DTu#Shr(v^zWq|!пuy4tqx܂=l(BJfqs@P*|witness: lock order reversal: 1st 0xffff80000137b4c0 sbufrcv (&so->so_rcv.sb_lock) 2nd 0xfffffd806dea0758 inode (&ip->i_lock) lock order [1] sbufrcv (&so->so_rcv.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff83161d3f -> 0xffffffff830d64b2 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{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+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806dea0758,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806dea0740,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806dea0740,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd8076a18cb8,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8076a18cb8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd8076a18cb8,fffffd8064555960,0,0,200,0,d1b8484ddb232545) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd8076a18cb8,fffffd8064555960,ffff8000ffff8cc8) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd805e14e400,ec,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086 soreceive(ffff80000137b3e0,ffff80003c5a2c78,ffff80003c5a2c28,0,ffff80003c5a2c68,ffff80003c5a2dec,cbbbee3942017edb) at soreceive+0xc73 sys/kern/uipc_socket.c:1015 recvit(ffff8000ffff8cc8,6,ffff80003c5a2dc0,0,ffff80003c5a2e70) at recvit+0x40a sys/kern/uipc_syscalls.c:1072 sys_recvmsg(ffff8000ffff8cc8,ffff80003c5a2f20,ffff80003c5a2e70) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 syscall(ffff80003c5a2f20) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5a2f20) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe7bec3faf80, count: -14 ddb{0}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80003c5a2700 rbx 0xfffffd800433c9b0 rdx 0xffff8000000451c0 rcx 0xffff8000ffff8cc8 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80003c5a25e0 r9 0x8080808080808080 r10 0x28f49ba9f84c123f r11 0xde1fe42dd1b78689 r12 0 r13 0xfffffd8003b53f00 r14 0x3 r15 0xffffffff rip 0xffffffff8239cdf5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c5a26f0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=277434 pid=94393 tcnt=3 stat=onproc flags process=1000000 proc=4000000 runpri=24, usrpri=50, slppri=24, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffc290,0xffff8000ffff67d0 process=0xffff80003c654b60 user=0xffff80003c59d000, vmspace=0xfffffd807eb8cab0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 65822 124520 37773 0 2 0 syz-executor 65822 29200 37773 0 3 0x4000080 fsleep syz-executor 51359 68813 71593 0 2 0 syz-executor 51359 336110 71593 0 3 0x4000080 ttyout syz-executor 83630 295870 45588 0 2 0 syz-executor 83630 372940 45588 0 3 0x4000080 fsleep syz-executor 83630 219091 45588 0 2 0x4000000 syz-executor 7585 28293 76496 0 2 0 syz-executor 7585 179069 76496 0 3 0x4000080 fsleep syz-executor 94393 334191 35558 0 2 0x1000000 syz-executor *94393 277434 35558 0 7 0x5000000 syz-executor 94393 81521 35558 0 2 0x5000000 syz-executor 85022 388181 20109 0 3 0x80 nanoslp syz-executor 85022 146846 20109 0 3 0x4000080 wsevent_read syz-executor 85022 512358 20109 0 3 0x4000080 fsleep syz-executor 80295 487883 77542 0 3 0x80 nanoslp syz-executor 80295 282376 77542 0 3 0x4000080 kqsel syz-executor 80295 76912 77542 0 3 0x4000080 fsleep syz-executor 77187 181112 0 0 3 0x14200 acct acct 77542 100726 8013 0 3 0x82 nanoslp syz-executor 35558 80071 8013 0 3 0x82 nanoslp syz-executor 91828 43931 1 0 3 0x80 nanoslp init 74598 168454 0 0 3 0x14280 nfsidl nfsio 55826 147267 0 0 3 0x14280 nfsidl nfsio 32028 328689 0 0 3 0x14280 nfsidl nfsio 12621 184430 0 0 3 0x14280 nfsidl nfsio 47700 10085 0 0 3 0x14280 nfsidl nfsio 21363 393123 0 0 3 0x14280 nfsidl nfsio 19979 293518 0 0 3 0x14280 nfsidl nfsio 89123 457486 0 0 3 0x14280 nfsidl nfsio 31714 218939 0 0 3 0x14280 nfsidl nfsio 21293 30817 0 0 3 0x14280 nfsidl nfsio 14177 153982 0 0 3 0x14280 nfsidl nfsio 49941 124786 0 0 3 0x14280 nfsidl nfsio 19011 422550 0 0 3 0x14280 nfsidl nfsio 1200 429888 0 0 3 0x14280 nfsidl nfsio 47973 188275 0 0 3 0x14280 nfsidl nfsio 28530 289100 0 0 3 0x14280 nfsidl nfsio 2796 403606 0 0 3 0x14280 nfsidl nfsio 34581 227672 0 0 3 0x14280 nfsidl nfsio 24409 346223 0 0 3 0x14280 nfsidl nfsio 93811 32790 0 0 3 0x14280 nfsidl nfsio 57722 172385 0 0 3 0x14200 bored sosplice 32741 204711 8013 0 3 0x2 biowait syz-executor 71593 152882 8013 0 3 0x82 nanoslp syz-executor 37773 186018 8013 0 3 0x82 nanoslp syz-executor 76496 311668 8013 0 3 0x82 nanoslp syz-executor 45588 371410 8013 0 3 0x82 nanoslp syz-executor 20109 457314 8013 0 3 0x82 nanoslp syz-executor 8013 128538 32049 0 3 0x82 kqread syz-executor 32049 195131 89136 0 3 0x10008a sigsusp ksh 89136 393683 46475 0 3 0x98 kqread sshd-session 46475 198734 59031 0 3 0x92 kqread sshd-session 59031 31958 1 0 3 0x88 kqread sshd 72488 469405 83384 74 3 0x1100092 bpf pflogd 83384 33116 1 0 3 0x80 sbwait pflogd 96590 266640 92251 73 3 0x1100090 kqread syslogd 92251 304894 1 0 3 0x100082 sbwait syslogd 71725 139489 1 0 3 0x100080 kqread resolvd 44764 251494 13449 77 3 0x100092 kqread dhcpleased 16671 33295 13449 77 3 0x100092 kqread dhcpleased 13449 194084 1 0 3 0x80 kqread dhcpleased 55235 442318 0 0 3 0x14200 bored smr 93893 56495 0 0 2 0x14200 zerothread 9906 248020 0 0 3 0x14200 aiodoned aiodoned 20403 276871 0 0 3 0x14200 syncer update 53624 65888 0 0 3 0x14200 cleaner cleaner 14405 66243 0 0 3 0x14200 reaper reaper 36333 337874 0 0 3 0x14200 pgdaemon pagedaemon 64413 31176 0 0 3 0x14200 bored viomb 88278 56689 0 0 3 0x40014200 acpi0 acpi0 15791 242517 0 0 7 0x40014200 idle1 72663 287337 0 0 3 0x14200 bored softnet3 75263 307166 0 0 3 0x14200 bored softnet2 50437 52252 0 0 3 0x14200 bored softnet1 15919 464194 0 0 3 0x14200 bored softnet0 34577 166002 0 0 3 0x14200 bored systqmp 41287 433326 0 0 3 0x14200 bored systq 70413 256652 0 0 3 0x14200 tmoslp softclockmp 43327 409031 0 0 3 0x40014200 tmoslp softclock 4821 194983 0 0 3 0x40014200 idle0 1 275507 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 94393 (syz-executor) thread 0xffff8000ffff8cc8 (277434) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff836710f8) #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 (0xffff80000137b4c0) #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 32741 (syz-executor) thread 0xffff8000ffffdbe0 (204711) exclusive rrwlock inode r = 0 (0xfffffd806de0e740) #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 (0xfffffd806deb00b8) #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10233 11053K 11433K 166960K 14225 0 pcb 17 18K 20K 166960K 635 0 rtable 245 9K 10K 166960K 654 0 pf 34 17K 18K 166960K 99 0 ifaddr 41 7K 7K 166960K 90 0 ifgroup 55 2K 2K 166960K 129 0 sysctl 4 1K 1K 166960K 8 0 counters 64 36K 36K 166960K 112 0 ioctlops 0 0K 4K 166960K 1810 0 iov 1 0K 24K 166960K 144 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1418 89K 89K 166960K 2870 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 36 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 266 0 dirhash 12 2K 2K 166960K 48 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 17 61K 89K 166960K 2186 0 sigio 2 0K 0K 166960K 46 0 proc 63 79K 140K 166960K 769 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 425 0 in_multi 91 6K 7K 166960K 243 0 ether_multi 1 0K 0K 166960K 27 0 mrt 1 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 834 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 234 73K 89K 166960K 21825 0 UVM aobj 63 10K 10K 166960K 72 0 pinsyscall 41 82K 101K 166960K 3366 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 150 0 NDP 12 0K 2K 166960K 64 0 temp 78 6900K 6967K 166960K 136799 0 kqueue 15 24K 30K 166960K 363 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 120 173 0 170 1 0 1 1 0 8 0 rtentry 112 188 0 81 4 0 4 4 0 8 0 unpcb 144 2027 0 2006 11 5 6 6 0 8 5 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 808 1089 0 1084 17 9 8 8 0 8 7 arp 120 32 0 14 1 0 1 1 0 8 0 inpcb 376 3277 0 3267 38 29 9 15 0 8 7 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 136 44 0 18 2 0 2 2 0 8 0 pkpcb 40 8 0 8 5 4 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1168 14 0 14 3 2 1 1 0 8 1 pffrag 232 12 0 4 1 0 1 1 0 482 0 pffrnode 88 12 0 4 1 0 1 1 0 8 0 pffrent 40 57 0 49 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 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 165 0 37 1 0 1 1 0 8 0 pfstkey 128 165 0 37 5 0 5 5 0 8 0 pfstate 376 165 0 37 13 0 13 13 0 8 0 pfrule 1344 23 0 17 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 734 0 292 34 6 28 33 0 8 0 art_table 32 737 0 292 5 0 5 5 0 8 0 art_node 16 184 0 87 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 12 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 262 0 252 1 0 1 1 0 8 0 shmpl 112 69 0 9 2 0 2 2 0 8 0 dirhash 1024 41 0 24 3 0 3 3 0 8 0 dino2pl 256 5326 0 3821 95 0 95 95 0 8 0 ffsino 280 5326 0 3821 109 0 109 109 0 8 0 nchpl 144 8435 0 6744 64 0 64 64 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 30810 0 30810 4 3 1 2 0 8 1 percpumem 16 70 0 24 1 0 1 1 0 8 0 kstatmem 264 72 0 48 2 0 2 2 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 9 0 9 4 3 1 1 0 8 1 scxspl 216 24345 0 24344 11 9 2 8 1 8 1 plimitpl 152 526 0 510 1 0 1 1 0 8 0 sigapl 424 2521 0 2450 9 0 9 9 0 8 0 futexpl 64 34697 0 34692 1 0 1 1 0 8 0 knotepl 120 772 0 0 23 0 23 23 0 8 0 kqueuepl 216 777 0 764 6 4 2 5 0 8 1 pipepl 328 359 0 267 8 0 8 8 0 8 0 fdescpl 504 2477 0 2446 5 0 5 5 0 8 0 filepl 152 17715 0 17313 31 15 16 19 0 8 0 lockfpl 104 798 0 796 1 0 1 1 0 8 0 lockfspl 48 299 0 297 1 0 1 1 0 8 0 sessionpl 144 26 0 18 1 0 1 1 0 8 0 pgrppl 48 96 0 80 1 0 1 1 0 8 0 ucredpl 104 3234 0 3221 1 0 1 1 0 8 0 zombiepl 144 2450 0 2450 3 2 1 1 0 8 1 processpl 1168 2521 0 2450 6 0 6 6 0 8 0 procpl 648 5648 0 5566 8 0 8 8 0 8 0 srpgc 96 7 0 7 2 2 0 1 0 8 0 sosppl 168 17 0 17 3 2 1 1 0 8 1 sockpl 688 5586 0 5552 42 30 12 17 0 8 8 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 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 18 0 0 1 0 1 1 0 8 0 mbufpl 256 266 0 0 17 0 17 17 0 8 0 bufpl 280 6535 0 369 441 0 441 441 0 8 0 anonpl 24 298891 0 283036 118 2 116 116 0 185 2 amapchunkpl 152 72024 0 71389 59 24 35 39 0 158 9 amappl16 200 5898 0 5216 65 19 46 46 0 8 0 amappl15 192 4 0 4 2 2 0 1 0 8 0 amappl14 184 120 0 108 1 0 1 1 0 8 0 amappl13 176 7 0 6 1 0 1 1 0 8 0 amappl12 168 3173 0 3143 2 0 2 2 0 8 0 amappl11 160 63 0 49 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 257 0 257 1 1 0 1 0 8 0 amappl8 136 24 0 21 1 0 1 1 0 8 0 amappl7 128 116 0 103 1 0 1 1 0 8 0 amappl6 120 198 0 193 1 0 1 1 0 8 0 amappl5 112 148 0 136 1 0 1 1 0 8 0 amappl4 104 338 0 319 1 0 1 1 0 8 0 amappl3 96 15082 0 14967 4 0 4 4 0 8 0 amappl2 88 718 0 654 2 0 2 2 0 8 0 amappl1 80 14446 0 13901 16 2 14 14 0 8 0 amappl 88 21266 0 21085 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 256 0 256 4 4 0 1 0 8 0 dma64 64 8 0 8 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 71 0 9 2 0 2 2 0 8 0 uaddrrnd 24 2477 0 2446 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2477 0 2446 1 0 1 1 0 8 0 vmmpekpl 168 19562 0 19509 4 1 3 3 0 8 0 vmmpepl 168 151429 0 148920 147 10 137 137 0 357 18 vmsppl 456 2476 0 2446 7 2 5 5 0 8 0 rwobjpl 64 43601 0 36042 125 2 123 123 0 8 0 pdppl 4096 4961 0 4892 107 36 71 83 0 8 2 pvpl 32 26080 0 0 211 0 211 211 0 265 0 pmappl 248 2476 0 2446 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 323 0 62 8 0 8 8 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 witness_checkorder(fffffd806dea0758,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806dea0740,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806dea0740,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd8076a18cb8,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8076a18cb8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd8076a18cb8,fffffd8064555960,0,0,200,0,d1b8484ddb232545) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd8076a18cb8,fffffd8064555960,ffff8000ffff8cc8) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd805e14e400,ec,0) at unp_externalize+0x286 sys/kern/uipc_usrreq.c:1086 soreceive(ffff80000137b3e0,ffff80003c5a2c78,ffff80003c5a2c28,0,ffff80003c5a2c68,ffff80003c5a2dec,cbbbee3942017edb) at soreceive+0xc73 sys/kern/uipc_socket.c:1015 recvit(ffff8000ffff8cc8,6,ffff80003c5a2dc0,0,ffff80003c5a2e70) at recvit+0x40a sys/kern/uipc_syscalls.c:1072 sys_recvmsg(ffff8000ffff8cc8,ffff80003c5a2f20,ffff80003c5a2e70) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:872 syscall(ffff80003c5a2f20) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5a2f20) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe7bec3faf80, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029b5bff0) 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff800029b5bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5