[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: rsyslog: cannot load imklog.so on Hurd (undefined symbol)

On Sat, 02 Jul 2016 16:48:40 +0300 Kalle Olavi Niemitalo <kon@iki.fi> wrote:
> Package: rsyslog
> Version: 8.16.0-1+b4
> Severity: normal
> User: debian-hurd@lists.debian.org
> Usertags: hurd
> I get this to /var/log/syslog on each boot:
> Jul  2 16:19:36 luuska rsyslogd: [origin software="rsyslogd" swVersion="8.16.0" x-pid="1207" x-info="http://www.rsyslog.com";] start
> Jul  2 16:19:36 luuska rsyslogd-2066: could not load module '/usr/lib/rsyslog/imklog.so', dlopen: /usr/lib/rsyslog/imklog.so: undefined symbol: klogWillRunPrePrivDrop  [v8.16.0 try http://www.rsyslog.com/e/2066 ]
> and although gnumach writes "unexpected RESEND from keyboard" to
> the console when I use a key combination to unfocus the
> virtualbox window, rsyslog does not forward that message to
> /var/log/kern.log.
> The error happens because the build system of rsyslog does not
> recognize the GNU Hurd and builds imklog.so without compiling
> bsd.c, which would define the missing symbols.  To fix that,
> one would first have to patch configure.ac so it recognizes
> ${host}=i586-pc-gnu and sets os_type="bsd".  (config.guess would
> output "i686-unknown-gnu0.8" instead but that doesn't matter here
> because dh_auto_configure provides the --build= option.)
> That change would fix the missing symbols but rsyslog would then
> hit a Hurd bug: https://savannah.gnu.org/bugs/?48371 "read(fd,
> NULL, 0) from /dev/klog blocks until there is data".  This causes
> rsyslog to block on startup.  To work around it, you can #if out
> the read call and related code in plugins/imklog/bsd.c
> (klogWillRunPostPrivDrop).  Then it'll start quickly and actually
> log the kernel messages.
> After those fixes, rsyslog would still be slow to exit when the
> OS is shut down.  I haven't tried to find the reason for that.
> I do not intend to publish any patches for rsyslog but I hope
> this description will help someone else fix the bug.

Is anyone from the GNU/Hurd porters interested in addressing this issue?

If not, I'm inclined to close this bug report.


Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

Attachment: signature.asc
Description: OpenPGP digital signature

Reply to: