login: witness: lock order reversal: 1st 0xffff80000128ce60 sbufrcv (&so->so_rcv.sb_lock) 2nd 0xfffffd806de881d0 inode (&ip->i_lock) lock order [1] sbufrcv (&so->so_rcv.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff831566ce -> 0xffffffff830cf67f is missing lock order [2] inode (&ip->i_lock) -> [1] sbufrcv (&so->so_rcv.sb_lock) #0 rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 #1 sblock+0xb7 sys/kern/uipc_socket2.c:537 #2 soreceive+0x28e sys/kern/uipc_socket.c:876 #3 fifo_read+0x11a sys/miscfs/fifofs/fifo_vnops.c:264 #4 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #5 vn_rdwr+0x15b #6 vndsetcred+0xa1 sys/dev/vnd.c:684 #7 vndioctl+0xe6c sys/dev/vnd.c:485 #8 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #9 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #10 sys_ioctl+0x5c3 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806de881d0,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806de881b8,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806de881b8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd8064e9d120,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8064e9d120,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd8064e9d120,fffffd8064e9da68,0,0,200,0,1d5c291727e6fa64) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd8064e9d120,fffffd8064e9da68,ffff80002f15d1e0) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd806c524600,ec,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086 soreceive(ffff80000128cd80,ffff800038577d98,ffff800038577d48,0,ffff800038577d88,ffff800038577f0c,514fd0583990071e) at soreceive+0xc73 sys/kern/uipc_socket.c:1015 recvit(ffff80002f15d1e0,6,ffff800038577ee0,0,ffff800038577f90) at recvit+0x40a sys/kern/uipc_syscalls.c:1072 sys_recvmsg(ffff80002f15d1e0,ffff800038578040,ffff800038577f90) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 syscall(ffff800038578040) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038578040) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8e42447d5b0, count: -14 ddb{1}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff800038577820 rbx 0xfffffd800433fb48 rdx 0xffff80000128b540 rcx 0xffff80002f15d1e0 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff800038577700 r9 0x8080808080808080 r10 0xe19d4013ce4c1d89 r11 0xe5a5df93e842b02 r12 0 r13 0xfffffd8003b56f00 r14 0x3 r15 0xffffffff rip 0xffffffff82a6fbd5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800038577810 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=406945 pid=29191 tcnt=3 stat=onproc flags process=1000000 proc=4000000 runpri=24, usrpri=83, slppri=24, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002f15ca48,0xffff80002f15d478 process=0xffff80002f1586e8 user=0xffff800038573000, vmspace=0xfffffd806bdf83b0 estcpu=33, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 30706 57497 42741 0 7 0 syz-executor 96063 177867 9283 0 2 0x100002 ndp 72247 453134 80465 0 2 0 syz-executor 9283 268099 94960 0 3 0x10008a sigsusp sh 60802 85992 19248 0 2 0 syz-executor 60802 214076 19248 0 3 0x4000080 fsleep syz-executor 29191 513091 57769 0 2 0x1000000 syz-executor *29191 406945 57769 0 7 0x5000000 syz-executor 29191 85273 57769 0 2 0x5000000 syz-executor 73450 125652 78092 0 2 0x10 syz-executor 73450 141575 78092 0 3 0x4000090 fsleep syz-executor 94960 52935 82924 0 3 0x82 wait syz-executor 30328 232953 1 0 3 0x100083 ttyin getty 7145 170847 0 0 3 0x14200 acct acct 80465 257893 82924 0 3 0x82 nanoslp syz-executor 59275 519080 0 0 3 0x14200 bored sosplice 48146 184867 82924 0 3 0x2 biowait syz-executor 78092 213282 82924 0 3 0x82 nanoslp syz-executor 42741 12536 82924 0 3 0x82 nanoslp syz-executor 17810 367466 82924 0 3 0x2 getblk syz-executor 57769 106719 82924 0 3 0x82 nanoslp syz-executor 19248 15076 82924 0 3 0x82 nanoslp syz-executor 82924 361257 72085 0 2 0x2 syz-executor 72085 160554 61328 0 3 0x10008a sigsusp ksh 61328 75446 731 0 3 0x98 kqread sshd-session 731 152856 26986 0 3 0x92 kqread sshd-session 26986 297429 1 0 3 0x88 kqread sshd 75639 359929 21352 74 3 0x1100092 bpf pflogd 21352 519076 1 0 3 0x80 sbwait pflogd 46736 219981 86744 73 3 0x1100090 kqread syslogd 86744 309646 1 0 3 0x100082 sbwait syslogd 98516 481693 1 0 3 0x100080 kqread resolvd 81432 456395 33485 77 3 0x100092 kqread dhcpleased 84867 76594 33485 77 3 0x100092 kqread dhcpleased 33485 260535 1 0 3 0x80 kqread dhcpleased 26650 360753 0 0 3 0x14200 bored smr 69302 66995 0 0 2 0x14200 zerothread 59406 415475 0 0 3 0x14200 aiodoned aiodoned 40661 259870 0 0 3 0x14200 syncer update 39687 52087 0 0 3 0x14200 cleaner cleaner 88833 491879 0 0 3 0x14200 reaper reaper 62864 181927 0 0 3 0x14200 pgdaemon pagedaemon 7455 253958 0 0 3 0x14200 bored viomb 78413 203415 0 0 3 0x40014200 acpi0 acpi0 10070 404308 0 0 3 0x40014200 idle1 3623 78286 0 0 3 0x14200 bored softnet3 39091 152337 0 0 3 0x14200 bored softnet2 80504 258138 0 0 3 0x14200 bored softnet1 87625 483694 0 0 2 0x14200 softnet0 36629 144303 0 0 3 0x14200 bored systqmp 45379 194152 0 0 3 0x14200 bored systq 46613 24420 0 0 3 0x14200 tmoslp softclockmp 89039 224824 0 0 3 0x40014200 tmoslp softclock 98000 459061 0 0 3 0x40014200 idle0 1 362426 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 29191 (syz-executor) thread 0xffff80002f15d1e0 (406945) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8360db10) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 unp_externalize+0x14e #2 soreceive+0xc73 sys/kern/uipc_socket.c:1015 #3 recvit+0x40a sys/kern/uipc_syscalls.c:1072 #4 sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 exclusive rwlock sbufrcv r = 0 (0xffff80000128ce60) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sblock+0xb7 sys/kern/uipc_socket2.c:537 #3 soreceive+0x28e sys/kern/uipc_socket.c:876 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1072 #5 sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 48146 (syz-executor) thread 0xffff8000ffffdbe0 (184867) exclusive rrwlock inode r = 0 (0xfffffd806bec70e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1851 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f2831d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x21b sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1851 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 Process 17810 (syz-executor) thread 0xffff80002a44d458 (367466) exclusive rrwlock inode r = 0 (0xfffffd806bec7428) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3102 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c5911f0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3087 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10200 11099K 11399K 166960K 11971 0 pcb 17 14K 15K 166960K 180 0 rtable 237 8K 9K 166960K 593 0 pf 32 17K 19K 166960K 68 0 ifaddr 40 7K 7K 166960K 74 0 ifgroup 51 2K 2K 166960K 84 0 sysctl 4 1K 1K 166960K 4 0 counters 62 36K 36K 166960K 78 0 ioctlops 0 0K 4K 166960K 1585 0 iov 0 0K 16K 166960K 68 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1336 84K 85K 166960K 1756 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 24 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 17 61K 89K 166960K 673 0 sigio 0 0K 0K 166960K 5 0 proc 72 91K 152K 166960K 760 0 subproc 72 4K 4K 166960K 126 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 48 0 in_multi 92 6K 7K 166960K 175 0 ether_multi 1 0K 0K 166960K 5 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 504 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 209 72K 78K 166960K 7440 0 UVM aobj 9 2K 4K 166960K 10 0 pinsyscall 43 86K 103K 166960K 1931 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 24 0 NDP 13 0K 2K 166960K 49 0 temp 75 6900K 7028K 166960K 22701 0 kqueue 13 20K 26K 166960K 90 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 82 0 77 1 0 1 1 0 8 0 rtentry 112 190 0 83 4 0 4 4 0 8 0 unpcb 144 515 0 496 2 1 1 2 0 8 0 syncache 336 7 0 7 2 1 1 1 0 8 1 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 808 188 0 180 8 1 7 8 0 8 5 arp 120 31 0 15 1 0 1 1 0 8 0 inpcb 376 676 0 664 8 1 7 8 0 8 5 nd6 136 50 0 22 2 0 2 2 0 8 1 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 14 0 6 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 3 0 2 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 49 0 14 1 0 1 1 0 8 0 pfstkey 128 49 0 14 2 0 2 2 0 8 0 pfstate 376 49 0 14 5 0 5 5 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 812 0 318 34 0 34 34 0 8 3 art_table 32 814 0 318 5 0 5 5 0 8 1 art_node 16 188 0 92 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 1 1 0 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 21 0 11 1 0 1 1 0 8 0 shmpl 112 7 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2403 0 884 96 0 96 96 0 8 0 ffsino 280 2403 0 884 109 0 109 109 0 8 0 nchpl 144 3257 0 1547 64 0 64 64 0 8 0 uvmvnodes 80 2760 0 0 57 0 57 57 0 8 0 vnodes 216 2760 0 0 154 0 154 154 0 8 0 namei 1024 11346 0 11345 2 1 1 2 0 8 0 percpumem 16 53 0 8 1 0 1 1 0 8 0 kstatmem 264 38 0 16 2 0 2 2 0 8 0 scxspl 216 10235 0 10234 12 5 7 8 1 8 6 plimitpl 152 89 0 72 1 0 1 1 0 8 0 sigapl 424 966 0 915 7 1 6 7 0 8 0 futexpl 64 7760 0 7758 1 0 1 1 0 8 0 knotepl 120 541 0 0 17 0 17 17 0 8 0 kqueuepl 216 133 0 124 1 0 1 1 0 8 0 pipepl 328 225 0 198 8 5 3 8 0 8 0 fdescpl 504 946 0 915 5 0 5 5 0 8 0 filepl 152 5081 0 4859 16 5 11 15 0 8 1 lockfpl 104 183 0 181 1 0 1 1 0 8 0 lockfspl 48 74 0 72 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 51 0 34 1 0 1 1 0 8 0 ucredpl 104 832 0 818 1 0 1 1 0 8 0 zombiepl 144 915 0 915 1 0 1 1 0 8 1 processpl 1168 966 0 915 5 1 4 5 0 8 0 procpl 648 1713 0 1658 6 0 6 6 0 8 0 srpgc 96 7 0 7 2 1 1 1 0 8 1 sosppl 168 1 0 1 1 1 0 1 0 8 0 sockpl 688 1280 0 1244 10 1 9 10 0 8 5 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 16 0 0 1 0 1 1 0 8 0 mbufpl 256 1198 0 0 75 0 75 75 0 8 0 bufpl 280 3307 0 137 227 0 227 227 0 8 0 anonpl 24 153885 0 149760 49 9 40 48 0 185 10 amapchunkpl 152 23224 0 22758 26 2 24 26 0 158 1 amappl16 200 3012 0 2979 16 9 7 15 0 8 3 amappl15 192 31 0 31 1 1 0 1 0 8 0 amappl14 184 156 0 143 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 1710 0 1679 3 1 2 2 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 1 0 1 1 1 0 1 0 8 0 amappl9 144 248 0 247 1 0 1 1 0 8 0 amappl8 136 24 0 21 1 0 1 1 0 8 0 amappl7 128 147 0 133 1 0 1 1 0 8 0 amappl6 120 242 0 238 1 0 1 1 0 8 0 amappl5 112 171 0 161 1 0 1 1 0 8 0 amappl4 104 361 0 340 1 0 1 1 0 8 0 amappl3 96 4501 0 4404 4 0 4 4 0 8 1 amappl2 88 762 0 697 2 0 2 2 0 8 0 amappl1 80 10702 0 10110 14 0 14 14 0 8 0 amappl 88 6968 0 6818 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 9 0 1 1 0 1 1 0 8 0 uaddrrnd 24 946 0 915 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 946 0 915 1 0 1 1 0 8 0 vmmpekpl 168 9528 0 9478 3 0 3 3 0 8 0 vmmpepl 168 65726 0 63902 94 6 88 93 0 357 3 vmsppl 456 945 0 915 5 0 5 5 0 8 0 rwobjpl 64 23113 0 19395 61 0 61 61 0 8 0 pdppl 4096 1899 0 1830 115 42 73 83 0 8 4 pvpl 32 13446 0 0 109 0 109 109 0 265 0 pmappl 248 945 0 915 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 370 0 48 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff834ccff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 sys/dev/kcov.c:153 __mp_lock(ffffffff8360d908) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360d908) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002a4a0500,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:149 intr_handler(ffff80002a4a0670,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8360d908) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360d908) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a4a0840) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a4a0840) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x742d28b2f060, count: -13 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806de881d0,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806de881b8,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806de881b8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd8064e9d120,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8064e9d120,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd8064e9d120,fffffd8064e9da68,0,0,200,0,1d5c291727e6fa64) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd8064e9d120,fffffd8064e9da68,ffff80002f15d1e0) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd806c524600,ec,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086 soreceive(ffff80000128cd80,ffff800038577d98,ffff800038577d48,0,ffff800038577d88,ffff800038577f0c,514fd0583990071e) at soreceive+0xc73 sys/kern/uipc_socket.c:1015 recvit(ffff80002f15d1e0,6,ffff800038577ee0,0,ffff800038577f90) at recvit+0x40a sys/kern/uipc_syscalls.c:1072 sys_recvmsg(ffff80002f15d1e0,ffff800038578040,ffff800038577f90) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 syscall(ffff800038578040) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038578040) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8e42447d5b0, count: -14