load: 2.55 cmd: load: 2.55 cmd: panic: receive 1: so 0xfffffd806f6db320, so_type 3, sb_cc 112 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 456854 72846 0 0 0 0 syz-executor.1 * 6389 69725 0 0 0 1K dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821f12b3) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd806f6db320,0,ffff800020ead758,0,0,ffff800020ead664) at soreceive+0x16ec sys/kern/uipc_socket.c:823 soo_read(fffffd8079df4130,ffff800020ead758,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020e6c008,6,ffff800020ead758,0,ffff800020ead840) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020e6c008,ffff800020ead7f0,ffff800020ead840) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020ead8c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ead8c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1fe0, 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 1: so 0xfffffd806f6db320, so_type 3, sb_cc 112 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821f12b3) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd806f6db320,0,ffff800020ead758,0,0,ffff800020ead664) at soreceive+0x16ec sys/kern/uipc_socket.c:823 soo_read(fffffd8079df4130,ffff800020ead758,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020e6c008,6,ffff800020ead758,0,ffff800020ead840) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020e6c008,ffff800020ead7f0,ffff800020ead840) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020ead8c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ead8c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1fe0, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020ead4a0 rbx 0xffff800020ead550 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff815c718f kprintf+0x16f r9 0x1 r10 0x2 r11 0x4251ab97a0fc3e6f r12 0x3000000008 r13 0xffff800020ead4b0 r14 0x100 r15 0x1 rip 0xffffffff820cd538 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020ead490 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (dhclient) pid=6389 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e6cc38,0xffff800020e6ceb8 process=0xffff800020e80f70 user=0xffff800020ea8000, vmspace=0xfffffd807efff000 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 72846 456854 69940 0 7 0 syz-executor.1 72846 177791 69940 0 3 0x4000080 fsleep syz-executor.1 54700 273444 91254 0 2 0 syz-executor.0 54700 149653 91254 0 3 0x4000080 fsleep syz-executor.0 91254 368713 67180 0 3 0x82 nanosleep syz-executor.0 11249 237721 0 0 3 0x14200 bored sosplice 97290 406950 0 0 3 0x14280 nfsidl nfsio 72424 266110 0 0 3 0x14280 nfsidl nfsio 39151 480362 0 0 3 0x14280 nfsidl nfsio 87743 103004 0 0 3 0x14280 nfsidl nfsio 92122 487914 0 0 3 0x14280 nfsidl nfsio 81282 186820 0 0 3 0x14280 nfsidl nfsio 21589 236072 0 0 3 0x14280 nfsidl nfsio 35597 463864 0 0 3 0x14280 nfsidl nfsio 82542 401035 0 0 3 0x14280 nfsidl nfsio 88473 111811 0 0 3 0x14280 nfsidl nfsio 19833 488319 0 0 3 0x14280 nfsidl nfsio 67439 194177 0 0 3 0x14280 nfsidl nfsio 39858 471329 0 0 3 0x14280 nfsidl nfsio 46647 136976 0 0 3 0x14280 nfsidl nfsio 91951 296919 0 0 3 0x14280 nfsidl nfsio 53973 256914 0 0 3 0x14280 nfsidl nfsio 82019 156802 0 0 3 0x14280 nfsidl nfsio 45747 297164 0 0 3 0x14280 nfsidl nfsio 82741 240775 0 0 3 0x14280 nfsidl nfsio 77784 373721 0 0 3 0x14280 nfsidl nfsio 69940 488950 67180 0 3 0x82 nanosleep syz-executor.1 67180 21293 9435 0 3 0x82 kqread syz-fuzzer 67180 120891 9435 0 3 0x4000082 nanosleep syz-fuzzer 67180 384330 9435 0 3 0x4000082 thrsleep syz-fuzzer 67180 366227 9435 0 3 0x4000082 thrsleep syz-fuzzer 67180 380629 9435 0 3 0x4000082 thrsleep syz-fuzzer 67180 346639 9435 0 3 0x4000082 thrsleep syz-fuzzer 67180 446741 9435 0 3 0x4000082 thrsleep syz-fuzzer 67180 322522 9435 0 3 0x4000082 thrsleep syz-fuzzer 67180 259004 9435 0 3 0x4000082 thrsleep syz-fuzzer 67180 330902 9435 0 3 0x4000082 thrsleep syz-fuzzer 9435 497208 84603 0 3 0x10008a pause ksh 84603 282281 70284 0 3 0x92 select sshd 17912 447147 1 0 3 0x100083 ttyin getty 70284 460114 1 0 3 0x80 select sshd 3535 374570 44252 74 3 0x100092 bpf pflogd 44252 210453 1 0 3 0x80 netio pflogd 58147 69515 48208 73 3 0x100090 kqread syslogd 48208 45919 1 0 3 0x100082 netio syslogd 33964 55491 1 77 3 0x100090 poll dhclient *69725 6389 1 0 7 0 dhclient 40211 391094 0 0 3 0x14200 bored smr 33240 93339 0 0 2 0x14200 zerothread 98563 191348 0 0 3 0x14200 aiodoned aiodoned 95040 121251 0 0 3 0x14200 syncer update 28993 258817 0 0 3 0x14200 cleaner cleaner 48541 278913 0 0 3 0x14200 reaper reaper 87565 390874 0 0 3 0x14200 pgdaemon pagedaemon 31909 1924 0 0 3 0x14200 bored crynlk 86900 329398 0 0 3 0x14200 bored crypto 25383 504937 0 0 3 0x40014200 acpi0 acpi0 93285 266790 0 0 3 0x40014200 idle1 66129 385970 0 0 3 0x14200 bored softnet 98999 71326 0 0 3 0x14200 bored systqmp 46339 169803 0 0 3 0x14200 bored systq 65355 352919 0 0 3 0x40014200 bored softclock 44760 243596 0 0 3 0x40014200 idle0 1 441412 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 69725 (dhclient) thread 0xffff800020e6c008 (6389) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82669b70) #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: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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9520 6424K 6682K 78643K 11445 0 pcb 14 8K 8K 78643K 244 0 rtable 107 4K 4K 78643K 1118 0 ifaddr 80 16K 16K 78643K 235 0 counters 43 33K 34K 78643K 57 0 ioctlops 0 0K 4K 78643K 1498 0 iov 0 0K 24K 78643K 63 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1524 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 10 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 155 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 781 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 83K 78643K 550 0 subproc 32 2K 2K 78643K 68 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 21 0 in_multi 82 4K 4K 78643K 506 0 ether_multi 1 0K 0K 78643K 9 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 291 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 134 56K 56K 78643K 3276 0 UVM aobj 28 2K 2K 78643K 32 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 2 0K 0K 78643K 199 0 NDP 13 0K 0K 78643K 122 0 temp 128 3041K 3109K 78643K 16647 0 kqueue 3 4K 18K 78643K 59 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 10 0 4 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 112 449 0 407 2 0 2 2 0 8 0 unpcb 120 294 0 284 1 0 1 1 0 8 0 syncache 264 13 0 13 4 3 1 1 0 8 1 tcpqe 32 103 0 103 2 2 0 1 0 8 0 tcpcb 544 182 0 178 1 0 1 1 0 8 0 inpcb 280 1651 0 1640 3 1 2 2 0 8 1 nd6 48 108 0 104 1 0 1 1 0 8 0 swfcl 56 4 0 0 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 4 1 0 1 1 0 482 0 pffrnode 88 5 0 4 1 0 1 1 0 8 0 pffrent 40 14 0 13 2 1 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 pfstitem 24 44 0 13 1 0 1 1 0 8 0 pfstkey 112 44 0 13 1 0 1 1 0 8 0 pfstate 328 44 0 13 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 2583 0 2402 15 2 13 14 0 8 1 art_table 32 2585 0 2402 2 0 2 2 0 8 0 art_node 16 448 0 409 1 0 1 1 0 8 0 sysvmsgpl 40 26 0 22 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 153 0 143 1 0 1 1 0 8 0 shmpl 112 30 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2347 0 945 89 0 89 89 0 8 0 ffsino 272 2347 0 945 95 1 94 95 0 8 0 nchpl 144 3547 0 1957 60 0 60 60 0 8 0 uvmvnodes 72 2617 0 0 48 0 48 48 0 8 0 vnodes 208 2617 0 0 138 0 138 138 0 8 0 namei 1024 9625 0 9625 2 1 1 1 0 8 1 percpumem 16 39 0 7 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 scxspl 192 10696 0 10696 8 7 1 7 0 8 1 plimitpl 152 53 0 45 1 0 1 1 0 8 0 sigapl 424 1011 0 958 6 0 6 6 0 8 0 futexpl 56 9943 0 9941 2 1 1 1 0 8 0 knotepl 112 181 0 162 2 1 1 2 0 8 0 kqueuepl 144 369 0 366 1 0 1 1 0 8 0 pipelkpl 48 164 0 154 1 0 1 1 0 8 0 pipepl 120 328 0 309 1 0 1 1 0 8 0 fdescpl 496 975 0 958 3 0 3 3 0 8 0 filepl 152 5855 0 5750 7 2 5 7 0 8 0 lockfpl 104 132 0 131 1 0 1 1 0 8 0 lockfspl 48 41 0 40 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 72 0 61 1 0 1 1 0 8 0 ucredpl 96 512 0 502 1 0 1 1 0 8 0 zombiepl 144 958 0 958 1 0 1 1 0 8 1 processpl 984 1011 0 958 7 0 7 7 0 8 0 procpl 624 2418 0 2354 6 0 6 6 0 8 0 srpgc 64 2 0 0 1 0 1 1 0 8 0 sosppl 128 9 0 9 2 2 0 1 0 8 0 sockpl 400 2001 0 1978 8 4 4 6 0 8 1 mcl64k 65536 8 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 6 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 252 0 0 31 0 31 31 0 8 0 mtagpl 80 31 0 0 1 0 1 1 0 8 0 mbufpl 256 409 0 0 23 0 23 23 0 8 0 bufpl 280 5732 0 136 400 0 400 400 0 8 0 anonpl 16 92153 0 77392 67 7 60 64 0 124 0 amapchunkpl 152 5113 0 4978 20 12 8 20 0 158 2 amappl16 192 3531 0 2723 46 5 41 43 0 8 0 amappl15 184 529 0 525 1 0 1 1 0 8 0 amappl14 176 128 0 116 1 0 1 1 0 8 0 amappl13 168 99 0 96 1 0 1 1 0 8 0 amappl12 160 102 0 97 1 0 1 1 0 8 0 amappl11 152 431 0 414 1 0 1 1 0 8 0 amappl10 144 26 0 21 1 0 1 1 0 8 0 amappl9 136 387 0 386 1 0 1 1 0 8 0 amappl8 128 407 0 371 2 0 2 2 0 8 0 amappl7 120 133 0 119 1 0 1 1 0 8 0 amappl6 112 394 0 389 1 0 1 1 0 8 0 amappl5 104 366 0 350 1 0 1 1 0 8 0 amappl4 96 987 0 959 1 0 1 1 0 8 0 amappl3 88 230 0 223 1 0 1 1 0 8 0 amappl2 80 6221 0 6140 2 0 2 2 0 8 0 amappl1 72 29253 0 28801 23 13 10 18 0 8 0 amappl 80 2681 0 2635 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 31 0 4 1 0 1 1 0 8 0 uaddrrnd 24 980 0 960 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 980 0 960 1 0 1 1 0 8 0 vmmpekpl 168 10411 0 10367 3 0 3 3 0 8 0 vmmpepl 168 121329 0 119253 132 21 111 113 0 357 20 vmsppl 368 979 0 960 2 0 2 2 0 8 0 pdppl 4096 1968 0 1923 6 0 6 6 0 8 0 pvpl 32 316736 0 298543 169 19 150 162 0 265 2 pmappl 232 979 0 960 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 291 0 11 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff824e0ff0) 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 __mp_lock(ffffffff82669968) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82669968) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff82669968) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82669968) at __mp_lock+0x127 sys/kern/kern_lock.c:147 pageflttrap(ffff800021f79660,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff800021f79660) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffcdfe0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff824e0ff0) 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 __mp_lock(ffffffff82669968) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82669968) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff82669968) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82669968) at __mp_lock+0x127 sys/kern/kern_lock.c:147 pageflttrap(ffff800021f79660,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff800021f79660) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffcdfe0, count: -10 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(ffffffff821f12b3) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd806f6db320,0,ffff800020ead758,0,0,ffff800020ead664) at soreceive+0x16ec sys/kern/uipc_socket.c:823 soo_read(fffffd8079df4130,ffff800020ead758,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020e6c008,6,ffff800020ead758,0,ffff800020ead840) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020e6c008,ffff800020ead7f0,ffff800020ead840) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020ead8c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ead8c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1fe0, count: 7 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821f12b3) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd806f6db320,0,ffff800020ead758,0,0,ffff800020ead664) at soreceive+0x16ec sys/kern/uipc_socket.c:823 soo_read(fffffd8079df4130,ffff800020ead758,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020e6c008,6,ffff800020ead758,0,ffff800020ead840) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020e6c008,ffff800020ead7f0,ffff800020ead840) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020ead8c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ead8c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1fe0, count: -8