login: panic: pWoAoRlN_IcNaGc:h e_SPiLt eNmO_Tm aLgOWicER_EcDh ecOkN: SmYbSuCfApLl L cp1u3 7 f-r2e2e 03l3i6s t EXmIoTd if0 i9e d : Stopped at savectx+0xb1: movl $0,%gs:0x530 TID PID UID PRFLAGS PFLAGS CPU COMMAND *243098 50678 0 0x2 0 0 syz-executor.0 214049 15307 0 0x14000 0x200 1 softnet savectx() at savectx+0xb1 end of kernel end trace frame: 0x7f7ffffca340, 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 0xfffffd8079856900+16 0x0!=0x8c42c26fdd0994c5 ddb{0}> trace savectx() at savectx+0xb1 end of kernel end trace frame: 0x7f7ffffca340, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020ed77a0 rbx 0 rdx 0x8b rcx 0x2 rax 0x39 r8 0xffffffff81d5511f kprintf+0x16f r9 0x1 r10 0x2 r11 0x627f590051d02aa4 r12 0 r13 0 r14 0xffff800020dddd48 r15 0 rip 0xffffffff81a703f1 savectx+0xb1 cs 0x8 rflags 0x46 rsp 0xffff800020ed7720 ss 0x10 savectx+0xb1: movl $0,%gs:0x530 ddb{0}> show proc PROC (syz-executor.0) pid=243098 stat=onproc flags process=2 proc=0 pri=17, usrpri=56, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc008,0xffff800020dddae8 process=0xffff800020e39728 user=0xffff800020ed2000, vmspace=0xfffffd807f000b80 estcpu=36, cpticks=2, pctcpu=0.10 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 98170 98161 45098 0 2 0 syz-executor.1 98170 446215 45098 0 3 0x4000080 bpf syz-executor.1 19811 389218 0 0 3 0x14200 bored sosplice 45098 416034 3651 0 3 0x82 nanosleep syz-executor.1 *50678 243098 3651 0 7 0x2 syz-executor.0 3651 106348 80305 0 3 0x82 thrsleep syz-fuzzer 3651 336493 80305 0 3 0x4000082 nanosleep syz-fuzzer 3651 284319 80305 0 3 0x4000082 thrsleep syz-fuzzer 3651 380355 80305 0 3 0x4000082 thrsleep syz-fuzzer 3651 172508 80305 0 3 0x4000082 thrsleep syz-fuzzer 3651 520910 80305 0 3 0x4000082 thrsleep syz-fuzzer 3651 30023 80305 0 3 0x4000082 thrsleep syz-fuzzer 3651 112669 80305 0 3 0x4000082 thrsleep syz-fuzzer 3651 128766 80305 0 3 0x4000082 thrsleep syz-fuzzer 3651 126700 80305 0 3 0x4000082 thrsleep syz-fuzzer 3651 224700 80305 0 3 0x4000082 kqread syz-fuzzer 80305 194232 34105 0 3 0x10008a pause ksh 34105 269748 48032 0 3 0x92 select sshd 92114 486485 1 0 3 0x100083 ttyin getty 48032 482870 1 0 3 0x80 select sshd 35439 8177 5544 74 3 0x100092 bpf pflogd 5544 116182 1 0 3 0x80 netio pflogd 20208 303657 83046 73 3 0x100090 kqread syslogd 83046 1342 1 0 3 0x100082 netio syslogd 96371 109268 1 77 3 0x100090 poll dhclient 60547 463268 1 0 3 0x80 poll dhclient 77825 381016 0 0 3 0x14200 bored smr 11469 490377 0 0 3 0x14200 pgzero zerothread 28696 367031 0 0 3 0x14200 aiodoned aiodoned 35087 393392 0 0 3 0x14200 syncer update 68157 3741 0 0 3 0x14200 cleaner cleaner 17324 303986 0 0 3 0x14200 reaper reaper 62915 213787 0 0 3 0x14200 pgdaemon pagedaemon 11845 409266 0 0 3 0x14200 bored crynlk 15594 94411 0 0 3 0x14200 bored crypto 70062 279135 0 0 3 0x40014200 acpi0 acpi0 81958 443737 0 0 3 0x40014200 idle1 15307 214049 0 0 7 0x14200 softnet 80492 221772 0 0 3 0x14200 bored systqmp 32201 11016 0 0 3 0x14200 bored systq 61368 11408 0 0 3 0x40014200 bored softclock 49516 488094 0 0 3 0x40014200 idle0 1 44682 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &bq->bufq_mtx r = 0 (0xffff80000017ad68) #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 bufq_dequeue+0x2c sys/kern/kern_bufq.c:199 #4 sdstart+0x9f sys/scsi/sd.c:683 #5 scsi_iopool_run+0x129 scsi_ioh_pending sys/scsi/scsi_base.c:404 [inline] #5 scsi_iopool_run+0x129 sys/scsi/scsi_base.c:420 #6 scsi_xsh_runqueue+0x210 sys/scsi/scsi_base.c:596 #7 scsi_xsh_add+0xc9 sys/scsi/scsi_base.c:535 #8 sdstrategy+0x187 sys/scsi/sd.c:585 #9 spec_strategy+0x74 sys/kern/spec_vnops.c:473 #10 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:712 #11 bwrite+0x1b9 sys/kern/vfs_bio.c:756 #12 ffs_update+0x2c2 sys/ufs/ffs/ffs_inode.c:113 #13 ffs_truncate+0xc76 #14 ufs_rmdir+0x3af sys/ufs/ufs/ufs_vnops.c:1355 #15 VOP_RMDIR+0xf8 sys/kern/vfs_vops.c:474 #16 dounlinkat+0x14c sys/kern/vfs_syscalls.c:1886 #17 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #17 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #18 Xsyscall+0x128 Process 50678 (syz-executor.0) thread 0xffff800020dddd48 (243098) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82911f98) #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 ufs_dirremove+0x291 #9 ufs_rmdir+0x247 sys/ufs/ufs/ufs_vnops.c:1328 #10 VOP_RMDIR+0xf8 sys/kern/vfs_vops.c:474 #11 dounlinkat+0x14c sys/kern/vfs_syscalls.c:1886 #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 (0xfffffd8068c18d60) #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 (0xfffffd8068c18810) #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 exclusive mutex &bq->bufq_mtx r = 0 (0xffff80000017ad68) #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 bufq_dequeue+0x2c sys/kern/kern_bufq.c:199 #4 sdstart+0x9f sys/scsi/sd.c:683 #5 scsi_iopool_run+0x129 scsi_ioh_pending sys/scsi/scsi_base.c:404 [inline] #5 scsi_iopool_run+0x129 sys/scsi/scsi_base.c:420 #6 scsi_xsh_runqueue+0x210 sys/scsi/scsi_base.c:596 #7 scsi_xsh_add+0xc9 sys/scsi/scsi_base.c:535 #8 sdstrategy+0x187 sys/scsi/sd.c:585 #9 spec_strategy+0x74 sys/kern/spec_vnops.c:473 #10 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:712 #11 bwrite+0x1b9 sys/kern/vfs_bio.c:756 #12 ffs_update+0x2c2 sys/ufs/ffs/ffs_inode.c:113 #13 ffs_truncate+0xc76 #14 ufs_rmdir+0x3af sys/ufs/ufs/ufs_vnops.c:1355 #15 VOP_RMDIR+0xf8 sys/kern/vfs_vops.c:474 #16 dounlinkat+0x14c sys/kern/vfs_syscalls.c:1886 #17 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #17 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #18 Xsyscall+0x128 Process 15307 (softnet) thread 0xffff800020d884e0 (214049) exclusive rwlock netlock r = 0 (0xffffffff827527c8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 if_input_process+0x85 sys/net/if.c:935 #2 ifiq_process+0x80 sys/net/ifq.c:646 #3 taskq_thread+0xec sys/kern/kern_task.c:437 #4 proc_trampoline+0x1c shared rwlock softnet r = 0 (0xffff80000002c070) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 taskq_thread+0xdf sys/kern/kern_task.c:436 #2 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9500 6597K 7176K 78643K 10934 0 pcb 13 8K 8K 78643K 29 0 rtable 112 3K 7K 78643K 258 0 ifaddr 51 11K 12K 78643K 67 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 4K 78643K 1482 0 iov 0 0K 16K 78643K 10 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1317 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 12 0K 0K 78643K 17 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 108 0 proc 61 63K 95K 78643K 454 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 11 0 in_multi 37 2K 2K 78643K 46 0 ether_multi 1 0K 0K 78643K 6 0 mrt 0 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 215 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 120 22K 24K 78643K 1266 0 UVM aobj 4 2K 2K 78643K 4 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 8 0 NDP 7 0K 0K 78643K 12 0 temp 74 3856K 3928K 78643K 3167 0 kqueue 3 4K 6K 78643K 4 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 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 21 0 19 1 0 1 1 0 8 0 rtentry 112 48 0 1 2 0 2 2 0 8 0 unpcb 120 69 0 59 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 154 0 154 1 0 1 1 0 8 1 tcpcb 544 30 0 26 1 0 1 1 0 8 0 inpcb 296 184 0 177 2 0 2 2 0 8 1 nd6 48 8 0 0 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 1 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 pfrktable 1344 20 0 20 1 0 1 1 0 8 1 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 21 0 0 1 0 1 1 0 8 0 pfstkey 112 21 0 0 1 0 1 1 0 8 0 pfstate 328 21 0 0 2 0 2 2 0 8 0 pfrule 1360 23 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 218 0 0 14 0 14 14 0 8 0 art_table 32 219 0 0 2 0 2 2 0 8 0 art_node 16 47 0 5 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 13 0 3 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1535 0 131 89 0 89 89 0 8 0 ffsino 272 1535 0 131 95 1 94 94 0 8 0 nchpl 144 1859 0 251 60 0 60 60 0 8 0 uvmvnodes 72 1662 0 0 31 0 31 31 0 8 0 vnodes 208 1662 0 0 88 0 88 88 0 8 0 namei 1024 5030 0 5030 2 1 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 6 0 6 1 0 1 1 0 8 1 scxspl 192 5688 0 5688 8 1 7 7 0 8 7 plimitpl 152 17 0 9 1 0 1 1 0 8 0 sigapl 424 324 0 292 4 0 4 4 0 8 0 futexpl 56 1505 0 1505 1 0 1 1 0 8 1 knotepl 112 62 0 43 1 0 1 1 0 8 0 kqueuepl 144 10 0 8 1 0 1 1 0 8 0 pipelkpl 48 91 0 81 1 0 1 1 0 8 0 pipepl 120 182 0 163 1 0 1 1 0 8 0 fdescpl 496 308 0 292 3 0 3 3 0 8 0 filepl 152 1698 0 1596 6 1 5 5 0 8 1 lockfpl 104 35 0 34 1 0 1 1 0 8 0 lockfspl 48 11 0 10 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 97 0 88 1 0 1 1 0 8 0 zombiepl 144 292 0 292 2 1 1 1 0 8 1 processpl 984 324 0 292 6 1 5 5 0 8 0 procpl 624 507 0 464 4 0 4 4 0 8 0 sosppl 128 2 0 2 1 0 1 1 0 8 1 sockpl 400 274 0 255 5 1 4 4 0 8 2 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 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 mcl2k 2048 175 0 0 21 0 21 21 0 8 0 mtagpl 96 51 0 0 2 0 2 2 0 8 0 mbufpl 256 203 0 0 13 0 13 13 0 8 0 bufpl 280 3606 0 133 249 0 249 249 0 8 0 anonpl 16 44435 0 28219 67 1 66 66 0 124 0 amapchunkpl 152 1654 0 1502 14 0 14 14 0 158 7 amappl16 192 1239 0 365 44 0 44 44 0 8 0 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 101 0 94 1 0 1 1 0 8 0 amappl13 168 30 0 26 1 0 1 1 0 8 0 amappl12 160 84 0 79 2 1 1 1 0 8 0 amappl11 152 62 0 47 1 0 1 1 0 8 0 amappl10 144 18 0 14 1 0 1 1 0 8 0 amappl9 136 390 0 389 1 0 1 1 0 8 0 amappl8 128 337 0 307 1 0 1 1 0 8 0 amappl7 120 118 0 107 1 0 1 1 0 8 0 amappl6 112 24 0 21 1 0 1 1 0 8 0 amappl5 104 162 0 146 1 0 1 1 0 8 0 amappl4 96 533 0 499 1 0 1 1 0 8 0 amappl3 88 145 0 138 1 0 1 1 0 8 0 amappl2 80 1555 0 1483 2 0 2 2 0 8 0 amappl1 72 16688 0 16239 23 11 12 18 0 8 2 amappl 80 754 0 708 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 308 0 292 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 308 0 292 1 0 1 1 0 8 0 vmmpekpl 168 6525 0 6492 2 0 2 2 0 8 0 vmmpepl 168 44684 0 42646 116 5 111 111 0 357 22 vmsppl 368 307 0 292 2 0 2 2 0 8 0 pdppl 4096 623 0 584 7 1 6 6 0 8 1 pvpl 32 151886 0 132546 162 0 162 162 0 265 5 pmappl 232 307 0 292 2 0 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 264 0 7 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: 0x7f7ffffca340, count: -1 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 x86_bus_space_io_write_1(3f8,0,20) at x86_bus_space_io_write_1+0x45 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,20) at comcnputc+0x131 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,20) at comcnputc+0x131 sys/dev/ic/com.c:1254 cnputc(20) at cnputc+0x4c sys/dev/cons.c:239 kputchar(20,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x15c sys/kern/subr_prf.c:700 panic(ffffffff823f976d) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff823f976d) at panic+0xf3 sys/kern/subr_prf.c:197 pool_cache_get(ffffffff82912b20) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff82912b20) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff82912b20,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd806d5e1000,1600,c4,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd806d5e1000,1600,c4,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ada320) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_input(ffff800020da9008,ffff800020da9014,6,2) at tcp_input+0x2356 end trace frame: 0xffff800020da8ec0, 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 x86_bus_space_io_write_1(3f8,0,20) at x86_bus_space_io_write_1+0x45 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,20) at comcnputc+0x131 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,20) at comcnputc+0x131 sys/dev/ic/com.c:1254 cnputc(20) at cnputc+0x4c sys/dev/cons.c:239 kputchar(20,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x15c sys/kern/subr_prf.c:700 panic(ffffffff823f976d) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff823f976d) at panic+0xf3 sys/kern/subr_prf.c:197 pool_cache_get(ffffffff82912b20) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff82912b20) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff82912b20,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd806d5e1000,1600,c4,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd806d5e1000,1600,c4,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000ada320) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_input(ffff800020da9008,ffff800020da9014,6,2) at tcp_input+0x2356 ip_deliver(ffff800020da9008,ffff800020da9014,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668 ip_ours(ffff800020da9008,ffff800020da9014,ffff800020d884e0,0) at ip_ours+0x412 ip_input_if(ffff800020da9008,ffff800020da9014,4,0,ffff80000017b2a8) at ip_input_if+0x6ce ipv4_input(ffff80000017b2a8,fffffd807cd83e00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017b2a8,fffffd807cd83e00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017b2a8,ffff800020da9138) at if_input_process+0x10b if_ih_input sys/net/if.c:902 [inline] if_input_process(ffff80000017b2a8,ffff800020da9138) at if_input_process+0x10b sys/net/if.c:936 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: -22