panic: receive 1a: so 0xfffffd806f6644b0, so_type 3, m 0xfffffd80644e6d00, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 491523 4724 0 0 0x4000080 0 syz-executor.1 *471997 40289 0 0 0 1 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823f5e94) at panic+0x164 sys/kern/subr_prf.c:218 soreceive(fffffd806f6644b0,0,ffff800020e1e808,0,0,ffff800020e1e714) at soreceive+0x174a sys/kern/uipc_socket.c:983 soo_read(fffffd80763f3428,ffff800020e1e808,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1e808,0,ffff800020e1e8f0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1e8a0,ffff800020e1e8f0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e970) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e970) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffedd30, count: 7 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 receive 1a: so 0xfffffd806f6644b0, so_type 3, m 0xfffffd80644e6d00, m_type 0 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823f5e94) at panic+0x164 sys/kern/subr_prf.c:218 soreceive(fffffd806f6644b0,0,ffff800020e1e808,0,0,ffff800020e1e714) at soreceive+0x174a sys/kern/uipc_socket.c:983 soo_read(fffffd80763f3428,ffff800020e1e808,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1e808,0,ffff800020e1e8f0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1e8a0,ffff800020e1e8f0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e970) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e970) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffedd30, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020e1e550 rbx 0xffff800020e1e600 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffff800020e1e510 r9 0xffffffff81379bbf kprintf+0x16f r10 0x1 r11 0x93adb50df36a09d6 r12 0x3000000008 r13 0xffff800020e1e560 r14 0x100 r15 0x1 rip 0xffffffff81f0e6b8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020e1e540 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (dhclient) pid=471997 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddd118,0xffff800020ddc768 process=0xffff800020df0f90 user=0xffff800020e19000, vmspace=0xfffffd807efff450 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 4724 98452 35328 0 2 0 syz-executor.1 4724 491523 35328 0 7 0x4000080 syz-executor.1 44938 267034 0 0 3 0x14200 bored sosplice 35328 16066 5350 0 3 0x82 nanosleep syz-executor.1 42147 265052 5350 0 3 0x82 piperd syz-executor.0 5350 301343 12761 0 3 0x82 thrsleep syz-fuzzer 5350 319461 12761 0 3 0x4000082 nanosleep syz-fuzzer 5350 347363 12761 0 3 0x4000082 thrsleep syz-fuzzer 5350 203782 12761 0 3 0x4000082 thrsleep syz-fuzzer 5350 500898 12761 0 3 0x4000082 thrsleep syz-fuzzer 5350 75318 12761 0 2 0x4000002 syz-fuzzer 5350 508436 12761 0 3 0x4000082 thrsleep syz-fuzzer 5350 53025 12761 0 3 0x4000082 kqread syz-fuzzer 12761 378411 73993 0 3 0x10008a pause ksh 73993 413209 13984 0 3 0x92 select sshd 58851 486300 1 0 3 0x100083 ttyin getty 13984 422013 1 0 3 0x80 select sshd 67652 468712 89005 74 3 0x100092 bpf pflogd 89005 51960 1 0 3 0x80 netio pflogd 51582 259157 68875 73 3 0x100090 kqread syslogd 68875 239622 1 0 3 0x100082 netio syslogd 63072 416491 1 77 3 0x100090 poll dhclient *40289 471997 1 0 7 0 dhclient 812 196368 0 0 3 0x14200 bored smr 34432 321474 0 0 2 0x14200 zerothread 26024 17528 0 0 3 0x14200 aiodoned aiodoned 570 294311 0 0 3 0x14200 syncer update 77336 191217 0 0 3 0x14200 cleaner cleaner 88068 410138 0 0 3 0x14200 reaper reaper 82559 88356 0 0 3 0x14200 pgdaemon pagedaemon 17886 119775 0 0 3 0x14200 bored crynlk 77845 460854 0 0 3 0x14200 bored crypto 41887 139464 0 0 3 0x40014200 acpi0 acpi0 83576 79234 0 0 3 0x40014200 idle1 24884 331005 0 0 3 0x14200 bored softnet 36463 480118 0 0 3 0x14200 bored systqmp 46215 77138 0 0 3 0x14200 bored systq 10308 164125 0 0 3 0x40014200 bored softclock 26883 156259 0 0 3 0x40014200 idle0 1 152564 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 (0xffffffff82900370) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 wakeup_n+0x37 sys/kern/kern_synch.c:589 #2 futex_requeue+0x116 sys/kern/sys_futex.c:300 #3 sys_futex+0x150 sys/kern/sys_futex.c:117 #4 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #5 Xsyscall+0x128 Process 4724 (syz-executor.1) thread 0xffff800020e9cd70 (98452) exclusive rwlock futex r = 0 (0xffffffff82708300) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 sys_futex+0x13d sys/kern/sys_futex.c:116 #2 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #2 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #3 Xsyscall+0x128 Process 40289 (dhclient) thread 0xffff800020ddc008 (471997) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82934728) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x66 sys/kern/uipc_socket2.c:292 #2 soreceive+0x114 sys/kern/uipc_socket.c:737 #3 soo_read+0x53 sys/kern/sys_socket.c:70 #4 dofilereadv+0x1a1 sys/kern/sys_generic.c:237 #5 sys_read+0x83 sys/kern/sys_generic.c:157 #6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9522 6423K 6679K 78643K 11529 0 pcb 13 8K 8K 78643K 99 0 rtable 111 5K 7K 78643K 463 0 ifaddr 75 15K 15K 78643K 174 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1561 0 iov 0 0K 24K 78643K 55 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1461 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 15 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 116 0 dirhash 9 1K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 612 0 proc 62 63K 83K 78643K 480 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 61 0 in_multi 42 2K 2K 78643K 159 0 ether_multi 1 0K 0K 78643K 9 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 85 387K 387K 78643K 85 0 exec 0 0K 1K 78643K 248 0 pfkey data 0 0K 1K 78643K 1 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 156 58K 58K 78643K 2820 0 UVM aobj 34 4K 4K 78643K 36 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 54 0 NDP 12 0K 0K 78643K 36 0 temp 131 3867K 3931K 78643K 4787 0 kqueue 3 4K 14K 78643K 18 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 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 55 0 53 1 0 1 1 0 8 0 rtentry 112 80 0 38 2 0 2 2 0 8 0 unpcb 120 297 0 287 1 0 1 1 0 8 0 syncache 264 7 0 7 3 3 0 1 0 8 0 tcpqe 32 280 0 280 2 2 0 1 0 8 0 tcpcb 544 139 0 135 2 1 1 2 0 8 0 inpcb 296 490 0 483 5 3 2 2 0 8 1 nd6 48 29 0 24 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 ppxss 1136 2 0 2 2 2 0 1 0 8 0 pffrag 232 3 0 3 2 1 1 1 0 482 1 pffrnode 88 3 0 3 2 1 1 1 0 8 1 pffrent 40 137 0 137 3 2 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 pfrktable 1344 55 0 53 3 2 1 1 0 8 0 pfstitem 24 14 0 12 1 0 1 1 0 8 0 pfstkey 112 14 0 12 1 0 1 1 0 8 0 pfstate 328 14 0 12 2 1 1 2 0 8 0 pfrule 1360 37 0 25 3 2 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 226 0 40 13 1 12 12 0 8 0 art_table 32 227 0 40 2 0 2 2 0 8 0 art_node 16 79 0 40 1 0 1 1 0 8 0 sysvmsgpl 40 35 0 20 1 0 1 1 0 8 0 semapl 112 114 0 104 1 0 1 1 0 8 0 shmpl 112 33 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 10 3 1 2 3 0 8 0 dino2pl 256 2279 0 878 88 0 88 88 0 8 0 ffsino 272 2279 0 878 94 0 94 94 0 8 0 nchpl 144 3447 0 1839 60 0 60 60 0 8 0 uvmvnodes 72 2500 0 0 46 0 46 46 0 8 0 vnodes 208 2500 0 0 132 0 132 132 0 8 0 namei 1024 12188 0 12188 4 3 1 1 0 8 1 percpumem 16 38 0 6 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 5 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 13 0 13 3 3 0 1 0 8 0 scxspl 192 9691 0 9691 9 8 1 7 0 8 1 plimitpl 152 67 0 59 1 0 1 1 0 8 0 sigapl 424 828 0 796 4 0 4 4 0 8 0 futexpl 56 10183 0 10183 4 3 1 1 0 8 1 knotepl 112 94 0 74 1 0 1 1 0 8 0 kqueuepl 144 488 0 486 1 0 1 1 0 8 0 pipepl 304 144 0 133 6 4 2 2 0 8 1 fdescpl 496 812 0 796 3 0 3 3 0 8 0 filepl 152 6241 0 6138 7 2 5 5 0 8 0 lockfpl 104 151 0 150 1 0 1 1 0 8 0 lockfspl 48 56 0 55 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 44 0 33 1 0 1 1 0 8 0 ucredpl 96 1810 0 1801 1 0 1 1 0 8 0 zombiepl 144 796 0 796 2 1 1 1 0 8 1 processpl 992 828 0 796 6 1 5 5 0 8 0 procpl 624 2010 0 1970 7 3 4 4 0 8 0 sosppl 128 7 0 7 3 2 1 1 0 8 1 sockpl 400 846 0 827 7 4 3 4 0 8 1 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 214 0 0 26 1 25 26 0 8 0 mtagpl 96 47 0 0 2 0 2 2 0 8 0 mbufpl 256 471 0 0 25 0 25 25 0 8 0 bufpl 280 4215 0 129 292 0 292 292 0 8 0 anonpl 16 85017 0 66987 89 16 73 87 0 124 0 amapchunkpl 152 4282 0 3956 17 0 17 17 0 158 0 amappl16 192 3444 0 2639 52 11 41 51 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 58 0 56 1 0 1 1 0 8 0 amappl13 168 37 0 33 1 0 1 1 0 8 0 amappl12 160 21 0 19 1 0 1 1 0 8 0 amappl11 152 110 0 94 1 0 1 1 0 8 0 amappl10 144 539 0 533 1 0 1 1 0 8 0 amappl9 136 364 0 363 1 0 1 1 0 8 0 amappl8 128 334 0 303 2 0 2 2 0 8 0 amappl7 120 613 0 600 1 0 1 1 0 8 0 amappl6 112 34 0 26 1 0 1 1 0 8 0 amappl5 104 636 0 618 1 0 1 1 0 8 0 amappl4 96 552 0 523 1 0 1 1 0 8 0 amappl3 88 201 0 192 1 0 1 1 0 8 0 amappl2 80 5386 0 5315 2 0 2 2 0 8 0 amappl1 72 31480 0 31043 23 13 10 18 0 8 0 amappl 80 2298 0 2216 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 35 0 2 1 0 1 1 0 8 0 uaddrrnd 24 817 0 798 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 817 0 798 1 0 1 1 0 8 0 vmmpekpl 168 10207 0 10170 2 0 2 2 0 8 0 vmmpepl 168 108498 0 106495 118 27 91 112 0 357 0 vmsppl 368 816 0 798 2 0 2 2 0 8 0 pdppl 4096 1641 0 1599 8 2 6 6 0 8 0 pvpl 32 278173 0 256956 217 42 175 203 0 265 3 pmappl 232 816 0 798 4 2 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 289 0 20 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82752ff0) 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 __sanitizer_cov_trace_cmp4(ffffffff82934520,ffffffff82934520) at __sanitizer_cov_trace_cmp4+0xb kd_curproc sys/dev/kcov.c:130 [inline] __sanitizer_cov_trace_cmp4(ffffffff82934520,ffffffff82934520) at __sanitizer_cov_trace_cmp4+0xb trace_cmp sys/dev/kcov.c:102 [inline] __sanitizer_cov_trace_cmp4(ffffffff82934520,ffffffff82934520) at __sanitizer_cov_trace_cmp4+0xb sys/dev/kcov.c:131 __mp_acquire_count(ffffffff82934520,2) 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(ffff8000230ea870,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff8000230ea870,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff8000230ea870,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 rwsleep(ffff800020e9b2a0,ffffffff827082f0,120,ffffffff823ffe99,0) at rwsleep+0x11b sys/kern/kern_synch.c:313 futex_wait(4db70bffc40,6,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:254 sys_futex(ffff800020e9b2a0,ffff8000230eaa10,ffff8000230eaa60) at sys_futex+0x114 sys/kern/sys_futex.c:110 syscall(ffff8000230eaae0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230eaae0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4db44a5c170, count: 2 ddb{0}> trace x86_ipi_db(ffffffff82752ff0) 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 __sanitizer_cov_trace_cmp4(ffffffff82934520,ffffffff82934520) at __sanitizer_cov_trace_cmp4+0xb kd_curproc sys/dev/kcov.c:130 [inline] __sanitizer_cov_trace_cmp4(ffffffff82934520,ffffffff82934520) at __sanitizer_cov_trace_cmp4+0xb trace_cmp sys/dev/kcov.c:102 [inline] __sanitizer_cov_trace_cmp4(ffffffff82934520,ffffffff82934520) at __sanitizer_cov_trace_cmp4+0xb sys/dev/kcov.c:131 __mp_acquire_count(ffffffff82934520,2) 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(ffff8000230ea870,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff8000230ea870,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff8000230ea870,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 rwsleep(ffff800020e9b2a0,ffffffff827082f0,120,ffffffff823ffe99,0) at rwsleep+0x11b sys/kern/kern_synch.c:313 futex_wait(4db70bffc40,6,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:254 sys_futex(ffff800020e9b2a0,ffff8000230eaa10,ffff8000230eaa60) at sys_futex+0x114 sys/kern/sys_futex.c:110 syscall(ffff8000230eaae0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230eaae0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4db44a5c170, count: -13 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(ffffffff823f5e94) at panic+0x164 sys/kern/subr_prf.c:218 soreceive(fffffd806f6644b0,0,ffff800020e1e808,0,0,ffff800020e1e714) at soreceive+0x174a sys/kern/uipc_socket.c:983 soo_read(fffffd80763f3428,ffff800020e1e808,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1e808,0,ffff800020e1e8f0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1e8a0,ffff800020e1e8f0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e970) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e970) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffedd30, count: 7 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823f5e94) at panic+0x164 sys/kern/subr_prf.c:218 soreceive(fffffd806f6644b0,0,ffff800020e1e808,0,0,ffff800020e1e714) at soreceive+0x174a sys/kern/uipc_socket.c:983 soo_read(fffffd80763f3428,ffff800020e1e808,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1e808,0,ffff800020e1e8f0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1e8a0,ffff800020e1e8f0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e970) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e970) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffedd30, count: -8