witness: lock order reversal: 1st 0xffffffff82d0ad08 &sched_lock (&sched_lock) 2nd 0xffff8000247162a8 &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(ffff8000247162a8,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff8000247162a8,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1110 mtx_enter(ffff800024716298) at mtx_enter+0x3e sys/kern/kern_lock.c:265 single_thread_set(ffff800021224000,0,1) at single_thread_set+0x35a single_thread_wait sys/kern/kern_sig.c:2172 [inline] single_thread_set(ffff800021224000,0,1) at single_thread_set+0x35a sys/kern/kern_sig.c:2155 sigexit(ffff800021224000,6) at sigexit+0x90 sys/kern/kern_sig.c:1562 postsig(ffff800021224000,6,ffff8000246f56f8) at postsig+0x4a9 sys/kern/kern_sig.c:1494 userret(ffff800021224000) at userret+0x16e sys/kern/kern_sig.c:1987 syscall(ffff8000246f5830) at syscall+0x4e7 mi_syscall_return sys/sys/syscall_mi.h:137 [inline] syscall(ffff8000246f5830) at syscall+0x4e7 sys/arch/amd64/amd64/trap.c:644 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1ed43044370, count: -9 ddb{0}> show registers rdi 0x3 rsi 0x40000 acpi_pdirpa+0x2be63 rbp 0xffff8000246f5400 rbx 0x3 rdx 0xffff800000d0ca00 rcx 0xffff800021224000 rax 0x3ffff acpi_pdirpa+0x2be62 r8 0xffff8000246f5370 r9 0x8080808080808080 r10 0xaa1414e15ba804f9 r11 0xdb519461e7884743 r12 0xfffffd8003a0a850 r13 0 r14 0xfffffd80039f8790 r15 0xfffffd80031c7bc0 rip 0xffffffff81334fdc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff8000246f53f0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.4) pid=487363 stat=onproc flags process=500010 proc=4002000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000212257e8,0xffff800021225d48 process=0xffff800024716198 user=0xffff8000246f0000, vmspace=0xfffffd806bb9e758 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 68196 457229 63406 32767 4 0x582010 syz-executor.4 *68196 487363 63406 32767 7 0x4502010 syz-executor.4 18430 19768 56647 32767 3 0x90 nanoslp syz-executor.2 18430 124486 56647 32767 3 0x4000090 netio syz-executor.2 18430 484369 56647 32767 3 0x4000090 fsleep syz-executor.2 1707 386081 55159 32767 2 0x10 syz-executor.6 1707 486159 55159 32767 3 0x4000090 netio syz-executor.6 1707 207732 55159 32767 2 0x4000010 syz-executor.6 2715 516065 74885 32767 2 0x10 syz-executor.5 2715 418906 74885 32767 3 0x4000090 fsleep syz-executor.5 43678 384963 84562 32767 3 0x10 biowait syz-executor.7 84562 461850 7968 0 3 0x82 wait syz-executor.7 3225 288024 75985 32767 7 0x10 syz-executor.1 75985 388563 7968 0 3 0x82 wait syz-executor.1 63406 151808 13090 32767 3 0x90 nanoslp syz-executor.4 13090 13062 7968 0 3 0x82 wait syz-executor.4 54374 402969 93904 32767 3 0x10 biowait syz-executor.0 93904 356710 7968 0 3 0x82 wait syz-executor.0 74885 158337 81568 32767 3 0x90 nanoslp syz-executor.5 81568 40040 7968 0 3 0x82 wait syz-executor.5 45410 94587 95904 32767 3 0x90 nanoslp syz-executor.3 95904 374630 7968 0 3 0x82 wait syz-executor.3 45808 206739 0 0 3 0x14200 bored sosplice 55159 40757 31341 32767 3 0x90 nanoslp syz-executor.6 31341 251345 7968 0 3 0x82 wait syz-executor.6 56647 507678 68719 32767 3 0x90 nanoslp syz-executor.2 68719 163284 7968 0 3 0x82 wait syz-executor.2 7968 190379 2995 0 3 0x2000082 wait syz-fuzzer 7968 364075 2995 0 3 0x6000082 nanoslp syz-fuzzer 7968 445856 2995 0 3 0x6000082 wait syz-fuzzer 7968 130970 2995 0 3 0x6000082 thrsleep syz-fuzzer 7968 446294 2995 0 3 0x6000082 wait syz-fuzzer 7968 350228 2995 0 3 0x6000082 thrsleep syz-fuzzer 7968 504603 2995 0 3 0x6000082 wait syz-fuzzer 7968 294153 2995 0 3 0x6000082 thrsleep syz-fuzzer 7968 87447 2995 0 3 0x6000082 wait syz-fuzzer 7968 370761 2995 0 3 0x6000082 thrsleep syz-fuzzer 7968 271700 2995 0 3 0x6000082 wait syz-fuzzer 7968 516297 2995 0 3 0x6000082 wait syz-fuzzer 7968 13087 2995 0 3 0x6000082 thrsleep syz-fuzzer 7968 317283 2995 0 3 0x6000082 kqread syz-fuzzer 7968 447847 2995 0 3 0x6000082 thrsleep syz-fuzzer 7968 334568 2995 0 3 0x6000082 wait syz-fuzzer 2995 276886 78733 0 3 0x10008a sigsusp ksh 78733 274473 95154 0 3 0x9a kqread sshd 5375 308652 1 0 3 0x100083 ttyin getty 95154 429256 1 0 3 0x88 kqread sshd 88368 403418 52365 73 3 0x1100090 kqread syslogd 52365 148578 1 0 3 0x100082 netio syslogd 24851 276534 1 0 3 0x100080 kqread resolvd 26002 433769 82130 77 3 0x100092 kqread dhcpleased 66207 346664 82130 77 3 0x100092 kqread dhcpleased 82130 142772 1 0 3 0x80 kqread dhcpleased 41784 33654 0 0 3 0x14200 bored smr 21145 52799 0 0 2 0x14200 zerothread 60707 188365 0 0 3 0x14200 aiodoned aiodoned 56788 66831 0 0 3 0x14200 syncer update 83583 323244 0 0 3 0x14200 cleaner cleaner 82593 438952 0 0 3 0x14200 reaper reaper 49764 6662 0 0 3 0x14200 pgdaemon pagedaemon 54226 419872 0 0 3 0x14200 bored viomb 16152 74440 0 0 3 0x40014200 acpi0 acpi0 75766 54822 0 0 3 0x40014200 idle1 81205 391903 0 0 3 0x14200 bored softnet3 49785 37323 0 0 3 0x14200 bored softnet2 53238 269190 0 0 3 0x14200 bored softnet1 61023 409760 0 0 3 0x14200 bored softnet0 64924 178305 0 0 3 0x14200 bored systqmp 2394 495943 0 0 3 0x14200 bored systq 78465 24162 0 0 3 0x40014200 bored softclock 60570 181471 0 0 3 0x40014200 idle0 1 476898 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 (0xffffffff82d0ad08) #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 68196 (syz-executor.4) thread 0xffff800021224000 (487363) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82c795f0) #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 (0xffffffff82d0ad08) #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 43678 (syz-executor.7) thread 0xffff80002121bd58 (384963) exclusive rrwlock inode r = 0 (0xfffffd806e6b00a0) #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 (0xfffffd80679d35f0) #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 Process 3225 (syz-executor.1) thread 0xffff8000246dc2b0 (288024) exclusive rrwlock inode r = 0 (0xfffffd806e6b04e0) #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 (0xfffffd8067499e68) #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 54374 (syz-executor.0) thread 0xffff8000212247f8 (402969) exclusive rrwlock inode r = 0 (0xfffffd806e6b0920) #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 (0xfffffd80674991a8) #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 10192 6409K 6420K 78643K 11336 0 pcb 13 12K 14K 78643K 17 0 rtable 236 6K 7K 78643K 1506 0 pf 29 8K 8K 78643K 73 0 ifaddr 44 15K 15K 78643K 138 0 ifgroup 50 2K 2K 78643K 138 0 sysctl 2 0K 0K 78643K 2 0 counters 60 35K 35K 78643K 104 0 ioctlops 0 0K 2K 78643K 177 0 iov 0 0K 24K 78643K 2095 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1278 80K 80K 78643K 2737 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 13K 78643K 438 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 526 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 23 85K 113K 78643K 7665 0 sigio 1 0K 0K 78643K 484 0 proc 56 78K 115K 78643K 1495 0 subproc 104 6K 6K 78643K 390 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 436 0 in_multi 99 7K 7K 78643K 427 0 ether_multi 1 0K 0K 78643K 4 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 91 413K 413K 78643K 91 0 exec 0 0K 1K 78643K 1300 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 414 92K 104K 78643K 76602 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 170 0 NDP 11 0K 2K 78643K 93 0 temp 74 5916K 5996K 78643K 22938 0 kqueue 12 18K 31K 78643K 813 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 120 356 0 353 5 4 1 3 0 8 0 rtentry 112 361 0 250 4 0 4 4 0 8 0 unpcb 144 7737 0 7717 53 52 1 8 0 8 0 syncache 304 81 0 81 15 14 1 1 0 8 1 tcpqe 32 354 0 354 12 11 1 1 0 8 1 tcpcb 808 2793 0 2773 87 84 3 11 0 8 0 arp 120 63 0 45 1 0 1 1 0 8 0 ipq 40 17 0 15 4 3 1 1 0 8 0 ipqe 40 220 0 152 4 3 1 1 0 8 0 inpcb 368 4966 0 4942 86 82 4 20 0 8 0 nd6 136 97 0 72 1 0 1 1 0 8 0 kcovpl 48 30 0 22 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1459 0 998 30 1 29 30 0 8 0 art_table 32 1460 0 998 4 0 4 4 0 8 0 art_node 16 360 0 259 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 3 1 0 1 1 0 8 0 semapl 112 524 0 514 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 11770 0 10329 91 0 91 91 0 8 0 ffsino 272 11770 0 10329 97 0 97 97 0 8 0 nchpl 144 21953 0 20309 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 74129 0 74127 6 5 1 2 0 8 0 percpumem 16 65 0 22 1 0 1 1 0 8 0 kstatmem 264 66 0 44 2 0 2 2 0 8 0 scxspl 216 72826 0 72824 30 29 1 8 1 8 0 plimitpl 152 1081 0 1058 11 10 1 2 0 8 0 sigapl 424 7918 0 7866 7 0 7 7 0 8 0 futexpl 64 62349 0 62347 2 1 1 1 0 8 0 knotepl 120 532 0 0 15 1 14 14 0 8 0 kqueuepl 216 1985 0 1977 47 45 2 8 0 8 1 pipepl 320 2210 0 2182 47 41 6 13 0 8 3 fdescpl 496 7900 0 7866 7 2 5 6 0 8 0 filepl 152 52609 0 52366 85 73 12 20 0 8 2 lockfpl 104 1517 0 1515 3 2 1 2 0 8 0 lockfspl 48 341 0 339 1 0 1 1 0 8 0 sessionpl 144 45 0 29 1 0 1 1 0 8 0 pgrppl 48 138 0 122 1 0 1 1 0 8 0 ucredpl 104 6183 0 6165 1 0 1 1 0 8 0 zombiepl 144 7867 0 7866 1 0 1 1 0 8 0 processpl 1072 7918 0 7866 4 0 4 4 0 8 0 procpl 680 21048 0 20975 15 7 8 8 0 8 1 sosppl 168 112 0 109 11 10 1 1 0 8 0 sockpl 488 13269 0 13222 274 266 8 34 0 8 0 mcl64k 65536 29 0 0 4 2 2 3 0 8 0 mcl16k 16384 13 0 0 2 0 2 2 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 32 0 0 4 1 3 3 0 8 0 mcl4k 4096 26 0 0 3 0 3 3 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 342 0 0 31 11 20 31 0 8 0 mtagpl 96 42 0 0 2 0 2 2 0 8 0 mbufpl 256 1219 0 0 61 0 61 61 0 8 0 bufpl 288 16206 0 9877 453 0 453 453 0 8 0 anonpl 24 819675 0 808502 160 82 78 97 0 186 0 amapchunkpl 152 239700 0 238803 79 41 38 48 0 158 0 amappl16 200 15152 0 14871 54 37 17 29 0 8 0 amappl15 192 17 0 17 1 1 0 1 0 8 0 amappl14 184 221 0 210 2 1 1 2 0 8 0 amappl13 176 11 0 11 2 2 0 1 0 8 0 amappl12 168 8872 0 8834 2 0 2 2 0 8 0 amappl11 160 50 0 40 1 0 1 1 0 8 0 amappl10 152 50 0 37 1 0 1 1 0 8 0 amappl9 144 226 0 225 2 1 1 1 0 8 0 amappl8 136 581 0 457 5 0 5 5 0 8 0 amappl7 128 87 0 73 2 1 1 2 0 8 0 amappl6 120 466 0 439 2 1 1 2 0 8 0 amappl5 112 414 0 405 1 0 1 1 0 8 0 amappl4 104 852 0 814 4 2 2 2 0 8 0 amappl3 96 47522 0 47424 10 7 3 4 0 8 0 amappl2 88 8403 0 8326 3 1 2 3 0 8 0 amappl1 80 37228 0 36698 22 10 12 22 0 8 0 amappl 88 75276 0 75014 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 7901 0 7867 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 7901 0 7867 1 0 1 1 0 8 0 vmmpekpl 168 66293 0 66236 4 0 4 4 0 8 0 vmmpepl 168 472908 0 470522 176 59 117 119 0 357 2 vmsppl 464 7900 0 7867 7 2 5 6 0 8 0 rwobjpl 56 122317 0 114894 112 6 106 108 0 8 0 pdppl 4096 15810 0 15734 364 282 82 90 0 8 6 pvpl 32 2426924 0 2409361 416 265 151 364 0 265 0 pmappl 248 7900 0 7867 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1341 0 477 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(ffff8000247162a8,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff8000247162a8,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1110 mtx_enter(ffff800024716298) at mtx_enter+0x3e sys/kern/kern_lock.c:265 single_thread_set(ffff800021224000,0,1) at single_thread_set+0x35a single_thread_wait sys/kern/kern_sig.c:2172 [inline] single_thread_set(ffff800021224000,0,1) at single_thread_set+0x35a sys/kern/kern_sig.c:2155 sigexit(ffff800021224000,6) at sigexit+0x90 sys/kern/kern_sig.c:1562 postsig(ffff800021224000,6,ffff8000246f56f8) at postsig+0x4a9 sys/kern/kern_sig.c:1494 userret(ffff800021224000) at userret+0x16e sys/kern/kern_sig.c:1987 syscall(ffff8000246f5830) at syscall+0x4e7 mi_syscall_return sys/sys/syscall_mi.h:137 [inline] syscall(ffff8000246f5830) at syscall+0x4e7 sys/arch/amd64/amd64/trap.c:644 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1ed43044370, 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 __mp_lock(ffffffff82c793e8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c793e8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82c793e8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x46b sys/kern/sched_bsd.c:470 sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414 getblk(fffffd807efb2438,1fa500,4000,0,ffffffffffffffff) at getblk+0x14c sys/kern/vfs_bio.c:1038 bread(fffffd807efb2438,1fa500,4000,ffff80002af93108) at bread+0x3e bio_doread sys/kern/vfs_bio.c:433 [inline] bread(fffffd807efb2438,1fa500,4000,ffff80002af93108) at bread+0x3e sys/kern/vfs_bio.c:478 ffs_update(fffffd806e6b0448,1) at ffs_update+0x14f sys/ufs/ffs/ffs_inode.c:91 ffs_truncate(fffffd806e6b0448,0,4,fffffd807f7d7138) at ffs_truncate+0xce7 ufs_rmdir(ffff80002af933d8) at ufs_rmdir+0x3a9 sys/ufs/ufs/ufs_vnops.c:1342 VOP_RMDIR(fffffd80744ed5f0,fffffd8072870b20,ffff80002af934b8) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407 dounlinkat(ffff8000246dc2b0,ffffff9c,7b0e71d9fc80,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1880 syscall(ffff80002af93630) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002af93630) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b0e71d9fc70, count: -16