panic: acquiring blockable sleep lock with spinlock or critical section held (rwlock) vmmaplk Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *398749 60479 32767 0x10 0x4000000 1 syz-executor 376802 60479 32767 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83071c68) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd8053532460,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter(fffffd8053532450,2) at rw_enter+0x122 uvmfault_lookup(ffff800032802920,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800032802920,ffff800032802958,ffff800032802980) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd8053532370,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800032802ac0,20000100) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800032802ac0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff800032802e44,5,20000100,ffff800032802e78,0,37,8d4722d382482382) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff8000ffff4a40,ffff800032802fb0,ffff800032802f00) at sys_sysctl+0x422 syscall(ffff800032802fb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800032802fb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 end trace frame: 0xffff800032803030, count: 0 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: acquiring blockable sleep lock with spinlock or critical section held (rwlock) vmmaplk ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83071c68) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd8053532460,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter(fffffd8053532450,2) at rw_enter+0x122 uvmfault_lookup(ffff800032802920,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800032802920,ffff800032802958,ffff800032802980) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd8053532370,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800032802ac0,20000100) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800032802ac0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff800032802e44,5,20000100,ffff800032802e78,0,37,8d4722d382482382) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff8000ffff4a40,ffff800032802fb0,ffff800032802f00) at sys_sysctl+0x422 syscall(ffff800032802fb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800032802fb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x723025051a0, count: -15 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800032802520 rbx 0xffff800029b7cdbf rdx 0 rcx 0xffff8000ffff4a40 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x2e92c0d57103d3e0 r11 0xda266fcd22d3c493 r12 0xffff800029b7cbc0 r13 0 r14 0 r15 0x1 rip 0xffffffff820e3355 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800032802510 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=398749 pid=60479 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff4020,0xffff8000ffff5c08 process=0xffff8000fffef680 user=0xffff8000327fe000, vmspace=0xfffffd8053532370 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60479 270374 20421 32767 2 0x10 syz-executor *60479 398749 20421 32767 7 0x4000010 syz-executor 60479 376802 20421 32767 7 0x4000010 syz-executor 60479 252890 20421 32767 2 0x4000010 syz-executor 20421 301798 10672 32767 3 0x90 nanoslp syz-executor 61322 122006 34779 32767 3 0x90 nanoslp syz-executor 61322 8987 34779 32767 3 0x4000090 kqpoll syz-executor 61322 42016 34779 32767 3 0x4000090 fsleep syz-executor 10672 326663 45842 0 3 0x82 wait syz-executor 38928 175264 48171 32767 3 0x90 nanoslp syz-executor 38928 413983 48171 32767 3 0x4000090 kqread syz-executor 38928 503859 48171 32767 3 0x4000090 fsleep syz-executor 65296 146059 6336 32767 3 0x90 nanoslp syz-executor 65296 225372 6336 32767 3 0x4000090 netcon syz-executor 65296 202787 6336 32767 3 0x4000090 fsleep syz-executor 49576 295502 10456 32767 3 0x90 nanoslp syz-executor 49576 37891 10456 32767 3 0x4000090 lockf syz-executor 49576 366052 10456 32767 3 0x4000090 fsleep syz-executor 29036 54930 12963 32767 3 0x90 nanoslp syz-executor 29036 49964 12963 32767 3 0x4000090 fsleep syz-executor 29036 85383 12963 32767 3 0x4000090 sbwait syz-executor 2543 208339 51157 32767 3 0x90 nanoslp syz-executor 2543 120595 51157 32767 3 0x4000090 kqpoll syz-executor 2543 287477 51157 32767 3 0x4000090 fsleep syz-executor 34779 254282 16176 32767 3 0x90 nanoslp syz-executor 16176 215736 45842 0 3 0x82 wait syz-executor 63036 414883 93518 32767 3 0x90 wait syz-executor 93518 329576 45842 0 3 0x82 wait syz-executor 6336 384892 51214 32767 3 0x90 nanoslp syz-executor 51214 15768 45842 0 3 0x82 wait syz-executor 51157 18103 38602 32767 3 0x90 nanoslp syz-executor 38602 287468 45842 0 3 0x82 wait syz-executor 48171 174820 46785 32767 3 0x90 nanoslp syz-executor 12963 455108 6445 32767 3 0x90 nanoslp syz-executor 46785 444273 45842 0 3 0x82 wait syz-executor 6445 333725 45842 0 3 0x82 wait syz-executor 10456 28691 28317 32767 3 0x90 nanoslp syz-executor 28317 188694 45842 0 3 0x82 wait syz-executor 80329 42786 0 0 3 0x14200 bored sosplice 45842 518066 15002 0 3 0x82 kqread syz-executor 15002 71786 7505 0 3 0x10008a sigsusp ksh 7505 392260 28154 0 3 0x98 kqread sshd-session 28154 430011 22868 0 3 0x92 kqread sshd-session 59443 291777 1 0 3 0x100083 ttyin getty 22868 37024 1 0 3 0x88 kqread sshd 94545 179776 51377 73 3 0x1100090 kqread syslogd 51377 458783 1 0 3 0x100082 sbwait syslogd 58540 267805 1 0 3 0x100080 kqread resolvd 704 231943 58383 77 3 0x100092 kqread dhcpleased 31589 260304 58383 77 3 0x100092 kqread dhcpleased 58383 121012 1 0 3 0x80 kqread dhcpleased 28335 95639 0 0 3 0x14200 bored smr 81355 141880 0 0 3 0x14200 pgzero zerothread 65015 82876 0 0 3 0x14200 aiodoned aiodoned 88527 28667 0 0 3 0x14200 syncer update 78560 130334 0 0 3 0x14200 cleaner cleaner 12592 171043 0 0 3 0x14200 reaper reaper 26993 384565 0 0 3 0x14200 pgdaemon pagedaemon 47317 478627 0 0 3 0x14200 bored viomb 80913 199567 0 0 3 0x40014200 acpi0 acpi0 53091 322148 0 0 3 0x40014200 idle1 68281 317806 0 0 3 0x14200 bored softnet3 57298 187394 0 0 3 0x14200 bored softnet2 67589 305345 0 0 3 0x14200 bored softnet1 14008 102524 0 0 3 0x14200 bored softnet0 16076 110238 0 0 3 0x14200 bored systqmp 76395 215359 0 0 3 0x14200 bored systq 13205 220439 0 0 3 0x14200 tmoslp softclockmp 76328 114714 0 0 3 0x40014200 tmoslp softclock 98599 425124 0 0 3 0x40014200 idle0 1 482435 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &table->inpt_mtx r = 0 (0xffffffff835844c8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 sysctl_file+0xa2d #4 kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 #5 sys_sysctl+0x422 #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 60479 (syz-executor) thread 0xffff8000ffff4a40 (398749) exclusive rwlock netlock r = 0 (0xffffffff834f07f0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 sysctl_file+0xa18 sys/kern/kern_sysctl.c:1675 #2 kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 #3 sys_sysctl+0x422 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835c9da0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 uvm_fault_check+0x521 sys/uvm/uvm_fault.c:782 #6 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #7 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1602 #8 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:186 #9 kern_sysctl+0x1b3 sys/kern/kern_sysctl.c:498 #10 sys_sysctl+0x422 #11 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #11 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff834f5e30) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:176 #3 kern_sysctl+0x1b3 sys/kern/kern_sysctl.c:498 #4 sys_sysctl+0x422 #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 exclusive mutex &table->inpt_mtx r = 0 (0xffffffff835844c8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 sysctl_file+0xa2d #4 kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 #5 sys_sysctl+0x422 #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 60479 (syz-executor) thread 0xffff8000ffff5bf8 (376802) exclusive rwlock vmmaplk r = 0 (0xfffffd8053532460) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 vm_map_lock_ln+0x143 sys/uvm/uvm_map.c:5252 #3 uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3059 #4 sys_mprotect+0x34c sys/uvm/uvm_mmap.c:585 #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10221 11052K 11059K 166960K 14046 0 pcb 17 28K 32K 166960K 29 0 rtable 236 6K 7K 166960K 33242 0 pf 31 16K 16K 166960K 1876 0 ifaddr 42 15K 19K 166960K 3710 0 ifgroup 50 2K 2K 166960K 3725 0 sysctl 4 1K 5K 166960K 107 0 counters 64 36K 36K 166960K 1894 0 ioctlops 0 0K 2K 166960K 2254 0 iov 1 2K 48K 166960K 4686 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1466 92K 92K 166960K 24330 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 1104 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 1881 0 dirhash 30 5K 6K 166960K 1824 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 27 98K 157K 166960K 65826 0 sigio 0 0K 0K 166960K 2503 0 proc 58 79K 176K 166960K 31105 0 subproc 104 6K 12K 166960K 13845 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 13814 0 in_multi 99 7K 7K 166960K 12354 0 ether_multi 1 0K 0K 166960K 344 0 mrt 1 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 295 1314K 1314K 166960K 295 0 exec 0 0K 1K 166960K 21460 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 293 76K 132K 166960K 563459 0 UVM aobj 131 4K 6K 166960K 153 0 pinsyscall 47 94K 134K 166960K 92314 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 4538 0 NDP 13 0K 2K 166960K 2766 0 temp 77 6825K 6952K 166960K 378207 0 kqueue 13 20K 36K 166960K 10610 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 10686 0 10683 70 69 1 3 0 8 0 rtentry 112 10825 0 10714 15 11 4 4 0 8 0 unpcb 144 56450 0 56427 211 209 2 10 0 8 0 syncache 336 1348 0 1348 34 33 1 1 0 8 1 tcpqe 32 651 0 651 48 47 1 1 0 8 1 tcpcb 808 41028 0 40928 296 279 17 24 0 8 1 arp 120 1886 0 1867 1 0 1 1 0 8 0 ipq 40 387 0 382 6 5 1 1 0 8 0 ipqe 40 9854 0 9849 6 5 1 1 0 8 0 inpcb 336 91837 0 91728 329 312 17 28 0 8 2 ip6q 72 4 0 4 4 4 0 1 0 8 0 ip6af 40 8 0 8 4 4 0 1 0 8 0 nd6 136 3392 0 3368 12 10 2 2 0 8 1 kcovpl 48 1065 0 1057 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 43963 0 43503 241 209 32 33 0 8 0 art_table 32 43964 0 43503 16 11 5 5 0 8 0 art_node 16 10824 0 10723 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 14 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 1872 0 1862 1 0 1 1 0 8 0 shmpl 112 150 0 22 4 0 4 4 0 8 0 dirhash 1024 1253 0 1211 26 20 6 6 0 8 0 dino2pl 256 85169 0 80112 319 2 317 317 0 8 0 ffsino 272 85169 0 80112 338 0 338 338 0 8 0 nchpl 144 156297 0 153077 121 1 120 120 0 8 0 uvmvnodes 80 12450 0 0 255 0 255 255 0 8 0 vnodes 216 12450 0 0 692 0 692 692 0 8 0 namei 1024 653104 0 653104 55 54 1 3 0 8 1 percpumem 16 961 0 915 1 0 1 1 0 8 0 kstatmem 264 1852 0 1830 2 0 2 2 0 8 0 scxspl 216 625322 0 625322 119 116 3 8 1 8 3 plimitpl 152 18855 0 18831 3 1 2 2 0 8 0 sigapl 424 64324 0 64267 29 22 7 9 0 8 0 futexpl 64 740888 0 740882 36 35 1 1 0 8 0 knotepl 120 2176 0 0 18 0 18 18 0 8 0 kqueuepl 216 21341 0 21328 163 162 1 8 0 8 0 pipepl 320 11864 0 11837 138 135 3 10 0 8 0 fdescpl 496 64305 0 64267 28 22 6 7 0 8 0 filepl 152 437604 0 437343 276 262 14 24 0 8 2 lockfpl 104 18575 0 18570 13 12 1 2 0 8 0 lockfspl 48 5233 0 5230 1 0 1 1 0 8 0 sessionpl 144 1290 0 1274 1 0 1 1 0 8 0 pgrppl 48 3843 0 3819 1 0 1 1 0 8 0 ucredpl 104 84789 0 84770 1 0 1 1 0 8 0 zombiepl 144 64268 0 64267 1 0 1 1 0 8 0 processpl 1160 64324 0 64267 15 10 5 6 0 8 0 procpl 648 149981 0 149909 15 8 7 7 0 8 0 srpgc 96 30 0 30 14 14 0 1 0 8 0 sosppl 168 786 0 780 29 28 1 1 0 8 0 sockpl 664 160854 0 160707 452 432 20 35 0 8 0 mcl64k 65536 151 0 0 7 2 5 6 0 8 0 mcl16k 16384 33 0 0 4 1 3 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 10 0 0 1 0 1 1 0 8 0 mcl8k 8192 26 0 0 3 0 3 3 0 8 0 mcl4k 4096 247 0 0 20 3 17 20 0 8 0 mcl2k2 2112 12 0 0 1 0 1 1 0 8 0 mcl2k 2048 657 0 0 14 7 7 8 0 8 0 mtagpl 96 15 0 0 1 0 1 1 0 8 0 mbufpl 256 4704 0 0 223 0 223 223 0 8 0 bufpl 280 109306 0 96812 893 0 893 893 0 8 0 anonpl 24 7339708 0 7331575 552 477 75 87 0 185 0 amapchunkpl 152 1841679 0 1840864 532 498 34 48 0 158 0 amappl16 200 163731 0 163600 696 676 20 29 0 8 7 amappl15 192 15 0 14 1 0 1 1 0 8 0 amappl14 184 2665 0 2655 1 0 1 1 0 8 0 amappl13 176 60 0 60 43 43 0 1 0 8 0 amappl12 168 79969 0 79930 16 13 3 3 0 8 0 amappl11 160 237 0 226 1 0 1 1 0 8 0 amappl10 152 15 0 14 3 2 1 1 0 8 0 amappl9 144 134 0 133 3 2 1 1 0 8 0 amappl8 136 18 0 16 1 0 1 1 0 8 0 amappl7 128 2304 0 2293 1 0 1 1 0 8 0 amappl6 120 9319 0 9317 1 0 1 1 0 8 0 amappl5 112 4137 0 4127 1 0 1 1 0 8 0 amappl4 104 4536 0 4519 1 0 1 1 0 8 0 amappl3 96 382012 0 381863 9 5 4 5 0 8 0 amappl2 88 17879 0 17814 8 5 3 3 0 8 0 amappl1 80 349909 0 349377 55 35 20 27 0 8 0 amappl 88 550059 0 549821 7 1 6 6 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 72 152 0 22 3 0 3 3 0 8 0 uaddrrnd 24 64305 0 64267 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 64305 0 64267 1 0 1 1 0 8 0 vmmpekpl 168 535443 0 535388 7 3 4 5 0 8 0 vmmpepl 168 3892040 0 3889835 563 453 110 148 0 357 6 vmsppl 440 64304 0 64267 14 9 5 7 0 8 0 rwobjpl 56 987468 0 973876 235 39 196 196 0 8 0 pdppl 4096 128617 0 128534 1894 1809 85 117 0 8 2 pvpl 32 49488 0 0 397 2 395 395 0 265 0 pmappl 248 64304 0 64267 11 8 3 4 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 3807 0 2733 31 0 31 31 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8348fff0) 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(ffffffff835c9b98) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835c9b98) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff835c9b98) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835c9b98) at __mp_lock+0x199 sys/kern/kern_lock.c:144 sys_mmap(ffff8000ffff5bf8,ffff8000328359f0,ffff800032835940) at sys_mmap+0x62f sys/uvm/uvm_mmap.c:287 syscall(ffff8000328359f0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000328359f0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72299d92630, count: 5 ddb{0}> trace x86_ipi_db(ffffffff8348fff0) 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(ffffffff835c9b98) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835c9b98) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff835c9b98) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835c9b98) at __mp_lock+0x199 sys/kern/kern_lock.c:144 sys_mmap(ffff8000ffff5bf8,ffff8000328359f0,ffff800032835940) at sys_mmap+0x62f sys/uvm/uvm_mmap.c:287 syscall(ffff8000328359f0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000328359f0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72299d92630, count: -10 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83071c68) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd8053532460,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter(fffffd8053532450,2) at rw_enter+0x122 uvmfault_lookup(ffff800032802920,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800032802920,ffff800032802958,ffff800032802980) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd8053532370,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800032802ac0,20000100) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800032802ac0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff800032802e44,5,20000100,ffff800032802e78,0,37,8d4722d382482382) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff8000ffff4a40,ffff800032802fb0,ffff800032802f00) at sys_sysctl+0x422 syscall(ffff800032802fb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800032802fb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 end trace frame: 0xffff800032803030, count: 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83071c68) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd8053532460,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter(fffffd8053532450,2) at rw_enter+0x122 uvmfault_lookup(ffff800032802920,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800032802920,ffff800032802958,ffff800032802980) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd8053532370,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800032802ac0,20000100) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800032802ac0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff800032802e44,5,20000100,ffff800032802e78,0,37,8d4722d382482382) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff8000ffff4a40,ffff800032802fb0,ffff800032802f00) at sys_sysctl+0x422 syscall(ffff800032802fb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800032802fb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x723025051a0, count: -15