panic(ffffffff824736ee) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828cc008,2,ffff800020da8c68) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828cc008,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_copym(fffffd807e946f00,24a4,580,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd807e946f00,24a4,580,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ad7540) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_input(ffff800020da9248,ffff800020da9254,6,2) at tcp_input+0x2356 ip_deliver(ffff800020da9248,ffff800020da9254,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668 ip_ours(ffff800020da9248,ffff800020da9254,8b,0) at ip_ours+0x412 ip_input_if(ffff800020da9248,ffff800020da9254,4,0,ffff80000017b2a8) at ip_input_if+0x6ce ipv4_input(ffff80000017b2a8,fffffd807e947300) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017b2a8,fffffd807e947300,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017b2a8,ffff800020da9378) at if_input_process+0x10b if_ih_input sys/net/if.c:908 [inline] if_input_process(ffff80000017b2a8,ffff800020da9378) at if_input_process+0x10b sys/net/if.c:942 ifiq_process(ffff80000017b6a0) at ifiq_process+0x80 sys/net/ifq.c:646 end trace frame: 0xffff800020da9450, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic pool_do_get: mbufpl free list modified: page 0xfffffd806f36b000; item addr 0xfffffd806f36ba00; offset 0x0=0xe2701e0000000000 != 0xe2701e71caf311ce ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff824736ee) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828cc008,2,ffff800020da8c68) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828cc008,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_copym(fffffd807e946f00,24a4,580,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd807e946f00,24a4,580,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ad7540) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_input(ffff800020da9248,ffff800020da9254,6,2) at tcp_input+0x2356 ip_deliver(ffff800020da9248,ffff800020da9254,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668 ip_ours(ffff800020da9248,ffff800020da9254,8b,0) at ip_ours+0x412 ip_input_if(ffff800020da9248,ffff800020da9254,4,0,ffff80000017b2a8) at ip_input_if+0x6ce ipv4_input(ffff80000017b2a8,fffffd807e947300) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017b2a8,fffffd807e947300,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017b2a8,ffff800020da9378) at if_input_process+0x10b if_ih_input sys/net/if.c:908 [inline] if_input_process(ffff80000017b2a8,ffff800020da9378) at if_input_process+0x10b sys/net/if.c:942 ifiq_process(ffff80000017b6a0) at ifiq_process+0x80 sys/net/ifq.c:646 taskq_thread(ffff80000002c000) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: -15 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020da8ab0 rbx 0xffff800020da8b60 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff81bc79af kprintf+0x16f r9 0x1 r10 0x2 r11 0x87e1670799623fe2 r12 0x3000000008 r13 0xffff800020da8ac0 r14 0x104 r15 0x1 rip 0xffffffff81da3c38 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020da8aa0 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (softnet) pid=45795 stat=onproc flags process=14000 proc=200 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020d889c0,0xffff800020d884f0 process=0xffff800020d8a3d8 user=0xffff800020da4000, vmspace=0xffffffff828b02b8 estcpu=1, cpticks=3, pctcpu=0.8 user=0, sys=3, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 7933 225748 1 0 3 0x100083 ttyin getty 15259 224099 72270 0 2 0x2 syz-executor.1 28496 364058 0 0 3 0x14280 nfsidl nfsio 60022 413783 0 0 3 0x14280 nfsidl nfsio 86867 250764 0 0 3 0x14280 nfsidl nfsio 87822 190983 0 0 3 0x14280 nfsidl nfsio 6951 38579 0 0 3 0x14280 nfsidl nfsio 37190 458123 0 0 3 0x14280 nfsidl nfsio 67311 150266 0 0 3 0x14280 nfsidl nfsio 11027 120240 0 0 3 0x14280 nfsidl nfsio 9467 469738 0 0 3 0x14280 nfsidl nfsio 35361 263892 0 0 3 0x14280 nfsidl nfsio 85877 379860 0 0 3 0x14280 nfsidl nfsio 5870 65057 0 0 3 0x14280 nfsidl nfsio 65389 64754 0 0 3 0x14280 nfsidl nfsio 94555 273186 0 0 3 0x14280 nfsidl nfsio 50073 25616 0 0 3 0x14280 nfsidl nfsio 60850 150704 0 0 3 0x14280 nfsidl nfsio 8879 79899 0 0 3 0x14280 nfsidl nfsio 32172 303746 0 0 3 0x14280 nfsidl nfsio 19719 448896 0 0 3 0x14280 nfsidl nfsio 57455 145897 0 0 3 0x14280 nfsidl nfsio 21253 59411 0 0 3 0x14200 bored sosplice 53941 194134 72270 0 3 0x82 piperd syz-executor.0 72270 419428 53491 0 3 0x82 thrsleep syz-fuzzer 72270 35740 53491 0 3 0x4000082 nanosleep syz-fuzzer 72270 436469 53491 0 3 0x4000082 thrsleep syz-fuzzer 72270 453396 53491 0 3 0x4000082 thrsleep syz-fuzzer 72270 206081 53491 0 3 0x4000082 thrsleep syz-fuzzer 72270 450328 53491 0 3 0x4000082 thrsleep syz-fuzzer 72270 236538 53491 0 3 0x4000082 thrsleep syz-fuzzer 72270 35527 53491 0 2 0x4000002 syz-fuzzer 72270 212578 53491 0 3 0x4000082 thrsleep syz-fuzzer 72270 393109 53491 0 2 0x4000002 syz-fuzzer 53491 368777 9639 0 3 0x10008a pause ksh 9639 349869 36612 0 7 0x12 sshd 36612 59419 1 0 3 0x80 select sshd 10901 313611 41780 74 3 0x100092 bpf pflogd 41780 345009 1 0 3 0x80 netio pflogd 9764 276639 50703 73 3 0x100090 kqread syslogd 50703 284390 1 0 3 0x100082 netio syslogd 80193 338470 1 77 3 0x100090 poll dhclient 9980 80955 1 0 3 0x80 poll dhclient 95593 405638 0 0 3 0x14200 bored smr 21570 168483 0 0 2 0x14200 zerothread 31108 124553 0 0 3 0x14200 aiodoned aiodoned 66424 363827 0 0 3 0x14200 syncer update 74645 265301 0 0 3 0x14200 cleaner cleaner 89683 256596 0 0 3 0x14200 reaper reaper 83520 199053 0 0 3 0x14200 pgdaemon pagedaemon 42327 187532 0 0 3 0x14200 bored crynlk 74895 319842 0 0 3 0x14200 bored crypto 76184 516922 0 0 3 0x40014200 acpi0 acpi0 7530 36172 0 0 3 0x40014200 idle1 *85330 45795 0 0 7 0x14200 softnet 81909 495525 0 0 3 0x14200 bored systqmp 69655 245067 0 0 3 0x14200 bored systq 41815 108806 0 0 3 0x40014200 bored softclock 8887 202235 0 0 3 0x40014200 idle0 1 287585 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive mutex mbufpl r = 0 (0xffffffff828cc018) #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_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] #4 m_copym+0x174 sys/kern/uipc_mbuf.c:667 #5 tcp_output+0x15ba sys/netinet/tcp_output.c:673 #6 tcp_usrreq+0xa55 #7 sosend+0x671 sys/kern/uipc_socket.c:549 #8 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #9 sys_write+0x83 sys/kern/sys_generic.c:285 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 Process 9639 (sshd) thread 0xffff800020e41d50 (349869) exclusive rwlock netlock r = 0 (0xffffffff827254e8) #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:537 #3 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #4 sys_write+0x83 sys/kern/sys_generic.c:285 #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9546 6427K 6787K 78643K 11417 0 pcb 13 8K 8K 78643K 73 0 rtable 122 7K 8K 78643K 363 0 ifaddr 100 18K 19K 78643K 165 0 counters 43 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 1510 0 iov 0 0K 18K 78643K 294 0 mount 1 1K 1K 78643K 1 0 vnodes 1225 77K 77K 78643K 1431 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 11 0K 1K 78643K 43 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 368 0 sigio 0 0K 0K 78643K 6 0 proc 61 63K 95K 78643K 529 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 23 0 in_multi 48 2K 2K 78643K 91 0 ether_multi 1 0K 0K 78643K 8 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 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 252 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 147 89K 89K 78643K 2091 0 UVM aobj 11 4K 4K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 44 0 NDP 17 0K 0K 78643K 34 0 temp 147 3856K 3921K 78643K 3702 0 kqueue 3 4K 14K 78643K 35 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 9 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 35 0 33 1 0 1 1 0 8 0 rtentry 112 64 0 21 2 0 2 2 0 8 0 unpcb 120 273 0 263 1 0 1 1 0 8 0 syncache 264 11 0 11 4 3 1 1 0 8 1 tcpqe 32 141 0 141 4 3 1 1 0 8 1 tcpcb 544 129 0 124 1 0 1 1 0 8 0 inpcb 280 359 0 351 3 1 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 11 0 6 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 swfcl 56 1 0 0 1 0 1 1 0 8 0 ppxss 1128 3 0 3 2 2 0 1 0 8 0 pfstscr 40 2 0 1 1 0 1 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 40 847 0 423 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 11 0 3 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 14 0 7 1 0 1 1 0 8 0 pfstkey 112 15 0 8 1 0 1 1 0 8 0 pfstate 328 15 0 8 2 0 2 2 0 8 0 pfsrctr 152 50 0 45 1 0 1 1 0 8 0 pfrule 1360 24 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 284 0 87 15 1 14 14 0 8 0 art_table 32 285 0 87 2 0 2 2 0 8 0 art_node 16 63 0 23 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 7 2 1 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 41 0 32 1 0 1 1 0 8 0 shmpl 112 14 0 5 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1879 0 473 89 1 88 89 0 8 0 ffsino 272 1879 0 473 94 0 94 94 0 8 0 nchpl 144 2757 0 1163 60 0 60 60 0 8 0 uvmvnodes 72 2079 0 0 38 0 38 38 0 8 0 vnodes 208 2079 0 0 110 0 110 110 0 8 0 namei 1024 7968 0 7968 1 0 1 1 0 8 1 percpumem 16 43 0 11 1 0 1 1 0 8 0 vcpupl 1984 8 0 1 1 0 1 1 0 8 0 vmpool 560 10 0 3 1 0 1 1 0 8 0 pfiaddrpl 120 3 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 7655 0 7655 10 9 1 7 0 8 1 plimitpl 152 47 0 39 1 0 1 1 0 8 0 sigapl 424 603 0 552 6 0 6 6 0 8 0 futexpl 56 6743 0 6743 1 0 1 1 0 8 1 knotepl 112 109 0 90 1 0 1 1 0 8 0 kqueuepl 144 69 0 67 1 0 1 1 0 8 0 pipelkpl 48 152 0 142 1 0 1 1 0 8 0 pipepl 120 304 0 285 2 1 1 2 0 8 0 fdescpl 496 567 0 552 3 0 3 3 0 8 0 filepl 152 3785 0 3684 6 1 5 6 0 8 1 lockfpl 104 58 0 57 1 0 1 1 0 8 0 lockfspl 48 22 0 21 1 0 1 1 0 8 0 sessionpl 112 21 0 10 1 0 1 1 0 8 0 pgrppl 48 25 0 14 1 0 1 1 0 8 0 ucredpl 96 288 0 279 1 0 1 1 0 8 0 zombiepl 144 552 0 552 1 0 1 1 0 8 1 processpl 984 603 0 552 7 0 7 7 0 8 0 procpl 624 1267 0 1207 6 0 6 6 0 8 1 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 400 671 0 651 4 0 4 4 0 8 1 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 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 162 0 0 20 0 20 20 0 8 1 mtagpl 80 15 0 0 1 0 1 1 0 8 0 mbufpl 256 202 0 0 11 0 11 11 0 8 0 mbufpl: pool(0xffffffff828cc008:mbufpl): free list modified: page 0xfffffd806f36b000; item ordinal 0; addr 0xfffffd806f36ba00 (p 0xfffffd806f36c000); offset 0x0=0xe2701e0000000000 bufpl 280 4089 0 134 283 0 283 283 0 8 0 anonpl 16 66101 0 50081 70 4 66 67 0 124 0 amapchunkpl 152 2794 0 2624 9 1 8 9 0 158 0 amappl16 192 2331 0 1470 45 1 44 44 0 8 0 amappl15 184 35 0 33 1 0 1 1 0 8 0 amappl14 176 22 0 19 1 0 1 1 0 8 0 amappl13 168 316 0 311 1 0 1 1 0 8 0 amappl12 160 5 0 3 2 1 1 1 0 8 0 amappl11 152 59 0 43 1 0 1 1 0 8 0 amappl10 144 22 0 15 1 0 1 1 0 8 0 amappl9 136 544 0 542 1 0 1 1 0 8 0 amappl8 128 549 0 502 2 0 2 2 0 8 0 amappl7 120 125 0 113 1 0 1 1 0 8 0 amappl6 112 26 0 19 1 0 1 1 0 8 0 amappl5 104 321 0 305 1 0 1 1 0 8 0 amappl4 96 659 0 625 2 1 1 2 0 8 0 amappl3 88 259 0 253 1 0 1 1 0 8 0 amappl2 80 3545 0 3483 2 0 2 2 0 8 0 amappl1 72 22117 0 21687 24 14 10 18 0 8 0 amappl 80 1508 0 1458 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 15 0 5 1 0 1 1 0 8 0 uaddrrnd 24 577 0 555 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 577 0 555 1 0 1 1 0 8 0 vmmpekpl 168 7910 0 7872 2 0 2 2 0 8 0 vmmpepl 168 75514 0 73555 147 36 111 124 0 357 18 vmsppl 368 576 0 555 4 1 3 3 0 8 1 pdppl 4096 1161 0 1117 6 0 6 6 0 8 0 pvpl 32 219597 0 200663 166 8 158 160 0 265 3 pmappl 232 576 0 555 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 264 0 6 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff824736ee) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff828cc008,2,ffff800020da8c68) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828cc008,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_copym(fffffd807e946f00,24a4,580,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd807e946f00,24a4,580,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ad7540) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_input(ffff800020da9248,ffff800020da9254,6,2) at tcp_input+0x2356 ip_deliver(ffff800020da9248,ffff800020da9254,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668 ip_ours(ffff800020da9248,ffff800020da9254,8b,0) at ip_ours+0x412 ip_input_if(ffff800020da9248,ffff800020da9254,4,0,ffff80000017b2a8) at ip_input_if+0x6ce ipv4_input(ffff80000017b2a8,fffffd807e947300) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017b2a8,fffffd807e947300,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017b2a8,ffff800020da9378) at if_input_process+0x10b if_ih_input sys/net/if.c:908 [inline] if_input_process(ffff80000017b2a8,ffff800020da9378) at if_input_process+0x10b sys/net/if.c:942 ifiq_process(ffff80000017b6a0) at ifiq_process+0x80 sys/net/ifq.c:646 taskq_thread(ffff80000002c000) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d70ff0) 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 reboot(100) at reboot+0x74 sys/kern/kern_xxx.c:74 panic(ffffffff824736ee) at panic+0x164 sys/kern/subr_prf.c:207 pool_do_get(ffffffff828cc008,2,ffff800020e636f8) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828cc008,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_copym(fffffd807e946f00,2a24,580,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd807e946f00,2a24,580,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ad7540) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eadc968,9,fffffd806f36bc00,0,0,ffff800020e41d50) at tcp_usrreq+0xa55 sosend(fffffd806eadc968,0,ffff800020e63bd8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020e41d50,4,ffff800020e63bd8,0,ffff800020e63cc0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e41d50,ffff800020e63c70,ffff800020e63cc0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e63d40) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e63d40) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 end trace frame: 0xffff800020e63dc0, count: 0 ddb{1}> trace x86_ipi_db(ffff800020d70ff0) 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 reboot(100) at reboot+0x74 sys/kern/kern_xxx.c:74 panic(ffffffff824736ee) at panic+0x164 sys/kern/subr_prf.c:207 pool_do_get(ffffffff828cc008,2,ffff800020e636f8) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff828cc008,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_copym(fffffd807e946f00,2a24,580,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd807e946f00,2a24,580,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ad7540) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eadc968,9,fffffd806f36bc00,0,0,ffff800020e41d50) at tcp_usrreq+0xa55 sosend(fffffd806eadc968,0,ffff800020e63bd8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020e41d50,4,ffff800020e63bd8,0,ffff800020e63cc0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e41d50,ffff800020e63c70,ffff800020e63cc0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e63d40) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e63d40) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffca480, count: -15