panic: mutex 0xfffffd806c15f9f0 not held in mtx_leave Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 522856 60400 32767 0x10 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd806c15f9f0) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd806c15f908,fffffd806c15f9f0,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd806c15f8d8,eecbf89d000,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_map_protect(fffffd806c15f8d8,eecbf69e000,eecbf89d000,1,0,0,42a6187d16ee729d) at uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3059 sys_mprotect(ffff80002a04f6f8,ffff80002a0b1fb0,ffff80002a0b1f00) at sys_mprotect+0x34c sys/uvm/uvm_mmap.c:585 syscall(ffff80002a0b1fb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0b1fb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7e88893cd0, count: 6 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: mutex 0xfffffd806c15f9f0 not held in mtx_leave ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd806c15f9f0) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd806c15f908,fffffd806c15f9f0,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd806c15f8d8,eecbf89d000,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_map_protect(fffffd806c15f8d8,eecbf69e000,eecbf89d000,1,0,0,42a6187d16ee729d) at uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3059 sys_mprotect(ffff80002a04f6f8,ffff80002a0b1fb0,ffff80002a0b1f00) at sys_mprotect+0x34c sys/uvm/uvm_mmap.c:585 syscall(ffff80002a0b1fb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0b1fb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7e88893cd0, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a0b1bb0 rbx 0xffffffff834aedbf cpu_info_full_primary+0x2dbf rdx 0 rcx 0xffff80002a04f6f8 rax 0xffffffff834adff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc8b97c0c6d71e27a r11 0x6760bb86d06818ee r12 0xffffffff834aebc0 cpu_info_full_primary+0x2bc0 r13 0 r14 0 r15 0x1 rip 0xffffffff816a99e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a0b1ba0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=291538 pid=67508 tcnt=3 stat=sleep flags process=10 proc=20 runpri=32, usrpri=50, slppri=4, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffd6d8,0xffff80002a04ef70 process=0xffff80002a391b30 user=0xffff80002a0ad000, vmspace=0xfffffd806c15f8d8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 57923 81279 14696 0 2 0x40 syz-executor *67508 291538 74662 32767 3 0x30 syz-executor 67508 128188 74662 32767 3 0x4000090 fsleep syz-executor 67508 284190 74662 32767 3 0x4000090 fsleep syz-executor 60400 522856 81391 32767 7 0x10 syz-executor 60400 484609 81391 32767 3 0x4000090 netacc syz-executor 14696 375511 71780 0 3 0x80 ppwait syz-executor 71780 496230 21140 0 3 0x82 wait syz-executor 8200 448929 64672 32767 3 0x90 nanoslp syz-executor 8200 366191 64672 32767 3 0x4000090 sbwait syz-executor 8200 70675 64672 32767 3 0x4000090 fsleep syz-executor 63058 368581 67017 32767 3 0x90 nanoslp syz-executor 63058 108982 67017 32767 3 0x4000090 pipewr syz-executor 63058 506725 67017 32767 3 0x4000090 fsleep syz-executor 9968 369259 10473 32767 3 0x90 nanoslp syz-executor 9968 23668 10473 32767 3 0x4000090 nanoslp syz-executor 9968 249359 10473 32767 3 0x4000090 fsleep syz-executor 23507 425228 86891 32767 3 0x90 nanoslp syz-executor 23507 507117 86891 32767 3 0x4000090 kqread syz-executor 23507 479950 86891 32767 3 0x4000090 fsleep syz-executor 64672 453775 85336 32767 3 0x90 nanoslp syz-executor 74662 11310 20385 32767 3 0x90 nanoslp syz-executor 49162 457952 79003 32767 3 0x90 nanoslp syz-executor 67017 172841 92549 32767 3 0x90 nanoslp syz-executor 86891 242363 37961 32767 3 0x90 nanoslp syz-executor 81391 38733 78058 32767 3 0x90 nanoslp syz-executor 10473 11777 93012 32767 3 0x90 nanoslp syz-executor 78058 79826 21140 0 3 0x82 wait syz-executor 79003 132341 21140 0 3 0x82 wait syz-executor 37961 522905 21140 0 3 0x82 wait syz-executor 20385 432455 21140 0 3 0x82 wait syz-executor 92549 216432 21140 0 3 0x82 wait syz-executor 85336 17821 21140 0 3 0x82 wait syz-executor 93012 217593 21140 0 3 0x82 wait syz-executor 3909 46823 0 0 3 0x14200 bored sosplice 21140 409607 68356 0 3 0x82 kqread syz-executor 68356 485696 41060 0 3 0x10008a sigsusp ksh 41060 435095 61474 0 3 0x98 kqread sshd-session 61474 160195 38445 0 3 0x92 kqread sshd-session 83897 179207 1 0 3 0x100083 ttyin getty 38445 168572 1 0 3 0x88 kqread sshd 35231 344362 70060 73 3 0x1100010 biowait syslogd 70060 62793 1 0 3 0x100082 sbwait syslogd 2765 288476 1 0 3 0x100080 kqread resolvd 16797 72617 5498 77 3 0x100092 kqread dhcpleased 42317 309257 5498 77 3 0x100092 kqread dhcpleased 5498 509372 1 0 3 0x80 kqread dhcpleased 60921 102918 0 0 3 0x14200 bored smr 48353 134088 0 0 2 0x14200 zerothread 36784 179501 0 0 3 0x14200 aiodoned aiodoned 27264 464896 0 0 3 0x14200 syncer update 16457 391301 0 0 3 0x14200 cleaner cleaner 58693 405227 0 0 3 0x14200 reaper reaper 46286 424052 0 0 3 0x14200 pgdaemon pagedaemon 69768 488903 0 0 3 0x14200 bored viomb 65194 123912 0 0 3 0x40014200 acpi0 acpi0 80217 69912 0 0 3 0x40014200 idle1 93711 264344 0 0 3 0x14200 bored softnet3 14674 184317 0 0 3 0x14200 bored softnet2 36944 487591 0 0 3 0x14200 bored softnet1 17810 86772 0 0 3 0x14200 bored softnet0 16948 493178 0 0 3 0x14200 bored systqmp 85825 88495 0 0 3 0x14200 bored systq 37616 123800 0 0 3 0x14200 tmoslp softclockmp 51297 66885 0 0 3 0x40014200 tmoslp softclock 13077 260605 0 0 3 0x40014200 idle0 1 439454 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &map->flags_lock r = 0 (0xfffffd806c15fa30) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 vm_map_lock_ln+0x153 sys/uvm/uvm_map.c:5258 #4 uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3059 #5 sys_mprotect+0x34c sys/uvm/uvm_mmap.c:585 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 67508 (syz-executor) thread 0xffff8000ffffccb8 (284190) exclusive rrwlock inode r = 0 (0xfffffd806c4d11a8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 uvn_io+0x412 sys/uvm/uvm_vnode.c:1265 #6 uvn_put+0x125 sys/uvm/uvm_vnode.c:928 #7 uvm_pager_put+0x18e sys/uvm/uvm_pager.c:525 #8 uvn_flush+0x72a sys/uvm/uvm_vnode.c:727 #9 uvm_map_clean+0x87e sys/uvm/uvm_map.c:4578 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff835a2200) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #1 syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 Process 8200 (syz-executor) thread 0xffff80002a04fc08 (366191) exclusive rwlock sbufrcv r = 0 (0xffff8000012f8b50) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sblock+0xb7 sys/kern/uipc_socket2.c:549 #3 soreceive+0x295 sys/kern/uipc_socket.c:947 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1082 #5 sys_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:973 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 35231 (syslogd) thread 0xffff8000ffffdbe8 (344362) exclusive rrwlock inode r = 0 (0xfffffd806e6fbd60) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10184 11047K 11059K 166960K 11289 0 pcb 17 12K 12K 166960K 17 0 rtable 232 6K 6K 166960K 613 0 pf 31 16K 16K 166960K 49 0 ifaddr 42 7K 7K 166960K 82 0 ifgroup 50 2K 2K 166960K 86 0 sysctl 2 0K 0K 166960K 2 0 counters 64 36K 36K 166960K 82 0 ioctlops 0 0K 2K 166960K 38 0 iov 1 4K 4K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1468 92K 92K 166960K 1501 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 26 97K 157K 166960K 350 0 sigio 2 0K 0K 166960K 2 0 proc 65 91K 176K 166960K 740 0 subproc 104 6K 13K 166960K 221 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 10 0 in_multi 99 7K 7K 166960K 202 0 ether_multi 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 484 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 258 74K 130K 166960K 3964 0 UVM aobj 5 2K 2K 166960K 6 0 pinsyscall 47 94K 126K 166960K 1567 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 7 0 NDP 13 0K 2K 166960K 54 0 temp 38 6810K 6938K 166960K 5005 0 kqueue 15 24K 28K 166960K 34 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 55 0 52 1 0 1 1 0 8 0 rtentry 112 210 0 101 4 0 4 4 0 8 0 unpcb 144 73 0 52 1 0 1 1 0 8 0 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 808 85 0 77 5 0 5 5 0 8 3 arp 120 36 0 18 1 0 1 1 0 8 0 ipq 40 1 0 1 1 0 1 1 0 8 1 ipqe 40 44 0 44 1 0 1 1 0 8 1 inpcb 336 250 0 235 7 0 7 7 0 8 5 nd6 136 51 0 28 1 0 1 1 0 8 0 kcovpl 48 17 0 9 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 862 0 407 31 2 29 29 0 8 0 art_table 32 863 0 407 4 0 4 4 0 8 0 art_node 16 209 0 110 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 1 0 1 0 8 0 shmpl 112 3 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1663 0 141 96 0 96 96 0 8 0 ffsino 272 1663 0 141 102 0 102 102 0 8 0 nchpl 144 1932 0 242 63 0 63 63 0 8 0 uvmvnodes 80 1893 0 0 39 0 39 39 0 8 0 vnodes 216 1893 0 0 106 0 106 106 0 8 0 namei 1024 6706 0 6706 3 1 2 2 0 8 2 percpumem 16 55 0 9 1 0 1 1 0 8 0 kstatmem 264 40 0 18 2 0 2 2 0 8 0 scxspl 216 8576 0 8575 5 2 3 3 1 8 2 plimitpl 152 136 0 108 2 0 2 2 0 8 0 sigapl 424 604 0 547 10 1 9 9 0 8 1 futexpl 64 1164 0 1158 2 1 1 1 0 8 0 knotepl 120 305 0 0 10 0 10 10 0 8 0 kqueuepl 216 36 0 25 1 0 1 1 0 8 0 pipepl 320 135 0 106 4 0 4 4 0 8 1 fdescpl 496 585 0 547 8 1 7 7 0 8 0 filepl 152 2081 0 1817 14 0 14 14 0 8 3 lockfpl 104 26 0 23 1 0 1 1 0 8 0 lockfspl 48 14 0 11 1 0 1 1 0 8 0 sessionpl 144 31 0 15 1 0 1 1 0 8 0 pgrppl 48 49 0 25 1 0 1 1 0 8 0 ucredpl 104 189 0 171 1 0 1 1 0 8 0 zombiepl 144 548 0 547 1 0 1 1 0 8 0 processpl 1160 604 0 547 6 0 6 6 0 8 1 procpl 648 720 0 652 7 0 7 7 0 8 1 sosppl 168 2 0 2 2 1 1 1 0 8 1 sockpl 664 378 0 338 10 1 9 9 0 8 5 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 147 0 0 19 0 19 19 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 284 0 0 18 0 18 18 0 8 0 bufpl 280 4973 0 95 349 0 349 349 0 8 0 anonpl 24 159857 0 156418 51 0 51 51 0 185 27 amapchunkpl 152 12792 0 12211 35 0 35 35 0 158 11 amappl16 200 3990 0 3976 5 3 2 5 0 8 0 amappl15 192 11 0 11 2 2 0 1 0 8 0 amappl14 184 121 0 111 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 1328 0 1292 3 0 3 3 0 8 0 amappl11 160 53 0 43 1 0 1 1 0 8 0 amappl10 152 10 0 10 1 1 0 1 0 8 0 amappl9 144 138 0 138 1 1 0 1 0 8 0 amappl8 136 18 0 17 1 0 1 1 0 8 0 amappl7 128 113 0 102 1 0 1 1 0 8 0 amappl6 120 250 0 249 1 0 1 1 0 8 0 amappl5 112 174 0 166 1 0 1 1 0 8 0 amappl4 104 299 0 285 1 0 1 1 0 8 0 amappl3 96 2383 0 2250 4 0 4 4 0 8 0 amappl2 88 762 0 700 2 0 2 2 0 8 0 amappl1 80 8483 0 7944 13 0 13 13 0 8 0 amappl 88 3561 0 3358 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 24 585 0 547 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 585 0 547 1 0 1 1 0 8 0 vmmpekpl 168 6016 0 5961 5 0 5 5 0 8 0 vmmpepl 168 43972 0 41943 95 0 95 95 0 357 4 vmsppl 448 584 0 547 6 0 6 6 0 8 1 rwobjpl 56 18614 0 15869 41 0 41 41 0 8 1 pdppl 4096 1177 0 1094 141 54 87 113 0 8 4 pvpl 32 28162 0 0 229 1 228 228 0 265 0 pmappl 248 584 0 547 5 1 4 4 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 443 0 60 12 0 12 12 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:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd806c15f9f0) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd806c15f908,fffffd806c15f9f0,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd806c15f8d8,eecbf89d000,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_map_protect(fffffd806c15f8d8,eecbf69e000,eecbf89d000,1,0,0,42a6187d16ee729d) at uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3059 sys_mprotect(ffff80002a04f6f8,ffff80002a0b1fb0,ffff80002a0b1f00) at sys_mprotect+0x34c sys/uvm/uvm_mmap.c:585 syscall(ffff80002a0b1fb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0b1fb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7e88893cd0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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: 0x784b580022f0, count: 12 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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: 0x784b580022f0, count: -3