*cpu1: uvm_fault(0xffffee800cd679a8, 0x98, 0, 1) -> e ddb{0}> show kasan No such command ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7de913a70610, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800030388770 rbx 0 rdx 0 rcx 0xffff800045fe6fb0 rax 0x3b r8 0xffff8000303886a0 r9 0 r10 0x1143a0a231f21417 r11 0x7e520c203d5ddd0f r12 0 r13 0 r14 0xffff800045fe6fb0 r15 0 rip 0xffffffff81d9c3ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff8000303886f0 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=423286 pid=66550 tcnt=3 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800045fe6550,0xffff800045fe62c8 process=0xffff800045fe8e88 user=0xffff800030383000, vmspace=0xffffee800b1cbd58 estcpu=36, cpticks=6, pctcpu=0.0, user=4, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 48873 493565 93411 0 2 0 0 syz-executor 48873 338257 93411 0 7 0 0x4000000 syz-executor 70708 237854 81752 0 2 0 0 syz-executor *66550 423286 53267 0 7 0 0 syz-executor 66550 333374 53267 0 2 0 0x4000000 syz-executor 66550 306631 53267 0 3 0 0x4000080 fsleep syz-executor 35166 48379 57219 0 2 0 0 syz-executor 35166 70349 57219 0 2 0 0x4000000 syz-executor 57469 337158 63504 0 2 0 0 syz-executor 57469 470345 63504 0 3 0 0x4000080 fsleep syz-executor 62884 270125 89594 60929 2 0x10 0 syz-executor 62884 342052 89594 60929 3 0x10 0x4000080 fsleep syz-executor 62657 353187 26851 0 2 0 0 syz-executor 62657 312982 26851 0 3 0 0x4000080 ttyretype syz-executor 62657 41873 26851 0 3 0 0x4000080 fsleep syz-executor 62657 78667 26851 0 3 0 0x4000080 fsleep syz-executor 35307 272638 1 0 3 0x100003 0x80 ttyin getty 81752 138101 22882 0 3 0x2 0x80 nanoslp syz-executor 93411 341612 22882 0 3 0x2 0x80 nanoslp syz-executor 63504 126060 22882 0 3 0x2 0x80 nanoslp syz-executor 26851 436503 22882 0 3 0x2 0x80 nanoslp syz-executor 89594 57302 22882 0 3 0x2 0x80 nanoslp syz-executor 57219 90140 22882 0 3 0x2 0x80 nanoslp syz-executor 53267 160850 22882 0 3 0x2 0x80 nanoslp syz-executor 64087 460886 22882 0 3 0x2 0 biowait syz-executor 22882 468743 92905 0 3 0x2 0x80 kqread syz-executor 92905 77964 3263 0 3 0x100002 0x88 sigsusp ksh 3263 263967 14723 0 3 0x10 0x88 kqread sshd-session 14723 520021 12285 0 3 0x12 0x80 kqread sshd-session 12285 484720 1 0 3 0 0x88 kqread sshd 95613 245492 31425 74 3 0x1100012 0x80 bpf pflogd 31425 322356 1 0 3 0 0x80 sbwait pflogd 12702 124874 96478 73 3 0x1100010 0x80 kqread syslogd 96478 172400 1 0 3 0x100002 0x80 sbwait syslogd 20867 337311 1 0 3 0x100000 0x80 kqread resolvd 6450 466091 93836 77 3 0x100012 0x80 kqread dhcpleased 72903 499973 93836 77 3 0x100012 0x80 kqread dhcpleased 93836 395217 1 0 3 0 0x80 kqread dhcpleased 82436 37246 0 0 3 0x14000 0x200 bored smr 982 32210 0 0 2 0x14000 0x200 zerothread 50609 194407 0 0 3 0x14000 0x200 aiodoned aiodoned 22441 116069 0 0 3 0x14000 0x200 syncer update 57521 248844 0 0 3 0x14000 0x200 cleaner cleaner 42904 64073 0 0 3 0x14000 0x200 reaper reaper 64791 121267 0 0 3 0x14000 0x200 pgdaemon pagedaemon 98016 448807 0 0 3 0x14000 0x200 bored viomb 66638 471084 0 0 3 0x14000 0x40000200 acpi0 acpi0 86286 11470 0 0 3 0x14000 0x40000200 idle1 50660 419417 0 0 3 0x14000 0x200 bored softnet1 41657 286995 0 0 3 0x14000 0x200 bored softnet0 51300 312336 0 0 3 0x14000 0x200 bored systqmp 95098 180086 0 0 3 0x14000 0x200 bored systq 4855 379171 0 0 3 0x14000 0x200 tmoslp softclockmp 88022 6599 0 0 3 0x14000 0x40000200 tmoslp softclock 2768 443265 0 0 3 0x14000 0x40000200 idle0 1 132116 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xffffee806ce6e910) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 pmap_write_protect+0x80 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_write_protect+0x80 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:441 [inline] #2 pmap_write_protect+0x80 sys/arch/amd64/amd64/pmap.c:2173 #3 uvm_map_protect+0xb95 pmap_protect sys/arch/amd64/compile/SYZKALLER/obj/machine/pmap.h:481 [inline] #3 uvm_map_protect+0xb95 sys/uvm/uvm_map.c:3202 #4 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 Process 48873 (syz-executor) thread 0xffff800045fe6d18 (338257) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a3ce40) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 #2 Xsyscall+0x128 Process 66550 (syz-executor) thread 0xffff800045fe6fb0 (423286) exclusive rwlock uobjlk r = 0 (0xffffee806de195f8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 uvm_map_protect+0xb36 sys/uvm/uvm_map.c:3202 #3 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #5 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xffffee800b1cbe58) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5170 #3 uvm_map_protect+0xe0 sys/uvm/uvm_map.c:3075 #4 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 exclusive mutex &pmap->pm_mtx r = 0 (0xffffee806ce6e910) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 pmap_write_protect+0x80 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_write_protect+0x80 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:441 [inline] #2 pmap_write_protect+0x80 sys/arch/amd64/amd64/pmap.c:2173 #3 uvm_map_protect+0xb95 pmap_protect sys/arch/amd64/compile/SYZKALLER/obj/machine/pmap.h:481 [inline] #3 uvm_map_protect+0xb95 sys/uvm/uvm_map.c:3202 #4 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 Process 64087 (syz-executor) thread 0xffff800045ffd760 (460886) exclusive rrwlock inode r = 0 (0xffffee806cbc6b30) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd 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:150 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3063 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xffffee8074c78428) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431 #6 namei+0x7c5 sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3048 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11070 12163K 12408K 166960K 12272 0 pcb 18 12K 12K 166960K 37 0 rtable 246 8K 8K 166960K 371 0 pf 39 18K 18K 166960K 54 0 ifaddr 45 7K 7K 166960K 48 0 ifgroup 59 2K 2K 166960K 64 0 sysctl 4 1K 9K 166960K 8 0 counters 76 37K 37K 166960K 78 0 ioctlops 0 0K 4K 166960K 1533 0 iov 0 0K 16K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1296 82K 82K 166960K 1445 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 0K 166960K 5 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 17 61K 93K 166960K 230 0 sigio 0 0K 0K 166960K 1 0 proc 73 131K 180K 166960K 572 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 8 0 in_multi 99 6K 6K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 397 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 225 167K 183K 166960K 3869 0 UVM aobj 6 2K 2K 166960K 6 0 pinsyscall 42 84K 107K 166960K 1390 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 14 0K 2K 166960K 31 0 temp 37 9118K 9134K 166960K 6993 0 kqueue 14 22K 26K 166960K 40 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 100 0 97 3 0 3 3 0 8 2 rtentry 176 111 0 1 5 0 5 5 0 8 0 unpcb 144 122 0 103 3 0 3 3 0 8 2 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 61 0 57 4 0 4 4 0 8 3 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 164 0 154 4 0 4 4 0 8 2 nd6 152 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 3 0 0 1 0 1 1 0 8 0 pfstscr 40 2 0 0 1 0 1 1 0 8 0 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 1 1 0 1 1 0 8 0 pffrent 40 4 0 2 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 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pfstitem 24 26 0 0 1 0 1 1 0 8 0 pfstkey 128 26 0 0 1 0 1 1 0 8 0 pfstate 448 25 0 0 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 453 0 0 29 0 29 29 0 8 0 art_table 40 454 0 0 5 0 5 5 0 8 0 art_node 32 111 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 1 0 1 1 0 8 1 semapl 72 3 0 0 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1743 0 274 93 0 93 93 0 8 0 ffsino 296 1743 0 274 114 0 114 114 0 8 0 nchpl 144 2063 0 358 64 0 64 64 0 8 0 rtmask 32 1 0 0 1 0 1 1 0 8 0 vnodes 216 1877 0 0 105 0 105 105 0 8 0 namei 1024 6501 0 6500 2 0 2 2 0 8 1 percpumem 16 55 0 1 1 0 1 1 0 8 0 kstatmem 264 33 0 2 3 0 3 3 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 7327 0 7326 9 2 7 7 1 8 6 plimitpl 152 46 0 28 1 0 1 1 0 8 0 sigapl 424 548 0 501 7 0 7 7 0 8 1 knotepl 120 516 0 0 16 0 16 16 0 8 0 kqueuepl 224 47 0 35 1 0 1 1 0 8 0 pipepl 344 131 0 104 3 0 3 3 0 8 0 fdescpl 528 532 0 501 3 0 3 3 0 8 0 filepl 160 2277 0 2046 14 0 14 14 0 8 4 lockfpl 104 129 0 126 1 0 1 1 0 8 0 lockfspl 48 29 0 26 1 0 1 1 0 8 0 sessionpl 144 30 0 21 1 0 1 1 0 8 0 pgrppl 48 38 0 21 1 0 1 1 0 8 0 ucredpl 104 227 0 213 1 0 1 1 0 8 0 zombiepl 144 501 0 501 1 0 1 1 0 8 1 processpl 1232 548 0 501 5 0 5 5 0 8 1 procpl 664 713 0 657 6 0 6 6 0 8 0 sockpl 752 388 0 356 14 2 12 14 0 8 8 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 117 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mextrefs 64 18 0 0 1 0 1 1 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 124 0 0 8 0 8 8 0 8 0 bufpl 272 2544 0 105 163 0 163 163 0 8 0 anonpl 32 3725 0 0 31 0 31 31 0 247 0 amapchunkpl 152 11349 0 10897 34 0 34 34 0 158 13 amappl16 200 1689 0 1663 5 3 2 5 0 8 0 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 430 0 428 1 0 1 1 0 8 0 amappl13 176 122 0 110 1 0 1 1 0 8 0 amappl12 168 788 0 759 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 68 0 54 1 0 1 1 0 8 0 amappl9 144 345 0 345 1 1 0 1 0 8 0 amappl8 136 113 0 111 1 0 1 1 0 8 0 amappl7 128 148 0 134 1 0 1 1 0 8 0 amappl6 120 159 0 157 1 0 1 1 0 8 0 amappl5 112 97 0 85 1 0 1 1 0 8 0 amappl4 104 299 0 277 1 0 1 1 0 8 0 amappl3 96 1971 0 1882 3 0 3 3 0 8 0 amappl2 88 651 0 573 2 0 2 2 0 8 0 amappl1 80 10803 0 10192 15 0 15 15 0 8 2 amappl 88 3124 0 2971 5 0 5 5 0 92 1 uvmvnodes 80 101 0 0 3 0 3 3 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 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 532 0 501 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 532 0 501 1 0 1 1 0 8 0 vmmpekpl 168 6377 0 6346 2 0 2 2 0 8 0 vmmpepl 168 42731 0 40827 87 0 87 87 0 357 1 vmsppl 488 531 0 501 5 0 5 5 0 8 1 rwobjpl 80 15371 0 14337 24 0 24 24 0 8 1 pdppl 4096 1071 0 1002 95 24 71 85 0 8 2 pvpl 32 11021 0 0 89 0 89 89 0 265 0 pmappl 256 531 0 501 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 430 0 27 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7de913a70610, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff80002999dff0) 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:682 acpitimer_delay(1) at acpitimer_delay+0x194 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline] acpitimer_delay(1) at acpitimer_delay+0x194 sys/dev/acpi/acpitimer.c:125 comcnputc(800,74) at comcnputc+0x29b sys/dev/ic/com.c:1274 cnputc(74) at cnputc+0x67 sys/dev/cons.c:218 kputchar(74,5,0) at kputchar+0x2ed sys/kern/subr_prf.c:367 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 printf(ffffffff83566613) at printf+0x8b sys/kern/subr_prf.c:529 trap_print(ffff800038ba5c40,6) at trap_print+0x70 sys/arch/amd64/amd64/trap.c:661 kerntrap(ffff800038ba5c40) at kerntrap+0x2e6 sys/arch/amd64/amd64/trap.c:524 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff800045fe6d18,ffffee806ce91948,ffff800038ba5e00) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 end trace frame: 0xffff800038ba5e70, count: 0 ddb{1}> trace x86_ipi_db(ffff80002999dff0) 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:682 acpitimer_delay(1) at acpitimer_delay+0x194 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline] acpitimer_delay(1) at acpitimer_delay+0x194 sys/dev/acpi/acpitimer.c:125 comcnputc(800,74) at comcnputc+0x29b sys/dev/ic/com.c:1274 cnputc(74) at cnputc+0x67 sys/dev/cons.c:218 kputchar(74,5,0) at kputchar+0x2ed sys/kern/subr_prf.c:367 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 printf(ffffffff83566613) at printf+0x8b sys/kern/subr_prf.c:529 trap_print(ffff800038ba5c40,6) at trap_print+0x70 sys/arch/amd64/amd64/trap.c:661 kerntrap(ffff800038ba5c40) at kerntrap+0x2e6 sys/arch/amd64/amd64/trap.c:524 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff800045fe6d18,ffffee806ce91948,ffff800038ba5e00) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 sys_futimens(ffff800045fe6d18,ffff800038ba5f50,ffff800038ba5ea0) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2767 syscall(ffff800038ba5f50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038ba5f50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5df7f7131c0, count: -17