Re: Timeout errors on HP-UX 11.11

On Fri, Oct 20, 2006 at 05:07:25PM -0500, Albert Chin wrote:
> On Fri, Oct 20, 2006 at 11:54:43PM +0200, Thomas Anders wrote:
> > Albert Chin wrote:
> > > It doesn't seem like, on 11.11, anything under $prefix/share/snmp/mibs
> > > is getting read. Running snmpd on 11.11 through tusc (HP-UX strace
> > > equivalent), I get:
> > >   stat("${HOME}/.snmp/mibs/.index", 0x7eff0dec) ............ ERR#2 ENOENT
> > >   stat("${HOME}/.snmp/mibs", 0x7eff0fd0) ................... ERR#2 ENOENT
> > >   stat("/opt/TWWfsw/netsnmp53/share/mibs/.index", 0x7eff0dec) = 0
> > >   stat("/opt/TWWfsw/netsnmp53/share/mibs", 0x7eff0d84) ..... = 0
> > >   open("/opt/TWWfsw/netsnmp53/share/mibs/.index", O_RDONLY, 0666) = 5
> > > 
> > > I don't see this on 11.11.
> > > 
> > Some proposals/questions:
> > - run the agent with -Dparse-mibs
> 
> Doing it. No mib dirs are being read on 11.11. It doesn't look like
> init_mib() is being called on 11.11.

Ok, found the problem. Building net-snmp on HP-UX requires -lnm
(because -lnm provides open_mib() which files like
agent/mibgroup/mibII/at.c depend on). -lnm provides an implementation
of init_mib():
  $ nm -BCpg /usr/lib/libnm.sl | grep init_mib
  0000031096 T  init_mib
  0000031144 T  init_mib

The default object file format for HP-UX/PA is SOM, not ELF. So, if
you load multiple shared libraries with duplicate symbols, there is
_no_ guarantee as to which symbol will be used from which library. Or,
maybe there is and I don't know it. Anyway, don't use duplicate
symbols on HP-UX.

Renaming init_mib in net-snmp-5.3.1 to init_net_snmp_mib fixed the
problem. The fact that 'make test' worked on 11.00 and 11.23/PA was
pure luck.

Test #59 is still failing, but the no other failures are reported with
the above change.

-- 
albert chin ([email protected])

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