*cpu0: uvm_fault(0xfffffd80602f89b0, 0x0, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x79978bcab040, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff8000363e7690 rbx 0 rdx 0 rcx 0xffff80003c4acfd8 rax 0x2a r8 0xffff8000363e75c0 r9 0x4 r10 0xb7f6401a3ddc79e6 r11 0x98c39033425be3be r12 0 r13 0 r14 0 r15 0 rip 0xffffffff8232c4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff8000363e7610 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=174455 pid=59132 tcnt=1 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=0xffff80003c4adcd0,0xffffffff83940818 process=0xffff80003c4589d0 user=0xffff8000363e2000, vmspace=0xfffffd806eac3010 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *59132 174455 915 0 7 0 syz-executor 95742 343615 36208 0 2 0 syz-executor 57608 279602 5993 0 2 0 syz-executor 57608 425720 5993 0 3 0x4000080 fsleep syz-executor 35474 35985 44814 0 2 0 syz-executor 35474 11722 44814 0 3 0x4000080 fsleep syz-executor 56306 282737 87295 0 3 0 vmmaplk syz-executor 56306 54271 87295 0 3 0x4000080 fsleep syz-executor 56306 150477 87295 0 2 0x4000000 syz-executor 5103 426074 94518 0 2 0 syz-executor 5103 158051 94518 0 7 0x4000000 syz-executor 5103 166217 94518 0 3 0x4000080 fsleep syz-executor 5103 497634 94518 0 3 0x4000080 fsleep syz-executor 38039 181099 0 0 3 0x14280 nfsidl nfsio 88334 477765 0 0 3 0x14280 nfsidl nfsio 95074 370443 0 0 3 0x14280 nfsidl nfsio 61312 448374 0 0 3 0x14280 nfsidl nfsio 52276 185963 0 0 3 0x14280 nfsidl nfsio 90691 315438 0 0 3 0x14280 nfsidl nfsio 49803 198824 0 0 3 0x14280 nfsidl nfsio 40378 401064 0 0 3 0x14280 nfsidl nfsio 904 209758 0 0 3 0x14280 nfsidl nfsio 67923 3718 0 0 3 0x14280 nfsidl nfsio 34213 153922 0 0 3 0x14280 nfsidl nfsio 35275 204788 0 0 3 0x14280 nfsidl nfsio 28986 115167 0 0 3 0x14280 nfsidl nfsio 83058 312336 0 0 3 0x14280 nfsidl nfsio 84863 63780 0 0 3 0x14280 nfsidl nfsio 51423 177481 0 0 3 0x14280 nfsidl nfsio 16981 674 0 0 3 0x14280 nfsidl nfsio 71007 476578 0 0 3 0x14280 nfsidl nfsio 63262 482679 0 0 3 0x14280 nfsidl nfsio 63325 244357 0 0 3 0x14280 nfsidl nfsio 11399 72938 1 0 3 0x100083 ttyopn getty 44814 316881 15385 0 2 0xc82 syz-executor 915 131819 15385 0 2 0xc82 syz-executor 66878 291633 15385 0 2 0x2 syz-executor 87295 66563 15385 0 2 0xc82 syz-executor 5993 125761 15385 0 2 0xc82 syz-executor 94518 97776 15385 0 2 0xc82 syz-executor 44939 371579 15385 0 2 0x2 syz-executor 36208 356717 15385 0 2 0xc82 syz-executor 15385 51169 62461 0 2 0x2 syz-executor 62461 152524 44194 0 3 0x10008a sigsusp ksh 44194 133633 95837 0 3 0x98 kqread sshd-session 95837 153276 25747 0 3 0x92 kqread sshd-session 25747 219586 1 0 3 0x88 kqread sshd 83011 38183 38548 74 3 0x1100092 bpf pflogd 38548 419507 1 0 3 0x80 sbwait pflogd 26325 111178 24934 73 3 0x1100090 kqread syslogd 24934 396432 1 0 3 0x100082 sbwait syslogd 80387 208109 1 0 3 0x100080 kqread resolvd 78034 412035 38924 77 3 0x100092 kqread dhcpleased 63169 119920 38924 77 3 0x100092 kqread dhcpleased 38924 132770 1 0 3 0x80 kqread dhcpleased 50936 325336 0 0 3 0x14200 bored smr 94180 199600 0 0 2 0x14200 zerothread 77184 468192 0 0 3 0x14200 aiodoned aiodoned 84645 426887 0 0 3 0x14200 syncer update 33043 151745 0 0 3 0x14200 cleaner cleaner 69879 218428 0 0 3 0x14200 reaper reaper 3934 306957 0 0 3 0x14200 pgdaemon pagedaemon 34389 444012 0 0 3 0x14200 bored viomb 67090 322948 0 0 3 0x40014200 acpi0 acpi0 30104 199169 0 0 3 0x40014200 idle1 98138 208991 0 0 3 0x14200 bored softnet1 34860 399656 0 0 3 0x14200 bored softnet0 82730 115237 0 0 3 0x14200 bored systqmp 54469 423298 0 0 3 0x14200 bored systq 73347 93047 0 0 3 0x14200 tmoslp softclockmp 48631 225137 0 0 3 0x40014200 tmoslp softclock 28091 13813 0 0 3 0x40014200 idle0 1 488411 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff838c2e10) #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 uvm_pageactivate+0x15a sys/uvm/uvm_page.c:1313 #3 uvm_fault_lower+0x82e sys/uvm/uvm_fault.c:1552 #4 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 Process 59132 (syz-executor) thread 0xffff80003c4acfd8 (174455) shared rwlock uobjlk r = 0 (0xfffffd80746f5870) #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 uvm_fault_lower_lookup+0x53 sys/uvm/uvm_fault.c:1204 #3 uvm_fault_lower+0x89 sys/uvm/uvm_fault.c:1334 #4 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806eac3110) #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+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff838c2e10) #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 uvm_pageactivate+0x15a sys/uvm/uvm_page.c:1313 #3 uvm_fault_lower+0x82e sys/uvm/uvm_fault.c:1552 #4 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 Process 95742 (syz-executor) thread 0xffff80003c4adcd0 (343615) exclusive rwlock vmmaplk r = 0 (0xfffffd806eac32f8) #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+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 Process 57608 (syz-executor) thread 0xffff80003c4ac048 (279602) exclusive rwlock vmmaplk r = 0 (0xfffffd80602f8128) #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+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 Process 56306 (syz-executor) thread 0xffff80003c4acd40 (150477) exclusive rwlock vmmaplk r = 0 (0xfffffd80602f86e0) #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+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 Process 5103 (syz-executor) thread 0xffff80003c4a1cb8 (158051) exclusive rwlock dtlk r = 0 (0xffffffff837ec758) #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 dt_ioctl_record_stop+0x2e sys/dev/dt/dt_dev.c:572 #3 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #3 dtclose+0x109 sys/dev/dt/dt_dev.c:239 #4 spec_close+0x466 sys/kern/spec_vnops.c:-1 #5 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #6 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #6 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #7 fdrop+0x121 sys/kern/kern_descrip.c:1280 #8 closef+0x192 sys/kern/kern_descrip.c:1264 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839333c0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 vn_closefile+0x41 sys/kern/vfs_vnops.c:608 #2 fdrop+0x121 sys/kern/kern_descrip.c:1280 #3 closef+0x192 sys/kern/kern_descrip.c:1264 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #5 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11116 12231K 12380K 166960K 13589 0 pcb 18 15K 17K 166960K 303 0 rtable 226 11K 12K 166960K 716 0 pf 41 19K 82K 166960K 201 0 ifaddr 38 7K 7K 166960K 135 0 ifgroup 65 2K 3K 166960K 215 0 sysctl 3 1K 9K 166960K 13 0 counters 72 37K 38K 166960K 228 0 ioctlops 0 0K 4K 166960K 1908 0 iov 0 0K 32K 166960K 85 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1462 92K 92K 166960K 2492 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 15 0K 0K 166960K 124 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 1591 0 sigio 0 0K 0K 166960K 23 0 proc 72 115K 164K 166960K 826 0 subproc 72 4K 4K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 215 0 in_multi 75 5K 7K 166960K 226 0 ether_multi 1 0K 0K 166960K 16 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 253 1129K 1129K 166960K 253 0 exec 0 0K 1K 166960K 704 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 224 174K 197K 166960K 16057 0 UVM aobj 27 18K 18K 166960K 31 0 pinsyscall 41 82K 102K 166960K 2883 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 142 0 NDP 13 0K 2K 166960K 93 0 temp 70 8686K 8796K 166960K 61235 0 kqueue 13 20K 31K 166960K 300 0 SYN cache 2 8K 16K 166960K 3 0 ddb{1}> 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 120 192 0 189 2 1 1 2 0 8 0 rtentry 176 207 0 120 6 1 5 6 0 8 0 unpcb 144 970 0 953 11 10 1 6 0 8 0 syncache 336 6 0 6 3 3 0 1 0 8 0 tcpqe 32 20 0 20 1 1 0 1 0 8 0 tcpcb 736 564 0 560 22 18 4 13 0 8 3 arp 136 39 0 16 1 0 1 1 0 8 0 inpcb 328 2031 0 2020 24 20 4 13 0 8 3 ip6q 72 1 0 1 1 0 1 1 0 8 1 ip6af 40 2 0 2 1 0 1 1 0 8 1 nd6 152 44 0 24 1 0 1 1 0 8 0 pkpcb 40 13 0 13 3 3 0 1 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1192 59 0 59 3 2 1 1 0 8 1 pppxif 1504 5 0 5 1 1 0 1 0 8 0 pfstscr 40 3 0 3 2 2 0 1 0 8 0 pffrag 232 12 0 4 1 0 1 1 0 482 0 pffrnode 88 12 0 4 1 0 1 1 0 8 0 pffrent 40 18 0 10 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 12 0 12 2 2 0 1 0 8 0 pfsrclim 320 1 0 1 1 1 0 1 0 8 0 pfstlim 224 1 0 0 1 0 1 1 0 8 0 pfanchor 1288 2 0 2 2 2 0 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 1 0 0 1 0 1 1 0 8 0 pfstkey 128 8 0 7 3 2 1 1 0 8 0 pfstate 448 5 0 4 3 2 1 1 0 8 0 pfrule 1360 13 0 12 2 1 1 1 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 880 0 490 38 13 25 29 0 8 0 art_table 40 882 0 490 5 0 5 5 0 8 0 art_node 32 206 0 126 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 7 2 1 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 119 0 106 1 0 1 1 0 8 0 shmpl 112 21 0 3 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 4220 0 2709 96 0 96 96 0 8 0 ffsino 296 4220 0 2709 117 0 117 117 0 8 0 nchpl 144 6454 0 4741 64 0 64 64 0 8 0 rtmask 32 9 0 9 4 4 0 1 0 8 0 vnodes 216 4903 0 0 273 0 273 273 0 8 0 namei 1024 23248 0 23248 4 3 1 2 0 8 1 percpumem 16 129 0 78 1 0 1 1 0 8 0 vcpupl 3968 6 0 0 1 0 1 1 0 8 0 vmpool 848 7 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 4 0 4 2 2 0 1 0 8 0 kstatmem 264 134 0 102 4 1 3 3 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 9 0 9 4 4 0 1 0 8 0 scxspl 216 52416 0 52416 11 10 1 7 1 8 1 plimitpl 152 505 0 488 1 0 1 1 0 8 0 sigapl 424 1917 0 1851 10 2 8 8 0 8 0 knotepl 120 802 0 0 24 0 24 24 0 8 0 kqueuepl 224 624 0 615 10 9 1 5 0 8 0 pipepl 344 427 0 400 9 5 4 9 0 8 0 fdescpl 528 1859 0 1829 3 0 3 3 0 8 0 filepl 160 13178 0 12965 24 11 13 17 0 8 0 lockfpl 104 590 0 587 2 1 1 2 0 8 0 lockfspl 48 231 0 228 1 0 1 1 0 8 0 sessionpl 144 34 0 25 1 0 1 1 0 8 0 pgrppl 48 63 0 46 1 0 1 1 0 8 0 ucredpl 104 1930 0 1917 1 0 1 1 0 8 0 zombiepl 144 2094 0 2094 1 0 1 1 0 8 1 processpl 1232 1918 0 1851 7 1 6 6 0 8 0 procpl 664 4362 0 4288 10 2 8 8 0 8 0 sosppl 176 18 0 17 3 2 1 1 0 8 0 sockpl 752 3248 0 3217 42 35 7 18 0 8 3 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 129 0 0 17 0 17 17 0 8 0 mcl2k 2048 34 0 0 5 0 5 5 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 1180 0 0 73 0 73 73 0 8 0 bufpl 280 22081 0 15945 439 0 439 439 0 8 0 anonpl 32 13401 0 0 108 0 108 108 0 246 0 amapchunkpl 152 54658 0 54246 49 26 23 35 0 158 1 amappl16 200 7091 0 7061 63 49 14 30 0 8 6 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 14 0 13 3 2 1 1 0 8 0 amappl13 176 498 0 497 1 0 1 1 0 8 0 amappl12 168 2286 0 2246 3 0 3 3 0 8 0 amappl11 160 20 0 20 1 1 0 1 0 8 0 amappl10 152 50 0 36 1 0 1 1 0 8 0 amappl9 144 245 0 245 1 1 0 1 0 8 0 amappl8 136 26 0 24 1 0 1 1 0 8 0 amappl7 128 162 0 159 1 0 1 1 0 8 0 amappl6 120 353 0 340 1 0 1 1 0 8 0 amappl5 112 87 0 76 1 0 1 1 0 8 0 amappl4 104 502 0 473 1 0 1 1 0 8 0 amappl3 96 9533 0 9456 4 1 3 3 0 8 0 amappl2 88 1988 0 1913 2 0 2 2 0 8 0 amappl1 80 16667 0 16078 16 2 14 15 0 8 0 amappl 88 14958 0 14813 5 0 5 5 0 92 0 uvmvnodes 80 157 0 0 4 0 4 4 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 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 257 0 257 2 2 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 30 0 4 1 0 1 1 0 8 0 uaddrrnd 24 1859 0 1829 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1859 0 1829 1 0 1 1 0 8 0 vmmpekpl 168 16341 0 16289 3 0 3 3 0 8 0 vmmpepl 168 124151 0 122314 118 20 98 110 0 357 4 vmsppl 488 1858 0 1829 6 1 5 5 0 8 0 rwobjpl 80 35370 0 34289 38 7 31 34 0 8 0 pdppl 4096 3739 0 3666 122 45 77 83 0 8 4 pvpl 32 23111 0 0 187 1 186 186 0 265 0 pmappl 256 1865 0 1830 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 401 0 90 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83864ff0) 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(800,30) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,30) at comcnputc+0x250 sys/dev/ic/com.c:1269 cnputc(30) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(30) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff8335383d) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83415ee8) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c433a60,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c433a60) at kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff8000016d9000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 end trace frame: 0xffff80003c433b90, count: 0 ddb{0}> trace x86_ipi_db(ffffffff83864ff0) 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(800,30) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,30) at comcnputc+0x250 sys/dev/ic/com.c:1269 cnputc(30) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(30) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff8335383d) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83415ee8) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c433a60,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c433a60) at kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff8000016d9000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,81,2000,ffff80003c4a1cb8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c4a1cb8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c433c10) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8077b67718,81,fffffd80097fd000,ffff80003c4a1cb8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806d7fe0c8,ffff80003c4a1cb8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806d7fe0c8,ffff80003c4a1cb8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806d7fe0c8,ffff80003c4a1cb8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806d7fe0c8,ffff80003c4a1cb8) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff80003c433e70) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c433e70) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa760c8123d0, count: -22 ddb{0}> machine ddbcpu 1 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x79978bcab040, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x79978bcab040, count: -1