ggpanic: pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806718c000+16 0x0!=0x98d7bf359a0e78bb Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *432305 93921 0 0 0x4000000 1 syz-executor.1 179001 79260 0 0x2 0x4000480 0 syz-fuzzer db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8240e744) at panic+0x164 sys/kern/subr_prf.c:218 pool_cache_get(ffffffff828d47c8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff828d47c8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff828d47c8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8067192100,21d4,5a0,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8067192100,21d4,5a0,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 ip_fragment(fffffd8067192100,ffff80000017c2a8,5b4) at ip_fragment+0x324 ip_output(fffffd8067192100,0,fffffd806f66b198,20,0,fffffd806f66b128) at ip_output+0xfd7 sys/netinet/ip_output.c:499 rip_output(fffffd8067192100,fffffd806ca66c90,ffff800021f937d8,34bc) at rip_output+0x252 sys/netinet/raw_ip.c:289 rip_usrreq(fffffd806ca66c90,9,fffffd8067192100,0,0,ffff800021f8d3e8) at rip_usrreq+0x46a sys/netinet/raw_ip.c:538 sosend(fffffd806ca66c90,0,ffff800021f93950,0,0,0) at sosend+0x671 sys/kern/uipc_socket.c:555 sendit(ffff800021f8d3e8,8,ffff800021f93a30,0,ffff800021f93b10) at sendit+0x52b sys/kern/uipc_syscalls.c:657 sys_sendto(ffff800021f8d3e8,ffff800021f93ac8,ffff800021f93b10) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:522 syscall(ffff800021f93b90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f93b90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57195357b50, 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_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806718c000+16 0x0!=0x98d7bf359a0e78bb ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8240e744) at panic+0x164 sys/kern/subr_prf.c:218 pool_cache_get(ffffffff828d47c8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff828d47c8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff828d47c8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8067192100,21d4,5a0,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8067192100,21d4,5a0,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 ip_fragment(fffffd8067192100,ffff80000017c2a8,5b4) at ip_fragment+0x324 ip_output(fffffd8067192100,0,fffffd806f66b198,20,0,fffffd806f66b128) at ip_output+0xfd7 sys/netinet/ip_output.c:499 rip_output(fffffd8067192100,fffffd806ca66c90,ffff800021f937d8,34bc) at rip_output+0x252 sys/netinet/raw_ip.c:289 rip_usrreq(fffffd806ca66c90,9,fffffd8067192100,0,0,ffff800021f8d3e8) at rip_usrreq+0x46a sys/netinet/raw_ip.c:538 sosend(fffffd806ca66c90,0,ffff800021f93950,0,0,0) at sosend+0x671 sys/kern/uipc_socket.c:555 sendit(ffff800021f8d3e8,8,ffff800021f93a30,0,ffff800021f93b10) at sendit+0x52b sys/kern/uipc_syscalls.c:657 sys_sendto(ffff800021f8d3e8,ffff800021f93ac8,ffff800021f93b10) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:522 syscall(ffff800021f93b90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f93b90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57195357b50, count: -14 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800021f93310 rbx 0xffff800021f933c0 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffff800021f932d0 r9 0xffffffff8167b47f kprintf+0x16f r10 0x1 r11 0xd2bc4960c2c25ff0 r12 0x3000000008 r13 0xffff800021f93320 r14 0x100 r15 0x1 rip 0xffffffff8215e708 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021f93300 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=432305 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800021f8cef8,0xffffffff828c6de0 process=0xffff800021f787e0 user=0xffff800021f8e000, vmspace=0xfffffd807effe000 estcpu=27, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 93921 114152 84594 0 3 0x80 fsleep syz-executor.1 *93921 432305 84594 0 7 0x4000000 syz-executor.1 84594 521061 79260 0 2 0x482 syz-executor.1 26597 286066 0 0 3 0x14280 nfsidl nfsio 58373 45584 0 0 3 0x14280 nfsidl nfsio 65777 357430 0 0 3 0x14280 nfsidl nfsio 7405 25868 0 0 3 0x14280 nfsidl nfsio 50452 43645 0 0 3 0x14280 nfsidl nfsio 78998 402058 0 0 3 0x14280 nfsidl nfsio 66940 487481 0 0 3 0x14280 nfsidl nfsio 24559 410585 0 0 3 0x14280 nfsidl nfsio 10909 464921 0 0 3 0x14280 nfsidl nfsio 35333 425913 0 0 3 0x14280 nfsidl nfsio 6626 61892 0 0 3 0x14280 nfsidl nfsio 97078 439755 0 0 3 0x14280 nfsidl nfsio 70819 487088 0 0 3 0x14280 nfsidl nfsio 32978 400076 0 0 3 0x14280 nfsidl nfsio 32337 304365 0 0 3 0x14280 nfsidl nfsio 17613 172697 0 0 3 0x14280 nfsidl nfsio 13181 120145 0 0 3 0x14280 nfsidl nfsio 51041 395533 0 0 3 0x14280 nfsidl nfsio 27938 280906 0 0 3 0x14280 nfsidl nfsio 2498 350416 0 0 3 0x14280 nfsidl nfsio 59620 439550 1 0 3 0x100083 ttyin getty 72472 320652 79260 0 2 0x482 syz-executor.0 79260 509000 34567 0 3 0x82 thrsleep syz-fuzzer 79260 179001 34567 0 7 0x4000482 syz-fuzzer 79260 188440 34567 0 3 0x4000082 thrsleep syz-fuzzer 79260 352617 34567 0 3 0x4000082 kqread syz-fuzzer 79260 454113 34567 0 3 0x4000082 thrsleep syz-fuzzer 79260 314279 34567 0 3 0x4000082 thrsleep syz-fuzzer 79260 283243 34567 0 3 0x4000082 thrsleep syz-fuzzer 79260 406018 34567 0 2 0x4000482 syz-fuzzer 34567 514554 99256 0 3 0x10008a pause ksh 99256 21033 27432 0 3 0x92 select sshd 27432 385782 1 0 3 0x80 select sshd 66649 85050 3267 74 3 0x100092 bpf pflogd 3267 6575 1 0 3 0x80 netio pflogd 33365 467399 49721 73 3 0x100090 kqread syslogd 49721 47024 1 0 3 0x100082 netio syslogd 50467 23670 1 77 3 0x100090 poll dhclient 95735 363841 1 0 3 0x80 poll dhclient 49759 113265 0 0 3 0x14200 bored smr 45362 471556 0 0 3 0x14200 pgzero zerothread 50302 498864 0 0 3 0x14200 aiodoned aiodoned 85911 411704 0 0 3 0x14200 syncer update 90191 325929 0 0 3 0x14200 cleaner cleaner 39421 370040 0 0 3 0x14200 reaper reaper 43958 389853 0 0 3 0x14200 pgdaemon pagedaemon 1757 357102 0 0 3 0x14200 bored crynlk 15329 210107 0 0 3 0x14200 bored crypto 88201 219878 0 0 3 0x40014200 acpi0 acpi0 28019 468404 0 0 3 0x40014200 idle1 39036 475706 0 0 3 0x14200 bored softnet 49521 54036 0 0 3 0x14200 bored systqmp 47816 397751 0 0 3 0x14200 bored systq 72652 200302 0 0 3 0x40014200 bored softclock 40906 47765 0 0 3 0x40014200 idle0 1 249455 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 93921 (syz-executor.1) thread 0xffff800021f8d3e8 (432305) exclusive rwlock netlock r = 0 (0xffffffff82780fa0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sosend+0x559 sys/kern/uipc_socket.c:543 #3 sendit+0x52b sys/kern/uipc_syscalls.c:657 #4 sys_sendto+0x80 sys/kern/uipc_syscalls.c:522 #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9500 6408K 6733K 78643K 10939 0 pcb 13 8K 8K 78643K 49 0 rtable 111 4K 7K 78643K 575 0 ifaddr 64 13K 14K 78643K 104 0 counters 43 33K 34K 78643K 49 0 ioctlops 0 0K 4K 78643K 1525 0 iov 0 0K 12K 78643K 27 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1346 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 55 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 324 0 sigio 0 0K 0K 78643K 6 0 proc 61 63K 95K 78643K 494 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 12 0 in_multi 37 2K 2K 78643K 71 0 ether_multi 1 0K 0K 78643K 4 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 231 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 170 27K 43K 78643K 2002 0 UVM aobj 14 4K 4K 78643K 17 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 26 0 NDP 10 0K 0K 78643K 20 0 temp 93 3868K 3932K 78643K 4092 0 kqueue 3 4K 12K 78643K 13 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 10 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 296 0 294 1 0 1 1 0 8 0 rtentry 112 69 0 25 2 0 2 2 0 8 0 unpcb 120 181 0 170 1 0 1 1 0 8 0 syncache 272 4 0 4 1 1 0 1 0 8 0 tcpqe 32 305 0 305 1 1 0 1 0 8 0 tcpcb 592 67 0 63 2 0 2 2 0 8 1 inpcb 296 416 0 406 2 0 2 2 0 8 1 nd6 48 15 0 9 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 2 0 2 1 1 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 24 0 22 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 2 0 0 1 0 1 1 0 8 0 pfstitem 24 14 0 6 1 0 1 1 0 8 0 pfstkey 112 14 0 6 1 0 1 1 0 8 0 pfstate 328 14 0 6 2 0 2 2 0 8 0 pfrule 1360 28 0 21 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 293 0 100 16 3 13 16 0 8 0 art_table 32 294 0 100 2 0 2 2 0 8 0 art_node 16 68 0 29 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 14 1 0 1 1 0 8 0 semapl 112 51 0 41 1 0 1 1 0 8 0 shmpl 112 14 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1776 0 373 89 1 88 89 0 8 0 ffsino 272 1776 0 373 94 0 94 94 0 8 0 nchpl 144 2393 0 797 60 0 60 60 0 8 0 uvmvnodes 72 1919 0 0 35 0 35 35 0 8 0 vnodes 208 1919 0 0 101 0 101 101 0 8 0 namei 1024 6496 0 6496 1 0 1 1 0 8 1 percpumem 16 35 0 3 1 0 1 1 0 8 0 vmpool 560 2 0 2 1 0 1 1 0 8 1 pfiaddrpl 120 9 0 8 1 0 1 1 0 8 0 scxspl 200 6873 0 6873 8 7 1 7 0 8 1 plimitpl 152 46 0 38 1 0 1 1 0 8 0 sigapl 424 557 0 506 6 0 6 6 0 8 0 futexpl 56 4589 0 4588 1 0 1 1 0 8 0 knotepl 112 85 0 65 1 0 1 1 0 8 0 kqueuepl 152 32 0 29 1 0 1 1 0 8 0 pipepl 304 109 0 98 2 0 2 2 0 8 1 fdescpl 496 522 0 506 3 0 3 3 0 8 0 filepl 152 2930 0 2824 5 0 5 5 0 8 0 lockfpl 104 44 0 43 1 0 1 1 0 8 0 lockfspl 48 18 0 17 1 0 1 1 0 8 0 sessionpl 120 20 0 9 1 0 1 1 0 8 0 pgrppl 48 24 0 13 1 0 1 1 0 8 0 ucredpl 96 255 0 246 1 0 1 1 0 8 0 zombiepl 144 506 0 505 1 0 1 1 0 8 0 processpl 1008 557 0 505 7 0 7 7 0 8 0 procpl 632 1149 0 1089 6 0 6 6 0 8 0 sockpl 400 897 0 874 5 1 4 4 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 192 0 0 23 0 23 23 0 8 0 mtagpl 96 12 0 0 1 0 1 1 0 8 0 mbufpl 256 602 0 0 38 0 38 38 0 8 0 bufpl 280 3743 0 129 259 0 259 259 0 8 0 anonpl 16 69597 0 50477 87 1 86 86 0 124 8 amapchunkpl 152 3397 0 3097 26 6 20 25 0 158 7 amappl16 192 2166 0 1280 45 0 45 45 0 8 0 amappl15 184 9 0 7 1 0 1 1 0 8 0 amappl14 176 147 0 143 1 0 1 1 0 8 0 amappl13 168 37 0 33 1 0 1 1 0 8 0 amappl12 160 29 0 25 1 0 1 1 0 8 0 amappl11 152 58 0 43 1 0 1 1 0 8 0 amappl10 144 13 0 11 1 0 1 1 0 8 0 amappl9 136 512 0 508 1 0 1 1 0 8 0 amappl8 128 541 0 482 2 0 2 2 0 8 0 amappl7 120 124 0 112 1 0 1 1 0 8 0 amappl6 112 38 0 28 1 0 1 1 0 8 0 amappl5 104 415 0 399 1 0 1 1 0 8 0 amappl4 96 513 0 483 1 0 1 1 0 8 0 amappl3 88 270 0 261 1 0 1 1 0 8 0 amappl2 80 3160 0 3090 2 0 2 2 0 8 0 amappl1 72 24318 0 23866 23 13 10 18 0 8 0 amappl 80 1440 0 1362 2 0 2 2 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 16 0 3 1 0 1 1 0 8 0 uaddrrnd 24 524 0 508 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 524 0 508 1 0 1 1 0 8 0 vmmpekpl 168 7734 0 7686 3 0 3 3 0 8 0 vmmpepl 168 73449 0 71326 130 15 115 126 0 357 18 vmsppl 368 523 0 508 2 0 2 2 0 8 0 pdppl 4096 1055 0 1016 6 0 6 6 0 8 0 pvpl 32 220589 0 198183 206 3 203 203 0 265 21 pmappl 232 523 0 508 3 1 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 287 0 9 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82738ff0) 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(ffffffff8293cd60) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8293cd60) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff8293cd60,1) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020e785d0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e785d0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e785d0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff82867f84,120,ffffffff823fea21,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff8000fffff3d0,ffff800020e78700,ffff800020e78750) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800020e787d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e787d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00004df20, count: 3 ddb{0}> trace x86_ipi_db(ffffffff82738ff0) 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(ffffffff8293cd60) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8293cd60) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff8293cd60,1) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020e785d0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e785d0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e785d0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff82867f84,120,ffffffff823fea21,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff8000fffff3d0,ffff800020e78700,ffff800020e78750) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800020e787d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e787d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00004df20, count: -12 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(ffffffff8240e744) at panic+0x164 sys/kern/subr_prf.c:218 pool_cache_get(ffffffff828d47c8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff828d47c8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff828d47c8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8067192100,21d4,5a0,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8067192100,21d4,5a0,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 ip_fragment(fffffd8067192100,ffff80000017c2a8,5b4) at ip_fragment+0x324 ip_output(fffffd8067192100,0,fffffd806f66b198,20,0,fffffd806f66b128) at ip_output+0xfd7 sys/netinet/ip_output.c:499 rip_output(fffffd8067192100,fffffd806ca66c90,ffff800021f937d8,34bc) at rip_output+0x252 sys/netinet/raw_ip.c:289 rip_usrreq(fffffd806ca66c90,9,fffffd8067192100,0,0,ffff800021f8d3e8) at rip_usrreq+0x46a sys/netinet/raw_ip.c:538 sosend(fffffd806ca66c90,0,ffff800021f93950,0,0,0) at sosend+0x671 sys/kern/uipc_socket.c:555 sendit(ffff800021f8d3e8,8,ffff800021f93a30,0,ffff800021f93b10) at sendit+0x52b sys/kern/uipc_syscalls.c:657 sys_sendto(ffff800021f8d3e8,ffff800021f93ac8,ffff800021f93b10) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:522 syscall(ffff800021f93b90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f93b90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57195357b50, count: 1 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8240e744) at panic+0x164 sys/kern/subr_prf.c:218 pool_cache_get(ffffffff828d47c8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff828d47c8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff828d47c8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8067192100,21d4,5a0,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8067192100,21d4,5a0,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 ip_fragment(fffffd8067192100,ffff80000017c2a8,5b4) at ip_fragment+0x324 ip_output(fffffd8067192100,0,fffffd806f66b198,20,0,fffffd806f66b128) at ip_output+0xfd7 sys/netinet/ip_output.c:499 rip_output(fffffd8067192100,fffffd806ca66c90,ffff800021f937d8,34bc) at rip_output+0x252 sys/netinet/raw_ip.c:289 rip_usrreq(fffffd806ca66c90,9,fffffd8067192100,0,0,ffff800021f8d3e8) at rip_usrreq+0x46a sys/netinet/raw_ip.c:538 sosend(fffffd806ca66c90,0,ffff800021f93950,0,0,0) at sosend+0x671 sys/kern/uipc_socket.c:555 sendit(ffff800021f8d3e8,8,ffff800021f93a30,0,ffff800021f93b10) at sendit+0x52b sys/kern/uipc_syscalls.c:657 sys_sendto(ffff800021f8d3e8,ffff800021f93ac8,ffff800021f93b10) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:522 syscall(ffff800021f93b90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f93b90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57195357b50, count: -14