On 12 Sep 2007 at 23:28, Kern Sibbald wrote:

> On Wednesday 12 September 2007 23:13, Martin Simmons wrote:
> > >>>>> On Wed, 12 Sep 2007 16:53:40 -0400, Dan Langille said:
> > >
> > > On 12 Sep 2007 at 22:42, Kern Sibbald wrote:
> > > > On Wednesday 12 September 2007 21:25, Dan Langille wrote:
> > >
> > > [EMAIL PROTECTED]:~/src/BaculaRegressionTesting] $ gdb bin/bacula-fd 
> > > bacula-
> > > fd.core
> > > GNU gdb 6.1.1 [FreeBSD]
> > > Copyright 2004 Free Software Foundation, Inc.
> > > GDB is free software, covered by the GNU General Public License, and
> > > you are
> > > welcome to change it and/or distribute copies of it under certain
> > > conditions.
> > > Type "show copying" to see the conditions.
> > > There is absolutely no warranty for GDB.  Type "show warranty" for
> > > details.
> > > This GDB was configured as "i386-marcel-freebsd"...
> > > Core was generated by `bacula-fd'.
> > > Program terminated with signal 11, Segmentation fault.
> > > Reading symbols from /lib/libz.so.4...done.
> > > Loaded symbols for /lib/libz.so.4
> > > Reading symbols from /lib/libthr.so.3...done.
> > > Loaded symbols for /lib/libthr.so.3
> > > Reading symbols from /usr/local/lib/libintl.so.8...done.
> > > Loaded symbols for /usr/local/lib/libintl.so.8
> > > Reading symbols from /usr/local/lib/libiconv.so.3...done.
> > > Loaded symbols for /usr/local/lib/libiconv.so.3
> > > Reading symbols from /usr/lib/libssl.so.5...done.
> > > Loaded symbols for /usr/lib/libssl.so.5
> > > Reading symbols from /lib/libcrypto.so.5...done.
> > > Loaded symbols for /lib/libcrypto.so.5
> > > Reading symbols from /usr/lib/libstdc++.so.6...done.
> > > Loaded symbols for /usr/lib/libstdc++.so.6
> > > Reading symbols from /lib/libm.so.5...done.
> > > Loaded symbols for /lib/libm.so.5
> > > Reading symbols from /lib/libgcc_s.so.1...done.
> > > Loaded symbols for /lib/libgcc_s.so.1
> > > Reading symbols from /lib/libc.so.7...done.
> > > Loaded symbols for /lib/libc.so.7
> > > Reading symbols from /libexec/ld-elf.so.1...done.
> > > Loaded symbols for /libexec/ld-elf.so.1
> > > #0  get_first_port_host_order (addrs=0x5a5a5a5a) at address_conf.h:64
> > > 64      address_conf.h: No such file or directory.
> > >         in address_conf.h
> > > [New Thread 0x28601200 (LWP 100058)]
> > > [New Thread 0x28601100 (LWP 100478)]
> > > (gdb) backtrace
> > > #0  get_first_port_host_order (addrs=0x5a5a5a5a) at address_conf.h:64
> > > #1  0x0804cc93 in terminate_filed (sig=15) at filed.c:238
> > > #2  0x0807dbf9 in signal_handler (sig=15) at signal.c:180
> > > #3  0xbfbfffb4 in ?? ()
> > > #4  0x0000000f in ?? ()
> > > #5  0x00000000 in ?? ()
> > > #6  0xbf9febc0 in ?? ()
> > > #7  0x00000000 in ?? ()
> > > #8  0x0807d940 in init_stack_dump () at signal.c:190
> > > #9  0x280e41de in pthread_cond_init () from /lib/libthr.so.3
> > > #10 0x08081588 in watchdog_thread (arg=0x0) at watchdog.c:307
> > > #11 0x280dda7f in pthread_getprio () from /lib/libthr.so.3
> > > #12 0x00000000 in ?? ()
> > > Current language:  auto; currently c++
> > > (gdb)
> > >
> > > > By the way, I think there is a problem with your kernel/debugger.  The
> > > > stack dump after about frame 10 looks to me like they have gone too
> > > > far, perhaps into another thread or something ...
> > >
> > > Could that happen if I did a gdb on a old core?  That is, one which
> > > was not produced from the current source code?
> >
> > I think it is because the system libraries are compiled with optimization
> > and without debug info so gdb doesn't know how to generate the backtrace.
> 
> Yes that is possible.  In any case, it isn't serious as it seems pretty clear 
> once I scratched my head for a while -- just ignore the stuff after it goes 
> into the signal handler ...
> 
> By the way, I have sent Dan my potential fix for this. 

That patch caused no bacula-fd.core on my systems.  I'll run a few 
more tests overnight.

-- 
Dan Langille - http://www.langille.org/
Available for hire: http://www.freebsddiary.org/dan_langille.php



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