panic: uao_find_swhash_elt: can't allocate entry Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *141020 40730 0 0x14000 0x200 0K pagedaemon db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8332f212) at panic+0x1e5 sys/kern/subr_prf.c:198 uao_set_swslot(fffffd8059d7a298,ab7a0,6fb8) at uao_set_swslot+0x443 uvmpd_scan_inactive(0,8d3d) at uvmpd_scan_inactive+0x1035 sys/uvm/uvm_pdaemon.c:728 uvmpd_scan(0,8d3d,3) at uvmpd_scan+0x87 sys/uvm/uvm_pdaemon.c:925 uvm_pageout(ffff8000fffffc88) at uvm_pageout+0x4fc sys/uvm/uvm_pdaemon.c:305 end trace frame: 0x0, count: 9 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uao_find_swhash_elt: can't allocate entry ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8332f212) at panic+0x1e5 sys/kern/subr_prf.c:198 uao_set_swslot(fffffd8059d7a298,ab7a0,6fb8) at uao_set_swslot+0x443 uvmpd_scan_inactive(0,8d3d) at uvmpd_scan_inactive+0x1035 sys/uvm/uvm_pdaemon.c:728 uvmpd_scan(0,8d3d,3) at uvmpd_scan+0x87 sys/uvm/uvm_pdaemon.c:925 uvm_pageout(ffff8000fffffc88) at uvm_pageout+0x4fc sys/uvm/uvm_pdaemon.c:305 end trace frame: 0x0, count: -6 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a23e4c0 rbx 0xffffffff837b3e07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff8000fffffc88 rax 0xffffffff837b2ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xf5bccfa751036306 r11 0x54d0672d03d06db3 r12 0xffffffff837b3c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff83013df5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a23e4b0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (pagedaemon) tid=141020 pid=40730 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=4, usrpri=86, slppri=4, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffff228,0xffff8000ffffdca0 process=0xffff8000ffffb4f0 user=0xffff80002a239000, vmspace=0xffffffff839d4a08 estcpu=36, cpticks=456, pctcpu=3.69, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 17375 158790 94651 0 3 0x2 uvm_pmr_getp syz-executor 2247 347695 94651 0 3 0x2 uvm_pmr_getp syz-executor 87297 479721 94651 0 3 0x2 uvm_pmr_getp syz-executor 22212 434621 94651 0 3 0x2 uvm_pmr_getp syz-executor 19393 518923 94651 0 3 0x2 uvm_pmr_getp syz-executor 71789 278603 8821 0 3 0x3000 suspend syz-executor 71789 296383 8821 0 3 0x4081000 flt_noram3 syz-executor 62058 506563 1 0 3 0x80 fsleep syz-executor 62058 85007 1 0 3 0x4000000 pfioctl_rw syz-executor 56286 193539 1 0 3 0x80 fsleep syz-executor 56286 445477 1 0 3 0x4000000 pfioctl_rw syz-executor 70759 87028 1 0 3 0x80 fsleep syz-executor 70759 235777 1 0 3 0x4000000 pfioctl_rw syz-executor 77010 213356 1 0 3 0x4081000 uao_getpage syz-executor 77010 420816 1 0 3 0x4003000 suspend syz-executor 13653 372984 0 0 3 0x14200 acct acct 94610 386042 94651 0 3 0x2 uvm_pmr_getp syz-executor 8821 409353 94651 0 3 0x82 wait syz-executor 62614 44373 0 0 3 0x14280 nfsidl nfsio 76365 456709 0 0 3 0x14280 nfsidl nfsio 73802 120207 0 0 3 0x14280 nfsidl nfsio 76666 374959 0 0 3 0x14280 nfsidl nfsio 62018 340737 94651 0 3 0x82 wait syz-executor 94651 407170 68902 0 3 0x82 kqread syz-executor 68902 488091 27188 0 3 0x10008a sigsusp ksh 27188 201609 85133 0 3 0x98 kqread sshd-session 85133 25040 14455 0 3 0x92 kqread sshd-session 91070 455638 1 0 3 0x100083 ttyin getty 14455 505987 1 0 3 0x88 kqread sshd 76977 472107 20905 74 3 0x1100092 bpf pflogd 20905 337609 1 0 3 0x80 sbwait pflogd 21662 402385 35936 73 3 0x1100090 kqread syslogd 35936 368228 1 0 3 0x100082 sbwait syslogd 25620 398720 1 0 3 0x100080 kqread resolvd 65115 402687 42657 77 3 0x100092 kqread dhcpleased 81421 392329 42657 77 3 0x100092 kqread dhcpleased 42657 497259 1 0 3 0x80 kqread dhcpleased 78683 519115 0 0 3 0x14200 bored smr 9078 473494 0 0 3 0x14200 pgzero zerothread 76671 431709 0 0 3 0x14200 aiodoned aiodoned 35196 331516 0 0 3 0x14200 syncer update 88843 231665 0 0 3 0x14200 cleaner cleaner 20307 303954 0 0 3 0x14200 reaper reaper *40730 141020 0 0 7 0x14200 pagedaemon 79777 392283 0 0 3 0x14200 bored viomb 5216 258998 0 0 3 0x40014200 acpi0 acpi0 82825 123120 0 0 7 0x40014200 idle1 47667 198077 0 0 3 0x14200 bored softnet1 13872 27499 0 0 3 0x14200 bored softnet0 40996 521343 0 0 3 0x14200 bored systqmp 44343 474825 0 0 3 0x14200 bored systq 83414 294460 0 0 3 0x14200 tmoslp softclockmp 57217 271889 0 0 3 0x40014200 tmoslp softclock 12693 449849 0 0 3 0x40014200 idle0 1 140512 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83976cd0) #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_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvmpd_scan_inactive+0x43e sys/uvm/uvm_pdaemon.c:810 #4 uvmpd_scan+0x87 sys/uvm/uvm_pdaemon.c:925 #5 uvm_pageout+0x4fc sys/uvm/uvm_pdaemon.c:305 #6 proc_trampoline+0x10 Process 71789 (syz-executor) thread 0xffff80003c4fe800 (296383) exclusive rrwlock inode r = 0 (0xfffffd806f311238) #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+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #9 Xsyscall+0x128 Process 77010 (syz-executor) thread 0xffff8000fffefa08 (213356) exclusive rwlock pfioctl_rw r = 0 (0xffffffff83836f48) #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 pfioctl+0x1d4 sys/net/pf_ioctl.c:2115 #3 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #4 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #5 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #7 Xsyscall+0x128 Process 40730 (pagedaemon) thread 0xffff8000fffffc88 (141020) exclusive rwlock uobjlk r = 0 (0xfffffd805b1484d8) #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 uvmpd_scan_inactive+0x69b uvmpd_trylockowner sys/uvm/uvm_pdaemon.c:410 [inline] #2 uvmpd_scan_inactive+0x69b sys/uvm/uvm_pdaemon.c:585 #3 uvmpd_scan+0x87 sys/uvm/uvm_pdaemon.c:925 #4 uvm_pageout+0x4fc sys/uvm/uvm_pdaemon.c:305 #5 proc_trampoline+0x10 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838b2ff8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:367 #3 msleep_nsec+0x132 sys/kern/kern_synch.c:219 #4 uvm_swap_allocpages+0x150 sys/uvm/uvm_swap.c:350 #5 uvm_swap_io+0x4d4 sys/uvm/uvm_swap.c:1784 #6 uvm_pager_put+0xff sys/uvm/uvm_pager.c:530 #7 uvmpd_scan_inactive+0x3e9 sys/uvm/uvm_pdaemon.c:790 #8 uvmpd_scan+0x87 sys/uvm/uvm_pdaemon.c:925 #9 uvm_pageout+0x4fc sys/uvm/uvm_pdaemon.c:305 #10 proc_trampoline+0x10 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83976cd0) #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_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvmpd_scan_inactive+0x43e sys/uvm/uvm_pdaemon.c:810 #4 uvmpd_scan+0x87 sys/uvm/uvm_pdaemon.c:925 #5 uvm_pageout+0x4fc sys/uvm/uvm_pdaemon.c:305 #6 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10222 11121K 15249K 166960K 18206 0 pcb 17 15K 16K 166960K 663 0 rtable 216 14K 14K 166960K 1455 0 pf 50 20K 67488K 166960K 703 0 ifaddr 38 7K 8K 166960K 271 0 ifgroup 71 3K 3K 166960K 469 0 sysctl 4 1K 9K 166960K 41 0 counters 74 37K 38K 166960K 606 0 ioctlops 3 4K 8K 166960K 2746 0 iov 0 0K 28K 166960K 191 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1596 100K 100K 166960K 6152 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 17 0 VM map 2 1K 1K 166960K 2 0 sem 20 11K 13K 166960K 31 0 dirhash 12 2K 3K 166960K 72 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 4086 0 sigio 0 0K 0K 166960K 179 0 proc 72 115K 164K 166960K 1256 0 subproc 94 5K 5K 166960K 241 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 769 0 in_multi 67 5K 7K 166960K 373 0 ether_multi 1 0K 0K 166960K 34 0 mrt 1 0K 0K 166960K 23 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 115 519K 519K 166960K 115 0 exec 0 0K 1K 166960K 1175 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 6 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 265 210K 210K 166960K 36928 0 UVM aobj 144 32K 32K 166960K 153 0 pinsyscall 42 84K 104K 166960K 5554 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 1K 166960K 314 0 NDP 15 0K 2K 166960K 194 0 temp 97 8676K 8801K 166960K 204798 0 kqueue 13 20K 30K 166960K 713 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 120 365 0 362 2 1 1 2 0 8 0 rtentry 176 364 0 289 7 2 5 6 0 8 0 unpcb 144 2836 0 2818 28 27 1 6 0 8 0 syncache 336 14 0 14 7 7 0 1 0 8 0 tcpqe 32 5 0 5 2 2 0 1 0 8 0 tcpcb 736 1361 0 1357 25 24 1 7 0 8 0 arp 136 63 0 47 1 0 1 1 0 8 0 inpcb 328 4400 0 4390 39 37 2 10 0 8 0 nd6 152 74 0 58 2 1 1 2 0 8 0 pkpcb 40 92 0 92 12 12 0 1 0 8 0 kcovpl 48 24 0 16 1 0 1 1 0 8 0 mppekey 1024 3 0 3 3 3 0 1 0 8 0 ppxss 1192 217 0 217 7 7 0 1 0 8 0 pppxif 1504 24 0 24 10 10 0 1 0 8 0 pffrag 232 28 0 22 1 0 1 1 0 482 0 pffrnode 88 26 0 20 1 0 1 1 0 8 0 pffrent 40 44 0 38 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 80 0 75 4 3 1 1 0 8 0 pfanchor 1288 5 0 2 2 1 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 239 0 187 1 0 1 1 0 8 0 pfstkey 128 249 0 197 3 0 3 3 0 8 0 pfstate 448 242 0 191 10 1 9 9 0 8 0 pfrule 1344 115 0 32 10 3 7 7 0 8 0 rttmr 136 5 0 5 5 5 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1494 0 1182 36 16 20 32 0 8 0 art_table 40 1497 0 1182 6 0 6 6 0 8 0 art_node 32 351 0 283 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 11 2 1 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 24 0 6 1 0 1 1 0 8 0 shmpl 112 133 0 5 4 0 4 4 0 8 0 dirhash 1024 57 0 40 3 0 3 3 0 8 0 dino2pl 256 8943 0 7414 96 0 96 96 0 8 0 ffsino 296 8943 0 7414 120 2 118 118 0 8 0 nchpl 144 14329 0 12582 66 1 65 65 0 8 0 rtmask 32 22 0 22 9 9 0 1 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 53895 0 53895 6 5 1 2 0 8 1 percpumem 16 318 0 266 1 0 1 1 0 8 0 vcpupl 3968 15 0 2 3 1 2 2 0 8 0 vmpool 840 17 0 4 3 1 2 2 0 8 0 pfiaddrpl 120 4 0 2 2 1 1 1 0 8 0 kstatmem 264 308 0 274 3 0 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 17 0 17 7 7 0 1 0 8 0 scxspl 216 117229 0 117228 21 20 1 8 1 8 0 plimitpl 152 1129 0 1106 1 0 1 1 0 8 0 sigapl 424 4355 0 4303 9 3 6 8 0 8 0 knotepl 120 688 0 0 18 0 18 18 0 8 0 kqueuepl 224 1591 0 1580 20 19 1 5 0 8 0 pipepl 344 779 0 748 22 18 4 9 0 8 0 fdescpl 528 4306 0 4275 3 0 3 3 0 8 0 filepl 160 31400 0 31108 53 40 13 18 0 8 0 lockfpl 104 2526 0 2523 6 5 1 4 0 8 0 lockfspl 48 1007 0 1004 1 0 1 1 0 8 0 sessionpl 144 46 0 37 1 0 1 1 0 8 0 pgrppl 48 155 0 133 1 0 1 1 0 8 0 ucredpl 104 5286 0 5273 1 0 1 1 0 8 0 zombiepl 144 4649 0 4646 3 2 1 1 0 8 0 processpl 1232 4355 0 4303 6 0 6 6 0 8 0 procpl 664 10209 0 10151 8 2 6 8 0 8 0 sosppl 176 27 0 26 9 8 1 1 0 8 0 sockpl 752 7780 0 7749 79 75 4 17 0 8 0 mcl64k 65536 33 0 0 4 1 3 4 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 132 0 0 17 0 17 17 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 141 0 0 10 4 6 10 0 8 0 mtagpl 96 104 0 0 3 0 3 3 0 8 0 mbufpl 256 1617 0 0 91 0 91 91 0 8 0 bufpl 280 62830 0 56692 457 10 447 457 0 8 8 anonpl 32 20461 0 0 166 1 165 165 0 246 0 amapchunkpl 152 148585 0 147977 87 61 26 40 0 158 1 amappl16 200 15659 0 15381 142 113 29 51 0 8 0 amappl15 192 2 0 1 2 1 1 1 0 8 0 amappl14 184 4 0 4 2 2 0 1 0 8 0 amappl13 176 583 0 582 1 0 1 1 0 8 0 amappl12 168 4786 0 4744 3 1 2 3 0 8 0 amappl11 160 4 0 4 2 2 0 1 0 8 0 amappl10 152 46 0 31 1 0 1 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 39 0 36 1 0 1 1 0 8 0 amappl7 128 138 0 136 1 0 1 1 0 8 0 amappl6 120 451 0 437 1 0 1 1 0 8 0 amappl5 112 80 0 68 1 0 1 1 0 8 0 amappl4 104 527 0 495 1 0 1 1 0 8 0 amappl3 96 22852 0 22756 4 1 3 3 0 8 0 amappl2 88 4440 0 4361 2 0 2 2 0 8 0 amappl1 80 28920 0 28320 19 4 15 15 0 8 0 amappl 88 35321 0 35140 5 0 5 5 0 92 0 uvmvnodes 80 218 0 0 5 0 5 5 0 8 0 dma65536 65536 4 0 4 3 3 0 1 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma8192 8192 2 0 2 2 2 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 2 0 1 1 0 1 1 0 8 0 dma256 256 12 0 12 5 5 0 1 0 8 0 dma128 128 259 0 259 4 4 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 152 0 9 3 0 3 3 0 8 0 uaoeltpl 96 27216 1 25904 32 0 32 32 0 8 0 uaddrrnd 24 4306 0 4275 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4306 0 4275 1 0 1 1 0 8 0 vmmpekpl 168 32333 0 32267 4 0 4 4 0 8 0 vmmpepl 168 278799 0 276635 206 75 131 131 0 357 18 vmsppl 488 4305 0 4275 8 3 5 5 0 8 0 rwobjpl 80 69586 0 67952 63 24 39 45 0 8 0 pdppl 4096 8654 0 8571 140 55 85 88 0 8 2 pvpl 32 357431 0 0 2882 1 2881 2881 0 265 0 pmappl 256 4322 0 4279 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 471 0 129 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8332f212) at panic+0x1e5 sys/kern/subr_prf.c:198 uao_set_swslot(fffffd8059d7a298,ab7a0,6fb8) at uao_set_swslot+0x443 uvmpd_scan_inactive(0,8d3d) at uvmpd_scan_inactive+0x1035 sys/uvm/uvm_pdaemon.c:728 uvmpd_scan(0,8d3d,3) at uvmpd_scan+0x87 sys/uvm/uvm_pdaemon.c:925 uvm_pageout(ffff8000fffffc88) at uvm_pageout+0x4fc sys/uvm/uvm_pdaemon.c:305 end trace frame: 0x0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) 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 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5