Hello,
I see (since a long time) crashes of the authoritative Nameserver with
powerdns-2.6.21-svn (on all svn-snapshots). After a crash with signal 10
(SIGBUS) a new instance of the authoritative server starts and all seems
to be ok again. I have not found the reason for this behaviour until now.
The powerdns server runs herse only with gmysql-backend (without bind-
backend) in my test-configuration. On Linux, there is no problem and no
crashes with SIGBUS (i think, there is no Buserror on x86-Linux-Systems,
or am i wrong about that?). In notice the crashes on Solaris8 on Sparcv9,
compiled as 32-Bit-Software.
I have thought long time ago, that the reason could be the use of
libmysqlclient.so instead of the reentrent Version libmysqlclient_r.so,
so i patched configure.in (and some other files) to use the reentrent
library-Version, but no success in that case.
I also installed some patches to get around some quirks with "stdint.h"
and the "RDTSC" (which does not run on Solaris/Sparc), also to get around
double definition of "ns_t_*" constants (in dns.hh, on Solaris8/Sparc,
these values are already defined ...). Also the epollmplexer.cc makes
problems on Solaris8/Sparc, so i deleted it from pdns/Makefile.am ...
There is also a small patch necessary, because there is no <net/ethernet.h>
on Solaris8/Sparc (it is <sys/ethernet.h> on that platform).
I think, there is something in the code, which leads in some rare cases
to some "unaligned memory-access", which makes no problem on x86, but which
leads to SIGBUS on Sparc-CPU. Do you have an idea about the part of code,
which could lead to unaligned memory-access?
Tell me, if you are interested in my list of patches (which i installed
once, to compile powerdns on my systems, and which will be preserved with
everey "svn update" until now), i will send them via e-mail, if you are
interested. Without some patches, it is IMHO impossible to compile powerdns
successfully on Solaris8/Sparc (at least when using gcc3.4.x). I compiled
powerdns with the Option"--with-modules="gmysql pdns pipe geo" and
--with-dynmodules="gmysql pdns pipe geo", but i only have launched the
gmysql backend in my default configuration ...
The crashes of pdns authoritative Server on Solaris8/Sparc are now only
about every 12-16 hours, since i have updated to rev1001, with older
version, i sometimes noticed them several time per hour ...
If you are interested to get a binary-Distribution of powerdns for
Solaris Sparc, i can give you my compiled version.
Thanks for the good work on powerdns until now, but i would be glad, if
you can give me some information about the possible places in the code,
which can lead to the buserrors on Sparc machines ...
bye,
Juergen Ilse ([EMAIL PROTECTED])
--
Ein Domainname (auch wenn er Teil einer Mailadresse ist) ist nur ein Name,
nicht mehr und nicht weniger ...
_______________________________________________
Pdns-users mailing list
[email protected]
http://mailman.powerdns.com/mailman/listinfo/pdns-users
