uvm_fault(0xffffffff838fce98, 0xffff8000253b2004, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs_fragextend+0x1c8: movl 0x4(%rbx),%r14d TID PID UID PRFLAGS PFLAGS CPU COMMAND 61475 52326 0 0 0 1 syz-executor *371210 77492 0 0x2 0x1 0K syz-executor ffs_fragextend(fffffd806f562bb8,4,78ae8,3000,3800) at ffs_fragextend+0x1c8 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_fragextend(fffffd806f562bb8,4,78ae8,3000,3800) at ffs_fragextend+0x1c8 sys/ufs/ffs/ffs_alloc.c:890 ffs_realloccg(fffffd806f562bb8,2,78ae8,3000,3800,fffffd80097fb270,b28f66ed1551b04,fffffd806da64a70) at ffs_realloccg+0x53a sys/ufs/ffs/ffs_alloc.c:225 ffs2_balloc(fffffd806f562bb8,afb1,58,fffffd80097fb270,1,ffff80002a3ce4a8) at ffs2_balloc+0x54d sys/ufs/ffs/ffs_balloc.c:516 ffs_write(ffff80002a3ce530) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd806abc48b8,ffff80002a3ce5e0,3,fffffd80097fb270) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80002a282550,fffffd806abc48b8,fffffd80097fb270,ffff80002a3ce6b0,ffff80002a3ce690) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsyscall(ffff80002a282550,5b,10,ffff80002a3ce840) at ktrsyscall+0x340 ktrwrite sys/kern/kern_ktrace.c:-1 [inline] ktrsyscall(ffff80002a282550,5b,10,ffff80002a3ce840) at ktrsyscall+0x340 sys/kern/kern_ktrace.c:183 syscall(ffff80002a3ce840) at syscall+0x304 mi_syscall sys/sys/syscall_mi.h:154 [inline] syscall(ffff80002a3ce840) at syscall+0x304 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b39b3a44e50, count: 6 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: uvm_fault(0xffffffff838fce98, 0xffff8000253b2004, 0, 1) -> d ddb{0}> trace ffs_fragextend(fffffd806f562bb8,4,78ae8,3000,3800) at ffs_fragextend+0x1c8 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_fragextend(fffffd806f562bb8,4,78ae8,3000,3800) at ffs_fragextend+0x1c8 sys/ufs/ffs/ffs_alloc.c:890 ffs_realloccg(fffffd806f562bb8,2,78ae8,3000,3800,fffffd80097fb270,b28f66ed1551b04,fffffd806da64a70) at ffs_realloccg+0x53a sys/ufs/ffs/ffs_alloc.c:225 ffs2_balloc(fffffd806f562bb8,afb1,58,fffffd80097fb270,1,ffff80002a3ce4a8) at ffs2_balloc+0x54d sys/ufs/ffs/ffs_balloc.c:516 ffs_write(ffff80002a3ce530) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd806abc48b8,ffff80002a3ce5e0,3,fffffd80097fb270) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80002a282550,fffffd806abc48b8,fffffd80097fb270,ffff80002a3ce6b0,ffff80002a3ce690) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsyscall(ffff80002a282550,5b,10,ffff80002a3ce840) at ktrsyscall+0x340 ktrwrite sys/kern/kern_ktrace.c:-1 [inline] ktrsyscall(ffff80002a282550,5b,10,ffff80002a3ce840) at ktrsyscall+0x340 sys/kern/kern_ktrace.c:183 syscall(ffff80002a3ce840) at syscall+0x304 mi_syscall sys/sys/syscall_mi.h:154 [inline] syscall(ffff80002a3ce840) at syscall+0x304 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b39b3a44e50, count: -9 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a3ce1d0 rbx 0xffff8000253b2000 rdx 0 rcx 0xffff80002a282550 rax 0xfffffd806856ea10 r8 0xffffffffffffffff r9 0x78ae8 acpi_pdirpa+0x64959 r10 0xffff80002a3ce3a8 r11 0x9ac01261568e8873 r12 0x7 r13 0xffff800000b2d800 r14 0 r15 0xffff800000b2d800 rip 0xffffffff813311b8 ffs_fragextend+0x1c8 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a3ce100 ss 0x10 ffs_fragextend+0x1c8: movl 0x4(%rbx),%r14d ddb{0}> show proc PROC (syz-executor) tid=371210 pid=77492 tcnt=1 stat=onproc flags process=2 proc=1 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2827e8,0xffff8000333e9278 process=0xffff8000fffeeb68 user=0xffff80002a3c9000, vmspace=0xfffffd800b027b70 estcpu=34, cpticks=83, pctcpu=0.24, user=2, sys=81, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 52326 61475 55666 0 7 0 syz-executor 52326 258652 55666 0 2 0x4000000 syz-executor 70068 502126 77742 0 2 0 syz-executor 70068 19388 77742 0 2 0x4000000 syz-executor 58792 485622 8869 0 2 0 syz-executor 58792 143882 8869 0 3 0x4000080 fifow syz-executor 58792 411491 8869 0 3 0x4000080 fsleep syz-executor 8887 147798 62575 0 2 0xc80 syz-executor 8887 269827 62575 0 3 0x4000080 ttyout syz-executor 8887 431777 62575 0 3 0x4000080 netacc syz-executor 8887 240148 62575 0 3 0x4000080 fsleep syz-executor 93966 61987 77492 60929 2 0xc90 syz-executor 93966 209677 77492 60929 3 0x4000090 ttyout syz-executor 93966 380168 77492 60929 3 0x4000090 fsleep syz-executor 10161 459336 88170 0 2 0xc80 syz-executor 10161 313331 88170 0 3 0x4000080 kqread syz-executor 10161 82857 88170 0 3 0x4000080 fsleep syz-executor 8869 100263 42285 0 2 0xc82 syz-executor 38508 450084 0 0 3 0x14200 acct acct 20793 202769 42285 0 2 0xc82 syz-executor 62575 338239 42285 0 2 0xc82 syz-executor 88373 181771 1 0 3 0x100083 ttyopn getty 63065 439307 0 0 3 0x14200 bored sosplice *77492 371210 42285 0 7 0x3 syz-executor 88170 333026 42285 0 2 0xc82 syz-executor 93016 5025 42285 0 2 0xc82 syz-executor 55666 151363 42285 0 2 0xc82 syz-executor 77742 109812 42285 0 3 0x82 nanoslp syz-executor 42285 408966 50748 0 3 0x82 kqread syz-executor 50748 359214 75392 0 3 0x10008a sigsusp ksh 75392 122064 83632 0 3 0x98 kqread sshd-session 83632 418963 80184 0 3 0x92 kqread sshd-session 80184 411363 1 0 3 0x88 kqread sshd 10035 329319 21501 74 3 0x1100092 bpf pflogd 21501 207245 1 0 3 0x80 sbwait pflogd 24478 299146 20063 73 3 0x1100090 kqread syslogd 20063 399357 1 0 3 0x100082 sbwait syslogd 81916 520245 1 0 3 0x100080 kqread resolvd 24936 493026 79187 77 3 0x100092 kqread dhcpleased 38802 108552 79187 77 3 0x100092 kqread dhcpleased 79187 444503 1 0 3 0x80 kqread dhcpleased 3797 510990 0 0 3 0x14200 bored smr 81187 219836 0 0 2 0x14200 zerothread 67695 226094 0 0 3 0x14200 aiodoned aiodoned 61894 361464 0 0 3 0x14200 syncer update 98049 197294 0 0 3 0x14200 cleaner cleaner 95379 25775 0 0 3 0x14200 reaper reaper 109 201978 0 0 3 0x14200 pgdaemon pagedaemon 48401 376671 0 0 3 0x14200 bored viomb 48836 214254 0 0 3 0x40014200 acpi0 acpi0 92344 94160 0 0 3 0x40014200 idle1 22658 178122 0 0 3 0x14200 bored softnet1 51107 299313 0 0 3 0x14200 bored softnet0 82926 404215 0 0 3 0x14200 bored systqmp 59178 237783 0 0 3 0x14200 bored systq 70532 336343 0 0 3 0x14200 tmoslp softclockmp 94248 52750 0 0 3 0x40014200 tmoslp softclock 99163 125112 0 0 3 0x40014200 idle0 1 152684 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 77492 (syz-executor) thread 0xffff80002a282550 (371210) exclusive rrwlock inode r = 0 (0xfffffd806f562c58) #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 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 ktrwriteraw+0x175 sys/kern/kern_ktrace.c:688 #7 ktrsyscall+0x340 ktrwrite sys/kern/kern_ktrace.c:-1 [inline] #7 ktrsyscall+0x340 sys/kern/kern_ktrace.c:183 #8 syscall+0x304 mi_syscall sys/sys/syscall_mi.h:154 [inline] #8 syscall+0x304 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838f9630) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 ktrsyscall+0x2c7 ktrwrite sys/kern/kern_ktrace.c:-1 [inline] #1 ktrsyscall+0x2c7 sys/kern/kern_ktrace.c:183 #2 syscall+0x304 mi_syscall sys/sys/syscall_mi.h:154 [inline] #2 syscall+0x304 sys/arch/amd64/amd64/trap.c:746 #3 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10209 11035K 11702K 166960K 12184 0 pcb 18 13K 20K 166960K 230 0 rtable 204 9K 9K 166960K 512 0 pf 38 18K 81K 166960K 143 0 ifaddr 39 6K 8K 166960K 98 0 ifgroup 55 2K 2K 166960K 157 0 sysctl 4 1K 9K 166960K 13 0 counters 68 36K 37K 166960K 170 0 ioctlops 0 0K 4K 166960K 1777 0 iov 0 0K 24K 166960K 124 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1364 86K 86K 166960K 2040 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 16 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 46 0 dirhash 12 2K 2K 166960K 45 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 236K 166960K 1224 0 sigio 0 0K 0K 166960K 14 0 proc 73 115K 164K 166960K 721 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 170 0 in_multi 85 6K 7K 166960K 187 0 ether_multi 1 0K 0K 166960K 14 0 mrt 1 0K 0K 166960K 13 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 620 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 262 160K 176K 166960K 12835 0 UVM aobj 10 2K 2K 166960K 12 0 pinsyscall 43 86K 103K 166960K 2421 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 73 0 NDP 12 0K 2K 166960K 69 0 temp 72 8649K 8755K 166960K 56959 0 kqueue 15 24K 33K 166960K 253 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 120 110 0 106 1 0 1 1 0 8 0 rtentry 176 156 0 73 5 0 5 5 0 8 0 unpcb 144 939 0 915 5 2 3 4 0 8 2 syncache 336 8 0 8 3 3 0 1 0 8 0 tcpqe 32 3 0 3 2 2 0 1 0 8 0 tcpcb 736 379 0 371 8 1 7 7 0 8 6 arp 136 18 0 6 1 0 1 1 0 8 0 inpcb 328 1223 0 1207 12 5 7 7 0 8 5 nd6 144 31 0 11 1 0 1 1 0 8 0 pkpcb 40 13 0 13 4 3 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 39 0 39 2 1 1 1 0 8 1 pppxif 1504 3 0 3 2 1 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 8 0 1 1 0 1 1 0 482 0 pffrnode 88 8 0 1 1 0 1 1 0 8 0 pffrent 40 18 0 10 1 0 1 1 0 8 0 pfosfp 40 1430 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1430 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 70 0 27 1 0 1 1 0 8 0 pfstkey 128 73 0 29 2 0 2 2 0 8 0 pfstate 384 69 0 28 5 0 5 5 0 8 0 pfrule 1344 25 0 20 2 1 1 2 0 8 0 rttmr 136 5 0 5 2 2 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 735 0 352 32 7 25 28 0 8 0 art_table 40 738 0 352 5 0 5 5 0 8 0 art_node 32 152 0 78 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 41 0 31 1 0 1 1 0 8 0 shmpl 112 9 0 2 1 0 1 1 0 8 0 dirhash 1024 40 0 23 3 0 3 3 0 8 0 dino2pl 256 3534 0 2022 95 0 95 95 0 8 0 ffsino 296 3534 0 2022 117 0 117 117 0 8 0 nchpl 144 5172 0 3466 64 0 64 64 0 8 0 rtmask 32 5 0 5 3 2 1 1 0 8 1 uvmvnodes 80 3922 0 0 81 0 81 81 0 8 0 vnodes 216 3922 0 0 218 0 218 218 0 8 0 namei 1024 18286 0 18286 1 0 1 1 0 8 1 percpumem 16 100 0 51 1 0 1 1 0 8 0 kstatmem 264 98 0 70 4 1 3 3 0 8 1 scsiplug 72 7 0 7 3 2 1 1 0 8 1 scxspl 216 22210 0 22210 10 6 4 8 1 8 4 plimitpl 152 352 0 335 1 0 1 1 0 8 0 sigapl 424 1542 0 1492 9 2 7 8 0 8 0 knotepl 120 535 0 0 16 0 16 16 0 8 0 kqueuepl 224 614 0 602 10 5 5 7 0 8 4 pipepl 344 207 0 180 3 0 3 3 0 8 0 fdescpl 528 1499 0 1467 3 0 3 3 0 8 0 filepl 160 9507 0 9269 20 5 15 16 0 8 4 lockfpl 104 634 0 632 4 3 1 4 0 8 0 lockfspl 48 162 0 160 1 0 1 1 0 8 0 sessionpl 144 30 0 21 1 0 1 1 0 8 0 pgrppl 48 49 0 32 1 0 1 1 0 8 0 ucredpl 104 1164 0 1150 1 0 1 1 0 8 0 zombiepl 144 1494 0 1492 1 0 1 1 0 8 0 processpl 1232 1542 0 1492 6 0 6 6 0 8 0 procpl 664 3351 0 3290 9 3 6 8 0 8 0 sosppl 168 8 0 8 2 1 1 1 0 8 1 sockpl 752 2347 0 2303 18 6 12 12 0 8 7 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 67 0 0 8 0 8 8 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 1155 0 0 72 0 72 72 0 8 0 bufpl 280 8974 0 2831 439 0 439 439 0 8 0 anonpl 32 8813 0 0 72 1 71 71 0 246 0 amapchunkpl 152 42585 0 41980 47 19 28 40 0 158 0 amappl16 200 4502 0 4467 21 9 12 16 0 8 5 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 164 0 152 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 2206 0 2174 4 1 3 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 6 0 5 1 0 1 1 0 8 0 amappl9 144 249 0 249 2 1 1 1 0 8 1 amappl8 136 20 0 17 1 0 1 1 0 8 0 amappl7 128 123 0 110 1 0 1 1 0 8 0 amappl6 120 230 0 227 1 0 1 1 0 8 0 amappl5 112 137 0 127 1 0 1 1 0 8 0 amappl4 104 325 0 305 1 0 1 1 0 8 0 amappl3 96 7423 0 7316 3 0 3 3 0 8 0 amappl2 88 1779 0 1698 2 0 2 2 0 8 0 amappl1 80 13734 0 13129 15 0 15 15 0 8 0 amappl 88 11892 0 11701 5 0 5 5 0 92 0 dma65536 65536 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 1 1 1 0 8 1 dma128 128 255 0 255 2 1 1 1 0 8 1 dma64 64 39 0 39 2 2 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 11 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1500 0 1468 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1500 0 1468 1 0 1 1 0 8 0 vmmpekpl 168 12760 0 12708 3 0 3 3 0 8 0 vmmpepl 168 98736 0 96670 106 7 99 104 0 357 4 vmsppl 488 1499 0 1468 5 0 5 5 0 8 0 rwobjpl 80 31299 0 26398 103 0 103 103 0 8 2 pdppl 4096 3008 0 2936 116 42 74 86 0 8 2 pvpl 32 17309 0 0 141 1 140 140 0 265 0 pmappl 256 1499 0 1468 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 369 0 58 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ffs_fragextend(fffffd806f562bb8,4,78ae8,3000,3800) at ffs_fragextend+0x1c8 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_fragextend(fffffd806f562bb8,4,78ae8,3000,3800) at ffs_fragextend+0x1c8 sys/ufs/ffs/ffs_alloc.c:890 ffs_realloccg(fffffd806f562bb8,2,78ae8,3000,3800,fffffd80097fb270,b28f66ed1551b04,fffffd806da64a70) at ffs_realloccg+0x53a sys/ufs/ffs/ffs_alloc.c:225 ffs2_balloc(fffffd806f562bb8,afb1,58,fffffd80097fb270,1,ffff80002a3ce4a8) at ffs2_balloc+0x54d sys/ufs/ffs/ffs_balloc.c:516 ffs_write(ffff80002a3ce530) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd806abc48b8,ffff80002a3ce5e0,3,fffffd80097fb270) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80002a282550,fffffd806abc48b8,fffffd80097fb270,ffff80002a3ce6b0,ffff80002a3ce690) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsyscall(ffff80002a282550,5b,10,ffff80002a3ce840) at ktrsyscall+0x340 ktrwrite sys/kern/kern_ktrace.c:-1 [inline] ktrsyscall(ffff80002a282550,5b,10,ffff80002a3ce840) at ktrsyscall+0x340 sys/kern/kern_ktrace.c:183 syscall(ffff80002a3ce840) at syscall+0x304 mi_syscall sys/sys/syscall_mi.h:154 [inline] syscall(ffff80002a3ce840) at syscall+0x304 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b39b3a44e50, count: -9 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 end of kernel end trace frame: 0x72bf484fdf90, count: 12 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 end of kernel end trace frame: 0x72bf484fdf90, count: -3