Hi,
My DNS program gets a SIGBUS when I execute it. I have ktraced it, upped
limits and searched in the mips64 source for answers, could this be a compiler
problem?
ktrace----->
41651 dddctl CALL connect(6,0xfffffcacb0,16)
41651 dddctl STRU struct sockaddr { AF_INET, 192.168.177.2:10053 }
41651 dddctl RET connect 0
41651 dddctl CALL kbind(0xfffffc9b48,24,0x801d30cbade359aa)
41651 dddctl RET kbind 0
41651 dddctl PSIG SIGBUS SIG_DFL code BUS_ADRALN<1> addr=0xfffffca17d
trapno=0
82637 dddctl RET wait4 41651/0xa2b3
<-----------
The SIGBUS code ADRALN I have found in /sys/arch/mips64/mips64/trap.c around
line 463 on OpenBSD 6.6:
------------>
case T_ADDR_ERR_LD+T_USER: /* misaligned or kseg access */
case T_ADDR_ERR_ST+T_USER: /* misaligned or kseg access */
ucode = 0; /* XXX should be PROT_something */
signal = SIGBUS;
sicode = BUS_ADRALN;
break;
<-----------
I have also set the stack ulimit to 32K but no relief. I'm stuck, wondering
if you guys can help with interpreting this.
My program can be downloaded with
ftp https://delphinusdns.org/download/snapshot/delphinusdnsd-snapshot.tgz
Where it's remade at midnight CET every day.
As far as I know it should work on macppc although this particular function
wasn't tested on macppc. And it works on amd64 as I run this delphinusdnsd
in production on my personal nameservers. Getting this working on octeon
would broaden my test network.
Best Regards,
-peter
