¹j¼õ¬|ÿ ž¨E1\…:¹j¼õ¬|ÿ ž¨E1\…:witness: lock order reversal: 1st 0xffff8000014f18f0 sbufrcv (&so->so_rcv.sb_lock) 2nd 0xfffffd807e2bb810 inode (&ip->i_lock) lock order [1] sbufrcv (&so->so_rcv.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff832f9abd -> 0xffffffff8334590b is missing lock order [2] inode (&ip->i_lock) -> [1] sbufrcv (&so->so_rcv.sb_lock) #0 rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 #1 sblock+0xb6 sys/kern/uipc_socket2.c:536 #2 soreceive+0x27d sys/kern/uipc_socket.c:870 #3 fifo_read+0x117 sys/miscfs/fifofs/fifo_vnops.c:264 #4 VOP_READ+0x101 sys/kern/vfs_vops.c:227 #5 vn_rdwr+0x15b sys/kern/vfs_vnops.c:-1 #6 vndsetcred+0xa1 sys/dev/vnd.c:685 #7 vndioctl+0xdfb sys/dev/vnd.c:486 #8 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #9 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #10 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #11 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #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:438 witness_checkorder(fffffd807e2bb810,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd807e2bb7f8,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd807e2bb7f8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd80727a0cf8,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd80727a0cf8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd80727a0cf8,fffffd805d038290,0,0,200,0,b133b9dadc48fcbe) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd80727a0cf8,fffffd805d038290,ffff8000fffee7e0) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd807e1c6000,33,0) at unp_externalize+0x26f sys/kern/uipc_usrreq.c:1090 soreceive(ffff8000014f1800,ffff80003c426f48,ffff80003c426ef8,0,ffff80003c426f30,ffff80003c4270bc,aee786f1b95c575e) at soreceive+0xc24 sys/kern/uipc_socket.c:1009 recvit(ffff8000fffee7e0,4,ffff80003c427090,0,ffff80003c427140) at recvit+0x40b sys/kern/uipc_syscalls.c:1078 sys_recvmsg(ffff8000fffee7e0,ffff80003c4271f0,ffff80003c427140) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878 syscall(ffff80003c4271f0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4271f0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc0991e9d2f0, count: -14 ddb{0}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80003c4269e0 rbx 0 rdx 0xffff80000145e840 rcx 0xffff8000fffee7e0 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80003c4268c0 r9 0x8080808080808080 r10 0xb914d87837f3f95e r11 0x216a07017472e0e1 r12 0xfffffd8003eff640 r13 0xfffffd80046e8780 r14 0x3 r15 0xffffffff833e2b64 substchar+0xf1da rip 0xffffffff831577a5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4269d0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=315100 pid=25858 tcnt=2 stat=onproc flags process=1000010 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000387e8020,0xffffffff83917b08 process=0xffff80002a3cf508 user=0xffff80003c422000, vmspace=0xfffffd806b98f200 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 25858 256493 647 60929 2 0x1000010 syz-executor *25858 315100 647 60929 7 0x5000010 syz-executor 55675 315608 80798 0 3 0x80 nanoslp syz-executor 55675 164770 80798 0 3 0x4000080 ttyout syz-executor 55675 173109 80798 0 3 0x4000080 ttyout syz-executor 55675 448874 80798 0 3 0x4000080 fsleep syz-executor 13421 156302 83271 0 3 0x80 nanoslp syz-executor 13421 294715 83271 0 3 0x4000080 ttyout syz-executor 13421 489444 83271 0 3 0x4000080 fsleep syz-executor 99272 478888 46368 0 3 0x80 nanoslp syz-executor 99272 302434 46368 0 3 0x4000080 ttyin syz-executor 99272 277404 46368 0 3 0x4000080 fsleep syz-executor 37149 453974 11575 0 4 0x82000 syz-executor 37149 344839 11575 0 3 0x4082000 biowait syz-executor 37149 396237 11575 0 3 0x4082000 fltagain2 syz-executor 37149 41448 11575 0 4 0x4082000 syz-executor 37149 29079 11575 0 3 0x4002000 suspend syz-executor 46368 337164 88928 0 3 0x82 nanoslp syz-executor 99488 41544 88928 0 3 0x2 biowait syz-executor 83271 428729 88928 0 3 0x82 nanoslp syz-executor 7464 44223 0 0 3 0x14200 acct acct 20922 501294 0 0 3 0x14200 bored sosplice 6889 374764 88928 0 3 0x82 nanoslp syz-executor 11575 360042 88928 0 3 0x82 nanoslp syz-executor 80798 70788 88928 0 3 0x82 nanoslp syz-executor 647 442292 88928 0 3 0x82 nanoslp syz-executor 96646 463682 88928 0 3 0x82 wait syz-executor 88928 344130 50496 0 3 0x82 kqread syz-executor 50496 257452 68186 0 3 0x10008a sigsusp ksh 68186 253193 832 0 3 0x98 kqread sshd-session 832 364155 60102 0 3 0x92 kqread sshd-session 8982 320750 1 0 3 0x100083 ttyin getty 60102 294618 1 0 3 0x88 kqread sshd 89058 203058 59555 74 3 0x1100092 bpf pflogd 59555 483297 1 0 3 0x80 sbwait pflogd 78740 399361 62008 73 3 0x1100090 kqread syslogd 62008 325356 1 0 3 0x100082 sbwait syslogd 82934 130990 1 0 3 0x100080 kqread resolvd 87242 233416 41905 77 3 0x100092 kqread dhcpleased 27701 215066 41905 77 3 0x100092 kqread dhcpleased 41905 84273 1 0 3 0x80 kqread dhcpleased 39491 512202 0 0 3 0x14200 bored smr 75177 187536 0 0 3 0x14200 pgzero zerothread 88539 105012 0 0 3 0x14200 aiodoned aiodoned 1373 319356 0 0 3 0x14200 syncer update 55604 444960 0 0 3 0x14200 cleaner cleaner 90216 303140 0 0 3 0x14200 reaper reaper 12813 55497 0 0 3 0x14200 pgdaemon pagedaemon 12494 490721 0 0 3 0x14200 bored viomb 46958 522686 0 0 3 0x40014200 acpi0 acpi0 45593 238696 0 0 7 0x40014200 idle1 34273 25889 0 0 3 0x14200 bored softnet1 20048 160449 0 0 3 0x14200 bored softnet0 86713 460666 0 0 3 0x14200 bored systqmp 74599 138222 0 0 3 0x14200 bored systq 2542 49507 0 0 3 0x14200 tmoslp softclockmp 47951 267906 0 0 3 0x40014200 tmoslp softclock 40461 297941 0 0 3 0x40014200 idle0 1 9352 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 25858 (syz-executor) thread 0xffff8000fffee7e0 (315100) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83915fc0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 unp_externalize+0x155 sys/kern/uipc_usrreq.c:-1 #2 soreceive+0xc24 sys/kern/uipc_socket.c:1009 #3 recvit+0x40b sys/kern/uipc_syscalls.c:1078 #4 sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #6 Xsyscall+0x128 exclusive rwlock sbufrcv r = 0 (0xffff8000014f18f0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 sblock+0xb6 sys/kern/uipc_socket2.c:536 #3 soreceive+0x27d sys/kern/uipc_socket.c:870 #4 recvit+0x40b sys/kern/uipc_syscalls.c:1078 #5 sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #7 Xsyscall+0x128 Process 37149 (syz-executor) thread 0xffff80003c47fa20 (344839) exclusive rrwlock inode r = 0 (0xfffffd807e2bbf00) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 Process 99488 (syz-executor) thread 0xffff80003c47f4f0 (41544) exclusive rrwlock inode r = 0 (0xfffffd806e05a1d0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807e41d7c8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10237 11159K 12707K 166960K 14211 0 pcb 17 14K 16K 166960K 377 0 rtable 196 11K 12K 166960K 465 0 pf 34 17K 81K 166960K 180 0 ifaddr 33 6K 7K 166960K 126 0 ifgroup 47 2K 2K 166960K 199 0 sysctl 4 1K 9K 166960K 22 0 counters 64 36K 37K 166960K 322 0 ioctlops 0 0K 4K 166960K 1897 0 iov 0 0K 48K 166960K 350 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1489 94K 94K 166960K 3082 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 616K 616K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 11 0K 1K 166960K 57 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 1617 0 sigio 0 0K 0K 166960K 23 0 proc 76 131K 180K 166960K 818 0 subproc 72 4K 4K 166960K 109 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 259 0 in_multi 68 5K 7K 166960K 189 0 ether_multi 1 0K 0K 166960K 13 0 mrt 2 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 283 1261K 1261K 166960K 283 0 exec 0 0K 1K 166960K 782 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 256 168K 181K 166960K 15842 0 UVM aobj 42 6K 6K 166960K 44 0 pinsyscall 42 84K 106K 166960K 2806 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 84 0 NDP 10 0K 2K 166960K 92 0 temp 80 8656K 8912K 166960K 90295 0 kqueue 15 24K 30K 166960K 383 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 188 0 185 3 2 1 3 0 8 0 rtentry 176 155 0 83 5 0 5 5 0 8 0 unpcb 144 1040 0 1021 8 3 5 5 0 8 4 syncache 336 9 0 9 3 3 0 1 0 8 0 tcpqe 32 5 0 5 2 2 0 1 0 8 0 tcpcb 736 883 0 873 21 12 9 10 0 8 8 arp 136 17 0 6 1 0 1 1 0 8 0 inpcb 328 1880 0 1866 17 7 10 10 0 8 7 nd6 152 28 0 14 1 0 1 1 0 8 0 pkpcb 40 14 0 14 2 1 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1192 116 0 116 3 2 1 1 0 8 1 pppxif 1504 4 0 4 3 3 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 8 0 3 1 0 1 1 0 482 0 pffrnode 88 8 0 3 1 0 1 1 0 8 0 pffrent 40 20 0 15 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 2 0 2 2 2 0 1 0 8 0 pfstitem 24 77 0 23 1 0 1 1 0 8 0 pfstkey 128 80 0 26 2 0 2 2 0 8 0 pfstate 384 79 0 25 6 0 6 6 0 8 0 pfrule 1344 24 0 18 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 755 0 445 31 10 21 28 0 8 0 art_table 40 759 0 445 5 0 5 5 0 8 0 art_node 32 155 0 94 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 12 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 51 0 42 1 0 1 1 0 8 0 shmpl 112 41 0 2 2 0 2 2 0 8 0 dirhash 1024 46 0 29 3 0 3 3 0 8 0 dino2pl 256 4643 0 3135 96 0 96 96 0 8 0 ffsino 296 4643 0 3135 117 0 117 117 0 8 0 nchpl 144 6802 0 5097 64 0 64 64 0 8 0 rtmask 32 15 0 15 3 2 1 1 0 8 1 uvmvnodes 80 4566 0 0 94 0 94 94 0 8 0 vnodes 216 4566 0 0 254 0 254 254 0 8 0 namei 1024 25243 0 25243 3 2 1 2 0 8 1 percpumem 16 176 0 129 1 0 1 1 0 8 0 kstatmem 264 138 0 116 2 0 2 2 0 8 0 scsiplug 72 11 0 11 4 3 1 1 0 8 1 scxspl 216 39843 0 39841 16 15 1 8 1 8 0 plimitpl 152 601 0 582 1 0 1 1 0 8 0 sigapl 424 1926 0 1877 9 2 7 8 0 8 0 knotepl 120 834 0 0 25 0 25 25 0 8 0 kqueuepl 224 807 0 796 10 5 5 5 0 8 4 pipepl 344 445 0 417 12 8 4 9 0 8 1 fdescpl 528 1880 0 1849 3 0 3 3 0 8 0 filepl 160 14625 0 14381 37 17 20 24 0 8 6 lockfpl 104 905 0 903 2 0 2 2 0 8 1 lockfspl 48 318 0 316 1 0 1 1 0 8 0 sessionpl 144 30 0 21 1 0 1 1 0 8 0 pgrppl 48 66 0 49 1 0 1 1 0 8 0 ucredpl 104 3044 0 3030 1 0 1 1 0 8 0 zombiepl 144 1915 0 1913 3 2 1 1 0 8 0 processpl 1232 1926 0 1877 7 2 5 6 0 8 1 procpl 664 4311 0 4250 8 1 7 8 0 8 1 sosppl 168 7 0 7 3 2 1 1 0 8 1 sockpl 752 3166 0 3130 34 19 15 21 0 8 8 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k 2048 49 0 0 7 0 7 7 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 291 0 0 18 0 18 18 0 8 0 bufpl 280 17443 0 11300 440 1 439 440 0 8 0 anonpl 32 12460 0 0 101 0 101 101 0 246 0 amapchunkpl 152 54817 0 54233 41 11 30 32 0 158 4 amappl16 200 7377 0 7172 43 26 17 23 0 8 6 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 124 0 112 1 0 1 1 0 8 0 amappl13 176 10 0 10 2 1 1 1 0 8 1 amappl12 168 2587 0 2556 3 1 2 2 0 8 0 amappl11 160 65 0 51 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 1 0 1 0 8 0 amappl9 144 257 0 257 1 1 0 1 0 8 0 amappl8 136 25 0 22 1 0 1 1 0 8 0 amappl7 128 121 0 108 1 0 1 1 0 8 0 amappl6 120 227 0 224 1 0 1 1 0 8 0 amappl5 112 145 0 135 1 0 1 1 0 8 0 amappl4 104 317 0 297 1 0 1 1 0 8 0 amappl3 96 9593 0 9487 3 0 3 3 0 8 0 amappl2 88 2149 0 2068 2 0 2 2 0 8 0 amappl1 80 15274 0 14671 17 2 15 15 0 8 1 amappl 88 14841 0 14659 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 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 0 1 1 0 8 1 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 257 0 257 3 2 1 1 0 8 1 dma64 64 7 0 7 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 43 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1880 0 1849 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1880 0 1849 1 0 1 1 0 8 0 vmmpekpl 168 16387 0 16340 3 0 3 3 0 8 0 vmmpepl 168 123675 0 121480 122 22 100 107 0 357 1 vmsppl 488 1879 0 1849 7 2 5 5 0 8 0 rwobjpl 80 38684 0 32939 121 1 120 120 0 8 1 pdppl 4096 3768 0 3698 110 36 74 86 0 8 4 pvpl 32 20746 0 0 168 0 168 168 0 265 0 pmappl 256 1879 0 1849 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 322 0 66 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:438 witness_checkorder(fffffd807e2bb810,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 rw_do_enter_write(fffffd807e2bb7f8,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 rrw_enter(fffffd807e2bb7f8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 VOP_LOCK(fffffd80727a0cf8,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 vn_lock(fffffd80727a0cf8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_getcwd_common(fffffd80727a0cf8,fffffd805d038290,0,0,200,0,b133b9dadc48fcbe) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287 vn_isunder(fffffd80727a0cf8,fffffd805d038290,ffff8000fffee7e0) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694 unp_externalize(fffffd807e1c6000,33,0) at unp_externalize+0x26f sys/kern/uipc_usrreq.c:1090 soreceive(ffff8000014f1800,ffff80003c426f48,ffff80003c426ef8,0,ffff80003c426f30,ffff80003c4270bc,aee786f1b95c575e) at soreceive+0xc24 sys/kern/uipc_socket.c:1009 recvit(ffff8000fffee7e0,4,ffff80003c427090,0,ffff80003c427140) at recvit+0x40b sys/kern/uipc_syscalls.c:1078 sys_recvmsg(ffff8000fffee7e0,ffff80003c4271f0,ffff80003c427140) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878 syscall(ffff80003c4271f0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4271f0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc0991e9d2f0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5