panic: ffs_valloc: dup alloc Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 356631 66822 0 0 0 1 syz-executor *168860 43604 0 0x2 0 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8349b778) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806f68ebc8,41c0,fffffd80097fd618,ffff80003b7a6368) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80003b7a63d0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806f6b58a0,ffff80003b7a6530,ffff80003b7a6560,ffff80003b7a6460) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80003c3c8038,ffffff9c,72426d077ef0,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3149 syscall(ffff80003b7a66e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b7a66e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72426d077eb0, count: 7 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: ffs_valloc: dup alloc ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8349b778) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806f68ebc8,41c0,fffffd80097fd618,ffff80003b7a6368) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80003b7a63d0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806f6b58a0,ffff80003b7a6530,ffff80003b7a6560,ffff80003b7a6460) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80003c3c8038,ffffff9c,72426d077ef0,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3149 syscall(ffff80003b7a66e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b7a66e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72426d077eb0, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003b7a60e0 rbx 0xffffffff839b0e07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff80003c3c8038 rax 0xffffffff839afff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x6ef0238c48472b6a r11 0x876ab14b4c1fcbc7 r12 0xffffffff839b0c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff815b6345 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003b7a60d0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=168860 pid=43604 tcnt=1 stat=onproc flags process=2 proc=0 runpri=50, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c3c82d0,0xffff80003c3c8810 process=0xffff80003c4321d8 user=0xffff80003b7a1000, vmspace=0xfffffd806c669020 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 11310 19767 42068 0 2 0 syz-executor 66822 356631 53551 0 7 0 syz-executor *43604 168860 9699 0 7 0x2 syz-executor 61932 334062 82029 0 3 0x80 nanoslp syz-executor 61932 219234 82029 0 3 0x4000080 sbwait syz-executor 61932 322712 82029 0 3 0x4000080 fsleep syz-executor 61932 466685 82029 0 3 0x4000080 fsleep syz-executor 30427 111286 64857 0 2 0xc80 syz-executor 30427 237404 64857 0 3 0x4000080 rest syz-executor 35979 201177 39430 0 2 0xc80 syz-executor 35979 277811 39430 0 3 0x4000080 fsleep syz-executor 35979 412618 39430 0 3 0x4000080 pipewr syz-executor 86703 247647 0 0 3 0x14280 nfsidl nfsio 85037 492469 0 0 3 0x14280 nfsidl nfsio 83208 247454 0 0 3 0x14280 nfsidl nfsio 16435 510282 0 0 3 0x14280 nfsidl nfsio 3978 49290 0 0 3 0x14280 nfsidl nfsio 25141 207301 0 0 3 0x14280 nfsidl nfsio 18125 103079 0 0 3 0x14280 nfsidl nfsio 33256 164922 0 0 3 0x14280 nfsidl nfsio 65429 268758 0 0 3 0x14280 nfsidl nfsio 99982 189651 0 0 3 0x14280 nfsidl nfsio 70304 93629 0 0 3 0x14280 nfsidl nfsio 263 3257 0 0 3 0x14280 nfsidl nfsio 41722 365626 0 0 3 0x14280 nfsidl nfsio 27649 476080 0 0 3 0x14280 nfsidl nfsio 4292 244567 0 0 3 0x14280 nfsidl nfsio 51333 20238 0 0 3 0x14280 nfsidl nfsio 27447 458732 0 0 3 0x14280 nfsidl nfsio 4693 468561 0 0 3 0x14280 nfsidl nfsio 86191 421936 0 0 3 0x14280 nfsidl nfsio 83992 327622 0 0 3 0x14280 nfsidl nfsio 42068 257092 9699 0 3 0x82 nanoslp syz-executor 53551 269388 9699 0 2 0x2 syz-executor 64857 298047 9699 0 2 0xc82 syz-executor 82029 296391 9699 0 3 0x82 nanoslp syz-executor 45924 275528 9699 0 2 0x2 syz-executor 39430 278708 9699 0 2 0xc82 syz-executor 9699 103073 62022 0 3 0x82 wait syz-executor 62022 82730 9164 0 3 0x10008a sigsusp ksh 9164 135244 47794 0 3 0x98 kqread sshd-session 47794 132261 27573 0 3 0x92 kqread sshd-session 95887 378144 1 0 3 0x100083 ttyin getty 27573 408113 1 0 3 0x88 kqread sshd 80070 293528 38112 74 3 0x1100092 bpf pflogd 38112 271760 1 0 3 0x80 sbwait pflogd 92363 137316 62837 73 3 0x1100090 kqread syslogd 62837 160148 1 0 3 0x100082 sbwait syslogd 20686 342498 1 0 3 0x100080 kqread resolvd 95507 333909 37968 77 3 0x100092 kqread dhcpleased 86790 393045 37968 77 3 0x100092 kqread dhcpleased 37968 342633 1 0 3 0x80 kqread dhcpleased 25734 88063 0 0 3 0x14200 bored smr 40927 388063 0 0 2 0x14200 zerothread 9028 402844 0 0 3 0x14200 aiodoned aiodoned 15175 5675 0 0 3 0x14200 syncer update 7070 443500 0 0 3 0x14200 cleaner cleaner 16073 270217 0 0 3 0x14200 reaper reaper 54039 465003 0 0 3 0x14200 pgdaemon pagedaemon 99284 403245 0 0 3 0x14200 bored viomb 61178 464407 0 0 3 0x40014200 acpi0 acpi0 9003 167599 0 0 3 0x40014200 idle1 83504 283474 0 0 3 0x14200 bored softnet1 86408 86524 0 0 3 0x14200 bored softnet0 62161 399883 0 0 3 0x14200 smrbar systqmp 80296 250298 0 0 3 0x14200 bored systq 40514 287255 0 0 3 0x14200 tmoslp softclockmp 87600 176374 0 0 3 0x40014200 tmoslp softclock 34276 69164 0 0 3 0x40014200 idle0 1 161431 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 43604 (syz-executor) thread 0xffff80003c3c8038 (168860) exclusive rrwlock inode r = 0 (0xfffffd806c5c8d78) #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 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+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3149 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f68ec68) #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 vfs_lookup+0x10f sys/kern/vfs_lookup.c:431 #6 namei+0x7c5 sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3134 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839dbe40) #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 62161 (systqmp) thread 0xffff8000ffffecf8 (399883) shared rwlock systqmp r = 0 (0xffffffff83955b78) #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 12096K 12365K 166960K 12327 0 pcb 17 12K 28K 166960K 122 0 rtable 209 8K 8K 166960K 420 0 pf 35 17K 25K 166960K 96 0 ifaddr 38 6K 7K 166960K 57 0 ifgroup 55 2K 2K 166960K 75 0 sysctl 1 1K 9K 166960K 10 0 counters 70 37K 37K 166960K 86 0 ioctlops 0 0K 4K 166960K 1531 0 iov 0 0K 2K 166960K 7 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1292 81K 82K 166960K 1487 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 79 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 50K 89K 166960K 323 0 sigio 0 0K 0K 166960K 2 0 proc 72 115K 164K 166960K 599 0 subproc 63 3K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 16 0 in_multi 77 5K 7K 166960K 118 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 414 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 201 150K 175K 166960K 4624 0 UVM aobj 10 2K 4K 166960K 13 0 pinsyscall 40 80K 104K 166960K 1491 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 14 0K 2K 166960K 35 0 temp 34 9111K 9187K 166960K 9249 0 kqueue 13 20K 28K 166960K 42 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 43 0 40 1 0 1 1 0 8 0 rtentry 176 129 0 39 6 0 6 6 0 8 0 unpcb 144 237 0 218 6 0 6 6 0 8 5 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 74 0 70 1 0 1 1 0 8 0 arp 136 21 0 6 1 0 1 1 0 8 0 inpcb 328 225 0 218 2 0 2 2 0 8 1 nd6 152 29 0 10 1 0 1 1 0 8 0 kcovpl 48 9 0 2 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 4 0 4 1 0 1 1 0 8 1 pppxif 1576 1 0 1 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 3 0 1 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 0 1 0 1 1 0 8 0 pfsrclim 320 3 0 2 1 0 1 1 0 8 0 pfanchor 1288 11 0 0 1 0 1 1 0 8 0 pfstitem 24 33 0 0 1 0 1 1 0 8 0 pfstkey 128 35 0 2 2 0 2 2 0 8 0 pfstate 448 34 0 1 4 0 4 4 0 8 0 pfrule 1360 24 0 19 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 524 0 111 29 0 29 29 0 8 2 art_table 40 525 0 111 5 0 5 5 0 8 0 art_node 32 129 0 39 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 6 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 64 77 0 67 1 0 1 1 0 8 0 shmpl 112 10 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1864 0 402 93 0 93 93 0 8 0 ffsino 296 1866 0 404 114 0 114 114 0 8 0 nchpl 144 2293 0 594 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 2028 0 0 113 0 113 113 0 8 0 namei 1024 7100 0 7099 2 0 2 2 0 8 1 percpumem 16 58 0 8 1 0 1 1 0 8 0 kstatmem 264 39 0 10 3 0 3 3 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7909 0 7909 4 3 1 3 1 8 1 plimitpl 152 49 0 32 1 0 1 1 0 8 0 sigapl 424 654 0 589 8 0 8 8 0 8 0 knotepl 120 531 0 0 17 0 17 17 0 8 0 kqueuepl 224 52 0 43 1 0 1 1 0 8 0 pipepl 344 139 0 111 3 0 3 3 0 8 0 fdescpl 528 618 0 589 3 0 3 3 0 8 0 filepl 160 2668 0 2464 15 0 15 15 0 8 5 lockfpl 104 65 0 63 1 0 1 1 0 8 0 lockfspl 48 24 0 22 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 43 0 26 1 0 1 1 0 8 0 ucredpl 104 288 0 275 1 0 1 1 0 8 0 zombiepl 144 590 0 589 1 0 1 1 0 8 0 processpl 1232 654 0 589 6 0 6 6 0 8 0 procpl 664 958 0 887 8 0 8 8 0 8 0 sockpl 752 577 0 548 17 5 12 17 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 128 0 0 16 0 16 16 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 176 0 0 11 0 11 11 0 8 0 bufpl 280 2802 0 105 193 0 193 193 0 8 0 anonpl 32 5412 0 0 44 0 44 44 0 246 0 amapchunkpl 152 14565 0 14186 32 0 32 32 0 158 11 amappl16 200 2002 0 1977 5 2 3 5 0 8 0 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 479 0 477 1 0 1 1 0 8 0 amappl13 176 120 0 108 1 0 1 1 0 8 0 amappl12 168 874 0 848 2 0 2 2 0 8 0 amappl11 160 107 0 107 1 1 0 1 0 8 0 amappl10 152 66 0 52 1 0 1 1 0 8 0 amappl9 144 263 0 263 1 1 0 1 0 8 0 amappl8 136 109 0 107 1 0 1 1 0 8 0 amappl7 128 148 0 135 1 0 1 1 0 8 0 amappl6 120 173 0 171 1 0 1 1 0 8 0 amappl5 112 94 0 84 1 0 1 1 0 8 0 amappl4 104 289 0 268 1 0 1 1 0 8 0 amappl3 96 2611 0 2522 4 0 4 4 0 8 0 amappl2 88 528 0 466 2 0 2 2 0 8 0 amappl1 80 10081 0 9487 15 0 15 15 0 8 2 amappl 88 3860 0 3729 5 0 5 5 0 92 0 uvmvnodes 80 104 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 dma512 512 1 0 1 1 0 1 1 0 8 1 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 1 1 1 0 8 1 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 12 0 3 1 0 1 1 0 8 0 uaddrrnd 24 618 0 589 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 618 0 589 1 0 1 1 0 8 0 vmmpekpl 168 6707 0 6657 3 0 3 3 0 8 0 vmmpepl 168 46530 0 44758 88 0 88 88 0 357 1 vmsppl 488 617 0 589 5 0 5 5 0 8 1 rwobjpl 80 15697 0 14694 25 1 24 24 0 8 1 pdppl 4096 1243 0 1178 99 26 73 83 0 8 8 pvpl 32 12172 0 0 100 1 99 99 0 265 0 pmappl 256 617 0 589 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 275 0 29 8 0 8 8 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(ffffffff8349b778) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806f68ebc8,41c0,fffffd80097fd618,ffff80003b7a6368) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80003b7a63d0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806f6b58a0,ffff80003b7a6530,ffff80003b7a6560,ffff80003b7a6460) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80003c3c8038,ffffff9c,72426d077ef0,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3149 syscall(ffff80003b7a66e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b7a66e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72426d077eb0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff80002999dff0) 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(ffffffff839db640) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff839db640) at __mp_lock+0x199 sys/kern/kern_lock.c:173 syscall(ffff80003c453200) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80003c453200) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72bda11bd790, count: 9 ddb{1}> trace x86_ipi_db(ffff80002999dff0) 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(ffffffff839db640) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff839db640) at __mp_lock+0x199 sys/kern/kern_lock.c:173 syscall(ffff80003c453200) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80003c453200) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72bda11bd790, count: -6