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 *272496 45147 32767 0x1010 0x4080000 0K syz-executor 518667 45147 32767 0x1010 0x4080000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830716f0) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd806a4e7b40,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter_read(fffffd806a4e7b30) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff80002a0f0410,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff80002a0f0410,ffff80002a0f0448,ffff80002a0f0470) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd806a4e7a50,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80002a0f05b0,20000100) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80002a0f05b0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff80002a0f0934,5,20000100,ffff80002a0f0968,0,37,bfc4423eed19e627) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff80003519c2a8,ffff80002a0f0aa0,ffff80002a0f09f0) at sys_sysctl+0x422 syscall(ffff80002a0f0aa0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0f0aa0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 end trace frame: 0xffff80002a0f0b20, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: acquiring blockable sleep lock with spinlock or critical section held (rwlock) vmmaplk ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830716f0) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd806a4e7b40,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter_read(fffffd806a4e7b30) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff80002a0f0410,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff80002a0f0410,ffff80002a0f0448,ffff80002a0f0470) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd806a4e7a50,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80002a0f05b0,20000100) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80002a0f05b0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff80002a0f0934,5,20000100,ffff80002a0f0968,0,37,bfc4423eed19e627) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff80003519c2a8,ffff80002a0f0aa0,ffff80002a0f09f0) at sys_sysctl+0x422 syscall(ffff80002a0f0aa0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0f0aa0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc3f67609c20, count: -15 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a0f0070 rbx 0xffffffff834dcdbf cpu_info_full_primary+0x2dbf rdx 0 rcx 0xffff80003519c2a8 rax 0xffffffff834dbff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x5f30ec64b4032dce r11 0x2c6464814592b529 r12 0xffffffff834dcbc0 cpu_info_full_primary+0x2bc0 r13 0 r14 0 r15 0x1 rip 0xffffffff81f62965 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a0f0060 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=272496 pid=45147 tcnt=5 stat=onproc flags process=1010 proc=4080000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003519ca40 scnt=4 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003519ca40,0xffff80003519cf60 process=0xffff80002d974db0 user=0xffff80002a0eb000, vmspace=0xfffffd806a4e7a50 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 45147 26149 2190 32767 3 0x3010 suspend syz-executor *45147 272496 2190 32767 7 0x4081010 syz-executor 45147 245471 2190 32767 2 0x4081090 syz-executor 45147 19201 2190 32767 2 0x4081090 syz-executor 45147 518667 2190 32767 7 0x4081010 syz-executor 12131 172207 54938 32767 2 0x10 syz-executor 12131 312327 54938 32767 3 0x4000090 fsleep syz-executor 75549 293137 48170 32767 2 0x10 syz-executor 18557 392234 26301 32767 2 0x10 syz-executor 18557 68690 26301 32767 3 0x4000090 kqsel syz-executor 18557 71842 26301 32767 3 0x4000090 fsleep syz-executor 18557 27693 26301 32767 3 0x4000090 fsleep syz-executor 18557 481733 26301 32767 3 0x4000090 fsleep syz-executor 26301 29640 39461 32767 3 0x90 nanoslp syz-executor 39461 390416 9741 0 3 0x82 wait syz-executor 2190 304403 37041 32767 3 0x90 nanoslp syz-executor 37041 210743 9741 0 3 0x82 wait syz-executor 85994 318990 98499 32767 3 0x90 wait syz-executor 48170 11219 69536 32767 3 0x90 nanoslp syz-executor 75782 13362 50984 32767 3 0x10 biowait syz-executor 36560 18354 79320 32767 3 0x90 nanoslp syz-executor 54938 90 90743 32767 3 0x90 nanoslp syz-executor 69536 199474 9741 0 3 0x82 wait syz-executor 79320 74435 9741 0 3 0x82 wait syz-executor 90743 424609 9741 0 3 0x82 wait syz-executor 50984 501741 9741 0 3 0x82 wait syz-executor 98499 221837 9741 0 3 0x82 wait syz-executor 21327 182535 0 0 3 0x14200 bored sosplice 55550 416214 17391 0 3 0x100082 sbwait arp 17391 287313 94943 0 3 0x10008a sigsusp sh 94943 83216 38856 0 3 0x80 wait syz-executor 38856 309555 9741 0 3 0x82 wait syz-executor 9741 246368 68594 0 2 0x2 syz-executor 68594 203059 37419 0 3 0x10008a sigsusp ksh 37419 61544 20231 0 3 0x98 kqread sshd-session 20231 506683 99155 0 3 0x92 kqread sshd-session 94773 251978 1 0 3 0x100083 ttyin getty 99155 38694 1 0 3 0x88 kqread sshd 76227 485075 44097 73 3 0x1100090 kqread syslogd 44097 387447 1 0 3 0x100082 sbwait syslogd 89779 217798 1 0 3 0x100080 kqread resolvd 59825 82491 38357 77 3 0x100092 kqread dhcpleased 73772 344172 38357 77 3 0x100092 kqread dhcpleased 38357 369504 1 0 3 0x80 kqread dhcpleased 61539 136197 0 0 3 0x14200 bored smr 65480 144923 0 0 2 0x14200 zerothread 19377 347780 0 0 3 0x14200 aiodoned aiodoned 15896 310185 0 0 3 0x14200 syncer update 80979 114279 0 0 3 0x14200 cleaner cleaner 70702 467512 0 0 3 0x14200 reaper reaper 13046 412888 0 0 3 0x14200 pgdaemon pagedaemon 49628 290060 0 0 3 0x14200 bored viomb 82878 299949 0 0 3 0x40014200 acpi0 acpi0 16396 345263 0 0 3 0x40014200 idle1 3010 255297 0 0 3 0x14200 bored softnet3 25405 164715 0 0 3 0x14200 bored softnet2 64067 50562 0 0 3 0x14200 bored softnet1 77141 48453 0 0 3 0x14200 bored softnet0 6595 16804 0 0 3 0x14200 bored systqmp 11909 101058 0 0 3 0x14200 bored systq 70661 403485 0 0 3 0x14200 tmoslp softclockmp 27184 205372 0 0 3 0x40014200 tmoslp softclock 68347 203969 0 0 3 0x40014200 idle0 1 331178 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &table->inpt_mtx r = 0 (0xffffffff835c33d8) #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 45147 (syz-executor) thread 0xffff80003519c2a8 (272496) exclusive rwlock netlock r = 0 (0xffffffff83498b10) #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_file+0xa18 sys/kern/kern_sysctl.c:1675 #3 kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 #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 kernel_lock &kernel_lock r = 0 (0xffffffff83628a80) #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+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 sysctl_file+0xa18 sys/kern/kern_sysctl.c:1675 #6 kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 #7 sys_sysctl+0x422 #8 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff8347e0d0) #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 (0xffffffff835c33d8) #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 45147 (syz-executor) thread 0xffff8000371bdc08 (518667) shared rwlock vmmaplk r = 0 (0xfffffd806a4e7b40) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 75782 (syz-executor) thread 0xffff800029fd8f38 (13362) exclusive rrwlock inode r = 0 (0xfffffd806a53c098) #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 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806a53ca28) #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 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10187 11047K 11059K 166960K 11295 0 pcb 17 12K 12K 166960K 17 0 rtable 220 6K 6K 166960K 642 0 pf 31 16K 16K 166960K 51 0 ifaddr 40 7K 7K 166960K 84 0 ifgroup 50 2K 2K 166960K 90 0 sysctl 1 0K 0K 166960K 1 0 counters 64 36K 36K 166960K 84 0 ioctlops 0 0K 2K 166960K 41 0 iov 0 0K 12K 166960K 23 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1442 91K 91K 166960K 1701 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 10 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 26 97K 153K 166960K 640 0 sigio 0 0K 0K 166960K 4 0 proc 58 79K 164K 166960K 787 0 subproc 104 6K 11K 166960K 234 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 85 0 in_multi 89 6K 6K 166960K 212 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 510 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 265 74K 122K 166960K 6763 0 UVM aobj 14 4K 4K 166960K 15 0 pinsyscall 48 96K 126K 166960K 1946 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 42 0 NDP 11 0K 1K 166960K 55 0 temp 46 6817K 6880K 166960K 6588 0 kqueue 13 20K 30K 166960K 91 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 99 0 95 1 0 1 1 0 8 0 rtentry 112 216 0 113 3 0 3 3 0 8 0 unpcb 144 571 0 554 8 1 7 7 0 8 6 syncache 336 16 0 16 2 1 1 1 0 8 1 tcpqe 32 4 0 4 2 1 1 1 0 8 1 tcpcb 808 208 0 199 2 0 2 2 0 8 0 arp 120 37 0 20 1 0 1 1 0 8 0 inpcb 336 750 0 738 15 8 7 10 0 8 5 nd6 136 54 0 32 1 0 1 1 0 8 0 kcovpl 48 18 0 10 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 870 0 453 32 5 27 27 0 8 0 art_table 32 871 0 453 4 0 4 4 0 8 0 art_node 16 215 0 121 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 8 1 0 1 1 0 8 0 semapl 112 7 0 0 1 0 1 1 0 8 0 shmpl 112 12 0 1 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2232 0 706 96 0 96 96 0 8 0 ffsino 272 2232 0 706 103 0 103 103 0 8 0 nchpl 144 2903 0 1211 63 0 63 63 0 8 0 uvmvnodes 80 2475 0 0 51 0 51 51 0 8 0 vnodes 216 2475 0 0 138 0 138 138 0 8 0 namei 1024 10193 0 10193 4 2 2 2 0 8 2 percpumem 16 56 0 10 1 0 1 1 0 8 0 kstatmem 264 42 0 20 2 0 2 2 0 8 0 scxspl 216 12775 0 12774 11 7 4 8 1 8 3 plimitpl 152 125 0 100 3 1 2 2 0 8 0 sigapl 424 907 0 850 8 0 8 8 0 8 0 futexpl 64 5025 0 5019 2 1 1 1 0 8 0 knotepl 120 628 0 0 20 0 20 20 0 8 0 kqueuepl 216 295 0 285 7 0 7 7 0 8 6 pipepl 320 162 0 135 4 0 4 4 0 8 1 fdescpl 496 888 0 850 8 1 7 7 0 8 1 filepl 152 5084 0 4838 24 3 21 21 0 8 8 lockfpl 104 94 0 91 1 0 1 1 0 8 0 lockfspl 48 38 0 35 1 0 1 1 0 8 0 sessionpl 144 42 0 26 1 0 1 1 0 8 0 pgrppl 48 63 0 39 1 0 1 1 0 8 0 ucredpl 104 987 0 969 1 0 1 1 0 8 0 zombiepl 144 852 0 850 1 0 1 1 0 8 0 processpl 1160 907 0 850 6 0 6 6 0 8 1 procpl 648 1521 0 1455 7 0 7 7 0 8 0 sosppl 168 10 0 10 2 1 1 1 0 8 1 sockpl 664 1426 0 1392 25 13 12 18 0 8 7 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 143 0 0 18 0 18 18 0 8 0 mcl2k 2048 35 0 0 5 0 5 5 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 282 0 0 18 0 18 18 0 8 0 bufpl 280 5437 0 95 382 0 382 382 0 8 0 anonpl 24 188929 0 185422 51 0 51 51 0 185 20 amapchunkpl 152 21921 0 21328 35 0 35 35 0 158 10 amappl16 200 4491 0 4478 21 11 10 13 0 8 8 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 138 0 127 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 1654 0 1616 3 0 3 3 0 8 1 amappl11 160 50 0 40 1 0 1 1 0 8 0 amappl10 152 29 0 29 1 1 0 1 0 8 0 amappl9 144 132 0 132 1 1 0 1 0 8 0 amappl8 136 31 0 29 1 0 1 1 0 8 0 amappl7 128 122 0 111 1 0 1 1 0 8 0 amappl6 120 257 0 255 1 0 1 1 0 8 0 amappl5 112 174 0 166 1 0 1 1 0 8 0 amappl4 104 351 0 334 1 0 1 1 0 8 0 amappl3 96 4348 0 4210 4 0 4 4 0 8 0 amappl2 88 901 0 836 2 0 2 2 0 8 0 amappl1 80 12085 0 11513 18 1 17 17 0 8 1 amappl 88 6277 0 6069 5 0 5 5 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 14 0 1 1 0 1 1 0 8 0 uaddrrnd 24 888 0 850 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 888 0 850 1 0 1 1 0 8 0 vmmpekpl 168 9344 0 9297 4 0 4 4 0 8 0 vmmpepl 168 64971 0 62918 113 6 107 111 0 357 12 vmsppl 440 887 0 850 6 0 6 6 0 8 0 rwobjpl 56 25160 0 21761 52 3 49 49 0 8 1 pdppl 4096 1783 0 1700 141 54 87 111 0 8 4 pvpl 32 27734 0 0 224 0 224 224 0 265 0 pmappl 248 887 0 850 5 1 4 4 0 8 1 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 445 0 72 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830716f0) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd806a4e7b40,1,0) at witness_checkorder+0x1113 sys/kern/subr_witness.c:843 rw_enter_read(fffffd806a4e7b30) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff80002a0f0410,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff80002a0f0410,ffff80002a0f0448,ffff80002a0f0470) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd806a4e7a50,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80002a0f05b0,20000100) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80002a0f05b0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff80002a0f0934,5,20000100,ffff80002a0f0968,0,37,bfc4423eed19e627) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff80003519c2a8,ffff80002a0f0aa0,ffff80002a0f09f0) at sys_sysctl+0x422 syscall(ffff80002a0f0aa0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0f0aa0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc3f67609c20, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) 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(ffffffff83628878) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83628878) at __mp_lock+0x192 sys/kern/kern_lock.c:144 single_thread_check_locked(ffff8000371bdc08,0) at single_thread_check_locked+0x2b5 sys/kern/kern_sig.c:2050 userret(ffff8000371bdc08) at userret+0x9c sys/kern/kern_sig.c:1989 recall_trap() at recall_trap+0x8 end trace frame: 0x0, count: 8 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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(ffffffff83628878) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83628878) at __mp_lock+0x192 sys/kern/kern_lock.c:144 single_thread_check_locked(ffff8000371bdc08,0) at single_thread_check_locked+0x2b5 sys/kern/kern_sig.c:2050 userret(ffff8000371bdc08) at userret+0x9c sys/kern/kern_sig.c:1989 recall_trap() at recall_trap+0x8 end trace frame: 0x0, count: -7