kernel: protection fault trap, code=0 Stopped at sys_msgrcv+0x2df: movq 0x10(%r13),%rdi ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace sys_msgrcv(ffff8000287778b0,ffff80002e4258c0,ffff80002e425910) at sys_msgrcv+0x2df msg_copyout sys/kern/sysv_msg.c:639 [inline] sys_msgrcv(ffff8000287778b0,ffff80002e4258c0,ffff80002e425910) at sys_msgrcv+0x2df sys/kern/sysv_msg.c:349 syscall(ffff80002e425990) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e425990) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8c29025aba0, count: -3 ddb{0}> show registers rdi 0x106e __ALIGN_SIZE+0x6e rsi 0x20001cc8 rbp 0xffff80002e4258b0 rbx 0x106e __ALIGN_SIZE+0x6e rdx 0 rcx 0 rax 0xffff8000287778b0 r8 0x7f7fffffc000 r9 0x1 r10 0x834d6f366bc577a2 r11 0xa315e1e7f8dd59ec r12 0xfffffd805e7f5960 r13 0xdeafbeaddeafbead r14 0xffff800000d3a500 r15 0x1c0 rip 0xffffffff81bc92bf sys_msgrcv+0x2df cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002e425820 ss 0x10 sys_msgrcv+0x2df: movq 0x10(%r13),%rdi ddb{0}> show proc PROC (syz-executor.5) pid=191582 stat=onproc flags process=10 proc=4000000 pri=36, usrpri=58, nice=20 forw=0xffffffffffffffff, list=0xffff800028777340,0xffff8000212018a0 process=0xffff8000ffff65c8 user=0xffff80002e420000, vmspace=0xfffffd8069e6e590 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 1616 222664 41171 32767 7 0x10 syz-executor.5 * 1616 191582 41171 32767 7 0x4000010 syz-executor.5 1616 220284 41171 32767 3 0x4000090 fsleep syz-executor.5 1616 384931 41171 32767 3 0x4000090 fsleep syz-executor.5 48341 499627 41434 32767 2 0x10 syz-executor.7 41434 248490 8444 0 3 0x82 wait syz-executor.7 68786 84686 9462 32767 3 0x90 nanoslp syz-executor.6 41171 78380 47614 32767 3 0x90 nanoslp syz-executor.5 74611 448036 35136 32767 3 0x90 nanoslp syz-executor.3 9462 520617 8444 0 3 0x82 wait syz-executor.6 47614 186147 8444 0 3 0x82 wait syz-executor.5 97814 423904 9221 32767 2 0x10 syz-executor.4 9221 213646 8444 0 3 0x82 wait syz-executor.4 35136 376135 8444 0 3 0x82 wait syz-executor.3 27454 451586 61678 32767 2 0x10 syz-executor.1 72151 310869 19883 32767 3 0x90 nanoslp syz-executor.2 61678 419354 8444 0 3 0x82 wait syz-executor.1 29695 363222 86959 32767 3 0x10 biowait syz-executor.0 19883 361460 8444 0 3 0x82 wait syz-executor.2 86959 202473 8444 0 3 0x82 wait syz-executor.0 8444 441047 87301 0 3 0x82 wait syz-fuzzer 8444 279509 87301 0 3 0x4000082 nanoslp syz-fuzzer 8444 508560 87301 0 3 0x4000082 wait syz-fuzzer 8444 303509 87301 0 3 0x4000082 wait syz-fuzzer 8444 364964 87301 0 3 0x4000082 thrsleep syz-fuzzer 8444 236023 87301 0 3 0x4000082 wait syz-fuzzer 8444 263517 87301 0 3 0x4000082 thrsleep syz-fuzzer 8444 271677 87301 0 3 0x4000082 wait syz-fuzzer 8444 179382 87301 0 3 0x4000082 wait syz-fuzzer 8444 59357 87301 0 3 0x4000082 wait syz-fuzzer 8444 485253 87301 0 3 0x4000082 thrsleep syz-fuzzer 8444 345534 87301 0 3 0x4000082 wait syz-fuzzer 8444 262397 87301 0 3 0x4000082 thrsleep syz-fuzzer 8444 353991 87301 0 3 0x4000082 kqread syz-fuzzer 8444 449094 87301 0 3 0x4000082 thrsleep syz-fuzzer 87301 167997 83151 0 3 0x10008a sigsusp ksh 83151 141398 62537 0 3 0x9a kqread sshd 25912 297482 1 0 3 0x100083 ttyin getty 62537 99012 1 0 3 0x88 kqread sshd 24981 346067 93178 73 3 0x1100090 kqread syslogd 93178 137386 1 0 3 0x100082 netio syslogd 13385 128052 1 0 3 0x100080 kqread resolvd 84513 342922 15489 77 3 0x100092 kqread dhcpleased 43314 476379 15489 77 3 0x100092 kqread dhcpleased 15489 477422 1 0 3 0x80 kqread dhcpleased 69498 27481 0 0 3 0x14200 bored smr 90606 18176 0 0 3 0x14200 pgzero zerothread 63010 192879 0 0 3 0x14200 aiodoned aiodoned 51660 331391 0 0 3 0x14200 syncer update 79224 408881 0 0 3 0x14200 cleaner cleaner 43253 130941 0 0 3 0x14200 reaper reaper 22736 478511 0 0 3 0x14200 pgdaemon pagedaemon 71670 199480 0 0 3 0x14200 bored viomb 90965 232617 0 0 3 0x40014200 acpi0 acpi0 29276 134044 0 0 3 0x40014200 idle1 3363 177747 0 0 3 0x14200 bored softnet3 23530 71324 0 0 3 0x14200 bored softnet2 95977 315171 0 0 3 0x14200 bored softnet1 36114 168348 0 0 3 0x14200 bored softnet0 3055 136506 0 0 3 0x14200 bored systqmp 57085 282812 0 0 3 0x14200 bored systq 47713 178177 0 0 3 0x40014200 bored softclock 25699 424157 0 0 3 0x40014200 idle0 1 366033 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 1616 (syz-executor.5) thread 0xffff8000287778b0 (191582) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82c80768) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3c3 sys/kern/sched_bsd.c:405 #3 sleep_finish+0x184 sys/kern/kern_synch.c:417 #4 rw_enter+0x35e sys/kern/kern_rwlock.c:286 #5 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1773 #6 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:673 #7 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #8 kpageflttrap+0x23e sys/arch/amd64/amd64/trap.c:286 #9 kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:341 #10 alltraps_kern_meltdown+0x7b #11 copyout+0x57 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #13 Xsyscall+0x128 Process 48341 (syz-executor.7) thread 0xffff800022cf1338 (499627) exclusive rrwlock inode r = 0 (0xfffffd806327bf78) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3074 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8064f68d68) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3059 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #9 Xsyscall+0x128 Process 97814 (syz-executor.4) thread 0xffff8000212015d8 (423904) exclusive rrwlock inode r = 0 (0xfffffd80764d9920) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3074 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8066dc7920) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3059 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #9 Xsyscall+0x128 Process 27454 (syz-executor.1) thread 0xffff8000211ff898 (451586) exclusive rrwlock inode r = 0 (0xfffffd80764d9d60) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3074 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d776e78) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3059 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #9 Xsyscall+0x128 Process 29695 (syz-executor.0) thread 0xffff8000211feb00 (363222) exclusive rrwlock inode r = 0 (0xfffffd806327ba28) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6f5 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1848 #13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069f4b918) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1848 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10176 6407K 6419K 78643K 11266 0 pcb 13 10K 12K 78643K 15 0 rtable 234 6K 6K 78643K 356 0 ifaddr 73 24K 24K 78643K 75 0 counters 60 35K 35K 78643K 60 0 ioctlops 0 0K 2K 78643K 29 0 iov 0 0K 2K 78643K 10 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1278 80K 80K 78643K 1301 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 84 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 19 69K 125K 78643K 322 0 sigio 0 0K 0K 78643K 10 0 proc 56 78K 103K 78643K 485 0 subproc 104 6K 6K 78643K 104 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 238 0 in_multi 99 6K 6K 78643K 117 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 366 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 289 81K 83K 78643K 5408 0 UVM aobj 7 2K 2K 78643K 10 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 6 0 NDP 11 0K 2K 78643K 27 0 temp 124 5866K 5930K 78643K 4638 0 kqueue 12 18K 22K 78643K 30 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 43 0 40 1 0 1 1 0 8 0 rtentry 112 112 0 2 4 0 4 4 0 8 0 unpcb 144 293 0 278 4 0 4 4 0 8 3 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpqe 32 241 0 241 2 1 1 1 0 8 1 tcpcb 776 43 0 39 2 0 2 2 0 8 1 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 368 499 0 491 13 4 9 13 0 8 8 nd6 136 25 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 256 454 0 2 29 0 29 29 0 8 0 art_table 32 455 0 2 4 0 4 4 0 8 0 art_node 16 111 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 13 1 0 1 1 0 8 0 semapl 112 82 0 72 1 0 1 1 0 8 0 shmpl 112 7 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1707 0 264 91 0 91 91 0 8 0 ffsino 272 1707 0 264 97 0 97 97 0 8 0 nchpl 144 2221 0 541 63 0 63 63 0 8 0 uvmvnodes 80 1820 0 0 38 0 38 38 0 8 0 vnodes 216 1820 0 0 102 0 102 102 0 8 0 namei 1024 7821 0 7818 3 1 2 2 0 8 1 percpumem 16 43 0 0 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 7890 0 7889 9 1 8 8 0 8 7 plimitpl 152 80 0 57 2 0 2 2 0 8 1 sigapl 424 619 0 569 7 0 7 7 0 8 0 futexpl 64 2199 0 2197 1 0 1 1 0 8 0 knotepl 120 114 0 0 4 0 4 4 0 8 0 kqueuepl 216 37 0 29 1 0 1 1 0 8 0 pipepl 320 294 0 266 8 0 8 8 0 8 5 fdescpl 496 602 0 572 6 0 6 6 0 8 1 filepl 152 3375 0 3139 15 0 15 15 0 8 5 lockfpl 104 149 0 147 1 0 1 1 0 8 0 lockfspl 48 7 0 5 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 90 0 74 1 0 1 1 0 8 0 ucredpl 104 192 0 174 1 0 1 1 0 8 0 zombiepl 144 572 0 569 1 0 1 1 0 8 0 processpl 1072 619 0 569 5 0 5 5 0 8 1 procpl 696 1001 0 934 8 0 8 8 0 8 0 sockpl 488 841 0 815 24 10 14 20 0 8 10 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 345 0 0 42 0 42 42 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 349 0 0 22 1 21 21 0 8 0 bufpl 288 4238 0 139 293 0 293 293 0 8 0 anonpl 24 207383 0 195215 106 2 104 105 0 186 21 amapchunkpl 152 17592 0 16795 40 0 40 40 0 158 3 amappl16 200 5887 0 5556 32 2 30 32 0 8 11 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 150 0 137 2 1 1 2 0 8 0 amappl13 176 16 0 16 2 1 1 1 0 8 1 amappl12 168 1256 0 1219 3 0 3 3 0 8 0 amappl11 160 54 0 42 1 0 1 1 0 8 0 amappl10 152 28 0 17 1 0 1 1 0 8 0 amappl9 144 281 0 279 2 1 1 2 0 8 0 amappl8 136 192 0 144 2 0 2 2 0 8 0 amappl7 128 61 0 44 1 0 1 1 0 8 0 amappl6 120 257 0 241 2 1 1 2 0 8 0 amappl5 112 162 0 155 1 0 1 1 0 8 0 amappl4 104 600 0 565 2 0 2 2 0 8 0 amappl3 96 3449 0 3375 3 0 3 3 0 8 0 amappl2 88 815 0 754 4 2 2 3 0 8 0 amappl1 80 10476 0 9965 22 7 15 22 0 8 2 amappl 88 4900 0 4694 7 0 7 7 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 9 0 3 1 0 1 1 0 8 0 uaddrrnd 24 603 0 573 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 603 0 573 1 0 1 1 0 8 0 vmmpekpl 168 11159 0 11110 3 0 3 3 0 8 0 vmmpepl 168 58388 0 56272 126 2 124 124 0 357 18 vmsppl 464 602 0 573 7 1 6 6 0 8 1 rwobjpl 56 23496 0 20381 50 1 49 49 0 8 1 pdppl 4096 1214 0 1146 128 46 82 96 0 8 14 pvpl 32 446628 0 429147 336 13 323 333 0 265 171 pmappl 248 602 0 573 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 729 0 54 20 0 20 20 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace sys_msgrcv(ffff8000287778b0,ffff80002e4258c0,ffff80002e425910) at sys_msgrcv+0x2df msg_copyout sys/kern/sysv_msg.c:639 [inline] sys_msgrcv(ffff8000287778b0,ffff80002e4258c0,ffff80002e425910) at sys_msgrcv+0x2df sys/kern/sysv_msg.c:349 syscall(ffff80002e425990) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e425990) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8c29025aba0, count: -3 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d58ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82c80560) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c80560) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002e415c00) at syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e415c00) at syscall+0x5cd sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7013674a6d10, count: -6