uvm_fault(0xffffffff83a9b168, 0xffff800021765ff8, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs_indirtrunc+0x699: movq 0(%rax,%rbx,8),%rbx TID PID UID PRFLAGS PFLAGS CPU COMMAND * 78813 74744 0 0x2 0 0K syz-executor ffs_indirtrunc(fffffd806c64e968,fffffffffdf007f4,f7040,ffffffffffffffff,0,ffff80002a2fa018) at ffs_indirtrunc+0x699 sys/ufs/ffs/ffs_inode.c:495 ffs_indirtrunc(fffffd806c64e968,fffffffffdfff7f3,f7020,ffffffffffffffff,1,ffff80002a2fa118) at ffs_indirtrunc+0x730 sys/ufs/ffs/ffs_inode.c:499 ffs_indirtrunc(fffffd806c64e968,ffffffffffbff7f2,f6fe0,ffffffffffffffff,2,ffff80002a2fa318) at ffs_indirtrunc+0x730 sys/ufs/ffs/ffs_inode.c:499 ffs_truncate(fffffd806c64e968,0,0,ffffffffffffffff) at ffs_truncate+0x103f sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a2fa470) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806536ba58,ffff8000ffffd4c8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd806536ba58) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd806536b7d0,fffffd806536ba58,ffff80002a2fa5d8) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000ffffd4c8,ffffff9c,7da3f96ef900,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a2fa750) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2fa750) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7da3f96efdb0, count: 4 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(0xffffffff83a9b168, 0xffff800021765ff8, 0, 1) -> d ddb{0}> trace ffs_indirtrunc(fffffd806c64e968,fffffffffdf007f4,f7040,ffffffffffffffff,0,ffff80002a2fa018) at ffs_indirtrunc+0x699 sys/ufs/ffs/ffs_inode.c:495 ffs_indirtrunc(fffffd806c64e968,fffffffffdfff7f3,f7020,ffffffffffffffff,1,ffff80002a2fa118) at ffs_indirtrunc+0x730 sys/ufs/ffs/ffs_inode.c:499 ffs_indirtrunc(fffffd806c64e968,ffffffffffbff7f2,f6fe0,ffffffffffffffff,2,ffff80002a2fa318) at ffs_indirtrunc+0x730 sys/ufs/ffs/ffs_inode.c:499 ffs_truncate(fffffd806c64e968,0,0,ffffffffffffffff) at ffs_truncate+0x103f sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a2fa470) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806536ba58,ffff8000ffffd4c8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd806536ba58) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd806536b7d0,fffffd806536ba58,ffff80002a2fa5d8) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000ffffd4c8,ffffff9c,7da3f96ef900,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a2fa750) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2fa750) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7da3f96efdb0, count: -11 ddb{0}> show registers rdi 0x2 rsi 0x2 rbp 0xffff80002a2f9ff0 rbx 0x7ff rdx 0 rcx 0xffff8000ffffd4c8 rax 0xffff800021762000 r8 0xffffffffffffffff r9 0xffff80002a2fa018 r10 0xaec467ce183ed8ab r11 0x8a89d6c35d25240b r12 0xfffffffffdeffff6 r13 0x1 r14 0x2 r15 0xfffffd806c64e968 rip 0xffffffff81778c09 ffs_indirtrunc+0x699 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a2f9f00 ss 0x10 ffs_indirtrunc+0x699: movq 0(%rax,%rbx,8),%rbx ddb{0}> show proc PROC (syz-executor) tid=78813 pid=74744 tcnt=1 stat=onproc flags process=2 proc=0 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffd230,0xffff8000ffff3780 process=0xffff8000ffff4008 user=0xffff80002a2f5000, vmspace=0xfffffd800b063d58 estcpu=36, cpticks=29, pctcpu=0.16, user=0, sys=28, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 97246 323244 48417 0 3 0x80 nanoslp syz-executor 97246 95792 48417 0 2 0x4000000 syz-executor 97246 90943 48417 0 3 0x4000080 fsleep syz-executor 40849 514175 55825 0 3 0x80 nanoslp syz-executor 40849 155685 55825 0 3 0x4000080 kqpoll syz-executor 17366 1916 28191 60929 2 0x10 syz-executor 17366 197438 28191 60929 3 0x4000090 fsleep syz-executor 17366 207823 28191 60929 3 0x4000090 fsleep syz-executor 92443 317367 21964 0 3 0x100082 sbwait arp 21964 158227 20389 0 3 0x10008a sigsusp sh 48417 383388 83769 0 3 0x82 nanoslp syz-executor 28191 69990 83769 0 3 0x82 nanoslp syz-executor *74744 78813 83769 0 7 0x2 syz-executor 55825 52893 83769 0 3 0x82 nanoslp syz-executor 20389 517731 83769 0 3 0x82 wait syz-executor 83769 154760 17471 0 3 0x82 wait syz-executor 17471 370365 33110 0 3 0x10008a sigsusp ksh 33110 439298 61958 0 3 0x98 kqread sshd-session 61958 45640 76802 0 3 0x92 kqread sshd-session 62549 422437 1 0 3 0x100083 ttyin getty 76802 253038 1 0 3 0x88 kqread sshd 71242 488619 52287 74 3 0x1100092 bpf pflogd 52287 89166 1 0 3 0x80 sbwait pflogd 51308 312029 57222 73 3 0x1100090 kqread syslogd 57222 522717 1 0 3 0x100082 sbwait syslogd 3642 326763 1 0 3 0x100080 kqread resolvd 64947 422938 54440 77 3 0x100092 kqread dhcpleased 7688 358554 54440 77 3 0x100092 kqread dhcpleased 54440 429213 1 0 3 0x80 kqread dhcpleased 36061 357580 0 0 3 0x14200 bored smr 84933 172873 0 0 2 0x14200 zerothread 74135 657 0 0 3 0x14200 aiodoned aiodoned 94451 81473 0 0 3 0x14200 syncer update 21256 460773 0 0 3 0x14200 cleaner cleaner 89169 307694 0 0 3 0x14200 reaper reaper 28343 183363 0 0 3 0x14200 pgdaemon pagedaemon 3836 14812 0 0 3 0x14200 bored viomb 5631 133817 0 0 3 0x40014200 acpi0 acpi0 8369 101653 0 0 7 0x40014200 idle1 90489 338655 0 0 3 0x14200 bored softnet1 81553 249276 0 0 3 0x14200 bored softnet0 79715 121850 0 0 3 0x14200 smrbar systqmp 46857 75498 0 0 3 0x14200 bored systq 31050 58135 0 0 3 0x14200 tmoslp softclockmp 20446 255764 0 0 3 0x40014200 tmoslp softclock 32750 252022 0 0 3 0x40014200 idle0 1 145378 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 74744 (syz-executor) thread 0xffff8000ffffd4c8 (78813) exclusive rrwlock inode r = 0 (0xfffffd806c64ea08) #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 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d964d60) #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 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #13 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a46b40) #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 79715 (systqmp) thread 0xffff8000ffffe000 (121850) shared rwlock systqmp r = 0 (0xffffffff839063c8) #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 11065 12098K 12494K 166960K 12704 0 pcb 17 17K 19K 166960K 233 0 rtable 214 8K 9K 166960K 516 0 pf 37 18K 24K 166960K 105 0 ifaddr 39 6K 8K 166960K 78 0 ifgroup 51 2K 2K 166960K 111 0 sysctl 2 1K 9K 166960K 6 0 counters 68 36K 37K 166960K 122 0 ioctlops 0 0K 4K 166960K 1553 0 iov 0 0K 12K 166960K 20 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1524 96K 96K 166960K 1935 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 21 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 14 49K 93K 166960K 483 0 sigio 0 0K 0K 166960K 4 0 proc 72 115K 180K 166960K 639 0 subproc 63 3K 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 177 0 in_multi 83 6K 7K 166960K 139 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 17 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 462 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 211 144K 183K 166960K 6228 0 UVM aobj 10 2K 2K 166960K 11 0 pinsyscall 40 80K 108K 166960K 1779 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 11 0 NDP 13 0K 1K 166960K 49 0 temp 72 9083K 9148K 166960K 26197 0 kqueue 13 20K 29K 166960K 77 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 60 0 55 1 0 1 1 0 8 0 rtentry 176 156 0 67 5 0 5 5 0 8 0 unpcb 144 476 0 459 6 0 6 6 0 8 5 syncache 336 10 0 10 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 78 0 73 1 0 1 1 0 8 0 arp 136 25 0 9 1 0 1 1 0 8 0 inpcb 328 594 0 585 11 4 7 10 0 8 5 nd6 152 34 0 12 1 0 1 1 0 8 0 kcovpl 48 11 0 4 1 0 1 1 0 8 0 ppxss 1192 17 0 17 1 0 1 1 0 8 1 pppxif 1576 6 0 6 1 0 1 1 0 8 1 pfstscr 40 3 0 1 1 0 1 1 0 8 0 pffrag 232 4 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 5 0 2 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 1 0 1 1 0 1 1 0 8 1 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pftag 88 5 0 1 1 0 1 1 0 8 0 pfqueue 320 1 0 0 1 0 1 1 0 8 0 pfstitem 24 45 0 1 1 0 1 1 0 8 0 pfstkey 128 47 0 3 2 0 2 2 0 8 0 pfstate 448 46 0 3 5 0 5 5 0 8 0 pfrule 1360 28 0 22 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 595 0 218 28 0 28 28 0 8 3 art_table 40 597 0 218 5 0 5 5 0 8 0 art_node 32 156 0 75 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 0 1 0 1 1 0 8 0 semapl 112 19 0 9 1 0 1 1 0 8 0 shmpl 112 8 0 1 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2206 0 727 93 0 93 93 0 8 0 ffsino 296 2207 0 728 114 0 114 114 0 8 0 nchpl 144 2818 0 1094 64 0 64 64 0 8 0 rtmask 32 4 0 4 1 0 1 1 0 8 1 vnodes 216 2718 0 0 151 0 151 151 0 8 0 namei 1024 9715 0 9715 2 0 2 2 0 8 2 percpumem 16 76 0 27 1 0 1 1 0 8 0 kstatmem 264 59 0 34 3 0 3 3 0 8 1 scxspl 216 15886 0 15886 11 3 8 8 1 8 8 plimitpl 152 65 0 48 1 0 1 1 0 8 0 sigapl 424 813 0 768 7 0 7 7 0 8 0 knotepl 120 313 0 0 10 0 10 10 0 8 0 kqueuepl 224 177 0 167 5 0 5 5 0 8 4 pipepl 344 169 0 142 3 0 3 3 0 8 0 fdescpl 528 795 0 767 3 0 3 3 0 8 0 filepl 160 4594 0 4394 24 7 17 24 0 8 7 lockfpl 104 282 0 279 2 0 2 2 0 8 1 lockfspl 48 118 0 115 1 0 1 1 0 8 0 sessionpl 144 76 0 67 1 0 1 1 0 8 0 pgrppl 48 89 0 72 1 0 1 1 0 8 0 ucredpl 104 599 0 584 1 0 1 1 0 8 0 zombiepl 144 771 0 768 1 0 1 1 0 8 0 processpl 1232 813 0 768 5 0 5 5 0 8 0 procpl 664 1344 0 1294 6 0 6 6 0 8 0 sosppl 176 4 0 4 1 0 1 1 0 8 1 sockpl 752 1141 0 1110 20 9 11 18 0 8 7 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 121 0 0 16 0 16 16 0 8 0 mcl2k 2048 44 0 0 5 0 5 5 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 251 0 0 16 0 16 16 0 8 0 bufpl 280 6368 0 239 438 0 438 438 0 8 0 anonpl 32 9033 0 0 73 0 73 73 0 246 0 amapchunkpl 152 19428 0 19031 27 0 27 27 0 158 6 amappl16 200 3385 0 3369 19 6 13 17 0 8 8 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 472 0 470 1 0 1 1 0 8 0 amappl13 176 143 0 130 1 0 1 1 0 8 0 amappl12 168 1074 0 1047 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 65 0 51 1 0 1 1 0 8 0 amappl9 144 262 0 262 1 1 0 1 0 8 0 amappl8 136 120 0 117 1 0 1 1 0 8 0 amappl7 128 167 0 153 1 0 1 1 0 8 0 amappl6 120 188 0 186 1 0 1 1 0 8 0 amappl5 112 113 0 102 1 0 1 1 0 8 0 amappl4 104 325 0 306 1 0 1 1 0 8 0 amappl3 96 3720 0 3623 4 0 4 4 0 8 0 amappl2 88 635 0 570 2 0 2 2 0 8 0 amappl1 80 13572 0 12958 17 0 17 17 0 8 2 amappl 88 5332 0 5196 5 0 5 5 0 92 0 uvmvnodes 80 109 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 10 0 1 1 0 1 1 0 8 0 uaddrrnd 24 795 0 767 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 795 0 767 1 0 1 1 0 8 0 vmmpekpl 168 9055 0 8998 3 0 3 3 0 8 0 vmmpepl 168 62509 0 60765 109 0 109 109 0 357 13 vmsppl 488 794 0 767 5 0 5 5 0 8 0 rwobjpl 80 21509 0 20463 32 0 32 32 0 8 3 pdppl 4096 1597 0 1534 109 32 77 85 0 8 14 pvpl 32 17159 0 0 139 0 139 139 0 265 0 pmappl 256 794 0 767 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 292 0 35 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ffs_indirtrunc(fffffd806c64e968,fffffffffdf007f4,f7040,ffffffffffffffff,0,ffff80002a2fa018) at ffs_indirtrunc+0x699 sys/ufs/ffs/ffs_inode.c:495 ffs_indirtrunc(fffffd806c64e968,fffffffffdfff7f3,f7020,ffffffffffffffff,1,ffff80002a2fa118) at ffs_indirtrunc+0x730 sys/ufs/ffs/ffs_inode.c:499 ffs_indirtrunc(fffffd806c64e968,ffffffffffbff7f2,f6fe0,ffffffffffffffff,2,ffff80002a2fa318) at ffs_indirtrunc+0x730 sys/ufs/ffs/ffs_inode.c:499 ffs_truncate(fffffd806c64e968,0,0,ffffffffffffffff) at ffs_truncate+0x103f sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a2fa470) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806536ba58,ffff8000ffffd4c8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd806536ba58) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd806536b7d0,fffffd806536ba58,ffff80002a2fa5d8) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000ffffd4c8,ffffff9c,7da3f96ef900,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a2fa750) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2fa750) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7da3f96efdb0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299adff0) 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(ffff8000299adff0) at sched_idle+0x371 sys/kern/kern_sched.c:192 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299adff0) 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(ffff8000299adff0) at sched_idle+0x371 sys/kern/kern_sched.c:192 end trace frame: 0x0, count: -5