uvm_fault(0xfffffd806b885020, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND 400342 4888 0 0 0 1 syz-executor *281475 5495 0 0 0x4000000 0K syz-executor ktrops(ffff8000fffe27e0,ffffffffffffffff,0,a0c7df9f,fffffd80698e6a68,fffffd80097fb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000fffe27e0,ffffffffffffffff,0,a0c7df9f,fffffd80698e6a68,fffffd80097fb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80698e6a68,4,20c7df9f,0,ffff8000fffe27e0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80698e6a68,4,20c7df9f,0,ffff8000fffe27e0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000fffe27e0,ffff8000383e4370,ffff8000383e42c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000383e4370) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000383e4370) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd080f53b6c0, count: 10 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(0xfffffd806b885020, 0xf, 0, 1) -> e ddb{0}> trace ktrops(ffff8000fffe27e0,ffffffffffffffff,0,a0c7df9f,fffffd80698e6a68,fffffd80097fb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000fffe27e0,ffffffffffffffff,0,a0c7df9f,fffffd80698e6a68,fffffd80097fb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80698e6a68,4,20c7df9f,0,ffff8000fffe27e0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80698e6a68,4,20c7df9f,0,ffff8000fffe27e0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000fffe27e0,ffff8000383e4370,ffff8000383e42c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000383e4370) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000383e4370) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd080f53b6c0, count: -5 ddb{0}> show registers rdi 0xffff8000fffe27e0 rsi 0xffffffffffffffff rbp 0xffff8000383e4090 rbx 0xfffffd80097fb4e0 rdx 0 rcx 0xffff8000fffe27e0 rax 0xffffffff83849ff0 cpu_info_full_primary+0x1ff0 r8 0xfffffd80698e6a68 r9 0xfffffd80097fb4e0 r10 0x92bccde652e43393 r11 0xc851ae780e2399c2 r12 0xffff8000fffe27e0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff819aa048 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000383e4010 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb{0}> show proc PROC (syz-executor) tid=281475 pid=5495 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffe2550,0xffff8000fffe22d0 process=0xffff8000fffe5858 user=0xffff8000383df000, vmspace=0xfffffd806b885020 estcpu=6, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 4888 400342 3985 0 7 0 syz-executor 4888 316137 3985 0 3 0x4000080 fsleep syz-executor 5495 161990 50692 0 2 0 syz-executor * 5495 281475 50692 0 7 0x4000000 syz-executor 51155 85726 51672 0 2 0 syz-executor 51155 211412 51672 0 3 0x4000080 fsleep syz-executor 28702 393785 3641 0 2 0 syz-executor 28702 515156 3641 0 3 0x4000080 lockf syz-executor 28095 390078 0 0 3 0x14200 bored sosplice 96405 168373 0 0 3 0x14200 acct acct 74937 29078 79921 0 2 0x2 syz-executor 51672 72543 79921 0 3 0x82 nanoslp syz-executor 3641 395304 79921 0 3 0x82 nanoslp syz-executor 50692 304652 79921 0 3 0x82 nanoslp syz-executor 13776 105196 79921 0 3 0x82 nanoslp syz-executor 43000 205058 79921 0 2 0x2 syz-executor 91014 379590 79921 0 2 0x2 syz-executor 3985 44973 79921 0 3 0x82 nanoslp syz-executor 79921 17478 26558 0 2 0x2 syz-executor 26558 118099 13721 0 3 0x10008a sigsusp ksh 13721 182191 78373 0 3 0x98 kqread sshd-session 78373 360632 47265 0 3 0x92 kqread sshd-session 38958 461441 1 0 3 0x100083 ttyin getty 47265 100562 1 0 3 0x88 kqread sshd 45231 391261 42760 74 3 0x1100092 bpf pflogd 42760 218758 1 0 3 0x80 sbwait pflogd 35366 351018 64417 73 3 0x1100090 kqread syslogd 64417 210503 1 0 3 0x100082 sbwait syslogd 4483 473202 1 0 3 0x100080 kqread resolvd 66556 430702 94428 77 3 0x100092 kqread dhcpleased 52898 182912 94428 77 3 0x100092 kqread dhcpleased 94428 113379 1 0 3 0x80 kqread dhcpleased 26069 3845 0 0 3 0x14200 bored smr 7528 293499 0 0 2 0x14200 zerothread 21951 152801 0 0 3 0x14200 aiodoned aiodoned 9684 403416 0 0 3 0x14200 syncer update 91676 60910 0 0 3 0x14200 cleaner cleaner 741 295932 0 0 3 0x14200 reaper reaper 61958 210844 0 0 3 0x14200 pgdaemon pagedaemon 30141 364479 0 0 3 0x14200 bored viomb 89124 288487 0 0 3 0x40014200 acpi0 acpi0 92676 191056 0 0 3 0x40014200 idle1 31999 72652 0 0 3 0x14200 bored softnet3 31305 135512 0 0 3 0x14200 bored softnet2 71524 117546 0 0 3 0x14200 bored softnet1 9934 148662 0 0 3 0x14200 bored softnet0 97859 16025 0 0 3 0x14200 bored systqmp 37751 134610 0 0 3 0x14200 bored systq 43648 85853 0 0 3 0x14200 tmoslp softclockmp 6372 189756 0 0 3 0x40014200 tmoslp softclock 1447 262363 0 0 3 0x40014200 idle0 1 54550 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 5495 (syz-executor) thread 0xffff8000fffe27e0 (281475) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8390cd30) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2da sys/kern/kern_synch.c:366 #3 biowait+0xc1 sys/kern/vfs_bio.c:1242 #4 bwrite+0x2e5 sys/kern/vfs_bio.c:754 #5 ffs_update+0x34f sys/ufs/ffs/ffs_inode.c:111 #6 ffs_truncate+0xcb6 sys/ufs/ffs/ffs_inode.c:-1 #7 ufs_inactive+0x206 sys/ufs/ufs/ufs_inode.c:84 #8 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:498 #9 vrele+0x129 sys/kern/vfs_subr.c:844 #10 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 #11 ktrops+0x271 sys/kern/kern_ktrace.c:573 #12 doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] #12 doktrace+0x6dd sys/kern/kern_ktrace.c:517 #13 sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 #14 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #14 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #15 Xsyscall+0x128 Process 74937 (syz-executor) thread 0xffff8000ffff0020 (29078) exclusive rrwlock inode r = 0 (0xfffffd806c5d5c20) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_closefile+0x111 vn_close sys/kern/vfs_vnops.c:292 [inline] #5 vn_closefile+0x111 sys/kern/vfs_vnops.c:615 #6 fdrop+0x126 sys/kern/kern_descrip.c:1267 #7 closef+0x192 sys/kern/kern_descrip.c:1251 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 91014 (syz-executor) thread 0xffff8000ffffcf68 (379590) exclusive rrwlock inode r = 0 (0xfffffd806c0ae1c0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d312670) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10212 11224K 11281K 166960K 11372 0 pcb 17 12K 12K 166960K 38 0 rtable 210 6K 7K 166960K 371 0 pf 34 17K 18K 166960K 54 0 ifaddr 43 7K 7K 166960K 55 0 ifgroup 55 2K 2K 166960K 68 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 37K 166960K 210 0 ioctlops 0 0K 4K 166960K 1558 0 iov 0 0K 4K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1338 84K 84K 166960K 1415 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 11 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 89K 166960K 207 0 proc 71 91K 128K 166960K 536 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 6 0 in_multi 101 7K 7K 166960K 107 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 378 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 217 167K 178K 166960K 3530 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 40 80K 103K 166960K 1328 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 12 0K 2K 166960K 32 0 temp 36 8686K 8750K 166960K 5477 0 kqueue 13 20K 26K 166960K 43 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 40 0 37 1 0 1 1 0 8 0 rtentry 176 116 0 19 6 0 6 6 0 8 0 unpcb 144 88 0 71 2 0 2 2 0 8 1 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 26 0 22 1 0 1 1 0 8 0 arp 128 18 0 0 1 0 1 1 0 8 0 inpcb 328 134 0 127 2 0 2 2 0 8 1 nd6 144 24 0 0 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 69 0 69 1 0 1 1 0 8 1 pppxif 1504 2 0 2 1 0 1 1 0 8 1 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 28 0 0 1 0 1 1 0 8 0 pfstkey 128 28 0 0 1 0 1 1 0 8 0 pfstate 384 28 0 0 3 0 3 3 0 8 0 pfrule 1344 21 0 15 2 0 2 2 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 496 0 59 29 0 29 29 0 8 1 art_table 32 497 0 59 4 0 4 4 0 8 0 art_node 16 114 0 27 1 0 1 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1684 0 173 95 0 95 95 0 8 0 ffsino 288 1684 0 173 109 0 109 109 0 8 0 nchpl 144 1977 0 290 63 0 63 63 0 8 0 uvmvnodes 80 1803 0 0 37 0 37 37 0 8 0 vnodes 216 1803 0 0 101 0 101 101 0 8 0 namei 1024 6154 0 6153 1 0 1 1 0 8 0 percpumem 16 120 0 71 1 0 1 1 0 8 0 kstatmem 264 34 0 8 3 0 3 3 0 8 1 scxspl 216 6257 0 6257 2 0 2 2 1 8 2 plimitpl 152 37 0 20 1 0 1 1 0 8 0 sigapl 424 520 0 471 8 1 7 7 0 8 1 knotepl 120 69 0 0 3 0 3 3 0 8 0 kqueuepl 224 81 0 72 3 0 3 3 0 8 2 pipepl 336 109 0 82 3 0 3 3 0 8 0 fdescpl 520 500 0 471 3 0 3 3 0 8 0 filepl 160 1920 0 1706 11 0 11 11 0 8 1 lockfpl 104 41 0 36 1 0 1 1 0 8 0 lockfspl 48 15 0 11 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 13 1 0 1 1 0 8 0 ucredpl 104 159 0 146 1 0 1 1 0 8 0 zombiepl 144 472 0 471 1 0 1 1 0 8 0 processpl 1240 520 0 471 5 0 5 5 0 8 0 procpl 656 635 0 582 7 1 6 6 0 8 0 sockpl 728 266 0 239 4 0 4 4 0 8 1 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 194 0 0 13 0 13 13 0 8 0 bufpl 280 2390 0 122 162 0 162 162 0 8 0 anonpl 32 7558 0 0 61 0 61 61 0 246 0 amapchunkpl 152 10046 0 9625 26 0 26 26 0 158 6 amappl16 200 1141 0 1122 11 0 11 11 0 8 7 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 114 0 102 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1158 0 1129 3 1 2 2 0 8 0 amappl11 160 51 0 36 1 0 1 1 0 8 0 amappl10 152 4 0 3 1 0 1 1 0 8 0 amappl9 144 259 0 259 1 1 0 1 0 8 0 amappl8 136 18 0 16 1 0 1 1 0 8 0 amappl7 128 107 0 95 1 0 1 1 0 8 0 amappl6 120 174 0 171 1 0 1 1 0 8 0 amappl5 112 121 0 111 1 0 1 1 0 8 0 amappl4 104 324 0 306 1 0 1 1 0 8 0 amappl3 96 1745 0 1647 4 1 3 3 0 8 0 amappl2 88 643 0 583 2 0 2 2 0 8 0 amappl1 80 8636 0 8046 14 0 14 14 0 8 1 amappl 88 2825 0 2680 5 0 5 5 0 92 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 500 0 471 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 500 0 471 1 0 1 1 0 8 0 vmmpekpl 168 5682 0 5644 2 0 2 2 0 8 0 vmmpepl 168 37244 0 35408 96 0 96 96 0 357 8 vmsppl 480 499 0 471 5 0 5 5 0 8 1 rwobjpl 72 14207 0 11514 53 0 53 53 0 8 2 pdppl 4096 1008 0 942 100 28 72 84 0 8 6 pvpl 32 16918 0 0 137 0 137 137 0 265 0 pmappl 256 499 0 471 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 383 0 30 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ktrops(ffff8000fffe27e0,ffffffffffffffff,0,a0c7df9f,fffffd80698e6a68,fffffd80097fb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000fffe27e0,ffffffffffffffff,0,a0c7df9f,fffffd80698e6a68,fffffd80097fb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80698e6a68,4,20c7df9f,0,ffff8000fffe27e0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80698e6a68,4,20c7df9f,0,ffff8000fffe27e0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000fffe27e0,ffff8000383e4370,ffff8000383e42c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000383e4370) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000383e4370) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd080f53b6c0, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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 __mp_lock(ffffffff8390cb28) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff8390cb28) at __mp_lock+0x192 sys/kern/kern_lock.c:162 syscall(ffff80003bbf6840) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bbf6840) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x711e7d7379d0, count: 9 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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 __mp_lock(ffffffff8390cb28) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff8390cb28) at __mp_lock+0x192 sys/kern/kern_lock.c:162 syscall(ffff80003bbf6840) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bbf6840) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x711e7d7379d0, count: -6