panic: ffs_valloc: dup alloc Stopped at db_enter+0x17: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND *101201 72882 0 0 0x4000000 0K syz-executor 32945 88670 0 0x2 0x1 1 syz-executor db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff847f1980) at panic+0x296 sys/kern/subr_prf.c:198 ffs_inode_alloc(ffff800001b9d3c8,8041,ffff800000118680,ffff800039ed2b90) at ffs_inode_alloc+0xd4b ufs_makeinode(8041,ffff800001cbc548,ffff800039ed3180,ffff800039ed31b0) at ufs_makeinode+0x1fc sys/ufs/ufs/ufs_vnops.c:1759 ufs_create(ffff800039ed2ce0) at ufs_create+0xcf sys/ufs/ufs/ufs_vnops.c:147 VOP_CREATE(ffff800001cbc548,ffff800039ed3180,ffff800039ed31b0,ffff800039ed2e00) at VOP_CREATE+0x1ed sys/kern/vfs_vops.c:103 vn_open(ffff800039ed3150,201,41) at vn_open+0x720 sys/kern/vfs_vnops.c:118 doopenat(ffff80003bae0fb0,ffffff9c,200000000440,200,41,0,ffff800039ed34c0) at doopenat+0x51b sys/kern/vfs_syscalls.c:1163 sys_open(ffff80003bae0fb0,ffff800039ed34c0,ffff800039ed3420) at sys_open+0x86 sys/kern/vfs_syscalls.c:1065 syscall(ffff800039ed34c0) at syscall+0x118e mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800039ed34c0) at syscall+0x118e sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1edcbd757b0, 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: ffs_valloc: dup alloc ddb{0}> show kasan kasan: no report recorded this boot ddb{0}> trace db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff847f1980) at panic+0x296 sys/kern/subr_prf.c:198 ffs_inode_alloc(ffff800001b9d3c8,8041,ffff800000118680,ffff800039ed2b90) at ffs_inode_alloc+0xd4b ufs_makeinode(8041,ffff800001cbc548,ffff800039ed3180,ffff800039ed31b0) at ufs_makeinode+0x1fc sys/ufs/ufs/ufs_vnops.c:1759 ufs_create(ffff800039ed2ce0) at ufs_create+0xcf sys/ufs/ufs/ufs_vnops.c:147 VOP_CREATE(ffff800001cbc548,ffff800039ed3180,ffff800039ed31b0,ffff800039ed2e00) at VOP_CREATE+0x1ed sys/kern/vfs_vops.c:103 vn_open(ffff800039ed3150,201,41) at vn_open+0x720 sys/kern/vfs_vnops.c:118 doopenat(ffff80003bae0fb0,ffffff9c,200000000440,200,41,0,ffff800039ed34c0) at doopenat+0x51b sys/kern/vfs_syscalls.c:1163 sys_open(ffff80003bae0fb0,ffff800039ed34c0,ffff800039ed3420) at sys_open+0x86 sys/kern/vfs_syscalls.c:1065 syscall(ffff800039ed34c0) at syscall+0x118e mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800039ed34c0) at syscall+0x118e sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1edcbd757b0, count: -11 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800039ed27d0 rbx 0xdfff908000000004 rdx 0 rcx 0xffffffff854efff0 cpu_info_full_primary+0x1ff0 rax 0xffff80000014cf80 r8 0xffffffff r9 0 r10 0xffff800039ed2550 r11 0xffffffff81a373d0 x86_bus_space_io_read_1 r12 0xffffffff854f0e0f cpu_info_full_primary+0x2e0f r13 0xffffffff854f0c10 cpu_info_full_primary+0x2c10 r14 0x1ffff000073da504 r15 0x1 rip 0xffffffff83ac31e7 db_enter+0x17 cs 0x8 rflags 0x246 rsp 0xffff800039ed27d0 ss 0x10 db_enter+0x17: popq %rbp ddb{0}> show proc PROC (syz-executor) tid=101201 pid=72882 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=0xffff80003bae0d18,0xffffffff8561fc60 process=0xffff800029a7d850 user=0xffff800039ec8000, vmspace=0xffff800001bee5e0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 72882 459128 3185 0 2 0 0 syz-executor *72882 101201 3185 0 7 0 0x4000000 syz-executor 84859 148871 37262 0 2 0 0 syz-executor 84859 159168 37262 0 2 0 0x4000000 syz-executor 41332 383541 1886 0 2 0 0 syz-executor 41332 293513 1886 0 3 0 0x4000080 kqread syz-executor 87869 374091 5830 0 2 0x2 0 sh 55461 99969 44653 0 2 0 0 syz-executor 49385 384059 30358 0 2 0 0 syz-executor 49385 493715 30358 0 2 0 0x4000000 syz-executor 49385 317166 30358 0 3 0 0x4000080 fsleep syz-executor 5830 445197 49180 0 3 0x2 0x80 wait syz-executor 37262 5612 49180 0 3 0x2 0x80 nanoslp syz-executor 44653 420480 49180 0 2 0x2 0 syz-executor 30358 254862 49180 0 3 0x2 0x80 nanoslp syz-executor 88670 32945 49180 0 7 0x2 0x1 syz-executor 3185 435440 49180 0 2 0x2 0 syz-executor 65284 277546 49180 0 3 0x2 0x80 nanoslp syz-executor 1886 403025 49180 0 2 0x2 0 syz-executor 49180 239976 82999 0 2 0x2 0x80 syz-executor 82999 504971 63307 0 3 0x100002 0x88 sigsusp ksh 63307 37360 87011 0 3 0x10 0x88 kqread sshd-session 87011 496481 92521 0 3 0x12 0x80 kqread sshd-session 52528 331505 1 0 3 0x100003 0x80 ttyin getty 92521 34174 1 0 3 0 0x88 kqread sshd 38996 69280 27152 74 3 0x1100012 0x80 bpf pflogd 27152 157995 1 0 3 0 0x80 sbwait pflogd 51760 205123 43767 73 3 0x1100010 0x80 kqread syslogd 43767 414068 1 0 3 0x100002 0x80 sbwait syslogd-parent 44731 313530 1 0 3 0x100000 0x80 kqread resolvd 5216 321303 18794 77 3 0x100012 0x80 kqread dhcpleased 63501 20812 18794 77 3 0x100012 0x80 kqread dhcpleased 18794 267147 1 0 3 0 0x80 kqread dhcpleased 41940 166170 0 0 3 0x14000 0x200 bored smr 24703 510219 0 0 2 0x14000 0x200 zerothread 16749 420391 0 0 3 0x14000 0x200 aiodoned aiodoned 54652 261531 0 0 3 0x14000 0x200 syncer update 45949 131925 0 0 3 0x14000 0x200 cleaner cleaner 90952 406765 0 0 3 0x14000 0x200 reaper reaper 2875 401738 0 0 3 0x14000 0x200 pgdaemon pagedaemon 93488 83395 0 0 3 0x14000 0x200 bored viomb 25503 488302 0 0 3 0x14000 0x40000200 acpi0 acpi0 57132 451620 0 0 3 0x14000 0x40000200 idle1 98143 159860 0 0 3 0x14000 0x200 bored softnet1 81819 520080 0 0 3 0x14000 0x200 bored softnet0 93401 318750 0 0 3 0x14000 0x200 smrbar systqmp 87062 463080 0 0 3 0x14000 0x200 bored systq 8744 475067 0 0 3 0x14000 0x200 tmoslp softclockmp 42516 63482 0 0 3 0x14000 0x40000200 tmoslp softclock 57786 419294 0 0 3 0x14000 0x40000200 idle0 1 187408 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{0}> show all locks Process 72882 (syz-executor) thread 0xffff80003bae0fb0 (101201) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff855aa2c0) #0 witness_lock+0x534 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x534 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 mi_switch+0x73e sys/kern/sched_bsd.c:443 #3 sleep_finish+0x3dc sys/kern/kern_synch.c:369 #4 biowait+0xe6 sys/kern/vfs_bio.c:1110 #5 ffs_vget+0x508 sys/ufs/ffs/ffs_vfsops.c:1249 #6 ffs_inode_alloc+0x579 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0x1fc sys/ufs/ufs/ufs_vnops.c:1759 #8 ufs_create+0xcf sys/ufs/ufs/ufs_vnops.c:147 #9 VOP_CREATE+0x1ed sys/kern/vfs_vops.c:103 #10 vn_open+0x720 sys/kern/vfs_vnops.c:118 #11 doopenat+0x51b sys/kern/vfs_syscalls.c:1163 #12 sys_open+0x86 sys/kern/vfs_syscalls.c:1065 #13 syscall+0x118e mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0x118e sys/arch/amd64/amd64/trap.c:791 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xffff800001b9d7e0) #0 witness_lock+0x534 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x534 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x4e4 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xf5 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0x186 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0xdc sys/ufs/ufs/ufs_ihash.c:152 #5 ffs_vget+0x2fc sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x579 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0x1fc sys/ufs/ufs/ufs_vnops.c:1759 #8 ufs_create+0xcf sys/ufs/ufs/ufs_vnops.c:147 #9 VOP_CREATE+0x1ed sys/kern/vfs_vops.c:103 #10 vn_open+0x720 sys/kern/vfs_vnops.c:118 #11 doopenat+0x51b sys/kern/vfs_syscalls.c:1163 #12 sys_open+0x86 sys/kern/vfs_syscalls.c:1065 #13 syscall+0x118e mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0x118e sys/arch/amd64/amd64/trap.c:791 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xffff800001b9d468) #0 witness_lock+0x534 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x534 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x4e4 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xf5 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0x186 sys/kern/vfs_vops.c:527 #4 vn_lock+0xba sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x1da sys/kern/vfs_lookup.c:431 #6 namei+0xcba sys/kern/vfs_lookup.c:250 #7 vn_open+0x33e sys/kern/vfs_vnops.c:109 #8 doopenat+0x51b sys/kern/vfs_syscalls.c:1163 #9 sys_open+0x86 sys/kern/vfs_syscalls.c:1065 #10 syscall+0x118e mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0x118e sys/arch/amd64/amd64/trap.c:791 #11 Xsyscall+0x128 Process 93401 (systqmp) thread 0xffff800045ffe298 (318750) shared rwlock systqmp r = 0 (0xffffffff852225f8) #0 witness_lock+0x534 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x534 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x1da sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11060 12246K 12398K 166960K 12231 0 pcb 21 28K 30K 166960K 51 0 rtable 241 16K 30K 166960K 525 0 pf 35 22K 28K 166960K 66 0 ifaddr 43 12K 14K 166960K 73 0 ifgroup 55 2K 2K 166960K 83 0 sysctl 3 1K 13K 166960K 7 0 counters 70 42K 44K 166960K 86 0 ioctlops 7 9K 195K 166960K 1675 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1324 85K 86K 166960K 1469 0 UFS quota 1 36K 36K 166960K 1 0 UFS mount 5 44K 44K 166960K 5 0 shm 3 6K 6K 166960K 4 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 405K 166960K 12472 0 file desc 21 67K 113K 166960K 297 0 sigio 0 0K 0K 166960K 1 0 proc 100 130K 193K 166960K 727 0 subproc 81 10K 12K 166960K 135 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 20K 20K 166960K 1 0 ip_moptions 0 0K 0K 166960K 4 0 in_multi 99 7K 8K 166960K 165 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 7 0 ISOFS mount 1 36K 36K 166960K 1 0 MSDOSFS mount 1 20K 20K 166960K 1 0 ttys 43 303K 303K 166960K 43 0 exec 20 5K 18K 166960K 467 0 fusefs mount 1 36K 36K 166960K 1 0 tdb 3 1K 1K 166960K 3 0 VM swap 14 124K 124K 166960K 15 0 UVM amap 460 284K 361K 166960K 4107 0 UVM aobj 5 4K 4K 166960K 6 0 pinsyscall 116 210K 391K 166960K 1591 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 3 0 NDP 21 1K 2K 166960K 48 0 temp 557 9319K 9472K 166960K 4931 0 kqueue 17 53K 84K 166960K 33 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 45 0 42 1 0 1 1 0 8 0 rtentry 176 179 0 79 6 0 6 6 0 8 0 unpcb 144 486 0 467 6 0 6 6 0 8 5 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 736 13 0 9 1 0 1 1 0 8 0 arp 136 31 0 15 1 0 1 1 0 8 0 inpcb 328 248 0 239 7 0 7 7 0 8 6 nd6 152 42 0 21 1 0 1 1 0 8 0 kcovpl 48 15 0 7 1 0 1 1 0 8 0 ppxss 1192 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 33 0 0 1 0 1 1 0 8 0 pfstkey 128 33 0 0 2 0 2 2 0 8 0 pfstate 448 33 0 0 4 0 4 4 0 8 0 pfrule 1360 25 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 726 0 315 29 0 29 29 0 8 1 art_table 40 727 0 315 5 0 5 5 0 8 0 art_node 32 179 0 79 1 0 1 1 0 8 0 semapl 72 9 0 1 1 0 1 1 0 8 0 shmpl 120 3 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1684 0 197 93 0 93 93 0 8 0 ffsino 296 1684 0 197 115 0 115 115 0 8 0 nchpl 144 1985 0 261 64 0 64 64 0 8 0 vnodes 216 1862 0 0 104 0 104 104 0 8 0 namei 1024 8157 0 8156 2 1 1 2 0 8 0 percpumem 16 59 0 9 1 0 1 1 0 8 0 kstatmem 264 43 0 18 2 0 2 2 0 8 0 scxspl 216 7592 0 7592 3 2 1 2 1 8 1 plimitpl 152 39 0 22 1 0 1 1 0 8 0 sigapl 424 587 0 540 7 0 7 7 0 8 1 knotepl 120 60 0 0 2 0 2 2 0 8 0 kqueuepl 224 78 0 68 3 0 3 3 0 8 2 pipepl 344 163 0 136 3 0 3 3 0 8 0 fdescpl 528 571 0 540 3 0 3 3 0 8 0 filepl 160 2803 0 2584 20 0 20 20 0 8 7 lockfpl 104 32 0 30 1 0 1 1 0 8 0 lockfspl 48 17 0 15 1 0 1 1 0 8 0 sessionpl 144 163 0 154 1 0 1 1 0 8 0 pgrppl 48 178 0 161 1 0 1 1 0 8 0 ucredpl 104 137 0 124 1 0 1 1 0 8 0 zombiepl 144 541 0 540 1 0 1 1 0 8 0 processpl 1240 587 0 540 5 0 5 5 0 8 1 procpl 664 721 0 669 6 0 6 6 0 8 0 sosppl 176 1 0 1 1 0 1 1 0 8 1 sockpl 752 780 0 749 24 4 20 24 0 8 16 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 105 0 0 14 0 14 14 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mextrefs 64 18 0 0 1 0 1 1 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 209 0 0 14 0 14 14 0 8 0 bufpl 272 2708 0 92 175 0 175 175 0 8 0 anonpl 32 3839 0 0 31 0 31 31 0 222 0 amapchunkpl 152 11549 0 11148 20 0 20 20 0 158 1 amappl16 200 2123 0 2104 5 3 2 5 0 8 0 amappl15 192 18 0 17 1 0 1 1 0 8 0 amappl14 184 487 0 486 1 0 1 1 0 8 0 amappl13 176 140 0 128 1 0 1 1 0 8 0 amappl12 168 843 0 815 2 0 2 2 0 8 0 amappl11 160 17 0 16 1 0 1 1 0 8 0 amappl10 152 77 0 65 1 0 1 1 0 8 0 amappl9 144 285 0 285 1 1 0 1 0 8 0 amappl8 136 115 0 113 1 0 1 1 0 8 0 amappl7 128 157 0 145 1 0 1 1 0 8 0 amappl6 120 152 0 150 1 0 1 1 0 8 0 amappl5 112 171 0 160 1 0 1 1 0 8 0 amappl4 104 312 0 296 1 0 1 1 0 8 0 amappl3 96 2213 0 2116 3 0 3 3 0 8 0 amappl2 88 464 0 406 2 0 2 2 0 8 0 amappl1 80 11337 0 10746 15 0 15 15 0 8 1 amappl 88 3306 0 3171 4 0 4 4 0 92 0 uvmvnodes 80 108 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 5 0 1 1 0 1 1 0 8 0 uaddrrnd 24 571 0 540 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 571 0 540 1 0 1 1 0 8 0 vmmpekpl 168 6442 0 6405 3 0 3 3 0 8 0 vmmpepl 168 46439 0 44626 87 0 87 87 0 357 6 vmsppl 488 570 0 540 6 1 5 5 0 8 0 rwobjpl 80 16643 0 15662 24 0 24 24 0 8 1 pdppl 4096 1150 0 1080 102 26 76 88 0 8 6 pvpl 32 9385 0 0 78 2 76 77 0 265 0 pmappl 256 570 0 540 4 1 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 120 454 0 33 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff847f1980) at panic+0x296 sys/kern/subr_prf.c:198 ffs_inode_alloc(ffff800001b9d3c8,8041,ffff800000118680,ffff800039ed2b90) at ffs_inode_alloc+0xd4b ufs_makeinode(8041,ffff800001cbc548,ffff800039ed3180,ffff800039ed31b0) at ufs_makeinode+0x1fc sys/ufs/ufs/ufs_vnops.c:1759 ufs_create(ffff800039ed2ce0) at ufs_create+0xcf sys/ufs/ufs/ufs_vnops.c:147 VOP_CREATE(ffff800001cbc548,ffff800039ed3180,ffff800039ed31b0,ffff800039ed2e00) at VOP_CREATE+0x1ed sys/kern/vfs_vops.c:103 vn_open(ffff800039ed3150,201,41) at vn_open+0x720 sys/kern/vfs_vnops.c:118 doopenat(ffff80003bae0fb0,ffffff9c,200000000440,200,41,0,ffff800039ed34c0) at doopenat+0x51b sys/kern/vfs_syscalls.c:1163 sys_open(ffff80003bae0fb0,ffff800039ed34c0,ffff800039ed3420) at sys_open+0x86 sys/kern/vfs_syscalls.c:1065 syscall(ffff800039ed34c0) at syscall+0x118e mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800039ed34c0) at syscall+0x118e sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1edcbd757b0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1f: addq $0x8,%rsp x86_ipi_db(ffff800028f93ff0) at x86_ipi_db+0x1f sys/arch/amd64/amd64/db_interface.c:412 x86_ipi_handler() at x86_ipi_handler+0xfd sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff855a9ac0) at __mp_lock+0x272 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff855a9ac0) at __mp_lock+0x272 sys/kern/kern_lock.c:173 ktrgenio(ffff80003bb1efb8,f8,1,ffff800001ba31e0,4) at ktrgenio+0x315 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrgenio(ffff80003bb1efb8,f8,1,ffff800001ba31e0,4) at ktrgenio+0x315 sys/kern/kern_ktrace.c:264 dofilewritev(ffff80003bb1efb8,f8,ffff800038ec7860,0,ffff800038ec7a20) at dofilewritev+0x646 sys/kern/sys_generic.c:402 sys_write(ffff80003bb1efb8,ffff800038ec7ab0,ffff800038ec7a20) at sys_write+0x157 sys/kern/sys_generic.c:300 syscall(ffff800038ec7ab0) at syscall+0x118e mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038ec7ab0) at syscall+0x118e sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d2b0144c4a0, count: 6 ddb{1}> trace x86_ipi_db(ffff800028f93ff0) at x86_ipi_db+0x1f sys/arch/amd64/amd64/db_interface.c:412 x86_ipi_handler() at x86_ipi_handler+0xfd sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff855a9ac0) at __mp_lock+0x272 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff855a9ac0) at __mp_lock+0x272 sys/kern/kern_lock.c:173 ktrgenio(ffff80003bb1efb8,f8,1,ffff800001ba31e0,4) at ktrgenio+0x315 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrgenio(ffff80003bb1efb8,f8,1,ffff800001ba31e0,4) at ktrgenio+0x315 sys/kern/kern_ktrace.c:264 dofilewritev(ffff80003bb1efb8,f8,ffff800038ec7860,0,ffff800038ec7a20) at dofilewritev+0x646 sys/kern/sys_generic.c:402 sys_write(ffff80003bb1efb8,ffff800038ec7ab0,ffff800038ec7a20) at sys_write+0x157 sys/kern/sys_generic.c:300 syscall(ffff800038ec7ab0) at syscall+0x118e mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038ec7ab0) at syscall+0x118e sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d2b0144c4a0, count: -9