panic: pool_do_get: mbufpl free list modified: page 0xfffffd806d5e9000; item addr 0xfffffd806d5e9500; offset 0x0=0x0 != 0x98254b499939c59 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *167475 66862 0 0 0 1K syz-executor.0 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82479155) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828c78a0,2,ffff800020edb5a8) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828c78a0,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 rt_ifa_del(ffff800000a9f700,800100,ffff800000a9f740,0) at rt_ifa_del+0xa1 sys/net/route.c:1163 in6_unlink_ifa(ffff800000a9f700,ffff800000ac3000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac3000,ffff800020edbbb0,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff800020edbbb0,ffff800000ac3000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd806ead3e18,8080691a,ffff800020edbbb0,ffff800020dec9c8) at ifioctl+0xe70 sys/net/if.c:2288 soo_ioctl(fffffd806cf56c88,8080691a,ffff800020edbbb0,ffff800020dec9c8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020dec9c8,ffff800020edbcc8,ffff800020edbd10) at sys_ioctl+0x4a5 syscall(ffff800020edbd90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020edbd90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff5560, count: 1 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 0xfffffd806d5e9000; item addr 0xfffffd806d5e9500; offset 0x0=0x0 != 0x98254b499939c59 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82479155) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828c78a0,2,ffff800020edb5a8) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828c78a0,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 rt_ifa_del(ffff800000a9f700,800100,ffff800000a9f740,0) at rt_ifa_del+0xa1 sys/net/route.c:1163 in6_unlink_ifa(ffff800000a9f700,ffff800000ac3000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac3000,ffff800020edbbb0,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff800020edbbb0,ffff800000ac3000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd806ead3e18,8080691a,ffff800020edbbb0,ffff800020dec9c8) at ifioctl+0xe70 sys/net/if.c:2288 soo_ioctl(fffffd806cf56c88,8080691a,ffff800020edbbb0,ffff800020dec9c8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020dec9c8,ffff800020edbcc8,ffff800020edbd10) at sys_ioctl+0x4a5 syscall(ffff800020edbd90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020edbd90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff5560, count: -14 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020edb3f0 rbx 0xffff800020edb4a0 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff821c2b4f kprintf+0x16f r9 0x1 r10 0x2 r11 0x802897e452b7cba3 r12 0x3000000008 r13 0xffff800020edb400 r14 0x100 r15 0x1 rip 0xffffffff811a3778 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020edb3e0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=167475 stat=onproc flags process=0 proc=0 pri=52, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020dec4e8,0xffffffff828ad340 process=0xffff800020e00010 user=0xffff800020ed6000, vmspace=0xfffffd807efff450 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *66862 167475 69890 0 7 0 syz-executor.0 69890 20374 27038 0 3 0x82 nanosleep syz-executor.0 27038 223769 42774 0 3 0x82 thrsleep syz-execprog 27038 25143 42774 0 3 0x4000082 nanosleep syz-execprog 27038 415406 42774 0 3 0x4000082 thrsleep syz-execprog 27038 30809 42774 0 3 0x4000082 thrsleep syz-execprog 27038 180032 42774 0 3 0x4000082 kqread syz-execprog 27038 302997 42774 0 3 0x4000082 thrsleep syz-execprog 27038 444805 42774 0 3 0x4000082 thrsleep syz-execprog 27038 77900 42774 0 3 0x4000082 nanosleep syz-execprog 42774 161016 5098 0 3 0x10008a pause ksh 5098 442950 88656 0 3 0x92 select sshd 55276 469945 1 0 3 0x100083 ttyin getty 88656 352337 1 0 3 0x80 select sshd 74521 136538 64074 74 3 0x100092 bpf pflogd 64074 287825 1 0 3 0x80 netio pflogd 64767 94569 25736 73 3 0x100090 kqread syslogd 25736 32096 1 0 3 0x100082 netio syslogd 44596 131389 1 77 3 0x100090 poll dhclient 77609 36592 1 0 3 0x80 poll dhclient 17792 94419 0 0 3 0x14200 bored smr 56969 143820 0 0 3 0x14200 pgzero zerothread 13913 13693 0 0 3 0x14200 aiodoned aiodoned 60442 47341 0 0 3 0x14200 syncer update 62554 105501 0 0 3 0x14200 cleaner cleaner 89040 360695 0 0 3 0x14200 reaper reaper 52501 495308 0 0 3 0x14200 pgdaemon pagedaemon 95971 246933 0 0 3 0x14200 bored crynlk 19098 45137 0 0 3 0x14200 bored crypto 92768 333972 0 0 3 0x40014200 acpi0 acpi0 64071 397521 0 0 3 0x40014200 idle1 25348 412655 0 0 3 0x14200 bored softnet 4862 91532 0 0 3 0x14200 bored systqmp 33750 504788 0 0 3 0x14200 bored systq 51176 76108 0 0 3 0x40014200 bored softclock 65234 169806 0 0 7 0x40014200 idle0 1 186210 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 (0xffffffff828c78b0) #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 rt_ifa_del+0xa1 sys/net/route.c:1163 #6 in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 #7 in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 #8 in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 #9 ifioctl+0xe70 sys/net/if.c:2288 #10 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #11 sys_ioctl+0x4a5 #12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #13 Xsyscall+0x128 Process 66862 (syz-executor.0) thread 0xffff800020dec9c8 (167475) exclusive rwlock netlock r = 0 (0xffffffff82707e28) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 in6_ioctl_change_ifaddr+0x155 sys/netinet6/in6.c:295 #2 ifioctl+0xe70 sys/net/if.c:2288 #3 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #4 sys_ioctl+0x4a5 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82899198) #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 (0xffffffff828c78b0) #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 rt_ifa_del+0xa1 sys/net/route.c:1163 #6 in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 #7 in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 #8 in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 #9 ifioctl+0xe70 sys/net/if.c:2288 #10 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #11 sys_ioctl+0x4a5 #12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9467 6396K 6396K 78643K 10560 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 163 0 ifaddr 38 9K 9K 78643K 69 0 counters 41 33K 33K 78643K 41 0 ioctlops 0 0K 4K 78643K 1468 0 mount 1 1K 1K 78643K 1 0 vnodes 1183 74K 75K 78643K 1188 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 3 8K 12K 78643K 48 0 proc 59 63K 83K 78643K 398 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 22 1K 1K 78643K 22 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 1K 78643K 197 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 72 11K 12K 78643K 978 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 7 0K 0K 78643K 7 0 temp 29 3841K 3905K 78643K 1929 0 kqueue 3 4K 4K 78643K 3 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 4 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 1 1 0 1 1 0 8 0 unpcb 120 29 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 64 0 57 1 0 1 1 0 8 0 nd6 48 3 0 0 1 0 1 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 pfstitem 24 11 0 0 1 0 1 1 0 8 0 pfstkey 112 11 0 0 1 0 1 1 0 8 0 pfstate 328 11 0 0 1 0 1 1 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 144 0 0 9 0 9 9 0 8 0 art_table 32 145 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1454 0 52 88 0 88 88 0 8 0 ffsino 272 1454 0 52 94 0 94 94 0 8 0 nchpl 144 1702 0 99 60 0 60 60 0 8 0 uvmvnodes 72 1464 0 0 27 0 27 27 0 8 0 vnodes 208 1464 0 0 78 0 78 78 0 8 0 namei 1024 4348 0 4348 2 1 1 1 0 8 1 percpumem 16 31 0 0 1 0 1 1 0 8 0 scxspl 192 4745 0 4745 8 1 7 7 0 8 7 plimitpl 152 15 0 8 1 0 1 1 0 8 0 sigapl 424 271 0 241 4 0 4 4 0 8 0 knotepl 112 47 0 36 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipelkpl 48 77 0 70 2 1 1 1 0 8 0 pipepl 120 154 0 141 2 1 1 1 0 8 0 fdescpl 496 256 0 241 3 0 3 3 0 8 0 filepl 152 1175 0 1116 3 0 3 3 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 62 0 53 1 0 1 1 0 8 0 zombiepl 144 241 0 241 2 1 1 1 0 8 1 processpl 984 271 0 241 5 0 5 5 0 8 1 procpl 624 278 0 241 3 0 3 3 0 8 0 sockpl 400 110 0 91 2 0 2 2 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 75 0 0 10 0 10 10 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 105 0 0 7 0 7 7 0 8 0 mbufpl: pool(0xffffffff828c78a0:mbufpl): free list modified: page 0xfffffd806d5e9000; item ordinal 0; addr 0xfffffd806d5e9500 (p 0xfffffd806dc74000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd806d5e9000; item ordinal 0; addr 0xfffffd806d5e9500 (p 0xfffffd806dc74000); offset 0x0=0x0 mbufpl: pool(0xffffffff828c78a0:mbufpl): page inconsistency: page 0xfffffd806d5e9000; item ordinal 1; addr 0x1a2b0ad114cdf846 mbufpl: pool(0xffffffff828c78a0:mbufpl): free list modified: page 0xfffffd806d733000; item ordinal 0; addr 0xfffffd806d733a00 (p 0xfffffd806dc74000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd806d733000; item ordinal 0; addr 0xfffffd806d733a00 (p 0xfffffd806dc74000); offset 0x0=0x0 mbufpl: pool(0xffffffff828c78a0:mbufpl): page inconsistency: page 0xfffffd806d733000; item ordinal 1; addr 0xfe6868fd2a90053c bufpl 280 3076 0 133 211 0 211 211 0 8 0 anonpl 16 23136 0 21463 14 2 12 12 0 124 3 amapchunkpl 152 860 0 793 5 0 5 5 0 158 1 amappl16 192 245 0 204 3 0 3 3 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 63 0 56 1 0 1 1 0 8 0 amappl13 168 22 0 20 2 1 1 1 0 8 0 amappl12 160 40 0 38 2 1 1 1 0 8 0 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 15 0 13 1 0 1 1 0 8 0 amappl9 136 235 0 234 1 0 1 1 0 8 0 amappl8 128 274 0 266 1 0 1 1 0 8 0 amappl7 120 115 0 103 1 0 1 1 0 8 0 amappl6 112 23 0 21 2 1 1 1 0 8 0 amappl5 104 120 0 105 1 0 1 1 0 8 0 amappl4 96 528 0 500 1 0 1 1 0 8 0 amappl3 88 139 0 131 1 0 1 1 0 8 0 amappl2 80 965 0 905 3 1 2 2 0 8 0 amappl1 72 15690 0 15263 23 5 18 18 0 8 8 amappl 80 508 0 479 1 0 1 1 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 256 0 241 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 256 0 241 1 0 1 1 0 8 0 vmmpekpl 168 6424 0 6399 2 0 2 2 0 8 0 vmmpepl 168 33875 0 32905 82 10 72 72 0 357 29 vmsppl 368 255 0 241 2 0 2 2 0 8 0 pdppl 4096 519 0 482 6 0 6 6 0 8 1 pvpl 32 116996 0 112888 110 6 104 104 0 265 70 pmappl 232 255 0 241 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 233 0 4 7 0 7 7 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82711ff0) 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(ffffffff82898f90) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82898f90) 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 acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187 sched_idle(ffffffff82711ff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff82711ff0) 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(ffffffff82898f90) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82898f90) 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 acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187 sched_idle(ffffffff82711ff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -8 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(ffffffff82479155) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828c78a0,2,ffff800020edb5a8) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828c78a0,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 rt_ifa_del(ffff800000a9f700,800100,ffff800000a9f740,0) at rt_ifa_del+0xa1 sys/net/route.c:1163 in6_unlink_ifa(ffff800000a9f700,ffff800000ac3000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac3000,ffff800020edbbb0,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff800020edbbb0,ffff800000ac3000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd806ead3e18,8080691a,ffff800020edbbb0,ffff800020dec9c8) at ifioctl+0xe70 sys/net/if.c:2288 soo_ioctl(fffffd806cf56c88,8080691a,ffff800020edbbb0,ffff800020dec9c8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020dec9c8,ffff800020edbcc8,ffff800020edbd10) at sys_ioctl+0x4a5 syscall(ffff800020edbd90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020edbd90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff5560, count: 1 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82479155) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828c78a0,2,ffff800020edb5a8) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828c78a0,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 rt_ifa_del(ffff800000a9f700,800100,ffff800000a9f740,0) at rt_ifa_del+0xa1 sys/net/route.c:1163 in6_unlink_ifa(ffff800000a9f700,ffff800000ac3000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac3000,ffff800020edbbb0,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff800020edbbb0,ffff800000ac3000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd806ead3e18,8080691a,ffff800020edbbb0,ffff800020dec9c8) at ifioctl+0xe70 sys/net/if.c:2288 soo_ioctl(fffffd806cf56c88,8080691a,ffff800020edbbb0,ffff800020dec9c8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020dec9c8,ffff800020edbcc8,ffff800020edbd10) at sys_ioctl+0x4a5 syscall(ffff800020edbd90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020edbd90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff5560, count: -14 ddb{1}>