login: uvm_fault(0xfffffd807f00d2d0, 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(0xfffffd807f00d2d0, 0x8f, 0, 1) -> e wsmuxclose(4501,1,2000,ffff800020b42018) at wsmuxclose+117 end trace frame: 0xffff800020b79230, count: 0 ddb{0}> trace wsmuxclose(4501,1,2000,ffff800020b42018) at wsmuxclose+117 spec_close(ffff800020b79240) at spec_close+928 VOP_CLOSE(fffffd80783dd828,1,fffffd807f7c7900,ffff800020b42018) at VOP_CLOSE+112 vn_closefile(fffffd806736e1e8,ffff800020b42018) at vn_closefile+352 fdrop(fffffd806736e1e8,ffff800020b42018) at fdrop+225 closef(fffffd806736e1e8,ffff800020b42018) at closef+297 fdfree(ffff800020b42018) at fdfree+232 exit1(ffff800020b42018,0,1) at exit1+750 sys_exit(ffff800020b42018,ffff800020b79540,ffff800020b79530) at sys_exit+23 syscall(ffff800020b795e0) at syscall+1452 Xsyscall(6,1,0,1,0,7f7ffffdc0e4) at Xsyscall+296 end of kernel end trace frame: 0x7f7ffffdc0b0, count: -11 ddb{0}> show registers rdi 0 rsi 0 rbp 18446603336770097600 rbx 0 rdx 18446744071595059005 apollo_udma133_tim+3720 rcx 0 rax 0 r8 0 r9 0 r10 18446603336770949392 r11 11539197007554588712 r12 18446603336221355776 r13 0 r14 18446603336221355856 r15 18446744073709551615 rip 18446744071591603813 wsmuxclose+117 cs 8 rflags 66118 __ALIGN_SIZE+62022 rsp 18446603336770097536 ss 16 wsmuxclose+117: cmpq %r12,144(%r15) ddb{0}> show proc PROC (syz-executor.1) pid=371419 stat=onproc flags process=1008 proc=2000 pri=0, usrpri=74, nice=20 forw=0xffffffffffffffff, list=0xffff800020b43530,0xffff800020b42730 process=0xffff800020b44d30 user=0xffff800020b74000, vmspace=0xfffffd807f00d2d0 estcpu=24, cpticks=3, pctcpu=1.2 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 22605 464908 4203 0 2 0 syz-executor.0 22605 212214 4203 0 7 0x4000080 syz-executor.0 56363 518160 1 0 3 0x100083 ttyin getty 43455 453424 0 0 3 0x14200 bored sosplice 95490 344687 14793 0 3 0x82 nanosleep syz-executor.1 4203 95596 14793 0 2 0x482 syz-executor.0 14793 439980 29253 0 3 0x82 thrsleep syz-fuzzer 14793 43718 29253 0 3 0x4000082 thrsleep syz-fuzzer 14793 409601 29253 0 3 0x4000082 thrsleep syz-fuzzer 14793 351580 29253 0 3 0x4000082 thrsleep syz-fuzzer 14793 225506 29253 0 3 0x4000082 thrsleep syz-fuzzer 14793 475627 29253 0 3 0x4000082 thrsleep syz-fuzzer 14793 390553 29253 0 3 0x4000082 thrsleep syz-fuzzer 14793 428018 29253 0 3 0x4000082 thrsleep syz-fuzzer 14793 8273 29253 0 3 0x4000082 thrsleep syz-fuzzer 14793 50145 29253 0 3 0x4000082 thrsleep syz-fuzzer 14793 111620 29253 0 3 0x4000082 thrsleep syz-fuzzer 14793 111368 29253 0 3 0x4000082 kqread syz-fuzzer 29253 400403 82778 0 3 0x10008a pause ksh 82778 409140 2579 0 3 0x92 select sshd 2579 380424 1 0 3 0x80 select sshd 82455 418781 68741 73 2 0x100090 syslogd 68741 215196 1 0 3 0x100082 netio syslogd 90289 448305 1 77 3 0x100090 poll dhclient 1502 130548 1 0 3 0x80 poll dhclient 4785 54826 0 0 3 0x14200 pgzero zerothread 38977 209177 0 0 3 0x14200 aiodoned aiodoned 21642 407005 0 0 3 0x14200 syncer update 53051 187892 0 0 3 0x14200 cleaner cleaner 56759 521260 0 0 3 0x14200 reaper reaper 24092 160270 0 0 3 0x14200 pgdaemon pagedaemon 709 475974 0 0 3 0x14200 bored crynlk 66251 245036 0 0 3 0x14200 bored crypto 82749 357941 0 0 3 0x40014200 acpi0 acpi0 39027 230644 0 0 3 0x40014200 idle1 225 167299 0 0 3 0x14200 bored softnet 36579 503750 0 0 3 0x14200 bored systqmp 11790 55270 0 0 3 0x14200 bored systq 95960 184698 0 0 3 0x40014200 bored softclock 34508 219329 0 0 3 0x40014200 idle0 1 57850 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 9475 6350K 6358K 78643K 10573 0 0 pcb 23 9K 11K 78643K 99 0 0 rtable 97 3K 3K 78643K 171 0 0 ifaddr 41 10K 10K 78643K 41 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 2K 78643K 15 0 0 iov 0 0K 4K 78643K 10 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1198 75K 75K 78643K 1242 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 9 0K 0K 78643K 9 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1792 194K 288K 78643K 12592 0 0 file desc 6 17K 25K 78643K 76 0 0 proc 41 38K 58K 78643K 269 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 16 0 0 in_multi 33 2K 2K 78643K 41 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 42 185K 185K 78643K 42 0 0 exec 0 0K 1K 78643K 170 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 81 20K 20K 78643K 956 0 0 UVM aobj 2 2K 2K 78643K 2 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 4 0 0 NDP 7 0K 0K 78643K 11 0 0 temp 96 2353K 2417K 78643K 2929 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 52 0 44 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 13 0 9 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 186 0 0 12 0 12 12 0 8 0 art_table 32 187 0 0 2 0 2 2 0 8 0 art_node 16 40 0 6 1 0 1 1 0 8 0 semapl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1547 0 138 46 0 46 46 0 8 0 ffsino 272 1547 0 138 95 0 95 95 0 8 0 nchpl 144 1850 0 226 61 0 61 61 0 8 0 uvmvnodes 72 1594 0 0 29 0 29 29 0 8 0 vnodes 200 1594 0 0 84 0 84 84 0 8 0 namei 1024 4458 0 4458 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 4349 0 4349 7 6 1 6 0 8 1 sigapl 432 245 0 231 2 0 2 2 0 8 0 futexpl 56 684 0 684 1 0 1 1 0 8 1 knotepl 112 64 0 37 2 0 2 2 0 8 1 kqueuepl 104 3 0 1 1 0 1 1 0 8 0 pipepl 112 150 0 129 2 1 1 1 0 8 0 fdescpl 488 246 0 231 3 0 3 3 0 8 1 filepl 152 1232 0 1132 6 1 5 5 0 8 1 lockfpl 104 40 0 40 2 1 1 1 0 8 1 lockfspl 32 114 0 114 2 1 1 1 0 8 1 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 20 0 10 1 0 1 1 0 8 0 ucredpl 96 106 0 99 1 0 1 1 0 8 0 zombiepl 144 232 0 231 2 1 1 1 0 8 0 processpl 840 261 0 231 4 0 4 4 0 8 0 procpl 600 381 0 339 4 0 4 4 0 8 0 sosppl 128 3 0 3 1 0 1 1 0 8 1 sockpl 384 132 0 114 4 0 4 4 0 8 2 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 101 0 0 13 0 13 13 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 125 0 0 7 0 7 7 0 8 0 bufpl 256 5268 0 1013 266 0 266 266 0 8 0 anonpl 16 29405 0 22445 29 1 28 28 0 125 0 amapchunkpl 152 969 0 879 5 0 5 5 0 158 0 amappl16 192 715 0 357 18 0 18 18 0 8 0 amappl15 184 32 0 30 1 0 1 1 0 8 0 amappl14 176 8 0 6 2 1 1 1 0 8 0 amappl13 168 24 0 21 1 0 1 1 0 8 0 amappl12 160 45 0 40 1 0 1 1 0 8 0 amappl11 152 180 0 170 1 0 1 1 0 8 0 amappl10 144 57 0 54 2 1 1 1 0 8 0 amappl9 136 352 0 349 1 0 1 1 0 8 0 amappl8 128 136 0 119 1 0 1 1 0 8 0 amappl7 120 38 0 33 1 0 1 1 0 8 0 amappl6 112 53 0 47 1 0 1 1 0 8 0 amappl5 104 153 0 140 1 0 1 1 0 8 0 amappl4 96 282 0 258 2 1 1 2 0 8 0 amappl3 88 158 0 149 1 0 1 1 0 8 0 amappl2 80 1216 0 1153 2 0 2 2 0 8 0 amappl1 72 13455 0 13029 23 9 14 19 0 8 4 amappl 72 593 0 557 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 246 0 231 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 246 0 231 1 0 1 1 0 8 0 vmmpekpl 168 5672 0 5649 2 0 2 2 0 8 0 vmmpepl 168 32592 0 31212 82 14 68 70 0 357 8 vmsppl 360 245 0 231 2 0 2 2 0 8 0 pdppl 4096 499 0 462 6 0 6 6 0 8 1 pvpl 32 114378 0 103862 99 7 92 96 0 265 7 pmappl 224 245 0 231 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 412 0 3 12 0 12 12 0 8 0