login: panic: pool_do_get: shmpl free list modified: page 0xfffffd8067f55000; item addr 0xfffffd8067f55bd0; offset 0x40=0x68aa3940 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 328439 23542 32767 0x10 0 1 syz-executor *191691 23542 32767 0x10 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8336a723) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff83979f40,1,ffff80003ac56e38) at pool_do_get+0x5df pool_get(ffffffff83979f40,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c4a9a20,ffff80003ac57090,1f,ffff80003ac56fe0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c4a9a20,ffff80003ac57090,ffff80003ac56fe0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003ac57090) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac57090) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3eb67841590, 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 0xfffffd8067f55000; item addr 0xfffffd8067f55bd0; offset 0x40=0x68aa3940 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8336a723) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff83979f40,1,ffff80003ac56e38) at pool_do_get+0x5df pool_get(ffffffff83979f40,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c4a9a20,ffff80003ac57090,1f,ffff80003ac56fe0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c4a9a20,ffff80003ac57090,ffff80003ac56fe0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003ac57090) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac57090) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3eb67841590, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003ac56c60 rbx 0xffffffff837fdddf cpu_info_full_primary+0x2ddf rdx 0xffff800001436380 rcx 0xffff80003c4a9a20 rax 0xffffffff837fcff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xe01ebd9b8ccdf14c r11 0xcc513ca97fbab048 r12 0xffffffff837fdbe0 cpu_info_full_primary+0x2be0 r13 0 r14 0 r15 0x1 rip 0xffffffff81bc8865 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003ac56c50 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=191691 pid=23542 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c4a8560,0xffffffff83970938 process=0xffff80003ac4eb80 user=0xffff80003ac52000, vmspace=0xfffffd806badf210 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 78561 243554 23533 32767 2 0x10 syz-executor 78561 381165 23533 32767 3 0x4000010 biowait syz-executor 61721 66002 81382 32767 2 0x10 syz-executor 62291 511773 52790 32767 2 0x10 syz-executor 62291 169577 52790 32767 3 0x4000090 ttyin syz-executor 23542 328439 76063 32767 7 0x10 syz-executor *23542 191691 76063 32767 7 0x4000010 syz-executor 49917 29405 32001 32767 2 0x10 syz-executor 49917 477765 32001 32767 3 0x4000090 fsleep syz-executor 49917 69062 32001 32767 3 0x4000090 fsleep syz-executor 49917 141938 32001 32767 3 0x4000090 fsleep syz-executor 77025 200946 57011 32767 3 0x90 nanoslp syz-executor 77025 67404 57011 32767 3 0x4000090 netcon syz-executor 77025 166537 57011 32767 3 0x4000090 fsleep syz-executor 29735 207640 42942 32767 3 0x90 nanoslp syz-executor 29735 6589 42942 32767 3 0x4000090 kqsel syz-executor 29735 36913 42942 32767 3 0x4000090 kqsel syz-executor 29735 493733 42942 32767 3 0x4000090 fsleep syz-executor 98290 78482 41990 32767 3 0x400090 nanoslp syz-executor 98290 163076 41990 32767 3 0x4400090 kqsel syz-executor 98290 136724 41990 32767 3 0x4400090 fsleep syz-executor 65316 369451 0 0 3 0x14200 bored sosplice 41990 271360 96683 32767 3 0x90 nanoslp syz-executor 42942 300031 26597 32767 3 0x90 nanoslp syz-executor 23533 289158 97448 32767 3 0x90 nanoslp syz-executor 76063 110715 52656 32767 3 0x90 nanoslp syz-executor 81382 474818 85647 32767 3 0x90 nanoslp syz-executor 57011 189193 56134 32767 3 0x90 nanoslp syz-executor 52790 118327 18212 32767 3 0x90 nanoslp syz-executor 32001 42016 85753 32767 2 0x10 syz-executor 18212 27292 45597 0 3 0x82 wait syz-executor 85753 286138 45597 0 3 0x82 wait syz-executor 96683 215252 45597 0 3 0x82 wait syz-executor 52656 344113 45597 0 3 0x82 wait syz-executor 26597 394495 45597 0 3 0x82 wait syz-executor 97448 174767 45597 0 3 0x82 wait syz-executor 56134 71774 45597 0 3 0x82 wait syz-executor 85647 517570 45597 0 3 0x82 wait syz-executor 45597 91024 86625 0 3 0x82 kqread syz-executor 86625 33016 31274 0 3 0x10008a sigsusp ksh 31274 14585 14189 0 3 0x98 kqread sshd-session 14189 81509 17272 0 3 0x92 kqread sshd-session 79685 157014 1 0 3 0x100083 ttyin getty 17272 363499 1 0 3 0x88 kqread sshd 93764 465738 12106 73 3 0x1100090 kqread syslogd 12106 455836 1 0 3 0x100082 sbwait syslogd 55372 522404 1 0 3 0x100080 kqread resolvd 57776 359296 18793 77 3 0x100092 kqread dhcpleased 50251 230293 18793 77 3 0x100092 kqread dhcpleased 18793 316906 1 0 3 0x80 kqread dhcpleased 44401 136041 0 0 3 0x14200 bored smr 66673 236026 0 0 3 0x14200 pgzero zerothread 27900 419242 0 0 3 0x14200 aiodoned aiodoned 74262 407390 0 0 3 0x14200 syncer update 9806 153977 0 0 3 0x14200 cleaner cleaner 24807 218413 0 0 3 0x14200 reaper reaper 36227 78880 0 0 3 0x14200 pgdaemon pagedaemon 55655 170787 0 0 3 0x14200 bored viomb 47774 215513 0 0 3 0x40014200 acpi0 acpi0 41302 292825 0 0 3 0x40014200 idle1 65538 288871 0 0 3 0x14200 bored softnet7 81182 405993 0 0 3 0x14200 bored softnet6 16794 210438 0 0 3 0x14200 bored softnet5 34932 275650 0 0 3 0x14200 bored softnet4 4152 430798 0 0 3 0x14200 bored softnet3 32160 174362 0 0 3 0x14200 bored softnet2 91427 54582 0 0 3 0x14200 bored softnet1 11891 353201 0 0 3 0x14200 bored softnet0 95498 40181 0 0 3 0x14200 bored systqmp 2547 149260 0 0 3 0x14200 bored systq 49409 496823 0 0 3 0x14200 tmoslp softclockmp 90675 426522 0 0 3 0x40014200 tmoslp softclock 95151 458492 0 0 3 0x40014200 idle0 1 155192 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 (0xffffffff83979f58) #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 78561 (syz-executor) thread 0xffff80003c4a8560 (381165) exclusive rrwlock inode r = 0 (0xfffffd80653ec208) #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 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:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80653ec458) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #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 23542 (syz-executor) thread 0xffff80003c4a9a20 (191691) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839c2350) #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 (0xffffffff83979f58) #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10199 10957K 10968K 166960K 11277 0 pcb 17 12K 12K 166960K 17 0 rtable 205 5K 6K 166960K 327 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 6 0 counters 68 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 8K 166960K 6 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1359 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 10 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 26 97K 117K 166960K 251 0 sigio 0 0K 0K 166960K 1 0 proc 60 131K 163K 166960K 482 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 17 0 in_multi 99 7K 7K 166960K 100 0 ether_multi 1 0K 0K 166960K 1 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 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 260 160K 178K 166960K 3794 0 UVM aobj 5 2K 3K 166960K 6 0 pinsyscall 47 94K 108K 166960K 1293 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 11 0K 2K 166960K 27 0 temp 41 8643K 8707K 166960K 4272 0 kqueue 14 22K 31K 166960K 47 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 120 113 0 110 3 0 3 3 0 8 2 rtentry 176 95 0 1 5 0 5 5 0 8 0 unpcb 144 244 0 224 4 0 4 4 0 8 3 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 48 0 39 2 0 2 2 0 8 1 arp 128 10 0 0 1 0 1 1 0 8 0 ipq 40 1 0 1 1 0 1 1 0 8 1 ipqe 40 2 0 2 1 0 1 1 0 8 1 inpcb 328 150 0 136 2 0 2 2 0 8 0 ip6q 72 1 0 1 1 0 1 1 0 8 1 ip6af 40 2 0 2 1 0 1 1 0 8 1 nd6 144 16 0 0 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 256 437 0 0 28 0 28 28 0 8 0 art_table 40 438 0 0 5 0 5 5 0 8 0 art_node 32 95 0 11 1 0 1 1 0 8 0 semapl 112 8 0 1 1 0 1 1 0 8 0 shmpl 112 3 0 1 1 0 1 1 0 8 0 pool(0xffffffff83979f40:shmpl): page inconsistency: page 0xfffffd8067f55000; 32 on list, 2 missing, 35 items per page dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1691 0 184 95 0 95 95 0 8 0 ffsino 296 1691 0 184 117 0 117 117 0 8 0 nchpl 144 2019 0 339 63 0 63 63 0 8 0 uvmvnodes 80 1772 0 0 37 0 37 37 0 8 0 vnodes 216 1772 0 0 99 0 99 99 0 8 0 namei 1024 6102 0 6101 2 0 2 2 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 7125 0 7124 3 2 1 2 1 8 0 plimitpl 152 53 0 27 2 0 2 2 0 8 0 sigapl 424 540 0 479 8 0 8 8 0 8 1 knotepl 120 106 0 0 4 0 4 4 0 8 0 kqueuepl 224 126 0 113 5 0 5 5 0 8 3 pipepl 344 145 0 118 6 0 6 6 0 8 3 fdescpl 528 517 0 479 3 0 3 3 0 8 0 filepl 160 2359 0 2137 17 0 17 17 0 8 7 lockfpl 104 26 0 24 1 0 1 1 0 8 0 lockfspl 48 13 0 11 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 31 0 7 1 0 1 1 0 8 0 ucredpl 104 205 0 186 1 0 1 1 0 8 0 zombiepl 144 479 0 479 1 0 1 1 0 8 1 processpl 1232 540 0 479 7 1 6 6 0 8 0 procpl 664 733 0 659 7 0 7 7 0 8 0 sockpl 752 508 0 471 17 4 13 17 0 8 7 mcl64k 65536 4 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 118 0 0 15 0 15 15 0 8 0 mcl2k 2048 66 0 0 9 0 9 9 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 1837 0 0 115 0 115 115 0 8 0 bufpl 280 2963 0 116 204 0 204 204 0 8 0 anonpl 32 5430 0 0 44 0 44 44 0 246 0 amapchunkpl 152 12344 0 11755 41 3 38 38 0 158 12 amappl16 200 2098 0 2013 6 1 5 5 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 107 0 97 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 1130 0 1093 2 0 2 2 0 8 0 amappl11 160 45 0 35 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 251 0 251 1 1 0 1 0 8 0 amappl8 136 19 0 18 1 0 1 1 0 8 0 amappl7 128 103 0 93 1 0 1 1 0 8 0 amappl6 120 175 0 171 1 0 1 1 0 8 0 amappl5 112 118 0 112 1 0 1 1 0 8 0 amappl4 104 276 0 261 1 0 1 1 0 8 0 amappl3 96 1971 0 1834 4 0 4 4 0 8 0 amappl2 88 632 0 577 2 0 2 2 0 8 0 amappl1 80 8864 0 8293 14 0 14 14 0 8 0 amappl 88 3123 0 2927 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 5 0 1 1 0 1 1 0 8 0 uaddrrnd 24 517 0 479 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 517 0 479 1 0 1 1 0 8 0 vmmpekpl 168 5928 0 5892 3 0 3 3 0 8 0 vmmpepl 168 39337 0 37122 100 0 100 100 0 357 2 vmsppl 488 516 0 479 7 1 6 6 0 8 0 rwobjpl 80 15572 0 12876 56 0 56 56 0 8 0 pdppl 4096 1042 0 958 112 26 86 96 0 8 2 pvpl 32 12620 0 0 102 0 102 102 0 265 0 pmappl 256 516 0 479 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 392 0 29 11 0 11 11 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(ffffffff8336a723) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff83979f40,1,ffff80003ac56e38) at pool_do_get+0x5df pool_get(ffffffff83979f40,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c4a9a20,ffff80003ac57090,1f,ffff80003ac56fe0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c4a9a20,ffff80003ac57090,ffff80003ac56fe0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003ac57090) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac57090) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3eb67841590, 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: 0x717ca22d24d0, 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: 0x717ca22d24d0, count: -3