kernel: protection fault trap, code=0 Stopped at reaper+0x322: movq 0x8(%rax),%rdi ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace reaper(ffff800029fd96d0) at reaper+0x322 sys/kern/kern_exit.c:492 end trace frame: 0x0, count: -1 ddb{1}> show registers rdi 0 rsi 0x40000 acpi_pdirpa+0x2be71 rbp 0xffff800029fe5e90 rbx 0 rdx 0 rcx 0xffff800029fd96d0 rax 0xdeaf4152deaf4152 r8 0x65 r9 0x1 r10 0x5979c5009ced75d5 r11 0x7b3abb78fd5eda8c r12 0x40000 acpi_pdirpa+0x2be71 r13 0xffffffff83452ff0 cpu_info_full_primary+0x1ff0 r14 0xffff80002c167b00 r15 0x41018 acpi_pdirpa+0x2ce89 rip 0xffffffff82376af2 reaper+0x322 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800029fe5e60 ss 0x10 reaper+0x322: movq 0x8(%rax),%rdi ddb{1}> show proc PROC (reaper) tid=325737 pid=92929 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=32, usrpri=54, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800029fd9958,0xffff800029fd91d0 process=0xffff800029febaf0 user=0xffff800029fe0000, vmspace=0xffffffff835d6fc0 estcpu=4, cpticks=10, pctcpu=1.23, user=0, sys=85073, intr=14759 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 63724 402961 92022 32767 2 0x10 syz-executor 58267 391120 57174 32767 7 0x10 syz-executor 58267 203124 57174 32767 3 0x4000090 fsleep syz-executor 17696 391929 83648 32767 3 0x90 nanoslp syz-executor 17696 406363 83648 32767 3 0x4000090 sbwait syz-executor 17696 208147 83648 32767 3 0x4000090 fsleep syz-executor 68858 244201 85838 32767 3 0x90 nanoslp syz-executor 68858 173896 85838 32767 3 0x4000090 sbwait syz-executor 41208 447629 85692 32767 3 0x90 nanoslp syz-executor 41208 491990 85692 32767 3 0x4000090 lockf syz-executor 41208 196162 85692 32767 3 0x4000090 fsleep syz-executor 57116 83082 45094 32767 3 0x90 nanoslp syz-executor 57116 430757 45094 32767 3 0x4000090 lockf syz-executor 57116 439244 45094 32767 3 0x4000090 lockf syz-executor 57116 228232 45094 32767 3 0x4000090 fsleep syz-executor 36919 384016 54233 32767 3 0x90 nanoslp syz-executor 36919 320489 54233 32767 3 0x4000090 netacc syz-executor 36919 47202 54233 32767 3 0x4000090 fsleep syz-executor 45094 400256 11650 32767 3 0x90 nanoslp syz-executor 85692 404327 67955 32767 3 0x90 nanoslp syz-executor 11650 144912 18899 0 3 0x82 wait syz-executor 85838 167668 7803 32767 3 0x90 nanoslp syz-executor 83648 420881 1428 32767 3 0x90 nanoslp syz-executor 54233 440352 88932 32767 3 0x90 nanoslp syz-executor 57174 256351 97474 32767 3 0x90 nanoslp syz-executor 67955 417657 18899 0 3 0x82 wait syz-executor 7803 345163 18899 0 3 0x82 wait syz-executor 92022 154786 4357 32767 3 0x90 nanoslp syz-executor 1428 481958 18899 0 3 0x82 wait syz-executor 88932 146148 18899 0 3 0x82 wait syz-executor 4357 365433 18899 0 3 0x82 wait syz-executor 59002 256690 21771 32767 2 0x10 syz-executor 97474 67472 18899 0 3 0x82 wait syz-executor 21771 212509 18899 0 3 0x82 wait syz-executor 36375 85250 44252 0 2 0x100002 arp 44252 39752 56715 0 3 0x10008a sigsusp sh 56715 230525 1 0 3 0x80 wait syz-executor 59004 190428 71395 32767 3 0x3810 suspend syz-executor 59004 473925 71395 32767 4 0x4081810 syz-executor 71395 210619 1 32767 3 0x90 wait syz-executor 70825 316738 27444 0 3 0x100082 sbwait arp 27444 303042 59087 0 3 0x10008a sigsusp sh 59087 472084 1 0 3 0x80 wait syz-executor 85211 37382 0 0 3 0x14200 bored sosplice 18899 268304 72203 0 3 0x82 kqread syz-executor 72203 79461 16862 0 3 0x10008a sigsusp ksh 16862 114799 23335 0 3 0x98 kqread sshd-session 23335 488797 98356 0 3 0x92 kqread sshd-session 37643 240134 1 0 3 0x100083 ttyin getty 98356 291414 1 0 3 0x88 kqread sshd 7617 386994 7473 73 3 0x1100090 kqread syslogd 7473 1457 1 0 3 0x100082 sbwait syslogd 69318 366113 1 0 3 0x100080 kqread resolvd 91447 395558 59333 77 3 0x100092 kqread dhcpleased 74462 137013 59333 77 3 0x100092 kqread dhcpleased 59333 324079 1 0 3 0x80 kqread dhcpleased 96545 185574 0 0 3 0x14200 bored smr 42679 288863 0 0 2 0x14200 zerothread 31704 522775 0 0 3 0x14200 aiodoned aiodoned 50420 301912 0 0 3 0x14200 syncer update 5277 81507 0 0 3 0x14200 cleaner cleaner *92929 325737 0 0 7 0x14200 reaper 46507 486926 0 0 3 0x14200 pgdaemon pagedaemon 2350 41201 0 0 3 0x14200 bored viomb 97451 431329 0 0 3 0x40014200 acpi0 acpi0 70062 473807 0 0 3 0x40014200 idle1 37130 53654 0 0 3 0x14200 bored softnet3 4710 71940 0 0 3 0x14200 bored softnet2 18937 208004 0 0 3 0x14200 bored softnet1 17213 268967 0 0 3 0x14200 bored softnet0 72521 512517 0 0 3 0x14200 bored systqmp 7033 439380 0 0 3 0x14200 bored systq 20074 176993 0 0 3 0x14200 tmoslp softclockmp 91240 97628 0 0 3 0x40014200 tmoslp softclock 22140 111068 0 0 3 0x40014200 idle0 1 383798 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 58267 (syz-executor) thread 0xffff80002c98aaa0 (391120) shared rwlock vmmaplk r = 0 (0xfffffd8073e6ed08) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 Process 17696 (syz-executor) thread 0xffff8000371ef990 (406363) exclusive rwlock sbufrcv r = 0 (0xffff8000012bbb20) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sblock+0xb7 sys/kern/uipc_socket2.c:549 #3 soreceive+0x295 sys/kern/uipc_socket.c:947 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1082 #5 sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:882 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 92929 (reaper) thread 0xffff800029fd96d0 (325737) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835678f8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 knote_processexit+0x2b sys/kern/kern_event.c:2063 #6 reaper+0x2ad sys/kern/kern_exit.c:490 #7 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10234 10031K 10036K 166960K 13846 0 pcb 17 20K 22K 166960K 25 0 rtable 234 6K 7K 166960K 30039 0 pf 31 16K 16K 166960K 1736 0 ifaddr 42 15K 19K 166960K 3416 0 ifgroup 50 2K 2K 166960K 3443 0 sysctl 4 1K 5K 166960K 15 0 counters 64 36K 36K 166960K 1752 0 ioctlops 0 0K 2K 166960K 2532 0 iov 0 0K 34K 166960K 5288 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1482 93K 93K 166960K 24657 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 1079 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 2709 0 dirhash 27 5K 6K 166960K 1143 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 33 125K 185K 166960K 58408 0 sigio 0 0K 0K 166960K 1782 0 proc 56 78K 176K 166960K 29487 0 subproc 143 8K 13K 166960K 13923 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 13989 0 in_multi 99 7K 8K 166960K 11800 0 ether_multi 1 0K 0K 166960K 439 0 mrt 1 0K 0K 166960K 16 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 355 1579K 1579K 166960K 355 0 exec 0 0K 1K 166960K 21006 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 320 101K 150K 166960K 500176 0 UVM aobj 131 5K 7K 166960K 136 0 pinsyscall 56 112K 144K 166960K 82302 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 3 0K 1K 166960K 4172 0 NDP 20 1K 2K 166960K 2543 0 temp 87 6824K 6953K 166960K 445511 0 kqueue 15 22K 36K 166960K 9307 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 9031 0 9026 64 63 1 4 0 8 0 rtentry 112 9950 0 9840 16 12 4 4 0 8 0 unpcb 144 60384 0 60363 245 243 2 14 0 8 0 syncache 336 453 0 453 56 56 0 1 0 8 0 tcpqe 32 157 0 157 68 68 0 1 0 8 0 tcpcb 808 34017 0 34005 378 376 2 15 0 8 0 arp 120 1735 0 1717 1 0 1 1 0 8 0 ipq 40 226 0 223 9 8 1 1 0 8 0 ipqe 40 1668 0 1665 9 8 1 1 0 8 0 inpcb 336 87033 0 87014 459 451 8 21 0 8 6 ip6q 72 16 0 16 13 13 0 1 0 8 0 ip6af 40 31 0 31 13 13 0 1 0 8 0 nd6 136 3114 0 3090 13 11 2 2 0 8 1 kcovpl 48 1071 0 1060 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 40841 0 40383 274 243 31 34 0 8 2 art_table 32 40842 0 40383 17 12 5 5 0 8 1 art_node 16 9949 0 9849 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 13 2 1 1 1 0 8 0 semapl 112 2707 0 2697 1 0 1 1 0 8 0 shmpl 112 133 0 5 4 0 4 4 0 8 0 dirhash 1024 799 0 759 30 25 5 6 0 8 0 dino2pl 256 75972 0 71199 299 0 299 299 0 8 0 ffsino 272 75972 0 71199 321 2 319 319 0 8 0 nchpl 144 140668 0 137473 119 0 119 119 0 8 0 uvmvnodes 80 11312 0 0 231 0 231 231 0 8 0 vnodes 216 11312 0 0 629 0 629 629 0 8 0 namei 1024 595656 0 595656 38 37 1 2 0 8 1 percpumem 16 890 0 844 1 0 1 1 0 8 0 kstatmem 264 1710 0 1688 2 0 2 2 0 8 0 scxspl 216 540082 0 540082 136 135 1 8 1 8 1 plimitpl 152 17861 0 17833 2 0 2 2 0 8 0 sigapl 424 56772 0 56708 21 12 9 9 0 8 0 futexpl 64 693713 0 693708 37 36 1 1 0 8 0 knotepl 120 2564 0 0 27 1 26 26 0 8 0 kqueuepl 216 19978 0 19968 171 170 1 8 0 8 0 pipepl 320 11153 0 11117 137 132 5 11 0 8 0 fdescpl 496 56753 0 56708 25 17 8 8 0 8 0 filepl 152 419695 0 419383 301 284 17 27 0 8 2 lockfpl 104 17128 0 17122 9 8 1 2 0 8 0 lockfspl 48 4798 0 4795 1 0 1 1 0 8 0 sessionpl 144 1078 0 1059 1 0 1 1 0 8 0 pgrppl 48 3343 0 3316 1 0 1 1 0 8 0 ucredpl 104 80322 0 80302 1 0 1 1 0 8 0 zombiepl 144 56708 0 56708 1 0 1 1 0 8 1 processpl 1160 56772 0 56708 14 8 6 6 0 8 0 procpl 648 134368 0 134292 17 9 8 8 0 8 0 srpgc 96 52 0 52 22 22 0 1 0 8 0 sosppl 168 802 0 802 51 51 0 1 0 8 0 sockpl 664 157779 0 157733 746 736 10 37 0 8 4 mcl64k 65536 41 0 0 4 1 3 3 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 41 0 0 4 1 3 3 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 1070 0 0 29 9 20 29 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 11340 0 0 635 0 635 635 0 8 0 bufpl 280 98536 0 87224 809 0 809 809 0 8 0 anonpl 24 7209143 0 7191697 925 776 149 164 0 185 12 amapchunkpl 152 1611774 0 1610825 491 446 45 55 0 158 3 amappl16 200 190977 0 190386 625 578 47 62 0 8 8 amappl15 192 19 0 19 10 10 0 1 0 8 0 amappl14 184 2250 0 2237 1 0 1 1 0 8 0 amappl13 176 42 0 42 28 28 0 1 0 8 0 amappl12 168 71112 0 71065 10 7 3 3 0 8 0 amappl11 160 50 0 39 1 0 1 1 0 8 0 amappl10 152 7 0 7 2 2 0 1 0 8 0 amappl9 144 138 0 137 2 1 1 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 1997 0 1984 1 0 1 1 0 8 0 amappl6 120 8558 0 8553 1 0 1 1 0 8 0 amappl5 112 3711 0 3701 1 0 1 1 0 8 0 amappl4 104 3930 0 3910 1 0 1 1 0 8 0 amappl3 96 291935 0 291806 6 2 4 4 0 8 0 amappl2 88 60802 0 60709 3 0 3 3 0 8 0 amappl1 80 293447 0 292820 28 12 16 17 0 8 0 amappl 88 488438 0 488181 7 0 7 7 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 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 72 135 0 5 3 0 3 3 0 8 0 uaddrrnd 24 56753 0 56708 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 56753 0 56708 1 0 1 1 0 8 0 vmmpekpl 168 494402 0 494323 7 2 5 5 0 8 0 vmmpepl 168 3760812 0 3757860 810 574 236 236 0 357 84 vmsppl 440 56752 0 56708 15 8 7 7 0 8 0 rwobjpl 56 913783 0 900708 280 90 190 190 0 8 0 pdppl 4096 113513 0 113416 2067 1958 109 127 0 8 12 pvpl 32 50686 0 0 403 1 402 402 0 265 0 pmappl 248 56752 0 56708 11 7 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 4600 0 3161 42 0 42 42 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83452ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff835676f0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835676f0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 uvm_fault(fffffd8073e6ec18,d39391c8000,0,1) at uvm_fault+0x1ed sys/uvm/uvm_fault.c:622 upageflttrap(ffff80002a0dca70,d39391c8000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a0dca70) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x78731347a630, count: -8 ddb{0}> machine ddbcpu 1 Stopped at reaper+0x322: movq 0x8(%rax),%rdi ddb{1}> trace reaper(ffff800029fd96d0) at reaper+0x322 sys/kern/kern_exit.c:492 end trace frame: 0x0, count: -1