panic(ffffffff821fe4f9) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff82672df0) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff82672df0) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff82672df0,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd806b7fc600,34c,d4,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd806b7fc600,34c,d4,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000a0caa0) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eb3dc88,9,fffffd8079eaab00,0,0,ffff800020ed1870) at tcp_usrreq+0xa55 sosend(fffffd806eb3dc88,0,ffff800020e8d4a8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020ed1870,4,ffff800020e8d4a8,0,ffff800020e8d590) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020ed1870,ffff800020e8d540,ffff800020e8d590) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e8d610) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e8d610) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce7c0, count: 3 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 0xfffffd806f177400+16 0x0!=0x75277229c6a638c1 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821fe4f9) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff82672df0) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff82672df0) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff82672df0,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd806b7fc600,34c,d4,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd806b7fc600,34c,d4,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000a0caa0) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eb3dc88,9,fffffd8079eaab00,0,0,ffff800020ed1870) at tcp_usrreq+0xa55 sosend(fffffd806eb3dc88,0,ffff800020e8d4a8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020ed1870,4,ffff800020e8d4a8,0,ffff800020e8d590) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020ed1870,ffff800020e8d540,ffff800020e8d590) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e8d610) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e8d610) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce7c0, count: -12 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020e8ce40 rbx 0xffff800020e8cef0 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff8132874f kprintf+0x16f r9 0x1 r10 0x2 r11 0x81168745c4d93c60 r12 0x3000000008 r13 0xffff800020e8ce50 r14 0x100 r15 0x1 rip 0xffffffff82029618 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020e8ce30 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (sshd) pid=501130 stat=onproc flags process=12 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ed0760,0xffff800020ed0500 process=0xffff800020ec83f0 user=0xffff800020e88000, vmspace=0xfffffd806e94e5c8 estcpu=0, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 36058 503925 61648 0 7 0 syz-executor.0 10825 194913 41944 0 2 0x2 syz-executor.1 11653 325934 0 0 3 0x14200 acct acct 98272 500963 0 0 3 0x14200 bored sosplice 61648 69066 41944 0 2 0x2 syz-executor.0 41944 22127 50590 0 3 0x82 thrsleep syz-fuzzer 41944 445497 50590 0 2 0x4000482 syz-fuzzer 41944 241430 50590 0 3 0x4000082 thrsleep syz-fuzzer 41944 138108 50590 0 3 0x4000082 thrsleep syz-fuzzer 41944 44169 50590 0 3 0x4000082 thrsleep syz-fuzzer 41944 100183 50590 0 3 0x4000082 kqread syz-fuzzer 41944 242240 50590 0 3 0x4000082 thrsleep syz-fuzzer 41944 72483 50590 0 2 0x4000482 syz-fuzzer 41944 257441 50590 0 3 0x4000082 thrsleep syz-fuzzer 41944 17855 50590 0 3 0x4000082 thrsleep syz-fuzzer 50590 342112 59503 0 3 0x10008a pause ksh *59503 501130 7844 0 7 0x12 sshd 61525 517742 1 0 3 0x100083 ttyin getty 7844 73063 1 0 3 0x80 select sshd 77178 512399 16357 74 3 0x100092 bpf pflogd 16357 386656 1 0 3 0x80 netio pflogd 18811 282900 91355 73 3 0x100090 kqread syslogd 91355 284666 1 0 3 0x100082 netio syslogd 98431 511949 1 77 3 0x100090 poll dhclient 13723 113937 1 0 3 0x80 poll dhclient 54719 238891 0 0 3 0x14200 bored smr 35820 165796 0 0 3 0x14200 pgzero zerothread 16870 472908 0 0 3 0x14200 aiodoned aiodoned 90003 206229 0 0 3 0x14200 syncer update 14624 339308 0 0 3 0x14200 cleaner cleaner 68664 517289 0 0 3 0x14200 reaper reaper 97925 58440 0 0 3 0x14200 pgdaemon pagedaemon 40692 48456 0 0 3 0x14200 bored crynlk 6596 1137 0 0 3 0x14200 bored crypto 44205 158283 0 0 3 0x40014200 acpi0 acpi0 82521 194990 0 0 3 0x40014200 idle1 2668 49226 0 0 3 0x14200 bored softnet 74305 105610 0 0 3 0x14200 bored systqmp 52502 159740 0 0 3 0x14200 bored systq 60064 278802 0 0 3 0x40014200 bored softclock 45971 327337 0 0 3 0x40014200 idle0 1 55779 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive sched_lock &sched_lock r = 0 (0xffffffff8265c7b8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 sleep_setup+0xf1 sys/kern/kern_synch.c:380 #2 msleep+0xe5 sleep_setup_timeout sys/kern/kern_synch.c:435 [inline] #2 msleep+0xe5 sys/kern/kern_synch.c:245 #3 taskq_next_work+0xbe sys/kern/kern_task.c:323 #4 taskq_thread+0xe5 sys/kern/kern_task.c:366 #5 proc_trampoline+0x1c Process 10825 (syz-executor.1) thread 0xffff800020ec7878 (194913) exclusive rrwlock inode r = 0 (0xfffffd8007ef90a0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329 #8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8007ef9c50) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #9 Xsyscall+0x128 Process 59503 (sshd) thread 0xffff800020ed1870 (501130) exclusive rwlock netlock r = 0 (0xffffffff8250e5a8) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9526 6427K 6937K 78643K 11233 0 pcb 13 8K 8K 78643K 85 0 rtable 88 3K 3K 78643K 384 0 ifaddr 76 14K 15K 78643K 149 0 counters 43 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 1488 0 iov 0 0K 16K 78643K 47 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1434 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 361 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 95K 78643K 526 0 subproc 32 2K 2K 78643K 55 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 30 0 in_multi 54 3K 3K 78643K 104 0 ether_multi 1 0K 0K 78643K 11 0 mrt 0 0K 0K 78643K 8 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 244 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 121 71K 71K 78643K 2081 0 UVM aobj 18 2K 2K 78643K 18 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 52 0 NDP 13 0K 0K 78643K 31 0 temp 106 3047K 3111K 78643K 6995 0 kqueue 3 4K 9K 78643K 21 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 12 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 45 0 43 1 0 1 1 0 8 0 rtentry 112 78 0 44 2 0 2 2 0 8 0 unpcb 120 305 0 295 1 0 1 1 0 8 0 syncache 264 8 0 8 2 2 0 1 0 8 0 tcpqe 32 14 0 14 2 2 0 1 0 8 0 tcpcb 544 134 0 129 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 2 0 2 1 1 0 1 0 8 0 inpcb 280 418 0 408 2 0 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 12 0 8 1 0 1 1 0 8 0 ppxss 1128 3 0 3 2 1 1 1 0 8 1 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 41 0 8 1 0 1 1 0 8 0 pfstkey 112 41 0 8 2 0 2 2 0 8 0 pfstate 328 41 0 8 4 0 4 4 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 256 337 0 189 13 1 12 13 0 8 1 art_table 32 338 0 189 2 0 2 2 0 8 0 art_node 16 77 0 46 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 5 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 14 0 4 1 0 1 1 0 8 0 shmpl 112 16 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1899 0 491 89 0 89 89 0 8 0 ffsino 272 1899 0 491 95 0 95 95 0 8 0 nchpl 144 2791 0 1202 60 0 60 60 0 8 0 uvmvnodes 72 2098 0 0 39 0 39 39 0 8 0 vnodes 208 2098 0 0 111 0 111 111 0 8 0 namei 1024 7903 0 7903 1 0 1 1 0 8 1 percpumem 16 43 0 11 1 0 1 1 0 8 0 vcpupl 1984 5 0 0 1 0 1 1 0 8 0 vmpool 560 5 0 0 1 0 1 1 0 8 0 scxspl 192 7438 0 7438 8 7 1 7 0 8 1 plimitpl 152 44 0 36 1 0 1 1 0 8 0 sigapl 424 576 0 543 4 0 4 4 0 8 0 futexpl 56 5235 0 5235 1 0 1 1 0 8 1 knotepl 112 92 0 73 1 0 1 1 0 8 0 kqueuepl 144 52 0 50 1 0 1 1 0 8 0 pipelkpl 48 131 0 121 1 0 1 1 0 8 0 pipepl 120 262 0 243 1 0 1 1 0 8 0 fdescpl 496 558 0 542 3 0 3 3 0 8 0 filepl 152 3599 0 3499 6 1 5 6 0 8 1 lockfpl 104 78 0 77 1 0 1 1 0 8 0 lockfspl 48 28 0 27 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 331 0 322 1 0 1 1 0 8 0 zombiepl 144 543 0 543 1 0 1 1 0 8 1 processpl 984 576 0 543 5 0 5 5 0 8 0 procpl 624 1267 0 1225 4 0 4 4 0 8 0 sosppl 128 6 0 6 1 1 0 1 0 8 0 sockpl 400 771 0 751 7 3 4 6 0 8 1 mcl64k 65536 8 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 2 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 264 0 0 32 0 32 32 0 8 0 mtagpl 80 36 0 0 1 0 1 1 0 8 0 mbufpl 256 272 0 0 17 0 17 17 0 8 0 bufpl 280 4179 0 135 289 0 289 289 0 8 0 anonpl 16 61732 0 48049 59 1 58 58 0 124 0 amapchunkpl 152 3010 0 2872 8 1 7 8 0 158 0 amappl16 192 2137 0 1393 39 1 38 39 0 8 0 amappl15 184 157 0 156 2 1 1 1 0 8 0 amappl14 176 33 0 26 1 0 1 1 0 8 0 amappl13 168 31 0 30 1 0 1 1 0 8 0 amappl12 160 315 0 308 1 0 1 1 0 8 0 amappl11 152 64 0 49 1 0 1 1 0 8 0 amappl10 144 16 0 11 1 0 1 1 0 8 0 amappl9 136 403 0 401 1 0 1 1 0 8 0 amappl8 128 388 0 357 2 0 2 2 0 8 0 amappl7 120 123 0 111 1 0 1 1 0 8 0 amappl6 112 21 0 20 2 1 1 1 0 8 0 amappl5 104 584 0 567 1 0 1 1 0 8 0 amappl4 96 515 0 481 1 0 1 1 0 8 0 amappl3 88 108 0 103 1 0 1 1 0 8 0 amappl2 80 3549 0 3485 2 0 2 2 0 8 0 amappl1 72 22189 0 21763 23 13 10 18 0 8 0 amappl 80 1533 0 1486 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 17 0 0 1 0 1 1 0 8 0 uaddrrnd 24 563 0 542 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 563 0 542 1 0 1 1 0 8 0 vmmpekpl 168 8199 0 8164 2 0 2 2 0 8 0 vmmpepl 168 74170 0 72293 128 16 112 112 0 357 24 vmsppl 368 562 0 542 2 0 2 2 0 8 0 pdppl 4096 1134 0 1089 6 0 6 6 0 8 0 pvpl 32 207593 0 190889 146 6 140 146 0 265 1 pmappl 232 562 0 542 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 278 0 7 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82507ff0) 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 x86_bus_space_io_write_1(3f8,0,6e) at x86_bus_space_io_write_1+0x45 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,6e) at comcnputc+0x131 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,6e) at comcnputc+0x131 sys/dev/ic/com.c:1254 cnputc(6e) at cnputc+0x4c sys/dev/cons.c:239 kputchar(6e,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052 panic(ffffffff821fb50f) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff821fb50f) at panic+0xf3 sys/kern/subr_prf.c:197 __assert(ffffffff82254912,ffffffff82240c49,29e,ffffffff822245bb) at __assert+0x2b sys/kern/subr_prf.c:154 proc_trampoline_mp() at proc_trampoline_mp+0x123 end trace frame: 0x0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff82507ff0) 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 x86_bus_space_io_write_1(3f8,0,6e) at x86_bus_space_io_write_1+0x45 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,6e) at comcnputc+0x131 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,6e) at comcnputc+0x131 sys/dev/ic/com.c:1254 cnputc(6e) at cnputc+0x4c sys/dev/cons.c:239 kputchar(6e,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052 panic(ffffffff821fb50f) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff821fb50f) at panic+0xf3 sys/kern/subr_prf.c:197 __assert(ffffffff82254912,ffffffff82240c49,29e,ffffffff822245bb) at __assert+0x2b sys/kern/subr_prf.c:154 proc_trampoline_mp() at proc_trampoline_mp+0x123 end trace frame: 0x0, count: -11 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(ffffffff821fe4f9) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff82672df0) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff82672df0) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff82672df0,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd806b7fc600,34c,d4,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd806b7fc600,34c,d4,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000a0caa0) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eb3dc88,9,fffffd8079eaab00,0,0,ffff800020ed1870) at tcp_usrreq+0xa55 sosend(fffffd806eb3dc88,0,ffff800020e8d4a8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020ed1870,4,ffff800020e8d4a8,0,ffff800020e8d590) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020ed1870,ffff800020e8d540,ffff800020e8d590) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e8d610) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e8d610) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce7c0, count: 3 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821fe4f9) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff82672df0) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff82672df0) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff82672df0,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd806b7fc600,34c,d4,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd806b7fc600,34c,d4,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000a0caa0) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eb3dc88,9,fffffd8079eaab00,0,0,ffff800020ed1870) at tcp_usrreq+0xa55 sosend(fffffd806eb3dc88,0,ffff800020e8d4a8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020ed1870,4,ffff800020e8d4a8,0,ffff800020e8d590) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020ed1870,ffff800020e8d540,ffff800020e8d590) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e8d610) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e8d610) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce7c0, count: -12