uvm_fault(0xfffffd807f00c870, 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(0xfffffd807f00c870, 0x8f, 0, 1) -> e wsmuxclose(4501,82,2000,ffff800020b42978) at wsmuxclose+117 end trace frame: 0xffff800020b79780, count: 0 ddb{1}> trace wsmuxclose(4501,82,2000,ffff800020b42978) at wsmuxclose+117 spec_close(ffff800020b79790) at spec_close+928 VOP_CLOSE(fffffd806feb7ad8,82,fffffd807f7c7a80,ffff800020b42978) at VOP_CLOSE+112 vn_closefile(fffffd806939be58,ffff800020b42978) at vn_closefile+352 fdrop(fffffd806939be58,ffff800020b42978) at fdrop+225 closef(fffffd806939be58,ffff800020b42978) at closef+297 fdfree(ffff800020b42978) at fdfree+232 exit1(ffff800020b42978,0,1) at exit1+750 sys_exit(ffff800020b42978,ffff800020b79a90,ffff800020b79a80) at sys_exit+23 syscall(ffff800020b79b30) at syscall+1452 Xsyscall(0,1,0,1,0,7f7ffffdf724) at Xsyscall+296 end of kernel end trace frame: 0x7f7ffffdf6f0, count: -11 ddb{1}> show registers rdi 0 rsi 0 rbp 18446603336770098960 rbx 0 rdx 18446744071594904670 apollo_pio_rec+42389 rcx 0 rax 0 r8 18446744071583113283 kprintf+387 r9 1 r10 37 r11 4213746886032462828 r12 18446603336221355776 r13 0 r14 18446603336221355856 r15 18446744073709551615 rip 18446744071586934213 wsmuxclose+117 cs 8 rflags 66118 __ALIGN_SIZE+62022 rsp 18446603336770098896 ss 16 wsmuxclose+117: cmpq %r12,144(%r15) ddb{1}> show proc PROC (syz-executor.1) pid=99105 stat=onproc flags process=1008 proc=2000 pri=0, usrpri=73, nice=20 forw=0xffffffffffffffff, list=0xffff800020b42720,0xffff800020b42028 process=0xffff800020b45078 user=0xffff800020b74000, vmspace=0xfffffd807f00c870 estcpu=23, cpticks=1, pctcpu=0.2 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 98440 269007 20263 0 2 0 syz-executor.0 98440 293397 20263 0 2 0x4000000 syz-executor.0 18878 27706 1 0 3 0x100083 ttyin getty 92627 262948 0 0 3 0x14200 bored sosplice 23997 150265 32177 0 2 0x482 syz-executor.1 20263 77199 32177 0 7 0x482 syz-executor.0 32177 49470 71931 0 3 0x82 thrsleep syz-fuzzer 32177 358059 71931 0 3 0x4000082 thrsleep syz-fuzzer 32177 437426 71931 0 3 0x4000082 thrsleep syz-fuzzer 32177 146448 71931 0 3 0x4000082 thrsleep syz-fuzzer 32177 78777 71931 0 3 0x4000082 thrsleep syz-fuzzer 32177 192916 71931 0 3 0x4000082 thrsleep syz-fuzzer 32177 321968 71931 0 3 0x4000082 thrsleep syz-fuzzer 32177 480923 71931 0 3 0x4000082 thrsleep syz-fuzzer 32177 424357 71931 0 3 0x4000082 kqread syz-fuzzer 32177 98815 71931 0 3 0x4000082 thrsleep syz-fuzzer 32177 228847 71931 0 2 0x4000482 syz-fuzzer 71931 117925 36384 0 3 0x10008a pause ksh 36384 153216 64763 0 3 0x92 select sshd 64763 125119 1 0 3 0x80 select sshd 57975 9792 43625 73 2 0x100090 syslogd 43625 241899 1 0 3 0x100082 netio syslogd 59304 172425 1 77 3 0x100090 poll dhclient 87976 451134 1 0 3 0x80 poll dhclient 92494 178241 0 0 2 0x14200 zerothread 4262 258161 0 0 3 0x14200 aiodoned aiodoned 56839 481695 0 0 2 0x14200 update 19154 5548 0 0 3 0x14200 cleaner cleaner 92342 362630 0 0 3 0x14200 reaper reaper 21137 241455 0 0 3 0x14200 pgdaemon pagedaemon 29001 307914 0 0 3 0x14200 bored crynlk 33226 221050 0 0 3 0x14200 bored crypto 78511 109288 0 0 3 0x40014200 acpi0 acpi0 91256 463107 0 0 3 0x40014200 idle1 21259 287449 0 0 3 0x14200 bored softnet 59889 77140 0 0 2 0x14200 systqmp 85432 323390 0 0 3 0x14200 bored systq 25518 99346 0 0 3 0x40014200 bored softclock 8006 494387 0 0 3 0x40014200 idle0 1 479322 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 9524 6377K 6377K 78643K 11353 0 0 pcb 23 9K 11K 78643K 1282 0 0 rtable 100 3K 4K 78643K 400 0 0 ifaddr 56 13K 14K 78643K 187 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 2K 78643K 32 0 0 iov 0 0K 24K 78643K 247 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1208 76K 76K 78643K 2722 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 41 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 303 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1792 194K 288K 78643K 12592 0 0 file desc 6 17K 25K 78643K 2289 0 0 sigio 0 0K 0K 78643K 67 0 0 proc 42 38K 58K 78643K 567 0 0 subproc 64 65538K 67586K 78643K 93 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 315 0 0 in_multi 33 2K 2K 78643K 116 0 0 ether_multi 1 0K 0K 78643K 9 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 90 397K 397K 78643K 90 0 0 exec 0 0K 1K 78643K 368 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 100 21K 30K 78643K 8372 0 0 UVM aobj 130 5K 5K 78643K 143 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 83 0 0 NDP 11 0K 0K 78643K 51 0 0 temp 163 2367K 2438K 78643K 8886 0 0 kqueue 0 0K 0K 78643K 25 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 1118 0 1111 1 0 1 1 0 8 0 plimitpl 152 34 0 27 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 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpcb 544 430 0 426 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 swfcl 56 1 0 0 1 0 1 1 0 8 0 ppxss 1128 26 0 26 11 10 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 34 0 12 1 0 1 1 0 8 0 semapl 112 301 0 291 1 0 1 1 0 8 0 shmpl 112 141 0 13 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5936 0 4504 47 0 47 47 0 8 0 ffsino 272 5936 0 4504 96 0 96 96 0 8 0 nchpl 144 9542 0 7915 61 0 61 61 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 200 5926 0 0 312 0 312 312 0 8 0 namei 1024 29491 0 29491 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 5 0 5 4 3 1 1 0 8 1 scxspl 192 24393 0 24393 10 9 1 7 0 8 1 sigapl 432 2461 0 2447 2 0 2 2 0 8 0 futexpl 56 26212 0 26212 1 0 1 1 0 8 1 knotepl 112 612 0 585 5 4 1 2 0 8 0 kqueuepl 104 739 0 737 1 0 1 1 0 8 0 pipepl 112 1534 0 1515 5 4 1 2 0 8 0 fdescpl 488 2462 0 2447 3 1 2 3 0 8 0 filepl 152 15878 0 15782 9 4 5 6 0 8 1 lockfpl 104 668 0 668 3 2 1 1 0 8 1 lockfspl 32 1207 0 1207 3 2 1 1 0 8 1 sessionpl 112 21 0 11 1 0 1 1 0 8 0 pgrppl 48 60 0 50 1 0 1 1 0 8 0 ucredpl 96 4700 0 4693 1 0 1 1 0 8 0 zombiepl 144 2448 0 2447 3 2 1 1 0 8 0 processpl 840 2477 0 2447 4 0 4 4 0 8 0 procpl 600 7691 0 7650 4 0 4 4 0 8 0 sosppl 128 29 0 29 6 6 0 1 0 8 0 sockpl 384 2325 0 2308 6 3 3 4 0 8 1 mcl64k 65536 372 0 0 47 14 33 47 0 8 1 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 15 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 123 0 0 14 0 14 14 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 601 0 0 29 0 29 29 0 8 0 bufpl 256 8582 0 1610 436 0 436 436 0 8 0 anonpl 16 237156 0 229442 116 81 35 48 0 125 0 amapchunkpl 152 14683 0 14593 30 25 5 9 0 158 0 amappl16 192 11244 0 10835 106 85 21 33 0 8 0 amappl15 184 1136 0 1134 2 1 1 1 0 8 0 amappl14 176 1143 0 1139 2 1 1 1 0 8 0 amappl13 168 29 0 26 1 0 1 1 0 8 0 amappl12 160 6 0 6 1 1 0 1 0 8 0 amappl11 152 1321 0 1311 1 0 1 1 0 8 0 amappl10 144 59 0 58 2 1 1 1 0 8 0 amappl9 136 1494 0 1489 1 0 1 1 0 8 0 amappl8 128 174 0 139 2 0 2 2 0 8 0 amappl7 120 37 0 32 1 0 1 1 0 8 0 amappl6 112 1191 0 1183 1 0 1 1 0 8 0 amappl5 104 149 0 137 1 0 1 1 0 8 0 amappl4 96 306 0 281 2 1 1 2 0 8 0 amappl3 88 348 0 342 1 0 1 1 0 8 0 amappl2 80 22402 0 22342 2 0 2 2 0 8 0 amappl1 72 63766 0 63332 24 14 10 19 0 8 0 amappl 72 7916 0 7880 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 64 142 0 13 3 0 3 3 0 8 0 uaddrrnd 24 2462 0 2447 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2462 0 2447 1 0 1 1 0 8 0 vmmpekpl 168 23728 0 23706 2 0 2 2 0 8 0 vmmpepl 168 265888 0 264427 141 76 65 75 0 357 1 vmsppl 360 2461 0 2447 2 0 2 2 0 8 0 pdppl 4096 4931 0 4894 6 1 5 6 0 8 0 pvpl 32 675398 0 664103 226 124 102 125 0 265 10 pmappl 224 2461 0 2447 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 654 0 18 19 0 19 19 0 8 0