panic: pool_do_get: mbufpl free list modified: page 0xfffffd8064f39000; item addr 0xfffffd8064f39d00; offset 0x0=0x6175300000000000 != 0x6175308873a129dd Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *132188 36909 0 0 0x4000000 1K syz-executor.1 433256 47467 0 0x2 0 0 syz-fuzzer db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8249d622) at panic+0x164 sys/kern/subr_prf.c:218 pool_do_get(ffffffff828f7de8,2,ffff800020ecbe78) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828f7de8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,1) at m_get+0x4c sys/kern/uipc_mbuf.c:250 mld6_sendpkt(ffff800000b39f00,83,0) at mld6_sendpkt+0xaf sys/netinet6/mld6.c:410 mld6_start_listening(ffff800000b39f00) at mld6_start_listening+0x8e sys/netinet6/mld6.c:136 in6_addmulti(ffff800020ecc290,ffff800000af7000,ffff800020ecc318) at in6_addmulti+0x25e sys/netinet6/in6.c:1073 in6_update_ifa(ffff800000af7000,ffff800020ecc380,0) at in6_update_ifa+0x1530 in6_joingroup sys/netinet6/in6.c:1142 [inline] in6_update_ifa(ffff800000af7000,ffff800020ecc380,0) at in6_update_ifa+0x1530 sys/netinet6/in6.c:764 in6_ifattach_linklocal(ffff800000af7000,0) at in6_ifattach_linklocal+0x2a2 sys/netinet6/in6_ifattach.c:281 in6_ifattach(ffff800000af7000) at in6_ifattach+0x1b8 sys/netinet6/in6_ifattach.c:401 ifnewlladdr(ffff800000af7000) at ifnewlladdr+0x119 sys/net/if.c:3019 ifioctl(fffffd80679557d8,8020691f,ffff800020ecc640,ffff800022f4d688) at ifioctl+0x1b3e sys/net/if.c:2095 soo_ioctl(fffffd806cac7140,8020691f,ffff800020ecc640,ffff800022f4d688) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 end trace frame: 0xffff800020ecc740, count: 0 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic pool_do_get: mbufpl free list modified: page 0xfffffd8064f39000; item addr 0xfffffd8064f39d00; offset 0x0=0x6175300000000000 != 0x6175308873a129dd ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8249d622) at panic+0x164 sys/kern/subr_prf.c:218 pool_do_get(ffffffff828f7de8,2,ffff800020ecbe78) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828f7de8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,1) at m_get+0x4c sys/kern/uipc_mbuf.c:250 mld6_sendpkt(ffff800000b39f00,83,0) at mld6_sendpkt+0xaf sys/netinet6/mld6.c:410 mld6_start_listening(ffff800000b39f00) at mld6_start_listening+0x8e sys/netinet6/mld6.c:136 in6_addmulti(ffff800020ecc290,ffff800000af7000,ffff800020ecc318) at in6_addmulti+0x25e sys/netinet6/in6.c:1073 in6_update_ifa(ffff800000af7000,ffff800020ecc380,0) at in6_update_ifa+0x1530 in6_joingroup sys/netinet6/in6.c:1142 [inline] in6_update_ifa(ffff800000af7000,ffff800020ecc380,0) at in6_update_ifa+0x1530 sys/netinet6/in6.c:764 in6_ifattach_linklocal(ffff800000af7000,0) at in6_ifattach_linklocal+0x2a2 sys/netinet6/in6_ifattach.c:281 in6_ifattach(ffff800000af7000) at in6_ifattach+0x1b8 sys/netinet6/in6_ifattach.c:401 ifnewlladdr(ffff800000af7000) at ifnewlladdr+0x119 sys/net/if.c:3019 ifioctl(fffffd80679557d8,8020691f,ffff800020ecc640,ffff800022f4d688) at ifioctl+0x1b3e sys/net/if.c:2095 soo_ioctl(fffffd806cac7140,8020691f,ffff800020ecc640,ffff800022f4d688) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800022f4d688,ffff800020ecc758,ffff800020ecc7a0) at sys_ioctl+0x4a5 syscall(ffff800020ecc820) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ecc820) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3e428495a30, count: -17 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020ecbcc0 rbx 0xffff800020ecbd70 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffff800020ecbc80 r9 0xffffffff81c9883f kprintf+0x16f r10 0x1 r11 0x826fa2b4063449c0 r12 0x3000000008 r13 0xffff800020ecbcd0 r14 0x100 r15 0x1 rip 0xffffffff81c6ddc8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020ecbcb0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=132188 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800022f4cf20,0xffffffff828ed090 process=0xffff800020ea3b98 user=0xffff800020ec7000, vmspace=0xfffffd8067a6a740 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 36909 365373 98657 0 2 0 syz-executor.1 *36909 132188 98657 0 7 0x4000000 syz-executor.1 16367 346613 51758 0 2 0 syz-executor.0 51758 412578 47467 0 3 0x82 nanosleep syz-executor.0 41851 421293 0 0 3 0x14280 nfsidl nfsio 60031 264494 0 0 3 0x14280 nfsidl nfsio 7805 427689 0 0 3 0x14280 nfsidl nfsio 89643 194127 0 0 3 0x14280 nfsidl nfsio 86899 160631 0 0 3 0x14280 nfsidl nfsio 25203 215944 0 0 3 0x14280 nfsidl nfsio 59480 412346 0 0 3 0x14280 nfsidl nfsio 63987 90140 0 0 3 0x14280 nfsidl nfsio 75639 257912 0 0 3 0x14280 nfsidl nfsio 50521 31447 0 0 3 0x14280 nfsidl nfsio 67588 297749 0 0 3 0x14280 nfsidl nfsio 75249 440421 0 0 3 0x14280 nfsidl nfsio 61024 413927 0 0 3 0x14280 nfsidl nfsio 98967 291024 0 0 3 0x14280 nfsidl nfsio 96745 422741 0 0 3 0x14280 nfsidl nfsio 25899 348858 0 0 3 0x14280 nfsidl nfsio 30737 161991 0 0 3 0x14280 nfsidl nfsio 1294 256428 0 0 3 0x14280 nfsidl nfsio 45547 67391 0 0 3 0x14280 nfsidl nfsio 99887 495468 0 0 3 0x14280 nfsidl nfsio 77213 275696 0 0 3 0x14200 bored sosplice 37096 481652 0 0 3 0x14200 acct acct 98657 196385 47467 0 3 0x82 nanosleep syz-executor.1 47467 433256 27221 0 7 0x2 syz-fuzzer 47467 377511 27221 0 3 0x4000082 nanosleep syz-fuzzer 47467 464082 27221 0 3 0x4000082 thrsleep syz-fuzzer 47467 232949 27221 0 3 0x4000082 thrsleep syz-fuzzer 47467 481975 27221 0 3 0x4000082 thrsleep syz-fuzzer 47467 108107 27221 0 3 0x4000082 thrsleep syz-fuzzer 47467 361466 27221 0 3 0x4000082 kqread syz-fuzzer 47467 515922 27221 0 3 0x4000082 nanosleep syz-fuzzer 27221 41276 69359 0 3 0x10008a pause ksh 69359 163653 7857 0 3 0x92 select sshd 94059 192395 1 0 3 0x100083 ttyin getty 7857 169604 1 0 3 0x80 select sshd 13994 417603 75613 74 3 0x100092 bpf pflogd 75613 468836 1 0 3 0x80 netio pflogd 66786 216862 92820 73 3 0x100090 kqread syslogd 92820 330857 1 0 3 0x100082 netio syslogd 41985 189925 1 77 3 0x100090 poll dhclient 92152 225066 1 0 3 0x80 poll dhclient 68049 326896 0 0 3 0x14200 bored smr 1480 517647 0 0 2 0x14200 zerothread 29704 455248 0 0 3 0x14200 aiodoned aiodoned 73934 469288 0 0 3 0x14200 syncer update 39528 360780 0 0 3 0x14200 cleaner cleaner 14756 329901 0 0 3 0x14200 reaper reaper 92239 234406 0 0 3 0x14200 pgdaemon pagedaemon 76396 388509 0 0 3 0x14200 bored crynlk 91455 174574 0 0 3 0x14200 bored crypto 19695 447270 0 0 3 0x40014200 acpi0 acpi0 97163 411348 0 0 3 0x40014200 idle1 72251 228618 0 0 3 0x14200 bored softnet 78973 339245 0 0 2 0x14200 systqmp 43063 297608 0 0 3 0x14200 bored systq 56628 74708 0 0 3 0x40014200 bored softclock 50562 300305 0 0 3 0x40014200 idle0 1 360640 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex mbufpl r = 0 (0xffffffff828f7df8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pool_get+0xbf sys/kern/subr_pool.c:578 #4 m_get+0x4c sys/kern/uipc_mbuf.c:250 #5 mld6_sendpkt+0xaf sys/netinet6/mld6.c:410 #6 mld6_start_listening+0x8e sys/netinet6/mld6.c:136 #7 in6_addmulti+0x25e sys/netinet6/in6.c:1073 #8 in6_update_ifa+0x1530 in6_joingroup sys/netinet6/in6.c:1142 [inline] #8 in6_update_ifa+0x1530 sys/netinet6/in6.c:764 #9 in6_ifattach_linklocal+0x2a2 sys/netinet6/in6_ifattach.c:281 #10 in6_ifattach+0x1b8 sys/netinet6/in6_ifattach.c:401 #11 ifnewlladdr+0x119 sys/net/if.c:3019 #12 ifioctl+0x1b3e sys/net/if.c:2095 #13 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #14 sys_ioctl+0x4a5 #15 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #15 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #16 Xsyscall+0x128 Process 36909 (syz-executor.1) thread 0xffff800022f4d688 (132188) exclusive rwlock netlock r = 0 (0xffffffff826f2960) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 ifioctl+0x117b sys/net/if.c:2078 #2 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #3 sys_ioctl+0x4a5 #4 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828c5c88) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 soo_ioctl+0x26a sys/kern/sys_socket.c:138 #2 sys_ioctl+0x4a5 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 exclusive mutex mbufpl r = 0 (0xffffffff828f7df8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pool_get+0xbf sys/kern/subr_pool.c:578 #4 m_get+0x4c sys/kern/uipc_mbuf.c:250 #5 mld6_sendpkt+0xaf sys/netinet6/mld6.c:410 #6 mld6_start_listening+0x8e sys/netinet6/mld6.c:136 #7 in6_addmulti+0x25e sys/netinet6/in6.c:1073 #8 in6_update_ifa+0x1530 in6_joingroup sys/netinet6/in6.c:1142 [inline] #8 in6_update_ifa+0x1530 sys/netinet6/in6.c:764 #9 in6_ifattach_linklocal+0x2a2 sys/netinet6/in6_ifattach.c:281 #10 in6_ifattach+0x1b8 sys/netinet6/in6_ifattach.c:401 #11 ifnewlladdr+0x119 sys/net/if.c:3019 #12 ifioctl+0x1b3e sys/net/if.c:2095 #13 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #14 sys_ioctl+0x4a5 #15 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #15 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #16 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9524 6417K 6805K 78643K 11789 0 pcb 13 8K 8K 78643K 84 0 rtable 98 7K 10K 78643K 645 0 ifaddr 84 16K 17K 78643K 217 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 69 0 ioctlops 0 0K 4K 78643K 1608 0 iov 0 0K 16K 78643K 52 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1813 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 10 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 141 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 808 0 sigio 0 0K 0K 78643K 9 0 proc 62 63K 95K 78643K 645 0 subproc 32 2K 2K 78643K 85 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 61 0 in_multi 44 2K 3K 78643K 163 0 ether_multi 1 0K 0K 78643K 19 0 mrt 0 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 294 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 181 59K 59K 78643K 3936 0 UVM aobj 28 6K 6K 78643K 38 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 71 0 NDP 13 0K 0K 78643K 41 0 temp 142 3886K 3950K 78643K 6346 0 kqueue 3 4K 12K 78643K 32 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 15 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 44 0 41 1 0 1 1 0 8 0 rtentry 112 112 0 82 2 0 2 2 0 8 0 unpcb 120 796 0 786 1 0 1 1 0 8 0 syncache 272 12 0 12 5 5 0 1 0 8 0 tcpqe 32 75 0 75 2 2 0 1 0 8 0 tcpcb 592 236 0 231 4 3 1 2 0 8 0 inpcb 296 1188 0 1179 7 5 2 2 0 8 1 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 6 0 6 1 1 0 1 0 8 0 nd6 48 34 0 30 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 6 0 6 2 2 0 1 0 482 0 pffrnode 88 6 0 6 2 2 0 1 0 8 0 pffrent 40 59 0 59 3 3 0 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 78 0 69 4 3 1 2 0 8 0 pftag 88 4 0 3 3 2 1 1 0 8 0 pfqueue 264 1 0 1 1 1 0 1 0 8 0 pfstitem 24 17 0 15 1 0 1 1 0 8 0 pfstkey 112 21 0 19 1 0 1 1 0 8 0 pfstate 328 19 0 17 2 1 1 2 0 8 0 pfrule 1360 41 0 30 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 575 0 408 18 5 13 17 0 8 2 art_table 32 576 0 408 3 1 2 3 0 8 0 art_node 16 111 0 82 1 0 1 1 0 8 0 sysvmsgpl 40 42 0 9 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 130 0 120 1 0 1 1 0 8 0 shmpl 112 35 0 10 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2484 0 1086 88 0 88 88 0 8 0 ffsino 272 2484 0 1086 94 0 94 94 0 8 0 nchpl 144 3806 0 2211 60 0 60 60 0 8 0 uvmvnodes 72 2920 0 0 54 0 54 54 0 8 0 vnodes 208 2920 0 0 154 0 154 154 0 8 0 namei 1024 12495 0 12495 5 4 1 1 0 8 1 percpumem 16 45 0 13 1 0 1 1 0 8 0 vcpupl 1984 9 0 0 2 0 2 2 0 8 0 vmpool 560 10 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 26 0 19 3 2 1 1 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 200 10297 0 10297 10 9 1 7 0 8 1 plimitpl 152 62 0 54 1 0 1 1 0 8 0 sigapl 424 1036 0 982 8 1 7 7 0 8 1 futexpl 56 11202 0 11202 5 4 1 1 0 8 1 knotepl 112 129 0 109 1 0 1 1 0 8 0 kqueuepl 152 76 0 73 1 0 1 1 0 8 0 pipepl 304 160 0 149 6 4 2 2 0 8 1 fdescpl 496 999 0 982 3 0 3 3 0 8 0 filepl 152 7361 0 7255 5 0 5 5 0 8 0 lockfpl 104 1605 0 1604 1 0 1 1 0 8 0 lockfspl 48 457 0 456 1 0 1 1 0 8 0 sessionpl 120 21 0 10 1 0 1 1 0 8 0 pgrppl 48 37 0 26 1 0 1 1 0 8 0 ucredpl 96 2062 0 2053 1 0 1 1 0 8 0 zombiepl 144 982 0 982 1 0 1 1 0 8 1 processpl 1008 1036 0 982 7 0 7 7 0 8 0 procpl 632 2974 0 2912 11 5 6 6 0 8 0 sosppl 144 12 0 12 5 4 1 1 0 8 1 sockpl 400 2037 0 2015 15 12 3 4 0 8 0 mcl64k 65536 15 0 0 2 0 2 2 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 190 0 0 21 0 21 21 0 8 0 mtagpl 96 30 0 0 1 0 1 1 0 8 0 mbufpl 256 433 0 0 23 0 23 23 0 8 0 mbufpl: pool(0xffffffff828f7de8:mbufpl): free list modified: page 0xfffffd8064f39000; item ordinal 0; addr 0xfffffd8064f39d00 (p 0xfffffd8067b53000); offset 0x0=0x6175300000000000 bufpl 280 4336 0 126 301 0 301 301 0 8 0 anonpl 16 130524 0 112485 121 28 93 93 0 124 13 amapchunkpl 152 7058 0 6736 35 21 14 27 0 158 0 amappl16 192 4778 0 3879 77 23 54 57 0 8 8 amappl15 184 549 0 546 1 0 1 1 0 8 0 amappl14 176 9 0 7 1 0 1 1 0 8 0 amappl13 168 50 0 47 1 0 1 1 0 8 0 amappl12 160 181 0 176 1 0 1 1 0 8 0 amappl11 152 68 0 53 1 0 1 1 0 8 0 amappl10 144 94 0 90 1 0 1 1 0 8 0 amappl9 136 392 0 390 1 0 1 1 0 8 0 amappl8 128 468 0 419 2 0 2 2 0 8 0 amappl7 120 133 0 122 1 0 1 1 0 8 0 amappl6 112 38 0 29 1 0 1 1 0 8 0 amappl5 104 1044 0 1026 1 0 1 1 0 8 0 amappl4 96 540 0 513 1 0 1 1 0 8 0 amappl3 88 138 0 130 1 0 1 1 0 8 0 amappl2 80 7368 0 7297 2 0 2 2 0 8 0 amappl1 72 41021 0 40576 24 14 10 18 0 8 0 amappl 80 3314 0 3224 3 0 3 3 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 37 0 10 1 0 1 1 0 8 0 uaddrrnd 24 1009 0 983 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1009 0 983 1 0 1 1 0 8 0 vmmpekpl 168 11507 0 11467 2 0 2 2 0 8 0 vmmpepl 168 139402 0 137184 207 78 129 133 0 357 29 vmsppl 368 1008 0 983 3 0 3 3 0 8 0 pdppl 4096 2025 0 1975 7 0 7 7 0 8 0 pvpl 32 371460 0 350627 273 60 213 215 0 265 31 pmappl 232 1008 0 983 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 294 0 29 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff827b8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828c5a80) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c5a80) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff828c5a80) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c5a80) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_map_inentry(ffff8000ffffe288,ffff8000ffffe2e8,c00003b6e8,ffffffff8242b3c8,ffffffff81bdb0d0,6b) at uvm_map_inentry+0xbe sys/uvm/uvm_map.c:1890 usertrap(ffff800020e2a290) at usertrap+0xed sys/arch/amd64/amd64/trap.c:346 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xc00003b700, count: 5 ddb{0}> trace x86_ipi_db(ffffffff827b8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828c5a80) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c5a80) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff828c5a80) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c5a80) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_map_inentry(ffff8000ffffe288,ffff8000ffffe2e8,c00003b6e8,ffffffff8242b3c8,ffffffff81bdb0d0,6b) at uvm_map_inentry+0xbe sys/uvm/uvm_map.c:1890 usertrap(ffff800020e2a290) at usertrap+0xed sys/arch/amd64/amd64/trap.c:346 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xc00003b700, count: -10 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8249d622) at panic+0x164 sys/kern/subr_prf.c:218 pool_do_get(ffffffff828f7de8,2,ffff800020ecbe78) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828f7de8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,1) at m_get+0x4c sys/kern/uipc_mbuf.c:250 mld6_sendpkt(ffff800000b39f00,83,0) at mld6_sendpkt+0xaf sys/netinet6/mld6.c:410 mld6_start_listening(ffff800000b39f00) at mld6_start_listening+0x8e sys/netinet6/mld6.c:136 in6_addmulti(ffff800020ecc290,ffff800000af7000,ffff800020ecc318) at in6_addmulti+0x25e sys/netinet6/in6.c:1073 in6_update_ifa(ffff800000af7000,ffff800020ecc380,0) at in6_update_ifa+0x1530 in6_joingroup sys/netinet6/in6.c:1142 [inline] in6_update_ifa(ffff800000af7000,ffff800020ecc380,0) at in6_update_ifa+0x1530 sys/netinet6/in6.c:764 in6_ifattach_linklocal(ffff800000af7000,0) at in6_ifattach_linklocal+0x2a2 sys/netinet6/in6_ifattach.c:281 in6_ifattach(ffff800000af7000) at in6_ifattach+0x1b8 sys/netinet6/in6_ifattach.c:401 ifnewlladdr(ffff800000af7000) at ifnewlladdr+0x119 sys/net/if.c:3019 ifioctl(fffffd80679557d8,8020691f,ffff800020ecc640,ffff800022f4d688) at ifioctl+0x1b3e sys/net/if.c:2095 soo_ioctl(fffffd806cac7140,8020691f,ffff800020ecc640,ffff800022f4d688) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 end trace frame: 0xffff800020ecc740, count: 0 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8249d622) at panic+0x164 sys/kern/subr_prf.c:218 pool_do_get(ffffffff828f7de8,2,ffff800020ecbe78) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828f7de8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,1) at m_get+0x4c sys/kern/uipc_mbuf.c:250 mld6_sendpkt(ffff800000b39f00,83,0) at mld6_sendpkt+0xaf sys/netinet6/mld6.c:410 mld6_start_listening(ffff800000b39f00) at mld6_start_listening+0x8e sys/netinet6/mld6.c:136 in6_addmulti(ffff800020ecc290,ffff800000af7000,ffff800020ecc318) at in6_addmulti+0x25e sys/netinet6/in6.c:1073 in6_update_ifa(ffff800000af7000,ffff800020ecc380,0) at in6_update_ifa+0x1530 in6_joingroup sys/netinet6/in6.c:1142 [inline] in6_update_ifa(ffff800000af7000,ffff800020ecc380,0) at in6_update_ifa+0x1530 sys/netinet6/in6.c:764 in6_ifattach_linklocal(ffff800000af7000,0) at in6_ifattach_linklocal+0x2a2 sys/netinet6/in6_ifattach.c:281 in6_ifattach(ffff800000af7000) at in6_ifattach+0x1b8 sys/netinet6/in6_ifattach.c:401 ifnewlladdr(ffff800000af7000) at ifnewlladdr+0x119 sys/net/if.c:3019 ifioctl(fffffd80679557d8,8020691f,ffff800020ecc640,ffff800022f4d688) at ifioctl+0x1b3e sys/net/if.c:2095 soo_ioctl(fffffd806cac7140,8020691f,ffff800020ecc640,ffff800022f4d688) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800022f4d688,ffff800020ecc758,ffff800020ecc7a0) at sys_ioctl+0x4a5 syscall(ffff800020ecc820) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ecc820) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3e428495a30, count: -17