witness: lock order reversal: 1st 0xffffffff82c65f30 &sched_lock (&sched_lock) 2nd 0xffff800024730128 &pr->ps_mtx (&pr->ps_mtx) lock order "&pr->ps_mtx"(mutex) -> "&sched_lock"(sched_lock) first seen at: #0 __mp_lock+0xa2 read_rflags machine/cpufunc.h:195 [inline] #0 __mp_lock+0xa2 intr_disable machine/cpufunc.h:216 [inline] #0 __mp_lock+0xa2 sys/kern/kern_lock.c:142 #1 donice+0x178 sys/kern/kern_resource.c:218 #2 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #2 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #3 Xsyscall+0x128 lock order "&sched_lock"(sched_lock) -> "&pr->ps_mtx"(mutex) first seen at: #0 mtx_enter+0x3e sys/kern/kern_lock.c:265 #1 single_thread_set+0x35a single_thread_wait sys/kern/kern_sig.c:2172 [inline] #1 single_thread_set+0x35a sys/kern/kern_sig.c:2155 #2 sigexit+0x90 sys/kern/kern_sig.c:1562 #3 postsig+0x4a9 sys/kern/kern_sig.c:1494 #4 userret+0x16e sys/kern/kern_sig.c:1987 #5 syscall+0x4e7 mi_syscall_return sys/sys/syscall_mi.h:137 [inline] #5 syscall+0x4e7 sys/arch/amd64/amd64/trap.c:644 #6 Xsyscall+0x128 Stopped at db_enter+0x1c: addq $0x8,%rsp ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800024730128,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800024730128,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1110 mtx_enter(ffff800024730118) at mtx_enter+0x3e sys/kern/kern_lock.c:265 single_thread_set(ffff800021262020,0,1) at single_thread_set+0x35a single_thread_wait sys/kern/kern_sig.c:2172 [inline] single_thread_set(ffff800021262020,0,1) at single_thread_set+0x35a sys/kern/kern_sig.c:2155 sigexit(ffff800021262020,6) at sigexit+0x90 sys/kern/kern_sig.c:1562 postsig(ffff800021262020,6,ffff8000212d1278) at postsig+0x4a9 sys/kern/kern_sig.c:1494 userret(ffff800021262020) at userret+0x16e sys/kern/kern_sig.c:1987 syscall(ffff8000212d13b0) at syscall+0x4e7 mi_syscall_return sys/sys/syscall_mi.h:137 [inline] syscall(ffff8000212d13b0) at syscall+0x4e7 sys/arch/amd64/amd64/trap.c:644 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a759e08c10, count: -9 ddb{0}> show registers rdi 0x3 rsi 0xffffffff82befdd0 __sancov_gen_cov_switch_values.134 rbp 0xffff8000212d0f80 rbx 0x3 rdx 0 rcx 0xffff800021262020 rax 0xffffffff82bc3ff0 cpu_info_full_primary+0x1ff0 r8 0xffff8000212d0ef0 r9 0x8080808080808080 r10 0x6f147a90428486fc r11 0x38ed2d7c6bd2e381 r12 0xfffffd8003a0d7a0 r13 0 r14 0xfffffd80039f9530 r15 0xfffffd80031cabc0 rip 0xffffffff8165630c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff8000212d0f70 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.7) pid=236488 stat=onproc flags process=500010 proc=4002000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000211ef550,0xffff8000212622d8 process=0xffff800024730018 user=0xffff8000212cc000, vmspace=0xfffffd806ba52588 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 12116 222536 87589 32767 3 0x90 nanoslp syz-executor.4 12116 393341 87589 32767 3 0x4000090 kqread syz-executor.4 12116 486192 87589 32767 3 0x4000090 fsleep syz-executor.4 12116 422245 87589 32767 3 0x4000090 fsleep syz-executor.4 69082 435558 23632 32767 3 0x90 nanoslp syz-executor.1 69082 130438 23632 32767 3 0x4000090 fsleep syz-executor.1 87414 52550 28681 32767 4 0x582010 syz-executor.7 *87414 236488 28681 32767 7 0x4502010 syz-executor.7 87414 230557 28681 32767 4 0x4580090 fsleep syz-executor.7 53191 423741 59458 32767 3 0x90 nanoslp syz-executor.5 53191 137657 59458 32767 3 0x4000090 kqpoll syz-executor.5 53191 260536 59458 32767 3 0x4000090 kqpoll syz-executor.5 53191 339534 59458 32767 3 0x4000090 fsleep syz-executor.5 48998 223354 75536 32767 3 0x90 piperd syz-executor.6 75536 425008 5575 0 3 0x82 wait syz-executor.6 93591 442107 37932 32767 3 0x10 getblk syz-executor.3 37932 414471 5575 0 3 0x82 wait syz-executor.3 70778 311957 84235 32767 3 0x10 biowait syz-executor.0 84235 515577 5575 0 3 0x82 wait syz-executor.0 5122 501526 45495 32767 3 0x10 biowait syz-executor.2 45495 276286 5575 0 3 0x82 wait syz-executor.2 28681 372614 40011 32767 3 0x90 nanoslp syz-executor.7 40011 266621 5575 0 3 0x82 wait syz-executor.7 59458 80975 51953 32767 3 0x90 nanoslp syz-executor.5 51953 318099 5575 0 3 0x82 wait syz-executor.5 63559 28286 0 0 3 0x14200 bored sosplice 23632 407406 13509 32767 3 0x90 nanoslp syz-executor.1 13509 479800 5575 0 3 0x82 wait syz-executor.1 87589 436934 87506 32767 3 0x90 nanoslp syz-executor.4 87506 152928 5575 0 3 0x82 wait syz-executor.4 5575 385436 95107 0 3 0x2000082 thrsleep syz-fuzzer 5575 514728 95107 0 3 0x6000082 nanoslp syz-fuzzer 5575 195008 95107 0 3 0x6000082 thrsleep syz-fuzzer 5575 98320 95107 0 3 0x6000082 wait syz-fuzzer 5575 151255 95107 0 3 0x6000082 thrsleep syz-fuzzer 5575 304518 95107 0 3 0x6000082 wait syz-fuzzer 5575 427747 95107 0 3 0x6000082 kqread syz-fuzzer 5575 353953 95107 0 3 0x6000082 wait syz-fuzzer 5575 228016 95107 0 3 0x6000082 thrsleep syz-fuzzer 5575 36355 95107 0 3 0x6000082 wait syz-fuzzer 5575 488408 95107 0 3 0x6000082 thrsleep syz-fuzzer 5575 145280 95107 0 3 0x6000082 wait syz-fuzzer 5575 409002 95107 0 3 0x6000082 thrsleep syz-fuzzer 5575 500445 95107 0 3 0x6000082 wait syz-fuzzer 5575 510669 95107 0 3 0x6000082 wait syz-fuzzer 5575 197378 95107 0 3 0x6000082 wait syz-fuzzer 95107 255760 50875 0 3 0x10008a sigsusp ksh 50875 305895 89475 0 3 0x9a kqread sshd 53537 235307 1 0 3 0x100083 ttyin getty 89475 335604 1 0 3 0x88 kqread sshd 39975 186623 28003 73 3 0x1100090 kqread syslogd 28003 421974 1 0 3 0x100082 netio syslogd 98709 127163 1 0 3 0x100080 kqread resolvd 45621 181803 25916 77 3 0x100092 kqread dhcpleased 29874 488632 25916 77 3 0x100092 kqread dhcpleased 25916 180560 1 0 3 0x80 kqread dhcpleased 87163 339853 0 0 3 0x14200 bored smr 65155 429398 0 0 3 0x14200 pgzero zerothread 8807 429771 0 0 3 0x14200 aiodoned aiodoned 57259 4903 0 0 3 0x14200 syncer update 44811 372548 0 0 3 0x14200 cleaner cleaner 7980 244257 0 0 3 0x14200 reaper reaper 87092 286493 0 0 3 0x14200 pgdaemon pagedaemon 84694 421366 0 0 3 0x14200 bored viomb 98481 371667 0 0 3 0x40014200 acpi0 acpi0 93021 493862 0 0 7 0x40014200 idle1 94413 454406 0 0 3 0x14200 bored softnet3 86058 214343 0 0 3 0x14200 bored softnet2 30801 445488 0 0 3 0x14200 bored softnet1 13455 212158 0 0 3 0x14200 bored softnet0 28821 45905 0 0 3 0x14200 bored systqmp 43443 238464 0 0 3 0x14200 bored systq 55168 25663 0 0 3 0x40014200 bored softclock 99633 450630 0 0 3 0x40014200 idle0 1 361452 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive sched_lock &sched_lock r = 0 (0xffffffff82c65f30) #0 witness_lock+0x447 #1 single_thread_set+0x179 sys/kern/kern_sig.c:2113 #2 sigexit+0x90 sys/kern/kern_sig.c:1562 #3 postsig+0x4a9 sys/kern/kern_sig.c:1494 #4 userret+0x16e sys/kern/kern_sig.c:1987 #5 syscall+0x4e7 mi_syscall_return sys/sys/syscall_mi.h:137 [inline] #5 syscall+0x4e7 sys/arch/amd64/amd64/trap.c:644 #6 Xsyscall+0x128 Process 87414 (syz-executor.7) thread 0xffff800021262020 (236488) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d03430) #0 witness_lock+0x447 #1 postsig+0x49e sys/kern/kern_sig.c:1500 #2 userret+0x16e sys/kern/kern_sig.c:1987 #3 syscall+0x4e7 mi_syscall_return sys/sys/syscall_mi.h:137 [inline] #3 syscall+0x4e7 sys/arch/amd64/amd64/trap.c:644 #4 Xsyscall+0x128 exclusive sched_lock &sched_lock r = 0 (0xffffffff82c65f30) #0 witness_lock+0x447 #1 single_thread_set+0x179 sys/kern/kern_sig.c:2113 #2 sigexit+0x90 sys/kern/kern_sig.c:1562 #3 postsig+0x4a9 sys/kern/kern_sig.c:1494 #4 userret+0x16e sys/kern/kern_sig.c:1987 #5 syscall+0x4e7 mi_syscall_return sys/sys/syscall_mi.h:137 [inline] #5 syscall+0x4e7 sys/arch/amd64/amd64/trap.c:644 #6 Xsyscall+0x128 Process 93591 (syz-executor.3) thread 0xffff800021225800 (442107) exclusive rrwlock inode r = 0 (0xfffffd8069810700) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vn_closefile+0xca vn_close sys/kern/vfs_vnops.c:292 [inline] #5 vn_closefile+0xca sys/kern/vfs_vnops.c:609 #6 fdrop+0xcb sys/kern/kern_descrip.c:1274 #7 closef+0x120 sys/kern/kern_descrip.c:1258 #8 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 70778 (syz-executor.0) thread 0xffff80002127c2a8 (311957) exclusive rrwlock inode r = 0 (0xfffffd8069c12b38) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #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:1314 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069810810) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #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:1847 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 5122 (syz-executor.2) thread 0xffff80002127cff0 (501526) exclusive rrwlock inode r = 0 (0xfffffd806e396928) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #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:1343 #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:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8064079d58) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #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:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10208 6411K 6420K 78643K 11359 0 pcb 13 12K 14K 78643K 17 0 rtable 244 6K 7K 78643K 1636 0 pf 29 8K 8K 78643K 77 0 ifaddr 44 15K 16K 78643K 146 0 ifgroup 50 2K 2K 78643K 146 0 sysctl 3 1K 1K 78643K 3 0 counters 60 35K 35K 78643K 108 0 ioctlops 0 0K 2K 78643K 173 0 iov 0 0K 24K 78643K 2881 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1279 80K 80K 78643K 3255 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 161 0 VM map 2 1K 1K 78643K 2 0 sem 9 1K 1K 78643K 81 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 22 81K 109K 78643K 12552 0 sigio 0 0K 0K 78643K 332 0 proc 56 78K 103K 78643K 2011 0 subproc 104 6K 6K 78643K 416 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 441 0 in_multi 99 7K 7K 78643K 457 0 ether_multi 1 0K 0K 78643K 3 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 187 837K 837K 78643K 187 0 exec 0 0K 1K 78643K 2566 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 458 96K 107K 78643K 130426 0 UVM aobj 131 4K 5K 78643K 137 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 252 0 NDP 11 0K 2K 78643K 99 0 temp 77 5920K 6000K 78643K 39051 0 kqueue 13 20K 46K 78643K 4461 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 1400 0 1397 20 15 5 5 0 8 4 rtentry 112 398 0 283 4 0 4 4 0 8 0 unpcb 144 24943 0 24928 105 101 4 13 0 8 3 syncache 304 144 0 144 27 27 0 1 0 8 0 tcpqe 32 244 0 244 20 20 0 1 0 8 0 tcpcb 808 4599 0 4593 129 127 2 15 0 8 0 arp 120 68 0 49 1 0 1 1 0 8 0 ipq 40 15 0 15 4 4 0 1 0 8 0 ipqe 40 89 0 89 4 4 0 1 0 8 0 inpcb 368 9143 0 9131 137 135 2 18 0 8 0 nd6 136 117 0 89 2 1 1 2 0 8 0 kcovpl 48 32 0 24 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1596 0 1130 33 3 30 30 0 8 0 art_table 32 1597 0 1130 4 0 4 4 0 8 0 art_node 16 397 0 292 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 7 0 0 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 17094 0 15648 91 0 91 91 0 8 0 ffsino 272 17094 0 15648 97 0 97 97 0 8 0 nchpl 144 33730 0 32091 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 108464 0 108463 2 1 1 2 0 8 0 percpumem 16 67 0 24 1 0 1 1 0 8 0 kstatmem 264 70 0 48 2 0 2 2 0 8 0 scxspl 216 92007 0 92005 32 31 1 8 1 8 0 plimitpl 152 1562 0 1538 6 4 2 2 0 8 0 sigapl 424 12802 0 12751 7 0 7 7 0 8 0 futexpl 64 99569 0 99564 1 0 1 1 0 8 0 knotepl 120 1175 0 0 22 0 22 22 0 8 0 kqueuepl 216 6545 0 6533 62 57 5 5 0 8 4 pipepl 320 2973 0 2945 76 73 3 13 0 8 0 fdescpl 496 12784 0 12751 7 2 5 6 0 8 0 filepl 152 88581 0 88342 151 133 18 23 0 8 8 lockfpl 104 1493 0 1491 2 1 1 2 0 8 0 lockfspl 48 455 0 453 1 0 1 1 0 8 0 sessionpl 144 47 0 31 1 0 1 1 0 8 0 pgrppl 48 324 0 308 1 0 1 1 0 8 0 ucredpl 104 9636 0 9618 1 0 1 1 0 8 0 zombiepl 144 12751 0 12751 1 0 1 1 0 8 1 processpl 1072 12802 0 12751 4 0 4 4 0 8 0 procpl 680 37866 0 37791 22 14 8 9 0 8 1 sosppl 168 201 0 201 13 13 0 1 0 8 0 sockpl 488 36137 0 36110 609 596 13 47 0 8 8 mcl64k 65536 25 0 0 3 0 3 3 0 8 0 mcl16k 16384 22 0 0 3 1 2 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 25 0 0 4 1 3 3 0 8 0 mcl4k 4096 58 0 0 4 0 4 4 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 347 0 0 34 9 25 34 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 1245 0 0 59 0 59 59 0 8 0 bufpl 288 20520 0 14195 453 0 453 453 0 8 0 anonpl 24 3526307 0 3514914 343 221 122 165 0 186 0 amapchunkpl 152 418023 0 417110 111 70 41 48 0 158 3 amappl16 200 156951 0 156672 1025 999 26 66 0 8 8 amappl15 192 14 0 14 1 1 0 1 0 8 0 amappl14 184 237 0 221 2 1 1 2 0 8 0 amappl13 176 14 0 14 3 3 0 1 0 8 0 amappl12 168 13792 0 13755 2 0 2 2 0 8 0 amappl11 160 51 0 41 1 0 1 1 0 8 0 amappl10 152 50 0 39 1 0 1 1 0 8 0 amappl9 144 304 0 303 1 0 1 1 0 8 0 amappl8 136 722 0 543 7 0 7 7 0 8 0 amappl7 128 135 0 119 2 0 2 2 0 8 0 amappl6 120 539 0 508 2 1 1 2 0 8 0 amappl5 112 550 0 541 1 0 1 1 0 8 0 amappl4 104 964 0 917 3 1 2 3 0 8 0 amappl3 96 80115 0 80018 18 14 4 4 0 8 1 amappl2 88 13561 0 13488 3 1 2 3 0 8 0 amappl1 80 53900 0 53379 22 10 12 22 0 8 0 amappl 88 129317 0 129044 9 1 8 8 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 12784 0 12751 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 12784 0 12751 1 0 1 1 0 8 0 vmmpekpl 168 109148 0 109085 6 2 4 4 0 8 0 vmmpepl 168 892746 0 890320 357 221 136 154 0 357 11 vmsppl 464 12783 0 12751 7 2 5 6 0 8 0 rwobjpl 56 329237 0 321755 143 30 113 120 0 8 0 pdppl 4096 25576 0 25502 374 292 82 90 0 8 8 pvpl 32 5869260 0 5851702 690 455 235 364 0 265 21 pmappl 248 12783 0 12751 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1452 0 585 26 0 26 26 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800024730128,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800024730128,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1110 mtx_enter(ffff800024730118) at mtx_enter+0x3e sys/kern/kern_lock.c:265 single_thread_set(ffff800021262020,0,1) at single_thread_set+0x35a single_thread_wait sys/kern/kern_sig.c:2172 [inline] single_thread_set(ffff800021262020,0,1) at single_thread_set+0x35a sys/kern/kern_sig.c:2155 sigexit(ffff800021262020,6) at sigexit+0x90 sys/kern/kern_sig.c:1562 postsig(ffff800021262020,6,ffff8000212d1278) at postsig+0x4a9 sys/kern/kern_sig.c:1494 userret(ffff800021262020) at userret+0x16e sys/kern/kern_sig.c:1987 syscall(ffff8000212d13b0) at syscall+0x4e7 mi_syscall_return sys/sys/syscall_mi.h:137 [inline] syscall(ffff8000212d13b0) at syscall+0x4e7 sys/arch/amd64/amd64/trap.c:644 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a759e08c10, count: -9 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+0x27 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d58ff0) at sched_idle+0x41e sys/kern/kern_sched.c:188 end trace frame: 0x0, count: -5