kernel: protection fault trap, code=0 Stopped at leavepgrp+0x8a: movq %r15,0x40(%r12) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace leavepgrp(ffff8000ffffb618) at leavepgrp+0x8a sys/kern/kern_proc.c:339 process_zap(ffff8000ffffb618) at process_zap+0x3d sys/kern/kern_exit.c:870 reaper(ffff80002a73d228) at reaper+0x270 sys/kern/kern_exit.c:521 end trace frame: 0x0, count: -3 ddb> show registers rdi 0xdeaf4152 rsi 0x11cf6 __ALIGN_SIZE+0x10cf6 rbp 0xffff80002a773bd0 rbx 0x40000 acpi_pdirpa+0x2be71 rdx 0 rcx 0 rax 0xffff80002a73d228 r8 0xffffffffffffffff r9 0 r10 0xafe06eb9f28b2ca8 r11 0x8a4827261cd99500 r12 0xdeaf4152deaf4152 r13 0xfffffd806f6c77e0 r14 0xffff8000ffffb618 r15 0xdeaf4152deaf4152 rip 0xffffffff812f64ca leavepgrp+0x8a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a773ba0 ss 0x10 leavepgrp+0x8a: movq %r15,0x40(%r12) ddb> show proc PROC (reaper) tid=9400 pid=61972 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a73cf90,0xffff80002a73d4d0 process=0xffff8000ffffc900 user=0xffff80002a76e000, vmspace=0xffffffff83986ec0 estcpu=0, cpticks=12, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 16831 372406 23958 0 2 0 syz-executor 16831 390663 23958 0 2 0x4000000 syz-executor 25299 489796 0 0 3 0x14280 nfsidl nfsio 76755 487773 9783 0 2 0 syz-executor 76755 453622 9783 0 3 0x4000080 sysctllk syz-executor 18554 143214 5348 0 2 0 syz-executor 18554 185558 5348 0 2 0x4000000 syz-executor 22136 499105 50125 0 2 0x1000000 syz-executor 22136 498770 50125 0 3 0x5000080 sbwait syz-executor 22136 169120 50125 0 3 0x5000080 fsleep syz-executor 22136 85909 50125 0 2 0x5000000 syz-executor 77169 285654 78179 -1 3 0x90 nanoslp syz-executor 77169 220718 78179 -1 3 0x4000090 sbwait syz-executor 77169 204167 78179 -1 3 0x4000090 fsleep syz-executor 93249 411371 69264 0 2 0 syz-executor 93249 157774 69264 0 2 0x4000000 syz-executor 93249 520515 69264 0 3 0x4000080 fsleep syz-executor 24212 268857 0 0 3 0x14200 acct acct 3482 75769 74555 0 3 0x82 sbwait sshd-session 50125 35546 9660 0 3 0x82 nanoslp syz-executor 22026 389055 9660 0 2 0x2 syz-executor 5348 118464 9660 0 3 0x82 nanoslp syz-executor 69305 425976 9660 0 2 0x2 syz-executor 69264 214187 9660 0 3 0x82 nanoslp syz-executor 9783 434540 9660 0 3 0x82 nanoslp syz-executor 78179 407427 9660 0 3 0x82 nanoslp syz-executor 23958 360692 9660 0 2 0x2 syz-executor 9660 465414 17369 0 3 0x82 kqread syz-executor 17369 163935 98500 0 3 0x10008a sigsusp ksh 98500 492682 62541 0 3 0x98 kqread sshd-session 62541 306200 74555 0 3 0x92 kqread sshd-session 46960 1134 1 0 3 0x100083 ttyopn getty 74555 257323 1 0 3 0x88 kqread sshd 10015 197838 16646 73 3 0x1100090 kqread syslogd 16646 40655 1 0 3 0x100082 sbwait syslogd 84531 325415 1 0 3 0x100080 kqread resolvd 79315 386134 4184 77 3 0x100092 kqread dhcpleased 50468 169462 4184 77 3 0x100092 kqread dhcpleased 4184 73149 1 0 3 0x80 kqread dhcpleased 72189 121846 0 0 3 0x14200 bored smr 5255 289238 0 0 2 0x14200 zerothread 99444 287506 0 0 3 0x14200 aiodoned aiodoned 86817 354502 0 0 3 0x14200 syncer update 20184 465000 0 0 3 0x14200 cleaner cleaner *61972 9400 0 0 7 0x14200 reaper 89171 113745 0 0 3 0x14200 pgdaemon pagedaemon 30996 134382 0 0 3 0x14200 bored viomb 31902 334924 0 0 3 0x40014200 acpi0 acpi0 7733 270725 0 0 3 0x14200 bored softnet0 14418 236058 0 0 3 0x14200 bored systqmp 74494 262545 0 0 3 0x14200 bored systq 70166 209857 0 0 3 0x40014200 tmoslp softclock 74207 403722 0 0 3 0x40014200 idle0 1 25323 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10208 11108K 11564K 166960K 13553 0 pcb 17 18K 26K 166960K 466 0 rtable 249 10K 10K 166960K 530 0 pf 33 13K 17K 166960K 153 0 ifaddr 41 7K 8K 166960K 117 0 ifgroup 51 2K 2K 166960K 189 0 sysctl 4 1K 9K 166960K 50 0 counters 32 17K 18K 166960K 112 0 ioctlops 0 0K 4K 166960K 234 0 iov 0 0K 24K 166960K 192 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1399 88K 88K 166960K 2489 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 22 3K 3K 166960K 28 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1732 201K 291K 166960K 11958 0 file desc 16 57K 232K 166960K 1216 0 sigio 0 0K 0K 166960K 29 0 proc 60 59K 108K 166960K 559 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 159 0 in_multi 87 6K 7K 166960K 167 0 ether_multi 1 0K 0K 166960K 16 0 mrt 1 0K 0K 166960K 18 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 253 1129K 1129K 166960K 253 0 exec 0 0K 1K 166960K 616 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 7 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 231 159K 165K 166960K 11994 0 UVM aobj 15 2K 2K 166960K 16 0 pinsyscall 39 78K 95K 166960K 2288 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 55 0 NDP 11 0K 2K 166960K 76 0 temp 60 8647K 8715K 166960K 44805 0 kqueue 16 22K 30K 166960K 211 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 178 0 174 3 2 1 3 0 8 0 rtentry 136 155 0 54 5 0 5 5 0 8 0 unpcb 144 1371 0 1349 10 9 1 7 0 8 0 syncache 336 12 0 12 3 2 1 1 0 8 1 tcpqe 32 6 0 6 2 2 0 1 0 8 0 tcpcb 736 435 0 424 10 8 2 7 0 8 0 arp 96 22 0 4 1 0 1 1 0 8 0 ipq 40 8 0 0 1 0 1 1 0 8 0 ipqe 40 11 0 3 1 0 1 1 0 8 0 inpcb 328 1488 0 1474 20 18 2 12 0 8 0 ip6q 72 10 0 6 1 0 1 1 0 8 0 ip6af 40 16 0 12 1 0 1 1 0 8 0 nd6 112 29 0 7 1 0 1 1 0 8 0 pkpcb 40 7 0 7 2 2 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1072 64 0 64 2 1 1 1 0 8 1 pppxif 1384 10 0 10 2 1 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pfrktable 1344 2 0 2 2 2 0 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 2 2 1 1 1 0 8 0 pfstate 384 2 0 1 2 1 1 1 0 8 0 pfrule 1344 3 0 2 1 0 1 1 0 8 0 rttmr 136 4 0 4 3 2 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 720 0 331 31 5 26 30 0 8 0 art_table 40 723 0 331 5 0 5 5 0 8 0 art_node 32 155 0 71 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 11 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 23 0 3 1 0 1 1 0 8 0 shmpl 112 13 0 1 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 3703 0 2209 95 0 95 95 0 8 0 ffsino 256 3703 0 2209 95 0 95 95 0 8 0 nchpl 144 5402 0 3711 63 0 63 63 0 8 0 rtmask 32 14 0 14 3 2 1 1 0 8 1 vnodes 216 4417 0 0 246 0 246 246 0 8 0 namei 1024 18961 0 18959 3 2 1 2 0 8 0 kstatmem 264 120 0 98 4 2 2 3 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 6 0 6 2 2 0 1 0 8 0 scxspl 216 18329 0 18329 15 14 1 8 1 8 1 plimitpl 152 444 0 428 1 0 1 1 0 8 0 sigapl 424 1490 0 1446 7 1 6 6 0 8 0 knotepl 120 67752 0 67701 30 21 9 17 0 8 6 kqueuepl 184 392 0 381 5 4 1 3 0 8 0 pipepl 304 258 0 231 3 0 3 3 0 8 0 fdescpl 448 1469 0 1440 5 1 4 5 0 8 0 filepl 120 10717 0 10496 19 10 9 15 0 8 0 lockfpl 104 366 0 364 1 0 1 1 0 8 0 lockfspl 48 152 0 150 1 0 1 1 0 8 0 sessionpl 144 27 0 18 1 0 1 1 0 8 0 pgrppl 48 184 0 167 1 0 1 1 0 8 0 ucredpl 104 2226 0 2214 1 0 1 1 0 8 0 zombiepl 144 1500 0 1500 1 0 1 1 0 8 1 processpl 1152 1491 0 1446 4 0 4 4 0 8 0 procpl 664 3110 0 3055 8 2 6 6 0 8 1 sosppl 176 15 0 15 2 2 0 1 0 8 0 sockpl 552 3135 0 3095 33 25 8 17 0 8 4 mcl64k 65536 189 0 186 1 0 1 1 0 8 0 mcl16k 16384 7 0 7 2 2 0 1 0 8 0 mcl12k 12288 4 0 4 2 1 1 1 0 8 1 mcl9k 9216 34 0 34 1 1 0 1 0 8 0 mcl8k 8192 16 0 16 2 1 1 1 0 8 1 mcl4k 4096 3941 0 3889 15 7 8 14 0 8 1 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 1820 0 1809 3 1 2 2 0 8 0 mtagpl 96 24 0 10 2 1 1 1 0 8 0 mbufpl 256 20668 0 20495 191 177 14 76 0 8 0 bufpl 280 6800 0 578 445 0 445 445 0 8 0 anonpl 24 210825 0 206630 81 32 49 49 0 187 19 amapchunkpl 152 39866 0 39394 41 18 23 30 0 158 0 amappl16 200 4011 0 3943 36 24 12 15 0 8 8 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 6 0 6 1 1 0 1 0 8 0 amappl13 176 409 0 408 1 0 1 1 0 8 0 amappl12 168 1823 0 1784 2 0 2 2 0 8 0 amappl11 160 6 0 6 1 1 0 1 0 8 0 amappl10 152 43 0 33 1 0 1 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 96 0 94 1 0 1 1 0 8 0 amappl6 120 292 0 278 1 0 1 1 0 8 0 amappl5 112 90 0 81 1 0 1 1 0 8 0 amappl4 104 439 0 414 1 0 1 1 0 8 0 amappl3 96 7209 0 7126 3 0 3 3 0 8 0 amappl2 88 1642 0 1566 2 0 2 2 0 8 0 amappl1 80 15060 0 14436 14 1 13 13 0 8 0 amappl 88 11087 0 10932 5 0 5 5 0 92 0 uvmvnodes 80 4417 0 0 91 0 91 91 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 8 0 8 2 2 0 1 0 8 0 dma128 128 256 0 256 2 2 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 15 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1469 0 1440 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1469 0 1440 1 0 1 1 0 8 0 vmmpekpl 168 13080 0 13044 3 0 3 3 0 8 0 vmmpepl 168 99574 0 97655 112 13 99 99 0 357 10 vmsppl 368 1468 0 1440 4 1 3 4 0 8 0 rwobjpl 40 31347 0 25943 57 0 57 57 0 8 1 pdppl 4096 2944 0 2880 114 46 68 82 0 8 4 pvpl 32 618407 0 607310 171 47 124 124 0 265 30 pmappl 216 1468 0 1440 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 586 0 258 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace leavepgrp(ffff8000ffffb618) at leavepgrp+0x8a sys/kern/kern_proc.c:339 process_zap(ffff8000ffffb618) at process_zap+0x3d sys/kern/kern_exit.c:870 reaper(ffff80002a73d228) at reaper+0x270 sys/kern/kern_exit.c:521 end trace frame: 0x0, count: -3 ddb> machine ddbcpu 1 No such command ddb> trace leavepgrp(ffff8000ffffb618) at leavepgrp+0x8a sys/kern/kern_proc.c:339 process_zap(ffff8000ffffb618) at process_zap+0x3d sys/kern/kern_exit.c:870 reaper(ffff80002a73d228) at reaper+0x270 sys/kern/kern_exit.c:521 end trace frame: 0x0, count: -3