*cpu0: uvm_fault(0xfffffd8065e65c60, 0x8, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x770badc6dec0, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800031540db0 rbx 0 rdx 0 rcx 0xffff80002a171d58 rax 0x2a r8 0xffff800031540ce0 r9 0 r10 0xa92042fdfa75acaf r11 0xb00eb394ef504818 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff819bc4d7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff800031540d30 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x660 ddb{1}> show proc PROC (syz-executor.2) tid=138628 pid=5564 tcnt=4 stat=onproc flags process=10 proc=0 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a217ff0,0xffff80002a172560 process=0xffff8000ffff2c80 user=0xffff80003153b000, vmspace=0xfffffd806b72a390 estcpu=36, cpticks=4, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 51829 437839 47464 32767 2 0x10 syz-executor.5 51829 61140 47464 32767 3 0x4000090 fsleep syz-executor.5 27096 403055 58960 32767 2 0x10 syz-executor.1 27096 438085 58960 32767 3 0x4000090 fsleep syz-executor.1 83682 7591 41644 32767 2 0x10 syz-executor.6 83682 301895 41644 32767 7 0x4000010 syz-executor.6 26889 226615 14514 32767 3 0x90 nanoslp syz-executor.7 26889 60353 14514 32767 3 0x4000090 tunread syz-executor.7 * 5564 138628 24137 32767 7 0x10 syz-executor.2 5564 463386 24137 32767 3 0x4000090 netcon syz-executor.2 5564 311546 24137 32767 2 0x4000090 syz-executor.2 5564 267975 24137 32767 2 0x4000010 syz-executor.2 47464 88989 18944 32767 3 0x90 nanoslp syz-executor.5 18944 201211 5472 0 3 0x82 wait syz-executor.5 49963 342966 16664 32767 3 0x90 nanoslp syz-executor.4 16664 149875 5472 0 3 0x82 wait syz-executor.4 41644 464950 26940 32767 3 0x90 nanoslp syz-executor.6 26940 351402 5472 0 3 0x82 wait syz-executor.6 14514 40525 25857 32767 3 0x90 nanoslp syz-executor.7 25857 92792 5472 0 3 0x82 wait syz-executor.7 24137 43756 24837 32767 2 0x10 syz-executor.2 24837 37099 5472 0 3 0x82 wait syz-executor.2 66383 102338 71315 32767 2 0x10 syz-executor.3 71315 362397 5472 0 3 0x82 wait syz-executor.3 58960 160292 18507 32767 3 0x90 nanoslp syz-executor.1 18507 325906 5472 0 3 0x82 wait syz-executor.1 7794 298004 94808 32767 3 0x90 nanoslp syz-executor.0 94808 486604 5472 0 3 0x82 wait syz-executor.0 30339 232643 0 0 3 0x14200 bored sosplice 5472 401029 37372 0 3 0x1a000082 wait syz-fuzzer 5472 336062 37372 0 3 0x1e000082 thrsleep syz-fuzzer 5472 213335 37372 0 3 0x1e000082 thrsleep syz-fuzzer 5472 227243 37372 0 3 0x1e000082 wait syz-fuzzer 5472 465667 37372 0 3 0x1e000082 kqread syz-fuzzer 5472 382885 37372 0 3 0x1e000082 thrsleep syz-fuzzer 5472 21562 37372 0 3 0x1e000082 thrsleep syz-fuzzer 5472 509103 37372 0 3 0x1e000082 thrsleep syz-fuzzer 5472 237911 37372 0 3 0x1e000082 wait syz-fuzzer 5472 311757 37372 0 3 0x1e000082 thrsleep syz-fuzzer 5472 173513 37372 0 3 0x1e000082 thrsleep syz-fuzzer 5472 194187 37372 0 3 0x1e000082 wait syz-fuzzer 5472 33572 37372 0 3 0x1e000082 wait syz-fuzzer 5472 205392 37372 0 3 0x1e000082 wait syz-fuzzer 5472 98892 37372 0 3 0x1e000082 wait syz-fuzzer 5472 366096 37372 0 3 0x1e000082 wait syz-fuzzer 37372 416758 96030 0 3 0x810008a sigsusp ksh 96030 194292 1816 0 3 0x1800009a kqread sshd 71964 386365 1 0 3 0x18100083 ttyin getty 1816 413906 1 0 3 0x18000088 kqread sshd 17222 296415 4281 73 2 0x19100010 syslogd 4281 368522 1 0 3 0x18100082 netio syslogd 19477 44130 1 0 3 0x18100080 kqread resolvd 37009 172967 98727 77 3 0x18100092 kqread dhcpleased 9301 512774 98727 77 3 0x18100092 kqread dhcpleased 98727 91489 1 0 3 0x18000080 kqread dhcpleased 34012 187827 0 0 3 0x14200 bored smr 61942 277927 0 0 2 0x14200 zerothread 10396 296864 0 0 3 0x14200 aiodoned aiodoned 36904 463301 0 0 3 0x14200 syncer update 64725 145356 0 0 3 0x14200 cleaner cleaner 22983 307904 0 0 3 0x14200 reaper reaper 50199 474076 0 0 3 0x14200 pgdaemon pagedaemon 93699 186044 0 0 3 0x14200 bored viomb 30450 46422 0 0 3 0x40014200 acpi0 acpi0 90295 9074 0 0 3 0x40014200 idle1 97129 504733 0 0 3 0x14200 bored softnet3 24186 164439 0 0 3 0x14200 bored softnet2 30211 370934 0 0 3 0x14200 bored softnet1 12339 305897 0 0 3 0x14200 bored softnet0 98994 462195 0 0 3 0x14200 bored systqmp 38710 57840 0 0 3 0x14200 bored systq 595 510070 0 0 3 0x14200 tmoslp softclockmp 73037 258433 0 0 3 0x40014200 tmoslp softclock 32512 470875 0 0 3 0x40014200 idle0 1 438259 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive sched_lock &sched_lock r = 0 (0xffffffff82e0bda8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 wakeup_n+0x38 sys/kern/kern_synch.c:540 #2 uvm_pmr_getpages+0xee2 sys/uvm/uvm_pmemrange.c:1207 #3 uvm_pagealloc+0x1a9 sys/uvm/uvm_page.c:910 #4 uvm_fault_lower+0x1af #5 uvm_fault+0x255 sys/uvm/uvm_fault.c:637 #6 upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff82dbc9d0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 mtx_enter_try+0x103 #2 mtx_enter+0x4e sys/kern/kern_lock.c:266 #3 uvm_pmr_getpages+0xe9c sys/uvm/uvm_pmemrange.c:1205 #4 uvm_pagealloc+0x1a9 sys/uvm/uvm_page.c:910 #5 uvm_fault_lower+0x1af #6 uvm_fault+0x255 sys/uvm/uvm_fault.c:637 #7 upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 83682 (syz-executor.6) thread 0xffff80002a204ab0 (301895) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82e6ef08) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x494 sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19d sys/kern/kern_synch.c:414 #4 biowait+0x91 sys/kern/vfs_bio.c:1254 #5 bwrite+0x1fb sys/kern/vfs_bio.c:766 #6 VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 #7 ufs_direnter+0x60e sys/ufs/ufs/ufs_lookup.c:833 #8 ufs_makeinode+0x3c2 sys/ufs/ufs/ufs_vnops.c:1769 #9 ufs_symlink+0x4b sys/ufs/ufs/ufs_vnops.c:1298 #10 VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:426 #11 dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809 #12 syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] #12 syscall+0x53b sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e3e7d68) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32a sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8e sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vget+0x1fd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ffs_inode_alloc+0x1e4 sys/ufs/ffs/ffs_alloc.c:393 #9 ufs_makeinode+0xb0 sys/ufs/ufs/ufs_vnops.c:1733 #10 ufs_symlink+0x4b sys/ufs/ufs/ufs_vnops.c:1298 #11 VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:426 #12 dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809 #13 syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] #13 syscall+0x53b sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 Process 5564 (syz-executor.2) thread 0xffff80002a171d58 (138628) exclusive rwlock amaplk r = 0 (0xfffffd80661a1718) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 uvm_fault_check+0x3fe sys/uvm/uvm_fault.c:782 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806b72a488) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 exclusive sched_lock &sched_lock r = 0 (0xffffffff82e0bda8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 wakeup_n+0x38 sys/kern/kern_synch.c:540 #2 uvm_pmr_getpages+0xee2 sys/uvm/uvm_pmemrange.c:1207 #3 uvm_pagealloc+0x1a9 sys/uvm/uvm_page.c:910 #4 uvm_fault_lower+0x1af #5 uvm_fault+0x255 sys/uvm/uvm_fault.c:637 #6 upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff82dbc9d0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 mtx_enter_try+0x103 #2 mtx_enter+0x4e sys/kern/kern_lock.c:266 #3 uvm_pmr_getpages+0xe9c sys/uvm/uvm_pmemrange.c:1205 #4 uvm_pagealloc+0x1a9 sys/uvm/uvm_page.c:910 #5 uvm_fault_lower+0x1af #6 uvm_fault+0x255 sys/uvm/uvm_fault.c:637 #7 upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 17222 (syslogd) thread 0xffff80002a18aaa0 (296415) exclusive rrwlock inode r = 0 (0xfffffd806e6cc810) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32a sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8e sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0xf1 sys/kern/vfs_syscalls.c:2904 #6 syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] #6 syscall+0x53b sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10209 6412K 6419K 166960K 11562 0 pcb 15 20K 24K 166960K 23 0 rtable 248 7K 7K 166960K 6219 0 pf 29 8K 8K 166960K 211 0 ifaddr 44 16K 16K 166960K 416 0 ifgroup 50 2K 2K 166960K 414 0 sysctl 4 1K 3K 166960K 16 0 counters 64 36K 36K 166960K 246 0 ioctlops 0 0K 2K 166960K 1236 0 iov 0 0K 46K 166960K 5315 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1364 86K 86K 166960K 9983 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 752 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 9686 0 dirhash 12 2K 3K 166960K 600 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 23 85K 121K 166960K 48462 0 sigio 0 0K 0K 166960K 2374 0 proc 56 78K 115K 166960K 5303 0 subproc 104 6K 6K 166960K 1287 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 5428 0 in_multi 99 7K 7K 166960K 1524 0 ether_multi 1 0K 0K 166960K 57 0 mrt 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 6412 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 465 91K 108K 166960K 476466 0 UVM aobj 131 4K 4K 166960K 131 0 pinsyscall 22 44K 100K 166960K 4283 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1389 0 NDP 11 0K 2K 166960K 300 0 temp 74 6812K 6940K 166960K 120675 0 kqueue 12 18K 33K 166960K 4598 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 3654 0 3651 40 39 1 5 0 8 0 rtentry 112 1197 0 1080 4 0 4 4 0 8 0 unpcb 144 44220 0 44206 393 392 1 9 0 8 0 syncache 336 532 0 532 84 84 0 1 0 8 0 sackhl 24 10 0 10 8 8 0 1 0 8 0 tcpqe 32 575 0 575 71 71 0 1 0 8 0 tcpcb 808 22119 0 22099 462 457 5 23 0 8 0 arp 120 213 0 195 1 0 1 1 0 8 0 ipq 40 82 0 82 25 25 0 1 0 8 0 ipqe 40 341 0 341 25 25 0 1 0 8 0 inpcb 392 45483 0 45459 646 640 6 23 0 8 0 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 4 0 4 1 1 0 1 0 8 0 nd6 136 369 0 338 4 2 2 2 0 8 0 kcovpl 48 99 0 91 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4777 0 4296 44 13 31 32 0 8 0 art_table 32 4778 0 4296 6 2 4 5 0 8 0 art_node 16 1196 0 1089 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 6 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 9681 0 9671 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 409 0 392 3 0 3 3 0 8 0 dino2pl 256 65121 0 63554 98 0 98 98 0 8 0 ffsino 272 65121 0 63554 105 0 105 105 0 8 0 nchpl 144 127660 0 125925 66 0 66 66 0 8 0 uvmvnodes 80 6752 0 0 138 0 138 138 0 8 0 vnodes 216 6752 0 0 376 0 376 376 0 8 0 namei 1024 426713 0 426712 18 17 1 2 0 8 0 percpumem 16 137 0 91 1 0 1 1 0 8 0 kstatmem 264 204 0 182 2 0 2 2 0 8 0 scxspl 216 432352 0 432352 149 148 1 8 1 8 1 plimitpl 152 8264 0 8241 55 53 2 2 0 8 0 sigapl 424 48581 0 48525 7 0 7 7 0 8 0 futexpl 64 397123 0 397121 13 12 1 1 0 8 0 knotepl 120 1917 0 0 22 10 12 17 0 8 0 kqueuepl 216 13930 0 13922 261 260 1 8 0 8 0 pipepl 320 10274 0 10246 259 256 3 13 0 8 0 fdescpl 496 48562 0 48528 7 2 5 6 0 8 0 filepl 152 309921 0 309675 419 407 12 22 0 8 0 lockfpl 104 8082 0 8079 2 1 1 2 0 8 0 lockfspl 48 2278 0 2275 1 0 1 1 0 8 0 sessionpl 144 114 0 98 1 0 1 1 0 8 0 pgrppl 48 664 0 648 1 0 1 1 0 8 0 ucredpl 104 47976 0 47958 1 0 1 1 0 8 0 zombiepl 144 48528 0 48525 1 0 1 1 0 8 0 processpl 1136 48581 0 48525 5 0 5 5 0 8 0 procpl 680 135398 0 135320 16 8 8 9 0 8 0 sosppl 168 879 0 878 18 17 1 1 0 8 0 sockpl 584 95562 0 95521 726 720 6 22 0 8 0 mcl64k 65536 52 0 0 4 1 3 3 0 8 0 mcl16k 16384 48 0 0 3 0 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 41 0 0 3 1 2 2 0 8 0 mcl8k 8192 81 0 0 4 1 3 3 0 8 0 mcl4k 4096 180 0 0 6 2 4 4 0 8 0 mcl2k2 2112 24 0 0 2 0 2 2 0 8 0 mcl2k 2048 854 0 0 39 22 17 31 0 8 0 mtagpl 96 59 0 0 2 0 2 2 0 8 0 mbufpl 256 3463 0 0 88 0 88 88 0 8 0 bufpl 280 84617 0 77202 530 0 530 530 0 8 0 anonpl 24 4948981 0 4936811 232 118 114 125 0 186 3 amapchunkpl 152 1525276 0 1524401 210 163 47 53 0 158 5 amappl16 200 114477 0 114049 287 255 32 46 0 8 0 amappl15 192 165 0 164 1 0 1 1 0 8 0 amappl14 184 449 0 435 2 1 1 2 0 8 0 amappl13 176 90 0 89 2 1 1 1 0 8 0 amappl12 168 50623 0 50581 8 5 3 3 0 8 0 amappl11 160 58 0 48 1 0 1 1 0 8 0 amappl10 152 152 0 139 1 0 1 1 0 8 0 amappl9 144 673 0 672 1 0 1 1 0 8 0 amappl8 136 2388 0 2131 10 0 10 10 0 8 0 amappl7 128 312 0 297 1 0 1 1 0 8 0 amappl6 120 2241 0 2210 4 2 2 2 0 8 0 amappl5 112 1495 0 1482 1 0 1 1 0 8 0 amappl4 104 2417 0 2367 3 1 2 3 0 8 0 amappl3 96 293614 0 293523 17 14 3 4 0 8 0 amappl2 88 51964 0 51859 9 6 3 4 0 8 0 amappl1 80 182041 0 181535 21 9 12 21 0 8 0 amappl 88 473340 0 473076 9 1 8 8 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 48562 0 48528 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 48562 0 48528 1 0 1 1 0 8 0 vmmpekpl 168 368019 0 367956 4 0 4 4 0 8 0 vmmpepl 168 2834698 0 2831998 758 610 148 161 0 357 0 vmsppl 448 48561 0 48528 7 2 5 5 0 8 0 rwobjpl 56 698624 0 690075 139 17 122 122 0 8 0 pdppl 4096 97131 0 97056 1582 1501 81 93 0 8 6 pvpl 32 48316 0 0 392 2 390 390 0 265 0 pmappl 248 48561 0 48528 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3293 0 2830 15 0 15 15 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82ce2ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_write_1(3f8,0,31) at x86_bus_space_io_write_1+0x37 sys/arch/amd64/amd64/bus_space.c:774 comcnputc(800,31) at comcnputc+0x12a bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,31) at comcnputc+0x12a sys/dev/ic/com.c:1264 cnputc(31) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(31) at db_putchar+0x3eb sys/ddb/db_output.c:155 kprintf() at kprintf+0x21c1 sys/kern/subr_prf.c:1064 db_printf(ffffffff828fc6a6) at db_printf+0x89 sys/kern/subr_prf.c:498 fault(ffffffff828a9dba) at fault+0x95 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80002a221bf0,8) at kpageflttrap+0x2a7 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80002a221bf0) at kerntrap+0xf2 sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff80002a221ce0) at fifo_write+0x4f sys/miscfs/fifofs/fifo_vnops.c:273 end trace frame: 0xffff80002a221d50, count: 0 ddb{0}> trace x86_ipi_db(ffffffff82ce2ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_write_1(3f8,0,31) at x86_bus_space_io_write_1+0x37 sys/arch/amd64/amd64/bus_space.c:774 comcnputc(800,31) at comcnputc+0x12a bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,31) at comcnputc+0x12a sys/dev/ic/com.c:1264 cnputc(31) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(31) at db_putchar+0x3eb sys/ddb/db_output.c:155 kprintf() at kprintf+0x21c1 sys/kern/subr_prf.c:1064 db_printf(ffffffff828fc6a6) at db_printf+0x89 sys/kern/subr_prf.c:498 fault(ffffffff828a9dba) at fault+0x95 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80002a221bf0,8) at kpageflttrap+0x2a7 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80002a221bf0) at kerntrap+0xf2 sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff80002a221ce0) at fifo_write+0x4f sys/miscfs/fifofs/fifo_vnops.c:273 VOP_WRITE(fffffd807c4daa78,ffff80002a221d78,8,fffffd807f7d7208) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd807c4daa78,ffff80002a1cdc00,102,0,1,797c12eb9e9144a8,ffff80002a221ea0,fffffd807c4daa78,78) at vn_rdwr+0xee sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a221ea0) at ufs_symlink+0x172 sys/ufs/ufs/ufs_vnops.c:1314 VOP_SYMLINK(fffffd80678498c0,ffff80002a222020,ffff80002a222050,ffff80002a221f50,ffff80002a1cdc00) at VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:426 dosymlinkat(ffff80002a204ab0,20000840,5,20000340) at dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809 syscall(ffff80002a2221d0) at syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a2221d0) at syscall+0x53b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb982b555810, count: -21 ddb{0}> machine ddbcpu 1 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x660 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x770badc6dec0, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x770badc6dec0, count: -1