*cpu1: uvm_fault(0xfffffd805f2a0d58, 0x0, 0, 1) -> e ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7d3acafa7f0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000307dcbf0 rbx 0 rdx 0xffff800000045100 rcx 0xffff80003c409c58 rax 0x32 r8 0xffff8000307dcb20 r9 0 r10 0xefad86f34b090dbc r11 0x82f5df61667c99f3 r12 0 r13 0 r14 0xffff80003c409c58 r15 0 rip 0xffffffff830a43ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff8000307dcb70 ss 0x10 savectx+0xae: movl $0,%gs:0x680 ddb{0}> show proc PROC (syz-executor) tid=243628 pid=15651 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c4087d8,0xffff80003c4082c8 process=0xffff8000fffe4028 user=0xffff8000307d7000, vmspace=0xfffffd805eece3f0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 15651 182536 45712 0 2 0 syz-executor *15651 243628 45712 0 7 0x4000000 syz-executor 33974 376154 9544 0 3 0x80 nanoslp syz-executor 33974 384792 9544 0 3 0x4000080 kqread syz-executor 33974 277688 9544 0 3 0x4000000 biowait syz-executor 45833 314908 3905 0 3 0x80 nanoslp syz-executor 45833 302106 3905 0 3 0x4000080 fsleep syz-executor 45833 852 3905 0 3 0x4000080 kqread syz-executor 45833 209616 3905 0 3 0x4000080 fsleep syz-executor 87191 342936 51475 0 3 0x80 nanoslp syz-executor 87191 17976 51475 0 3 0x4000080 kqread syz-executor 87191 393902 51475 0 3 0x4000080 fsleep syz-executor 56749 391270 0 0 3 0x14200 acct acct 3905 264354 13375 0 3 0x82 nanoslp syz-executor 53443 240476 13375 0 3 0x82 nanoslp syz-executor 9544 173910 13375 0 3 0x82 nanoslp syz-executor 89391 215102 1 0 3 0x100083 ttyin getty 51475 83037 13375 0 3 0x82 nanoslp syz-executor 75980 522656 0 0 3 0x14280 nfsidl nfsio 53479 98843 0 0 3 0x14280 nfsidl nfsio 73073 507105 0 0 3 0x14280 nfsidl nfsio 16747 101866 0 0 3 0x14280 nfsidl nfsio 98368 180438 0 0 3 0x14280 nfsidl nfsio 41721 336946 0 0 3 0x14280 nfsidl nfsio 52557 287161 0 0 3 0x14280 nfsidl nfsio 80318 295412 0 0 3 0x14280 nfsidl nfsio 70466 200431 0 0 3 0x14280 nfsidl nfsio 41425 50027 0 0 3 0x14280 nfsidl nfsio 93727 368279 0 0 3 0x14280 nfsidl nfsio 86387 136369 0 0 3 0x14280 nfsidl nfsio 62631 239514 0 0 3 0x14280 nfsidl nfsio 46627 140505 0 0 3 0x14280 nfsidl nfsio 47225 390959 0 0 3 0x14280 nfsidl nfsio 31382 253074 0 0 3 0x14280 nfsidl nfsio 8243 194254 0 0 3 0x14280 nfsidl nfsio 21501 216774 0 0 3 0x14280 nfsidl nfsio 87780 484702 0 0 3 0x14280 nfsidl nfsio 52423 196546 0 0 3 0x14280 nfsidl nfsio 80690 365103 0 0 3 0x14200 bored sosplice 33945 242845 13375 0 3 0x82 nanoslp syz-executor 74699 15873 13375 0 2 0x2 syz-executor 90165 198252 13375 0 3 0x2 biowait syz-executor 45712 498482 13375 0 3 0x82 nanoslp syz-executor 13375 160302 25808 0 3 0x82 kqread syz-executor 25808 439809 63467 0 3 0x10008a sigsusp ksh 63467 269855 90810 0 3 0x98 kqread sshd-session 90810 335322 18330 0 3 0x92 kqread sshd-session 18330 50140 1 0 3 0x88 kqread sshd 45408 513170 14600 74 3 0x1100092 bpf pflogd 14600 337589 1 0 3 0x80 sbwait pflogd 7777 434027 73843 73 3 0x1100090 kqread syslogd 73843 421817 1 0 3 0x100082 sbwait syslogd 87779 168808 1 0 3 0x100080 kqread resolvd 95383 398378 37063 77 3 0x100092 kqread dhcpleased 55768 28480 37063 77 3 0x100092 kqread dhcpleased 37063 435643 1 0 3 0x80 kqread dhcpleased 93058 10605 0 0 3 0x14200 bored smr 73540 427244 0 0 2 0x14200 zerothread 36254 372144 0 0 3 0x14200 aiodoned aiodoned 27423 112951 0 0 3 0x14200 syncer update 68323 507534 0 0 3 0x14200 cleaner cleaner 39574 154612 0 0 3 0x14200 reaper reaper 18760 375468 0 0 3 0x14200 pgdaemon pagedaemon 1618 100124 0 0 3 0x14200 bored viomb 68640 130861 0 0 3 0x40014200 acpi0 acpi0 77708 242163 0 0 3 0x40014200 idle1 16486 300984 0 0 3 0x14200 bored softnet3 1333 523810 0 0 3 0x14200 bored softnet2 74196 518678 0 0 3 0x14200 bored softnet1 11256 434237 0 0 3 0x14200 bored softnet0 96107 403336 0 0 3 0x14200 bored systqmp 6120 399387 0 0 3 0x14200 bored systq 11151 224090 0 0 3 0x14200 tmoslp softclockmp 39334 231913 0 0 3 0x40014200 tmoslp softclock 52533 40834 0 0 3 0x40014200 idle0 1 297969 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806bccbc10) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_write_protect+0x87 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_write_protect+0x87 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_write_protect+0x87 sys/arch/amd64/amd64/pmap.c:2163 #4 uvm_map_protect+0xbcd pmap_protect machine/pmap.h:482 [inline] #4 uvm_map_protect+0xbcd sys/uvm/uvm_map.c:3184 #5 sys_mprotect+0x34c sys/uvm/uvm_mmap.c:590 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 Process 15651 (syz-executor) thread 0xffff80003c409c58 (243628) exclusive rwlock vmmaplk r = 0 (0xfffffd805eece4f0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3057 #4 sys_mprotect+0x34c sys/uvm/uvm_mmap.c:590 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #6 Xsyscall+0x128 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806bccbc10) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_write_protect+0x87 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_write_protect+0x87 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_write_protect+0x87 sys/arch/amd64/amd64/pmap.c:2163 #4 uvm_map_protect+0xbcd pmap_protect machine/pmap.h:482 [inline] #4 uvm_map_protect+0xbcd sys/uvm/uvm_map.c:3184 #5 sys_mprotect+0x34c sys/uvm/uvm_mmap.c:590 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 Process 33974 (syz-executor) thread 0xffff80003c4082b8 (277688) exclusive rrwlock inode r = 0 (0xfffffd80717270c8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #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_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1732 #8 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 #9 VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 #10 domknodat+0x47e sys/kern/vfs_syscalls.c:1636 #11 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807ad14408) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1588 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 74699 (syz-executor) thread 0xffff80002a2a5498 (15873) exclusive rwlock vmmaplk r = 0 (0xfffffd807eb8d100) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvmspace_fork+0x44 sys/uvm/uvm_map.c:3811 #4 process_new+0x572 sys/kern/kern_fork.c:282 #5 fork1+0x3ea sys/kern/kern_fork.c:408 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 Process 90165 (syz-executor) thread 0xffff80002a2a4f78 (198252) exclusive rrwlock inode r = 0 (0xfffffd807ad149a8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 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:1864 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807ad14d08) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:693 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x21b 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:1864 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10233 11178K 11443K 166960K 14938 0 pcb 18 16K 18K 166960K 610 0 rtable 243 11K 11K 166960K 942 0 pf 39 18K 21K 166960K 218 0 ifaddr 44 8K 9K 166960K 154 0 ifgroup 61 2K 2K 166960K 280 0 sysctl 4 1K 9K 166960K 17 0 counters 70 37K 37K 166960K 298 0 ioctlops 0 0K 8K 166960K 1995 0 iov 0 0K 16K 166960K 93 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1457 92K 92K 166960K 3618 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 26 0 VM map 2 1K 1K 166960K 2 0 sem 26 28K 44K 166960K 57 0 dirhash 12 2K 2K 166960K 66 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 110K 166960K 2335 0 sigio 0 0K 0K 166960K 53 0 proc 72 91K 140K 166960K 926 0 subproc 72 4K 4K 166960K 127 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 282 0 in_multi 88 6K 7K 166960K 236 0 ether_multi 1 0K 0K 166960K 21 0 mrt 3 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 747 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 250 162K 178K 166960K 22538 0 UVM aobj 46 2K 4K 166960K 52 0 pinsyscall 42 84K 102K 166960K 3626 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 130 0 NDP 14 0K 2K 166960K 111 0 temp 114 8672K 8800K 166960K 84062 0 kqueue 15 22K 30K 166960K 413 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 255 0 252 4 3 1 3 0 8 0 rtentry 176 267 0 164 6 0 6 6 0 8 0 unpcb 144 1933 0 1916 18 16 2 7 0 8 1 syncache 336 12 0 12 4 4 0 1 0 8 0 tcpcb 808 813 0 807 25 24 1 11 0 8 0 arp 128 39 0 18 1 0 1 1 0 8 0 inpcb 384 2500 0 2488 39 37 2 14 0 8 0 nd6 144 51 0 26 2 0 2 2 0 8 0 pkpcb 40 24 0 24 5 4 1 1 0 8 1 kcovpl 48 14 0 6 1 0 1 1 0 8 0 ppxss 1192 84 0 83 4 3 1 1 0 8 0 pppxif 1504 8 0 8 5 4 1 1 0 8 1 pfstscr 40 2 0 2 2 2 0 1 0 8 0 pffrag 232 14 0 6 1 0 1 1 0 482 0 pffrnode 88 13 0 6 1 0 1 1 0 8 0 pffrent 40 87 0 78 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstitem 24 134 0 61 1 0 1 1 0 8 0 pfstkey 128 137 0 64 3 0 3 3 0 8 0 pfstate 384 136 0 63 8 0 8 8 0 8 0 pfrule 1344 23 0 18 2 1 1 2 0 8 0 rttmr 136 3 0 3 3 3 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 986 0 546 40 10 30 31 0 8 0 art_table 32 989 0 546 4 0 4 4 0 8 0 art_node 16 227 0 139 1 0 1 1 0 8 0 sysvmsgpl 40 43 0 39 1 0 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 46 0 22 1 0 1 1 0 8 0 shmpl 112 49 0 6 2 0 2 2 0 8 0 dirhash 1024 54 0 37 3 0 3 3 0 8 0 dino2pl 256 5855 0 4334 96 0 96 96 0 8 0 ffsino 288 5855 0 4334 110 0 110 110 0 8 0 nchpl 144 9096 0 8544 64 38 26 64 0 8 0 rtmask 32 12 0 12 5 5 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 33680 0 33679 7 6 1 2 0 8 0 percpumem 16 164 0 114 1 0 1 1 0 8 0 kstatmem 264 168 0 136 5 2 3 3 0 8 0 scsiplug 72 14 0 14 6 6 0 1 0 8 0 scxspl 216 28034 0 28032 15 13 2 8 1 8 1 plimitpl 152 489 0 471 1 0 1 1 0 8 0 sigapl 424 2661 0 2590 10 1 9 9 0 8 0 knotepl 120 611 0 0 17 0 17 17 0 8 0 kqueuepl 224 998 0 985 18 17 1 8 0 8 0 pipepl 336 351 0 321 6 3 3 6 0 8 0 fdescpl 520 2612 0 2581 3 0 3 3 0 8 0 filepl 160 18626 0 18392 43 29 14 20 0 8 2 lockfpl 104 784 0 779 2 1 1 2 0 8 0 lockfspl 48 343 0 338 1 0 1 1 0 8 0 sessionpl 144 35 0 26 1 0 1 1 0 8 0 pgrppl 48 241 0 224 1 0 1 1 0 8 0 ucredpl 104 3531 0 3518 1 0 1 1 0 8 0 zombiepl 144 3045 0 3043 2 1 1 1 0 8 0 processpl 1208 2661 0 2590 6 0 6 6 0 8 0 procpl 656 6303 0 6224 8 0 8 8 0 8 0 srpgc 96 17 0 17 5 5 0 1 0 8 0 sosppl 168 6 0 6 4 3 1 1 0 8 1 sockpl 728 4761 0 4730 61 55 6 18 0 8 2 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 111 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 69 0 0 9 0 9 9 0 8 0 mtagpl 96 141 0 0 4 0 4 4 0 8 0 mbufpl 256 1201 0 0 76 0 76 76 0 8 0 bufpl 280 8126 0 1984 439 0 439 439 0 8 0 anonpl 32 11801 0 0 95 0 95 95 0 246 0 amapchunkpl 152 77214 0 76630 57 29 28 36 0 158 2 amappl16 200 6643 0 6573 59 47 12 24 0 8 1 amappl15 192 5 0 5 2 2 0 1 0 8 0 amappl14 184 157 0 145 1 0 1 1 0 8 0 amappl13 176 74 0 74 2 2 0 1 0 8 0 amappl12 168 3369 0 3339 4 2 2 3 0 8 0 amappl11 160 59 0 45 1 0 1 1 0 8 0 amappl10 152 8 0 7 2 1 1 1 0 8 0 amappl9 144 291 0 291 1 1 0 1 0 8 0 amappl8 136 28 0 25 1 0 1 1 0 8 0 amappl7 128 129 0 116 1 0 1 1 0 8 0 amappl6 120 250 0 245 1 0 1 1 0 8 0 amappl5 112 153 0 143 1 0 1 1 0 8 0 amappl4 104 386 0 366 1 0 1 1 0 8 0 amappl3 96 15885 0 15773 4 0 4 4 0 8 0 amappl2 88 795 0 732 2 0 2 2 0 8 0 amappl1 80 19242 0 18633 16 1 15 15 0 8 0 amappl 88 21266 0 21090 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 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 8 0 8 3 2 1 1 0 8 1 dma128 128 258 0 258 6 6 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 51 0 6 1 0 1 1 0 8 0 uaddrrnd 24 2612 0 2581 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2612 0 2581 1 0 1 1 0 8 0 vmmpekpl 168 20353 0 20295 5 2 3 3 0 8 0 vmmpepl 168 167186 0 165158 117 14 103 109 0 357 0 vmsppl 480 2611 0 2581 8 3 5 5 0 8 0 rwobjpl 72 47747 0 40777 135 4 131 132 0 8 1 pdppl 4096 5231 0 5162 149 78 71 83 0 8 2 pvpl 32 19079 0 0 154 0 154 154 0 265 0 pmappl 256 2611 0 2581 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 555 0 130 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7d3acafa7f0, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:666 acpitimer_delay(1) at acpitimer_delay+0xb7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline] acpitimer_delay(1) at acpitimer_delay+0xb7 sys/dev/acpi/acpitimer.c:120 comcnputc(800,70) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(70) at cnputc+0x61 sys/dev/cons.c:218 kputchar(70,5,0) at kputchar+0x2cc sys/kern/subr_prf.c:367 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 printf(ffffffff83440a76) at printf+0x8b sys/kern/subr_prf.c:529 trap_print(ffff80003c447150,6) at trap_print+0x70 sys/arch/amd64/amd64/trap.c:457 kerntrap(ffff80003c447150) at kerntrap+0x276 sys/arch/amd64/amd64/trap.c:328 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001466000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579 end trace frame: 0xffff80003c447280, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:666 acpitimer_delay(1) at acpitimer_delay+0xb7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline] acpitimer_delay(1) at acpitimer_delay+0xb7 sys/dev/acpi/acpitimer.c:120 comcnputc(800,70) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(70) at cnputc+0x61 sys/dev/cons.c:218 kputchar(70,5,0) at kputchar+0x2cc sys/kern/subr_prf.c:367 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 printf(ffffffff83440a76) at printf+0x8b sys/kern/subr_prf.c:529 trap_print(ffff80003c447150,6) at trap_print+0x70 sys/arch/amd64/amd64/trap.c:457 kerntrap(ffff80003c447150) at kerntrap+0x276 sys/arch/amd64/amd64/trap.c:328 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001466000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579 dtclose(11e5f,1,2000,ffff8000ffff19c0) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff8000ffff19c0) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c447300) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805d73b878,1,fffffd807f7d3548,ffff8000ffff19c0) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805f33b490,ffff8000ffff19c0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805f33b490,ffff8000ffff19c0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805f33b490,ffff8000ffff19c0) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd805f33b490,ffff8000ffff19c0) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff8000ffff19c0) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff8000ffff19c0,0,0,1) at exit1+0x58f sys/kern/kern_exit.c:214 sys_exit(ffff8000ffff19c0,ffff80003c447670,ffff80003c4475c0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c447670) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c447670) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x759fbcd8ee00, count: -25