panic: unhandled af 0 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 481031 29848 0 0x800 0x2000 1 syz-executor * 24242 85203 0 0x2 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834e09b2) at panic+0x1e5 sys/kern/subr_prf.c:198 unhandled_af(0) at unhandled_af+0x1a sys/net/if.c:-1 if_output_tso(ffff80000004e858,ffff80002a288720,ffff800000c43df0,fffff00070e31bb0,5dc) at if_output_tso+0x22b ip_output(fffff00067665700,0,fffff0006fd2b070,800,0,fffff0006fd2b108,5cff7b9129de5ecc) at ip_output+0x1043 sys/netinet/ip_output.c:437 tcp_output(ffff8000015b8e60) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070 tcp_send(ffff8000015a25f0,fffff00060885500,0,0) at tcp_send+0x191 sys/netinet/tcp_usrreq.c:859 sosend(ffff8000015a25f0,0,ffff80002a288b68,0,0,80) at sosend+0x804 sys/kern/uipc_socket.c:-1 dofilewritev(ffff800045ffc008,3,ffff80002a288b68,0,ffff80002a288c20) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff800045ffc008,ffff80002a288cd0,ffff80002a288c20) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002a288cd0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a288cd0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a3358b552b0, count: 3 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 *cpu0: unhandled af 0 ddb{0}> show kasan No such command ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834e09b2) at panic+0x1e5 sys/kern/subr_prf.c:198 unhandled_af(0) at unhandled_af+0x1a sys/net/if.c:-1 if_output_tso(ffff80000004e858,ffff80002a288720,ffff800000c43df0,fffff00070e31bb0,5dc) at if_output_tso+0x22b ip_output(fffff00067665700,0,fffff0006fd2b070,800,0,fffff0006fd2b108,5cff7b9129de5ecc) at ip_output+0x1043 sys/netinet/ip_output.c:437 tcp_output(ffff8000015b8e60) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070 tcp_send(ffff8000015a25f0,fffff00060885500,0,0) at tcp_send+0x191 sys/netinet/tcp_usrreq.c:859 sosend(ffff8000015a25f0,0,ffff80002a288b68,0,0,80) at sosend+0x804 sys/kern/uipc_socket.c:-1 dofilewritev(ffff800045ffc008,3,ffff80002a288b68,0,ffff80002a288c20) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff800045ffc008,ffff80002a288cd0,ffff80002a288c20) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002a288cd0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a288cd0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a3358b552b0, count: -12 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a288500 rbx 0xffffffff8392ee07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff800045ffc008 rax 0xffffffff8392dff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x531357196620b3f0 r11 0x9d70e6f423936dda r12 0xffffffff8392ec08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff8143ba05 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a2884f0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=24242 pid=85203 tcnt=1 stat=onproc flags process=2 proc=0 runpri=32, usrpri=74, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800045ffd4c8,0xffff800045ffdca0 process=0xffff800045ff5348 user=0xffff80002a283000, vmspace=0xfffff0000b1f7988 estcpu=24, cpticks=41, pctcpu=0.18, user=0, sys=22, intr=18 ddb{0}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 29848 481031 85203 0 7 0x800 0x2000 syz-executor 9774 519404 60171 32767 3 0x10 0x80 piperd syz-executor 37562 503567 35682 32767 3 0x10 0x80 piperd syz-executor 33883 494051 30271 32767 3 0x10 0x80 piperd syz-executor 32463 220140 79496 32767 3 0x10 0x80 piperd syz-executor 93600 173817 13517 32767 3 0x10 0x80 piperd syz-executor 79849 276425 90519 32767 3 0x10 0x80 piperd syz-executor 16184 459461 27400 32767 3 0x10 0x80 piperd syz-executor 13517 163165 85203 0 3 0x2 0x80 wait syz-executor 27400 236081 85203 0 3 0x2 0x80 wait syz-executor 35682 168654 85203 0 3 0x2 0x80 wait syz-executor 79496 273759 85203 0 3 0x2 0x80 wait syz-executor 90519 452747 85203 0 3 0x2 0x80 wait syz-executor 30271 26618 85203 0 3 0x2 0x80 wait syz-executor 60171 265199 85203 0 3 0x2 0x80 wait syz-executor *85203 24242 7079 0 7 0x2 0 syz-executor 7079 225314 5247 0 3 0x100002 0x88 sigsusp ksh 5247 291931 35245 0 3 0x10 0x88 kqread sshd-session 35245 219901 3013 0 3 0x12 0x80 kqread sshd-session 1443 128343 1 0 3 0x100003 0x80 ttyin getty 3013 131736 1 0 3 0 0x88 kqread sshd 95047 114179 58153 73 3 0x1100010 0x80 kqread syslogd 58153 341098 1 0 3 0x100002 0x80 sbwait syslogd 19718 299085 1 0 3 0x100000 0x80 kqread resolvd 5442 489512 36141 77 3 0x100012 0x80 kqread dhcpleased 9749 89609 36141 77 3 0x100012 0x80 kqread dhcpleased 36141 359012 1 0 3 0 0x80 kqread dhcpleased 30382 27636 0 0 3 0x14000 0x200 bored smr 28248 17863 0 0 3 0x14000 0x200 pgzero zerothread 8836 259724 0 0 3 0x14000 0x200 aiodoned aiodoned 80556 255894 0 0 3 0x14000 0x200 syncer update 26281 326615 0 0 3 0x14000 0x200 cleaner cleaner 46064 451349 0 0 3 0x14000 0x200 reaper reaper 30113 238094 0 0 3 0x14000 0x200 pgdaemon pagedaemon 26729 88144 0 0 3 0x14000 0x200 bored viomb 88509 9464 0 0 3 0x14000 0x40000200 acpi0 acpi0 982 361418 0 0 3 0x14000 0x40000200 idle1 12398 309951 0 0 3 0x14000 0x200 bored softnet1 32406 74714 0 0 3 0x14000 0x200 bored softnet0 28484 172197 0 0 3 0x14000 0x200 bored systqmp 70042 219923 0 0 3 0x14000 0x200 bored systq 29524 138899 0 0 3 0x14000 0x200 tmoslp softclockmp 9825 200692 0 0 3 0x14000 0x40000200 tmoslp softclock 55917 26718 0 0 3 0x14000 0x40000200 idle0 1 257155 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{0}> show all locks Process 29848 (syz-executor) thread 0xffff800045fe74e0 (481031) exclusive rrwlock inode r = 0 (0xfffff0007442dc60) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:150 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1759 #8 ufs_create+0x4e sys/ufs/ufs/ufs_vnops.c:147 #9 VOP_CREATE+0xfe sys/kern/vfs_vops.c:103 #10 vn_open+0x50d sys/kern/vfs_vnops.c:118 #11 coredump+0x44b sys/kern/kern_sig.c:1974 #12 sigexit+0xd7 sys/kern/kern_sig.c:1833 #13 trapsignal+0x87e #14 usertrap+0x500 sys/arch/amd64/amd64/trap.c:653 #15 recall_trap+0x8 exclusive rrwlock inode r = 0 (0xfffff0007126a7c8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431 #6 namei+0x7c5 sys/kern/vfs_lookup.c:250 #7 vn_open+0x22e sys/kern/vfs_vnops.c:109 #8 coredump+0x44b sys/kern/kern_sig.c:1974 #9 sigexit+0xd7 sys/kern/kern_sig.c:1833 #10 trapsignal+0x87e #11 usertrap+0x500 sys/arch/amd64/amd64/trap.c:653 #12 recall_trap+0x8 Process 85203 (syz-executor) thread 0xffff800045ffc008 (24242) exclusive rwlock inet46 r = 0 (0xffff8000015a2610) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 sosend+0x78e sys/kern/uipc_socket.c:-1 #3 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #4 sys_write+0xa2 sys/kern/sys_generic.c:300 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 shared rwlock netlock r = 0 (0xffffffff8395c000) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 solock_shared+0x6e sys/kern/uipc_socket2.c:343 #3 sosend+0x78e sys/kern/uipc_socket.c:-1 #4 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #5 sys_write+0xa2 sys/kern/sys_generic.c:300 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff8000015a27d8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 sblock+0xb6 sys/kern/uipc_socket2.c:536 #3 sosend+0x2e9 sys/kern/uipc_socket.c:639 #4 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #5 sys_write+0xa2 sys/kern/sys_generic.c:300 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11049 12016K 12034K 166960K 12143 0 pcb 17 14K 16K 166960K 19 0 rtable 215 6K 7K 166960K 360 0 pf 29 16K 16K 166960K 31 0 ifaddr 38 6K 7K 166960K 44 0 ifgroup 46 2K 2K 166960K 50 0 sysctl 3 1K 9K 166960K 7 0 counters 68 36K 37K 166960K 70 0 ioctlops 0 0K 4K 166960K 36 0 iov 0 0K 8K 166960K 9 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1288 81K 81K 166960K 1523 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 17 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 17 58K 121K 166960K 427 0 sigio 0 0K 0K 166960K 2 0 proc 58 99K 147K 166960K 530 0 subproc 63 3K 4K 166960K 216 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 61 0 in_multi 88 6K 7K 166960K 109 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 16 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 398 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 187 166K 201K 166960K 5331 0 UVM aobj 9 2K 2K 166960K 11 0 pinsyscall 38 76K 110K 166960K 1527 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 18 0 NDP 10 0K 2K 166960K 27 0 temp 39 9120K 9135K 166960K 4464 0 kqueue 13 20K 28K 166960K 72 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 28 0 0 1 0 1 1 0 8 0 rtpcb 120 45 0 42 1 0 1 1 0 8 0 rtentry 176 114 0 15 6 1 5 6 0 8 0 unpcb 144 390 0 375 6 5 1 6 0 8 0 syncache 336 10 0 10 1 0 1 1 0 8 1 tcpcb 736 115 0 111 4 0 4 4 0 8 3 arp 136 18 0 2 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 2 0 2 1 1 0 1 0 8 0 inpcb 328 425 0 418 12 8 4 12 0 8 3 ip6q 72 2 0 0 1 0 1 1 0 8 0 ip6af 40 2 0 0 1 0 1 1 0 8 0 nd6 152 27 0 6 2 0 2 2 0 8 1 kcovpl 48 24 0 17 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 472 0 63 30 3 27 30 0 8 0 art_table 40 473 0 63 5 0 5 5 0 8 0 art_node 32 114 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 6 2 1 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 72 13 0 3 1 0 1 1 0 8 0 shmpl 112 8 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1931 0 448 93 0 93 93 0 8 0 ffsino 296 1931 0 448 115 0 115 115 0 8 0 nchpl 144 2444 0 746 64 0 64 64 0 8 0 vnodes 216 2156 0 0 120 0 120 120 0 8 0 namei 1024 7785 0 7783 2 1 1 2 0 8 0 percpumem 16 51 0 1 1 0 1 1 0 8 0 kstatmem 264 25 0 2 2 0 2 2 0 8 0 scxspl 216 8490 0 8490 7 6 1 6 1 8 1 plimitpl 152 103 0 81 2 0 2 2 0 8 1 sigapl 424 690 0 645 7 1 6 7 0 8 0 knotepl 120 268 0 0 9 0 9 9 0 8 1 kqueuepl 224 116 0 107 3 0 3 3 0 8 2 pipepl 344 293 0 263 9 3 6 9 0 8 3 fdescpl 528 674 0 645 3 0 3 3 0 8 0 filepl 160 3677 0 3481 18 5 13 18 0 8 3 lockfpl 104 67 0 65 1 0 1 1 0 8 0 lockfspl 48 25 0 23 1 0 1 1 0 8 0 sessionpl 144 89 0 74 1 0 1 1 0 8 0 pgrppl 48 118 0 96 1 0 1 1 0 8 0 ucredpl 104 450 0 431 1 0 1 1 0 8 0 zombiepl 144 645 0 645 1 0 1 1 0 8 1 processpl 1232 690 0 645 5 0 5 5 0 8 0 procpl 664 1091 0 1046 7 1 6 7 0 8 1 sosppl 176 2 0 2 1 1 0 1 0 8 0 sockpl 752 869 0 844 23 17 6 23 0 8 3 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k128 9344 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 114 0 0 15 0 15 15 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mextrefs 64 19 0 0 1 0 1 1 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 253 0 0 16 0 16 16 0 8 0 bufpl 272 2698 0 99 174 0 174 174 0 8 0 anonpl 32 7682 0 0 63 1 62 63 0 247 0 amapchunkpl 152 15995 0 15655 32 6 26 31 0 158 7 amappl16 200 1677 0 1663 14 12 2 14 0 8 0 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 402 0 401 1 0 1 1 0 8 0 amappl13 176 124 0 114 1 0 1 1 0 8 0 amappl12 168 904 0 876 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 58 0 48 1 0 1 1 0 8 0 amappl9 144 272 0 272 1 1 0 1 0 8 0 amappl8 136 89 0 88 1 0 1 1 0 8 0 amappl7 128 146 0 134 1 0 1 1 0 8 0 amappl6 120 151 0 150 1 0 1 1 0 8 0 amappl5 112 97 0 90 1 0 1 1 0 8 0 amappl4 104 286 0 269 1 0 1 1 0 8 0 amappl3 96 2998 0 2918 5 1 4 4 0 8 0 amappl2 88 569 0 514 2 0 2 2 0 8 0 amappl1 80 12534 0 11993 16 1 15 16 0 8 2 amappl 88 4567 0 4443 5 0 5 5 0 92 0 uvmvnodes 80 108 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 10 0 2 1 0 1 1 0 8 0 uaddrrnd 24 674 0 645 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 674 0 645 1 0 1 1 0 8 0 vmmpekpl 168 8527 0 8478 3 0 3 3 0 8 0 vmmpepl 168 52908 0 51262 108 8 100 108 0 357 11 vmsppl 488 673 0 645 7 2 5 6 0 8 0 rwobjpl 80 17903 0 17033 28 4 24 27 0 8 1 pdppl 4096 1355 0 1290 119 38 81 95 0 8 16 pvpl 32 15850 0 0 128 0 128 128 0 265 0 pmappl 256 673 0 645 4 1 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 471 0 45 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834e09b2) at panic+0x1e5 sys/kern/subr_prf.c:198 unhandled_af(0) at unhandled_af+0x1a sys/net/if.c:-1 if_output_tso(ffff80000004e858,ffff80002a288720,ffff800000c43df0,fffff00070e31bb0,5dc) at if_output_tso+0x22b ip_output(fffff00067665700,0,fffff0006fd2b070,800,0,fffff0006fd2b108,5cff7b9129de5ecc) at ip_output+0x1043 sys/netinet/ip_output.c:437 tcp_output(ffff8000015b8e60) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070 tcp_send(ffff8000015a25f0,fffff00060885500,0,0) at tcp_send+0x191 sys/netinet/tcp_usrreq.c:859 sosend(ffff8000015a25f0,0,ffff80002a288b68,0,0,80) at sosend+0x804 sys/kern/uipc_socket.c:-1 dofilewritev(ffff800045ffc008,3,ffff80002a288b68,0,ffff80002a288c20) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff800045ffc008,ffff80002a288cd0,ffff80002a288c20) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002a288cd0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a288cd0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a3358b552b0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83aa75c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83aa75c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff83aa75c0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 biowait(fffff0006d77cde0) at biowait+0xc6 sys/kern/vfs_bio.c:1110 bwrite(fffff0006d77cde0) at bwrite+0x359 sys/kern/vfs_bio.c:625 ffs_update(fffff0007442dbc0,1) at ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 ufs_makeinode(8180,fffff000701b8538,ffff80002a301d50,ffff80002a301d80) at ufs_makeinode+0x4b0 sys/ufs/ufs/ufs_vnops.c:1791 ufs_create(ffff80002a301b60) at ufs_create+0x4e sys/ufs/ufs/ufs_vnops.c:147 VOP_CREATE(fffff000701b8538,ffff80002a301d50,ffff80002a301d80,ffff80002a301be0) at VOP_CREATE+0xfe sys/kern/vfs_vops.c:103 vn_open(ffff80002a301d20,306,180) at vn_open+0x50d sys/kern/vfs_vnops.c:118 coredump(ffff800045fe74e0) at coredump+0x44b sys/kern/kern_sig.c:1974 end trace frame: 0xffff80002a301f20, count: 0 ddb{1}> trace x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83aa75c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83aa75c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff83aa75c0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 biowait(fffff0006d77cde0) at biowait+0xc6 sys/kern/vfs_bio.c:1110 bwrite(fffff0006d77cde0) at bwrite+0x359 sys/kern/vfs_bio.c:625 ffs_update(fffff0007442dbc0,1) at ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 ufs_makeinode(8180,fffff000701b8538,ffff80002a301d50,ffff80002a301d80) at ufs_makeinode+0x4b0 sys/ufs/ufs/ufs_vnops.c:1791 ufs_create(ffff80002a301b60) at ufs_create+0x4e sys/ufs/ufs/ufs_vnops.c:147 VOP_CREATE(fffff000701b8538,ffff80002a301d50,ffff80002a301d80,ffff80002a301be0) at VOP_CREATE+0xfe sys/kern/vfs_vops.c:103 vn_open(ffff80002a301d20,306,180) at vn_open+0x50d sys/kern/vfs_vnops.c:118 coredump(ffff800045fe74e0) at coredump+0x44b sys/kern/kern_sig.c:1974 sigexit(ffff800045fe74e0,5) at sigexit+0xd7 sys/kern/kern_sig.c:1833 trapsignal(ffff800045fe74e0,5,1,1,bdd14a3067c) at trapsignal+0x87e usertrap(ffff80002a3020e0) at usertrap+0x500 sys/arch/amd64/amd64/trap.c:653 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7a3358b55330, count: -18