wsmuxclose(4500,3,2000,ffff800020b43080) at wsmuxclose+117 end trace frame: 0xffff800020c3af00, count: 0 ddb{0}> trace wsmuxclose(4500,3,2000,ffff800020b43080) at wsmuxclose+117 spec_close(ffff800020c3af10) at spec_close+928 VOP_CLOSE(fffffd806641b880,3,fffffd807f7c7ba0,ffff800020b43080) at VOP_CLOSE+112 vn_closefile(fffffd8069406278,ffff800020b43080) at vn_closefile+352 fdrop(fffffd8069406278,ffff800020b43080) at fdrop+225 closef(fffffd8069406278,ffff800020b43080) at closef+297 fdfree(ffff800020b43080) at fdfree+232 exit1(ffff800020b43080,0,1) at exit1+750 sys_exit(ffff800020b43080,ffff800020c3b210,ffff800020c3b200) at sys_exit+23 syscall(ffff800020c3b2b0) at syscall+1452 Xsyscall(6,1,0,1,0,7f7ffffe05f4) at Xsyscall+296 end of kernel end trace frame: 0x7f7ffffe05c0, count: -11 ddb{0}> show registers rdi 0 rsi 0 rbp 18446603336770891408 rbx 0 rdx 18446744071594824305 apollo_udma100_tim+78092 rcx 0 rax 0 r8 18446744071586171701 setrunnable+149 r9 5 r10 7964921099952057536 r11 17988326051244563698 r12 18446603336221355264 r13 0 r14 18446603336221355344 r15 18446744073709551615 rip 18446744071582125445 wsmuxclose+117 cs 8 rflags 66118 __ALIGN_SIZE+62022 rsp 18446603336770891344 ss 0 wsmuxclose+117: cmpq %r12,144(%r15) ddb{0}> show proc PROC (syz-executor.1) pid=194852 stat=onproc flags process=1008 proc=2000 pri=0, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b42720,0xffff800020b42be0 process=0xffff800020b453c0 user=0xffff800020c36000, vmspace=0xfffffd807f00d708 estcpu=36, cpticks=6, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 92035 247618 97763 0 2 0 syz-executor.0 92035 386171 97763 0 7 0x4000000 syz-executor.0 36574 218807 0 0 3 0x14200 bored sosplice 81743 131765 95642 0 3 0x82 nanosleep syz-executor.1 97763 169868 95642 0 3 0x82 nanosleep syz-executor.0 95642 9385 1419 0 3 0x82 thrsleep syz-fuzzer 95642 43532 1419 0 3 0x4000082 thrsleep syz-fuzzer 95642 244038 1419 0 3 0x4000082 thrsleep syz-fuzzer 95642 506817 1419 0 3 0x4000082 thrsleep syz-fuzzer 95642 90216 1419 0 3 0x4000082 thrsleep syz-fuzzer 95642 359134 1419 0 3 0x4000082 thrsleep syz-fuzzer 95642 1233 1419 0 3 0x4000082 kqread syz-fuzzer 95642 67866 1419 0 3 0x4000082 thrsleep syz-fuzzer 95642 32831 1419 0 3 0x4000082 thrsleep syz-fuzzer 95642 133582 1419 0 3 0x4000082 thrsleep syz-fuzzer 1419 210810 25527 0 3 0x10008a pause ksh 25527 434468 35664 0 3 0x92 select sshd 27141 435732 1 0 3 0x100083 ttyin getty 35664 261299 1 0 3 0x80 select sshd 81372 35162 45103 73 2 0x100090 syslogd 45103 250855 1 0 3 0x100082 netio syslogd 85163 189437 1 77 3 0x100090 poll dhclient 91568 446744 1 0 3 0x80 poll dhclient 72117 139620 0 0 3 0x14200 pgzero zerothread 39905 383999 0 0 3 0x14200 aiodoned aiodoned 56277 268014 0 0 3 0x14200 syncer update 4462 192138 0 0 3 0x14200 cleaner cleaner 73364 285896 0 0 3 0x14200 reaper reaper 9865 491282 0 0 3 0x14200 pgdaemon pagedaemon 62111 362299 0 0 3 0x14200 bored crynlk 40343 476369 0 0 3 0x14200 bored crypto 78472 297758 0 0 3 0x40014200 acpi0 acpi0 66965 264432 0 0 3 0x40014200 idle1 60924 277798 0 0 3 0x14200 bored softnet 74046 392903 0 0 3 0x14200 bored systqmp 17057 252567 0 0 3 0x14200 bored systq 84934 420938 0 0 3 0x40014200 bored softclock 93587 56752 0 0 3 0x40014200 idle0 1 521925 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9479 6351K 6351K 78643K 10609 0 0 pcb 23 9K 10K 78643K 156 0 0 rtable 100 3K 4K 78643K 180 0 0 ifaddr 42 11K 11K 78643K 47 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 2K 78643K 15 0 0 iov 0 0K 16K 78643K 14 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1194 75K 75K 78643K 1306 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 12 0K 0K 78643K 30 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1792 194K 288K 78643K 12592 0 0 file desc 6 17K 25K 78643K 175 0 0 proc 41 38K 58K 78643K 275 0 0 subproc 64 65538K 67586K 78643K 70 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 30 0 0 in_multi 33 2K 2K 78643K 35 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 168 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 88 20K 29K 78643K 1308 0 0 UVM aobj 16 2K 2K 78643K 16 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 11 0 0 NDP 7 0K 0K 78643K 12 0 0 temp 104 2358K 2428K 78643K 3198 0 0 kqueue 0 0K 0K 78643K 4 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 4 0 0 1 0 1 1 0 8 0 inpcbpl 280 115 0 108 1 0 1 1 0 8 0 plimitpl 152 16 0 9 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 34 0 30 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 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 2 0 2 1 1 0 1 0 8 0 semapl 112 28 0 18 1 0 1 1 0 8 0 shmpl 112 14 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1737 0 333 46 0 46 46 0 8 0 ffsino 272 1737 0 333 95 0 95 95 0 8 0 nchpl 144 2187 0 563 61 0 61 61 0 8 0 uvmvnodes 72 1793 0 0 33 0 33 33 0 8 0 vnodes 200 1793 0 0 95 0 95 95 0 8 0 namei 1024 5668 0 5668 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 1 0 1 0 8 0 scxspl 192 5284 0 5284 7 6 1 6 0 8 1 sigapl 432 343 0 329 2 0 2 2 0 8 0 futexpl 56 1850 0 1850 1 0 1 1 0 8 1 knotepl 112 114 0 87 2 1 1 2 0 8 0 kqueuepl 104 66 0 64 1 0 1 1 0 8 0 pipepl 112 254 0 233 3 2 1 2 0 8 0 fdescpl 488 344 0 329 3 1 2 3 0 8 0 filepl 152 1965 0 1867 7 2 5 6 0 8 1 lockfpl 104 33 0 33 2 1 1 1 0 8 1 lockfspl 32 39 0 39 2 1 1 1 0 8 1 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 10 1 0 1 1 0 8 0 ucredpl 96 344 0 337 1 0 1 1 0 8 0 zombiepl 144 330 0 329 2 1 1 1 0 8 0 processpl 840 359 0 329 4 0 4 4 0 8 0 procpl 600 731 0 691 4 0 4 4 0 8 0 sosppl 128 4 0 4 1 0 1 1 0 8 1 sockpl 384 236 0 219 3 0 3 3 0 8 1 mcl64k 65536 1 0 0 1 0 1 1 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 mcl2k 2048 122 0 0 15 0 15 15 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 136 0 0 8 0 8 8 0 8 0 bufpl 256 5444 0 1015 277 0 277 277 0 8 0 anonpl 16 42811 0 35144 49 1 48 48 0 125 16 amapchunkpl 152 1812 0 1697 10 4 6 10 0 158 1 amappl16 192 1454 0 1066 32 4 28 32 0 8 8 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 6 0 3 2 1 1 1 0 8 0 amappl13 168 26 0 23 1 0 1 1 0 8 0 amappl12 160 14 0 12 1 0 1 1 0 8 0 amappl11 152 180 0 171 1 0 1 1 0 8 0 amappl10 144 143 0 137 2 1 1 1 0 8 0 amappl9 136 361 0 358 1 0 1 1 0 8 0 amappl8 128 135 0 118 1 0 1 1 0 8 0 amappl7 120 39 0 33 1 0 1 1 0 8 0 amappl6 112 57 0 48 1 0 1 1 0 8 0 amappl5 104 104 0 93 1 0 1 1 0 8 0 amappl4 96 338 0 315 1 0 1 1 0 8 0 amappl3 88 139 0 134 1 0 1 1 0 8 0 amappl2 80 2178 0 2116 2 0 2 2 0 8 0 amappl1 72 15916 0 15480 24 14 10 19 0 8 0 amappl 72 945 0 903 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 15 0 0 1 0 1 1 0 8 0 uaddrrnd 24 344 0 329 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 344 0 329 1 0 1 1 0 8 0 vmmpekpl 168 6600 0 6578 2 0 2 2 0 8 0 vmmpepl 168 42855 0 41428 91 17 74 74 0 357 11 vmsppl 360 343 0 329 2 0 2 2 0 8 0 pdppl 4096 695 0 658 6 1 5 6 0 8 0 pvpl 32 142270 0 131576 129 5 124 124 0 265 37 pmappl 224 343 0 329 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 425 0 3 13 0 13 13 0 8 0