panic: pool_do_get: shmpl free list modified: page 0xfffffd806b58d000; item addr 0xfffffd806b58d700; offset 0x40=0x68a4eedd Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 242137 54953 32767 0x10 0 1 syz-executor *111019 54953 32767 0x10 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833633f8) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff83933b70,1,ffff80003a4390d8) at pool_do_get+0x5df pool_get(ffffffff83933b70,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c459250,ffff80003a439330,1a3,ffff80003a439280) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c459250,ffff80003a439330,ffff80003a439280) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003a439330) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a439330) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x873a663a170, 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: pool_do_get: shmpl free list modified: page 0xfffffd806b58d000; item addr 0xfffffd806b58d700; offset 0x40=0x68a4eedd ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833633f8) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff83933b70,1,ffff80003a4390d8) at pool_do_get+0x5df pool_get(ffffffff83933b70,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c459250,ffff80003a439330,1a3,ffff80003a439280) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c459250,ffff80003a439330,ffff80003a439280) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003a439330) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a439330) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x873a663a170, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003a438f00 rbx 0xffffffff83856ddf cpu_info_full_primary+0x2ddf rdx 0 rcx 0xffff80003c459250 rax 0xffffffff83855ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8e1faff97ecb4898 r11 0xfca4b99690563c29 r12 0xffffffff83856be0 cpu_info_full_primary+0x2be0 r13 0 r14 0 r15 0x1 rip 0xffffffff824fe745 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003a438ef0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=111019 pid=54953 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=50, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c458558,0xffffffff8391f8d0 process=0xffff80003c461d10 user=0xffff80003a434000, vmspace=0xfffffd806bb5dba0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54953 242137 96622 32767 7 0x10 syz-executor *54953 111019 96622 32767 7 0x4000010 syz-executor 70911 478605 68405 32767 3 0x90 nanoslp syz-executor 70911 180112 68405 32767 3 0x4000090 ttyin syz-executor 70911 456293 68405 32767 3 0x4000090 fsleep syz-executor 16971 160507 34954 32767 3 0x90 nanoslp syz-executor 16971 20869 34954 32767 3 0x4000090 ttyin syz-executor 16971 298997 34954 32767 3 0x4000090 fsleep syz-executor 16971 46611 34954 32767 3 0x4000090 fsleep syz-executor 3448 322755 59846 32767 3 0x90 nanoslp syz-executor 3448 46924 59846 32767 3 0x4000090 kqsel syz-executor 3448 457798 59846 32767 3 0x4000090 fsleep syz-executor 14066 302222 0 0 3 0x14200 bored sosplice 68405 141424 78922 32767 3 0x90 nanoslp syz-executor 34954 15314 31724 32767 3 0x90 nanoslp syz-executor 67600 197025 54896 32767 3 0x90 wait syz-executor 7065 92 63325 32767 3 0x90 nanoslp syz-executor 96622 188786 54573 32767 3 0x90 nanoslp syz-executor 69860 9400 55739 32767 3 0x90 wait syz-executor 85828 150125 17716 32767 3 0x10 biowait syz-executor 59846 166751 25861 32767 3 0x90 nanoslp syz-executor 31724 422927 61712 0 3 0x82 wait syz-executor 78922 482736 61712 0 3 0x82 wait syz-executor 63325 244378 61712 0 3 0x82 wait syz-executor 54896 140987 61712 0 3 0x82 wait syz-executor 54573 99370 61712 0 3 0x82 wait syz-executor 55739 195681 61712 0 3 0x82 wait syz-executor 17716 82239 61712 0 3 0x82 wait syz-executor 25861 382673 61712 0 3 0x82 wait syz-executor 61712 166098 54852 0 3 0x82 kqread syz-executor 54852 90579 79686 0 3 0x10008a sigsusp ksh 79686 30072 19534 0 3 0x98 kqread sshd-session 19534 453092 18354 0 3 0x92 kqread sshd-session 81907 427441 1 0 3 0x100083 ttyin getty 18354 301095 1 0 3 0x88 kqread sshd 48075 287202 96286 73 3 0x1100090 kqread syslogd 96286 395425 1 0 3 0x100082 sbwait syslogd 55996 312518 1 0 3 0x100080 kqread resolvd 86 343730 28801 77 3 0x100092 kqread dhcpleased 609 276589 28801 77 3 0x100092 kqread dhcpleased 28801 402263 1 0 3 0x80 kqread dhcpleased 82821 36679 0 0 3 0x14200 bored smr 24635 109340 0 0 3 0x14200 pgzero zerothread 73798 390104 0 0 3 0x14200 aiodoned aiodoned 55893 48568 0 0 3 0x14200 syncer update 49801 89554 0 0 3 0x14200 cleaner cleaner 47112 385216 0 0 3 0x14200 reaper reaper 54886 78710 0 0 3 0x14200 pgdaemon pagedaemon 65596 39102 0 0 3 0x14200 bored viomb 80196 236 0 0 3 0x40014200 acpi0 acpi0 44144 51712 0 0 3 0x40014200 idle1 90266 47659 0 0 3 0x14200 bored softnet7 54310 105301 0 0 3 0x14200 bored softnet6 21571 276870 0 0 3 0x14200 bored softnet5 51905 392867 0 0 3 0x14200 bored softnet4 18629 505794 0 0 3 0x14200 bored softnet3 77937 461158 0 0 3 0x14200 bored softnet2 8856 135555 0 0 3 0x14200 bored softnet1 51061 315418 0 0 3 0x14200 bored softnet0 85000 435480 0 0 3 0x14200 smrbar systqmp 43704 489545 0 0 3 0x14200 bored systq 46479 204985 0 0 3 0x14200 tmoslp softclockmp 93563 193937 0 0 3 0x40014200 tmoslp softclock 89971 295770 0 0 3 0x40014200 idle0 1 490276 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex shmpl r = 0 (0xffffffff83933b88) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pool_get+0x124 sys/kern/subr_pool.c:581 #4 shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 #5 sys_shmget+0x195 sys/kern/sysv_shm.c:482 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 54953 (syz-executor) thread 0xffff80003c459250 (111019) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8397eb10) #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:748 #2 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff83933b88) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pool_get+0x124 sys/kern/subr_pool.c:581 #4 shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 #5 sys_shmget+0x195 sys/kern/sysv_shm.c:482 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 85828 (syz-executor) thread 0xffff8000ffff2540 (150125) exclusive rrwlock inode r = 0 (0xfffffd806b8917c8) #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 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+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ca28440) #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 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 85000 (systqmp) thread 0xffff8000ffffe7c8 (435480) shared rwlock systqmp r = 0 (0xffffffff837d9ad8) #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 10221 10960K 10968K 166960K 11301 0 pcb 17 12K 12K 166960K 17 0 rtable 213 6K 6K 166960K 267 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 33 0 iov 0 0K 24K 166960K 12 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1334 84K 84K 166960K 1362 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 10 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 15 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 25 93K 117K 166960K 347 0 sigio 0 0K 0K 166960K 5 0 proc 58 99K 147K 166960K 503 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 1 0K 0K 166960K 30 0 in_multi 99 7K 7K 166960K 115 0 ether_multi 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 356 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 267 153K 168K 166960K 4569 0 UVM aobj 13 2K 4K 166960K 16 0 pinsyscall 46 92K 106K 166960K 1339 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 13 0 NDP 11 0K 2K 166960K 27 0 temp 48 8644K 8708K 166960K 4505 0 kqueue 13 20K 35K 166960K 63 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 50 0 47 1 0 1 1 0 8 0 rtentry 176 100 0 2 5 0 5 5 0 8 0 unpcb 144 241 0 223 4 0 4 4 0 8 3 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 116 0 110 4 0 4 4 0 8 3 arp 128 11 0 0 1 0 1 1 0 8 0 ipq 40 3 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 0 1 0 1 1 0 8 0 inpcb 328 271 0 256 5 0 5 5 0 8 3 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 144 20 0 1 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 443 0 2 28 0 28 28 0 8 0 art_table 40 444 0 2 5 0 5 5 0 8 0 art_node 32 100 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 5 1 0 1 1 0 8 1 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 12 0 2 1 0 1 1 0 8 0 shmpl 112 13 0 3 1 0 1 1 0 8 0 pool(0xffffffff83933b70:shmpl): page inconsistency: page 0xfffffd806b58d000; 24 on list, 10 missing, 35 items per page dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 1839 0 333 95 0 95 95 0 8 0 ffsino 296 1839 0 333 117 0 117 117 0 8 0 nchpl 144 2311 0 634 63 0 63 63 0 8 0 uvmvnodes 80 1920 0 0 40 0 40 40 0 8 0 vnodes 216 1920 0 0 107 0 107 107 0 8 0 namei 1024 7488 0 7488 1 0 1 1 0 8 1 percpumem 16 49 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 8254 0 8253 4 1 3 3 1 8 2 plimitpl 152 106 0 77 2 0 2 2 0 8 0 sigapl 424 622 0 562 8 0 8 8 0 8 0 knotepl 120 356 0 0 11 0 11 11 0 8 0 kqueuepl 224 125 0 115 3 0 3 3 0 8 1 pipepl 344 120 0 93 3 0 3 3 0 8 0 fdescpl 528 599 0 562 3 0 3 3 0 8 0 filepl 160 2716 0 2491 13 0 13 13 0 8 2 lockfpl 104 60 0 58 1 0 1 1 0 8 0 lockfspl 48 21 0 19 1 0 1 1 0 8 0 sessionpl 144 21 0 5 1 0 1 1 0 8 0 pgrppl 48 33 0 9 1 0 1 1 0 8 0 ucredpl 104 472 0 453 1 0 1 1 0 8 0 zombiepl 144 565 0 562 1 0 1 1 0 8 0 processpl 1232 622 0 562 7 1 6 6 0 8 0 procpl 664 981 0 913 7 0 7 7 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 752 570 0 534 11 0 11 11 0 8 7 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 127 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 276 0 0 18 0 18 18 0 8 0 bufpl 280 3340 0 112 231 0 231 231 0 8 0 anonpl 32 7678 0 0 62 0 62 62 0 246 0 amapchunkpl 152 14462 0 13849 38 3 35 35 0 158 6 amappl16 200 1463 0 1439 14 3 11 14 0 8 8 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 99 0 89 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1190 0 1153 2 0 2 2 0 8 0 amappl11 160 67 0 57 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 259 0 258 1 0 1 1 0 8 0 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 89 0 79 1 0 1 1 0 8 0 amappl6 120 235 0 232 1 0 1 1 0 8 0 amappl5 112 115 0 108 1 0 1 1 0 8 0 amappl4 104 253 0 236 1 0 1 1 0 8 0 amappl3 96 2541 0 2400 4 0 4 4 0 8 0 amappl2 88 597 0 541 2 0 2 2 0 8 0 amappl1 80 8577 0 7998 13 0 13 13 0 8 0 amappl 88 3929 0 3727 5 0 5 5 0 92 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 15 0 3 1 0 1 1 0 8 0 uaddrrnd 24 599 0 562 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 599 0 562 1 0 1 1 0 8 0 vmmpekpl 168 6166 0 6129 2 0 2 2 0 8 0 vmmpepl 168 42787 0 40641 105 0 105 105 0 357 9 vmsppl 488 598 0 562 7 1 6 6 0 8 0 rwobjpl 80 15300 0 12494 59 0 59 59 0 8 0 pdppl 4096 1205 0 1124 103 20 83 93 0 8 2 pvpl 32 15537 0 0 126 0 126 126 0 265 0 pmappl 256 598 0 562 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 284 0 24 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(ffffffff833633f8) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff83933b70,1,ffff80003a4390d8) at pool_do_get+0x5df pool_get(ffffffff83933b70,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c459250,ffff80003a439330,1a3,ffff80003a439280) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c459250,ffff80003a439330,ffff80003a439280) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003a439330) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a439330) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x873a663a170, count: -8 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: 0x73f465abf5d0, 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: 0x73f465abf5d0, count: -3