panic: poolW_AcRaNIcNheG:_i StPemL _NmaOTg iLcO_WcEhReEckD :O Nm buSYfSplCA cLLp u0 f13r6ee E XlIiTs t 0m 9o d ifStopped at savectx+0xb1: movl $0,%gs:0x530 TID PID UID PRFLAGS PFLAGS CPU COMMAND *406499 70060 0 0 0x4000000 0 syz-executor.0 362185 42161 0 0 0x4000000 1 syz-executor.1 savectx() at savectx+0xb1 end of kernel end trace frame: 0xd04be41c740, count: 14 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_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806a88fe00+16 0x0!=0xd92d11fb23b77030 ddb{0}> trace savectx() at savectx+0xb1 end of kernel end trace frame: 0xd04be41c740, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800022fcbeb0 rbx 0 rdx 0x8b rcx 0x2 rax 0x33 r8 0xffffffff81ecd59f kprintf+0x16f r9 0x1 r10 0x2 r11 0x5fb3c7ecd0ab3c34 r12 0 r13 0 r14 0xffff800020ec7398 r15 0 rip 0xffffffff81cc53f1 savectx+0xb1 cs 0x8 rflags 0x46 rsp 0xffff800022fcbe30 ss 0 savectx+0xb1: movl $0,%gs:0x530 ddb{0}> show proc PROC (syz-executor.0) pid=406499 stat=onproc flags process=0 proc=4000000 pri=17, usrpri=74, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec6c48,0xffffffff82678b88 process=0xffff800020e93b08 user=0xffff800022fc6000, vmspace=0xfffffd8064d91b90 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 70060 52854 53917 0 2 0 syz-executor.0 *70060 406499 53917 0 7 0x4000000 syz-executor.0 42161 385575 80070 0 2 0 syz-executor.1 42161 362185 80070 0 7 0x4000000 syz-executor.1 53917 367348 88230 0 3 0x82 nanosleep syz-executor.0 1719 123853 1 0 3 0x100083 ttyin getty 80070 507731 88230 0 3 0x82 nanosleep syz-executor.1 56900 205652 0 0 3 0x14200 acct acct 85145 469962 0 0 3 0x14200 bored sosplice 88230 465178 98798 0 3 0x82 thrsleep syz-fuzzer 88230 427710 98798 0 3 0x4000082 thrsleep syz-fuzzer 88230 66441 98798 0 3 0x4000082 thrsleep syz-fuzzer 88230 402969 98798 0 3 0x4000082 thrsleep syz-fuzzer 88230 413055 98798 0 3 0x4000082 thrsleep syz-fuzzer 88230 364477 98798 0 3 0x4000082 thrsleep syz-fuzzer 88230 375232 98798 0 3 0x4000082 thrsleep syz-fuzzer 88230 510306 98798 0 3 0x4000082 thrsleep syz-fuzzer 88230 484501 98798 0 3 0x4000082 thrsleep syz-fuzzer 88230 124679 98798 0 3 0x4000082 kqread syz-fuzzer 98798 279805 83360 0 3 0x10008a pause ksh 83360 87491 84400 0 3 0x92 select sshd 84400 73326 1 0 3 0x80 select sshd 51293 139693 54263 74 3 0x100092 bpf pflogd 54263 50955 1 0 3 0x80 netio pflogd 30696 230298 88552 73 3 0x100090 kqread syslogd 88552 63822 1 0 3 0x100082 netio syslogd 87543 159043 1 77 3 0x100090 poll dhclient 29159 152205 1 0 3 0x80 poll dhclient 37740 341548 0 0 3 0x14200 bored smr 49706 332355 0 0 2 0x14200 zerothread 64298 146063 0 0 3 0x14200 aiodoned aiodoned 47000 369773 0 0 3 0x14200 syncer update 98818 446287 0 0 3 0x14200 cleaner cleaner 23416 25865 0 0 3 0x14200 reaper reaper 28444 115852 0 0 3 0x14200 pgdaemon pagedaemon 63646 346766 0 0 3 0x14200 bored crynlk 7967 279408 0 0 3 0x14200 bored crypto 79275 366778 0 0 3 0x40014200 acpi0 acpi0 19032 93745 0 0 3 0x40014200 idle1 48400 512890 0 0 3 0x14200 bored softnet 29334 213683 0 0 3 0x14200 bored systqmp 1622 480205 0 0 3 0x14200 bored systq 16482 270956 0 0 3 0x40014200 bored softclock 38144 413798 0 0 3 0x40014200 idle0 1 243723 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &iopl->mtx r = 0 (0xffff800000038170) #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 scsi_iopool_run+0x7d scsi_ioh_pending sys/scsi/scsi_base.c:405 [inline] #3 scsi_iopool_run+0x7d sys/scsi/scsi_base.c:420 #4 scsi_xsh_runqueue+0x210 sys/scsi/scsi_base.c:596 #5 scsi_xsh_add+0xc9 sys/scsi/scsi_base.c:535 #6 sdstrategy+0x187 sys/scsi/sd.c:585 #7 spec_strategy+0x74 sys/kern/spec_vnops.c:468 #8 ufs_strategy+0x17c #9 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:712 #10 bwrite+0x1b9 sys/kern/vfs_bio.c:756 #11 VOP_BWRITE+0x4a sys/kern/vfs_vops.c:724 #12 ufs_direnter+0x8e3 sys/ufs/ufs/ufs_lookup.c:909 #13 ufs_mkdir+0x70b sys/ufs/ufs/ufs_vnops.c:1251 #14 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #15 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #16 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #16 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #17 Xsyscall+0x128 Process 70060 (syz-executor.0) thread 0xffff800020ec7398 (406499) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8263f188) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 #2 mi_switch+0x392 sys/kern/sched_bsd.c:435 #3 sleep_finish+0x113 sys/kern/kern_synch.c:418 #4 sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] #4 sleep_finish_all+0x32 sys/kern/kern_synch.c:393 #5 tsleep+0x1cc sys/kern/kern_synch.c:155 #6 biowait+0xa6 sys/kern/vfs_bio.c:1256 #7 bwrite+0x1e4 sys/kern/vfs_bio.c:765 #8 VOP_BWRITE+0x4a sys/kern/vfs_vops.c:724 #9 ufs_mkdir+0x6b7 sys/ufs/ufs/ufs_vnops.c:1248 #10 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #11 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #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 exclusive rrwlock inode r = 0 (0xfffffd80649f74d8) #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 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1358 #5 ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80649f7b38) #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 domkdirat+0x75 sys/kern/vfs_syscalls.c:3036 #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 exclusive mutex &iopl->mtx r = 0 (0xffff800000038170) #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 scsi_iopool_run+0x7d scsi_ioh_pending sys/scsi/scsi_base.c:405 [inline] #3 scsi_iopool_run+0x7d sys/scsi/scsi_base.c:420 #4 scsi_xsh_runqueue+0x210 sys/scsi/scsi_base.c:596 #5 scsi_xsh_add+0xc9 sys/scsi/scsi_base.c:535 #6 sdstrategy+0x187 sys/scsi/sd.c:585 #7 spec_strategy+0x74 sys/kern/spec_vnops.c:468 #8 ufs_strategy+0x17c #9 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:712 #10 bwrite+0x1b9 sys/kern/vfs_bio.c:756 #11 VOP_BWRITE+0x4a sys/kern/vfs_vops.c:724 #12 ufs_direnter+0x8e3 sys/ufs/ufs/ufs_lookup.c:909 #13 ufs_mkdir+0x70b sys/ufs/ufs/ufs_vnops.c:1251 #14 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #15 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #16 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #16 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #17 Xsyscall+0x128 Process 42161 (syz-executor.1) thread 0xffff800020ec6c48 (362185) exclusive rwlock netlock r = 0 (0xffffffff8253a638) #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 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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9573 6514K 6996K 78643K 12864 0 pcb 13 8K 8K 78643K 205 0 rtable 95 4K 4K 78643K 700 0 ifaddr 108 20K 20K 78643K 329 0 counters 43 33K 34K 78643K 115 0 ioctlops 0 0K 4K 78643K 1554 0 iov 0 0K 16K 78643K 213 0 mount 1 1K 1K 78643K 1 0 vnodes 1227 77K 78K 78643K 2037 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 17 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 385 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 1303 0 sigio 0 0K 0K 78643K 12 0 proc 63 63K 95K 78643K 790 0 subproc 32 2K 2K 78643K 119 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 95 0 in_multi 119 5K 6K 78643K 264 0 ether_multi 1 0K 0K 78643K 32 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 73 334K 334K 78643K 73 0 exec 0 0K 1K 78643K 411 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 172 122K 122K 78643K 5629 0 UVM aobj 51 2K 3K 78643K 61 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 179 0 NDP 18 0K 1K 78643K 68 0 temp 156 3051K 3119K 78643K 44837 0 kqueue 3 4K 16K 78643K 52 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 20 0 14 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 107 0 105 1 0 1 1 0 8 0 rtentry 112 115 0 79 2 0 2 2 0 8 0 unpcb 120 805 0 794 1 0 1 1 0 8 0 syncache 264 24 0 24 9 9 0 1 0 8 0 tcpqe 32 175 0 175 4 4 0 1 0 8 0 tcpcb 544 438 0 434 1 0 1 1 0 8 0 inpcb 280 1300 0 1292 8 7 1 2 0 8 0 rttmr 72 2 0 2 2 2 0 1 0 8 0 nd6 48 24 0 17 1 0 1 1 0 8 0 pkpcb 40 12 0 12 4 4 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 8 0 8 5 5 0 1 0 8 0 pffrag 232 15 0 15 5 4 1 1 0 482 1 pffrnode 88 15 0 15 5 4 1 1 0 8 1 pffrent 40 376 0 376 5 4 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 24 126 0 83 1 0 1 1 0 8 0 pfstkey 112 126 0 83 2 0 2 2 0 8 0 pfstate 328 126 0 83 5 0 5 5 0 8 1 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 256 517 0 331 15 3 12 14 0 8 0 art_table 32 518 0 331 2 0 2 2 0 8 0 art_node 16 114 0 85 1 0 1 1 0 8 0 sysvmsgpl 40 31 0 24 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 379 0 369 1 0 1 1 0 8 0 shmpl 112 59 0 12 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3255 0 1848 89 0 89 89 0 8 0 ffsino 272 3255 0 1848 97 2 95 95 0 8 0 nchpl 144 5254 0 3670 60 0 60 60 0 8 0 uvmvnodes 72 3857 0 0 71 0 71 71 0 8 0 vnodes 208 3857 0 0 203 0 203 203 0 8 0 namei 1024 17514 0 17514 2 1 1 1 0 8 1 percpumem 16 68 0 36 1 0 1 1 0 8 0 vcpupl 1984 12 0 0 2 0 2 2 0 8 0 vmpool 560 15 0 3 1 0 1 1 0 8 0 scsiplug 64 2 0 2 1 1 0 1 0 8 0 scxspl 192 15742 0 15742 10 9 1 7 0 8 1 plimitpl 152 113 0 105 1 0 1 1 0 8 0 sigapl 424 1506 0 1472 5 1 4 5 0 8 0 futexpl 56 19161 0 19161 2 1 1 1 0 8 1 knotepl 112 176 0 157 1 0 1 1 0 8 0 kqueuepl 144 200 0 198 1 0 1 1 0 8 0 pipelkpl 48 261 0 251 1 0 1 1 0 8 0 pipepl 120 522 0 503 1 0 1 1 0 8 0 fdescpl 496 1489 0 1472 3 0 3 3 0 8 0 filepl 152 10365 0 10261 7 2 5 6 0 8 0 lockfpl 104 326 0 324 1 0 1 1 0 8 0 lockfspl 48 120 0 118 1 0 1 1 0 8 0 sessionpl 112 24 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 19 1 0 1 1 0 8 0 ucredpl 96 944 0 934 1 0 1 1 0 8 0 zombiepl 144 1472 0 1472 1 0 1 1 0 8 1 processpl 984 1506 0 1472 5 0 5 5 0 8 0 procpl 624 4541 0 4496 4 0 4 4 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 27 0 27 6 6 0 1 0 8 0 sockpl 400 2230 0 2209 14 11 3 6 0 8 0 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 12 0 0 2 0 2 2 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 16 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 167 0 0 20 0 20 20 0 8 0 mtagpl 80 84 0 0 2 0 2 2 0 8 0 mbufpl 256 503 0 0 28 0 28 28 0 8 0 mbufpl: pool(0xffffffff8267b130:mbufpl): free list modified: page 0xfffffd807b479000; item ordinal 0; addr 0xfffffd807b479b00 (p 0xfffffd806df96000); offset 0x0=0x37d4cd9c45965f00 bufpl 280 6967 0 723 447 0 447 447 0 8 0 anonpl 16 156478 0 142179 102 37 65 76 0 124 0 amapchunkpl 152 9958 0 9822 33 27 6 20 0 158 0 amappl16 192 7840 0 7006 75 32 43 53 0 8 0 amappl15 184 117 0 113 1 0 1 1 0 8 0 amappl14 176 29 0 24 1 0 1 1 0 8 0 amappl13 168 321 0 320 1 0 1 1 0 8 0 amappl12 160 471 0 468 1 0 1 1 0 8 0 amappl11 152 374 0 357 1 0 1 1 0 8 0 amappl10 144 148 0 141 1 0 1 1 0 8 0 amappl9 136 446 0 443 1 0 1 1 0 8 0 amappl8 128 609 0 553 2 0 2 2 0 8 0 amappl7 120 262 0 248 1 0 1 1 0 8 0 amappl6 112 88 0 82 1 0 1 1 0 8 0 amappl5 104 1679 0 1660 1 0 1 1 0 8 0 amappl4 96 885 0 851 1 0 1 1 0 8 0 amappl3 88 140 0 134 1 0 1 1 0 8 0 amappl2 80 10793 0 10711 2 0 2 2 0 8 0 amappl1 72 43127 0 42661 23 13 10 18 0 8 0 amappl 80 4887 0 4836 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 60 0 10 1 0 1 1 0 8 0 uaddrrnd 24 1504 0 1475 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1504 0 1475 1 0 1 1 0 8 0 vmmpekpl 168 15612 0 15580 2 0 2 2 0 8 0 vmmpepl 168 192098 0 189906 195 78 117 123 0 357 18 vmsppl 368 1503 0 1475 3 0 3 3 0 8 0 pdppl 4096 3016 0 2962 7 0 7 7 0 8 0 pvpl 32 453785 0 436737 233 72 161 182 0 265 16 pmappl 232 1503 0 1475 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 297 0 20 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xb1 end of kernel end trace frame: 0xd04be41c740, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020e00ff0) 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_read_1(3f8,5) at x86_bus_space_io_read_1+0x3c sys/arch/amd64/amd64/bus_space.c:639 comcnputc(800,66) at comcnputc+0x1c8 sys/dev/ic/com.c:1260 cnputc(66) at cnputc+0x4c sys/dev/cons.c:239 kputchar(66,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x15c sys/kern/subr_prf.c:700 panic(ffffffff821fcd5a) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff821fcd5a) at panic+0xf3 sys/kern/subr_prf.c:197 pool_cache_get(ffffffff8267b130) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff8267b130) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff8267b130,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8068ff8d00,32b4,5a0,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8068ff8d00,32b4,5a0,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 ip_fragment(fffffd8068ff8d00,ffff80000017b2a8,5b4) at ip_fragment+0x324 ip_output(fffffd8068ff8d00,0,fffffd806f6e2ea8,20,0,fffffd806f6e2e38) at ip_output+0xfd7 sys/netinet/ip_output.c:499 end trace frame: 0xffff800022fc4bc0, count: 0 ddb{1}> trace x86_ipi_db(ffff800020e00ff0) 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_read_1(3f8,5) at x86_bus_space_io_read_1+0x3c sys/arch/amd64/amd64/bus_space.c:639 comcnputc(800,66) at comcnputc+0x1c8 sys/dev/ic/com.c:1260 cnputc(66) at cnputc+0x4c sys/dev/cons.c:239 kputchar(66,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x15c sys/kern/subr_prf.c:700 panic(ffffffff821fcd5a) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff821fcd5a) at panic+0xf3 sys/kern/subr_prf.c:197 pool_cache_get(ffffffff8267b130) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff8267b130) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff8267b130,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8068ff8d00,32b4,5a0,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8068ff8d00,32b4,5a0,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 ip_fragment(fffffd8068ff8d00,ffff80000017b2a8,5b4) at ip_fragment+0x324 ip_output(fffffd8068ff8d00,0,fffffd806f6e2ea8,20,0,fffffd806f6e2e38) at ip_output+0xfd7 sys/netinet/ip_output.c:499 rip_output(fffffd8068ff8d00,fffffd807449b830,ffff800022fc4be8,ffff80002114a000) at rip_output+0x252 sys/netinet/raw_ip.c:289 rip_usrreq(fffffd807449b830,9,fffffd8068ff8d00,0,0,ffff800020ec6c48) at rip_usrreq+0x46a sys/netinet/raw_ip.c:538 sosend(fffffd807449b830,0,ffff800022fc4d60,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 sendit(ffff800020ec6c48,7,ffff800022fc4e40,0,ffff800022fc4f20) at sendit+0x52b sys/kern/uipc_syscalls.c:657 sys_sendto(ffff800020ec6c48,ffff800022fc4ed8,ffff800022fc4f20) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:522 syscall(ffff800022fc4fa0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022fc4fa0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4de0489c9d0, count: -21