b•øŠ+:ƒÊ÷¯¹ØÜÑa4../bus ÿÿÿÿ./busb•øŠ+:ƒÊ÷¯¹ØÜÑa4../bus ÿÿÿÿ./buspanic: receive 1: so 0xfffffd806f6e8000, so_type 3, sb_cc 256 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 73243 80251 0 0 0 1 syz-executor.1 * 43896 83418 0 0 0 0K dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821e8276) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd806f6e8000,0,ffff800020eadc98,0,0,ffff800020eadba4) at soreceive+0x16ec sys/kern/uipc_socket.c:823 soo_read(fffffd807264c390,ffff800020eadc98,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020e6c9c8,6,ffff800020eadc98,0,ffff800020eadd80) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020e6c9c8,ffff800020eadd30,ffff800020eadd80) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020eade00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020eade00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc6a10, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic receive 1: so 0xfffffd806f6e8000, so_type 3, sb_cc 256 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821e8276) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd806f6e8000,0,ffff800020eadc98,0,0,ffff800020eadba4) at soreceive+0x16ec sys/kern/uipc_socket.c:823 soo_read(fffffd807264c390,ffff800020eadc98,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020e6c9c8,6,ffff800020eadc98,0,ffff800020eadd80) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020e6c9c8,ffff800020eadd30,ffff800020eadd80) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020eade00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020eade00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc6a10, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020ead9e0 rbx 0xffff800020eada90 rdx 0xffff800020e6c9c8 rcx 0 rax 0 r8 0xffffffff8205b1df kprintf+0x16f r9 0x1 r10 0x25 r11 0x137d7779f72f6264 r12 0x3000000008 r13 0xffff800020ead9f0 r14 0x100 r15 0x1 rip 0xffffffff8132e3b8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020ead9d0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (dhclient) pid=43896 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e6cc38,0xffff800020e6d398 process=0xffff800020e80b98 user=0xffff800020ea8000, vmspace=0xfffffd807f0002e0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 80251 73243 21841 0 7 0 syz-executor.1 80251 243594 21841 0 2 0x4000000 syz-executor.1 2009 421967 69889 0 2 0x2 syz-executor.0 35097 209525 0 0 3 0x14200 bored sosplice 21841 223509 69889 0 3 0x82 nanosleep syz-executor.1 69889 522912 94671 0 3 0x82 thrsleep syz-fuzzer 69889 295022 94671 0 3 0x4000082 nanosleep syz-fuzzer 69889 440965 94671 0 3 0x4000082 thrsleep syz-fuzzer 69889 44631 94671 0 3 0x4000082 nanosleep syz-fuzzer 69889 244507 94671 0 3 0x4000082 thrsleep syz-fuzzer 69889 101780 94671 0 3 0x4000082 thrsleep syz-fuzzer 69889 349704 94671 0 3 0x4000082 thrsleep syz-fuzzer 69889 297327 94671 0 3 0x4000082 thrsleep syz-fuzzer 69889 53898 94671 0 2 0x4000002 syz-fuzzer 69889 218042 94671 0 3 0x4000082 thrsleep syz-fuzzer 69889 433791 94671 0 3 0x4000082 thrsleep syz-fuzzer 94671 195739 81705 0 3 0x10008a pause ksh 81705 338496 21689 0 3 0x92 select sshd 41704 117867 1 0 3 0x100083 ttyin getty 21689 40748 1 0 3 0x80 select sshd 12001 157199 11486 74 3 0x100092 bpf pflogd 11486 107698 1 0 3 0x80 netio pflogd 1744 8453 8241 73 3 0x100090 kqread syslogd 8241 14401 1 0 3 0x100082 netio syslogd 73623 195172 1 77 3 0x100090 poll dhclient *83418 43896 1 0 7 0 dhclient 24833 246477 0 0 3 0x14200 bored smr 93682 432186 0 0 3 0x14200 pgzero zerothread 35574 399619 0 0 3 0x14200 aiodoned aiodoned 13899 8847 0 0 3 0x14200 syncer update 98480 438257 0 0 3 0x14200 cleaner cleaner 56628 245089 0 0 3 0x14200 reaper reaper 93884 47954 0 0 3 0x14200 pgdaemon pagedaemon 25504 415640 0 0 3 0x14200 bored crynlk 40543 63126 0 0 3 0x14200 bored crypto 72665 128408 0 0 3 0x40014200 acpi0 acpi0 24094 279980 0 0 3 0x40014200 idle1 36007 213035 0 0 3 0x14200 bored softnet 32291 278030 0 0 3 0x14200 bored systqmp 50544 210405 0 0 3 0x14200 bored systq 19382 362105 0 0 3 0x40014200 bored softclock 11577 205337 0 0 3 0x40014200 idle0 1 136385 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 83418 (dhclient) thread 0xffff800020e6c9c8 (43896) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff826822e8) #0 witness_lock+0x4c5 sys/kern/subr_witness.c:1164 #1 solock+0x66 sys/kern/uipc_socket2.c:292 #2 soreceive+0x114 sys/kern/uipc_socket.c:731 #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9528 6421K 6807K 78643K 11149 0 pcb 13 8K 8K 78643K 112 0 rtable 89 3K 5K 78643K 495 0 ifaddr 80 15K 15K 78643K 116 0 counters 45 34K 34K 78643K 51 0 ioctlops 0 0K 4K 78643K 1489 0 iov 0 0K 16K 78643K 71 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1413 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 37 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 5 13K 25K 78643K 346 0 sigio 0 0K 0K 78643K 7 0 proc 66 63K 95K 78643K 542 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 39 0 in_multi 53 3K 3K 78643K 124 0 ether_multi 1 0K 0K 78643K 16 0 mrt 0 0K 0K 78643K 2 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 266 0 pfkey data 0 0K 0K 78643K 2 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 113 70K 71K 78643K 2102 0 UVM aobj 8 2K 2K 78643K 8 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 91 0 NDP 14 0K 0K 78643K 24 0 temp 123 3042K 3109K 78643K 7528 0 kqueue 3 4K 9K 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 10 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 257 0 255 1 0 1 1 0 8 0 rtentry 112 64 0 31 2 0 2 2 0 8 0 unpcb 120 299 0 289 1 0 1 1 0 8 0 syncache 264 17 0 17 3 2 1 1 0 8 1 tcpqe 32 104 0 104 2 1 1 1 0 8 1 tcpcb 544 206 0 200 2 1 1 2 0 8 0 inpcb 280 568 0 559 2 0 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 10 0 9 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 1 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 2 0 2 2 2 0 1 0 482 0 pffrnode 88 2 0 2 2 2 0 1 0 8 0 pffrent 40 90 0 90 2 2 0 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 pfstitem 24 44 0 3 1 0 1 1 0 8 0 pfstkey 112 44 0 3 2 0 2 2 0 8 0 pfstate 328 44 0 3 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 256 259 0 129 12 0 12 12 0 8 2 art_table 32 260 0 129 2 0 2 2 0 8 0 art_node 16 63 0 33 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 10 1 0 1 1 0 8 0 semapl 112 31 0 21 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1874 0 467 46 0 46 46 0 8 0 ffsino 272 1874 0 467 94 0 94 94 0 8 0 nchpl 144 2647 0 1040 61 0 61 61 0 8 0 uvmvnodes 72 2057 0 0 38 0 38 38 0 8 0 vnodes 208 2057 0 0 109 0 109 109 0 8 0 namei 1024 7581 0 7581 1 0 1 1 0 8 1 percpumem 16 36 0 3 1 0 1 1 0 8 0 vcpupl 1984 5 0 0 1 0 1 1 0 8 0 vmpool 560 7 0 2 1 0 1 1 0 8 0 scxspl 192 7668 0 7668 8 5 3 7 0 8 3 plimitpl 152 46 0 38 1 0 1 1 0 8 0 sigapl 424 559 0 527 4 0 4 4 0 8 0 futexpl 56 5782 0 5782 1 0 1 1 0 8 1 knotepl 112 103 0 84 1 0 1 1 0 8 0 kqueuepl 144 67 0 65 1 0 1 1 0 8 0 pipelkpl 48 135 0 125 1 0 1 1 0 8 0 pipepl 120 270 0 251 1 0 1 1 0 8 0 fdescpl 496 543 0 527 3 0 3 3 0 8 0 filepl 152 3799 0 3698 6 0 6 6 0 8 2 lockfpl 104 100 0 99 1 0 1 1 0 8 0 lockfspl 48 34 0 33 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 25 0 14 1 0 1 1 0 8 0 ucredpl 96 222 0 213 1 0 1 1 0 8 0 zombiepl 144 527 0 527 1 0 1 1 0 8 1 processpl 984 559 0 527 5 0 5 5 0 8 0 procpl 624 1293 0 1250 5 1 4 5 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 400 1132 0 1111 5 1 4 5 0 8 1 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 166 0 0 20 0 20 20 0 8 0 mtagpl 80 33 0 0 1 0 1 1 0 8 0 mbufpl 256 279 0 0 17 0 17 17 0 8 0 bufpl 280 4817 0 178 332 0 332 332 0 8 0 anonpl 16 67305 0 53043 75 10 65 74 0 124 5 amapchunkpl 152 3205 0 3064 11 1 10 10 0 158 3 amappl16 192 2595 0 1801 51 9 42 51 0 8 2 amappl15 184 11 0 8 1 0 1 1 0 8 0 amappl14 176 6 0 4 2 1 1 1 0 8 0 amappl13 168 32 0 30 1 0 1 1 0 8 0 amappl12 160 166 0 163 2 1 1 1 0 8 0 amappl11 152 75 0 56 1 0 1 1 0 8 0 amappl10 144 20 0 13 1 0 1 1 0 8 0 amappl9 136 418 0 413 1 0 1 1 0 8 0 amappl8 128 345 0 329 1 0 1 1 0 8 0 amappl7 120 133 0 120 1 0 1 1 0 8 0 amappl6 112 20 0 19 1 0 1 1 0 8 0 amappl5 104 455 0 439 1 0 1 1 0 8 0 amappl4 96 523 0 490 2 1 1 2 0 8 0 amappl3 88 120 0 115 1 0 1 1 0 8 0 amappl2 80 3549 0 3476 3 1 2 3 0 8 0 amappl1 72 22114 0 21683 25 15 10 20 0 8 0 amappl 80 1560 0 1513 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 550 0 529 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 550 0 529 1 0 1 1 0 8 0 vmmpekpl 168 8092 0 8056 2 0 2 2 0 8 0 vmmpepl 168 73582 0 71658 120 6 114 114 0 357 26 vmsppl 368 549 0 529 2 0 2 2 0 8 0 pdppl 4096 1108 0 1063 7 1 6 7 0 8 0 pvpl 32 213369 0 195903 183 9 174 183 0 265 29 pmappl 232 549 0 529 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 179 0 7 5 0 5 5 0 8 0