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 151706 55563 32767 0x10 0x4000000 1 syz-executor *515338 55563 32767 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830755fe) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd805a9db7d8,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(fffffd805a9db7d8,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter(fffffd805a9db7c8,2) at rw_enter+0x122 uvmfault_lookup(ffff80002ddba3f0,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff80002ddba3f0,ffff80002ddba428,ffff80002ddba450) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd805a9db6e8,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80002ddba590,20000120) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80002ddba590) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff80002ddba914,5,20000100,ffff80002ddba948,0,37,55a2b9be55abc9c4) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff80003417aac8,ffff80002ddbaa80,ffff80002ddba9d0) at sys_sysctl+0x422 syscall(ffff80002ddbaa80) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002ddbaa80) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 end trace frame: 0xffff80002ddbab00, 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(ffffffff830755fe) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd805a9db7d8,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(fffffd805a9db7d8,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter(fffffd805a9db7c8,2) at rw_enter+0x122 uvmfault_lookup(ffff80002ddba3f0,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff80002ddba3f0,ffff80002ddba428,ffff80002ddba450) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd805a9db6e8,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80002ddba590,20000120) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80002ddba590) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff80002ddba914,5,20000100,ffff80002ddba948,0,37,55a2b9be55abc9c4) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff80003417aac8,ffff80002ddbaa80,ffff80002ddba9d0) at sys_sysctl+0x422 syscall(ffff80002ddbaa80) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002ddbaa80) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x44248808ba0, count: -15 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002ddb9ff0 rbx 0xffffffff83417d87 cpu_info_full_primary+0x2d87 rdx 0 rcx 0xffff80003417aac8 rax 0xffffffff83416ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xb715de6b2e9084a0 r11 0xeedf8fa78979ce90 r12 0xffffffff83417b88 cpu_info_full_primary+0x2b88 r13 0 r14 0 r15 0x1 rip 0xffffffff82bb09f5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002ddb9fe0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=515338 pid=55563 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=0xffff80003417a0a8,0xffff8000341991e8 process=0xffff80003ee42d58 user=0xffff80002ddb5000, vmspace=0xfffffd805a9db6e8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 55563 320642 37659 32767 2 0x10 syz-executor 55563 151706 37659 32767 7 0x4000010 syz-executor *55563 515338 37659 32767 7 0x4000010 syz-executor 55563 176902 37659 32767 3 0x4000090 fsleep syz-executor 84735 465197 27064 0 2 0x40 syz-executor 52692 317974 45317 32767 2 0x10 syz-executor 52692 126537 45317 32767 3 0x4000090 fsleep syz-executor 35806 239800 71203 32767 2 0x10 syz-executor 35806 421865 71203 32767 3 0x4000090 kqread syz-executor 23355 228084 58322 32767 2 0x10 syz-executor 23355 437313 58322 32767 3 0x4000010 biowait syz-executor 23355 363514 58322 32767 3 0x4000090 fsleep syz-executor 23355 512816 58322 32767 3 0x4000090 fsleep syz-executor 27064 481388 15864 0 3 0x80 ppwait syz-executor 56306 454084 7722 32767 2 0x10 syz-executor 56306 227862 7722 32767 3 0x4000090 fsleep syz-executor 56306 312491 7722 32767 3 0x4000090 fsleep syz-executor 15864 370926 34863 0 3 0x82 wait syz-executor 60292 510271 69673 32767 2 0x10 syz-executor 60292 369679 69673 32767 3 0x4000090 kqread syz-executor 60292 356434 69673 32767 3 0x4000090 fsleep syz-executor 58322 349375 71519 32767 3 0x90 nanoslp syz-executor 71519 397196 34863 0 3 0x82 wait syz-executor 69673 70467 88113 32767 2 0x10 syz-executor 88113 498409 34863 0 3 0x82 wait syz-executor 7722 376244 47473 32767 3 0x90 nanoslp syz-executor 47473 189033 34863 0 3 0x82 wait syz-executor 37659 519786 89751 32767 3 0x90 nanoslp syz-executor 89751 10097 34863 0 3 0x82 wait syz-executor 45317 58887 23495 32767 3 0x90 nanoslp syz-executor 23495 359889 34863 0 3 0x82 wait syz-executor 93818 325414 84218 32767 3 0x90 wait syz-executor 84218 43973 34863 0 3 0x82 wait syz-executor 71203 405722 15213 32767 3 0x90 nanoslp syz-executor 15213 467986 34863 0 3 0x82 wait syz-executor 16730 100748 37191 32767 4 0x82010 syz-executor 16730 354526 37191 32767 3 0x4002010 suspend syz-executor 37191 31736 1 32767 3 0x90 wait syz-executor 9022 218918 0 0 3 0x14200 bored sosplice 34863 205003 98511 0 3 0x82 kqread syz-executor 98511 436453 70744 0 3 0x10008a sigsusp ksh 70744 260110 52159 0 3 0x98 kqread sshd-session 52159 195152 6341 0 3 0x92 kqread sshd-session 3585 434174 1 0 3 0x100083 ttyin getty 6341 299805 1 0 3 0x88 kqread sshd 39525 478851 34056 73 3 0x1100090 kqread syslogd 34056 215924 1 0 3 0x100082 sbwait syslogd 11713 217866 1 0 3 0x100080 kqread resolvd 61368 153050 44265 77 3 0x100092 kqread dhcpleased 91973 423406 44265 77 3 0x100092 kqread dhcpleased 44265 117018 1 0 3 0x80 kqread dhcpleased 44770 300043 0 0 3 0x14200 bored smr 54432 87710 0 0 2 0x14200 zerothread 239 46008 0 0 3 0x14200 aiodoned aiodoned 31253 26081 0 0 3 0x14200 syncer update 77526 249843 0 0 3 0x14200 cleaner cleaner 68055 191278 0 0 3 0x14200 reaper reaper 9466 492970 0 0 3 0x14200 pgdaemon pagedaemon 49216 236969 0 0 3 0x14200 bored viomb 3804 120338 0 0 3 0x40014200 acpi0 acpi0 25831 317334 0 0 3 0x40014200 idle1 13258 334596 0 0 3 0x14200 bored softnet3 69213 129864 0 0 3 0x14200 bored softnet2 32868 281519 0 0 3 0x14200 bored softnet1 83681 940 0 0 3 0x14200 bored softnet0 35539 159017 0 0 3 0x14200 bored systqmp 47817 59321 0 0 3 0x14200 bored systq 65735 136332 0 0 3 0x14200 tmoslp softclockmp 29263 206504 0 0 3 0x40014200 tmoslp softclock 90133 362886 0 0 3 0x40014200 idle0 1 174663 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 (0xffffffff83506778) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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 55563 (syz-executor) thread 0xffff80003417aac8 (515338) exclusive rwlock netlock r = 0 (0xffffffff83428030) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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 (0xffffffff835ca328) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 sysctl_vslock+0x80 sys/kern/kern_sysctl.c:181 #2 kern_sysctl+0x1b3 sys/kern/kern_sysctl.c:498 #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 rwlock sysctllk r = 0 (0xffffffff8343a1c0) #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 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 (0xffffffff83506778) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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 23355 (syz-executor) thread 0xffff800034198f50 (437313) exclusive rrwlock inode r = 0 (0xfffffd805a67ec48) #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 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:149 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd805a67e3c8) #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 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 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10194 10024K 10035K 166960K 13531 0 pcb 17 20K 22K 166960K 25 0 rtable 228 6K 7K 166960K 27981 0 pf 31 16K 16K 166960K 1549 0 ifaddr 39 14K 18K 166960K 3056 0 ifgroup 50 2K 2K 166960K 3074 0 sysctl 4 1K 2K 166960K 77 0 counters 64 36K 36K 166960K 1570 0 ioctlops 0 0K 2K 166960K 2220 0 iov 0 0K 32K 166960K 6314 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1460 92K 92K 166960K 13686 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 1115 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 2533 0 dirhash 18 3K 4K 166960K 1749 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 28 105K 157K 166960K 57691 0 sigio 0 0K 0K 166960K 1999 0 proc 56 78K 176K 166960K 27117 0 subproc 117 7K 12K 166960K 10738 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 15859 0 in_multi 88 6K 8K 166960K 11168 0 ether_multi 1 0K 0K 166960K 427 0 mrt 1 0K 0K 166960K 23 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 21301 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 302 85K 131K 166960K 499790 0 UVM aobj 131 7K 7K 166960K 157 0 pinsyscall 49 98K 126K 166960K 80116 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 4468 0 NDP 11 0K 2K 166960K 2276 0 temp 80 6825K 6952K 166960K 367772 0 kqueue 14 22K 37K 166960K 9006 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 9341 0 9338 60 59 1 5 0 8 0 rtentry 112 8968 0 8861 11 7 4 4 0 8 0 unpcb 144 60753 0 60638 183 171 12 12 0 8 7 syncache 336 622 0 622 31 30 1 1 0 8 1 tcpqe 32 289 0 289 44 43 1 1 0 8 1 tcpcb 808 35115 0 35102 297 288 9 17 0 8 6 arp 120 1548 0 1531 1 0 1 1 0 8 0 ipq 40 309 0 302 4 3 1 1 0 8 0 ipqe 40 5103 0 5095 4 3 1 1 0 8 0 inpcb 336 87711 0 87691 369 361 8 21 0 8 4 ip6q 72 51 0 51 17 17 0 1 0 8 0 ip6af 40 102 0 102 17 17 0 1 0 8 0 nd6 136 2857 0 2829 12 10 2 2 0 8 0 kcovpl 48 826 0 817 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 36405 0 35960 195 162 33 33 0 8 1 art_table 32 36406 0 35960 11 6 5 5 0 8 0 art_node 16 8967 0 8869 1 0 1 1 0 8 0 sysvmsgpl 40 40 0 0 1 0 1 1 0 8 0 semapl 112 2531 0 2521 1 0 1 1 0 8 0 shmpl 112 154 0 26 4 0 4 4 0 8 0 dirhash 1024 1190 0 1161 20 16 4 5 0 8 0 dino2pl 256 70082 0 65721 274 0 274 274 0 8 0 ffsino 272 70082 0 65721 292 0 292 292 0 8 0 nchpl 144 135878 0 132676 119 0 119 119 0 8 0 uvmvnodes 80 11275 0 0 231 0 231 231 0 8 0 vnodes 216 11275 0 0 627 0 627 627 0 8 0 namei 1024 635881 0 635880 46 45 1 3 0 8 0 percpumem 16 799 0 753 1 0 1 1 0 8 0 kstatmem 264 1528 0 1506 2 0 2 2 0 8 0 scxspl 216 542239 0 542238 106 103 3 8 1 8 2 plimitpl 152 19995 0 19970 2 0 2 2 0 8 0 sigapl 424 56721 0 56662 21 13 8 9 0 8 0 futexpl 64 723206 0 723199 25 24 1 1 0 8 0 knotepl 120 1967 0 0 26 0 26 26 0 8 0 kqueuepl 216 20812 0 20800 155 152 3 8 0 8 2 pipepl 320 10854 0 10824 130 126 4 11 0 8 0 fdescpl 496 56702 0 56662 25 19 6 7 0 8 0 filepl 152 445001 0 444644 225 203 22 26 0 8 6 lockfpl 104 17284 0 17282 14 13 1 4 0 8 0 lockfspl 48 4586 0 4584 1 0 1 1 0 8 0 sessionpl 144 1161 0 1144 1 0 1 1 0 8 0 pgrppl 48 3400 0 3375 1 0 1 1 0 8 0 ucredpl 104 104865 0 104846 1 0 1 1 0 8 0 zombiepl 144 56663 0 56662 1 0 1 1 0 8 0 processpl 1160 56721 0 56662 12 7 5 6 0 8 0 procpl 648 133910 0 133838 22 15 7 8 0 8 0 srpgc 96 23 0 23 12 11 1 1 0 8 1 sosppl 168 799 0 799 24 23 1 1 0 8 1 sockpl 664 159159 0 159023 528 508 20 29 0 8 7 mcl64k 65536 62 0 0 5 3 2 3 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 3 0 3 3 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 887 0 0 31 10 21 31 0 8 1 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 7507 0 0 424 0 424 424 0 8 0 bufpl 280 96272 0 84997 806 0 806 806 0 8 0 anonpl 24 7514696 0 7502781 657 521 136 136 0 185 23 amapchunkpl 152 1636272 0 1635345 418 368 50 52 0 158 8 amappl16 200 207361 0 207107 805 770 35 43 0 8 8 amappl15 192 19 0 19 9 9 0 1 0 8 0 amappl14 184 2434 0 2423 1 0 1 1 0 8 0 amappl13 176 39 0 38 9 8 1 1 0 8 0 amappl12 168 69702 0 69663 8 5 3 3 0 8 0 amappl11 160 54 0 43 1 0 1 1 0 8 0 amappl10 152 17 0 16 2 1 1 1 0 8 0 amappl9 144 149 0 148 2 1 1 1 0 8 0 amappl8 136 64 0 61 1 0 1 1 0 8 0 amappl7 128 2005 0 1993 1 0 1 1 0 8 0 amappl6 120 7687 0 7684 1 0 1 1 0 8 0 amappl5 112 3528 0 3518 1 0 1 1 0 8 0 amappl4 104 4535 0 4519 1 0 1 1 0 8 0 amappl3 96 293362 0 293243 7 3 4 4 0 8 0 amappl2 88 62076 0 61990 4 1 3 3 0 8 0 amappl1 80 334277 0 333721 35 20 15 18 0 8 0 amappl 88 487484 0 487239 12 6 6 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 72 156 0 26 3 0 3 3 0 8 0 uaddrrnd 24 56702 0 56662 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 56702 0 56662 1 0 1 1 0 8 0 vmmpekpl 168 513034 0 512975 7 3 4 5 0 8 0 vmmpepl 168 3581716 0 3579272 553 425 128 134 0 357 12 vmsppl 440 56701 0 56662 11 6 5 6 0 8 0 rwobjpl 56 957304 0 944728 249 64 185 185 0 8 0 pdppl 4096 113411 0 113324 1754 1667 87 113 0 8 0 pvpl 32 44610 0 0 355 1 354 354 0 265 0 pmappl 248 56701 0 56662 16 13 3 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3749 0 2584 34 0 34 34 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(ffffffff830755fe) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(fffffd805a9db7d8,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(fffffd805a9db7d8,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter(fffffd805a9db7c8,2) at rw_enter+0x122 uvmfault_lookup(ffff80002ddba3f0,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff80002ddba3f0,ffff80002ddba428,ffff80002ddba450) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(fffffd805a9db6e8,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80002ddba590,20000120) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80002ddba590) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x62 kern_sysctl(ffff80002ddba914,5,20000100,ffff80002ddba948,0,37,55a2b9be55abc9c4) at kern_sysctl+0x320 sys/kern/kern_sysctl.c:500 sys_sysctl(ffff80003417aac8,ffff80002ddbaa80,ffff80002ddba9d0) at sys_sysctl+0x422 syscall(ffff80002ddbaa80) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002ddbaa80) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x44248808ba0, 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff835ca120) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835ca120) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 vn_write(fffffd806c605ef8,ffff800036bcd038,0) at vn_write+0x4e sys/kern/vfs_vnops.c:393 dofilewritev(ffff80003417a0a8,c8,ffff800036bcd038,0,ffff800036bcd0f0) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_write(ffff80003417a0a8,ffff800036bcd1a0,ffff800036bcd0f0) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff800036bcd1a0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800036bcd1a0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x44223055630, count: 5 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff835ca120) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835ca120) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 vn_write(fffffd806c605ef8,ffff800036bcd038,0) at vn_write+0x4e sys/kern/vfs_vnops.c:393 dofilewritev(ffff80003417a0a8,c8,ffff800036bcd038,0,ffff800036bcd0f0) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_write(ffff80003417a0a8,ffff800036bcd1a0,ffff800036bcd0f0) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff800036bcd1a0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800036bcd1a0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x44223055630, count: -10