*cpu1: uvm_fault(0xfffff6800eb57020, 0x98, 0, 1) -> e ddb{0}> show kasan No such command ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7f1dff13cff0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800039ba9b00 rbx 0 rdx 0 rcx 0xffff80003c4a2800 rax 0x2a r8 0xffff800039ba9a30 r9 0 r10 0xe2b59f0eeba3a275 r11 0x1ad41a453ba05d7f r12 0 r13 0 r14 0 r15 0 rip 0xffffffff82c644c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff800039ba9a80 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=314521 pid=3616 tcnt=2 stat=onproc flags process=0 proc=0 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003b7b9778,0xffff80003c4a3cd0 process=0xffff80003c4839e8 user=0xffff800039ba4000, vmspace=0xfffff6800eb57020 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 27572 349930 24451 0 2 0 0 syz-executor * 3616 314521 12299 0 7 0 0 syz-executor 3616 43909 12299 0 7 0 0x4000000 syz-executor 4639 506797 78351 60929 2 0x10 0 syz-executor 4639 229217 78351 60929 3 0x10 0x4000080 kqsel syz-executor 1219 293358 3225 -1 3 0x10 0x80 nanoslp syz-executor 1219 43823 3225 -1 3 0x10 0x4000080 ttyin syz-executor 1219 292826 3225 -1 3 0x10 0x4000080 fsleep syz-executor 67913 408587 97509 0 3 0x2 0 biowait syz-executor 61871 21411 44494 0 3 0 0x80 nanoslp syz-executor 61871 6135 44494 0 3 0 0x4000080 ttyout syz-executor 55379 69567 1012 0 3 0 0x80 nanoslp syz-executor 55379 103924 1012 0 3 0 0x4000080 ttyout syz-executor 25414 122377 62396 0 3 0 0x80 nanoslp syz-executor 25414 428439 62396 0 3 0 0x4000080 sbwait syz-executor 25414 406827 62396 0 3 0 0x4000080 fsleep syz-executor 62396 495283 97509 0 3 0x2 0x80 nanoslp syz-executor 24451 22004 97509 0 3 0x2 0x80 nanoslp syz-executor 9575 304291 0 0 3 0x14000 0x280 nfsidl nfsio 18889 380320 0 0 3 0x14000 0x280 nfsidl nfsio 3023 222635 0 0 3 0x14000 0x280 nfsidl nfsio 46927 174959 0 0 3 0x14000 0x280 nfsidl nfsio 77793 113583 0 0 3 0x14000 0x280 nfsidl nfsio 314 48441 0 0 3 0x14000 0x280 nfsidl nfsio 53259 127695 0 0 3 0x14000 0x280 nfsidl nfsio 87560 21179 0 0 3 0x14000 0x280 nfsidl nfsio 2357 412051 0 0 3 0x14000 0x280 nfsidl nfsio 78593 337306 0 0 3 0x14000 0x280 nfsidl nfsio 89428 74716 0 0 3 0x14000 0x280 nfsidl nfsio 36066 6784 0 0 3 0x14000 0x280 nfsidl nfsio 81704 238775 0 0 3 0x14000 0x280 nfsidl nfsio 22263 408191 0 0 3 0x14000 0x280 nfsidl nfsio 75080 409342 0 0 3 0x14000 0x280 nfsidl nfsio 86017 260468 0 0 3 0x14000 0x280 nfsidl nfsio 16961 521942 0 0 3 0x14000 0x280 nfsidl nfsio 81212 103737 0 0 3 0x14000 0x280 nfsidl nfsio 36354 119390 0 0 3 0x14000 0x280 nfsidl nfsio 4759 195317 0 0 3 0x14000 0x280 nfsidl nfsio 3225 31452 97509 0 3 0x2 0x80 nanoslp syz-executor 44494 215754 97509 0 3 0x2 0x80 nanoslp syz-executor 12299 200035 97509 0 3 0x2 0x80 nanoslp syz-executor 78351 297745 97509 0 3 0x2 0x80 nanoslp syz-executor 1012 285821 97509 0 3 0x2 0x80 nanoslp syz-executor 97509 82615 91809 0 3 0x2 0x80 kqread syz-executor 91809 208172 53621 0 3 0x100002 0x88 sigsusp ksh 53621 81114 96395 0 3 0x10 0x88 kqread sshd-session 96395 290566 83950 0 3 0x12 0x80 kqread sshd-session 50753 495969 1 0 3 0x100003 0x80 ttyin getty 83950 319343 1 0 3 0 0x88 kqread sshd 25204 225051 47738 74 3 0x1100012 0x80 bpf pflogd 47738 165363 1 0 3 0 0x80 sbwait pflogd 65705 497631 2474 73 3 0x1100010 0x80 kqread syslogd 2474 223471 1 0 3 0x100002 0x80 sbwait syslogd 88701 445441 1 0 3 0x100000 0x80 kqread resolvd 95067 315712 45109 77 3 0x100012 0x80 kqread dhcpleased 32509 80605 45109 77 3 0x100012 0x80 kqread dhcpleased 45109 300905 1 0 3 0 0x80 kqread dhcpleased 97492 135232 0 0 3 0x14000 0x200 bored smr 92005 239203 0 0 3 0x14000 0x200 pgzero zerothread 67865 314830 0 0 3 0x14000 0x200 aiodoned aiodoned 10900 364759 0 0 3 0x14000 0x200 syncer update 51428 69273 0 0 3 0x14000 0x200 cleaner cleaner 73898 183665 0 0 3 0x14000 0x200 reaper reaper 12273 418278 0 0 3 0x14000 0x200 pgdaemon pagedaemon 6857 376442 0 0 3 0x14000 0x200 bored viomb 71532 192929 0 0 3 0x14000 0x40000200 acpi0 acpi0 25109 135622 0 0 3 0x14000 0x40000200 idle1 72989 360726 0 0 3 0x14000 0x200 bored softnet1 31981 19485 0 0 3 0x14000 0x200 bored softnet0 59091 368203 0 0 3 0x14000 0x200 smrbar systqmp 68324 59848 0 0 3 0x14000 0x200 bored systq 98421 3807 0 0 3 0x14000 0x200 tmoslp softclockmp 54441 281293 0 0 3 0x14000 0x40000200 tmoslp softclock 74444 203472 0 0 3 0x14000 0x40000200 idle0 1 165987 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 (0xfffff6806cabf410) #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_enter+0x24b rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_enter+0x24b pmap_map_ptes sys/arch/amd64/amd64/pmap.c:441 [inline] #2 pmap_enter+0x24b sys/arch/amd64/amd64/pmap.c:2777 #3 uvm_fault_lower+0x5d6 sys/uvm/uvm_fault.c:1504 #4 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 Process 3616 (syz-executor) thread 0xffff80003c4a2800 (314521) exclusive rwlock amaplk r = 0 (0xfffff6806c9f26c8) #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_fault_check+0x8a9 sys/uvm/uvm_fault.c:834 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffff6800eb57120) #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_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffff6806cabf410) #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_enter+0x24b rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_enter+0x24b pmap_map_ptes sys/arch/amd64/amd64/pmap.c:441 [inline] #2 pmap_enter+0x24b sys/arch/amd64/amd64/pmap.c:2777 #3 uvm_fault_lower+0x5d6 sys/uvm/uvm_fault.c:1504 #4 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 Process 3616 (syz-executor) thread 0xffff80003c4a22d0 (43909) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a82180) #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 67913 (syz-executor) thread 0xffff80003c4a2038 (408587) exclusive rrwlock inode r = 0 (0xfffff6806d0ec8d8) #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 (0xfffff6806caf7d80) #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 Process 59091 (systqmp) thread 0xffff800045ffe298 (368203) shared rwlock systqmp r = 0 (0xffffffff838f7e88) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11050 12084K 12348K 166960K 12292 0 pcb 17 12K 12K 166960K 67 0 rtable 137 5K 8K 166960K 485 0 pf 28 16K 24K 166960K 120 0 ifaddr 23 3K 7K 166960K 61 0 ifgroup 35 1K 2K 166960K 71 0 sysctl 3 1K 9K 166960K 7 0 counters 60 35K 37K 166960K 88 0 ioctlops 0 0K 4K 166960K 1582 0 iov 0 0K 12K 166960K 6 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1294 81K 82K 166960K 1645 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 4 9K 9K 166960K 18 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 17 0 dirhash 12 2K 2K 166960K 42 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 17 61K 89K 166960K 586 0 proc 72 115K 164K 166960K 668 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 94 0 in_multi 44 2K 6K 166960K 134 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 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 486 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 226 167K 176K 166960K 6690 0 UVM aobj 20 2K 2K 166960K 21 0 pinsyscall 42 84K 102K 166960K 1820 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 17 0 NDP 9 0K 2K 166960K 39 0 temp 35 9114K 9130K 166960K 14844 0 kqueue 13 20K 30K 166960K 96 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 75 0 72 1 0 1 1 0 8 0 rtentry 176 146 0 91 6 0 6 6 0 8 3 unpcb 144 223 0 204 4 1 3 4 0 8 2 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 115 0 111 7 1 6 7 0 8 5 arp 136 24 0 16 1 0 1 1 0 8 0 inpcb 328 430 0 422 7 1 6 7 0 8 5 nd6 152 34 0 25 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1192 6 0 6 1 0 1 1 0 8 1 pfstscr 40 31 0 28 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 1431 0 1007 5 0 5 5 0 8 0 pfosfpen 112 1431 0 716 21 0 21 21 0 8 0 pfsrclim 320 6 0 5 1 0 1 1 0 8 0 pfanchor 1288 9 0 0 1 0 1 1 0 8 0 pfstitem 24 47 0 7 1 0 1 1 0 8 0 pfstkey 128 80 0 40 2 0 2 2 0 8 0 pfstate 448 57 0 20 5 0 5 5 0 8 0 pfrule 1360 22 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 596 0 361 29 6 23 29 0 8 8 art_table 40 597 0 361 5 0 5 5 0 8 2 art_node 32 145 0 94 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 72 14 0 6 1 0 1 1 0 8 0 shmpl 112 18 0 1 1 0 1 1 0 8 0 dirhash 1024 37 0 20 3 0 3 3 0 8 0 dino2pl 256 2308 0 830 93 0 93 93 0 8 0 ffsino 296 2308 0 830 114 0 114 114 0 8 0 nchpl 144 3032 0 1322 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 vnodes 216 2567 0 0 143 0 143 143 0 8 0 namei 1024 10135 0 10134 1 0 1 1 0 8 0 percpumem 16 60 0 14 1 0 1 1 0 8 0 kstatmem 264 37 0 20 2 0 2 2 0 8 0 scxspl 216 13135 0 13134 7 3 4 4 1 8 3 plimitpl 152 122 0 103 1 0 1 1 0 8 0 sigapl 424 917 0 850 8 0 8 8 0 8 0 knotepl 120 525 0 0 16 0 16 16 0 8 0 kqueuepl 224 145 0 135 2 1 1 2 0 8 0 pipepl 344 152 0 125 3 0 3 3 0 8 0 fdescpl 528 881 0 850 3 0 3 3 0 8 0 filepl 160 3984 0 3759 16 1 15 16 0 8 4 lockfpl 104 157 0 152 1 0 1 1 0 8 0 lockfspl 48 65 0 60 1 0 1 1 0 8 0 sessionpl 144 32 0 23 1 0 1 1 0 8 0 pgrppl 48 44 0 27 1 0 1 1 0 8 0 ucredpl 104 689 0 674 1 0 1 1 0 8 0 zombiepl 144 850 0 850 1 0 1 1 0 8 1 processpl 1232 917 0 850 6 0 6 6 0 8 0 procpl 664 1462 0 1387 8 0 8 8 0 8 0 sosppl 176 1 0 1 1 0 1 1 0 8 1 sockpl 752 869 0 839 17 7 10 17 0 8 6 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k128 9344 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 10 0 0 2 0 2 2 0 8 0 mcl4k 4096 116 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mextrefs 64 17 0 0 1 0 1 1 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 128 0 0 8 0 8 8 0 8 0 bufpl 272 5160 0 107 337 0 337 337 0 8 0 anonpl 32 8648 0 0 70 0 70 70 0 247 0 amapchunkpl 152 20084 0 19630 25 0 25 25 0 158 3 amappl16 200 2353 0 2321 17 3 14 15 0 8 8 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 464 0 463 1 0 1 1 0 8 0 amappl13 176 129 0 117 1 0 1 1 0 8 0 amappl12 168 1139 0 1110 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 1 0 1 0 8 0 amappl10 152 65 0 51 1 0 1 1 0 8 0 amappl9 144 279 0 279 1 1 0 1 0 8 0 amappl8 136 115 0 112 1 0 1 1 0 8 0 amappl7 128 154 0 141 1 0 1 1 0 8 0 amappl6 120 271 0 270 1 0 1 1 0 8 0 amappl5 112 95 0 85 1 0 1 1 0 8 0 amappl4 104 301 0 282 1 0 1 1 0 8 0 amappl3 96 3747 0 3657 3 0 3 3 0 8 0 amappl2 88 988 0 910 2 0 2 2 0 8 0 amappl1 80 12414 0 11814 15 1 14 15 0 8 1 amappl 88 5840 0 5687 5 0 5 5 0 92 0 uvmvnodes 80 110 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 20 0 1 1 0 1 1 0 8 0 uaddrrnd 24 881 0 850 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 881 0 850 1 0 1 1 0 8 0 vmmpekpl 168 8280 0 8227 3 0 3 3 0 8 0 vmmpepl 168 62987 0 61092 97 0 97 97 0 357 10 vmsppl 488 880 0 850 5 0 5 5 0 8 0 rwobjpl 80 19455 0 18407 28 1 27 27 0 8 1 pdppl 4096 1769 0 1700 99 26 73 83 0 8 4 pvpl 32 15591 0 0 127 1 126 127 0 265 0 pmappl 256 880 0 850 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 615 0 37 17 0 17 17 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7f1dff13cff0, 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_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670 comcnputc(800,a) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1671 [inline] comcnputc(800,a) at comcnputc+0x250 sys/dev/ic/com.c:1274 cnputc(a) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(a) at db_putchar+0x498 sys/ddb/db_output.c:168 kprintf() at kprintf+0x223 sys/kern/subr_prf.c:723 db_printf(ffffffff8345fdac) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83520c7f) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003b7bf010,98) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003b7bf010) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff80003c4a22d0,fffff68079167210,ffff80003b7bf1d0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 end trace frame: 0xffff80003b7bf240, 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_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670 comcnputc(800,a) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1671 [inline] comcnputc(800,a) at comcnputc+0x250 sys/dev/ic/com.c:1274 cnputc(a) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(a) at db_putchar+0x498 sys/ddb/db_output.c:168 kprintf() at kprintf+0x223 sys/kern/subr_prf.c:723 db_printf(ffffffff8345fdac) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83520c7f) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003b7bf010,98) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003b7bf010) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff80003c4a22d0,fffff68079167210,ffff80003b7bf1d0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 sys_futimens(ffff80003c4a22d0,ffff80003b7bf320,ffff80003b7bf270) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2767 syscall(ffff80003b7bf320) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b7bf320) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x49f8401af40, count: -17